Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * This file contains work-arounds for many known PCI hardware |
| 3 | * bugs. Devices present only on certain architectures (host |
| 4 | * bridges et cetera) should be handled in arch-specific code. |
| 5 | * |
| 6 | * Note: any quirks for hotpluggable devices must _NOT_ be declared __init. |
| 7 | * |
| 8 | * Copyright (c) 1999 Martin Mares <mj@ucw.cz> |
| 9 | * |
David Brownell | 7586269 | 2005-09-23 17:14:37 -0700 | [diff] [blame] | 10 | * Init/reset quirks for USB host controllers should be in the |
| 11 | * USB quirks file, where their drivers can access reuse it. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | */ |
| 13 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | #include <linux/types.h> |
| 15 | #include <linux/kernel.h> |
Paul Gortmaker | 363c75d | 2011-05-27 09:37:25 -0400 | [diff] [blame] | 16 | #include <linux/export.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | #include <linux/pci.h> |
| 18 | #include <linux/init.h> |
| 19 | #include <linux/delay.h> |
Len Brown | 25be5e6 | 2005-05-27 04:21:50 -0400 | [diff] [blame] | 20 | #include <linux/acpi.h> |
bjorn.helgaas@hp.com | 9f23ed3 | 2007-12-17 14:09:38 -0700 | [diff] [blame] | 21 | #include <linux/kallsyms.h> |
Andreas Petlund | 75e07fc | 2008-11-20 20:42:25 -0800 | [diff] [blame] | 22 | #include <linux/dmi.h> |
Alexander Duyck | 649426e | 2009-03-05 13:57:28 -0500 | [diff] [blame] | 23 | #include <linux/pci-aspm.h> |
Yuji Shimada | 32a9a682 | 2009-03-16 17:13:39 +0900 | [diff] [blame] | 24 | #include <linux/ioport.h> |
Arjan van de Ven | 3209874 | 2012-01-30 20:52:07 -0800 | [diff] [blame] | 25 | #include <linux/sched.h> |
| 26 | #include <linux/ktime.h> |
Douglas Lehr | 9fe373f | 2014-08-21 09:26:52 +1000 | [diff] [blame] | 27 | #include <linux/mm.h> |
Rafael J. Wysocki | 93177a7 | 2010-01-02 22:57:24 +0100 | [diff] [blame] | 28 | #include <asm/dma.h> /* isa_dma_bridge_buggy */ |
Greg KH | bc56b9e | 2005-04-08 14:53:31 +0900 | [diff] [blame] | 29 | #include "pci.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | |
Yuji Shimada | 32a9a682 | 2009-03-16 17:13:39 +0900 | [diff] [blame] | 31 | /* |
Jacob Pan | 253d2e5 | 2010-07-16 10:19:22 -0700 | [diff] [blame] | 32 | * Decoding should be disabled for a PCI device during BAR sizing to avoid |
| 33 | * conflict. But doing so may cause problems on host bridge and perhaps other |
| 34 | * key system devices. For devices that need to have mmio decoding always-on, |
| 35 | * we need to set the dev->mmio_always_on bit. |
| 36 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 37 | static void quirk_mmio_always_on(struct pci_dev *dev) |
Jacob Pan | 253d2e5 | 2010-07-16 10:19:22 -0700 | [diff] [blame] | 38 | { |
Yinghai Lu | 52d21b5 | 2012-02-23 23:46:53 -0800 | [diff] [blame] | 39 | dev->mmio_always_on = 1; |
Jacob Pan | 253d2e5 | 2010-07-16 10:19:22 -0700 | [diff] [blame] | 40 | } |
Yinghai Lu | 52d21b5 | 2012-02-23 23:46:53 -0800 | [diff] [blame] | 41 | DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_ANY_ID, PCI_ANY_ID, |
| 42 | PCI_CLASS_BRIDGE_HOST, 8, quirk_mmio_always_on); |
Jacob Pan | 253d2e5 | 2010-07-16 10:19:22 -0700 | [diff] [blame] | 43 | |
Doug Thompson | bd8481e | 2006-05-08 17:06:09 -0700 | [diff] [blame] | 44 | /* The Mellanox Tavor device gives false positive parity errors |
| 45 | * Mark this device with a broken_parity_status, to allow |
| 46 | * PCI scanning code to "skip" this now blacklisted device. |
| 47 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 48 | static void quirk_mellanox_tavor(struct pci_dev *dev) |
Doug Thompson | bd8481e | 2006-05-08 17:06:09 -0700 | [diff] [blame] | 49 | { |
| 50 | dev->broken_parity_status = 1; /* This device gives false positives */ |
| 51 | } |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 52 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR, quirk_mellanox_tavor); |
| 53 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX, PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE, quirk_mellanox_tavor); |
Doug Thompson | bd8481e | 2006-05-08 17:06:09 -0700 | [diff] [blame] | 54 | |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 55 | /* Deal with broken BIOSes that neglect to enable passive release, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | which can cause problems in combination with the 82441FX/PPro MTRRs */ |
Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 57 | static void quirk_passive_release(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | { |
| 59 | struct pci_dev *d = NULL; |
| 60 | unsigned char dlc; |
| 61 | |
| 62 | /* We have to make sure a particular bit is set in the PIIX3 |
| 63 | ISA bridge, so we have to go out and find it. */ |
| 64 | while ((d = pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, d))) { |
| 65 | pci_read_config_byte(d, 0x82, &dlc); |
| 66 | if (!(dlc & 1<<1)) { |
Adam Jackson | 999da9f | 2008-12-01 14:30:29 -0800 | [diff] [blame] | 67 | dev_info(&d->dev, "PIIX3: Enabling Passive Release\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | dlc |= 1<<1; |
| 69 | pci_write_config_byte(d, 0x82, dlc); |
| 70 | } |
| 71 | } |
| 72 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 73 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release); |
| 74 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_passive_release); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | |
| 76 | /* The VIA VP2/VP3/MVP3 seem to have some 'features'. There may be a workaround |
| 77 | but VIA don't answer queries. If you happen to have good contacts at VIA |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 78 | ask them for me please -- Alan |
| 79 | |
| 80 | This appears to be BIOS not version dependent. So presumably there is a |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | chipset level fix */ |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 82 | |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 83 | static void quirk_isa_dma_hangs(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | { |
| 85 | if (!isa_dma_bridge_buggy) { |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 86 | isa_dma_bridge_buggy = 1; |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 87 | dev_info(&dev->dev, "Activating ISA DMA hang workarounds\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | } |
| 89 | } |
| 90 | /* |
| 91 | * Its not totally clear which chipsets are the problematic ones |
| 92 | * We know 82C586 and 82C596 variants are affected. |
| 93 | */ |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 94 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0, quirk_isa_dma_hangs); |
| 95 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C596, quirk_isa_dma_hangs); |
| 96 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371SB_0, quirk_isa_dma_hangs); |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 97 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, quirk_isa_dma_hangs); |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 98 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_1, quirk_isa_dma_hangs); |
| 99 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_2, quirk_isa_dma_hangs); |
| 100 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_CBUS_3, quirk_isa_dma_hangs); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | /* |
Len Brown | 4731fdc | 2010-09-24 21:02:27 -0400 | [diff] [blame] | 103 | * Intel NM10 "TigerPoint" LPC PM1a_STS.BM_STS must be clear |
| 104 | * for some HT machines to use C4 w/o hanging. |
| 105 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 106 | static void quirk_tigerpoint_bm_sts(struct pci_dev *dev) |
Len Brown | 4731fdc | 2010-09-24 21:02:27 -0400 | [diff] [blame] | 107 | { |
| 108 | u32 pmbase; |
| 109 | u16 pm1a; |
| 110 | |
| 111 | pci_read_config_dword(dev, 0x40, &pmbase); |
| 112 | pmbase = pmbase & 0xff80; |
| 113 | pm1a = inw(pmbase); |
| 114 | |
| 115 | if (pm1a & 0x10) { |
| 116 | dev_info(&dev->dev, FW_BUG "TigerPoint LPC.BM_STS cleared\n"); |
| 117 | outw(0x10, pmbase); |
| 118 | } |
| 119 | } |
| 120 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TGP_LPC, quirk_tigerpoint_bm_sts); |
| 121 | |
| 122 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | * Chipsets where PCI->PCI transfers vanish or hang |
| 124 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 125 | static void quirk_nopcipci(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | { |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 127 | if ((pci_pci_problems & PCIPCI_FAIL) == 0) { |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 128 | dev_info(&dev->dev, "Disabling direct PCI/PCI transfers\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | pci_pci_problems |= PCIPCI_FAIL; |
| 130 | } |
| 131 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 132 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5597, quirk_nopcipci); |
| 133 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_496, quirk_nopcipci); |
Alan Cox | 236561e | 2006-09-30 23:27:03 -0700 | [diff] [blame] | 134 | |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 135 | static void quirk_nopciamd(struct pci_dev *dev) |
Alan Cox | 236561e | 2006-09-30 23:27:03 -0700 | [diff] [blame] | 136 | { |
| 137 | u8 rev; |
| 138 | pci_read_config_byte(dev, 0x08, &rev); |
| 139 | if (rev == 0x13) { |
| 140 | /* Erratum 24 */ |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 141 | dev_info(&dev->dev, "Chipset erratum: Disabling direct PCI/AGP transfers\n"); |
Alan Cox | 236561e | 2006-09-30 23:27:03 -0700 | [diff] [blame] | 142 | pci_pci_problems |= PCIAGP_FAIL; |
| 143 | } |
| 144 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 145 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8151_0, quirk_nopciamd); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | |
| 147 | /* |
| 148 | * Triton requires workarounds to be used by the drivers |
| 149 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 150 | static void quirk_triton(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | { |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 152 | if ((pci_pci_problems&PCIPCI_TRITON) == 0) { |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 153 | dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | pci_pci_problems |= PCIPCI_TRITON; |
| 155 | } |
| 156 | } |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 157 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437, quirk_triton); |
| 158 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437VX, quirk_triton); |
| 159 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439, quirk_triton); |
| 160 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82439TX, quirk_triton); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | |
| 162 | /* |
| 163 | * VIA Apollo KT133 needs PCI latency patch |
| 164 | * Made according to a windows driver based patch by George E. Breese |
| 165 | * see PCI Latency Adjust on http://www.viahardware.com/download/viatweak.shtm |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 166 | * Also see http://www.au-ja.org/review-kt133a-1-en.phtml for |
| 167 | * the info on which Mr Breese based his work. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | * |
| 169 | * Updated based on further information from the site and also on |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 170 | * information provided by VIA |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 171 | */ |
Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 172 | static void quirk_vialatency(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | { |
| 174 | struct pci_dev *p; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | u8 busarb; |
| 176 | /* Ok we have a potential problem chipset here. Now see if we have |
| 177 | a buggy southbridge */ |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 178 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 179 | p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, NULL); |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 180 | if (p != NULL) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | /* 0x40 - 0x4f == 686B, 0x10 - 0x2f == 686A; thanks Dan Hollis */ |
| 182 | /* Check for buggy part revisions */ |
Auke Kok | 2b1afa8 | 2007-10-29 14:55:02 -0700 | [diff] [blame] | 183 | if (p->revision < 0x40 || p->revision > 0x42) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | goto exit; |
| 185 | } else { |
| 186 | p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, NULL); |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 187 | if (p == NULL) /* No problem parts */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | goto exit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | /* Check for buggy part revisions */ |
Auke Kok | 2b1afa8 | 2007-10-29 14:55:02 -0700 | [diff] [blame] | 190 | if (p->revision < 0x10 || p->revision > 0x12) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | goto exit; |
| 192 | } |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 193 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | /* |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 195 | * Ok we have the problem. Now set the PCI master grant to |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | * occur every master grant. The apparent bug is that under high |
| 197 | * PCI load (quite common in Linux of course) you can get data |
| 198 | * loss when the CPU is held off the bus for 3 bus master requests |
| 199 | * This happens to include the IDE controllers.... |
| 200 | * |
| 201 | * VIA only apply this fix when an SB Live! is present but under |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 202 | * both Linux and Windows this isn't enough, and we have seen |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 203 | * corruption without SB Live! but with things like 3 UDMA IDE |
| 204 | * controllers. So we ignore that bit of the VIA recommendation.. |
| 205 | */ |
| 206 | |
| 207 | pci_read_config_byte(dev, 0x76, &busarb); |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 208 | /* Set bit 4 and bi 5 of byte 76 to 0x01 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | "Master priority rotation on every PCI master grant */ |
| 210 | busarb &= ~(1<<5); |
| 211 | busarb |= (1<<4); |
| 212 | pci_write_config_byte(dev, 0x76, busarb); |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 213 | dev_info(&dev->dev, "Applying VIA southbridge workaround\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | exit: |
| 215 | pci_dev_put(p); |
| 216 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 217 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency); |
| 218 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency); |
| 219 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency); |
Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 220 | /* Must restore this on a resume from RAM */ |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 221 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8363_0, quirk_vialatency); |
| 222 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8371_1, quirk_vialatency); |
| 223 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8361, quirk_vialatency); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | |
| 225 | /* |
| 226 | * VIA Apollo VP3 needs ETBF on BT848/878 |
| 227 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 228 | static void quirk_viaetbf(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 229 | { |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 230 | if ((pci_pci_problems&PCIPCI_VIAETBF) == 0) { |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 231 | dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 232 | pci_pci_problems |= PCIPCI_VIAETBF; |
| 233 | } |
| 234 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 235 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_viaetbf); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 237 | static void quirk_vsfx(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | { |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 239 | if ((pci_pci_problems&PCIPCI_VSFX) == 0) { |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 240 | dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | pci_pci_problems |= PCIPCI_VSFX; |
| 242 | } |
| 243 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 244 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C576, quirk_vsfx); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | |
| 246 | /* |
| 247 | * Ali Magik requires workarounds to be used by the drivers |
| 248 | * that DMA to AGP space. Latency must be set to 0xA and triton |
| 249 | * workaround applied too |
| 250 | * [Info kindly provided by ALi] |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 251 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 252 | static void quirk_alimagik(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | { |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 254 | if ((pci_pci_problems&PCIPCI_ALIMAGIK) == 0) { |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 255 | dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | pci_pci_problems |= PCIPCI_ALIMAGIK|PCIPCI_TRITON; |
| 257 | } |
| 258 | } |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 259 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1647, quirk_alimagik); |
| 260 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1651, quirk_alimagik); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | |
| 262 | /* |
| 263 | * Natoma has some interesting boundary conditions with Zoran stuff |
| 264 | * at least |
| 265 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 266 | static void quirk_natoma(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 267 | { |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 268 | if ((pci_pci_problems&PCIPCI_NATOMA) == 0) { |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 269 | dev_info(&dev->dev, "Limiting direct PCI/PCI transfers\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 270 | pci_pci_problems |= PCIPCI_NATOMA; |
| 271 | } |
| 272 | } |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 273 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82441, quirk_natoma); |
| 274 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_0, quirk_natoma); |
| 275 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443LX_1, quirk_natoma); |
| 276 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_0, quirk_natoma); |
| 277 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_1, quirk_natoma); |
| 278 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_2, quirk_natoma); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 279 | |
| 280 | /* |
| 281 | * This chip can cause PCI parity errors if config register 0xA0 is read |
| 282 | * while DMAs are occurring. |
| 283 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 284 | static void quirk_citrine(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 285 | { |
| 286 | dev->cfg_size = 0xA0; |
| 287 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 288 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, quirk_citrine); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 289 | |
Jason S. McMullan | 9f33a2a | 2015-09-30 15:35:07 +0900 | [diff] [blame] | 290 | /* |
| 291 | * This chip can cause bus lockups if config addresses above 0x600 |
| 292 | * are read or written. |
| 293 | */ |
| 294 | static void quirk_nfp6000(struct pci_dev *dev) |
| 295 | { |
| 296 | dev->cfg_size = 0x600; |
| 297 | } |
Simon Horman | c2e771b | 2015-12-11 11:30:12 +0900 | [diff] [blame] | 298 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_ID_NETRONOME_NFP4000, quirk_nfp6000); |
Jason S. McMullan | 9f33a2a | 2015-09-30 15:35:07 +0900 | [diff] [blame] | 299 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_ID_NETRONOME_NFP6000, quirk_nfp6000); |
| 300 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NETRONOME, PCI_DEVICE_ID_NETRONOME_NFP6000_VF, quirk_nfp6000); |
| 301 | |
Douglas Lehr | 9fe373f | 2014-08-21 09:26:52 +1000 | [diff] [blame] | 302 | /* On IBM Crocodile ipr SAS adapters, expand BAR to system page size */ |
| 303 | static void quirk_extend_bar_to_page(struct pci_dev *dev) |
| 304 | { |
| 305 | int i; |
| 306 | |
| 307 | for (i = 0; i < PCI_STD_RESOURCE_END; i++) { |
| 308 | struct resource *r = &dev->resource[i]; |
| 309 | |
| 310 | if (r->flags & IORESOURCE_MEM && resource_size(r) < PAGE_SIZE) { |
| 311 | r->end = PAGE_SIZE - 1; |
| 312 | r->start = 0; |
| 313 | r->flags |= IORESOURCE_UNSET; |
| 314 | dev_info(&dev->dev, "expanded BAR %d to page size: %pR\n", |
| 315 | i, r); |
| 316 | } |
| 317 | } |
| 318 | } |
| 319 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_IBM, 0x034a, quirk_extend_bar_to_page); |
| 320 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 321 | /* |
| 322 | * S3 868 and 968 chips report region size equal to 32M, but they decode 64M. |
| 323 | * If it's needed, re-allocate the region. |
| 324 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 325 | static void quirk_s3_64M(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 326 | { |
| 327 | struct resource *r = &dev->resource[0]; |
| 328 | |
| 329 | if ((r->start & 0x3ffffff) || r->end != r->start + 0x3ffffff) { |
Bjorn Helgaas | bd064f0 | 2014-02-26 11:25:58 -0700 | [diff] [blame] | 330 | r->flags |= IORESOURCE_UNSET; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | r->start = 0; |
| 332 | r->end = 0x3ffffff; |
| 333 | } |
| 334 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 335 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_868, quirk_s3_64M); |
| 336 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_S3, PCI_DEVICE_ID_S3_968, quirk_s3_64M); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | |
Myron Stowe | 06cf35f | 2015-02-03 16:01:24 -0700 | [diff] [blame] | 338 | static void quirk_io(struct pci_dev *dev, int pos, unsigned size, |
| 339 | const char *name) |
| 340 | { |
| 341 | u32 region; |
| 342 | struct pci_bus_region bus_region; |
| 343 | struct resource *res = dev->resource + pos; |
| 344 | |
| 345 | pci_read_config_dword(dev, PCI_BASE_ADDRESS_0 + (pos << 2), ®ion); |
| 346 | |
| 347 | if (!region) |
| 348 | return; |
| 349 | |
| 350 | res->name = pci_name(dev); |
| 351 | res->flags = region & ~PCI_BASE_ADDRESS_IO_MASK; |
| 352 | res->flags |= |
| 353 | (IORESOURCE_IO | IORESOURCE_PCI_FIXED | IORESOURCE_SIZEALIGN); |
| 354 | region &= ~(size - 1); |
| 355 | |
| 356 | /* Convert from PCI bus to resource space */ |
| 357 | bus_region.start = region; |
| 358 | bus_region.end = region + size - 1; |
| 359 | pcibios_bus_to_resource(dev->bus, res, &bus_region); |
| 360 | |
| 361 | dev_info(&dev->dev, FW_BUG "%s quirk: reg 0x%x: %pR\n", |
| 362 | name, PCI_BASE_ADDRESS_0 + (pos << 2), res); |
| 363 | } |
| 364 | |
Andres Salomon | 73d2eaa | 2010-02-05 01:42:43 -0500 | [diff] [blame] | 365 | /* |
| 366 | * Some CS5536 BIOSes (for example, the Soekris NET5501 board w/ comBIOS |
| 367 | * ver. 1.33 20070103) don't set the correct ISA PCI region header info. |
| 368 | * BAR0 should be 8 bytes; instead, it may be set to something like 8k |
| 369 | * (which conflicts w/ BAR1's memory range). |
Myron Stowe | 06cf35f | 2015-02-03 16:01:24 -0700 | [diff] [blame] | 370 | * |
| 371 | * CS553x's ISA PCI BARs may also be read-only (ref: |
| 372 | * https://bugzilla.kernel.org/show_bug.cgi?id=85991 - Comment #4 forward). |
Andres Salomon | 73d2eaa | 2010-02-05 01:42:43 -0500 | [diff] [blame] | 373 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 374 | static void quirk_cs5536_vsa(struct pci_dev *dev) |
Andres Salomon | 73d2eaa | 2010-02-05 01:42:43 -0500 | [diff] [blame] | 375 | { |
Myron Stowe | 06cf35f | 2015-02-03 16:01:24 -0700 | [diff] [blame] | 376 | static char *name = "CS5536 ISA bridge"; |
| 377 | |
Andres Salomon | 73d2eaa | 2010-02-05 01:42:43 -0500 | [diff] [blame] | 378 | if (pci_resource_len(dev, 0) != 8) { |
Myron Stowe | 06cf35f | 2015-02-03 16:01:24 -0700 | [diff] [blame] | 379 | quirk_io(dev, 0, 8, name); /* SMB */ |
| 380 | quirk_io(dev, 1, 256, name); /* GPIO */ |
| 381 | quirk_io(dev, 2, 64, name); /* MFGPT */ |
| 382 | dev_info(&dev->dev, "%s bug detected (incorrect header); workaround applied\n", |
| 383 | name); |
Andres Salomon | 73d2eaa | 2010-02-05 01:42:43 -0500 | [diff] [blame] | 384 | } |
| 385 | } |
| 386 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CS5536_ISA, quirk_cs5536_vsa); |
| 387 | |
Yinghai Lu | 65195c7 | 2013-04-12 12:44:15 +0000 | [diff] [blame] | 388 | static void quirk_io_region(struct pci_dev *dev, int port, |
| 389 | unsigned size, int nr, const char *name) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | { |
Yinghai Lu | 65195c7 | 2013-04-12 12:44:15 +0000 | [diff] [blame] | 391 | u16 region; |
| 392 | struct pci_bus_region bus_region; |
| 393 | struct resource *res = dev->resource + nr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 394 | |
Yinghai Lu | 65195c7 | 2013-04-12 12:44:15 +0000 | [diff] [blame] | 395 | pci_read_config_word(dev, port, ®ion); |
| 396 | region &= ~(size - 1); |
David S. Miller | 085ae41 | 2005-08-08 13:19:08 -0700 | [diff] [blame] | 397 | |
Yinghai Lu | 65195c7 | 2013-04-12 12:44:15 +0000 | [diff] [blame] | 398 | if (!region) |
| 399 | return; |
David S. Miller | 085ae41 | 2005-08-08 13:19:08 -0700 | [diff] [blame] | 400 | |
Yinghai Lu | 65195c7 | 2013-04-12 12:44:15 +0000 | [diff] [blame] | 401 | res->name = pci_name(dev); |
| 402 | res->flags = IORESOURCE_IO; |
| 403 | |
| 404 | /* Convert from PCI bus to resource space */ |
| 405 | bus_region.start = region; |
| 406 | bus_region.end = region + size - 1; |
Yinghai Lu | fc27985 | 2013-12-09 22:54:40 -0800 | [diff] [blame] | 407 | pcibios_bus_to_resource(dev->bus, res, &bus_region); |
Yinghai Lu | 65195c7 | 2013-04-12 12:44:15 +0000 | [diff] [blame] | 408 | |
| 409 | if (!pci_claim_resource(dev, nr)) |
| 410 | dev_info(&dev->dev, "quirk: %pR claimed by %s\n", res, name); |
| 411 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 412 | |
| 413 | /* |
| 414 | * ATI Northbridge setups MCE the processor if you even |
| 415 | * read somewhere between 0x3b0->0x3bb or read 0x3d3 |
| 416 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 417 | static void quirk_ati_exploding_mce(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 418 | { |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 419 | dev_info(&dev->dev, "ATI Northbridge, reserving I/O ports 0x3b0 to 0x3bb\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 420 | /* Mae rhaid i ni beidio ag edrych ar y lleoliadiau I/O hyn */ |
| 421 | request_region(0x3b0, 0x0C, "RadeonIGP"); |
| 422 | request_region(0x3d3, 0x01, "RadeonIGP"); |
| 423 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 424 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS100, quirk_ati_exploding_mce); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | |
| 426 | /* |
Huang Rui | be6646b | 2014-10-31 11:11:16 +0800 | [diff] [blame] | 427 | * In the AMD NL platform, this device ([1022:7912]) has a class code of |
| 428 | * PCI_CLASS_SERIAL_USB_XHCI (0x0c0330), which means the xhci driver will |
| 429 | * claim it. |
| 430 | * But the dwc3 driver is a more specific driver for this device, and we'd |
| 431 | * prefer to use it instead of xhci. To prevent xhci from claiming the |
| 432 | * device, change the class code to 0x0c03fe, which the PCI r3.0 spec |
| 433 | * defines as "USB device (not host controller)". The dwc3 driver can then |
| 434 | * claim it based on its Vendor and Device ID. |
| 435 | */ |
| 436 | static void quirk_amd_nl_class(struct pci_dev *pdev) |
| 437 | { |
Bjorn Helgaas | cd76d10 | 2015-06-19 15:28:31 -0500 | [diff] [blame] | 438 | u32 class = pdev->class; |
| 439 | |
| 440 | /* Use "USB Device (not host controller)" class */ |
| 441 | pdev->class = (PCI_CLASS_SERIAL_USB << 8) | 0xfe; |
| 442 | dev_info(&pdev->dev, "PCI class overridden (%#08x -> %#08x) so dwc3 driver can claim this instead of xhci\n", |
| 443 | class, pdev->class); |
Huang Rui | be6646b | 2014-10-31 11:11:16 +0800 | [diff] [blame] | 444 | } |
| 445 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_NL_USB, |
| 446 | quirk_amd_nl_class); |
| 447 | |
| 448 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 449 | * Let's make the southbridge information explicit instead |
| 450 | * of having to worry about people probing the ACPI areas, |
| 451 | * for example.. (Yes, it happens, and if you read the wrong |
| 452 | * ACPI register it will put the machine to sleep with no |
| 453 | * way of waking it up again. Bummer). |
| 454 | * |
| 455 | * ALI M7101: Two IO regions pointed to by words at |
| 456 | * 0xE0 (64 bytes of ACPI registers) |
| 457 | * 0xE2 (32 bytes of SMB registers) |
| 458 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 459 | static void quirk_ali7101_acpi(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 460 | { |
Yinghai Lu | 65195c7 | 2013-04-12 12:44:15 +0000 | [diff] [blame] | 461 | quirk_io_region(dev, 0xE0, 64, PCI_BRIDGE_RESOURCES, "ali7101 ACPI"); |
| 462 | quirk_io_region(dev, 0xE2, 32, PCI_BRIDGE_RESOURCES+1, "ali7101 SMB"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 463 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 464 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, quirk_ali7101_acpi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 465 | |
Linus Torvalds | 6693e74 | 2005-10-25 20:40:09 -0700 | [diff] [blame] | 466 | static void piix4_io_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable) |
| 467 | { |
| 468 | u32 devres; |
| 469 | u32 mask, size, base; |
| 470 | |
| 471 | pci_read_config_dword(dev, port, &devres); |
| 472 | if ((devres & enable) != enable) |
| 473 | return; |
| 474 | mask = (devres >> 16) & 15; |
| 475 | base = devres & 0xffff; |
| 476 | size = 16; |
| 477 | for (;;) { |
| 478 | unsigned bit = size >> 1; |
| 479 | if ((bit & mask) == bit) |
| 480 | break; |
| 481 | size = bit; |
| 482 | } |
| 483 | /* |
| 484 | * For now we only print it out. Eventually we'll want to |
| 485 | * reserve it (at least if it's in the 0x1000+ range), but |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 486 | * let's get enough confirmation reports first. |
Linus Torvalds | 6693e74 | 2005-10-25 20:40:09 -0700 | [diff] [blame] | 487 | */ |
| 488 | base &= -size; |
Ryan Desfosses | 227f064 | 2014-04-18 20:13:50 -0400 | [diff] [blame] | 489 | dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, |
| 490 | base + size - 1); |
Linus Torvalds | 6693e74 | 2005-10-25 20:40:09 -0700 | [diff] [blame] | 491 | } |
| 492 | |
| 493 | static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int port, unsigned int enable) |
| 494 | { |
| 495 | u32 devres; |
| 496 | u32 mask, size, base; |
| 497 | |
| 498 | pci_read_config_dword(dev, port, &devres); |
| 499 | if ((devres & enable) != enable) |
| 500 | return; |
| 501 | base = devres & 0xffff0000; |
| 502 | mask = (devres & 0x3f) << 16; |
| 503 | size = 128 << 16; |
| 504 | for (;;) { |
| 505 | unsigned bit = size >> 1; |
| 506 | if ((bit & mask) == bit) |
| 507 | break; |
| 508 | size = bit; |
| 509 | } |
| 510 | /* |
| 511 | * For now we only print it out. Eventually we'll want to |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 512 | * reserve it, but let's get enough confirmation reports first. |
Linus Torvalds | 6693e74 | 2005-10-25 20:40:09 -0700 | [diff] [blame] | 513 | */ |
| 514 | base &= -size; |
Ryan Desfosses | 227f064 | 2014-04-18 20:13:50 -0400 | [diff] [blame] | 515 | dev_info(&dev->dev, "%s MMIO at %04x-%04x\n", name, base, |
| 516 | base + size - 1); |
Linus Torvalds | 6693e74 | 2005-10-25 20:40:09 -0700 | [diff] [blame] | 517 | } |
| 518 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 519 | /* |
| 520 | * PIIX4 ACPI: Two IO regions pointed to by longwords at |
| 521 | * 0x40 (64 bytes of ACPI registers) |
Linus Torvalds | 08db2a7 | 2005-10-30 14:40:07 -0800 | [diff] [blame] | 522 | * 0x90 (16 bytes of SMB registers) |
Linus Torvalds | 6693e74 | 2005-10-25 20:40:09 -0700 | [diff] [blame] | 523 | * and a few strange programmable PIIX4 device resources. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 524 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 525 | static void quirk_piix4_acpi(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 526 | { |
Yinghai Lu | 65195c7 | 2013-04-12 12:44:15 +0000 | [diff] [blame] | 527 | u32 res_a; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 528 | |
Yinghai Lu | 65195c7 | 2013-04-12 12:44:15 +0000 | [diff] [blame] | 529 | quirk_io_region(dev, 0x40, 64, PCI_BRIDGE_RESOURCES, "PIIX4 ACPI"); |
| 530 | quirk_io_region(dev, 0x90, 16, PCI_BRIDGE_RESOURCES+1, "PIIX4 SMB"); |
Linus Torvalds | 6693e74 | 2005-10-25 20:40:09 -0700 | [diff] [blame] | 531 | |
| 532 | /* Device resource A has enables for some of the other ones */ |
| 533 | pci_read_config_dword(dev, 0x5c, &res_a); |
| 534 | |
| 535 | piix4_io_quirk(dev, "PIIX4 devres B", 0x60, 3 << 21); |
| 536 | piix4_io_quirk(dev, "PIIX4 devres C", 0x64, 3 << 21); |
| 537 | |
| 538 | /* Device resource D is just bitfields for static resources */ |
| 539 | |
| 540 | /* Device 12 enabled? */ |
| 541 | if (res_a & (1 << 29)) { |
| 542 | piix4_io_quirk(dev, "PIIX4 devres E", 0x68, 1 << 20); |
| 543 | piix4_mem_quirk(dev, "PIIX4 devres F", 0x6c, 1 << 7); |
| 544 | } |
| 545 | /* Device 13 enabled? */ |
| 546 | if (res_a & (1 << 30)) { |
| 547 | piix4_io_quirk(dev, "PIIX4 devres G", 0x70, 1 << 20); |
| 548 | piix4_mem_quirk(dev, "PIIX4 devres H", 0x74, 1 << 7); |
| 549 | } |
| 550 | piix4_io_quirk(dev, "PIIX4 devres I", 0x78, 1 << 20); |
| 551 | piix4_io_quirk(dev, "PIIX4 devres J", 0x7c, 1 << 20); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 552 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 553 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, quirk_piix4_acpi); |
| 554 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443MX_3, quirk_piix4_acpi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 555 | |
Jiri Slaby | cdb9755 | 2011-02-28 10:45:09 +0100 | [diff] [blame] | 556 | #define ICH_PMBASE 0x40 |
| 557 | #define ICH_ACPI_CNTL 0x44 |
| 558 | #define ICH4_ACPI_EN 0x10 |
| 559 | #define ICH6_ACPI_EN 0x80 |
| 560 | #define ICH4_GPIOBASE 0x58 |
| 561 | #define ICH4_GPIO_CNTL 0x5c |
| 562 | #define ICH4_GPIO_EN 0x10 |
| 563 | #define ICH6_GPIOBASE 0x48 |
| 564 | #define ICH6_GPIO_CNTL 0x4c |
| 565 | #define ICH6_GPIO_EN 0x10 |
| 566 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 567 | /* |
| 568 | * ICH4, ICH4-M, ICH5, ICH5-M ACPI: Three IO regions pointed to by longwords at |
| 569 | * 0x40 (128 bytes of ACPI, GPIO & TCO registers) |
| 570 | * 0x58 (64 bytes of GPIO I/O space) |
| 571 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 572 | static void quirk_ich4_lpc_acpi(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 573 | { |
Jiri Slaby | cdb9755 | 2011-02-28 10:45:09 +0100 | [diff] [blame] | 574 | u8 enable; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 575 | |
Jiri Slaby | 87e3dc3 | 2011-02-28 10:45:10 +0100 | [diff] [blame] | 576 | /* |
| 577 | * The check for PCIBIOS_MIN_IO is to ensure we won't create a conflict |
| 578 | * with low legacy (and fixed) ports. We don't know the decoding |
| 579 | * priority and can't tell whether the legacy device or the one created |
| 580 | * here is really at that address. This happens on boards with broken |
| 581 | * BIOSes. |
| 582 | */ |
| 583 | |
Jiri Slaby | cdb9755 | 2011-02-28 10:45:09 +0100 | [diff] [blame] | 584 | pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable); |
Yinghai Lu | 65195c7 | 2013-04-12 12:44:15 +0000 | [diff] [blame] | 585 | if (enable & ICH4_ACPI_EN) |
| 586 | quirk_io_region(dev, ICH_PMBASE, 128, PCI_BRIDGE_RESOURCES, |
| 587 | "ICH4 ACPI/GPIO/TCO"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 588 | |
Jiri Slaby | cdb9755 | 2011-02-28 10:45:09 +0100 | [diff] [blame] | 589 | pci_read_config_byte(dev, ICH4_GPIO_CNTL, &enable); |
Yinghai Lu | 65195c7 | 2013-04-12 12:44:15 +0000 | [diff] [blame] | 590 | if (enable & ICH4_GPIO_EN) |
| 591 | quirk_io_region(dev, ICH4_GPIOBASE, 64, PCI_BRIDGE_RESOURCES+1, |
| 592 | "ICH4 GPIO"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 593 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 594 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, quirk_ich4_lpc_acpi); |
| 595 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AB_0, quirk_ich4_lpc_acpi); |
| 596 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, quirk_ich4_lpc_acpi); |
| 597 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_10, quirk_ich4_lpc_acpi); |
| 598 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, quirk_ich4_lpc_acpi); |
| 599 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, quirk_ich4_lpc_acpi); |
| 600 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, quirk_ich4_lpc_acpi); |
| 601 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, quirk_ich4_lpc_acpi); |
| 602 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, quirk_ich4_lpc_acpi); |
| 603 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1, quirk_ich4_lpc_acpi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 604 | |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 605 | static void ich6_lpc_acpi_gpio(struct pci_dev *dev) |
R.Marek@sh.cvut.cz | 2cea752 | 2005-09-27 21:54:51 +0000 | [diff] [blame] | 606 | { |
Jiri Slaby | cdb9755 | 2011-02-28 10:45:09 +0100 | [diff] [blame] | 607 | u8 enable; |
R.Marek@sh.cvut.cz | 2cea752 | 2005-09-27 21:54:51 +0000 | [diff] [blame] | 608 | |
Jiri Slaby | cdb9755 | 2011-02-28 10:45:09 +0100 | [diff] [blame] | 609 | pci_read_config_byte(dev, ICH_ACPI_CNTL, &enable); |
Yinghai Lu | 65195c7 | 2013-04-12 12:44:15 +0000 | [diff] [blame] | 610 | if (enable & ICH6_ACPI_EN) |
| 611 | quirk_io_region(dev, ICH_PMBASE, 128, PCI_BRIDGE_RESOURCES, |
| 612 | "ICH6 ACPI/GPIO/TCO"); |
R.Marek@sh.cvut.cz | 2cea752 | 2005-09-27 21:54:51 +0000 | [diff] [blame] | 613 | |
Jiri Slaby | cdb9755 | 2011-02-28 10:45:09 +0100 | [diff] [blame] | 614 | pci_read_config_byte(dev, ICH6_GPIO_CNTL, &enable); |
Yinghai Lu | 65195c7 | 2013-04-12 12:44:15 +0000 | [diff] [blame] | 615 | if (enable & ICH6_GPIO_EN) |
| 616 | quirk_io_region(dev, ICH6_GPIOBASE, 64, PCI_BRIDGE_RESOURCES+1, |
| 617 | "ICH6 GPIO"); |
R.Marek@sh.cvut.cz | 2cea752 | 2005-09-27 21:54:51 +0000 | [diff] [blame] | 618 | } |
Linus Torvalds | 894886e | 2008-12-06 10:10:10 -0800 | [diff] [blame] | 619 | |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 620 | static void ich6_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name, int dynsize) |
Linus Torvalds | 894886e | 2008-12-06 10:10:10 -0800 | [diff] [blame] | 621 | { |
| 622 | u32 val; |
| 623 | u32 size, base; |
| 624 | |
| 625 | pci_read_config_dword(dev, reg, &val); |
| 626 | |
| 627 | /* Enabled? */ |
| 628 | if (!(val & 1)) |
| 629 | return; |
| 630 | base = val & 0xfffc; |
| 631 | if (dynsize) { |
| 632 | /* |
| 633 | * This is not correct. It is 16, 32 or 64 bytes depending on |
| 634 | * register D31:F0:ADh bits 5:4. |
| 635 | * |
| 636 | * But this gets us at least _part_ of it. |
| 637 | */ |
| 638 | size = 16; |
| 639 | } else { |
| 640 | size = 128; |
| 641 | } |
| 642 | base &= ~(size-1); |
| 643 | |
| 644 | /* Just print it out for now. We should reserve it after more debugging */ |
| 645 | dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, base+size-1); |
| 646 | } |
| 647 | |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 648 | static void quirk_ich6_lpc(struct pci_dev *dev) |
Linus Torvalds | 894886e | 2008-12-06 10:10:10 -0800 | [diff] [blame] | 649 | { |
| 650 | /* Shared ACPI/GPIO decode with all ICH6+ */ |
| 651 | ich6_lpc_acpi_gpio(dev); |
| 652 | |
| 653 | /* ICH6-specific generic IO decode */ |
| 654 | ich6_lpc_generic_decode(dev, 0x84, "LPC Generic IO decode 1", 0); |
| 655 | ich6_lpc_generic_decode(dev, 0x88, "LPC Generic IO decode 2", 1); |
| 656 | } |
| 657 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0, quirk_ich6_lpc); |
| 658 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc); |
| 659 | |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 660 | static void ich7_lpc_generic_decode(struct pci_dev *dev, unsigned reg, const char *name) |
Linus Torvalds | 894886e | 2008-12-06 10:10:10 -0800 | [diff] [blame] | 661 | { |
| 662 | u32 val; |
| 663 | u32 mask, base; |
| 664 | |
| 665 | pci_read_config_dword(dev, reg, &val); |
| 666 | |
| 667 | /* Enabled? */ |
| 668 | if (!(val & 1)) |
| 669 | return; |
| 670 | |
| 671 | /* |
| 672 | * IO base in bits 15:2, mask in bits 23:18, both |
| 673 | * are dword-based |
| 674 | */ |
| 675 | base = val & 0xfffc; |
| 676 | mask = (val >> 16) & 0xfc; |
| 677 | mask |= 3; |
| 678 | |
| 679 | /* Just print it out for now. We should reserve it after more debugging */ |
| 680 | dev_info(&dev->dev, "%s PIO at %04x (mask %04x)\n", name, base, mask); |
| 681 | } |
| 682 | |
| 683 | /* ICH7-10 has the same common LPC generic IO decode registers */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 684 | static void quirk_ich7_lpc(struct pci_dev *dev) |
Linus Torvalds | 894886e | 2008-12-06 10:10:10 -0800 | [diff] [blame] | 685 | { |
Jean Delvare | 5d9c0a7 | 2011-04-15 10:03:53 +0200 | [diff] [blame] | 686 | /* We share the common ACPI/GPIO decode with ICH6 */ |
Linus Torvalds | 894886e | 2008-12-06 10:10:10 -0800 | [diff] [blame] | 687 | ich6_lpc_acpi_gpio(dev); |
| 688 | |
| 689 | /* And have 4 ICH7+ generic decodes */ |
| 690 | ich7_lpc_generic_decode(dev, 0x84, "ICH7 LPC Generic IO decode 1"); |
| 691 | ich7_lpc_generic_decode(dev, 0x88, "ICH7 LPC Generic IO decode 2"); |
| 692 | ich7_lpc_generic_decode(dev, 0x8c, "ICH7 LPC Generic IO decode 3"); |
| 693 | ich7_lpc_generic_decode(dev, 0x90, "ICH7 LPC Generic IO decode 4"); |
| 694 | } |
| 695 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0, quirk_ich7_lpc); |
| 696 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1, quirk_ich7_lpc); |
| 697 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_31, quirk_ich7_lpc); |
| 698 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_0, quirk_ich7_lpc); |
| 699 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_2, quirk_ich7_lpc); |
| 700 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_3, quirk_ich7_lpc); |
| 701 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_1, quirk_ich7_lpc); |
| 702 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_4, quirk_ich7_lpc); |
| 703 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_2, quirk_ich7_lpc); |
| 704 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_4, quirk_ich7_lpc); |
| 705 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_7, quirk_ich7_lpc); |
| 706 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH9_8, quirk_ich7_lpc); |
| 707 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH10_1, quirk_ich7_lpc); |
R.Marek@sh.cvut.cz | 2cea752 | 2005-09-27 21:54:51 +0000 | [diff] [blame] | 708 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 709 | /* |
| 710 | * VIA ACPI: One IO region pointed to by longword at |
| 711 | * 0x48 or 0x20 (256 bytes of ACPI registers) |
| 712 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 713 | static void quirk_vt82c586_acpi(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 714 | { |
Yinghai Lu | 65195c7 | 2013-04-12 12:44:15 +0000 | [diff] [blame] | 715 | if (dev->revision & 0x10) |
| 716 | quirk_io_region(dev, 0x48, 256, PCI_BRIDGE_RESOURCES, |
| 717 | "vt82c586 ACPI"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 718 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 719 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_vt82c586_acpi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 720 | |
| 721 | /* |
| 722 | * VIA VT82C686 ACPI: Three IO region pointed to by (long)words at |
| 723 | * 0x48 (256 bytes of ACPI registers) |
| 724 | * 0x70 (128 bytes of hardware monitoring register) |
| 725 | * 0x90 (16 bytes of SMB registers) |
| 726 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 727 | static void quirk_vt82c686_acpi(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 728 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 729 | quirk_vt82c586_acpi(dev); |
| 730 | |
Yinghai Lu | 65195c7 | 2013-04-12 12:44:15 +0000 | [diff] [blame] | 731 | quirk_io_region(dev, 0x70, 128, PCI_BRIDGE_RESOURCES+1, |
| 732 | "vt82c686 HW-mon"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 733 | |
Yinghai Lu | 65195c7 | 2013-04-12 12:44:15 +0000 | [diff] [blame] | 734 | quirk_io_region(dev, 0x90, 16, PCI_BRIDGE_RESOURCES+2, "vt82c686 SMB"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 735 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 736 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_vt82c686_acpi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 737 | |
Ivan Kokshaysky | 6d85f29 | 2005-08-08 12:55:54 +0400 | [diff] [blame] | 738 | /* |
| 739 | * VIA VT8235 ISA Bridge: Two IO regions pointed to by words at |
| 740 | * 0x88 (128 bytes of power management registers) |
| 741 | * 0xd0 (16 bytes of SMB registers) |
| 742 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 743 | static void quirk_vt8235_acpi(struct pci_dev *dev) |
Ivan Kokshaysky | 6d85f29 | 2005-08-08 12:55:54 +0400 | [diff] [blame] | 744 | { |
Yinghai Lu | 65195c7 | 2013-04-12 12:44:15 +0000 | [diff] [blame] | 745 | quirk_io_region(dev, 0x88, 128, PCI_BRIDGE_RESOURCES, "vt8235 PM"); |
| 746 | quirk_io_region(dev, 0xd0, 16, PCI_BRIDGE_RESOURCES+1, "vt8235 SMB"); |
Ivan Kokshaysky | 6d85f29 | 2005-08-08 12:55:54 +0400 | [diff] [blame] | 747 | } |
| 748 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_vt8235_acpi); |
| 749 | |
Gabe Black | 1f56f4a | 2009-10-06 09:19:45 -0500 | [diff] [blame] | 750 | /* |
| 751 | * TI XIO2000a PCIe-PCI Bridge erroneously reports it supports fast back-to-back: |
| 752 | * Disable fast back-to-back on the secondary bus segment |
| 753 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 754 | static void quirk_xio2000a(struct pci_dev *dev) |
Gabe Black | 1f56f4a | 2009-10-06 09:19:45 -0500 | [diff] [blame] | 755 | { |
| 756 | struct pci_dev *pdev; |
| 757 | u16 command; |
| 758 | |
Ryan Desfosses | 227f064 | 2014-04-18 20:13:50 -0400 | [diff] [blame] | 759 | dev_warn(&dev->dev, "TI XIO2000a quirk detected; secondary bus fast back-to-back transfers disabled\n"); |
Gabe Black | 1f56f4a | 2009-10-06 09:19:45 -0500 | [diff] [blame] | 760 | list_for_each_entry(pdev, &dev->subordinate->devices, bus_list) { |
| 761 | pci_read_config_word(pdev, PCI_COMMAND, &command); |
| 762 | if (command & PCI_COMMAND_FAST_BACK) |
| 763 | pci_write_config_word(pdev, PCI_COMMAND, command & ~PCI_COMMAND_FAST_BACK); |
| 764 | } |
| 765 | } |
| 766 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XIO2000A, |
| 767 | quirk_xio2000a); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 768 | |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 769 | #ifdef CONFIG_X86_IO_APIC |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 770 | |
| 771 | #include <asm/io_apic.h> |
| 772 | |
| 773 | /* |
| 774 | * VIA 686A/B: If an IO-APIC is active, we need to route all on-chip |
| 775 | * devices to the external APIC. |
| 776 | * |
| 777 | * TODO: When we have device-specific interrupt routers, |
| 778 | * this code will go away from quirks. |
| 779 | */ |
Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 780 | static void quirk_via_ioapic(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 781 | { |
| 782 | u8 tmp; |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 783 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 784 | if (nr_ioapics < 1) |
| 785 | tmp = 0; /* nothing routed to external APIC */ |
| 786 | else |
| 787 | tmp = 0x1f; /* all known bits (4-0) routed to external APIC */ |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 788 | |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 789 | dev_info(&dev->dev, "%sbling VIA external APIC routing\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 790 | tmp == 0 ? "Disa" : "Ena"); |
| 791 | |
| 792 | /* Offset 0x58: External APIC IRQ output control */ |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 793 | pci_write_config_byte(dev, 0x58, tmp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 794 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 795 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic); |
Rafael J. Wysocki | e1a2a51 | 2008-05-15 21:51:31 +0200 | [diff] [blame] | 796 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_ioapic); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 797 | |
| 798 | /* |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 799 | * VIA 8237: Some BIOSes don't set the 'Bypass APIC De-Assert Message' Bit. |
Karsten Wiese | a174091 | 2005-09-03 15:56:33 -0700 | [diff] [blame] | 800 | * This leads to doubled level interrupt rates. |
| 801 | * Set this bit to get rid of cycle wastage. |
| 802 | * Otherwise uncritical. |
| 803 | */ |
Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 804 | static void quirk_via_vt8237_bypass_apic_deassert(struct pci_dev *dev) |
Karsten Wiese | a174091 | 2005-09-03 15:56:33 -0700 | [diff] [blame] | 805 | { |
| 806 | u8 misc_control2; |
| 807 | #define BYPASS_APIC_DEASSERT 8 |
| 808 | |
| 809 | pci_read_config_byte(dev, 0x5B, &misc_control2); |
| 810 | if (!(misc_control2 & BYPASS_APIC_DEASSERT)) { |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 811 | dev_info(&dev->dev, "Bypassing VIA 8237 APIC De-Assert Message\n"); |
Karsten Wiese | a174091 | 2005-09-03 15:56:33 -0700 | [diff] [blame] | 812 | pci_write_config_byte(dev, 0x5B, misc_control2|BYPASS_APIC_DEASSERT); |
| 813 | } |
| 814 | } |
| 815 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert); |
Rafael J. Wysocki | e1a2a51 | 2008-05-15 21:51:31 +0200 | [diff] [blame] | 816 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_vt8237_bypass_apic_deassert); |
Karsten Wiese | a174091 | 2005-09-03 15:56:33 -0700 | [diff] [blame] | 817 | |
| 818 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 819 | * The AMD io apic can hang the box when an apic irq is masked. |
| 820 | * We check all revs >= B0 (yet not in the pre production!) as the bug |
| 821 | * is currently marked NoFix |
| 822 | * |
| 823 | * We have multiple reports of hangs with this chipset that went away with |
Alan Cox | 236561e | 2006-09-30 23:27:03 -0700 | [diff] [blame] | 824 | * noapic specified. For the moment we assume it's the erratum. We may be wrong |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 825 | * of course. However the advice is demonstrably good even if so.. |
| 826 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 827 | static void quirk_amd_ioapic(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 828 | { |
Auke Kok | 44c1013 | 2007-06-08 15:46:36 -0700 | [diff] [blame] | 829 | if (dev->revision >= 0x02) { |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 830 | dev_warn(&dev->dev, "I/O APIC: AMD Erratum #22 may be present. In the event of instability try\n"); |
| 831 | dev_warn(&dev->dev, " : booting with the \"noapic\" option\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 832 | } |
| 833 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 834 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_VIPER_7410, quirk_amd_ioapic); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 835 | #endif /* CONFIG_X86_IO_APIC */ |
| 836 | |
Peter Oruba | d556ad4 | 2007-05-15 13:59:13 +0200 | [diff] [blame] | 837 | /* |
| 838 | * Some settings of MMRBC can lead to data corruption so block changes. |
| 839 | * See AMD 8131 HyperTransport PCI-X Tunnel Revision Guide |
| 840 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 841 | static void quirk_amd_8131_mmrbc(struct pci_dev *dev) |
Peter Oruba | d556ad4 | 2007-05-15 13:59:13 +0200 | [diff] [blame] | 842 | { |
Auke Kok | aa288d4 | 2007-08-27 16:17:47 -0700 | [diff] [blame] | 843 | if (dev->subordinate && dev->revision <= 0x12) { |
Ryan Desfosses | 227f064 | 2014-04-18 20:13:50 -0400 | [diff] [blame] | 844 | dev_info(&dev->dev, "AMD8131 rev %x detected; disabling PCI-X MMRBC\n", |
| 845 | dev->revision); |
Peter Oruba | d556ad4 | 2007-05-15 13:59:13 +0200 | [diff] [blame] | 846 | dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MMRBC; |
| 847 | } |
| 848 | } |
| 849 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_amd_8131_mmrbc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 850 | |
| 851 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 852 | * FIXME: it is questionable that quirk_via_acpi |
| 853 | * is needed. It shows up as an ISA bridge, and does not |
| 854 | * support the PCI_INTERRUPT_LINE register at all. Therefore |
| 855 | * it seems like setting the pci_dev's 'irq' to the |
| 856 | * value of the ACPI SCI interrupt is only done for convenience. |
| 857 | * -jgarzik |
| 858 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 859 | static void quirk_via_acpi(struct pci_dev *d) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 860 | { |
| 861 | /* |
| 862 | * VIA ACPI device: SCI IRQ line in PCI config byte 0x42 |
| 863 | */ |
| 864 | u8 irq; |
| 865 | pci_read_config_byte(d, 0x42, &irq); |
| 866 | irq &= 0xf; |
| 867 | if (irq && (irq != 2)) |
| 868 | d->irq = irq; |
| 869 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 870 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_via_acpi); |
| 871 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_via_acpi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 872 | |
Daniel Drake | 09d6029 | 2006-09-25 16:52:19 -0700 | [diff] [blame] | 873 | |
| 874 | /* |
Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 875 | * VIA bridges which have VLink |
Daniel Drake | 09d6029 | 2006-09-25 16:52:19 -0700 | [diff] [blame] | 876 | */ |
Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 877 | |
Jean Delvare | c06bb5d | 2007-01-30 14:36:09 -0800 | [diff] [blame] | 878 | static int via_vlink_dev_lo = -1, via_vlink_dev_hi = 18; |
| 879 | |
| 880 | static void quirk_via_bridge(struct pci_dev *dev) |
| 881 | { |
| 882 | /* See what bridge we have and find the device ranges */ |
| 883 | switch (dev->device) { |
| 884 | case PCI_DEVICE_ID_VIA_82C686: |
Jean Delvare | cb7468e | 2007-01-31 23:48:12 -0800 | [diff] [blame] | 885 | /* The VT82C686 is special, it attaches to PCI and can have |
| 886 | any device number. All its subdevices are functions of |
| 887 | that single device. */ |
| 888 | via_vlink_dev_lo = PCI_SLOT(dev->devfn); |
| 889 | via_vlink_dev_hi = PCI_SLOT(dev->devfn); |
Jean Delvare | c06bb5d | 2007-01-30 14:36:09 -0800 | [diff] [blame] | 890 | break; |
| 891 | case PCI_DEVICE_ID_VIA_8237: |
| 892 | case PCI_DEVICE_ID_VIA_8237A: |
| 893 | via_vlink_dev_lo = 15; |
| 894 | break; |
| 895 | case PCI_DEVICE_ID_VIA_8235: |
| 896 | via_vlink_dev_lo = 16; |
| 897 | break; |
| 898 | case PCI_DEVICE_ID_VIA_8231: |
| 899 | case PCI_DEVICE_ID_VIA_8233_0: |
| 900 | case PCI_DEVICE_ID_VIA_8233A: |
| 901 | case PCI_DEVICE_ID_VIA_8233C_0: |
| 902 | via_vlink_dev_lo = 17; |
| 903 | break; |
| 904 | } |
| 905 | } |
| 906 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_bridge); |
| 907 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, quirk_via_bridge); |
| 908 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_0, quirk_via_bridge); |
| 909 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233A, quirk_via_bridge); |
| 910 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233C_0, quirk_via_bridge); |
| 911 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_via_bridge); |
| 912 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_bridge); |
| 913 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237A, quirk_via_bridge); |
Daniel Drake | 09d6029 | 2006-09-25 16:52:19 -0700 | [diff] [blame] | 914 | |
Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 915 | /** |
| 916 | * quirk_via_vlink - VIA VLink IRQ number update |
| 917 | * @dev: PCI device |
| 918 | * |
| 919 | * If the device we are dealing with is on a PIC IRQ we need to |
| 920 | * ensure that the IRQ line register which usually is not relevant |
| 921 | * for PCI cards, is actually written so that interrupts get sent |
Jean Delvare | c06bb5d | 2007-01-30 14:36:09 -0800 | [diff] [blame] | 922 | * to the right place. |
| 923 | * We only do this on systems where a VIA south bridge was detected, |
| 924 | * and only for VIA devices on the motherboard (see quirk_via_bridge |
| 925 | * above). |
Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 926 | */ |
| 927 | |
| 928 | static void quirk_via_vlink(struct pci_dev *dev) |
Len Brown | 25be5e6 | 2005-05-27 04:21:50 -0400 | [diff] [blame] | 929 | { |
| 930 | u8 irq, new_irq; |
| 931 | |
Jean Delvare | c06bb5d | 2007-01-30 14:36:09 -0800 | [diff] [blame] | 932 | /* Check if we have VLink at all */ |
| 933 | if (via_vlink_dev_lo == -1) |
Daniel Drake | 09d6029 | 2006-09-25 16:52:19 -0700 | [diff] [blame] | 934 | return; |
| 935 | |
| 936 | new_irq = dev->irq; |
| 937 | |
| 938 | /* Don't quirk interrupts outside the legacy IRQ range */ |
| 939 | if (!new_irq || new_irq > 15) |
| 940 | return; |
| 941 | |
Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 942 | /* Internal device ? */ |
Jean Delvare | c06bb5d | 2007-01-30 14:36:09 -0800 | [diff] [blame] | 943 | if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) > via_vlink_dev_hi || |
| 944 | PCI_SLOT(dev->devfn) < via_vlink_dev_lo) |
Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 945 | return; |
| 946 | |
| 947 | /* This is an internal VLink device on a PIC interrupt. The BIOS |
| 948 | ought to have set this but may not have, so we redo it */ |
| 949 | |
Len Brown | 25be5e6 | 2005-05-27 04:21:50 -0400 | [diff] [blame] | 950 | pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq); |
| 951 | if (new_irq != irq) { |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 952 | dev_info(&dev->dev, "VIA VLink IRQ fixup, from %d to %d\n", |
| 953 | irq, new_irq); |
Len Brown | 25be5e6 | 2005-05-27 04:21:50 -0400 | [diff] [blame] | 954 | udelay(15); /* unknown if delay really needed */ |
| 955 | pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq); |
| 956 | } |
| 957 | } |
Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 958 | DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_vlink); |
Len Brown | 25be5e6 | 2005-05-27 04:21:50 -0400 | [diff] [blame] | 959 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 960 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 961 | * VIA VT82C598 has its device ID settable and many BIOSes |
| 962 | * set it to the ID of VT82C597 for backward compatibility. |
| 963 | * We need to switch it off to be able to recognize the real |
| 964 | * type of the chip. |
| 965 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 966 | static void quirk_vt82c598_id(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 967 | { |
| 968 | pci_write_config_byte(dev, 0xfc, 0); |
| 969 | pci_read_config_word(dev, PCI_DEVICE_ID, &dev->device); |
| 970 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 971 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_vt82c598_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 972 | |
| 973 | /* |
| 974 | * CardBus controllers have a legacy base address that enables them |
| 975 | * to respond as i82365 pcmcia controllers. We don't want them to |
| 976 | * do this even if the Linux CardBus driver is not loaded, because |
| 977 | * the Linux i82365 driver does not (and should not) handle CardBus. |
| 978 | */ |
Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 979 | static void quirk_cardbus_legacy(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 980 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 981 | pci_write_config_dword(dev, PCI_CB_LEGACY_MODE_BASE, 0); |
| 982 | } |
Yinghai Lu | ae9de56 | 2012-02-23 23:46:54 -0800 | [diff] [blame] | 983 | DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_ANY_ID, PCI_ANY_ID, |
| 984 | PCI_CLASS_BRIDGE_CARDBUS, 8, quirk_cardbus_legacy); |
| 985 | DECLARE_PCI_FIXUP_CLASS_RESUME_EARLY(PCI_ANY_ID, PCI_ANY_ID, |
| 986 | PCI_CLASS_BRIDGE_CARDBUS, 8, quirk_cardbus_legacy); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 987 | |
| 988 | /* |
| 989 | * Following the PCI ordering rules is optional on the AMD762. I'm not |
| 990 | * sure what the designers were smoking but let's not inhale... |
| 991 | * |
| 992 | * To be fair to AMD, it follows the spec by default, its BIOS people |
| 993 | * who turn it off! |
| 994 | */ |
Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 995 | static void quirk_amd_ordering(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 996 | { |
| 997 | u32 pcic; |
| 998 | pci_read_config_dword(dev, 0x4C, &pcic); |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 999 | if ((pcic & 6) != 6) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1000 | pcic |= 6; |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 1001 | dev_warn(&dev->dev, "BIOS failed to enable PCI standards compliance; fixing this error\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1002 | pci_write_config_dword(dev, 0x4C, pcic); |
| 1003 | pci_read_config_dword(dev, 0x84, &pcic); |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 1004 | pcic |= (1 << 23); /* Required in this mode */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1005 | pci_write_config_dword(dev, 0x84, pcic); |
| 1006 | } |
| 1007 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 1008 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering); |
Rafael J. Wysocki | e1a2a51 | 2008-05-15 21:51:31 +0200 | [diff] [blame] | 1009 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C, quirk_amd_ordering); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1010 | |
| 1011 | /* |
| 1012 | * DreamWorks provided workaround for Dunord I-3000 problem |
| 1013 | * |
| 1014 | * This card decodes and responds to addresses not apparently |
| 1015 | * assigned to it. We force a larger allocation to ensure that |
| 1016 | * nothing gets put too close to it. |
| 1017 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 1018 | static void quirk_dunord(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1019 | { |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 1020 | struct resource *r = &dev->resource[1]; |
Bjorn Helgaas | bd064f0 | 2014-02-26 11:25:58 -0700 | [diff] [blame] | 1021 | |
| 1022 | r->flags |= IORESOURCE_UNSET; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1023 | r->start = 0; |
| 1024 | r->end = 0xffffff; |
| 1025 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 1026 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_DUNORD, PCI_DEVICE_ID_DUNORD_I3000, quirk_dunord); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1027 | |
| 1028 | /* |
| 1029 | * i82380FB mobile docking controller: its PCI-to-PCI bridge |
| 1030 | * is subtractive decoding (transparent), and does indicate this |
| 1031 | * in the ProgIf. Unfortunately, the ProgIf value is wrong - 0x80 |
| 1032 | * instead of 0x01. |
| 1033 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 1034 | static void quirk_transparent_bridge(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1035 | { |
| 1036 | dev->transparent = 1; |
| 1037 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 1038 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82380FB, quirk_transparent_bridge); |
| 1039 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA, 0x605, quirk_transparent_bridge); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1040 | |
| 1041 | /* |
| 1042 | * Common misconfiguration of the MediaGX/Geode PCI master that will |
| 1043 | * reduce PCI bandwidth from 70MB/s to 25MB/s. See the GXM/GXLV/GX1 |
Justin P. Mattock | 631dd1a | 2010-10-18 11:03:14 +0200 | [diff] [blame] | 1044 | * datasheets found at http://www.national.com/analog for info on what |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1045 | * these bits do. <christer@weinigel.se> |
| 1046 | */ |
Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 1047 | static void quirk_mediagx_master(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1048 | { |
| 1049 | u8 reg; |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 1050 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1051 | pci_read_config_byte(dev, 0x41, ®); |
| 1052 | if (reg & 2) { |
| 1053 | reg &= ~2; |
Ryan Desfosses | 227f064 | 2014-04-18 20:13:50 -0400 | [diff] [blame] | 1054 | dev_info(&dev->dev, "Fixup for MediaGX/Geode Slave Disconnect Boundary (0x41=0x%02x)\n", |
| 1055 | reg); |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 1056 | pci_write_config_byte(dev, 0x41, reg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1057 | } |
| 1058 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 1059 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master); |
| 1060 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1061 | |
| 1062 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1063 | * Ensure C0 rev restreaming is off. This is normally done by |
| 1064 | * the BIOS but in the odd case it is not the results are corruption |
| 1065 | * hence the presence of a Linux check |
| 1066 | */ |
Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 1067 | static void quirk_disable_pxb(struct pci_dev *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1068 | { |
| 1069 | u16 config; |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 1070 | |
Auke Kok | 44c1013 | 2007-06-08 15:46:36 -0700 | [diff] [blame] | 1071 | if (pdev->revision != 0x04) /* Only C0 requires this */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1072 | return; |
| 1073 | pci_read_config_word(pdev, 0x40, &config); |
| 1074 | if (config & (1<<6)) { |
| 1075 | config &= ~(1<<6); |
| 1076 | pci_write_config_word(pdev, 0x40, config); |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 1077 | dev_info(&pdev->dev, "C0 revision 450NX. Disabling PCI restreaming\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1078 | } |
| 1079 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 1080 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb); |
Rafael J. Wysocki | e1a2a51 | 2008-05-15 21:51:31 +0200 | [diff] [blame] | 1081 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, quirk_disable_pxb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1082 | |
Myron Stowe | 25e742b | 2012-07-09 15:36:14 -0600 | [diff] [blame] | 1083 | static void quirk_amd_ide_mode(struct pci_dev *pdev) |
Conke Hu | ab17443 | 2006-12-19 13:11:37 -0800 | [diff] [blame] | 1084 | { |
Shane Huang | 5deab53 | 2009-10-13 11:14:00 +0800 | [diff] [blame] | 1085 | /* set SBX00/Hudson-2 SATA in IDE mode to AHCI mode */ |
Crane Cai | 05a7d22 | 2008-02-02 13:56:56 +0800 | [diff] [blame] | 1086 | u8 tmp; |
Conke Hu | ab17443 | 2006-12-19 13:11:37 -0800 | [diff] [blame] | 1087 | |
Crane Cai | 05a7d22 | 2008-02-02 13:56:56 +0800 | [diff] [blame] | 1088 | pci_read_config_byte(pdev, PCI_CLASS_DEVICE, &tmp); |
| 1089 | if (tmp == 0x01) { |
Conke Hu | ab17443 | 2006-12-19 13:11:37 -0800 | [diff] [blame] | 1090 | pci_read_config_byte(pdev, 0x40, &tmp); |
| 1091 | pci_write_config_byte(pdev, 0x40, tmp|1); |
| 1092 | pci_write_config_byte(pdev, 0x9, 1); |
| 1093 | pci_write_config_byte(pdev, 0xa, 6); |
| 1094 | pci_write_config_byte(pdev, 0x40, tmp); |
| 1095 | |
Conke Hu | c9f8947 | 2007-01-09 05:32:51 -0500 | [diff] [blame] | 1096 | pdev->class = PCI_CLASS_STORAGE_SATA_AHCI; |
Crane Cai | 05a7d22 | 2008-02-02 13:56:56 +0800 | [diff] [blame] | 1097 | dev_info(&pdev->dev, "set SATA to AHCI mode\n"); |
Conke Hu | ab17443 | 2006-12-19 13:11:37 -0800 | [diff] [blame] | 1098 | } |
| 1099 | } |
Crane Cai | 05a7d22 | 2008-02-02 13:56:56 +0800 | [diff] [blame] | 1100 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode); |
Rafael J. Wysocki | e1a2a51 | 2008-05-15 21:51:31 +0200 | [diff] [blame] | 1101 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_amd_ide_mode); |
Crane Cai | 05a7d22 | 2008-02-02 13:56:56 +0800 | [diff] [blame] | 1102 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode); |
Rafael J. Wysocki | e1a2a51 | 2008-05-15 21:51:31 +0200 | [diff] [blame] | 1103 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP700_SATA, quirk_amd_ide_mode); |
Shane Huang | 5deab53 | 2009-10-13 11:14:00 +0800 | [diff] [blame] | 1104 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE, quirk_amd_ide_mode); |
| 1105 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_HUDSON2_SATA_IDE, quirk_amd_ide_mode); |
Shane Huang | fafe5c3d8 | 2013-06-03 18:24:10 +0800 | [diff] [blame] | 1106 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, 0x7900, quirk_amd_ide_mode); |
| 1107 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, 0x7900, quirk_amd_ide_mode); |
Conke Hu | ab17443 | 2006-12-19 13:11:37 -0800 | [diff] [blame] | 1108 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1109 | /* |
| 1110 | * Serverworks CSB5 IDE does not fully support native mode |
| 1111 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 1112 | static void quirk_svwks_csb5ide(struct pci_dev *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1113 | { |
| 1114 | u8 prog; |
| 1115 | pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog); |
| 1116 | if (prog & 5) { |
| 1117 | prog &= ~5; |
| 1118 | pdev->class &= ~5; |
| 1119 | pci_write_config_byte(pdev, PCI_CLASS_PROG, prog); |
Alan Cox | 368c73d | 2006-10-04 00:41:26 +0100 | [diff] [blame] | 1120 | /* PCI layer will sort out resources */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1121 | } |
| 1122 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 1123 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE, quirk_svwks_csb5ide); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1124 | |
| 1125 | /* |
| 1126 | * Intel 82801CAM ICH3-M datasheet says IDE modes must be the same |
| 1127 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 1128 | static void quirk_ide_samemode(struct pci_dev *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1129 | { |
| 1130 | u8 prog; |
| 1131 | |
| 1132 | pci_read_config_byte(pdev, PCI_CLASS_PROG, &prog); |
| 1133 | |
| 1134 | if (((prog & 1) && !(prog & 4)) || ((prog & 4) && !(prog & 1))) { |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 1135 | dev_info(&pdev->dev, "IDE mode mismatch; forcing legacy mode\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1136 | prog &= ~5; |
| 1137 | pdev->class &= ~5; |
| 1138 | pci_write_config_byte(pdev, PCI_CLASS_PROG, prog); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1139 | } |
| 1140 | } |
Alan Cox | 368c73d | 2006-10-04 00:41:26 +0100 | [diff] [blame] | 1141 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, quirk_ide_samemode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1142 | |
Alan Cox | 979b179 | 2008-07-24 17:18:38 +0100 | [diff] [blame] | 1143 | /* |
| 1144 | * Some ATA devices break if put into D3 |
| 1145 | */ |
| 1146 | |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 1147 | static void quirk_no_ata_d3(struct pci_dev *pdev) |
Alan Cox | 979b179 | 2008-07-24 17:18:38 +0100 | [diff] [blame] | 1148 | { |
Yinghai Lu | faa738b | 2012-02-23 23:46:55 -0800 | [diff] [blame] | 1149 | pdev->dev_flags |= PCI_DEV_FLAGS_NO_D3; |
Alan Cox | 979b179 | 2008-07-24 17:18:38 +0100 | [diff] [blame] | 1150 | } |
Yinghai Lu | faa738b | 2012-02-23 23:46:55 -0800 | [diff] [blame] | 1151 | /* Quirk the legacy ATA devices only. The AHCI ones are ok */ |
| 1152 | DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_SERVERWORKS, PCI_ANY_ID, |
| 1153 | PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3); |
| 1154 | DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_ATI, PCI_ANY_ID, |
| 1155 | PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3); |
Alan Cox | 7a661c6 | 2009-06-24 16:02:27 +0100 | [diff] [blame] | 1156 | /* ALi loses some register settings that we cannot then restore */ |
Yinghai Lu | faa738b | 2012-02-23 23:46:55 -0800 | [diff] [blame] | 1157 | DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID, |
| 1158 | PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3); |
Alan Cox | 7a661c6 | 2009-06-24 16:02:27 +0100 | [diff] [blame] | 1159 | /* VIA comes back fine but we need to keep it alive or ACPI GTM failures |
| 1160 | occur when mode detecting */ |
Yinghai Lu | faa738b | 2012-02-23 23:46:55 -0800 | [diff] [blame] | 1161 | DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_VIA, PCI_ANY_ID, |
| 1162 | PCI_CLASS_STORAGE_IDE, 8, quirk_no_ata_d3); |
Alan Cox | 979b179 | 2008-07-24 17:18:38 +0100 | [diff] [blame] | 1163 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1164 | /* This was originally an Alpha specific thing, but it really fits here. |
| 1165 | * The i82375 PCI/EISA bridge appears as non-classified. Fix that. |
| 1166 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 1167 | static void quirk_eisa_bridge(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1168 | { |
| 1169 | dev->class = PCI_CLASS_BRIDGE_EISA << 8; |
| 1170 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 1171 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_eisa_bridge); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1172 | |
Johannes Goecke | 7daa0c4 | 2006-04-20 02:43:17 -0700 | [diff] [blame] | 1173 | |
| 1174 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1175 | * On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge |
| 1176 | * is not activated. The myth is that Asus said that they do not want the |
| 1177 | * users to be irritated by just another PCI Device in the Win98 device |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 1178 | * manager. (see the file prog/hotplug/README.p4b in the lm_sensors |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1179 | * package 2.7.0 for details) |
| 1180 | * |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 1181 | * The SMBus PCI Device can be activated by setting a bit in the ICH LPC |
| 1182 | * bridge. Unfortunately, this device has no subvendor/subdevice ID. So it |
gw.kernel@tnode.com | d7698ed | 2007-08-23 21:22:04 +0200 | [diff] [blame] | 1183 | * becomes necessary to do this tweak in two steps -- the chosen trigger |
| 1184 | * is either the Host bridge (preferred) or on-board VGA controller. |
Jean Delvare | 9208ee8 | 2007-03-24 16:56:44 +0100 | [diff] [blame] | 1185 | * |
| 1186 | * Note that we used to unhide the SMBus that way on Toshiba laptops |
| 1187 | * (Satellite A40 and Tecra M2) but then found that the thermal management |
| 1188 | * was done by SMM code, which could cause unsynchronized concurrent |
| 1189 | * accesses to the SMBus registers, with potentially bad effects. Thus you |
| 1190 | * should be very careful when adding new entries: if SMM is accessing the |
| 1191 | * Intel SMBus, this is a very good reason to leave it hidden. |
Jean Delvare | a99acc8 | 2008-03-28 14:16:04 -0700 | [diff] [blame] | 1192 | * |
| 1193 | * Likewise, many recent laptops use ACPI for thermal management. If the |
| 1194 | * ACPI DSDT code accesses the SMBus, then Linux should not access it |
| 1195 | * natively, and keeping the SMBus hidden is the right thing to do. If you |
| 1196 | * are about to add an entry in the table below, please first disassemble |
| 1197 | * the DSDT and double-check that there is no code accessing the SMBus. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1198 | */ |
Vivek Goyal | 9d24a81 | 2007-01-11 01:52:44 +0100 | [diff] [blame] | 1199 | static int asus_hides_smbus; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1200 | |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 1201 | static void asus_hides_smbus_hostbridge(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1202 | { |
| 1203 | if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) { |
| 1204 | if (dev->device == PCI_DEVICE_ID_INTEL_82845_HB) |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 1205 | switch (dev->subsystem_device) { |
Jean Delvare | a00db37 | 2005-06-29 17:04:06 +0200 | [diff] [blame] | 1206 | case 0x8025: /* P4B-LX */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1207 | case 0x8070: /* P4B */ |
| 1208 | case 0x8088: /* P4B533 */ |
| 1209 | case 0x1626: /* L3C notebook */ |
| 1210 | asus_hides_smbus = 1; |
| 1211 | } |
Jean Delvare | 2f2d39d | 2007-01-05 11:23:15 +0100 | [diff] [blame] | 1212 | else if (dev->device == PCI_DEVICE_ID_INTEL_82845G_HB) |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 1213 | switch (dev->subsystem_device) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1214 | case 0x80b1: /* P4GE-V */ |
| 1215 | case 0x80b2: /* P4PE */ |
| 1216 | case 0x8093: /* P4B533-V */ |
| 1217 | asus_hides_smbus = 1; |
| 1218 | } |
Jean Delvare | 2f2d39d | 2007-01-05 11:23:15 +0100 | [diff] [blame] | 1219 | else if (dev->device == PCI_DEVICE_ID_INTEL_82850_HB) |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 1220 | switch (dev->subsystem_device) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1221 | case 0x8030: /* P4T533 */ |
| 1222 | asus_hides_smbus = 1; |
| 1223 | } |
Jean Delvare | 2f2d39d | 2007-01-05 11:23:15 +0100 | [diff] [blame] | 1224 | else if (dev->device == PCI_DEVICE_ID_INTEL_7205_0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1225 | switch (dev->subsystem_device) { |
| 1226 | case 0x8070: /* P4G8X Deluxe */ |
| 1227 | asus_hides_smbus = 1; |
| 1228 | } |
Jean Delvare | 2f2d39d | 2007-01-05 11:23:15 +0100 | [diff] [blame] | 1229 | else if (dev->device == PCI_DEVICE_ID_INTEL_E7501_MCH) |
Jean Delvare | 321311a | 2006-07-31 08:53:15 +0200 | [diff] [blame] | 1230 | switch (dev->subsystem_device) { |
| 1231 | case 0x80c9: /* PU-DLS */ |
| 1232 | asus_hides_smbus = 1; |
| 1233 | } |
Jean Delvare | 2f2d39d | 2007-01-05 11:23:15 +0100 | [diff] [blame] | 1234 | else if (dev->device == PCI_DEVICE_ID_INTEL_82855GM_HB) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1235 | switch (dev->subsystem_device) { |
| 1236 | case 0x1751: /* M2N notebook */ |
| 1237 | case 0x1821: /* M5N notebook */ |
Mats Erik Andersson | 4096ed0 | 2009-05-12 12:05:23 +0200 | [diff] [blame] | 1238 | case 0x1897: /* A6L notebook */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1239 | asus_hides_smbus = 1; |
| 1240 | } |
Jean Delvare | 2f2d39d | 2007-01-05 11:23:15 +0100 | [diff] [blame] | 1241 | else if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1242 | switch (dev->subsystem_device) { |
| 1243 | case 0x184b: /* W1N notebook */ |
| 1244 | case 0x186a: /* M6Ne notebook */ |
| 1245 | asus_hides_smbus = 1; |
| 1246 | } |
Jean Delvare | 2f2d39d | 2007-01-05 11:23:15 +0100 | [diff] [blame] | 1247 | else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB) |
Jean Delvare | 2e45785 | 2007-01-05 09:17:56 +0100 | [diff] [blame] | 1248 | switch (dev->subsystem_device) { |
| 1249 | case 0x80f2: /* P4P800-X */ |
| 1250 | asus_hides_smbus = 1; |
| 1251 | } |
Jean Delvare | 2f2d39d | 2007-01-05 11:23:15 +0100 | [diff] [blame] | 1252 | else if (dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB) |
R.Marek@sh.cvut.cz | acc0663 | 2005-09-29 08:35:41 +0000 | [diff] [blame] | 1253 | switch (dev->subsystem_device) { |
| 1254 | case 0x1882: /* M6V notebook */ |
Jean Delvare | 2d1e1c7 | 2006-04-01 16:46:35 +0200 | [diff] [blame] | 1255 | case 0x1977: /* A6VA notebook */ |
R.Marek@sh.cvut.cz | acc0663 | 2005-09-29 08:35:41 +0000 | [diff] [blame] | 1256 | asus_hides_smbus = 1; |
| 1257 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1258 | } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_HP)) { |
| 1259 | if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 1260 | switch (dev->subsystem_device) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1261 | case 0x088C: /* HP Compaq nc8000 */ |
| 1262 | case 0x0890: /* HP Compaq nc6000 */ |
| 1263 | asus_hides_smbus = 1; |
| 1264 | } |
Jean Delvare | 2f2d39d | 2007-01-05 11:23:15 +0100 | [diff] [blame] | 1265 | else if (dev->device == PCI_DEVICE_ID_INTEL_82865_HB) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1266 | switch (dev->subsystem_device) { |
| 1267 | case 0x12bc: /* HP D330L */ |
Jean Delvare | e3b1bd5 | 2005-09-21 22:26:31 +0200 | [diff] [blame] | 1268 | case 0x12bd: /* HP D530 */ |
Michal Miroslaw | 74c5742 | 2009-05-12 13:49:25 -0700 | [diff] [blame] | 1269 | case 0x006a: /* HP Compaq nx9500 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1270 | asus_hides_smbus = 1; |
| 1271 | } |
Jean Delvare | 677cc64 | 2007-11-21 18:29:06 +0100 | [diff] [blame] | 1272 | else if (dev->device == PCI_DEVICE_ID_INTEL_82875_HB) |
| 1273 | switch (dev->subsystem_device) { |
| 1274 | case 0x12bf: /* HP xw4100 */ |
| 1275 | asus_hides_smbus = 1; |
| 1276 | } |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 1277 | } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG)) { |
| 1278 | if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) |
| 1279 | switch (dev->subsystem_device) { |
| 1280 | case 0xC00C: /* Samsung P35 notebook */ |
| 1281 | asus_hides_smbus = 1; |
| 1282 | } |
Rumen Ivanov Zarev | c87f883 | 2005-09-06 13:39:32 -0700 | [diff] [blame] | 1283 | } else if (unlikely(dev->subsystem_vendor == PCI_VENDOR_ID_COMPAQ)) { |
| 1284 | if (dev->device == PCI_DEVICE_ID_INTEL_82855PM_HB) |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 1285 | switch (dev->subsystem_device) { |
Rumen Ivanov Zarev | c87f883 | 2005-09-06 13:39:32 -0700 | [diff] [blame] | 1286 | case 0x0058: /* Compaq Evo N620c */ |
| 1287 | asus_hides_smbus = 1; |
| 1288 | } |
gw.kernel@tnode.com | d7698ed | 2007-08-23 21:22:04 +0200 | [diff] [blame] | 1289 | else if (dev->device == PCI_DEVICE_ID_INTEL_82810_IG3) |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 1290 | switch (dev->subsystem_device) { |
gw.kernel@tnode.com | d7698ed | 2007-08-23 21:22:04 +0200 | [diff] [blame] | 1291 | case 0xB16C: /* Compaq Deskpro EP 401963-001 (PCA# 010174) */ |
| 1292 | /* Motherboard doesn't have Host bridge |
| 1293 | * subvendor/subdevice IDs, therefore checking |
| 1294 | * its on-board VGA controller */ |
| 1295 | asus_hides_smbus = 1; |
| 1296 | } |
David O'Shea | 8293b0f | 2009-03-02 09:51:13 +0100 | [diff] [blame] | 1297 | else if (dev->device == PCI_DEVICE_ID_INTEL_82801DB_2) |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 1298 | switch (dev->subsystem_device) { |
Jean Delvare | 10260d9 | 2008-06-04 13:53:31 +0200 | [diff] [blame] | 1299 | case 0x00b8: /* Compaq Evo D510 CMT */ |
| 1300 | case 0x00b9: /* Compaq Evo D510 SFF */ |
Jean Delvare | 6b5096e | 2009-07-28 11:49:19 +0200 | [diff] [blame] | 1301 | case 0x00ba: /* Compaq Evo D510 USDT */ |
David O'Shea | 8293b0f | 2009-03-02 09:51:13 +0100 | [diff] [blame] | 1302 | /* Motherboard doesn't have Host bridge |
| 1303 | * subvendor/subdevice IDs and on-board VGA |
| 1304 | * controller is disabled if an AGP card is |
| 1305 | * inserted, therefore checking USB UHCI |
| 1306 | * Controller #1 */ |
Jean Delvare | 10260d9 | 2008-06-04 13:53:31 +0200 | [diff] [blame] | 1307 | asus_hides_smbus = 1; |
| 1308 | } |
Krzysztof Helt | 27e4685 | 2008-06-08 13:47:02 +0200 | [diff] [blame] | 1309 | else if (dev->device == PCI_DEVICE_ID_INTEL_82815_CGC) |
| 1310 | switch (dev->subsystem_device) { |
| 1311 | case 0x001A: /* Compaq Deskpro EN SSF P667 815E */ |
| 1312 | /* Motherboard doesn't have host bridge |
| 1313 | * subvendor/subdevice IDs, therefore checking |
| 1314 | * its on-board VGA controller */ |
| 1315 | asus_hides_smbus = 1; |
| 1316 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1317 | } |
| 1318 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 1319 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845_HB, asus_hides_smbus_hostbridge); |
| 1320 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82845G_HB, asus_hides_smbus_hostbridge); |
| 1321 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82850_HB, asus_hides_smbus_hostbridge); |
| 1322 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB, asus_hides_smbus_hostbridge); |
Jean Delvare | 677cc64 | 2007-11-21 18:29:06 +0100 | [diff] [blame] | 1323 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB, asus_hides_smbus_hostbridge); |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 1324 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_7205_0, asus_hides_smbus_hostbridge); |
| 1325 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7501_MCH, asus_hides_smbus_hostbridge); |
| 1326 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855PM_HB, asus_hides_smbus_hostbridge); |
| 1327 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82855GM_HB, asus_hides_smbus_hostbridge); |
| 1328 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82915GM_HB, asus_hides_smbus_hostbridge); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1329 | |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 1330 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG3, asus_hides_smbus_hostbridge); |
David O'Shea | 8293b0f | 2009-03-02 09:51:13 +0100 | [diff] [blame] | 1331 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_2, asus_hides_smbus_hostbridge); |
Krzysztof Helt | 27e4685 | 2008-06-08 13:47:02 +0200 | [diff] [blame] | 1332 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82815_CGC, asus_hides_smbus_hostbridge); |
gw.kernel@tnode.com | d7698ed | 2007-08-23 21:22:04 +0200 | [diff] [blame] | 1333 | |
Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 1334 | static void asus_hides_smbus_lpc(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1335 | { |
| 1336 | u16 val; |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 1337 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1338 | if (likely(!asus_hides_smbus)) |
| 1339 | return; |
| 1340 | |
| 1341 | pci_read_config_word(dev, 0xF2, &val); |
| 1342 | if (val & 0x8) { |
| 1343 | pci_write_config_word(dev, 0xF2, val & (~0x8)); |
| 1344 | pci_read_config_word(dev, 0xF2, &val); |
| 1345 | if (val & 0x8) |
Ryan Desfosses | 227f064 | 2014-04-18 20:13:50 -0400 | [diff] [blame] | 1346 | dev_info(&dev->dev, "i801 SMBus device continues to play 'hide and seek'! 0x%x\n", |
| 1347 | val); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1348 | else |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 1349 | dev_info(&dev->dev, "Enabled i801 SMBus device\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1350 | } |
| 1351 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 1352 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc); |
| 1353 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc); |
| 1354 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc); |
| 1355 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc); |
| 1356 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc); |
| 1357 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc); |
| 1358 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc); |
Rafael J. Wysocki | e1a2a51 | 2008-05-15 21:51:31 +0200 | [diff] [blame] | 1359 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801AA_0, asus_hides_smbus_lpc); |
| 1360 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0, asus_hides_smbus_lpc); |
| 1361 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0, asus_hides_smbus_lpc); |
| 1362 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0, asus_hides_smbus_lpc); |
| 1363 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, asus_hides_smbus_lpc); |
| 1364 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_12, asus_hides_smbus_lpc); |
| 1365 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_0, asus_hides_smbus_lpc); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1366 | |
Rafael J. Wysocki | e1a2a51 | 2008-05-15 21:51:31 +0200 | [diff] [blame] | 1367 | /* It appears we just have one such device. If not, we have a warning */ |
| 1368 | static void __iomem *asus_rcba_base; |
| 1369 | static void asus_hides_smbus_lpc_ich6_suspend(struct pci_dev *dev) |
R.Marek@sh.cvut.cz | acc0663 | 2005-09-29 08:35:41 +0000 | [diff] [blame] | 1370 | { |
Rafael J. Wysocki | e1a2a51 | 2008-05-15 21:51:31 +0200 | [diff] [blame] | 1371 | u32 rcba; |
R.Marek@sh.cvut.cz | acc0663 | 2005-09-29 08:35:41 +0000 | [diff] [blame] | 1372 | |
| 1373 | if (likely(!asus_hides_smbus)) |
| 1374 | return; |
Rafael J. Wysocki | e1a2a51 | 2008-05-15 21:51:31 +0200 | [diff] [blame] | 1375 | WARN_ON(asus_rcba_base); |
| 1376 | |
R.Marek@sh.cvut.cz | acc0663 | 2005-09-29 08:35:41 +0000 | [diff] [blame] | 1377 | pci_read_config_dword(dev, 0xF0, &rcba); |
Rafael J. Wysocki | e1a2a51 | 2008-05-15 21:51:31 +0200 | [diff] [blame] | 1378 | /* use bits 31:14, 16 kB aligned */ |
| 1379 | asus_rcba_base = ioremap_nocache(rcba & 0xFFFFC000, 0x4000); |
| 1380 | if (asus_rcba_base == NULL) |
| 1381 | return; |
| 1382 | } |
| 1383 | |
| 1384 | static void asus_hides_smbus_lpc_ich6_resume_early(struct pci_dev *dev) |
| 1385 | { |
| 1386 | u32 val; |
| 1387 | |
| 1388 | if (likely(!asus_hides_smbus || !asus_rcba_base)) |
| 1389 | return; |
| 1390 | /* read the Function Disable register, dword mode only */ |
| 1391 | val = readl(asus_rcba_base + 0x3418); |
| 1392 | writel(val & 0xFFFFFFF7, asus_rcba_base + 0x3418); /* enable the SMBus device */ |
| 1393 | } |
| 1394 | |
| 1395 | static void asus_hides_smbus_lpc_ich6_resume(struct pci_dev *dev) |
| 1396 | { |
| 1397 | if (likely(!asus_hides_smbus || !asus_rcba_base)) |
| 1398 | return; |
| 1399 | iounmap(asus_rcba_base); |
| 1400 | asus_rcba_base = NULL; |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 1401 | dev_info(&dev->dev, "Enabled ICH6/i801 SMBus device\n"); |
R.Marek@sh.cvut.cz | acc0663 | 2005-09-29 08:35:41 +0000 | [diff] [blame] | 1402 | } |
Rafael J. Wysocki | e1a2a51 | 2008-05-15 21:51:31 +0200 | [diff] [blame] | 1403 | |
| 1404 | static void asus_hides_smbus_lpc_ich6(struct pci_dev *dev) |
| 1405 | { |
| 1406 | asus_hides_smbus_lpc_ich6_suspend(dev); |
| 1407 | asus_hides_smbus_lpc_ich6_resume_early(dev); |
| 1408 | asus_hides_smbus_lpc_ich6_resume(dev); |
| 1409 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 1410 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6); |
Rafael J. Wysocki | e1a2a51 | 2008-05-15 21:51:31 +0200 | [diff] [blame] | 1411 | DECLARE_PCI_FIXUP_SUSPEND(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_suspend); |
| 1412 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume); |
| 1413 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, asus_hides_smbus_lpc_ich6_resume_early); |
Carl-Daniel Hailfinger | ce007ea | 2006-05-15 09:44:33 -0700 | [diff] [blame] | 1414 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1415 | /* |
| 1416 | * SiS 96x south bridge: BIOS typically hides SMBus device... |
| 1417 | */ |
Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 1418 | static void quirk_sis_96x_smbus(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1419 | { |
| 1420 | u8 val = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1421 | pci_read_config_byte(dev, 0x77, &val); |
Mark M. Hoffman | 2f5c33b | 2007-01-08 22:11:29 -0500 | [diff] [blame] | 1422 | if (val & 0x10) { |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 1423 | dev_info(&dev->dev, "Enabling SiS 96x SMBus\n"); |
Mark M. Hoffman | 2f5c33b | 2007-01-08 22:11:29 -0500 | [diff] [blame] | 1424 | pci_write_config_byte(dev, 0x77, val & ~0x10); |
| 1425 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1426 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 1427 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus); |
| 1428 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus); |
| 1429 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus); |
| 1430 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus); |
Rafael J. Wysocki | e1a2a51 | 2008-05-15 21:51:31 +0200 | [diff] [blame] | 1431 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_961, quirk_sis_96x_smbus); |
| 1432 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_962, quirk_sis_96x_smbus); |
| 1433 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_963, quirk_sis_96x_smbus); |
| 1434 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_LPC, quirk_sis_96x_smbus); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1435 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1436 | /* |
| 1437 | * ... This is further complicated by the fact that some SiS96x south |
| 1438 | * bridges pretend to be 85C503/5513 instead. In that case see if we |
| 1439 | * spotted a compatible north bridge to make sure. |
| 1440 | * (pci_find_device doesn't work yet) |
| 1441 | * |
| 1442 | * We can also enable the sis96x bit in the discovery register.. |
| 1443 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1444 | #define SIS_DETECT_REGISTER 0x40 |
| 1445 | |
Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 1446 | static void quirk_sis_503(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1447 | { |
| 1448 | u8 reg; |
| 1449 | u16 devid; |
| 1450 | |
| 1451 | pci_read_config_byte(dev, SIS_DETECT_REGISTER, ®); |
| 1452 | pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg | (1 << 6)); |
| 1453 | pci_read_config_word(dev, PCI_DEVICE_ID, &devid); |
| 1454 | if (((devid & 0xfff0) != 0x0960) && (devid != 0x0018)) { |
| 1455 | pci_write_config_byte(dev, SIS_DETECT_REGISTER, reg); |
| 1456 | return; |
| 1457 | } |
| 1458 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1459 | /* |
Mark M. Hoffman | 2f5c33b | 2007-01-08 22:11:29 -0500 | [diff] [blame] | 1460 | * Ok, it now shows up as a 96x.. run the 96x quirk by |
| 1461 | * hand in case it has already been processed. |
| 1462 | * (depends on link order, which is apparently not guaranteed) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1463 | */ |
| 1464 | dev->device = devid; |
Mark M. Hoffman | 2f5c33b | 2007-01-08 22:11:29 -0500 | [diff] [blame] | 1465 | quirk_sis_96x_smbus(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1466 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 1467 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503); |
Rafael J. Wysocki | e1a2a51 | 2008-05-15 21:51:31 +0200 | [diff] [blame] | 1468 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_503, quirk_sis_503); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1469 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1470 | |
Bauke Jan Douma | e5548e9 | 2006-02-28 21:44:36 +0100 | [diff] [blame] | 1471 | /* |
| 1472 | * On ASUS A8V and A8V Deluxe boards, the onboard AC97 audio controller |
| 1473 | * and MC97 modem controller are disabled when a second PCI soundcard is |
| 1474 | * present. This patch, tweaking the VT8237 ISA bridge, enables them. |
| 1475 | * -- bjd |
| 1476 | */ |
Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 1477 | static void asus_hides_ac97_lpc(struct pci_dev *dev) |
Bauke Jan Douma | e5548e9 | 2006-02-28 21:44:36 +0100 | [diff] [blame] | 1478 | { |
| 1479 | u8 val; |
| 1480 | int asus_hides_ac97 = 0; |
| 1481 | |
| 1482 | if (likely(dev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK)) { |
| 1483 | if (dev->device == PCI_DEVICE_ID_VIA_8237) |
| 1484 | asus_hides_ac97 = 1; |
| 1485 | } |
| 1486 | |
| 1487 | if (!asus_hides_ac97) |
| 1488 | return; |
| 1489 | |
| 1490 | pci_read_config_byte(dev, 0x50, &val); |
| 1491 | if (val & 0xc0) { |
| 1492 | pci_write_config_byte(dev, 0x50, val & (~0xc0)); |
| 1493 | pci_read_config_byte(dev, 0x50, &val); |
| 1494 | if (val & 0xc0) |
Ryan Desfosses | 227f064 | 2014-04-18 20:13:50 -0400 | [diff] [blame] | 1495 | dev_info(&dev->dev, "Onboard AC97/MC97 devices continue to play 'hide and seek'! 0x%x\n", |
| 1496 | val); |
Bauke Jan Douma | e5548e9 | 2006-02-28 21:44:36 +0100 | [diff] [blame] | 1497 | else |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 1498 | dev_info(&dev->dev, "Enabled onboard AC97/MC97 devices\n"); |
Bauke Jan Douma | e5548e9 | 2006-02-28 21:44:36 +0100 | [diff] [blame] | 1499 | } |
| 1500 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 1501 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc); |
Rafael J. Wysocki | e1a2a51 | 2008-05-15 21:51:31 +0200 | [diff] [blame] | 1502 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, asus_hides_ac97_lpc); |
Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 1503 | |
Tejun Heo | 7796705 | 2006-08-19 03:54:39 +0900 | [diff] [blame] | 1504 | #if defined(CONFIG_ATA) || defined(CONFIG_ATA_MODULE) |
Alan Cox | 15e0c69 | 2006-07-12 15:05:41 +0100 | [diff] [blame] | 1505 | |
| 1506 | /* |
| 1507 | * If we are using libata we can drive this chip properly but must |
| 1508 | * do this early on to make the additional device appear during |
| 1509 | * the PCI scanning. |
| 1510 | */ |
Tejun Heo | 5ee2ae7 | 2007-02-26 20:16:13 +0900 | [diff] [blame] | 1511 | static void quirk_jmicron_ata(struct pci_dev *pdev) |
Alan Cox | 15e0c69 | 2006-07-12 15:05:41 +0100 | [diff] [blame] | 1512 | { |
Tejun Heo | e34bb37 | 2007-02-26 20:24:03 +0900 | [diff] [blame] | 1513 | u32 conf1, conf5, class; |
Alan Cox | 15e0c69 | 2006-07-12 15:05:41 +0100 | [diff] [blame] | 1514 | u8 hdr; |
| 1515 | |
| 1516 | /* Only poke fn 0 */ |
| 1517 | if (PCI_FUNC(pdev->devfn)) |
| 1518 | return; |
| 1519 | |
Tejun Heo | 5ee2ae7 | 2007-02-26 20:16:13 +0900 | [diff] [blame] | 1520 | pci_read_config_dword(pdev, 0x40, &conf1); |
| 1521 | pci_read_config_dword(pdev, 0x80, &conf5); |
Alan Cox | 15e0c69 | 2006-07-12 15:05:41 +0100 | [diff] [blame] | 1522 | |
Tejun Heo | 5ee2ae7 | 2007-02-26 20:16:13 +0900 | [diff] [blame] | 1523 | conf1 &= ~0x00CFF302; /* Clear bit 1, 8, 9, 12-19, 22, 23 */ |
| 1524 | conf5 &= ~(1 << 24); /* Clear bit 24 */ |
Alan Cox | 15e0c69 | 2006-07-12 15:05:41 +0100 | [diff] [blame] | 1525 | |
Tejun Heo | 5ee2ae7 | 2007-02-26 20:16:13 +0900 | [diff] [blame] | 1526 | switch (pdev->device) { |
Tejun Heo | 4daedcf | 2010-06-03 11:57:04 +0200 | [diff] [blame] | 1527 | case PCI_DEVICE_ID_JMICRON_JMB360: /* SATA single port */ |
| 1528 | case PCI_DEVICE_ID_JMICRON_JMB362: /* SATA dual ports */ |
Tejun Heo | 5b6ae5b | 2010-07-30 11:42:42 +0200 | [diff] [blame] | 1529 | case PCI_DEVICE_ID_JMICRON_JMB364: /* SATA dual ports */ |
Tejun Heo | 5ee2ae7 | 2007-02-26 20:16:13 +0900 | [diff] [blame] | 1530 | /* The controller should be in single function ahci mode */ |
| 1531 | conf1 |= 0x0002A100; /* Set 8, 13, 15, 17 */ |
| 1532 | break; |
Alan Cox | 15e0c69 | 2006-07-12 15:05:41 +0100 | [diff] [blame] | 1533 | |
Tejun Heo | 5ee2ae7 | 2007-02-26 20:16:13 +0900 | [diff] [blame] | 1534 | case PCI_DEVICE_ID_JMICRON_JMB365: |
| 1535 | case PCI_DEVICE_ID_JMICRON_JMB366: |
| 1536 | /* Redirect IDE second PATA port to the right spot */ |
| 1537 | conf5 |= (1 << 24); |
| 1538 | /* Fall through */ |
| 1539 | case PCI_DEVICE_ID_JMICRON_JMB361: |
| 1540 | case PCI_DEVICE_ID_JMICRON_JMB363: |
Tejun Heo | 5b6ae5b | 2010-07-30 11:42:42 +0200 | [diff] [blame] | 1541 | case PCI_DEVICE_ID_JMICRON_JMB369: |
Tejun Heo | 5ee2ae7 | 2007-02-26 20:16:13 +0900 | [diff] [blame] | 1542 | /* Enable dual function mode, AHCI on fn 0, IDE fn1 */ |
| 1543 | /* Set the class codes correctly and then direct IDE 0 */ |
Tejun Heo | 3a9e3a5 | 2007-10-23 15:27:31 +0900 | [diff] [blame] | 1544 | conf1 |= 0x00C2A1B3; /* Set 0, 1, 4, 5, 7, 8, 13, 15, 17, 22, 23 */ |
Tejun Heo | 5ee2ae7 | 2007-02-26 20:16:13 +0900 | [diff] [blame] | 1545 | break; |
| 1546 | |
| 1547 | case PCI_DEVICE_ID_JMICRON_JMB368: |
| 1548 | /* The controller should be in single function IDE mode */ |
| 1549 | conf1 |= 0x00C00000; /* Set 22, 23 */ |
| 1550 | break; |
Alan Cox | 15e0c69 | 2006-07-12 15:05:41 +0100 | [diff] [blame] | 1551 | } |
Tejun Heo | 5ee2ae7 | 2007-02-26 20:16:13 +0900 | [diff] [blame] | 1552 | |
| 1553 | pci_write_config_dword(pdev, 0x40, conf1); |
| 1554 | pci_write_config_dword(pdev, 0x80, conf5); |
| 1555 | |
| 1556 | /* Update pdev accordingly */ |
| 1557 | pci_read_config_byte(pdev, PCI_HEADER_TYPE, &hdr); |
| 1558 | pdev->hdr_type = hdr & 0x7f; |
| 1559 | pdev->multifunction = !!(hdr & 0x80); |
Tejun Heo | e34bb37 | 2007-02-26 20:24:03 +0900 | [diff] [blame] | 1560 | |
| 1561 | pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class); |
| 1562 | pdev->class = class >> 8; |
Alan Cox | 15e0c69 | 2006-07-12 15:05:41 +0100 | [diff] [blame] | 1563 | } |
Tejun Heo | 5ee2ae7 | 2007-02-26 20:16:13 +0900 | [diff] [blame] | 1564 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata); |
| 1565 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata); |
Tejun Heo | 4daedcf | 2010-06-03 11:57:04 +0200 | [diff] [blame] | 1566 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB362, quirk_jmicron_ata); |
Tejun Heo | 5ee2ae7 | 2007-02-26 20:16:13 +0900 | [diff] [blame] | 1567 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata); |
Tejun Heo | 5b6ae5b | 2010-07-30 11:42:42 +0200 | [diff] [blame] | 1568 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB364, quirk_jmicron_ata); |
Tejun Heo | 5ee2ae7 | 2007-02-26 20:16:13 +0900 | [diff] [blame] | 1569 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata); |
| 1570 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata); |
| 1571 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata); |
Tejun Heo | 5b6ae5b | 2010-07-30 11:42:42 +0200 | [diff] [blame] | 1572 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB369, quirk_jmicron_ata); |
Rafael J. Wysocki | e1a2a51 | 2008-05-15 21:51:31 +0200 | [diff] [blame] | 1573 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata); |
| 1574 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata); |
Tejun Heo | 4daedcf | 2010-06-03 11:57:04 +0200 | [diff] [blame] | 1575 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB362, quirk_jmicron_ata); |
Rafael J. Wysocki | e1a2a51 | 2008-05-15 21:51:31 +0200 | [diff] [blame] | 1576 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata); |
Tejun Heo | 5b6ae5b | 2010-07-30 11:42:42 +0200 | [diff] [blame] | 1577 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB364, quirk_jmicron_ata); |
Rafael J. Wysocki | e1a2a51 | 2008-05-15 21:51:31 +0200 | [diff] [blame] | 1578 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata); |
| 1579 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata); |
| 1580 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata); |
Tejun Heo | 5b6ae5b | 2010-07-30 11:42:42 +0200 | [diff] [blame] | 1581 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB369, quirk_jmicron_ata); |
Alan Cox | 15e0c69 | 2006-07-12 15:05:41 +0100 | [diff] [blame] | 1582 | |
| 1583 | #endif |
| 1584 | |
Zhang Rui | 91f15fb | 2015-08-24 15:27:11 -0500 | [diff] [blame] | 1585 | static void quirk_jmicron_async_suspend(struct pci_dev *dev) |
| 1586 | { |
| 1587 | if (dev->multifunction) { |
| 1588 | device_disable_async_suspend(&dev->dev); |
| 1589 | dev_info(&dev->dev, "async suspend disabled to avoid multi-function power-on ordering issue\n"); |
| 1590 | } |
| 1591 | } |
| 1592 | DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE, 8, quirk_jmicron_async_suspend); |
| 1593 | DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_CLASS_STORAGE_SATA_AHCI, 0, quirk_jmicron_async_suspend); |
| 1594 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_JMICRON, 0x2362, quirk_jmicron_async_suspend); |
| 1595 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_JMICRON, 0x236f, quirk_jmicron_async_suspend); |
| 1596 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1597 | #ifdef CONFIG_X86_IO_APIC |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 1598 | static void quirk_alder_ioapic(struct pci_dev *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1599 | { |
| 1600 | int i; |
| 1601 | |
| 1602 | if ((pdev->class >> 8) != 0xff00) |
| 1603 | return; |
| 1604 | |
| 1605 | /* the first BAR is the location of the IO APIC...we must |
| 1606 | * not touch this (and it's already covered by the fixmap), so |
| 1607 | * forcibly insert it into the resource tree */ |
| 1608 | if (pci_resource_start(pdev, 0) && pci_resource_len(pdev, 0)) |
| 1609 | insert_resource(&iomem_resource, &pdev->resource[0]); |
| 1610 | |
| 1611 | /* The next five BARs all seem to be rubbish, so just clean |
| 1612 | * them out */ |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 1613 | for (i = 1; i < 6; i++) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1614 | memset(&pdev->resource[i], 0, sizeof(pdev->resource[i])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1615 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 1616 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_EESSC, quirk_alder_ioapic); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1617 | #endif |
| 1618 | |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 1619 | static void quirk_pcie_mch(struct pci_dev *pdev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1620 | { |
Eric W. Biederman | 0ba379e | 2009-09-06 21:48:35 -0700 | [diff] [blame] | 1621 | pdev->no_msi = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1622 | } |
Andrew Morton | 652c538 | 2007-11-21 15:07:13 -0800 | [diff] [blame] | 1623 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7520_MCH, quirk_pcie_mch); |
| 1624 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7320_MCH, quirk_pcie_mch); |
| 1625 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_E7525_MCH, quirk_pcie_mch); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1626 | |
Kristen Accardi | 4602b88 | 2005-08-16 15:15:58 -0700 | [diff] [blame] | 1627 | |
| 1628 | /* |
| 1629 | * It's possible for the MSI to get corrupted if shpc and acpi |
| 1630 | * are used together on certain PXH-based systems. |
| 1631 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 1632 | static void quirk_pcie_pxh(struct pci_dev *dev) |
Kristen Accardi | 4602b88 | 2005-08-16 15:15:58 -0700 | [diff] [blame] | 1633 | { |
Kristen Accardi | 4602b88 | 2005-08-16 15:15:58 -0700 | [diff] [blame] | 1634 | dev->no_msi = 1; |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 1635 | dev_warn(&dev->dev, "PXH quirk detected; SHPC device MSI disabled\n"); |
Kristen Accardi | 4602b88 | 2005-08-16 15:15:58 -0700 | [diff] [blame] | 1636 | } |
| 1637 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_0, quirk_pcie_pxh); |
| 1638 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHD_1, quirk_pcie_pxh); |
| 1639 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_pcie_pxh); |
| 1640 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_pcie_pxh); |
| 1641 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_pcie_pxh); |
| 1642 | |
Kristen Carlson Accardi | ffadcc2 | 2006-07-12 08:59:00 -0700 | [diff] [blame] | 1643 | /* |
| 1644 | * Some Intel PCI Express chipsets have trouble with downstream |
| 1645 | * device power management. |
| 1646 | */ |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 1647 | static void quirk_intel_pcie_pm(struct pci_dev *dev) |
Kristen Carlson Accardi | ffadcc2 | 2006-07-12 08:59:00 -0700 | [diff] [blame] | 1648 | { |
| 1649 | pci_pm_d3_delay = 120; |
| 1650 | dev->no_d1d2 = 1; |
| 1651 | } |
| 1652 | |
| 1653 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_pcie_pm); |
| 1654 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_pcie_pm); |
| 1655 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_pcie_pm); |
| 1656 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_pcie_pm); |
| 1657 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_pcie_pm); |
| 1658 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_pcie_pm); |
| 1659 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_pcie_pm); |
| 1660 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_pcie_pm); |
| 1661 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_pcie_pm); |
| 1662 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_pcie_pm); |
| 1663 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2601, quirk_intel_pcie_pm); |
| 1664 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2602, quirk_intel_pcie_pm); |
| 1665 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2603, quirk_intel_pcie_pm); |
| 1666 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2604, quirk_intel_pcie_pm); |
| 1667 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2605, quirk_intel_pcie_pm); |
| 1668 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2606, quirk_intel_pcie_pm); |
| 1669 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2607, quirk_intel_pcie_pm); |
| 1670 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2608, quirk_intel_pcie_pm); |
| 1671 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2609, quirk_intel_pcie_pm); |
| 1672 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm); |
| 1673 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm); |
Kristen Accardi | 4602b88 | 2005-08-16 15:15:58 -0700 | [diff] [blame] | 1674 | |
Stefan Assmann | 426b3b8 | 2008-06-11 16:35:16 +0200 | [diff] [blame] | 1675 | #ifdef CONFIG_X86_IO_APIC |
| 1676 | /* |
Stefan Assmann | e1d3a90 | 2008-06-11 16:35:17 +0200 | [diff] [blame] | 1677 | * Boot interrupts on some chipsets cannot be turned off. For these chipsets, |
| 1678 | * remap the original interrupt in the linux kernel to the boot interrupt, so |
| 1679 | * that a PCI device's interrupt handler is installed on the boot interrupt |
| 1680 | * line instead. |
| 1681 | */ |
| 1682 | static void quirk_reroute_to_boot_interrupts_intel(struct pci_dev *dev) |
| 1683 | { |
Stefan Assmann | 41b9eb2 | 2008-07-15 13:48:55 +0200 | [diff] [blame] | 1684 | if (noioapicquirk || noioapicreroute) |
Stefan Assmann | e1d3a90 | 2008-06-11 16:35:17 +0200 | [diff] [blame] | 1685 | return; |
| 1686 | |
| 1687 | dev->irq_reroute_variant = INTEL_IRQ_REROUTE_VARIANT; |
Bjorn Helgaas | fdcdaf6 | 2009-09-14 14:36:41 -0600 | [diff] [blame] | 1688 | dev_info(&dev->dev, "rerouting interrupts for [%04x:%04x]\n", |
| 1689 | dev->vendor, dev->device); |
Stefan Assmann | e1d3a90 | 2008-06-11 16:35:17 +0200 | [diff] [blame] | 1690 | } |
Olaf Dabrunz | 88d1dce | 2008-07-08 15:59:48 +0200 | [diff] [blame] | 1691 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel); |
| 1692 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel); |
| 1693 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel); |
| 1694 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel); |
| 1695 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel); |
| 1696 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel); |
| 1697 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel); |
| 1698 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel); |
| 1699 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel); |
| 1700 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel); |
| 1701 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel); |
| 1702 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel); |
| 1703 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel); |
| 1704 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel); |
| 1705 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel); |
| 1706 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel); |
Stefan Assmann | e1d3a90 | 2008-06-11 16:35:17 +0200 | [diff] [blame] | 1707 | |
| 1708 | /* |
Stefan Assmann | 426b3b8 | 2008-06-11 16:35:16 +0200 | [diff] [blame] | 1709 | * On some chipsets we can disable the generation of legacy INTx boot |
| 1710 | * interrupts. |
| 1711 | */ |
| 1712 | |
| 1713 | /* |
| 1714 | * IO-APIC1 on 6300ESB generates boot interrupts, see intel order no |
| 1715 | * 300641-004US, section 5.7.3. |
| 1716 | */ |
| 1717 | #define INTEL_6300_IOAPIC_ABAR 0x40 |
| 1718 | #define INTEL_6300_DISABLE_BOOT_IRQ (1<<14) |
| 1719 | |
| 1720 | static void quirk_disable_intel_boot_interrupt(struct pci_dev *dev) |
| 1721 | { |
| 1722 | u16 pci_config_word; |
| 1723 | |
| 1724 | if (noioapicquirk) |
| 1725 | return; |
| 1726 | |
| 1727 | pci_read_config_word(dev, INTEL_6300_IOAPIC_ABAR, &pci_config_word); |
| 1728 | pci_config_word |= INTEL_6300_DISABLE_BOOT_IRQ; |
| 1729 | pci_write_config_word(dev, INTEL_6300_IOAPIC_ABAR, pci_config_word); |
| 1730 | |
Bjorn Helgaas | fdcdaf6 | 2009-09-14 14:36:41 -0600 | [diff] [blame] | 1731 | dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n", |
| 1732 | dev->vendor, dev->device); |
Stefan Assmann | 426b3b8 | 2008-06-11 16:35:16 +0200 | [diff] [blame] | 1733 | } |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 1734 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt); |
| 1735 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt); |
Olaf Dabrunz | 7725118 | 2008-07-08 15:59:47 +0200 | [diff] [blame] | 1736 | |
| 1737 | /* |
| 1738 | * disable boot interrupts on HT-1000 |
| 1739 | */ |
| 1740 | #define BC_HT1000_FEATURE_REG 0x64 |
| 1741 | #define BC_HT1000_PIC_REGS_ENABLE (1<<0) |
| 1742 | #define BC_HT1000_MAP_IDX 0xC00 |
| 1743 | #define BC_HT1000_MAP_DATA 0xC01 |
| 1744 | |
| 1745 | static void quirk_disable_broadcom_boot_interrupt(struct pci_dev *dev) |
| 1746 | { |
| 1747 | u32 pci_config_dword; |
| 1748 | u8 irq; |
| 1749 | |
| 1750 | if (noioapicquirk) |
| 1751 | return; |
| 1752 | |
| 1753 | pci_read_config_dword(dev, BC_HT1000_FEATURE_REG, &pci_config_dword); |
| 1754 | pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword | |
| 1755 | BC_HT1000_PIC_REGS_ENABLE); |
| 1756 | |
| 1757 | for (irq = 0x10; irq < 0x10 + 32; irq++) { |
| 1758 | outb(irq, BC_HT1000_MAP_IDX); |
| 1759 | outb(0x00, BC_HT1000_MAP_DATA); |
| 1760 | } |
| 1761 | |
| 1762 | pci_write_config_dword(dev, BC_HT1000_FEATURE_REG, pci_config_dword); |
| 1763 | |
Bjorn Helgaas | fdcdaf6 | 2009-09-14 14:36:41 -0600 | [diff] [blame] | 1764 | dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n", |
| 1765 | dev->vendor, dev->device); |
Olaf Dabrunz | 7725118 | 2008-07-08 15:59:47 +0200 | [diff] [blame] | 1766 | } |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 1767 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt); |
| 1768 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000SB, quirk_disable_broadcom_boot_interrupt); |
Olaf Dabrunz | 542622d | 2008-07-08 15:59:48 +0200 | [diff] [blame] | 1769 | |
| 1770 | /* |
| 1771 | * disable boot interrupts on AMD and ATI chipsets |
| 1772 | */ |
| 1773 | /* |
| 1774 | * NOIOAMODE needs to be disabled to disable "boot interrupts". For AMD 8131 |
| 1775 | * rev. A0 and B0, NOIOAMODE needs to be disabled anyway to fix IO-APIC mode |
| 1776 | * (due to an erratum). |
| 1777 | */ |
| 1778 | #define AMD_813X_MISC 0x40 |
| 1779 | #define AMD_813X_NOIOAMODE (1<<0) |
Stefan Assmann | 4fd8bdc | 2009-10-27 08:57:42 +0100 | [diff] [blame] | 1780 | #define AMD_813X_REV_B1 0x12 |
Stefan Assmann | bbe1944 | 2009-02-26 10:46:48 -0800 | [diff] [blame] | 1781 | #define AMD_813X_REV_B2 0x13 |
Olaf Dabrunz | 542622d | 2008-07-08 15:59:48 +0200 | [diff] [blame] | 1782 | |
| 1783 | static void quirk_disable_amd_813x_boot_interrupt(struct pci_dev *dev) |
| 1784 | { |
| 1785 | u32 pci_config_dword; |
| 1786 | |
| 1787 | if (noioapicquirk) |
| 1788 | return; |
Stefan Assmann | 4fd8bdc | 2009-10-27 08:57:42 +0100 | [diff] [blame] | 1789 | if ((dev->revision == AMD_813X_REV_B1) || |
| 1790 | (dev->revision == AMD_813X_REV_B2)) |
Stefan Assmann | bbe1944 | 2009-02-26 10:46:48 -0800 | [diff] [blame] | 1791 | return; |
Olaf Dabrunz | 542622d | 2008-07-08 15:59:48 +0200 | [diff] [blame] | 1792 | |
| 1793 | pci_read_config_dword(dev, AMD_813X_MISC, &pci_config_dword); |
| 1794 | pci_config_dword &= ~AMD_813X_NOIOAMODE; |
| 1795 | pci_write_config_dword(dev, AMD_813X_MISC, pci_config_dword); |
| 1796 | |
Bjorn Helgaas | fdcdaf6 | 2009-09-14 14:36:41 -0600 | [diff] [blame] | 1797 | dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n", |
| 1798 | dev->vendor, dev->device); |
Olaf Dabrunz | 542622d | 2008-07-08 15:59:48 +0200 | [diff] [blame] | 1799 | } |
Stefan Assmann | 4fd8bdc | 2009-10-27 08:57:42 +0100 | [diff] [blame] | 1800 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_amd_813x_boot_interrupt); |
| 1801 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_amd_813x_boot_interrupt); |
| 1802 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE, quirk_disable_amd_813x_boot_interrupt); |
| 1803 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE, quirk_disable_amd_813x_boot_interrupt); |
Olaf Dabrunz | 542622d | 2008-07-08 15:59:48 +0200 | [diff] [blame] | 1804 | |
| 1805 | #define AMD_8111_PCI_IRQ_ROUTING 0x56 |
| 1806 | |
| 1807 | static void quirk_disable_amd_8111_boot_interrupt(struct pci_dev *dev) |
| 1808 | { |
| 1809 | u16 pci_config_word; |
| 1810 | |
| 1811 | if (noioapicquirk) |
| 1812 | return; |
| 1813 | |
| 1814 | pci_read_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, &pci_config_word); |
| 1815 | if (!pci_config_word) { |
Ryan Desfosses | 227f064 | 2014-04-18 20:13:50 -0400 | [diff] [blame] | 1816 | dev_info(&dev->dev, "boot interrupts on device [%04x:%04x] already disabled\n", |
| 1817 | dev->vendor, dev->device); |
Olaf Dabrunz | 542622d | 2008-07-08 15:59:48 +0200 | [diff] [blame] | 1818 | return; |
| 1819 | } |
| 1820 | pci_write_config_word(dev, AMD_8111_PCI_IRQ_ROUTING, 0); |
Bjorn Helgaas | fdcdaf6 | 2009-09-14 14:36:41 -0600 | [diff] [blame] | 1821 | dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n", |
| 1822 | dev->vendor, dev->device); |
Olaf Dabrunz | 542622d | 2008-07-08 15:59:48 +0200 | [diff] [blame] | 1823 | } |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 1824 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt); |
| 1825 | DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_SMBUS, quirk_disable_amd_8111_boot_interrupt); |
Stefan Assmann | 426b3b8 | 2008-06-11 16:35:16 +0200 | [diff] [blame] | 1826 | #endif /* CONFIG_X86_IO_APIC */ |
| 1827 | |
Sergei Shtylyov | 33dced2 | 2007-02-07 18:18:45 +0100 | [diff] [blame] | 1828 | /* |
| 1829 | * Toshiba TC86C001 IDE controller reports the standard 8-byte BAR0 size |
| 1830 | * but the PIO transfers won't work if BAR0 falls at the odd 8 bytes. |
| 1831 | * Re-allocate the region if needed... |
| 1832 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 1833 | static void quirk_tc86c001_ide(struct pci_dev *dev) |
Sergei Shtylyov | 33dced2 | 2007-02-07 18:18:45 +0100 | [diff] [blame] | 1834 | { |
| 1835 | struct resource *r = &dev->resource[0]; |
| 1836 | |
| 1837 | if (r->start & 0x8) { |
Bjorn Helgaas | bd064f0 | 2014-02-26 11:25:58 -0700 | [diff] [blame] | 1838 | r->flags |= IORESOURCE_UNSET; |
Sergei Shtylyov | 33dced2 | 2007-02-07 18:18:45 +0100 | [diff] [blame] | 1839 | r->start = 0; |
| 1840 | r->end = 0xf; |
| 1841 | } |
| 1842 | } |
| 1843 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TOSHIBA_2, |
| 1844 | PCI_DEVICE_ID_TOSHIBA_TC86C001_IDE, |
| 1845 | quirk_tc86c001_ide); |
| 1846 | |
Ian Abbott | 21c5fd9 | 2012-10-30 17:25:53 +0000 | [diff] [blame] | 1847 | /* |
| 1848 | * PLX PCI 9050 PCI Target bridge controller has an errata that prevents the |
| 1849 | * local configuration registers accessible via BAR0 (memory) or BAR1 (i/o) |
| 1850 | * being read correctly if bit 7 of the base address is set. |
| 1851 | * The BAR0 or BAR1 region may be disabled (size 0) or enabled (size 128). |
| 1852 | * Re-allocate the regions to a 256-byte boundary if necessary. |
| 1853 | */ |
Linus Torvalds | 193c0d6 | 2012-12-13 12:14:47 -0800 | [diff] [blame] | 1854 | static void quirk_plx_pci9050(struct pci_dev *dev) |
Ian Abbott | 21c5fd9 | 2012-10-30 17:25:53 +0000 | [diff] [blame] | 1855 | { |
| 1856 | unsigned int bar; |
| 1857 | |
| 1858 | /* Fixed in revision 2 (PCI 9052). */ |
| 1859 | if (dev->revision >= 2) |
| 1860 | return; |
| 1861 | for (bar = 0; bar <= 1; bar++) |
| 1862 | if (pci_resource_len(dev, bar) == 0x80 && |
| 1863 | (pci_resource_start(dev, bar) & 0x80)) { |
| 1864 | struct resource *r = &dev->resource[bar]; |
Ryan Desfosses | 227f064 | 2014-04-18 20:13:50 -0400 | [diff] [blame] | 1865 | dev_info(&dev->dev, "Re-allocating PLX PCI 9050 BAR %u to length 256 to avoid bit 7 bug\n", |
Ian Abbott | 21c5fd9 | 2012-10-30 17:25:53 +0000 | [diff] [blame] | 1866 | bar); |
Bjorn Helgaas | bd064f0 | 2014-02-26 11:25:58 -0700 | [diff] [blame] | 1867 | r->flags |= IORESOURCE_UNSET; |
Ian Abbott | 21c5fd9 | 2012-10-30 17:25:53 +0000 | [diff] [blame] | 1868 | r->start = 0; |
| 1869 | r->end = 0xff; |
| 1870 | } |
| 1871 | } |
| 1872 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050, |
| 1873 | quirk_plx_pci9050); |
Ian Abbott | 2794bb2 | 2012-10-29 14:40:18 +0000 | [diff] [blame] | 1874 | /* |
| 1875 | * The following Meilhaus (vendor ID 0x1402) device IDs (amongst others) |
| 1876 | * may be using the PLX PCI 9050: 0x0630, 0x0940, 0x0950, 0x0960, 0x100b, |
| 1877 | * 0x1400, 0x140a, 0x140b, 0x14e0, 0x14ea, 0x14eb, 0x1604, 0x1608, 0x160c, |
| 1878 | * 0x168f, 0x2000, 0x2600, 0x3000, 0x810a, 0x810b. |
| 1879 | * |
| 1880 | * Currently, device IDs 0x2000 and 0x2600 are used by the Comedi "me_daq" |
| 1881 | * driver. |
| 1882 | */ |
| 1883 | DECLARE_PCI_FIXUP_HEADER(0x1402, 0x2000, quirk_plx_pci9050); |
| 1884 | DECLARE_PCI_FIXUP_HEADER(0x1402, 0x2600, quirk_plx_pci9050); |
Ian Abbott | 21c5fd9 | 2012-10-30 17:25:53 +0000 | [diff] [blame] | 1885 | |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 1886 | static void quirk_netmos(struct pci_dev *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1887 | { |
| 1888 | unsigned int num_parallel = (dev->subsystem_device & 0xf0) >> 4; |
| 1889 | unsigned int num_serial = dev->subsystem_device & 0xf; |
| 1890 | |
| 1891 | /* |
| 1892 | * These Netmos parts are multiport serial devices with optional |
| 1893 | * parallel ports. Even when parallel ports are present, they |
| 1894 | * are identified as class SERIAL, which means the serial driver |
| 1895 | * will claim them. To prevent this, mark them as class OTHER. |
| 1896 | * These combo devices should be claimed by parport_serial. |
| 1897 | * |
| 1898 | * The subdevice ID is of the form 0x00PS, where <P> is the number |
| 1899 | * of parallel ports and <S> is the number of serial ports. |
| 1900 | */ |
| 1901 | switch (dev->device) { |
Jiri Slaby | 4c9c168 | 2008-12-08 16:19:14 +0100 | [diff] [blame] | 1902 | case PCI_DEVICE_ID_NETMOS_9835: |
| 1903 | /* Well, this rule doesn't hold for the following 9835 device */ |
| 1904 | if (dev->subsystem_vendor == PCI_VENDOR_ID_IBM && |
| 1905 | dev->subsystem_device == 0x0299) |
| 1906 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1907 | case PCI_DEVICE_ID_NETMOS_9735: |
| 1908 | case PCI_DEVICE_ID_NETMOS_9745: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1909 | case PCI_DEVICE_ID_NETMOS_9845: |
| 1910 | case PCI_DEVICE_ID_NETMOS_9855: |
Yinghai Lu | 08803ef | 2012-02-23 23:46:56 -0800 | [diff] [blame] | 1911 | if (num_parallel) { |
Ryan Desfosses | 227f064 | 2014-04-18 20:13:50 -0400 | [diff] [blame] | 1912 | dev_info(&dev->dev, "Netmos %04x (%u parallel, %u serial); changing class SERIAL to OTHER (use parport_serial)\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1913 | dev->device, num_parallel, num_serial); |
| 1914 | dev->class = (PCI_CLASS_COMMUNICATION_OTHER << 8) | |
| 1915 | (dev->class & 0xff); |
| 1916 | } |
| 1917 | } |
| 1918 | } |
Yinghai Lu | 08803ef | 2012-02-23 23:46:56 -0800 | [diff] [blame] | 1919 | DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_NETMOS, PCI_ANY_ID, |
| 1920 | PCI_CLASS_COMMUNICATION_SERIAL, 8, quirk_netmos); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1921 | |
Alex Williamson | da2d03e | 2015-09-15 22:24:46 -0600 | [diff] [blame] | 1922 | /* |
| 1923 | * Quirk non-zero PCI functions to route VPD access through function 0 for |
| 1924 | * devices that share VPD resources between functions. The functions are |
| 1925 | * expected to be identical devices. |
| 1926 | */ |
Mark Rustad | 7aa6ca4 | 2015-07-13 11:40:07 -0700 | [diff] [blame] | 1927 | static void quirk_f0_vpd_link(struct pci_dev *dev) |
| 1928 | { |
Alex Williamson | da2d03e | 2015-09-15 22:24:46 -0600 | [diff] [blame] | 1929 | struct pci_dev *f0; |
| 1930 | |
| 1931 | if (!PCI_FUNC(dev->devfn)) |
Mark Rustad | 7aa6ca4 | 2015-07-13 11:40:07 -0700 | [diff] [blame] | 1932 | return; |
Alex Williamson | da2d03e | 2015-09-15 22:24:46 -0600 | [diff] [blame] | 1933 | |
| 1934 | f0 = pci_get_slot(dev->bus, PCI_DEVFN(PCI_SLOT(dev->devfn), 0)); |
| 1935 | if (!f0) |
| 1936 | return; |
| 1937 | |
| 1938 | if (f0->vpd && dev->class == f0->class && |
| 1939 | dev->vendor == f0->vendor && dev->device == f0->device) |
| 1940 | dev->dev_flags |= PCI_DEV_FLAGS_VPD_REF_F0; |
| 1941 | |
| 1942 | pci_dev_put(f0); |
Mark Rustad | 7aa6ca4 | 2015-07-13 11:40:07 -0700 | [diff] [blame] | 1943 | } |
| 1944 | DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, |
| 1945 | PCI_CLASS_NETWORK_ETHERNET, 8, quirk_f0_vpd_link); |
| 1946 | |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 1947 | static void quirk_e100_interrupt(struct pci_dev *dev) |
Bjorn Helgaas | 16a7474 | 2006-04-05 08:47:00 -0400 | [diff] [blame] | 1948 | { |
Ivan Kokshaysky | e64aecc | 2007-12-18 00:39:27 +0300 | [diff] [blame] | 1949 | u16 command, pmcsr; |
Bjorn Helgaas | 16a7474 | 2006-04-05 08:47:00 -0400 | [diff] [blame] | 1950 | u8 __iomem *csr; |
| 1951 | u8 cmd_hi; |
| 1952 | |
| 1953 | switch (dev->device) { |
| 1954 | /* PCI IDs taken from drivers/net/e100.c */ |
| 1955 | case 0x1029: |
| 1956 | case 0x1030 ... 0x1034: |
| 1957 | case 0x1038 ... 0x103E: |
| 1958 | case 0x1050 ... 0x1057: |
| 1959 | case 0x1059: |
| 1960 | case 0x1064 ... 0x106B: |
| 1961 | case 0x1091 ... 0x1095: |
| 1962 | case 0x1209: |
| 1963 | case 0x1229: |
| 1964 | case 0x2449: |
| 1965 | case 0x2459: |
| 1966 | case 0x245D: |
| 1967 | case 0x27DC: |
| 1968 | break; |
| 1969 | default: |
| 1970 | return; |
| 1971 | } |
| 1972 | |
| 1973 | /* |
| 1974 | * Some firmware hands off the e100 with interrupts enabled, |
| 1975 | * which can cause a flood of interrupts if packets are |
| 1976 | * received before the driver attaches to the device. So |
| 1977 | * disable all e100 interrupts here. The driver will |
| 1978 | * re-enable them when it's ready. |
| 1979 | */ |
| 1980 | pci_read_config_word(dev, PCI_COMMAND, &command); |
Bjorn Helgaas | 16a7474 | 2006-04-05 08:47:00 -0400 | [diff] [blame] | 1981 | |
Benjamin Herrenschmidt | 1bef7dc | 2007-09-29 09:06:21 +1000 | [diff] [blame] | 1982 | if (!(command & PCI_COMMAND_MEMORY) || !pci_resource_start(dev, 0)) |
Bjorn Helgaas | 16a7474 | 2006-04-05 08:47:00 -0400 | [diff] [blame] | 1983 | return; |
| 1984 | |
Ivan Kokshaysky | e64aecc | 2007-12-18 00:39:27 +0300 | [diff] [blame] | 1985 | /* |
| 1986 | * Check that the device is in the D0 power state. If it's not, |
| 1987 | * there is no point to look any further. |
| 1988 | */ |
Yijing Wang | 728cdb7 | 2013-06-18 16:22:14 +0800 | [diff] [blame] | 1989 | if (dev->pm_cap) { |
| 1990 | pci_read_config_word(dev, dev->pm_cap + PCI_PM_CTRL, &pmcsr); |
Ivan Kokshaysky | e64aecc | 2007-12-18 00:39:27 +0300 | [diff] [blame] | 1991 | if ((pmcsr & PCI_PM_CTRL_STATE_MASK) != PCI_D0) |
| 1992 | return; |
| 1993 | } |
| 1994 | |
Benjamin Herrenschmidt | 1bef7dc | 2007-09-29 09:06:21 +1000 | [diff] [blame] | 1995 | /* Convert from PCI bus to resource space. */ |
| 1996 | csr = ioremap(pci_resource_start(dev, 0), 8); |
Bjorn Helgaas | 16a7474 | 2006-04-05 08:47:00 -0400 | [diff] [blame] | 1997 | if (!csr) { |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 1998 | dev_warn(&dev->dev, "Can't map e100 registers\n"); |
Bjorn Helgaas | 16a7474 | 2006-04-05 08:47:00 -0400 | [diff] [blame] | 1999 | return; |
| 2000 | } |
| 2001 | |
| 2002 | cmd_hi = readb(csr + 3); |
| 2003 | if (cmd_hi == 0) { |
Ryan Desfosses | 227f064 | 2014-04-18 20:13:50 -0400 | [diff] [blame] | 2004 | dev_warn(&dev->dev, "Firmware left e100 interrupts enabled; disabling\n"); |
Bjorn Helgaas | 16a7474 | 2006-04-05 08:47:00 -0400 | [diff] [blame] | 2005 | writeb(1, csr + 3); |
| 2006 | } |
| 2007 | |
| 2008 | iounmap(csr); |
| 2009 | } |
Yinghai Lu | 4c5b28e | 2012-02-23 23:46:57 -0800 | [diff] [blame] | 2010 | DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, |
| 2011 | PCI_CLASS_NETWORK_ETHERNET, 8, quirk_e100_interrupt); |
Ivan Kokshaysky | a5312e2 | 2005-11-01 01:43:56 +0300 | [diff] [blame] | 2012 | |
Alexander Duyck | 649426e | 2009-03-05 13:57:28 -0500 | [diff] [blame] | 2013 | /* |
| 2014 | * The 82575 and 82598 may experience data corruption issues when transitioning |
| 2015 | * out of L0S. To prevent this we need to disable L0S on the pci-e link |
| 2016 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 2017 | static void quirk_disable_aspm_l0s(struct pci_dev *dev) |
Alexander Duyck | 649426e | 2009-03-05 13:57:28 -0500 | [diff] [blame] | 2018 | { |
| 2019 | dev_info(&dev->dev, "Disabling L0s\n"); |
| 2020 | pci_disable_link_state(dev, PCIE_LINK_STATE_L0S); |
| 2021 | } |
| 2022 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a7, quirk_disable_aspm_l0s); |
| 2023 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10a9, quirk_disable_aspm_l0s); |
| 2024 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10b6, quirk_disable_aspm_l0s); |
| 2025 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c6, quirk_disable_aspm_l0s); |
| 2026 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c7, quirk_disable_aspm_l0s); |
| 2027 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10c8, quirk_disable_aspm_l0s); |
| 2028 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10d6, quirk_disable_aspm_l0s); |
| 2029 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10db, quirk_disable_aspm_l0s); |
| 2030 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10dd, quirk_disable_aspm_l0s); |
| 2031 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10e1, quirk_disable_aspm_l0s); |
| 2032 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10ec, quirk_disable_aspm_l0s); |
| 2033 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f1, quirk_disable_aspm_l0s); |
| 2034 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x10f4, quirk_disable_aspm_l0s); |
| 2035 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x1508, quirk_disable_aspm_l0s); |
| 2036 | |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 2037 | static void fixup_rev1_53c810(struct pci_dev *dev) |
Ivan Kokshaysky | a5312e2 | 2005-11-01 01:43:56 +0300 | [diff] [blame] | 2038 | { |
Bjorn Helgaas | e6323e3 | 2015-06-19 15:36:45 -0500 | [diff] [blame] | 2039 | u32 class = dev->class; |
| 2040 | |
| 2041 | /* |
| 2042 | * rev 1 ncr53c810 chips don't set the class at all which means |
Ivan Kokshaysky | a5312e2 | 2005-11-01 01:43:56 +0300 | [diff] [blame] | 2043 | * they don't get their resources remapped. Fix that here. |
| 2044 | */ |
Bjorn Helgaas | e6323e3 | 2015-06-19 15:36:45 -0500 | [diff] [blame] | 2045 | if (class) |
| 2046 | return; |
Ivan Kokshaysky | a5312e2 | 2005-11-01 01:43:56 +0300 | [diff] [blame] | 2047 | |
Bjorn Helgaas | e6323e3 | 2015-06-19 15:36:45 -0500 | [diff] [blame] | 2048 | dev->class = PCI_CLASS_STORAGE_SCSI << 8; |
| 2049 | dev_info(&dev->dev, "NCR 53c810 rev 1 PCI class overridden (%#08x -> %#08x)\n", |
| 2050 | class, dev->class); |
Ivan Kokshaysky | a5312e2 | 2005-11-01 01:43:56 +0300 | [diff] [blame] | 2051 | } |
| 2052 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810); |
| 2053 | |
Daniel Yeisley | 9d26512 | 2005-12-05 07:06:43 -0500 | [diff] [blame] | 2054 | /* Enable 1k I/O space granularity on the Intel P64H2 */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 2055 | static void quirk_p64h2_1k_io(struct pci_dev *dev) |
Daniel Yeisley | 9d26512 | 2005-12-05 07:06:43 -0500 | [diff] [blame] | 2056 | { |
| 2057 | u16 en1k; |
Daniel Yeisley | 9d26512 | 2005-12-05 07:06:43 -0500 | [diff] [blame] | 2058 | |
| 2059 | pci_read_config_word(dev, 0x40, &en1k); |
| 2060 | |
| 2061 | if (en1k & 0x200) { |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 2062 | dev_info(&dev->dev, "Enable I/O Space to 1KB granularity\n"); |
Bjorn Helgaas | 2b28ae1 | 2012-07-09 13:38:57 -0600 | [diff] [blame] | 2063 | dev->io_window_1k = 1; |
Daniel Yeisley | 9d26512 | 2005-12-05 07:06:43 -0500 | [diff] [blame] | 2064 | } |
| 2065 | } |
| 2066 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io); |
| 2067 | |
Brice Goglin | cf34a8e | 2006-06-13 14:35:42 -0400 | [diff] [blame] | 2068 | /* Under some circumstances, AER is not linked with extended capabilities. |
| 2069 | * Force it to be linked by setting the corresponding control bit in the |
| 2070 | * config space. |
| 2071 | */ |
Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 2072 | static void quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev) |
Brice Goglin | cf34a8e | 2006-06-13 14:35:42 -0400 | [diff] [blame] | 2073 | { |
| 2074 | uint8_t b; |
| 2075 | if (pci_read_config_byte(dev, 0xf41, &b) == 0) { |
| 2076 | if (!(b & 0x20)) { |
| 2077 | pci_write_config_byte(dev, 0xf41, b | 0x20); |
Ryan Desfosses | 227f064 | 2014-04-18 20:13:50 -0400 | [diff] [blame] | 2078 | dev_info(&dev->dev, "Linking AER extended capability\n"); |
Brice Goglin | cf34a8e | 2006-06-13 14:35:42 -0400 | [diff] [blame] | 2079 | } |
| 2080 | } |
| 2081 | } |
| 2082 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE, |
| 2083 | quirk_nvidia_ck804_pcie_aer_ext_cap); |
Rafael J. Wysocki | e1a2a51 | 2008-05-15 21:51:31 +0200 | [diff] [blame] | 2084 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE, |
Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 2085 | quirk_nvidia_ck804_pcie_aer_ext_cap); |
Brice Goglin | cf34a8e | 2006-06-13 14:35:42 -0400 | [diff] [blame] | 2086 | |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 2087 | static void quirk_via_cx700_pci_parking_caching(struct pci_dev *dev) |
Tim Yamin | 53a9bf4 | 2007-11-01 23:14:54 +0000 | [diff] [blame] | 2088 | { |
| 2089 | /* |
| 2090 | * Disable PCI Bus Parking and PCI Master read caching on CX700 |
| 2091 | * which causes unspecified timing errors with a VT6212L on the PCI |
Tim Yamin | ca84639 | 2010-03-19 14:22:58 -0700 | [diff] [blame] | 2092 | * bus leading to USB2.0 packet loss. |
| 2093 | * |
| 2094 | * This quirk is only enabled if a second (on the external PCI bus) |
| 2095 | * VT6212L is found -- the CX700 core itself also contains a USB |
| 2096 | * host controller with the same PCI ID as the VT6212L. |
Tim Yamin | 53a9bf4 | 2007-11-01 23:14:54 +0000 | [diff] [blame] | 2097 | */ |
| 2098 | |
Tim Yamin | ca84639 | 2010-03-19 14:22:58 -0700 | [diff] [blame] | 2099 | /* Count VT6212L instances */ |
| 2100 | struct pci_dev *p = pci_get_device(PCI_VENDOR_ID_VIA, |
| 2101 | PCI_DEVICE_ID_VIA_8235_USB_2, NULL); |
Tim Yamin | 53a9bf4 | 2007-11-01 23:14:54 +0000 | [diff] [blame] | 2102 | uint8_t b; |
Tim Yamin | ca84639 | 2010-03-19 14:22:58 -0700 | [diff] [blame] | 2103 | |
| 2104 | /* p should contain the first (internal) VT6212L -- see if we have |
| 2105 | an external one by searching again */ |
| 2106 | p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235_USB_2, p); |
| 2107 | if (!p) |
| 2108 | return; |
| 2109 | pci_dev_put(p); |
| 2110 | |
Tim Yamin | 53a9bf4 | 2007-11-01 23:14:54 +0000 | [diff] [blame] | 2111 | if (pci_read_config_byte(dev, 0x76, &b) == 0) { |
| 2112 | if (b & 0x40) { |
| 2113 | /* Turn off PCI Bus Parking */ |
| 2114 | pci_write_config_byte(dev, 0x76, b ^ 0x40); |
| 2115 | |
Ryan Desfosses | 227f064 | 2014-04-18 20:13:50 -0400 | [diff] [blame] | 2116 | dev_info(&dev->dev, "Disabling VIA CX700 PCI parking\n"); |
Tim Yamin | bc04327 | 2008-03-30 20:58:59 +0100 | [diff] [blame] | 2117 | } |
| 2118 | } |
| 2119 | |
| 2120 | if (pci_read_config_byte(dev, 0x72, &b) == 0) { |
| 2121 | if (b != 0) { |
Tim Yamin | 53a9bf4 | 2007-11-01 23:14:54 +0000 | [diff] [blame] | 2122 | /* Turn off PCI Master read caching */ |
| 2123 | pci_write_config_byte(dev, 0x72, 0x0); |
Tim Yamin | bc04327 | 2008-03-30 20:58:59 +0100 | [diff] [blame] | 2124 | |
| 2125 | /* Set PCI Master Bus time-out to "1x16 PCLK" */ |
Tim Yamin | 53a9bf4 | 2007-11-01 23:14:54 +0000 | [diff] [blame] | 2126 | pci_write_config_byte(dev, 0x75, 0x1); |
Tim Yamin | bc04327 | 2008-03-30 20:58:59 +0100 | [diff] [blame] | 2127 | |
| 2128 | /* Disable "Read FIFO Timer" */ |
Tim Yamin | 53a9bf4 | 2007-11-01 23:14:54 +0000 | [diff] [blame] | 2129 | pci_write_config_byte(dev, 0x77, 0x0); |
| 2130 | |
Ryan Desfosses | 227f064 | 2014-04-18 20:13:50 -0400 | [diff] [blame] | 2131 | dev_info(&dev->dev, "Disabling VIA CX700 PCI caching\n"); |
Tim Yamin | 53a9bf4 | 2007-11-01 23:14:54 +0000 | [diff] [blame] | 2132 | } |
| 2133 | } |
| 2134 | } |
Tim Yamin | ca84639 | 2010-03-19 14:22:58 -0700 | [diff] [blame] | 2135 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, 0x324e, quirk_via_cx700_pci_parking_caching); |
Tim Yamin | 53a9bf4 | 2007-11-01 23:14:54 +0000 | [diff] [blame] | 2136 | |
Benjamin Li | 99cb233d | 2008-07-02 10:59:04 -0700 | [diff] [blame] | 2137 | /* |
| 2138 | * For Broadcom 5706, 5708, 5709 rev. A nics, any read beyond the |
| 2139 | * VPD end tag will hang the device. This problem was initially |
| 2140 | * observed when a vpd entry was created in sysfs |
| 2141 | * ('/sys/bus/pci/devices/<id>/vpd'). A read to this sysfs entry |
| 2142 | * will dump 32k of data. Reading a full 32k will cause an access |
| 2143 | * beyond the VPD end tag causing the device to hang. Once the device |
| 2144 | * is hung, the bnx2 driver will not be able to reset the device. |
| 2145 | * We believe that it is legal to read beyond the end tag and |
| 2146 | * therefore the solution is to limit the read/write length. |
| 2147 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 2148 | static void quirk_brcm_570x_limit_vpd(struct pci_dev *dev) |
Benjamin Li | 99cb233d | 2008-07-02 10:59:04 -0700 | [diff] [blame] | 2149 | { |
Eric Dumazet | 9d82d8e | 2008-07-31 20:27:31 +0200 | [diff] [blame] | 2150 | /* |
Dean Hildebrand | 35405f2 | 2008-08-07 17:31:45 -0700 | [diff] [blame] | 2151 | * Only disable the VPD capability for 5706, 5706S, 5708, |
| 2152 | * 5708S and 5709 rev. A |
Eric Dumazet | 9d82d8e | 2008-07-31 20:27:31 +0200 | [diff] [blame] | 2153 | */ |
Benjamin Li | 99cb233d | 2008-07-02 10:59:04 -0700 | [diff] [blame] | 2154 | if ((dev->device == PCI_DEVICE_ID_NX2_5706) || |
Dean Hildebrand | 35405f2 | 2008-08-07 17:31:45 -0700 | [diff] [blame] | 2155 | (dev->device == PCI_DEVICE_ID_NX2_5706S) || |
Benjamin Li | 99cb233d | 2008-07-02 10:59:04 -0700 | [diff] [blame] | 2156 | (dev->device == PCI_DEVICE_ID_NX2_5708) || |
Eric Dumazet | 9d82d8e | 2008-07-31 20:27:31 +0200 | [diff] [blame] | 2157 | (dev->device == PCI_DEVICE_ID_NX2_5708S) || |
Benjamin Li | 99cb233d | 2008-07-02 10:59:04 -0700 | [diff] [blame] | 2158 | ((dev->device == PCI_DEVICE_ID_NX2_5709) && |
| 2159 | (dev->revision & 0xf0) == 0x0)) { |
| 2160 | if (dev->vpd) |
| 2161 | dev->vpd->len = 0x80; |
| 2162 | } |
| 2163 | } |
| 2164 | |
Yu Zhao | bffadff | 2008-10-28 14:44:11 +0800 | [diff] [blame] | 2165 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, |
| 2166 | PCI_DEVICE_ID_NX2_5706, |
| 2167 | quirk_brcm_570x_limit_vpd); |
| 2168 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, |
| 2169 | PCI_DEVICE_ID_NX2_5706S, |
| 2170 | quirk_brcm_570x_limit_vpd); |
| 2171 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, |
| 2172 | PCI_DEVICE_ID_NX2_5708, |
| 2173 | quirk_brcm_570x_limit_vpd); |
| 2174 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, |
| 2175 | PCI_DEVICE_ID_NX2_5708S, |
| 2176 | quirk_brcm_570x_limit_vpd); |
| 2177 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, |
| 2178 | PCI_DEVICE_ID_NX2_5709, |
| 2179 | quirk_brcm_570x_limit_vpd); |
| 2180 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, |
| 2181 | PCI_DEVICE_ID_NX2_5709S, |
| 2182 | quirk_brcm_570x_limit_vpd); |
Benjamin Li | 99cb233d | 2008-07-02 10:59:04 -0700 | [diff] [blame] | 2183 | |
Myron Stowe | 25e742b | 2012-07-09 15:36:14 -0600 | [diff] [blame] | 2184 | static void quirk_brcm_5719_limit_mrrs(struct pci_dev *dev) |
Matt Carlson | 0b47150 | 2012-02-27 09:44:48 +0000 | [diff] [blame] | 2185 | { |
| 2186 | u32 rev; |
| 2187 | |
| 2188 | pci_read_config_dword(dev, 0xf4, &rev); |
| 2189 | |
| 2190 | /* Only CAP the MRRS if the device is a 5719 A0 */ |
| 2191 | if (rev == 0x05719000) { |
| 2192 | int readrq = pcie_get_readrq(dev); |
| 2193 | if (readrq > 2048) |
| 2194 | pcie_set_readrq(dev, 2048); |
| 2195 | } |
| 2196 | } |
| 2197 | |
| 2198 | DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_BROADCOM, |
| 2199 | PCI_DEVICE_ID_TIGON3_5719, |
| 2200 | quirk_brcm_5719_limit_mrrs); |
| 2201 | |
Michal Miroslaw | 26c56dc | 2009-05-12 13:49:26 -0700 | [diff] [blame] | 2202 | /* Originally in EDAC sources for i82875P: |
| 2203 | * Intel tells BIOS developers to hide device 6 which |
| 2204 | * configures the overflow device access containing |
| 2205 | * the DRBs - this is where we expose device 6. |
| 2206 | * http://www.x86-secret.com/articles/tweak/pat/patsecrets-2.htm |
| 2207 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 2208 | static void quirk_unhide_mch_dev6(struct pci_dev *dev) |
Michal Miroslaw | 26c56dc | 2009-05-12 13:49:26 -0700 | [diff] [blame] | 2209 | { |
| 2210 | u8 reg; |
| 2211 | |
| 2212 | if (pci_read_config_byte(dev, 0xF4, ®) == 0 && !(reg & 0x02)) { |
| 2213 | dev_info(&dev->dev, "Enabling MCH 'Overflow' Device\n"); |
| 2214 | pci_write_config_byte(dev, 0xF4, reg | 0x02); |
| 2215 | } |
| 2216 | } |
| 2217 | |
| 2218 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82865_HB, |
| 2219 | quirk_unhide_mch_dev6); |
| 2220 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82875_HB, |
| 2221 | quirk_unhide_mch_dev6); |
| 2222 | |
Chris Metcalf | 1296226 | 2012-04-07 17:10:17 -0400 | [diff] [blame] | 2223 | #ifdef CONFIG_TILEPRO |
Chris Metcalf | f02cbbe | 2010-11-02 12:05:10 -0400 | [diff] [blame] | 2224 | /* |
Chris Metcalf | 1296226 | 2012-04-07 17:10:17 -0400 | [diff] [blame] | 2225 | * The Tilera TILEmpower tilepro platform needs to set the link speed |
Chris Metcalf | f02cbbe | 2010-11-02 12:05:10 -0400 | [diff] [blame] | 2226 | * to 2.5GT(Giga-Transfers)/s (Gen 1). The default link speed |
| 2227 | * setting is 5GT/s (Gen 2). 0x98 is the Link Control2 PCIe |
| 2228 | * capability register of the PEX8624 PCIe switch. The switch |
| 2229 | * supports link speed auto negotiation, but falsely sets |
| 2230 | * the link speed to 5GT/s. |
| 2231 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 2232 | static void quirk_tile_plx_gen1(struct pci_dev *dev) |
Chris Metcalf | f02cbbe | 2010-11-02 12:05:10 -0400 | [diff] [blame] | 2233 | { |
| 2234 | if (tile_plx_gen1) { |
| 2235 | pci_write_config_dword(dev, 0x98, 0x1); |
| 2236 | mdelay(50); |
| 2237 | } |
| 2238 | } |
| 2239 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8624, quirk_tile_plx_gen1); |
Chris Metcalf | 1296226 | 2012-04-07 17:10:17 -0400 | [diff] [blame] | 2240 | #endif /* CONFIG_TILEPRO */ |
Michal Miroslaw | 26c56dc | 2009-05-12 13:49:26 -0700 | [diff] [blame] | 2241 | |
Brice Goglin | 3f79e10 | 2006-08-31 01:54:56 -0400 | [diff] [blame] | 2242 | #ifdef CONFIG_PCI_MSI |
Tejun Heo | ebdf7d3 | 2007-05-31 00:40:48 -0700 | [diff] [blame] | 2243 | /* Some chipsets do not support MSI. We cannot easily rely on setting |
| 2244 | * PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 2245 | * some other buses controlled by the chipset even if Linux is not |
| 2246 | * aware of it. Instead of setting the flag on all buses in the |
Tejun Heo | ebdf7d3 | 2007-05-31 00:40:48 -0700 | [diff] [blame] | 2247 | * machine, simply disable MSI globally. |
Brice Goglin | 3f79e10 | 2006-08-31 01:54:56 -0400 | [diff] [blame] | 2248 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 2249 | static void quirk_disable_all_msi(struct pci_dev *dev) |
Brice Goglin | 3f79e10 | 2006-08-31 01:54:56 -0400 | [diff] [blame] | 2250 | { |
Michael Ellerman | 88187df | 2007-01-25 19:34:07 +1100 | [diff] [blame] | 2251 | pci_no_msi(); |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 2252 | dev_warn(&dev->dev, "MSI quirk detected; MSI disabled\n"); |
Brice Goglin | 3f79e10 | 2006-08-31 01:54:56 -0400 | [diff] [blame] | 2253 | } |
Tejun Heo | ebdf7d3 | 2007-05-31 00:40:48 -0700 | [diff] [blame] | 2254 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_GCNB_LE, quirk_disable_all_msi); |
| 2255 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS400_200, quirk_disable_all_msi); |
| 2256 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RS480, quirk_disable_all_msi); |
Tejun Heo | 66d715c | 2008-07-04 09:59:32 -0700 | [diff] [blame] | 2257 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3336, quirk_disable_all_msi); |
Jay Cliburn | 184b812 | 2007-05-26 17:01:04 -0500 | [diff] [blame] | 2258 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi); |
Thomas Renninger | 162dedd | 2009-04-03 06:34:00 -0700 | [diff] [blame] | 2259 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3364, quirk_disable_all_msi); |
Tejun Heo | 549e156 | 2010-05-23 10:22:55 +0200 | [diff] [blame] | 2260 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8380_0, quirk_disable_all_msi); |
Ondrej Zary | 10b4ad1 | 2015-09-24 17:02:07 -0500 | [diff] [blame] | 2261 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, 0x0761, quirk_disable_all_msi); |
Brice Goglin | 3f79e10 | 2006-08-31 01:54:56 -0400 | [diff] [blame] | 2262 | |
| 2263 | /* Disable MSI on chipsets that are known to not support it */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 2264 | static void quirk_disable_msi(struct pci_dev *dev) |
Brice Goglin | 3f79e10 | 2006-08-31 01:54:56 -0400 | [diff] [blame] | 2265 | { |
| 2266 | if (dev->subordinate) { |
Ryan Desfosses | 227f064 | 2014-04-18 20:13:50 -0400 | [diff] [blame] | 2267 | dev_warn(&dev->dev, "MSI quirk detected; subordinate MSI disabled\n"); |
Brice Goglin | 3f79e10 | 2006-08-31 01:54:56 -0400 | [diff] [blame] | 2268 | dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI; |
| 2269 | } |
| 2270 | } |
| 2271 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_msi); |
Matthew Wilcox | 134b345 | 2010-03-24 07:11:01 -0600 | [diff] [blame] | 2272 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, 0xa238, quirk_disable_msi); |
Alex Deucher | 9313ff4 | 2010-05-18 10:42:53 -0400 | [diff] [blame] | 2273 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x5a3f, quirk_disable_msi); |
Brice Goglin | 6397c75 | 2006-08-31 01:55:32 -0400 | [diff] [blame] | 2274 | |
Clemens Ladisch | aff6136 | 2010-05-26 12:21:10 +0200 | [diff] [blame] | 2275 | /* |
| 2276 | * The APC bridge device in AMD 780 family northbridges has some random |
| 2277 | * OEM subsystem ID in its vendor ID register (erratum 18), so instead |
| 2278 | * we use the possible vendor/device IDs of the host bridge for the |
| 2279 | * declared quirk, and search for the APC bridge by slot number. |
| 2280 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 2281 | static void quirk_amd_780_apc_msi(struct pci_dev *host_bridge) |
Clemens Ladisch | aff6136 | 2010-05-26 12:21:10 +0200 | [diff] [blame] | 2282 | { |
| 2283 | struct pci_dev *apc_bridge; |
| 2284 | |
| 2285 | apc_bridge = pci_get_slot(host_bridge->bus, PCI_DEVFN(1, 0)); |
| 2286 | if (apc_bridge) { |
| 2287 | if (apc_bridge->device == 0x9602) |
| 2288 | quirk_disable_msi(apc_bridge); |
| 2289 | pci_dev_put(apc_bridge); |
| 2290 | } |
| 2291 | } |
| 2292 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x9600, quirk_amd_780_apc_msi); |
| 2293 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x9601, quirk_amd_780_apc_msi); |
| 2294 | |
Brice Goglin | 6397c75 | 2006-08-31 01:55:32 -0400 | [diff] [blame] | 2295 | /* Go through the list of Hypertransport capabilities and |
| 2296 | * return 1 if a HT MSI capability is found and enabled */ |
Myron Stowe | 25e742b | 2012-07-09 15:36:14 -0600 | [diff] [blame] | 2297 | static int msi_ht_cap_enabled(struct pci_dev *dev) |
Brice Goglin | 6397c75 | 2006-08-31 01:55:32 -0400 | [diff] [blame] | 2298 | { |
Wei Yang | fff905f | 2015-06-30 09:16:41 +0800 | [diff] [blame] | 2299 | int pos, ttl = PCI_FIND_CAP_TTL; |
Michael Ellerman | 7a38050 | 2006-11-22 18:26:21 +1100 | [diff] [blame] | 2300 | |
| 2301 | pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING); |
| 2302 | while (pos && ttl--) { |
| 2303 | u8 flags; |
| 2304 | |
| 2305 | if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS, |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 2306 | &flags) == 0) { |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 2307 | dev_info(&dev->dev, "Found %s HT MSI Mapping\n", |
Michael Ellerman | 7a38050 | 2006-11-22 18:26:21 +1100 | [diff] [blame] | 2308 | flags & HT_MSI_FLAGS_ENABLE ? |
bjorn.helgaas@hp.com | f0fda80 | 2007-12-17 14:09:39 -0700 | [diff] [blame] | 2309 | "enabled" : "disabled"); |
Michael Ellerman | 7a38050 | 2006-11-22 18:26:21 +1100 | [diff] [blame] | 2310 | return (flags & HT_MSI_FLAGS_ENABLE) != 0; |
Brice Goglin | 6397c75 | 2006-08-31 01:55:32 -0400 | [diff] [blame] | 2311 | } |
Michael Ellerman | 7a38050 | 2006-11-22 18:26:21 +1100 | [diff] [blame] | 2312 | |
| 2313 | pos = pci_find_next_ht_capability(dev, pos, |
| 2314 | HT_CAPTYPE_MSI_MAPPING); |
Brice Goglin | 6397c75 | 2006-08-31 01:55:32 -0400 | [diff] [blame] | 2315 | } |
| 2316 | return 0; |
| 2317 | } |
| 2318 | |
| 2319 | /* Check the hypertransport MSI mapping to know whether MSI is enabled or not */ |
Myron Stowe | 25e742b | 2012-07-09 15:36:14 -0600 | [diff] [blame] | 2320 | static void quirk_msi_ht_cap(struct pci_dev *dev) |
Brice Goglin | 6397c75 | 2006-08-31 01:55:32 -0400 | [diff] [blame] | 2321 | { |
| 2322 | if (dev->subordinate && !msi_ht_cap_enabled(dev)) { |
Ryan Desfosses | 227f064 | 2014-04-18 20:13:50 -0400 | [diff] [blame] | 2323 | dev_warn(&dev->dev, "MSI quirk detected; subordinate MSI disabled\n"); |
Brice Goglin | 6397c75 | 2006-08-31 01:55:32 -0400 | [diff] [blame] | 2324 | dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI; |
| 2325 | } |
| 2326 | } |
| 2327 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2000_PCIE, |
| 2328 | quirk_msi_ht_cap); |
Sebastien Dugue | 6bae1d9 | 2007-12-13 16:09:25 -0800 | [diff] [blame] | 2329 | |
Brice Goglin | 6397c75 | 2006-08-31 01:55:32 -0400 | [diff] [blame] | 2330 | /* The nVidia CK804 chipset may have 2 HT MSI mappings. |
| 2331 | * MSI are supported if the MSI capability set in any of these mappings. |
| 2332 | */ |
Myron Stowe | 25e742b | 2012-07-09 15:36:14 -0600 | [diff] [blame] | 2333 | static void quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev) |
Brice Goglin | 6397c75 | 2006-08-31 01:55:32 -0400 | [diff] [blame] | 2334 | { |
| 2335 | struct pci_dev *pdev; |
| 2336 | |
| 2337 | if (!dev->subordinate) |
| 2338 | return; |
| 2339 | |
| 2340 | /* check HT MSI cap on this chipset and the root one. |
| 2341 | * a single one having MSI is enough to be sure that MSI are supported. |
| 2342 | */ |
Alan Cox | 11f242f | 2006-10-10 14:39:00 -0700 | [diff] [blame] | 2343 | pdev = pci_get_slot(dev->bus, 0); |
Jesper Juhl | 9ac0ce8 | 2006-12-04 15:14:48 -0800 | [diff] [blame] | 2344 | if (!pdev) |
| 2345 | return; |
David Rientjes | 0c875c2 | 2006-12-03 11:55:34 -0800 | [diff] [blame] | 2346 | if (!msi_ht_cap_enabled(dev) && !msi_ht_cap_enabled(pdev)) { |
Ryan Desfosses | 227f064 | 2014-04-18 20:13:50 -0400 | [diff] [blame] | 2347 | dev_warn(&dev->dev, "MSI quirk detected; subordinate MSI disabled\n"); |
Brice Goglin | 6397c75 | 2006-08-31 01:55:32 -0400 | [diff] [blame] | 2348 | dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI; |
| 2349 | } |
Alan Cox | 11f242f | 2006-10-10 14:39:00 -0700 | [diff] [blame] | 2350 | pci_dev_put(pdev); |
Brice Goglin | 6397c75 | 2006-08-31 01:55:32 -0400 | [diff] [blame] | 2351 | } |
| 2352 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE, |
| 2353 | quirk_nvidia_ck804_msi_ht_cap); |
David Miller | ba698ad | 2007-10-25 01:16:30 -0700 | [diff] [blame] | 2354 | |
Bjorn Helgaas | 415b6d0 | 2008-02-29 16:04:39 -0700 | [diff] [blame] | 2355 | /* Force enable MSI mapping capability on HT bridges */ |
Myron Stowe | 25e742b | 2012-07-09 15:36:14 -0600 | [diff] [blame] | 2356 | static void ht_enable_msi_mapping(struct pci_dev *dev) |
Peer Chen | 9dc625e | 2008-02-04 23:50:13 -0800 | [diff] [blame] | 2357 | { |
Wei Yang | fff905f | 2015-06-30 09:16:41 +0800 | [diff] [blame] | 2358 | int pos, ttl = PCI_FIND_CAP_TTL; |
Peer Chen | 9dc625e | 2008-02-04 23:50:13 -0800 | [diff] [blame] | 2359 | |
| 2360 | pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING); |
| 2361 | while (pos && ttl--) { |
| 2362 | u8 flags; |
| 2363 | |
| 2364 | if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS, |
| 2365 | &flags) == 0) { |
| 2366 | dev_info(&dev->dev, "Enabling HT MSI Mapping\n"); |
| 2367 | |
| 2368 | pci_write_config_byte(dev, pos + HT_MSI_FLAGS, |
| 2369 | flags | HT_MSI_FLAGS_ENABLE); |
| 2370 | } |
| 2371 | pos = pci_find_next_ht_capability(dev, pos, |
| 2372 | HT_CAPTYPE_MSI_MAPPING); |
| 2373 | } |
| 2374 | } |
Bjorn Helgaas | 415b6d0 | 2008-02-29 16:04:39 -0700 | [diff] [blame] | 2375 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS, |
| 2376 | PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB, |
| 2377 | ht_enable_msi_mapping); |
Peer Chen | 9dc625e | 2008-02-04 23:50:13 -0800 | [diff] [blame] | 2378 | |
Yinghai Lu | e0ae4f5 | 2009-02-17 20:40:09 -0800 | [diff] [blame] | 2379 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8132_BRIDGE, |
| 2380 | ht_enable_msi_mapping); |
| 2381 | |
Ben Hutchings | e4146bb | 2010-05-16 02:28:49 +0100 | [diff] [blame] | 2382 | /* The P5N32-SLI motherboards from Asus have a problem with msi |
Andreas Petlund | 75e07fc | 2008-11-20 20:42:25 -0800 | [diff] [blame] | 2383 | * for the MCP55 NIC. It is not yet determined whether the msi problem |
| 2384 | * also affects other devices. As for now, turn off msi for this device. |
| 2385 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 2386 | static void nvenet_msi_disable(struct pci_dev *dev) |
Andreas Petlund | 75e07fc | 2008-11-20 20:42:25 -0800 | [diff] [blame] | 2387 | { |
Jean Delvare | 9251bac | 2011-05-15 18:13:46 +0200 | [diff] [blame] | 2388 | const char *board_name = dmi_get_system_info(DMI_BOARD_NAME); |
| 2389 | |
| 2390 | if (board_name && |
| 2391 | (strstr(board_name, "P5N32-SLI PREMIUM") || |
| 2392 | strstr(board_name, "P5N32-E SLI"))) { |
Ryan Desfosses | 227f064 | 2014-04-18 20:13:50 -0400 | [diff] [blame] | 2393 | dev_info(&dev->dev, "Disabling msi for MCP55 NIC on P5N32-SLI\n"); |
Andreas Petlund | 75e07fc | 2008-11-20 20:42:25 -0800 | [diff] [blame] | 2394 | dev->no_msi = 1; |
| 2395 | } |
| 2396 | } |
| 2397 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA, |
| 2398 | PCI_DEVICE_ID_NVIDIA_NVENET_15, |
| 2399 | nvenet_msi_disable); |
| 2400 | |
Neil Horman | 66db60e | 2010-09-21 13:54:39 -0400 | [diff] [blame] | 2401 | /* |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 2402 | * Some versions of the MCP55 bridge from Nvidia have a legacy IRQ routing |
| 2403 | * config register. This register controls the routing of legacy |
| 2404 | * interrupts from devices that route through the MCP55. If this register |
| 2405 | * is misprogrammed, interrupts are only sent to the BSP, unlike |
| 2406 | * conventional systems where the IRQ is broadcast to all online CPUs. Not |
| 2407 | * having this register set properly prevents kdump from booting up |
| 2408 | * properly, so let's make sure that we have it set correctly. |
| 2409 | * Note that this is an undocumented register. |
Neil Horman | 66db60e | 2010-09-21 13:54:39 -0400 | [diff] [blame] | 2410 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 2411 | static void nvbridge_check_legacy_irq_routing(struct pci_dev *dev) |
Neil Horman | 66db60e | 2010-09-21 13:54:39 -0400 | [diff] [blame] | 2412 | { |
| 2413 | u32 cfg; |
| 2414 | |
Neil Horman | 49c2fa08 | 2010-12-08 09:47:48 -0500 | [diff] [blame] | 2415 | if (!pci_find_capability(dev, PCI_CAP_ID_HT)) |
| 2416 | return; |
| 2417 | |
Neil Horman | 66db60e | 2010-09-21 13:54:39 -0400 | [diff] [blame] | 2418 | pci_read_config_dword(dev, 0x74, &cfg); |
| 2419 | |
| 2420 | if (cfg & ((1 << 2) | (1 << 15))) { |
| 2421 | printk(KERN_INFO "Rewriting irq routing register on MCP55\n"); |
| 2422 | cfg &= ~((1 << 2) | (1 << 15)); |
| 2423 | pci_write_config_dword(dev, 0x74, cfg); |
| 2424 | } |
| 2425 | } |
| 2426 | |
| 2427 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA, |
| 2428 | PCI_DEVICE_ID_NVIDIA_MCP55_BRIDGE_V0, |
| 2429 | nvbridge_check_legacy_irq_routing); |
| 2430 | |
| 2431 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA, |
| 2432 | PCI_DEVICE_ID_NVIDIA_MCP55_BRIDGE_V4, |
| 2433 | nvbridge_check_legacy_irq_routing); |
| 2434 | |
Myron Stowe | 25e742b | 2012-07-09 15:36:14 -0600 | [diff] [blame] | 2435 | static int ht_check_msi_mapping(struct pci_dev *dev) |
Yinghai Lu | de74530 | 2009-03-20 19:29:41 -0700 | [diff] [blame] | 2436 | { |
Wei Yang | fff905f | 2015-06-30 09:16:41 +0800 | [diff] [blame] | 2437 | int pos, ttl = PCI_FIND_CAP_TTL; |
Yinghai Lu | de74530 | 2009-03-20 19:29:41 -0700 | [diff] [blame] | 2438 | int found = 0; |
| 2439 | |
| 2440 | /* check if there is HT MSI cap or enabled on this device */ |
| 2441 | pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING); |
| 2442 | while (pos && ttl--) { |
| 2443 | u8 flags; |
| 2444 | |
| 2445 | if (found < 1) |
| 2446 | found = 1; |
| 2447 | if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS, |
| 2448 | &flags) == 0) { |
| 2449 | if (flags & HT_MSI_FLAGS_ENABLE) { |
| 2450 | if (found < 2) { |
| 2451 | found = 2; |
| 2452 | break; |
| 2453 | } |
| 2454 | } |
| 2455 | } |
| 2456 | pos = pci_find_next_ht_capability(dev, pos, |
| 2457 | HT_CAPTYPE_MSI_MAPPING); |
| 2458 | } |
| 2459 | |
| 2460 | return found; |
| 2461 | } |
| 2462 | |
Myron Stowe | 25e742b | 2012-07-09 15:36:14 -0600 | [diff] [blame] | 2463 | static int host_bridge_with_leaf(struct pci_dev *host_bridge) |
Yinghai Lu | de74530 | 2009-03-20 19:29:41 -0700 | [diff] [blame] | 2464 | { |
| 2465 | struct pci_dev *dev; |
| 2466 | int pos; |
| 2467 | int i, dev_no; |
| 2468 | int found = 0; |
| 2469 | |
| 2470 | dev_no = host_bridge->devfn >> 3; |
| 2471 | for (i = dev_no + 1; i < 0x20; i++) { |
| 2472 | dev = pci_get_slot(host_bridge->bus, PCI_DEVFN(i, 0)); |
| 2473 | if (!dev) |
| 2474 | continue; |
| 2475 | |
| 2476 | /* found next host bridge ?*/ |
| 2477 | pos = pci_find_ht_capability(dev, HT_CAPTYPE_SLAVE); |
| 2478 | if (pos != 0) { |
| 2479 | pci_dev_put(dev); |
| 2480 | break; |
| 2481 | } |
| 2482 | |
| 2483 | if (ht_check_msi_mapping(dev)) { |
| 2484 | found = 1; |
| 2485 | pci_dev_put(dev); |
| 2486 | break; |
| 2487 | } |
| 2488 | pci_dev_put(dev); |
| 2489 | } |
| 2490 | |
| 2491 | return found; |
| 2492 | } |
| 2493 | |
Yinghai Lu | eeafda7 | 2009-03-29 12:30:05 -0700 | [diff] [blame] | 2494 | #define PCI_HT_CAP_SLAVE_CTRL0 4 /* link control */ |
| 2495 | #define PCI_HT_CAP_SLAVE_CTRL1 8 /* link control to */ |
| 2496 | |
Myron Stowe | 25e742b | 2012-07-09 15:36:14 -0600 | [diff] [blame] | 2497 | static int is_end_of_ht_chain(struct pci_dev *dev) |
Yinghai Lu | eeafda7 | 2009-03-29 12:30:05 -0700 | [diff] [blame] | 2498 | { |
| 2499 | int pos, ctrl_off; |
| 2500 | int end = 0; |
| 2501 | u16 flags, ctrl; |
| 2502 | |
| 2503 | pos = pci_find_ht_capability(dev, HT_CAPTYPE_SLAVE); |
| 2504 | |
| 2505 | if (!pos) |
| 2506 | goto out; |
| 2507 | |
| 2508 | pci_read_config_word(dev, pos + PCI_CAP_FLAGS, &flags); |
| 2509 | |
| 2510 | ctrl_off = ((flags >> 10) & 1) ? |
| 2511 | PCI_HT_CAP_SLAVE_CTRL0 : PCI_HT_CAP_SLAVE_CTRL1; |
| 2512 | pci_read_config_word(dev, pos + ctrl_off, &ctrl); |
| 2513 | |
| 2514 | if (ctrl & (1 << 6)) |
| 2515 | end = 1; |
| 2516 | |
| 2517 | out: |
| 2518 | return end; |
| 2519 | } |
| 2520 | |
Myron Stowe | 25e742b | 2012-07-09 15:36:14 -0600 | [diff] [blame] | 2521 | static void nv_ht_enable_msi_mapping(struct pci_dev *dev) |
Yinghai Lu | 1dec6b0 | 2009-02-23 11:51:59 -0800 | [diff] [blame] | 2522 | { |
| 2523 | struct pci_dev *host_bridge; |
| 2524 | int pos; |
| 2525 | int i, dev_no; |
| 2526 | int found = 0; |
| 2527 | |
| 2528 | dev_no = dev->devfn >> 3; |
| 2529 | for (i = dev_no; i >= 0; i--) { |
| 2530 | host_bridge = pci_get_slot(dev->bus, PCI_DEVFN(i, 0)); |
| 2531 | if (!host_bridge) |
| 2532 | continue; |
| 2533 | |
| 2534 | pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE); |
| 2535 | if (pos != 0) { |
| 2536 | found = 1; |
| 2537 | break; |
| 2538 | } |
| 2539 | pci_dev_put(host_bridge); |
| 2540 | } |
| 2541 | |
| 2542 | if (!found) |
| 2543 | return; |
| 2544 | |
Yinghai Lu | eeafda7 | 2009-03-29 12:30:05 -0700 | [diff] [blame] | 2545 | /* don't enable end_device/host_bridge with leaf directly here */ |
| 2546 | if (host_bridge == dev && is_end_of_ht_chain(host_bridge) && |
| 2547 | host_bridge_with_leaf(host_bridge)) |
Yinghai Lu | de74530 | 2009-03-20 19:29:41 -0700 | [diff] [blame] | 2548 | goto out; |
| 2549 | |
Yinghai Lu | 1dec6b0 | 2009-02-23 11:51:59 -0800 | [diff] [blame] | 2550 | /* root did that ! */ |
| 2551 | if (msi_ht_cap_enabled(host_bridge)) |
| 2552 | goto out; |
| 2553 | |
| 2554 | ht_enable_msi_mapping(dev); |
| 2555 | |
| 2556 | out: |
| 2557 | pci_dev_put(host_bridge); |
| 2558 | } |
| 2559 | |
Myron Stowe | 25e742b | 2012-07-09 15:36:14 -0600 | [diff] [blame] | 2560 | static void ht_disable_msi_mapping(struct pci_dev *dev) |
Yinghai Lu | 1dec6b0 | 2009-02-23 11:51:59 -0800 | [diff] [blame] | 2561 | { |
Wei Yang | fff905f | 2015-06-30 09:16:41 +0800 | [diff] [blame] | 2562 | int pos, ttl = PCI_FIND_CAP_TTL; |
Yinghai Lu | 1dec6b0 | 2009-02-23 11:51:59 -0800 | [diff] [blame] | 2563 | |
| 2564 | pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING); |
| 2565 | while (pos && ttl--) { |
| 2566 | u8 flags; |
| 2567 | |
| 2568 | if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS, |
| 2569 | &flags) == 0) { |
Prakash Punnoor | 6a958d5 | 2009-03-06 10:10:35 +0100 | [diff] [blame] | 2570 | dev_info(&dev->dev, "Disabling HT MSI Mapping\n"); |
Yinghai Lu | 1dec6b0 | 2009-02-23 11:51:59 -0800 | [diff] [blame] | 2571 | |
| 2572 | pci_write_config_byte(dev, pos + HT_MSI_FLAGS, |
| 2573 | flags & ~HT_MSI_FLAGS_ENABLE); |
| 2574 | } |
| 2575 | pos = pci_find_next_ht_capability(dev, pos, |
| 2576 | HT_CAPTYPE_MSI_MAPPING); |
| 2577 | } |
| 2578 | } |
| 2579 | |
Myron Stowe | 25e742b | 2012-07-09 15:36:14 -0600 | [diff] [blame] | 2580 | static void __nv_msi_ht_cap_quirk(struct pci_dev *dev, int all) |
Peer Chen | 9dc625e | 2008-02-04 23:50:13 -0800 | [diff] [blame] | 2581 | { |
| 2582 | struct pci_dev *host_bridge; |
Yinghai Lu | 1dec6b0 | 2009-02-23 11:51:59 -0800 | [diff] [blame] | 2583 | int pos; |
| 2584 | int found; |
| 2585 | |
Rafael J. Wysocki | 3d2a531 | 2010-07-23 22:19:55 +0200 | [diff] [blame] | 2586 | if (!pci_msi_enabled()) |
| 2587 | return; |
| 2588 | |
Yinghai Lu | 1dec6b0 | 2009-02-23 11:51:59 -0800 | [diff] [blame] | 2589 | /* check if there is HT MSI cap or enabled on this device */ |
| 2590 | found = ht_check_msi_mapping(dev); |
| 2591 | |
| 2592 | /* no HT MSI CAP */ |
| 2593 | if (found == 0) |
| 2594 | return; |
Peer Chen | 9dc625e | 2008-02-04 23:50:13 -0800 | [diff] [blame] | 2595 | |
| 2596 | /* |
| 2597 | * HT MSI mapping should be disabled on devices that are below |
| 2598 | * a non-Hypertransport host bridge. Locate the host bridge... |
| 2599 | */ |
| 2600 | host_bridge = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0)); |
| 2601 | if (host_bridge == NULL) { |
Ryan Desfosses | 227f064 | 2014-04-18 20:13:50 -0400 | [diff] [blame] | 2602 | dev_warn(&dev->dev, "nv_msi_ht_cap_quirk didn't locate host bridge\n"); |
Peer Chen | 9dc625e | 2008-02-04 23:50:13 -0800 | [diff] [blame] | 2603 | return; |
| 2604 | } |
| 2605 | |
| 2606 | pos = pci_find_ht_capability(host_bridge, HT_CAPTYPE_SLAVE); |
| 2607 | if (pos != 0) { |
| 2608 | /* Host bridge is to HT */ |
Yinghai Lu | 1dec6b0 | 2009-02-23 11:51:59 -0800 | [diff] [blame] | 2609 | if (found == 1) { |
| 2610 | /* it is not enabled, try to enable it */ |
Yinghai Lu | de74530 | 2009-03-20 19:29:41 -0700 | [diff] [blame] | 2611 | if (all) |
| 2612 | ht_enable_msi_mapping(dev); |
| 2613 | else |
| 2614 | nv_ht_enable_msi_mapping(dev); |
Yinghai Lu | 1dec6b0 | 2009-02-23 11:51:59 -0800 | [diff] [blame] | 2615 | } |
Myron Stowe | dff3aef | 2012-07-09 15:36:08 -0600 | [diff] [blame] | 2616 | goto out; |
Peer Chen | 9dc625e | 2008-02-04 23:50:13 -0800 | [diff] [blame] | 2617 | } |
| 2618 | |
Yinghai Lu | 1dec6b0 | 2009-02-23 11:51:59 -0800 | [diff] [blame] | 2619 | /* HT MSI is not enabled */ |
| 2620 | if (found == 1) |
Myron Stowe | dff3aef | 2012-07-09 15:36:08 -0600 | [diff] [blame] | 2621 | goto out; |
Peer Chen | 9dc625e | 2008-02-04 23:50:13 -0800 | [diff] [blame] | 2622 | |
Yinghai Lu | 1dec6b0 | 2009-02-23 11:51:59 -0800 | [diff] [blame] | 2623 | /* Host bridge is not to HT, disable HT MSI mapping on this device */ |
| 2624 | ht_disable_msi_mapping(dev); |
Myron Stowe | dff3aef | 2012-07-09 15:36:08 -0600 | [diff] [blame] | 2625 | |
| 2626 | out: |
| 2627 | pci_dev_put(host_bridge); |
Peer Chen | 9dc625e | 2008-02-04 23:50:13 -0800 | [diff] [blame] | 2628 | } |
Yinghai Lu | de74530 | 2009-03-20 19:29:41 -0700 | [diff] [blame] | 2629 | |
Myron Stowe | 25e742b | 2012-07-09 15:36:14 -0600 | [diff] [blame] | 2630 | static void nv_msi_ht_cap_quirk_all(struct pci_dev *dev) |
Yinghai Lu | de74530 | 2009-03-20 19:29:41 -0700 | [diff] [blame] | 2631 | { |
| 2632 | return __nv_msi_ht_cap_quirk(dev, 1); |
| 2633 | } |
| 2634 | |
Myron Stowe | 25e742b | 2012-07-09 15:36:14 -0600 | [diff] [blame] | 2635 | static void nv_msi_ht_cap_quirk_leaf(struct pci_dev *dev) |
Yinghai Lu | de74530 | 2009-03-20 19:29:41 -0700 | [diff] [blame] | 2636 | { |
| 2637 | return __nv_msi_ht_cap_quirk(dev, 0); |
| 2638 | } |
| 2639 | |
| 2640 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk_leaf); |
Tejun Heo | 6dab62e | 2009-07-21 16:08:43 -0700 | [diff] [blame] | 2641 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, nv_msi_ht_cap_quirk_leaf); |
Yinghai Lu | de74530 | 2009-03-20 19:29:41 -0700 | [diff] [blame] | 2642 | |
| 2643 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all); |
Tejun Heo | 6dab62e | 2009-07-21 16:08:43 -0700 | [diff] [blame] | 2644 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AL, PCI_ANY_ID, nv_msi_ht_cap_quirk_all); |
Peer Chen | 9dc625e | 2008-02-04 23:50:13 -0800 | [diff] [blame] | 2645 | |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 2646 | static void quirk_msi_intx_disable_bug(struct pci_dev *dev) |
David Miller | ba698ad | 2007-10-25 01:16:30 -0700 | [diff] [blame] | 2647 | { |
| 2648 | dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG; |
| 2649 | } |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 2650 | static void quirk_msi_intx_disable_ati_bug(struct pci_dev *dev) |
Shane Huang | 4600c9d | 2008-01-25 15:46:24 +0900 | [diff] [blame] | 2651 | { |
| 2652 | struct pci_dev *p; |
| 2653 | |
| 2654 | /* SB700 MSI issue will be fixed at HW level from revision A21, |
| 2655 | * we need check PCI REVISION ID of SMBus controller to get SB700 |
| 2656 | * revision. |
| 2657 | */ |
| 2658 | p = pci_get_device(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS, |
| 2659 | NULL); |
| 2660 | if (!p) |
| 2661 | return; |
| 2662 | |
| 2663 | if ((p->revision < 0x3B) && (p->revision >= 0x30)) |
| 2664 | dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG; |
| 2665 | pci_dev_put(p); |
| 2666 | } |
Xiong Huang | 7058881 | 2013-03-07 08:55:16 +0000 | [diff] [blame] | 2667 | static void quirk_msi_intx_disable_qca_bug(struct pci_dev *dev) |
| 2668 | { |
| 2669 | /* AR816X/AR817X/E210X MSI is fixed at HW level from revision 0x18 */ |
| 2670 | if (dev->revision < 0x18) { |
| 2671 | dev_info(&dev->dev, "set MSI_INTX_DISABLE_BUG flag\n"); |
| 2672 | dev->dev_flags |= PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG; |
| 2673 | } |
| 2674 | } |
David Miller | ba698ad | 2007-10-25 01:16:30 -0700 | [diff] [blame] | 2675 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, |
| 2676 | PCI_DEVICE_ID_TIGON3_5780, |
| 2677 | quirk_msi_intx_disable_bug); |
| 2678 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, |
| 2679 | PCI_DEVICE_ID_TIGON3_5780S, |
| 2680 | quirk_msi_intx_disable_bug); |
| 2681 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, |
| 2682 | PCI_DEVICE_ID_TIGON3_5714, |
| 2683 | quirk_msi_intx_disable_bug); |
| 2684 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, |
| 2685 | PCI_DEVICE_ID_TIGON3_5714S, |
| 2686 | quirk_msi_intx_disable_bug); |
| 2687 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, |
| 2688 | PCI_DEVICE_ID_TIGON3_5715, |
| 2689 | quirk_msi_intx_disable_bug); |
| 2690 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, |
| 2691 | PCI_DEVICE_ID_TIGON3_5715S, |
| 2692 | quirk_msi_intx_disable_bug); |
| 2693 | |
David Miller | bc38b41 | 2007-10-25 01:16:52 -0700 | [diff] [blame] | 2694 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4390, |
Shane Huang | 4600c9d | 2008-01-25 15:46:24 +0900 | [diff] [blame] | 2695 | quirk_msi_intx_disable_ati_bug); |
David Miller | bc38b41 | 2007-10-25 01:16:52 -0700 | [diff] [blame] | 2696 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4391, |
Shane Huang | 4600c9d | 2008-01-25 15:46:24 +0900 | [diff] [blame] | 2697 | quirk_msi_intx_disable_ati_bug); |
David Miller | bc38b41 | 2007-10-25 01:16:52 -0700 | [diff] [blame] | 2698 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4392, |
Shane Huang | 4600c9d | 2008-01-25 15:46:24 +0900 | [diff] [blame] | 2699 | quirk_msi_intx_disable_ati_bug); |
David Miller | bc38b41 | 2007-10-25 01:16:52 -0700 | [diff] [blame] | 2700 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4393, |
Shane Huang | 4600c9d | 2008-01-25 15:46:24 +0900 | [diff] [blame] | 2701 | quirk_msi_intx_disable_ati_bug); |
David Miller | bc38b41 | 2007-10-25 01:16:52 -0700 | [diff] [blame] | 2702 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4394, |
Shane Huang | 4600c9d | 2008-01-25 15:46:24 +0900 | [diff] [blame] | 2703 | quirk_msi_intx_disable_ati_bug); |
David Miller | bc38b41 | 2007-10-25 01:16:52 -0700 | [diff] [blame] | 2704 | |
| 2705 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4373, |
| 2706 | quirk_msi_intx_disable_bug); |
| 2707 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4374, |
| 2708 | quirk_msi_intx_disable_bug); |
| 2709 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4375, |
| 2710 | quirk_msi_intx_disable_bug); |
| 2711 | |
Huang, Xiong | 7cb6a29 | 2012-04-30 15:38:49 +0000 | [diff] [blame] | 2712 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1062, |
| 2713 | quirk_msi_intx_disable_bug); |
| 2714 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1063, |
| 2715 | quirk_msi_intx_disable_bug); |
| 2716 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x2060, |
| 2717 | quirk_msi_intx_disable_bug); |
| 2718 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x2062, |
| 2719 | quirk_msi_intx_disable_bug); |
| 2720 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1073, |
| 2721 | quirk_msi_intx_disable_bug); |
| 2722 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1083, |
| 2723 | quirk_msi_intx_disable_bug); |
Xiong Huang | 7058881 | 2013-03-07 08:55:16 +0000 | [diff] [blame] | 2724 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1090, |
| 2725 | quirk_msi_intx_disable_qca_bug); |
| 2726 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x1091, |
| 2727 | quirk_msi_intx_disable_qca_bug); |
| 2728 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x10a0, |
| 2729 | quirk_msi_intx_disable_qca_bug); |
| 2730 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0x10a1, |
| 2731 | quirk_msi_intx_disable_qca_bug); |
| 2732 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0xe091, |
| 2733 | quirk_msi_intx_disable_qca_bug); |
Brice Goglin | 3f79e10 | 2006-08-31 01:54:56 -0400 | [diff] [blame] | 2734 | #endif /* CONFIG_PCI_MSI */ |
Thomas Petazzoni | 3d13731 | 2008-08-19 10:28:24 +0200 | [diff] [blame] | 2735 | |
Felix Radensky | 3322340 | 2010-03-28 16:02:02 +0300 | [diff] [blame] | 2736 | /* Allow manual resource allocation for PCI hotplug bridges |
| 2737 | * via pci=hpmemsize=nnM and pci=hpiosize=nnM parameters. For |
| 2738 | * some PCI-PCI hotplug bridges, like PLX 6254 (former HINT HB6), |
Bjorn Helgaas | f762598 | 2013-11-14 11:28:18 -0700 | [diff] [blame] | 2739 | * kernel fails to allocate resources when hotplug device is |
Felix Radensky | 3322340 | 2010-03-28 16:02:02 +0300 | [diff] [blame] | 2740 | * inserted and PCI bus is rescanned. |
| 2741 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 2742 | static void quirk_hotplug_bridge(struct pci_dev *dev) |
Felix Radensky | 3322340 | 2010-03-28 16:02:02 +0300 | [diff] [blame] | 2743 | { |
| 2744 | dev->is_hotplug_bridge = 1; |
| 2745 | } |
| 2746 | |
| 2747 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_HINT, 0x0020, quirk_hotplug_bridge); |
| 2748 | |
Maxim Levitsky | 03cd8f7 | 2010-03-05 13:43:20 -0800 | [diff] [blame] | 2749 | /* |
| 2750 | * This is a quirk for the Ricoh MMC controller found as a part of |
| 2751 | * some mulifunction chips. |
| 2752 | |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 2753 | * This is very similar and based on the ricoh_mmc driver written by |
Maxim Levitsky | 03cd8f7 | 2010-03-05 13:43:20 -0800 | [diff] [blame] | 2754 | * Philip Langdale. Thank you for these magic sequences. |
| 2755 | * |
| 2756 | * These chips implement the four main memory card controllers (SD, MMC, MS, xD) |
| 2757 | * and one or both of cardbus or firewire. |
| 2758 | * |
| 2759 | * It happens that they implement SD and MMC |
| 2760 | * support as separate controllers (and PCI functions). The linux SDHCI |
| 2761 | * driver supports MMC cards but the chip detects MMC cards in hardware |
| 2762 | * and directs them to the MMC controller - so the SDHCI driver never sees |
| 2763 | * them. |
| 2764 | * |
| 2765 | * To get around this, we must disable the useless MMC controller. |
| 2766 | * At that point, the SDHCI controller will start seeing them |
| 2767 | * It seems to be the case that the relevant PCI registers to deactivate the |
| 2768 | * MMC controller live on PCI function 0, which might be the cardbus controller |
| 2769 | * or the firewire controller, depending on the particular chip in question |
| 2770 | * |
| 2771 | * This has to be done early, because as soon as we disable the MMC controller |
| 2772 | * other pci functions shift up one level, e.g. function #2 becomes function |
| 2773 | * #1, and this will confuse the pci core. |
| 2774 | */ |
| 2775 | |
| 2776 | #ifdef CONFIG_MMC_RICOH_MMC |
| 2777 | static void ricoh_mmc_fixup_rl5c476(struct pci_dev *dev) |
| 2778 | { |
| 2779 | /* disable via cardbus interface */ |
| 2780 | u8 write_enable; |
| 2781 | u8 write_target; |
| 2782 | u8 disable; |
| 2783 | |
| 2784 | /* disable must be done via function #0 */ |
| 2785 | if (PCI_FUNC(dev->devfn)) |
| 2786 | return; |
| 2787 | |
| 2788 | pci_read_config_byte(dev, 0xB7, &disable); |
| 2789 | if (disable & 0x02) |
| 2790 | return; |
| 2791 | |
| 2792 | pci_read_config_byte(dev, 0x8E, &write_enable); |
| 2793 | pci_write_config_byte(dev, 0x8E, 0xAA); |
| 2794 | pci_read_config_byte(dev, 0x8D, &write_target); |
| 2795 | pci_write_config_byte(dev, 0x8D, 0xB7); |
| 2796 | pci_write_config_byte(dev, 0xB7, disable | 0x02); |
| 2797 | pci_write_config_byte(dev, 0x8E, write_enable); |
| 2798 | pci_write_config_byte(dev, 0x8D, write_target); |
| 2799 | |
| 2800 | dev_notice(&dev->dev, "proprietary Ricoh MMC controller disabled (via cardbus function)\n"); |
| 2801 | dev_notice(&dev->dev, "MMC cards are now supported by standard SDHCI controller\n"); |
| 2802 | } |
| 2803 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, ricoh_mmc_fixup_rl5c476); |
| 2804 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, ricoh_mmc_fixup_rl5c476); |
| 2805 | |
| 2806 | static void ricoh_mmc_fixup_r5c832(struct pci_dev *dev) |
| 2807 | { |
| 2808 | /* disable via firewire interface */ |
| 2809 | u8 write_enable; |
| 2810 | u8 disable; |
| 2811 | |
| 2812 | /* disable must be done via function #0 */ |
| 2813 | if (PCI_FUNC(dev->devfn)) |
| 2814 | return; |
Manoj Iyer | 15bed0f | 2011-07-11 16:28:35 -0500 | [diff] [blame] | 2815 | /* |
Andy Lutomirski | 812089e | 2012-12-01 12:37:20 -0800 | [diff] [blame] | 2816 | * RICOH 0xe822 and 0xe823 SD/MMC card readers fail to recognize |
Manoj Iyer | 15bed0f | 2011-07-11 16:28:35 -0500 | [diff] [blame] | 2817 | * certain types of SD/MMC cards. Lowering the SD base |
| 2818 | * clock frequency from 200Mhz to 50Mhz fixes this issue. |
| 2819 | * |
| 2820 | * 0x150 - SD2.0 mode enable for changing base clock |
| 2821 | * frequency to 50Mhz |
| 2822 | * 0xe1 - Base clock frequency |
| 2823 | * 0x32 - 50Mhz new clock frequency |
| 2824 | * 0xf9 - Key register for 0x150 |
| 2825 | * 0xfc - key register for 0xe1 |
| 2826 | */ |
Andy Lutomirski | 812089e | 2012-12-01 12:37:20 -0800 | [diff] [blame] | 2827 | if (dev->device == PCI_DEVICE_ID_RICOH_R5CE822 || |
| 2828 | dev->device == PCI_DEVICE_ID_RICOH_R5CE823) { |
Manoj Iyer | 15bed0f | 2011-07-11 16:28:35 -0500 | [diff] [blame] | 2829 | pci_write_config_byte(dev, 0xf9, 0xfc); |
| 2830 | pci_write_config_byte(dev, 0x150, 0x10); |
| 2831 | pci_write_config_byte(dev, 0xf9, 0x00); |
| 2832 | pci_write_config_byte(dev, 0xfc, 0x01); |
| 2833 | pci_write_config_byte(dev, 0xe1, 0x32); |
| 2834 | pci_write_config_byte(dev, 0xfc, 0x00); |
| 2835 | |
| 2836 | dev_notice(&dev->dev, "MMC controller base frequency changed to 50Mhz.\n"); |
| 2837 | } |
Josh Boyer | 3e309cd | 2011-10-05 11:44:50 -0400 | [diff] [blame] | 2838 | |
| 2839 | pci_read_config_byte(dev, 0xCB, &disable); |
| 2840 | |
| 2841 | if (disable & 0x02) |
| 2842 | return; |
| 2843 | |
| 2844 | pci_read_config_byte(dev, 0xCA, &write_enable); |
| 2845 | pci_write_config_byte(dev, 0xCA, 0x57); |
| 2846 | pci_write_config_byte(dev, 0xCB, disable | 0x02); |
| 2847 | pci_write_config_byte(dev, 0xCA, write_enable); |
| 2848 | |
| 2849 | dev_notice(&dev->dev, "proprietary Ricoh MMC controller disabled (via firewire function)\n"); |
| 2850 | dev_notice(&dev->dev, "MMC cards are now supported by standard SDHCI controller\n"); |
| 2851 | |
Maxim Levitsky | 03cd8f7 | 2010-03-05 13:43:20 -0800 | [diff] [blame] | 2852 | } |
| 2853 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5C832, ricoh_mmc_fixup_r5c832); |
| 2854 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5C832, ricoh_mmc_fixup_r5c832); |
Andy Lutomirski | 812089e | 2012-12-01 12:37:20 -0800 | [diff] [blame] | 2855 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE822, ricoh_mmc_fixup_r5c832); |
| 2856 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE822, ricoh_mmc_fixup_r5c832); |
Manoj Iyer | be98ca6 | 2011-05-26 11:19:05 -0500 | [diff] [blame] | 2857 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE823, ricoh_mmc_fixup_r5c832); |
| 2858 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5CE823, ricoh_mmc_fixup_r5c832); |
Maxim Levitsky | 03cd8f7 | 2010-03-05 13:43:20 -0800 | [diff] [blame] | 2859 | #endif /*CONFIG_MMC_RICOH_MMC*/ |
| 2860 | |
Suresh Siddha | d3f1381 | 2011-08-23 17:05:25 -0700 | [diff] [blame] | 2861 | #ifdef CONFIG_DMAR_TABLE |
Suresh Siddha | 254e4200 | 2010-12-06 12:26:30 -0800 | [diff] [blame] | 2862 | #define VTUNCERRMSK_REG 0x1ac |
| 2863 | #define VTD_MSK_SPEC_ERRORS (1 << 31) |
| 2864 | /* |
| 2865 | * This is a quirk for masking vt-d spec defined errors to platform error |
| 2866 | * handling logic. With out this, platforms using Intel 7500, 5500 chipsets |
| 2867 | * (and the derivative chipsets like X58 etc) seem to generate NMI/SMI (based |
| 2868 | * on the RAS config settings of the platform) when a vt-d fault happens. |
| 2869 | * The resulting SMI caused the system to hang. |
| 2870 | * |
| 2871 | * VT-d spec related errors are already handled by the VT-d OS code, so no |
| 2872 | * need to report the same error through other channels. |
| 2873 | */ |
| 2874 | static void vtd_mask_spec_errors(struct pci_dev *dev) |
| 2875 | { |
| 2876 | u32 word; |
| 2877 | |
| 2878 | pci_read_config_dword(dev, VTUNCERRMSK_REG, &word); |
| 2879 | pci_write_config_dword(dev, VTUNCERRMSK_REG, word | VTD_MSK_SPEC_ERRORS); |
| 2880 | } |
| 2881 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x342e, vtd_mask_spec_errors); |
| 2882 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x3c28, vtd_mask_spec_errors); |
| 2883 | #endif |
Maxim Levitsky | 03cd8f7 | 2010-03-05 13:43:20 -0800 | [diff] [blame] | 2884 | |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 2885 | static void fixup_ti816x_class(struct pci_dev *dev) |
Hemant Pedanekar | 63c4408 | 2011-04-05 12:32:50 +0530 | [diff] [blame] | 2886 | { |
Bjorn Helgaas | d1541dc | 2015-06-19 15:58:24 -0500 | [diff] [blame] | 2887 | u32 class = dev->class; |
| 2888 | |
Hemant Pedanekar | 63c4408 | 2011-04-05 12:32:50 +0530 | [diff] [blame] | 2889 | /* TI 816x devices do not have class code set when in PCIe boot mode */ |
Bjorn Helgaas | d1541dc | 2015-06-19 15:58:24 -0500 | [diff] [blame] | 2890 | dev->class = PCI_CLASS_MULTIMEDIA_VIDEO << 8; |
| 2891 | dev_info(&dev->dev, "PCI class overridden (%#08x -> %#08x)\n", |
| 2892 | class, dev->class); |
Hemant Pedanekar | 63c4408 | 2011-04-05 12:32:50 +0530 | [diff] [blame] | 2893 | } |
Yinghai Lu | 40c9623 | 2012-02-23 23:46:58 -0800 | [diff] [blame] | 2894 | DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_VENDOR_ID_TI, 0xb800, |
Bjorn Helgaas | 2b4aed1 | 2015-06-19 16:20:58 -0500 | [diff] [blame] | 2895 | PCI_CLASS_NOT_DEFINED, 8, fixup_ti816x_class); |
Hemant Pedanekar | 63c4408 | 2011-04-05 12:32:50 +0530 | [diff] [blame] | 2896 | |
Ben Hutchings | a94d072 | 2011-10-05 22:35:03 +0100 | [diff] [blame] | 2897 | /* Some PCIe devices do not work reliably with the claimed maximum |
| 2898 | * payload size supported. |
| 2899 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 2900 | static void fixup_mpss_256(struct pci_dev *dev) |
Ben Hutchings | a94d072 | 2011-10-05 22:35:03 +0100 | [diff] [blame] | 2901 | { |
| 2902 | dev->pcie_mpss = 1; /* 256 bytes */ |
| 2903 | } |
| 2904 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SOLARFLARE, |
| 2905 | PCI_DEVICE_ID_SOLARFLARE_SFC4000A_0, fixup_mpss_256); |
| 2906 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SOLARFLARE, |
| 2907 | PCI_DEVICE_ID_SOLARFLARE_SFC4000A_1, fixup_mpss_256); |
| 2908 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SOLARFLARE, |
| 2909 | PCI_DEVICE_ID_SOLARFLARE_SFC4000B, fixup_mpss_256); |
| 2910 | |
Jon Mason | d387a8d | 2011-10-14 14:56:13 -0500 | [diff] [blame] | 2911 | /* Intel 5000 and 5100 Memory controllers have an errata with read completion |
| 2912 | * coalescing (which is enabled by default on some BIOSes) and MPS of 256B. |
| 2913 | * Since there is no way of knowing what the PCIE MPS on each fabric will be |
| 2914 | * until all of the devices are discovered and buses walked, read completion |
| 2915 | * coalescing must be disabled. Unfortunately, it cannot be re-enabled because |
| 2916 | * it is possible to hotplug a device with MPS of 256B. |
| 2917 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 2918 | static void quirk_intel_mc_errata(struct pci_dev *dev) |
Jon Mason | d387a8d | 2011-10-14 14:56:13 -0500 | [diff] [blame] | 2919 | { |
| 2920 | int err; |
| 2921 | u16 rcc; |
| 2922 | |
Keith Busch | 27d868b | 2015-08-24 08:48:16 -0500 | [diff] [blame] | 2923 | if (pcie_bus_config == PCIE_BUS_TUNE_OFF || |
| 2924 | pcie_bus_config == PCIE_BUS_DEFAULT) |
Jon Mason | d387a8d | 2011-10-14 14:56:13 -0500 | [diff] [blame] | 2925 | return; |
| 2926 | |
| 2927 | /* Intel errata specifies bits to change but does not say what they are. |
| 2928 | * Keeping them magical until such time as the registers and values can |
| 2929 | * be explained. |
| 2930 | */ |
| 2931 | err = pci_read_config_word(dev, 0x48, &rcc); |
| 2932 | if (err) { |
Ryan Desfosses | 227f064 | 2014-04-18 20:13:50 -0400 | [diff] [blame] | 2933 | dev_err(&dev->dev, "Error attempting to read the read completion coalescing register\n"); |
Jon Mason | d387a8d | 2011-10-14 14:56:13 -0500 | [diff] [blame] | 2934 | return; |
| 2935 | } |
| 2936 | |
| 2937 | if (!(rcc & (1 << 10))) |
| 2938 | return; |
| 2939 | |
| 2940 | rcc &= ~(1 << 10); |
| 2941 | |
| 2942 | err = pci_write_config_word(dev, 0x48, rcc); |
| 2943 | if (err) { |
Ryan Desfosses | 227f064 | 2014-04-18 20:13:50 -0400 | [diff] [blame] | 2944 | dev_err(&dev->dev, "Error attempting to write the read completion coalescing register\n"); |
Jon Mason | d387a8d | 2011-10-14 14:56:13 -0500 | [diff] [blame] | 2945 | return; |
| 2946 | } |
| 2947 | |
Ryan Desfosses | 227f064 | 2014-04-18 20:13:50 -0400 | [diff] [blame] | 2948 | pr_info_once("Read completion coalescing disabled due to hardware errata relating to 256B MPS\n"); |
Jon Mason | d387a8d | 2011-10-14 14:56:13 -0500 | [diff] [blame] | 2949 | } |
| 2950 | /* Intel 5000 series memory controllers and ports 2-7 */ |
| 2951 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25c0, quirk_intel_mc_errata); |
| 2952 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d0, quirk_intel_mc_errata); |
| 2953 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d4, quirk_intel_mc_errata); |
| 2954 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25d8, quirk_intel_mc_errata); |
| 2955 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e2, quirk_intel_mc_errata); |
| 2956 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e3, quirk_intel_mc_errata); |
| 2957 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e4, quirk_intel_mc_errata); |
| 2958 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e5, quirk_intel_mc_errata); |
| 2959 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e6, quirk_intel_mc_errata); |
| 2960 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25e7, quirk_intel_mc_errata); |
| 2961 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f7, quirk_intel_mc_errata); |
| 2962 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f8, quirk_intel_mc_errata); |
| 2963 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25f9, quirk_intel_mc_errata); |
| 2964 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x25fa, quirk_intel_mc_errata); |
| 2965 | /* Intel 5100 series memory controllers and ports 2-7 */ |
| 2966 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65c0, quirk_intel_mc_errata); |
| 2967 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e2, quirk_intel_mc_errata); |
| 2968 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e3, quirk_intel_mc_errata); |
| 2969 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e4, quirk_intel_mc_errata); |
| 2970 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e5, quirk_intel_mc_errata); |
| 2971 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e6, quirk_intel_mc_errata); |
| 2972 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65e7, quirk_intel_mc_errata); |
| 2973 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f7, quirk_intel_mc_errata); |
| 2974 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f8, quirk_intel_mc_errata); |
| 2975 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65f9, quirk_intel_mc_errata); |
| 2976 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x65fa, quirk_intel_mc_errata); |
| 2977 | |
Arjan van de Ven | 3209874 | 2012-01-30 20:52:07 -0800 | [diff] [blame] | 2978 | |
Jon Mason | 12b0318 | 2013-05-06 08:03:33 +0000 | [diff] [blame] | 2979 | /* |
| 2980 | * Ivytown NTB BAR sizes are misreported by the hardware due to an erratum. To |
| 2981 | * work around this, query the size it should be configured to by the device and |
| 2982 | * modify the resource end to correspond to this new size. |
| 2983 | */ |
| 2984 | static void quirk_intel_ntb(struct pci_dev *dev) |
| 2985 | { |
| 2986 | int rc; |
| 2987 | u8 val; |
| 2988 | |
| 2989 | rc = pci_read_config_byte(dev, 0x00D0, &val); |
| 2990 | if (rc) |
| 2991 | return; |
| 2992 | |
| 2993 | dev->resource[2].end = dev->resource[2].start + ((u64) 1 << val) - 1; |
| 2994 | |
| 2995 | rc = pci_read_config_byte(dev, 0x00D1, &val); |
| 2996 | if (rc) |
| 2997 | return; |
| 2998 | |
| 2999 | dev->resource[4].end = dev->resource[4].start + ((u64) 1 << val) - 1; |
| 3000 | } |
| 3001 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0e08, quirk_intel_ntb); |
| 3002 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0e0d, quirk_intel_ntb); |
| 3003 | |
Myron Stowe | 2729d5b | 2012-07-09 15:36:02 -0600 | [diff] [blame] | 3004 | static ktime_t fixup_debug_start(struct pci_dev *dev, |
| 3005 | void (*fn)(struct pci_dev *dev)) |
Arjan van de Ven | 3209874 | 2012-01-30 20:52:07 -0800 | [diff] [blame] | 3006 | { |
Myron Stowe | 2729d5b | 2012-07-09 15:36:02 -0600 | [diff] [blame] | 3007 | ktime_t calltime = ktime_set(0, 0); |
| 3008 | |
| 3009 | dev_dbg(&dev->dev, "calling %pF\n", fn); |
| 3010 | if (initcall_debug) { |
| 3011 | pr_debug("calling %pF @ %i for %s\n", |
| 3012 | fn, task_pid_nr(current), dev_name(&dev->dev)); |
| 3013 | calltime = ktime_get(); |
| 3014 | } |
| 3015 | |
| 3016 | return calltime; |
| 3017 | } |
| 3018 | |
| 3019 | static void fixup_debug_report(struct pci_dev *dev, ktime_t calltime, |
| 3020 | void (*fn)(struct pci_dev *dev)) |
| 3021 | { |
| 3022 | ktime_t delta, rettime; |
Arjan van de Ven | 3209874 | 2012-01-30 20:52:07 -0800 | [diff] [blame] | 3023 | unsigned long long duration; |
| 3024 | |
Myron Stowe | 2729d5b | 2012-07-09 15:36:02 -0600 | [diff] [blame] | 3025 | if (initcall_debug) { |
| 3026 | rettime = ktime_get(); |
| 3027 | delta = ktime_sub(rettime, calltime); |
| 3028 | duration = (unsigned long long) ktime_to_ns(delta) >> 10; |
| 3029 | pr_debug("pci fixup %pF returned after %lld usecs for %s\n", |
| 3030 | fn, duration, dev_name(&dev->dev)); |
| 3031 | } |
Arjan van de Ven | 3209874 | 2012-01-30 20:52:07 -0800 | [diff] [blame] | 3032 | } |
| 3033 | |
Thomas Jarosch | f67fd55 | 2011-12-07 22:08:11 +0100 | [diff] [blame] | 3034 | /* |
| 3035 | * Some BIOS implementations leave the Intel GPU interrupts enabled, |
| 3036 | * even though no one is handling them (f.e. i915 driver is never loaded). |
| 3037 | * Additionally the interrupt destination is not set up properly |
| 3038 | * and the interrupt ends up -somewhere-. |
| 3039 | * |
| 3040 | * These spurious interrupts are "sticky" and the kernel disables |
| 3041 | * the (shared) interrupt line after 100.000+ generated interrupts. |
| 3042 | * |
| 3043 | * Fix it by disabling the still enabled interrupts. |
| 3044 | * This resolves crashes often seen on monitor unplug. |
| 3045 | */ |
| 3046 | #define I915_DEIER_REG 0x4400c |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 3047 | static void disable_igfx_irq(struct pci_dev *dev) |
Thomas Jarosch | f67fd55 | 2011-12-07 22:08:11 +0100 | [diff] [blame] | 3048 | { |
| 3049 | void __iomem *regs = pci_iomap(dev, 0, 0); |
| 3050 | if (regs == NULL) { |
| 3051 | dev_warn(&dev->dev, "igfx quirk: Can't iomap PCI device\n"); |
| 3052 | return; |
| 3053 | } |
| 3054 | |
| 3055 | /* Check if any interrupt line is still enabled */ |
| 3056 | if (readl(regs + I915_DEIER_REG) != 0) { |
Ryan Desfosses | 227f064 | 2014-04-18 20:13:50 -0400 | [diff] [blame] | 3057 | dev_warn(&dev->dev, "BIOS left Intel GPU interrupts enabled; disabling\n"); |
Thomas Jarosch | f67fd55 | 2011-12-07 22:08:11 +0100 | [diff] [blame] | 3058 | |
| 3059 | writel(0, regs + I915_DEIER_REG); |
| 3060 | } |
| 3061 | |
| 3062 | pci_iounmap(dev, regs); |
| 3063 | } |
| 3064 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0102, disable_igfx_irq); |
| 3065 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x010a, disable_igfx_irq); |
Thomas Jarosch | 7c82126 | 2014-04-07 15:10:32 +0200 | [diff] [blame] | 3066 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0152, disable_igfx_irq); |
Thomas Jarosch | f67fd55 | 2011-12-07 22:08:11 +0100 | [diff] [blame] | 3067 | |
Bjorn Helgaas | fbebb9f | 2012-06-16 14:40:22 -0600 | [diff] [blame] | 3068 | /* |
Todd E Brandt | b8cac70 | 2013-09-10 16:10:43 -0700 | [diff] [blame] | 3069 | * PCI devices which are on Intel chips can skip the 10ms delay |
| 3070 | * before entering D3 mode. |
| 3071 | */ |
| 3072 | static void quirk_remove_d3_delay(struct pci_dev *dev) |
| 3073 | { |
| 3074 | dev->d3_delay = 0; |
| 3075 | } |
| 3076 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c00, quirk_remove_d3_delay); |
| 3077 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0412, quirk_remove_d3_delay); |
| 3078 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c0c, quirk_remove_d3_delay); |
| 3079 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c31, quirk_remove_d3_delay); |
| 3080 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3a, quirk_remove_d3_delay); |
| 3081 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3d, quirk_remove_d3_delay); |
| 3082 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c2d, quirk_remove_d3_delay); |
| 3083 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c20, quirk_remove_d3_delay); |
| 3084 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c18, quirk_remove_d3_delay); |
| 3085 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c1c, quirk_remove_d3_delay); |
| 3086 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c26, quirk_remove_d3_delay); |
| 3087 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c4e, quirk_remove_d3_delay); |
| 3088 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c02, quirk_remove_d3_delay); |
| 3089 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c22, quirk_remove_d3_delay); |
Srinidhi Kasagar | 4a11875 | 2015-06-19 11:52:46 +0530 | [diff] [blame] | 3090 | /* Intel Cherrytrail devices do not need 10ms d3_delay */ |
| 3091 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2280, quirk_remove_d3_delay); |
| 3092 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b0, quirk_remove_d3_delay); |
| 3093 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b8, quirk_remove_d3_delay); |
| 3094 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22d8, quirk_remove_d3_delay); |
| 3095 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22dc, quirk_remove_d3_delay); |
| 3096 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b5, quirk_remove_d3_delay); |
| 3097 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x22b7, quirk_remove_d3_delay); |
| 3098 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2298, quirk_remove_d3_delay); |
| 3099 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x229c, quirk_remove_d3_delay); |
Todd E Brandt | b8cac70 | 2013-09-10 16:10:43 -0700 | [diff] [blame] | 3100 | /* |
Bjorn Helgaas | fbebb9f | 2012-06-16 14:40:22 -0600 | [diff] [blame] | 3101 | * Some devices may pass our check in pci_intx_mask_supported if |
| 3102 | * PCI_COMMAND_INTX_DISABLE works though they actually do not properly |
| 3103 | * support this feature. |
| 3104 | */ |
Bill Pemberton | 15856ad | 2012-11-21 15:35:00 -0500 | [diff] [blame] | 3105 | static void quirk_broken_intx_masking(struct pci_dev *dev) |
Bjorn Helgaas | fbebb9f | 2012-06-16 14:40:22 -0600 | [diff] [blame] | 3106 | { |
| 3107 | dev->broken_intx_masking = 1; |
| 3108 | } |
Jan Kiszka | de509f9 | 2012-06-07 10:30:59 +0200 | [diff] [blame] | 3109 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_CHELSIO, 0x0030, |
| 3110 | quirk_broken_intx_masking); |
Alex Williamson | 0bdb3b2 | 2012-06-07 11:01:59 -0600 | [diff] [blame] | 3111 | DECLARE_PCI_FIXUP_HEADER(0x1814, 0x0601, /* Ralink RT2800 802.11n PCI */ |
| 3112 | quirk_broken_intx_masking); |
Alex Williamson | 3cb30b7 | 2014-05-01 14:36:31 -0600 | [diff] [blame] | 3113 | /* |
| 3114 | * Realtek RTL8169 PCI Gigabit Ethernet Controller (rev 10) |
| 3115 | * Subsystem: Realtek RTL8169/8110 Family PCI Gigabit Ethernet NIC |
| 3116 | * |
| 3117 | * RTL8110SC - Fails under PCI device assignment using DisINTx masking. |
| 3118 | */ |
| 3119 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_REALTEK, 0x8169, |
| 3120 | quirk_broken_intx_masking); |
Gavin Shan | 11e4253 | 2014-09-05 15:35:30 -0600 | [diff] [blame] | 3121 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MELLANOX, PCI_ANY_ID, |
| 3122 | quirk_broken_intx_masking); |
Bjorn Helgaas | fbebb9f | 2012-06-16 14:40:22 -0600 | [diff] [blame] | 3123 | |
Alex Williamson | c3e59ee | 2015-01-15 18:17:12 -0600 | [diff] [blame] | 3124 | static void quirk_no_bus_reset(struct pci_dev *dev) |
| 3125 | { |
| 3126 | dev->dev_flags |= PCI_DEV_FLAGS_NO_BUS_RESET; |
| 3127 | } |
| 3128 | |
| 3129 | /* |
| 3130 | * Atheros AR93xx chips do not behave after a bus reset. The device will |
| 3131 | * throw a Link Down error on AER-capable systems and regardless of AER, |
| 3132 | * config space of the device is never accessible again and typically |
| 3133 | * causes the system to hang or reset when access is attempted. |
| 3134 | * http://www.spinics.net/lists/linux-pci/msg34797.html |
| 3135 | */ |
| 3136 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATHEROS, 0x0030, quirk_no_bus_reset); |
| 3137 | |
Alex Williamson | d84f317 | 2014-11-21 11:24:14 -0700 | [diff] [blame] | 3138 | static void quirk_no_pm_reset(struct pci_dev *dev) |
| 3139 | { |
| 3140 | /* |
| 3141 | * We can't do a bus reset on root bus devices, but an ineffective |
| 3142 | * PM reset may be better than nothing. |
| 3143 | */ |
| 3144 | if (!pci_is_root_bus(dev->bus)) |
| 3145 | dev->dev_flags |= PCI_DEV_FLAGS_NO_PM_RESET; |
| 3146 | } |
| 3147 | |
| 3148 | /* |
| 3149 | * Some AMD/ATI GPUS (HD8570 - Oland) report that a D3hot->D0 transition |
| 3150 | * causes a reset (i.e., they advertise NoSoftRst-). This transition seems |
| 3151 | * to have no effect on the device: it retains the framebuffer contents and |
| 3152 | * monitor sync. Advertising this support makes other layers, like VFIO, |
| 3153 | * assume pci_reset_function() is viable for this device. Mark it as |
| 3154 | * unavailable to skip it when testing reset methods. |
| 3155 | */ |
| 3156 | DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_ATI, PCI_ANY_ID, |
| 3157 | PCI_CLASS_DISPLAY_VGA, 8, quirk_no_pm_reset); |
| 3158 | |
Andreas Noever | 1df5172 | 2014-06-03 22:04:10 +0200 | [diff] [blame] | 3159 | #ifdef CONFIG_ACPI |
| 3160 | /* |
| 3161 | * Apple: Shutdown Cactus Ridge Thunderbolt controller. |
| 3162 | * |
| 3163 | * On Apple hardware the Cactus Ridge Thunderbolt controller needs to be |
| 3164 | * shutdown before suspend. Otherwise the native host interface (NHI) will not |
| 3165 | * be present after resume if a device was plugged in before suspend. |
| 3166 | * |
| 3167 | * The thunderbolt controller consists of a pcie switch with downstream |
| 3168 | * bridges leading to the NHI and to the tunnel pci bridges. |
| 3169 | * |
| 3170 | * This quirk cuts power to the whole chip. Therefore we have to apply it |
| 3171 | * during suspend_noirq of the upstream bridge. |
| 3172 | * |
| 3173 | * Power is automagically restored before resume. No action is needed. |
| 3174 | */ |
| 3175 | static void quirk_apple_poweroff_thunderbolt(struct pci_dev *dev) |
| 3176 | { |
| 3177 | acpi_handle bridge, SXIO, SXFP, SXLV; |
| 3178 | |
| 3179 | if (!dmi_match(DMI_BOARD_VENDOR, "Apple Inc.")) |
| 3180 | return; |
| 3181 | if (pci_pcie_type(dev) != PCI_EXP_TYPE_UPSTREAM) |
| 3182 | return; |
| 3183 | bridge = ACPI_HANDLE(&dev->dev); |
| 3184 | if (!bridge) |
| 3185 | return; |
| 3186 | /* |
| 3187 | * SXIO and SXLV are present only on machines requiring this quirk. |
| 3188 | * TB bridges in external devices might have the same device id as those |
| 3189 | * on the host, but they will not have the associated ACPI methods. This |
| 3190 | * implicitly checks that we are at the right bridge. |
| 3191 | */ |
| 3192 | if (ACPI_FAILURE(acpi_get_handle(bridge, "DSB0.NHI0.SXIO", &SXIO)) |
| 3193 | || ACPI_FAILURE(acpi_get_handle(bridge, "DSB0.NHI0.SXFP", &SXFP)) |
| 3194 | || ACPI_FAILURE(acpi_get_handle(bridge, "DSB0.NHI0.SXLV", &SXLV))) |
| 3195 | return; |
| 3196 | dev_info(&dev->dev, "quirk: cutting power to thunderbolt controller...\n"); |
| 3197 | |
| 3198 | /* magic sequence */ |
| 3199 | acpi_execute_simple_method(SXIO, NULL, 1); |
| 3200 | acpi_execute_simple_method(SXFP, NULL, 0); |
| 3201 | msleep(300); |
| 3202 | acpi_execute_simple_method(SXLV, NULL, 0); |
| 3203 | acpi_execute_simple_method(SXIO, NULL, 0); |
| 3204 | acpi_execute_simple_method(SXLV, NULL, 0); |
| 3205 | } |
| 3206 | DECLARE_PCI_FIXUP_SUSPEND_LATE(PCI_VENDOR_ID_INTEL, 0x1547, |
| 3207 | quirk_apple_poweroff_thunderbolt); |
| 3208 | |
| 3209 | /* |
| 3210 | * Apple: Wait for the thunderbolt controller to reestablish pci tunnels. |
| 3211 | * |
| 3212 | * During suspend the thunderbolt controller is reset and all pci |
| 3213 | * tunnels are lost. The NHI driver will try to reestablish all tunnels |
| 3214 | * during resume. We have to manually wait for the NHI since there is |
| 3215 | * no parent child relationship between the NHI and the tunneled |
| 3216 | * bridges. |
| 3217 | */ |
| 3218 | static void quirk_apple_wait_for_thunderbolt(struct pci_dev *dev) |
| 3219 | { |
| 3220 | struct pci_dev *sibling = NULL; |
| 3221 | struct pci_dev *nhi = NULL; |
| 3222 | |
| 3223 | if (!dmi_match(DMI_BOARD_VENDOR, "Apple Inc.")) |
| 3224 | return; |
| 3225 | if (pci_pcie_type(dev) != PCI_EXP_TYPE_DOWNSTREAM) |
| 3226 | return; |
| 3227 | /* |
| 3228 | * Find the NHI and confirm that we are a bridge on the tb host |
| 3229 | * controller and not on a tb endpoint. |
| 3230 | */ |
| 3231 | sibling = pci_get_slot(dev->bus, 0x0); |
| 3232 | if (sibling == dev) |
| 3233 | goto out; /* we are the downstream bridge to the NHI */ |
| 3234 | if (!sibling || !sibling->subordinate) |
| 3235 | goto out; |
| 3236 | nhi = pci_get_slot(sibling->subordinate, 0x0); |
| 3237 | if (!nhi) |
| 3238 | goto out; |
| 3239 | if (nhi->vendor != PCI_VENDOR_ID_INTEL |
| 3240 | || (nhi->device != 0x1547 && nhi->device != 0x156c) |
| 3241 | || nhi->subsystem_vendor != 0x2222 |
| 3242 | || nhi->subsystem_device != 0x1111) |
| 3243 | goto out; |
Darrick J. Wong | c89ac44 | 2015-03-31 19:38:38 -0700 | [diff] [blame] | 3244 | dev_info(&dev->dev, "quirk: waiting for thunderbolt to reestablish PCI tunnels...\n"); |
Andreas Noever | 1df5172 | 2014-06-03 22:04:10 +0200 | [diff] [blame] | 3245 | device_pm_wait_for_dev(&dev->dev, &nhi->dev); |
| 3246 | out: |
| 3247 | pci_dev_put(nhi); |
| 3248 | pci_dev_put(sibling); |
| 3249 | } |
| 3250 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, 0x1547, |
| 3251 | quirk_apple_wait_for_thunderbolt); |
| 3252 | DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_INTEL, 0x156d, |
| 3253 | quirk_apple_wait_for_thunderbolt); |
| 3254 | #endif |
| 3255 | |
Jesse Barnes | bfb0f33 | 2008-10-27 17:50:21 -0700 | [diff] [blame] | 3256 | static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f, |
| 3257 | struct pci_fixup *end) |
Thomas Petazzoni | 3d13731 | 2008-08-19 10:28:24 +0200 | [diff] [blame] | 3258 | { |
Myron Stowe | 2729d5b | 2012-07-09 15:36:02 -0600 | [diff] [blame] | 3259 | ktime_t calltime; |
| 3260 | |
Yinghai Lu | f4ca5c6 | 2012-02-23 23:46:49 -0800 | [diff] [blame] | 3261 | for (; f < end; f++) |
| 3262 | if ((f->class == (u32) (dev->class >> f->class_shift) || |
| 3263 | f->class == (u32) PCI_ANY_ID) && |
| 3264 | (f->vendor == dev->vendor || |
| 3265 | f->vendor == (u16) PCI_ANY_ID) && |
| 3266 | (f->device == dev->device || |
| 3267 | f->device == (u16) PCI_ANY_ID)) { |
Myron Stowe | 2729d5b | 2012-07-09 15:36:02 -0600 | [diff] [blame] | 3268 | calltime = fixup_debug_start(dev, f->hook); |
| 3269 | f->hook(dev); |
| 3270 | fixup_debug_report(dev, calltime, f->hook); |
Thomas Petazzoni | 3d13731 | 2008-08-19 10:28:24 +0200 | [diff] [blame] | 3271 | } |
Thomas Petazzoni | 3d13731 | 2008-08-19 10:28:24 +0200 | [diff] [blame] | 3272 | } |
| 3273 | |
| 3274 | extern struct pci_fixup __start_pci_fixups_early[]; |
| 3275 | extern struct pci_fixup __end_pci_fixups_early[]; |
| 3276 | extern struct pci_fixup __start_pci_fixups_header[]; |
| 3277 | extern struct pci_fixup __end_pci_fixups_header[]; |
| 3278 | extern struct pci_fixup __start_pci_fixups_final[]; |
| 3279 | extern struct pci_fixup __end_pci_fixups_final[]; |
| 3280 | extern struct pci_fixup __start_pci_fixups_enable[]; |
| 3281 | extern struct pci_fixup __end_pci_fixups_enable[]; |
| 3282 | extern struct pci_fixup __start_pci_fixups_resume[]; |
| 3283 | extern struct pci_fixup __end_pci_fixups_resume[]; |
| 3284 | extern struct pci_fixup __start_pci_fixups_resume_early[]; |
| 3285 | extern struct pci_fixup __end_pci_fixups_resume_early[]; |
| 3286 | extern struct pci_fixup __start_pci_fixups_suspend[]; |
| 3287 | extern struct pci_fixup __end_pci_fixups_suspend[]; |
Andreas Noever | 7d2a01b | 2014-06-03 22:04:09 +0200 | [diff] [blame] | 3288 | extern struct pci_fixup __start_pci_fixups_suspend_late[]; |
| 3289 | extern struct pci_fixup __end_pci_fixups_suspend_late[]; |
Thomas Petazzoni | 3d13731 | 2008-08-19 10:28:24 +0200 | [diff] [blame] | 3290 | |
Myron Stowe | 95df8b8 | 2012-07-13 14:29:00 -0600 | [diff] [blame] | 3291 | static bool pci_apply_fixup_final_quirks; |
Thomas Petazzoni | 3d13731 | 2008-08-19 10:28:24 +0200 | [diff] [blame] | 3292 | |
| 3293 | void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev) |
| 3294 | { |
| 3295 | struct pci_fixup *start, *end; |
| 3296 | |
Ryan Desfosses | 3c78bc6 | 2014-04-18 20:13:49 -0400 | [diff] [blame] | 3297 | switch (pass) { |
Thomas Petazzoni | 3d13731 | 2008-08-19 10:28:24 +0200 | [diff] [blame] | 3298 | case pci_fixup_early: |
| 3299 | start = __start_pci_fixups_early; |
| 3300 | end = __end_pci_fixups_early; |
| 3301 | break; |
| 3302 | |
| 3303 | case pci_fixup_header: |
| 3304 | start = __start_pci_fixups_header; |
| 3305 | end = __end_pci_fixups_header; |
| 3306 | break; |
| 3307 | |
| 3308 | case pci_fixup_final: |
Myron Stowe | 95df8b8 | 2012-07-13 14:29:00 -0600 | [diff] [blame] | 3309 | if (!pci_apply_fixup_final_quirks) |
| 3310 | return; |
Thomas Petazzoni | 3d13731 | 2008-08-19 10:28:24 +0200 | [diff] [blame] | 3311 | start = __start_pci_fixups_final; |
| 3312 | end = __end_pci_fixups_final; |
| 3313 | break; |
| 3314 | |
| 3315 | case pci_fixup_enable: |
| 3316 | start = __start_pci_fixups_enable; |
| 3317 | end = __end_pci_fixups_enable; |
| 3318 | break; |
| 3319 | |
| 3320 | case pci_fixup_resume: |
| 3321 | start = __start_pci_fixups_resume; |
| 3322 | end = __end_pci_fixups_resume; |
| 3323 | break; |
| 3324 | |
| 3325 | case pci_fixup_resume_early: |
| 3326 | start = __start_pci_fixups_resume_early; |
| 3327 | end = __end_pci_fixups_resume_early; |
| 3328 | break; |
| 3329 | |
| 3330 | case pci_fixup_suspend: |
| 3331 | start = __start_pci_fixups_suspend; |
| 3332 | end = __end_pci_fixups_suspend; |
| 3333 | break; |
| 3334 | |
Andreas Noever | 7d2a01b | 2014-06-03 22:04:09 +0200 | [diff] [blame] | 3335 | case pci_fixup_suspend_late: |
| 3336 | start = __start_pci_fixups_suspend_late; |
| 3337 | end = __end_pci_fixups_suspend_late; |
| 3338 | break; |
| 3339 | |
Thomas Petazzoni | 3d13731 | 2008-08-19 10:28:24 +0200 | [diff] [blame] | 3340 | default: |
| 3341 | /* stupid compiler warning, you would think with an enum... */ |
| 3342 | return; |
| 3343 | } |
| 3344 | pci_do_fixups(dev, start, end); |
| 3345 | } |
Rafael J. Wysocki | 93177a7 | 2010-01-02 22:57:24 +0100 | [diff] [blame] | 3346 | EXPORT_SYMBOL(pci_fixup_device); |
David Woodhouse | 8d86fb2 | 2009-10-12 12:48:43 +0100 | [diff] [blame] | 3347 | |
Myron Stowe | 735bff1 | 2012-07-09 15:36:46 -0600 | [diff] [blame] | 3348 | |
David Woodhouse | 0001026 | 2009-10-12 12:50:34 +0100 | [diff] [blame] | 3349 | static int __init pci_apply_final_quirks(void) |
David Woodhouse | 8d86fb2 | 2009-10-12 12:48:43 +0100 | [diff] [blame] | 3350 | { |
| 3351 | struct pci_dev *dev = NULL; |
Jesse Barnes | ac1aa47 | 2009-10-26 13:20:44 -0700 | [diff] [blame] | 3352 | u8 cls = 0; |
| 3353 | u8 tmp; |
| 3354 | |
| 3355 | if (pci_cache_line_size) |
| 3356 | printk(KERN_DEBUG "PCI: CLS %u bytes\n", |
| 3357 | pci_cache_line_size << 2); |
David Woodhouse | 8d86fb2 | 2009-10-12 12:48:43 +0100 | [diff] [blame] | 3358 | |
Myron Stowe | 95df8b8 | 2012-07-13 14:29:00 -0600 | [diff] [blame] | 3359 | pci_apply_fixup_final_quirks = true; |
Kulikov Vasiliy | 4e344b1 | 2010-07-03 20:04:39 +0400 | [diff] [blame] | 3360 | for_each_pci_dev(dev) { |
David Woodhouse | 8d86fb2 | 2009-10-12 12:48:43 +0100 | [diff] [blame] | 3361 | pci_fixup_device(pci_fixup_final, dev); |
Jesse Barnes | ac1aa47 | 2009-10-26 13:20:44 -0700 | [diff] [blame] | 3362 | /* |
| 3363 | * If arch hasn't set it explicitly yet, use the CLS |
| 3364 | * value shared by all PCI devices. If there's a |
| 3365 | * mismatch, fall back to the default value. |
| 3366 | */ |
| 3367 | if (!pci_cache_line_size) { |
| 3368 | pci_read_config_byte(dev, PCI_CACHE_LINE_SIZE, &tmp); |
| 3369 | if (!cls) |
| 3370 | cls = tmp; |
| 3371 | if (!tmp || cls == tmp) |
| 3372 | continue; |
| 3373 | |
Ryan Desfosses | 227f064 | 2014-04-18 20:13:50 -0400 | [diff] [blame] | 3374 | printk(KERN_DEBUG "PCI: CLS mismatch (%u != %u), using %u bytes\n", |
| 3375 | cls << 2, tmp << 2, |
Jesse Barnes | ac1aa47 | 2009-10-26 13:20:44 -0700 | [diff] [blame] | 3376 | pci_dfl_cache_line_size << 2); |
| 3377 | pci_cache_line_size = pci_dfl_cache_line_size; |
| 3378 | } |
| 3379 | } |
Myron Stowe | 735bff1 | 2012-07-09 15:36:46 -0600 | [diff] [blame] | 3380 | |
Jesse Barnes | ac1aa47 | 2009-10-26 13:20:44 -0700 | [diff] [blame] | 3381 | if (!pci_cache_line_size) { |
| 3382 | printk(KERN_DEBUG "PCI: CLS %u bytes, default %u\n", |
| 3383 | cls << 2, pci_dfl_cache_line_size << 2); |
Csaba Henk | 2820f33 | 2009-12-15 17:55:25 +0530 | [diff] [blame] | 3384 | pci_cache_line_size = cls ? cls : pci_dfl_cache_line_size; |
David Woodhouse | 8d86fb2 | 2009-10-12 12:48:43 +0100 | [diff] [blame] | 3385 | } |
| 3386 | |
| 3387 | return 0; |
| 3388 | } |
| 3389 | |
David Woodhouse | cf6f3bf | 2009-10-12 12:51:22 +0100 | [diff] [blame] | 3390 | fs_initcall_sync(pci_apply_final_quirks); |
Dexuan Cui | b9c3b26 | 2009-12-07 13:03:21 +0800 | [diff] [blame] | 3391 | |
| 3392 | /* |
| 3393 | * Followings are device-specific reset methods which can be used to |
| 3394 | * reset a single function if other methods (e.g. FLR, PM D0->D3) are |
| 3395 | * not available. |
| 3396 | */ |
Dexuan Cui | c763e7b | 2009-12-07 13:03:23 +0800 | [diff] [blame] | 3397 | static int reset_intel_82599_sfp_virtfn(struct pci_dev *dev, int probe) |
| 3398 | { |
Bjorn Helgaas | 76b57c6 | 2012-08-22 09:41:27 -0600 | [diff] [blame] | 3399 | /* |
| 3400 | * http://www.intel.com/content/dam/doc/datasheet/82599-10-gbe-controller-datasheet.pdf |
| 3401 | * |
| 3402 | * The 82599 supports FLR on VFs, but FLR support is reported only |
| 3403 | * in the PF DEVCAP (sec 9.3.10.4), not in the VF DEVCAP (sec 9.5). |
| 3404 | * Therefore, we can't use pcie_flr(), which checks the VF DEVCAP. |
| 3405 | */ |
| 3406 | |
Dexuan Cui | c763e7b | 2009-12-07 13:03:23 +0800 | [diff] [blame] | 3407 | if (probe) |
| 3408 | return 0; |
| 3409 | |
Casey Leedom | 4d708ab | 2013-08-06 15:48:39 +0530 | [diff] [blame] | 3410 | if (!pci_wait_for_pending_transaction(dev)) |
| 3411 | dev_err(&dev->dev, "transaction is not cleared; proceeding with reset anyway\n"); |
Bjorn Helgaas | 76b57c6 | 2012-08-22 09:41:27 -0600 | [diff] [blame] | 3412 | |
Bjorn Helgaas | 76b57c6 | 2012-08-22 09:41:27 -0600 | [diff] [blame] | 3413 | pcie_capability_set_word(dev, PCI_EXP_DEVCTL, PCI_EXP_DEVCTL_BCR_FLR); |
| 3414 | |
Dexuan Cui | c763e7b | 2009-12-07 13:03:23 +0800 | [diff] [blame] | 3415 | msleep(100); |
| 3416 | |
| 3417 | return 0; |
| 3418 | } |
| 3419 | |
Ville Syrjälä | aba72dd | 2015-11-04 23:19:49 +0200 | [diff] [blame] | 3420 | #define SOUTH_CHICKEN2 0xc2004 |
| 3421 | #define PCH_PP_STATUS 0xc7200 |
| 3422 | #define PCH_PP_CONTROL 0xc7204 |
Xudong Hao | df558de | 2012-04-27 09:16:46 -0600 | [diff] [blame] | 3423 | #define MSG_CTL 0x45010 |
| 3424 | #define NSDE_PWR_STATE 0xd0100 |
| 3425 | #define IGD_OPERATION_TIMEOUT 10000 /* set timeout 10 seconds */ |
| 3426 | |
| 3427 | static int reset_ivb_igd(struct pci_dev *dev, int probe) |
| 3428 | { |
| 3429 | void __iomem *mmio_base; |
| 3430 | unsigned long timeout; |
| 3431 | u32 val; |
| 3432 | |
| 3433 | if (probe) |
| 3434 | return 0; |
| 3435 | |
| 3436 | mmio_base = pci_iomap(dev, 0, 0); |
| 3437 | if (!mmio_base) |
| 3438 | return -ENOMEM; |
| 3439 | |
| 3440 | iowrite32(0x00000002, mmio_base + MSG_CTL); |
| 3441 | |
| 3442 | /* |
| 3443 | * Clobbering SOUTH_CHICKEN2 register is fine only if the next |
| 3444 | * driver loaded sets the right bits. However, this's a reset and |
| 3445 | * the bits have been set by i915 previously, so we clobber |
| 3446 | * SOUTH_CHICKEN2 register directly here. |
| 3447 | */ |
| 3448 | iowrite32(0x00000005, mmio_base + SOUTH_CHICKEN2); |
| 3449 | |
| 3450 | val = ioread32(mmio_base + PCH_PP_CONTROL) & 0xfffffffe; |
| 3451 | iowrite32(val, mmio_base + PCH_PP_CONTROL); |
| 3452 | |
| 3453 | timeout = jiffies + msecs_to_jiffies(IGD_OPERATION_TIMEOUT); |
| 3454 | do { |
| 3455 | val = ioread32(mmio_base + PCH_PP_STATUS); |
| 3456 | if ((val & 0xb0000000) == 0) |
| 3457 | goto reset_complete; |
| 3458 | msleep(10); |
| 3459 | } while (time_before(jiffies, timeout)); |
| 3460 | dev_warn(&dev->dev, "timeout during reset\n"); |
| 3461 | |
| 3462 | reset_complete: |
| 3463 | iowrite32(0x00000002, mmio_base + NSDE_PWR_STATE); |
| 3464 | |
| 3465 | pci_iounmap(dev, mmio_base); |
| 3466 | return 0; |
| 3467 | } |
| 3468 | |
Casey Leedom | 2c6217e | 2013-08-06 15:48:37 +0530 | [diff] [blame] | 3469 | /* |
| 3470 | * Device-specific reset method for Chelsio T4-based adapters. |
| 3471 | */ |
| 3472 | static int reset_chelsio_generic_dev(struct pci_dev *dev, int probe) |
| 3473 | { |
| 3474 | u16 old_command; |
| 3475 | u16 msix_flags; |
| 3476 | |
| 3477 | /* |
| 3478 | * If this isn't a Chelsio T4-based device, return -ENOTTY indicating |
| 3479 | * that we have no device-specific reset method. |
| 3480 | */ |
| 3481 | if ((dev->device & 0xf000) != 0x4000) |
| 3482 | return -ENOTTY; |
| 3483 | |
| 3484 | /* |
| 3485 | * If this is the "probe" phase, return 0 indicating that we can |
| 3486 | * reset this device. |
| 3487 | */ |
| 3488 | if (probe) |
| 3489 | return 0; |
| 3490 | |
| 3491 | /* |
| 3492 | * T4 can wedge if there are DMAs in flight within the chip and Bus |
| 3493 | * Master has been disabled. We need to have it on till the Function |
| 3494 | * Level Reset completes. (BUS_MASTER is disabled in |
| 3495 | * pci_reset_function()). |
| 3496 | */ |
| 3497 | pci_read_config_word(dev, PCI_COMMAND, &old_command); |
| 3498 | pci_write_config_word(dev, PCI_COMMAND, |
| 3499 | old_command | PCI_COMMAND_MASTER); |
| 3500 | |
| 3501 | /* |
| 3502 | * Perform the actual device function reset, saving and restoring |
| 3503 | * configuration information around the reset. |
| 3504 | */ |
| 3505 | pci_save_state(dev); |
| 3506 | |
| 3507 | /* |
| 3508 | * T4 also suffers a Head-Of-Line blocking problem if MSI-X interrupts |
| 3509 | * are disabled when an MSI-X interrupt message needs to be delivered. |
| 3510 | * So we briefly re-enable MSI-X interrupts for the duration of the |
| 3511 | * FLR. The pci_restore_state() below will restore the original |
| 3512 | * MSI-X state. |
| 3513 | */ |
| 3514 | pci_read_config_word(dev, dev->msix_cap+PCI_MSIX_FLAGS, &msix_flags); |
| 3515 | if ((msix_flags & PCI_MSIX_FLAGS_ENABLE) == 0) |
| 3516 | pci_write_config_word(dev, dev->msix_cap+PCI_MSIX_FLAGS, |
| 3517 | msix_flags | |
| 3518 | PCI_MSIX_FLAGS_ENABLE | |
| 3519 | PCI_MSIX_FLAGS_MASKALL); |
| 3520 | |
| 3521 | /* |
| 3522 | * Start of pcie_flr() code sequence. This reset code is a copy of |
| 3523 | * the guts of pcie_flr() because that's not an exported function. |
| 3524 | */ |
| 3525 | |
| 3526 | if (!pci_wait_for_pending_transaction(dev)) |
| 3527 | dev_err(&dev->dev, "transaction is not cleared; proceeding with reset anyway\n"); |
| 3528 | |
| 3529 | pcie_capability_set_word(dev, PCI_EXP_DEVCTL, PCI_EXP_DEVCTL_BCR_FLR); |
| 3530 | msleep(100); |
| 3531 | |
| 3532 | /* |
| 3533 | * End of pcie_flr() code sequence. |
| 3534 | */ |
| 3535 | |
| 3536 | /* |
| 3537 | * Restore the configuration information (BAR values, etc.) including |
| 3538 | * the original PCI Configuration Space Command word, and return |
| 3539 | * success. |
| 3540 | */ |
| 3541 | pci_restore_state(dev); |
| 3542 | pci_write_config_word(dev, PCI_COMMAND, old_command); |
| 3543 | return 0; |
| 3544 | } |
| 3545 | |
Dexuan Cui | c763e7b | 2009-12-07 13:03:23 +0800 | [diff] [blame] | 3546 | #define PCI_DEVICE_ID_INTEL_82599_SFP_VF 0x10ed |
Xudong Hao | df558de | 2012-04-27 09:16:46 -0600 | [diff] [blame] | 3547 | #define PCI_DEVICE_ID_INTEL_IVB_M_VGA 0x0156 |
| 3548 | #define PCI_DEVICE_ID_INTEL_IVB_M2_VGA 0x0166 |
Dexuan Cui | c763e7b | 2009-12-07 13:03:23 +0800 | [diff] [blame] | 3549 | |
Rafael J. Wysocki | 5b889bf | 2009-12-31 19:06:35 +0100 | [diff] [blame] | 3550 | static const struct pci_dev_reset_methods pci_dev_reset_methods[] = { |
Dexuan Cui | c763e7b | 2009-12-07 13:03:23 +0800 | [diff] [blame] | 3551 | { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82599_SFP_VF, |
| 3552 | reset_intel_82599_sfp_virtfn }, |
Xudong Hao | df558de | 2012-04-27 09:16:46 -0600 | [diff] [blame] | 3553 | { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IVB_M_VGA, |
| 3554 | reset_ivb_igd }, |
| 3555 | { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IVB_M2_VGA, |
| 3556 | reset_ivb_igd }, |
Casey Leedom | 2c6217e | 2013-08-06 15:48:37 +0530 | [diff] [blame] | 3557 | { PCI_VENDOR_ID_CHELSIO, PCI_ANY_ID, |
| 3558 | reset_chelsio_generic_dev }, |
Dexuan Cui | b9c3b26 | 2009-12-07 13:03:21 +0800 | [diff] [blame] | 3559 | { 0 } |
| 3560 | }; |
Rafael J. Wysocki | 5b889bf | 2009-12-31 19:06:35 +0100 | [diff] [blame] | 3561 | |
Xudong Hao | df558de | 2012-04-27 09:16:46 -0600 | [diff] [blame] | 3562 | /* |
| 3563 | * These device-specific reset methods are here rather than in a driver |
| 3564 | * because when a host assigns a device to a guest VM, the host may need |
| 3565 | * to reset the device but probably doesn't have a driver for it. |
| 3566 | */ |
Rafael J. Wysocki | 5b889bf | 2009-12-31 19:06:35 +0100 | [diff] [blame] | 3567 | int pci_dev_specific_reset(struct pci_dev *dev, int probe) |
| 3568 | { |
Linus Torvalds | df9d1e8 | 2009-12-31 16:44:43 -0800 | [diff] [blame] | 3569 | const struct pci_dev_reset_methods *i; |
Rafael J. Wysocki | 5b889bf | 2009-12-31 19:06:35 +0100 | [diff] [blame] | 3570 | |
| 3571 | for (i = pci_dev_reset_methods; i->reset; i++) { |
| 3572 | if ((i->vendor == dev->vendor || |
| 3573 | i->vendor == (u16)PCI_ANY_ID) && |
| 3574 | (i->device == dev->device || |
| 3575 | i->device == (u16)PCI_ANY_ID)) |
| 3576 | return i->reset(dev, probe); |
| 3577 | } |
| 3578 | |
| 3579 | return -ENOTTY; |
| 3580 | } |
Alex Williamson | 12ea6ca | 2012-06-11 05:26:55 +0000 | [diff] [blame] | 3581 | |
Alex Williamson | ec637fb | 2014-05-22 17:07:49 -0600 | [diff] [blame] | 3582 | static void quirk_dma_func0_alias(struct pci_dev *dev) |
| 3583 | { |
| 3584 | if (PCI_FUNC(dev->devfn) != 0) { |
| 3585 | dev->dma_alias_devfn = PCI_DEVFN(PCI_SLOT(dev->devfn), 0); |
| 3586 | dev->dev_flags |= PCI_DEV_FLAGS_DMA_ALIAS_DEVFN; |
| 3587 | } |
| 3588 | } |
| 3589 | |
| 3590 | /* |
| 3591 | * https://bugzilla.redhat.com/show_bug.cgi?id=605888 |
| 3592 | * |
| 3593 | * Some Ricoh devices use function 0 as the PCIe requester ID for DMA. |
| 3594 | */ |
| 3595 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_RICOH, 0xe832, quirk_dma_func0_alias); |
| 3596 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_RICOH, 0xe476, quirk_dma_func0_alias); |
| 3597 | |
Alex Williamson | cc346a4 | 2014-05-28 14:54:00 -0600 | [diff] [blame] | 3598 | static void quirk_dma_func1_alias(struct pci_dev *dev) |
| 3599 | { |
| 3600 | if (PCI_FUNC(dev->devfn) != 1) { |
| 3601 | dev->dma_alias_devfn = PCI_DEVFN(PCI_SLOT(dev->devfn), 1); |
| 3602 | dev->dev_flags |= PCI_DEV_FLAGS_DMA_ALIAS_DEVFN; |
| 3603 | } |
| 3604 | } |
| 3605 | |
| 3606 | /* |
| 3607 | * Marvell 88SE9123 uses function 1 as the requester ID for DMA. In some |
| 3608 | * SKUs function 1 is present and is a legacy IDE controller, in other |
| 3609 | * SKUs this function is not present, making this a ghost requester. |
| 3610 | * https://bugzilla.kernel.org/show_bug.cgi?id=42679 |
| 3611 | */ |
Sakari Ailus | 247de69 | 2015-05-22 00:03:38 +0300 | [diff] [blame] | 3612 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9120, |
| 3613 | quirk_dma_func1_alias); |
Alex Williamson | cc346a4 | 2014-05-28 14:54:00 -0600 | [diff] [blame] | 3614 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9123, |
| 3615 | quirk_dma_func1_alias); |
| 3616 | /* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c14 */ |
| 3617 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9130, |
| 3618 | quirk_dma_func1_alias); |
| 3619 | /* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c47 + c57 */ |
| 3620 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9172, |
| 3621 | quirk_dma_func1_alias); |
| 3622 | /* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c59 */ |
| 3623 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x917a, |
| 3624 | quirk_dma_func1_alias); |
| 3625 | /* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c46 */ |
| 3626 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x91a0, |
| 3627 | quirk_dma_func1_alias); |
| 3628 | /* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c49 */ |
| 3629 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9230, |
| 3630 | quirk_dma_func1_alias); |
Jérôme Carretero | c2e0fb9 | 2014-06-03 15:41:56 -0400 | [diff] [blame] | 3631 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TTI, 0x0642, |
| 3632 | quirk_dma_func1_alias); |
Alex Williamson | cc346a4 | 2014-05-28 14:54:00 -0600 | [diff] [blame] | 3633 | /* https://bugs.gentoo.org/show_bug.cgi?id=497630 */ |
| 3634 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_JMICRON, |
| 3635 | PCI_DEVICE_ID_JMICRON_JMB388_ESD, |
| 3636 | quirk_dma_func1_alias); |
Tim Sander | 8b9b963 | 2016-01-19 14:32:29 -0600 | [diff] [blame] | 3637 | /* https://bugzilla.kernel.org/show_bug.cgi?id=42679#c117 */ |
| 3638 | DECLARE_PCI_FIXUP_HEADER(0x1c28, /* Lite-On */ |
| 3639 | 0x0122, /* Plextor M6E (Marvell 88SS9183)*/ |
| 3640 | quirk_dma_func1_alias); |
Alex Williamson | cc346a4 | 2014-05-28 14:54:00 -0600 | [diff] [blame] | 3641 | |
Alex Williamson | ebdb51e | 2014-05-22 17:08:07 -0600 | [diff] [blame] | 3642 | /* |
Alex Williamson | d3d2ab4 | 2015-01-13 11:26:50 -0700 | [diff] [blame] | 3643 | * Some devices DMA with the wrong devfn, not just the wrong function. |
| 3644 | * quirk_fixed_dma_alias() uses this table to create fixed aliases, where |
| 3645 | * the alias is "fixed" and independent of the device devfn. |
| 3646 | * |
| 3647 | * For example, the Adaptec 3405 is a PCIe card with an Intel 80333 I/O |
| 3648 | * processor. To software, this appears as a PCIe-to-PCI/X bridge with a |
| 3649 | * single device on the secondary bus. In reality, the single exposed |
| 3650 | * device at 0e.0 is the Address Translation Unit (ATU) of the controller |
| 3651 | * that provides a bridge to the internal bus of the I/O processor. The |
| 3652 | * controller supports private devices, which can be hidden from PCI config |
| 3653 | * space. In the case of the Adaptec 3405, a private device at 01.0 |
| 3654 | * appears to be the DMA engine, which therefore needs to become a DMA |
| 3655 | * alias for the device. |
| 3656 | */ |
| 3657 | static const struct pci_device_id fixed_dma_alias_tbl[] = { |
| 3658 | { PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x0285, |
| 3659 | PCI_VENDOR_ID_ADAPTEC2, 0x02bb), /* Adaptec 3405 */ |
| 3660 | .driver_data = PCI_DEVFN(1, 0) }, |
| 3661 | { 0 } |
| 3662 | }; |
| 3663 | |
| 3664 | static void quirk_fixed_dma_alias(struct pci_dev *dev) |
| 3665 | { |
| 3666 | const struct pci_device_id *id; |
| 3667 | |
| 3668 | id = pci_match_id(fixed_dma_alias_tbl, dev); |
| 3669 | if (id) { |
| 3670 | dev->dma_alias_devfn = id->driver_data; |
| 3671 | dev->dev_flags |= PCI_DEV_FLAGS_DMA_ALIAS_DEVFN; |
| 3672 | dev_info(&dev->dev, "Enabling fixed DMA alias to %02x.%d\n", |
| 3673 | PCI_SLOT(dev->dma_alias_devfn), |
| 3674 | PCI_FUNC(dev->dma_alias_devfn)); |
| 3675 | } |
| 3676 | } |
| 3677 | |
| 3678 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ADAPTEC2, 0x0285, quirk_fixed_dma_alias); |
| 3679 | |
| 3680 | /* |
Alex Williamson | ebdb51e | 2014-05-22 17:08:07 -0600 | [diff] [blame] | 3681 | * A few PCIe-to-PCI bridges fail to expose a PCIe capability, resulting in |
| 3682 | * using the wrong DMA alias for the device. Some of these devices can be |
| 3683 | * used as either forward or reverse bridges, so we need to test whether the |
| 3684 | * device is operating in the correct mode. We could probably apply this |
| 3685 | * quirk to PCI_ANY_ID, but for now we'll just use known offenders. The test |
| 3686 | * is for a non-root, non-PCIe bridge where the upstream device is PCIe and |
| 3687 | * is not a PCIe-to-PCI bridge, then @pdev is actually a PCIe-to-PCI bridge. |
| 3688 | */ |
| 3689 | static void quirk_use_pcie_bridge_dma_alias(struct pci_dev *pdev) |
| 3690 | { |
| 3691 | if (!pci_is_root_bus(pdev->bus) && |
| 3692 | pdev->hdr_type == PCI_HEADER_TYPE_BRIDGE && |
| 3693 | !pci_is_pcie(pdev) && pci_is_pcie(pdev->bus->self) && |
| 3694 | pci_pcie_type(pdev->bus->self) != PCI_EXP_TYPE_PCI_BRIDGE) |
| 3695 | pdev->dev_flags |= PCI_DEV_FLAG_PCIE_BRIDGE_ALIAS; |
| 3696 | } |
| 3697 | /* ASM1083/1085, https://bugzilla.kernel.org/show_bug.cgi?id=44881#c46 */ |
| 3698 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ASMEDIA, 0x1080, |
| 3699 | quirk_use_pcie_bridge_dma_alias); |
| 3700 | /* Tundra 8113, https://bugzilla.kernel.org/show_bug.cgi?id=44881#c43 */ |
| 3701 | DECLARE_PCI_FIXUP_HEADER(0x10e3, 0x8113, quirk_use_pcie_bridge_dma_alias); |
Alex Williamson | 98ca50d | 2014-06-09 12:43:25 -0600 | [diff] [blame] | 3702 | /* ITE 8892, https://bugzilla.kernel.org/show_bug.cgi?id=73551 */ |
| 3703 | DECLARE_PCI_FIXUP_HEADER(0x1283, 0x8892, quirk_use_pcie_bridge_dma_alias); |
Alex Williamson | 8ab4abb | 2014-07-05 15:26:52 -0600 | [diff] [blame] | 3704 | /* Intel 82801, https://bugzilla.kernel.org/show_bug.cgi?id=44881#c49 */ |
| 3705 | DECLARE_PCI_FIXUP_HEADER(0x8086, 0x244e, quirk_use_pcie_bridge_dma_alias); |
Alex Williamson | ebdb51e | 2014-05-22 17:08:07 -0600 | [diff] [blame] | 3706 | |
Alex Williamson | 15b100d | 2013-06-27 16:40:00 -0600 | [diff] [blame] | 3707 | /* |
Krzysztof =?utf-8?Q?Ha=C5=82asa?= | 3657ceb | 2015-06-19 10:00:15 +0200 | [diff] [blame] | 3708 | * Intersil/Techwell TW686[4589]-based video capture cards have an empty (zero) |
| 3709 | * class code. Fix it. |
| 3710 | */ |
| 3711 | static void quirk_tw686x_class(struct pci_dev *pdev) |
| 3712 | { |
| 3713 | u32 class = pdev->class; |
| 3714 | |
| 3715 | /* Use "Multimedia controller" class */ |
| 3716 | pdev->class = (PCI_CLASS_MULTIMEDIA_OTHER << 8) | 0x01; |
| 3717 | dev_info(&pdev->dev, "TW686x PCI class overridden (%#08x -> %#08x)\n", |
| 3718 | class, pdev->class); |
| 3719 | } |
Bjorn Helgaas | 2b4aed1 | 2015-06-19 16:20:58 -0500 | [diff] [blame] | 3720 | DECLARE_PCI_FIXUP_CLASS_EARLY(0x1797, 0x6864, PCI_CLASS_NOT_DEFINED, 8, |
Krzysztof =?utf-8?Q?Ha=C5=82asa?= | 3657ceb | 2015-06-19 10:00:15 +0200 | [diff] [blame] | 3721 | quirk_tw686x_class); |
Bjorn Helgaas | 2b4aed1 | 2015-06-19 16:20:58 -0500 | [diff] [blame] | 3722 | DECLARE_PCI_FIXUP_CLASS_EARLY(0x1797, 0x6865, PCI_CLASS_NOT_DEFINED, 8, |
Krzysztof =?utf-8?Q?Ha=C5=82asa?= | 3657ceb | 2015-06-19 10:00:15 +0200 | [diff] [blame] | 3723 | quirk_tw686x_class); |
Bjorn Helgaas | 2b4aed1 | 2015-06-19 16:20:58 -0500 | [diff] [blame] | 3724 | DECLARE_PCI_FIXUP_CLASS_EARLY(0x1797, 0x6868, PCI_CLASS_NOT_DEFINED, 8, |
Krzysztof =?utf-8?Q?Ha=C5=82asa?= | 3657ceb | 2015-06-19 10:00:15 +0200 | [diff] [blame] | 3725 | quirk_tw686x_class); |
Bjorn Helgaas | 2b4aed1 | 2015-06-19 16:20:58 -0500 | [diff] [blame] | 3726 | DECLARE_PCI_FIXUP_CLASS_EARLY(0x1797, 0x6869, PCI_CLASS_NOT_DEFINED, 8, |
Krzysztof =?utf-8?Q?Ha=C5=82asa?= | 3657ceb | 2015-06-19 10:00:15 +0200 | [diff] [blame] | 3727 | quirk_tw686x_class); |
| 3728 | |
| 3729 | /* |
Hariprasad Shenai | c56d445 | 2015-10-18 19:55:04 +0530 | [diff] [blame] | 3730 | * Per PCIe r3.0, sec 2.2.9, "Completion headers must supply the same |
| 3731 | * values for the Attribute as were supplied in the header of the |
| 3732 | * corresponding Request, except as explicitly allowed when IDO is used." |
| 3733 | * |
| 3734 | * If a non-compliant device generates a completion with a different |
| 3735 | * attribute than the request, the receiver may accept it (which itself |
| 3736 | * seems non-compliant based on sec 2.3.2), or it may handle it as a |
| 3737 | * Malformed TLP or an Unexpected Completion, which will probably lead to a |
| 3738 | * device access timeout. |
| 3739 | * |
| 3740 | * If the non-compliant device generates completions with zero attributes |
| 3741 | * (instead of copying the attributes from the request), we can work around |
| 3742 | * this by disabling the "Relaxed Ordering" and "No Snoop" attributes in |
| 3743 | * upstream devices so they always generate requests with zero attributes. |
| 3744 | * |
| 3745 | * This affects other devices under the same Root Port, but since these |
| 3746 | * attributes are performance hints, there should be no functional problem. |
| 3747 | * |
| 3748 | * Note that Configuration Space accesses are never supposed to have TLP |
| 3749 | * Attributes, so we're safe waiting till after any Configuration Space |
| 3750 | * accesses to do the Root Port fixup. |
| 3751 | */ |
| 3752 | static void quirk_disable_root_port_attributes(struct pci_dev *pdev) |
| 3753 | { |
| 3754 | struct pci_dev *root_port = pci_find_pcie_root_port(pdev); |
| 3755 | |
| 3756 | if (!root_port) { |
| 3757 | dev_warn(&pdev->dev, "PCIe Completion erratum may cause device errors\n"); |
| 3758 | return; |
| 3759 | } |
| 3760 | |
| 3761 | dev_info(&root_port->dev, "Disabling No Snoop/Relaxed Ordering Attributes to avoid PCIe Completion erratum in %s\n", |
| 3762 | dev_name(&pdev->dev)); |
| 3763 | pcie_capability_clear_and_set_word(root_port, PCI_EXP_DEVCTL, |
| 3764 | PCI_EXP_DEVCTL_RELAX_EN | |
| 3765 | PCI_EXP_DEVCTL_NOSNOOP_EN, 0); |
| 3766 | } |
| 3767 | |
| 3768 | /* |
| 3769 | * The Chelsio T5 chip fails to copy TLP Attributes from a Request to the |
| 3770 | * Completion it generates. |
| 3771 | */ |
| 3772 | static void quirk_chelsio_T5_disable_root_port_attributes(struct pci_dev *pdev) |
| 3773 | { |
| 3774 | /* |
| 3775 | * This mask/compare operation selects for Physical Function 4 on a |
| 3776 | * T5. We only need to fix up the Root Port once for any of the |
| 3777 | * PFs. PF[0..3] have PCI Device IDs of 0x50xx, but PF4 is uniquely |
| 3778 | * 0x54xx so we use that one, |
| 3779 | */ |
| 3780 | if ((pdev->device & 0xff00) == 0x5400) |
| 3781 | quirk_disable_root_port_attributes(pdev); |
| 3782 | } |
| 3783 | DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_CHELSIO, PCI_ANY_ID, |
| 3784 | quirk_chelsio_T5_disable_root_port_attributes); |
| 3785 | |
| 3786 | /* |
Alex Williamson | 15b100d | 2013-06-27 16:40:00 -0600 | [diff] [blame] | 3787 | * AMD has indicated that the devices below do not support peer-to-peer |
| 3788 | * in any system where they are found in the southbridge with an AMD |
| 3789 | * IOMMU in the system. Multifunction devices that do not support |
| 3790 | * peer-to-peer between functions can claim to support a subset of ACS. |
| 3791 | * Such devices effectively enable request redirect (RR) and completion |
| 3792 | * redirect (CR) since all transactions are redirected to the upstream |
| 3793 | * root complex. |
| 3794 | * |
| 3795 | * http://permalink.gmane.org/gmane.comp.emulators.kvm.devel/94086 |
| 3796 | * http://permalink.gmane.org/gmane.comp.emulators.kvm.devel/94102 |
| 3797 | * http://permalink.gmane.org/gmane.comp.emulators.kvm.devel/99402 |
| 3798 | * |
| 3799 | * 1002:4385 SBx00 SMBus Controller |
| 3800 | * 1002:439c SB7x0/SB8x0/SB9x0 IDE Controller |
| 3801 | * 1002:4383 SBx00 Azalia (Intel HDA) |
| 3802 | * 1002:439d SB7x0/SB8x0/SB9x0 LPC host controller |
| 3803 | * 1002:4384 SBx00 PCI to PCI Bridge |
| 3804 | * 1002:4399 SB7x0/SB8x0/SB9x0 USB OHCI2 Controller |
Marti Raudsepp | 3587e62 | 2014-10-02 08:50:31 -0600 | [diff] [blame] | 3805 | * |
| 3806 | * https://bugzilla.kernel.org/show_bug.cgi?id=81841#c15 |
| 3807 | * |
| 3808 | * 1022:780f [AMD] FCH PCI Bridge |
| 3809 | * 1022:7809 [AMD] FCH USB OHCI Controller |
Alex Williamson | 15b100d | 2013-06-27 16:40:00 -0600 | [diff] [blame] | 3810 | */ |
| 3811 | static int pci_quirk_amd_sb_acs(struct pci_dev *dev, u16 acs_flags) |
| 3812 | { |
| 3813 | #ifdef CONFIG_ACPI |
| 3814 | struct acpi_table_header *header = NULL; |
| 3815 | acpi_status status; |
| 3816 | |
| 3817 | /* Targeting multifunction devices on the SB (appears on root bus) */ |
| 3818 | if (!dev->multifunction || !pci_is_root_bus(dev->bus)) |
| 3819 | return -ENODEV; |
| 3820 | |
| 3821 | /* The IVRS table describes the AMD IOMMU */ |
| 3822 | status = acpi_get_table("IVRS", 0, &header); |
| 3823 | if (ACPI_FAILURE(status)) |
| 3824 | return -ENODEV; |
| 3825 | |
| 3826 | /* Filter out flags not applicable to multifunction */ |
| 3827 | acs_flags &= (PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_EC | PCI_ACS_DT); |
| 3828 | |
| 3829 | return acs_flags & ~(PCI_ACS_RR | PCI_ACS_CR) ? 0 : 1; |
| 3830 | #else |
| 3831 | return -ENODEV; |
| 3832 | #endif |
| 3833 | } |
| 3834 | |
Manish Jaggi | b404bcf | 2016-01-30 01:33:58 +0530 | [diff] [blame^] | 3835 | static int pci_quirk_cavium_acs(struct pci_dev *dev, u16 acs_flags) |
| 3836 | { |
| 3837 | /* |
| 3838 | * Cavium devices matching this quirk do not perform peer-to-peer |
| 3839 | * with other functions, allowing masking out these bits as if they |
| 3840 | * were unimplemented in the ACS capability. |
| 3841 | */ |
| 3842 | acs_flags &= ~(PCI_ACS_SV | PCI_ACS_TB | PCI_ACS_RR | |
| 3843 | PCI_ACS_CR | PCI_ACS_UF | PCI_ACS_DT); |
| 3844 | |
| 3845 | return acs_flags ? 0 : 1; |
| 3846 | } |
| 3847 | |
Alex Williamson | d99321b | 2014-02-03 14:27:46 -0700 | [diff] [blame] | 3848 | /* |
| 3849 | * Many Intel PCH root ports do provide ACS-like features to disable peer |
| 3850 | * transactions and validate bus numbers in requests, but do not provide an |
| 3851 | * actual PCIe ACS capability. This is the list of device IDs known to fall |
| 3852 | * into that category as provided by Intel in Red Hat bugzilla 1037684. |
| 3853 | */ |
| 3854 | static const u16 pci_quirk_intel_pch_acs_ids[] = { |
| 3855 | /* Ibexpeak PCH */ |
| 3856 | 0x3b42, 0x3b43, 0x3b44, 0x3b45, 0x3b46, 0x3b47, 0x3b48, 0x3b49, |
| 3857 | 0x3b4a, 0x3b4b, 0x3b4c, 0x3b4d, 0x3b4e, 0x3b4f, 0x3b50, 0x3b51, |
| 3858 | /* Cougarpoint PCH */ |
| 3859 | 0x1c10, 0x1c11, 0x1c12, 0x1c13, 0x1c14, 0x1c15, 0x1c16, 0x1c17, |
| 3860 | 0x1c18, 0x1c19, 0x1c1a, 0x1c1b, 0x1c1c, 0x1c1d, 0x1c1e, 0x1c1f, |
| 3861 | /* Pantherpoint PCH */ |
| 3862 | 0x1e10, 0x1e11, 0x1e12, 0x1e13, 0x1e14, 0x1e15, 0x1e16, 0x1e17, |
| 3863 | 0x1e18, 0x1e19, 0x1e1a, 0x1e1b, 0x1e1c, 0x1e1d, 0x1e1e, 0x1e1f, |
| 3864 | /* Lynxpoint-H PCH */ |
| 3865 | 0x8c10, 0x8c11, 0x8c12, 0x8c13, 0x8c14, 0x8c15, 0x8c16, 0x8c17, |
| 3866 | 0x8c18, 0x8c19, 0x8c1a, 0x8c1b, 0x8c1c, 0x8c1d, 0x8c1e, 0x8c1f, |
| 3867 | /* Lynxpoint-LP PCH */ |
| 3868 | 0x9c10, 0x9c11, 0x9c12, 0x9c13, 0x9c14, 0x9c15, 0x9c16, 0x9c17, |
| 3869 | 0x9c18, 0x9c19, 0x9c1a, 0x9c1b, |
| 3870 | /* Wildcat PCH */ |
| 3871 | 0x9c90, 0x9c91, 0x9c92, 0x9c93, 0x9c94, 0x9c95, 0x9c96, 0x9c97, |
| 3872 | 0x9c98, 0x9c99, 0x9c9a, 0x9c9b, |
Alex Williamson | 1a30fd0 | 2014-03-31 12:21:38 -0600 | [diff] [blame] | 3873 | /* Patsburg (X79) PCH */ |
| 3874 | 0x1d10, 0x1d12, 0x1d14, 0x1d16, 0x1d18, 0x1d1a, 0x1d1c, 0x1d1e, |
Alex Williamson | 78e8835 | 2015-01-22 11:15:43 -0700 | [diff] [blame] | 3875 | /* Wellsburg (X99) PCH */ |
| 3876 | 0x8d10, 0x8d11, 0x8d12, 0x8d13, 0x8d14, 0x8d15, 0x8d16, 0x8d17, |
| 3877 | 0x8d18, 0x8d19, 0x8d1a, 0x8d1b, 0x8d1c, 0x8d1d, 0x8d1e, |
Alex Williamson | dca230d | 2015-05-01 13:20:13 -0600 | [diff] [blame] | 3878 | /* Lynx Point (9 series) PCH */ |
| 3879 | 0x8c90, 0x8c92, 0x8c94, 0x8c96, 0x8c98, 0x8c9a, 0x8c9c, 0x8c9e, |
Alex Williamson | d99321b | 2014-02-03 14:27:46 -0700 | [diff] [blame] | 3880 | }; |
| 3881 | |
| 3882 | static bool pci_quirk_intel_pch_acs_match(struct pci_dev *dev) |
| 3883 | { |
| 3884 | int i; |
| 3885 | |
| 3886 | /* Filter out a few obvious non-matches first */ |
| 3887 | if (!pci_is_pcie(dev) || pci_pcie_type(dev) != PCI_EXP_TYPE_ROOT_PORT) |
| 3888 | return false; |
| 3889 | |
| 3890 | for (i = 0; i < ARRAY_SIZE(pci_quirk_intel_pch_acs_ids); i++) |
| 3891 | if (pci_quirk_intel_pch_acs_ids[i] == dev->device) |
| 3892 | return true; |
| 3893 | |
| 3894 | return false; |
| 3895 | } |
| 3896 | |
| 3897 | #define INTEL_PCH_ACS_FLAGS (PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_UF | PCI_ACS_SV) |
| 3898 | |
| 3899 | static int pci_quirk_intel_pch_acs(struct pci_dev *dev, u16 acs_flags) |
| 3900 | { |
| 3901 | u16 flags = dev->dev_flags & PCI_DEV_FLAGS_ACS_ENABLED_QUIRK ? |
| 3902 | INTEL_PCH_ACS_FLAGS : 0; |
| 3903 | |
| 3904 | if (!pci_quirk_intel_pch_acs_match(dev)) |
| 3905 | return -ENOTTY; |
| 3906 | |
| 3907 | return acs_flags & ~flags ? 0 : 1; |
| 3908 | } |
| 3909 | |
Alex Williamson | 100ebb2 | 2014-09-26 17:07:59 -0600 | [diff] [blame] | 3910 | static int pci_quirk_mf_endpoint_acs(struct pci_dev *dev, u16 acs_flags) |
Alex Williamson | 89b51cb | 2014-09-17 08:59:36 -0600 | [diff] [blame] | 3911 | { |
| 3912 | /* |
| 3913 | * SV, TB, and UF are not relevant to multifunction endpoints. |
| 3914 | * |
Alex Williamson | 100ebb2 | 2014-09-26 17:07:59 -0600 | [diff] [blame] | 3915 | * Multifunction devices are only required to implement RR, CR, and DT |
| 3916 | * in their ACS capability if they support peer-to-peer transactions. |
| 3917 | * Devices matching this quirk have been verified by the vendor to not |
| 3918 | * perform peer-to-peer with other functions, allowing us to mask out |
| 3919 | * these bits as if they were unimplemented in the ACS capability. |
Alex Williamson | 89b51cb | 2014-09-17 08:59:36 -0600 | [diff] [blame] | 3920 | */ |
| 3921 | acs_flags &= ~(PCI_ACS_SV | PCI_ACS_TB | PCI_ACS_RR | |
| 3922 | PCI_ACS_CR | PCI_ACS_UF | PCI_ACS_DT); |
| 3923 | |
| 3924 | return acs_flags ? 0 : 1; |
| 3925 | } |
| 3926 | |
Alex Williamson | ad80575 | 2012-06-11 05:27:07 +0000 | [diff] [blame] | 3927 | static const struct pci_dev_acs_enabled { |
| 3928 | u16 vendor; |
| 3929 | u16 device; |
| 3930 | int (*acs_enabled)(struct pci_dev *dev, u16 acs_flags); |
| 3931 | } pci_dev_acs_enabled[] = { |
Alex Williamson | 15b100d | 2013-06-27 16:40:00 -0600 | [diff] [blame] | 3932 | { PCI_VENDOR_ID_ATI, 0x4385, pci_quirk_amd_sb_acs }, |
| 3933 | { PCI_VENDOR_ID_ATI, 0x439c, pci_quirk_amd_sb_acs }, |
| 3934 | { PCI_VENDOR_ID_ATI, 0x4383, pci_quirk_amd_sb_acs }, |
| 3935 | { PCI_VENDOR_ID_ATI, 0x439d, pci_quirk_amd_sb_acs }, |
| 3936 | { PCI_VENDOR_ID_ATI, 0x4384, pci_quirk_amd_sb_acs }, |
| 3937 | { PCI_VENDOR_ID_ATI, 0x4399, pci_quirk_amd_sb_acs }, |
Marti Raudsepp | 3587e62 | 2014-10-02 08:50:31 -0600 | [diff] [blame] | 3938 | { PCI_VENDOR_ID_AMD, 0x780f, pci_quirk_amd_sb_acs }, |
| 3939 | { PCI_VENDOR_ID_AMD, 0x7809, pci_quirk_amd_sb_acs }, |
Alex Williamson | 100ebb2 | 2014-09-26 17:07:59 -0600 | [diff] [blame] | 3940 | { PCI_VENDOR_ID_SOLARFLARE, 0x0903, pci_quirk_mf_endpoint_acs }, |
| 3941 | { PCI_VENDOR_ID_SOLARFLARE, 0x0923, pci_quirk_mf_endpoint_acs }, |
| 3942 | { PCI_VENDOR_ID_INTEL, 0x10C6, pci_quirk_mf_endpoint_acs }, |
| 3943 | { PCI_VENDOR_ID_INTEL, 0x10DB, pci_quirk_mf_endpoint_acs }, |
| 3944 | { PCI_VENDOR_ID_INTEL, 0x10DD, pci_quirk_mf_endpoint_acs }, |
| 3945 | { PCI_VENDOR_ID_INTEL, 0x10E1, pci_quirk_mf_endpoint_acs }, |
| 3946 | { PCI_VENDOR_ID_INTEL, 0x10F1, pci_quirk_mf_endpoint_acs }, |
| 3947 | { PCI_VENDOR_ID_INTEL, 0x10F7, pci_quirk_mf_endpoint_acs }, |
| 3948 | { PCI_VENDOR_ID_INTEL, 0x10F8, pci_quirk_mf_endpoint_acs }, |
| 3949 | { PCI_VENDOR_ID_INTEL, 0x10F9, pci_quirk_mf_endpoint_acs }, |
| 3950 | { PCI_VENDOR_ID_INTEL, 0x10FA, pci_quirk_mf_endpoint_acs }, |
| 3951 | { PCI_VENDOR_ID_INTEL, 0x10FB, pci_quirk_mf_endpoint_acs }, |
| 3952 | { PCI_VENDOR_ID_INTEL, 0x10FC, pci_quirk_mf_endpoint_acs }, |
| 3953 | { PCI_VENDOR_ID_INTEL, 0x1507, pci_quirk_mf_endpoint_acs }, |
| 3954 | { PCI_VENDOR_ID_INTEL, 0x1514, pci_quirk_mf_endpoint_acs }, |
| 3955 | { PCI_VENDOR_ID_INTEL, 0x151C, pci_quirk_mf_endpoint_acs }, |
| 3956 | { PCI_VENDOR_ID_INTEL, 0x1529, pci_quirk_mf_endpoint_acs }, |
| 3957 | { PCI_VENDOR_ID_INTEL, 0x152A, pci_quirk_mf_endpoint_acs }, |
| 3958 | { PCI_VENDOR_ID_INTEL, 0x154D, pci_quirk_mf_endpoint_acs }, |
| 3959 | { PCI_VENDOR_ID_INTEL, 0x154F, pci_quirk_mf_endpoint_acs }, |
| 3960 | { PCI_VENDOR_ID_INTEL, 0x1551, pci_quirk_mf_endpoint_acs }, |
| 3961 | { PCI_VENDOR_ID_INTEL, 0x1558, pci_quirk_mf_endpoint_acs }, |
Alex Williamson | d748804 | 2015-03-20 12:27:57 -0600 | [diff] [blame] | 3962 | /* 82580 */ |
| 3963 | { PCI_VENDOR_ID_INTEL, 0x1509, pci_quirk_mf_endpoint_acs }, |
| 3964 | { PCI_VENDOR_ID_INTEL, 0x150E, pci_quirk_mf_endpoint_acs }, |
| 3965 | { PCI_VENDOR_ID_INTEL, 0x150F, pci_quirk_mf_endpoint_acs }, |
| 3966 | { PCI_VENDOR_ID_INTEL, 0x1510, pci_quirk_mf_endpoint_acs }, |
| 3967 | { PCI_VENDOR_ID_INTEL, 0x1511, pci_quirk_mf_endpoint_acs }, |
| 3968 | { PCI_VENDOR_ID_INTEL, 0x1516, pci_quirk_mf_endpoint_acs }, |
| 3969 | { PCI_VENDOR_ID_INTEL, 0x1527, pci_quirk_mf_endpoint_acs }, |
| 3970 | /* 82576 */ |
| 3971 | { PCI_VENDOR_ID_INTEL, 0x10C9, pci_quirk_mf_endpoint_acs }, |
| 3972 | { PCI_VENDOR_ID_INTEL, 0x10E6, pci_quirk_mf_endpoint_acs }, |
| 3973 | { PCI_VENDOR_ID_INTEL, 0x10E7, pci_quirk_mf_endpoint_acs }, |
| 3974 | { PCI_VENDOR_ID_INTEL, 0x10E8, pci_quirk_mf_endpoint_acs }, |
| 3975 | { PCI_VENDOR_ID_INTEL, 0x150A, pci_quirk_mf_endpoint_acs }, |
| 3976 | { PCI_VENDOR_ID_INTEL, 0x150D, pci_quirk_mf_endpoint_acs }, |
| 3977 | { PCI_VENDOR_ID_INTEL, 0x1518, pci_quirk_mf_endpoint_acs }, |
| 3978 | { PCI_VENDOR_ID_INTEL, 0x1526, pci_quirk_mf_endpoint_acs }, |
| 3979 | /* 82575 */ |
| 3980 | { PCI_VENDOR_ID_INTEL, 0x10A7, pci_quirk_mf_endpoint_acs }, |
| 3981 | { PCI_VENDOR_ID_INTEL, 0x10A9, pci_quirk_mf_endpoint_acs }, |
| 3982 | { PCI_VENDOR_ID_INTEL, 0x10D6, pci_quirk_mf_endpoint_acs }, |
| 3983 | /* I350 */ |
| 3984 | { PCI_VENDOR_ID_INTEL, 0x1521, pci_quirk_mf_endpoint_acs }, |
| 3985 | { PCI_VENDOR_ID_INTEL, 0x1522, pci_quirk_mf_endpoint_acs }, |
| 3986 | { PCI_VENDOR_ID_INTEL, 0x1523, pci_quirk_mf_endpoint_acs }, |
| 3987 | { PCI_VENDOR_ID_INTEL, 0x1524, pci_quirk_mf_endpoint_acs }, |
| 3988 | /* 82571 (Quads omitted due to non-ACS switch) */ |
| 3989 | { PCI_VENDOR_ID_INTEL, 0x105E, pci_quirk_mf_endpoint_acs }, |
| 3990 | { PCI_VENDOR_ID_INTEL, 0x105F, pci_quirk_mf_endpoint_acs }, |
| 3991 | { PCI_VENDOR_ID_INTEL, 0x1060, pci_quirk_mf_endpoint_acs }, |
| 3992 | { PCI_VENDOR_ID_INTEL, 0x10D9, pci_quirk_mf_endpoint_acs }, |
Alex Williamson | 95e1658 | 2015-08-10 12:32:04 -0600 | [diff] [blame] | 3993 | /* I219 */ |
| 3994 | { PCI_VENDOR_ID_INTEL, 0x15b7, pci_quirk_mf_endpoint_acs }, |
| 3995 | { PCI_VENDOR_ID_INTEL, 0x15b8, pci_quirk_mf_endpoint_acs }, |
Alex Williamson | d748804 | 2015-03-20 12:27:57 -0600 | [diff] [blame] | 3996 | /* Intel PCH root ports */ |
Alex Williamson | d99321b | 2014-02-03 14:27:46 -0700 | [diff] [blame] | 3997 | { PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_quirk_intel_pch_acs }, |
Vasundhara Volam | 6a3763d | 2015-01-13 01:22:23 -0500 | [diff] [blame] | 3998 | { 0x19a2, 0x710, pci_quirk_mf_endpoint_acs }, /* Emulex BE3-R */ |
| 3999 | { 0x10df, 0x720, pci_quirk_mf_endpoint_acs }, /* Emulex Skyhawk-R */ |
Manish Jaggi | b404bcf | 2016-01-30 01:33:58 +0530 | [diff] [blame^] | 4000 | /* Cavium ThunderX */ |
| 4001 | { PCI_VENDOR_ID_CAVIUM, PCI_ANY_ID, pci_quirk_cavium_acs }, |
Alex Williamson | ad80575 | 2012-06-11 05:27:07 +0000 | [diff] [blame] | 4002 | { 0 } |
| 4003 | }; |
| 4004 | |
| 4005 | int pci_dev_specific_acs_enabled(struct pci_dev *dev, u16 acs_flags) |
| 4006 | { |
| 4007 | const struct pci_dev_acs_enabled *i; |
| 4008 | int ret; |
| 4009 | |
| 4010 | /* |
| 4011 | * Allow devices that do not expose standard PCIe ACS capabilities |
| 4012 | * or control to indicate their support here. Multi-function express |
| 4013 | * devices which do not allow internal peer-to-peer between functions, |
| 4014 | * but do not implement PCIe ACS may wish to return true here. |
| 4015 | */ |
| 4016 | for (i = pci_dev_acs_enabled; i->acs_enabled; i++) { |
| 4017 | if ((i->vendor == dev->vendor || |
| 4018 | i->vendor == (u16)PCI_ANY_ID) && |
| 4019 | (i->device == dev->device || |
| 4020 | i->device == (u16)PCI_ANY_ID)) { |
| 4021 | ret = i->acs_enabled(dev, acs_flags); |
| 4022 | if (ret >= 0) |
| 4023 | return ret; |
| 4024 | } |
| 4025 | } |
| 4026 | |
| 4027 | return -ENOTTY; |
| 4028 | } |
Alex Williamson | 2c74424 | 2014-02-03 14:27:33 -0700 | [diff] [blame] | 4029 | |
Alex Williamson | d99321b | 2014-02-03 14:27:46 -0700 | [diff] [blame] | 4030 | /* Config space offset of Root Complex Base Address register */ |
| 4031 | #define INTEL_LPC_RCBA_REG 0xf0 |
| 4032 | /* 31:14 RCBA address */ |
| 4033 | #define INTEL_LPC_RCBA_MASK 0xffffc000 |
| 4034 | /* RCBA Enable */ |
| 4035 | #define INTEL_LPC_RCBA_ENABLE (1 << 0) |
| 4036 | |
| 4037 | /* Backbone Scratch Pad Register */ |
| 4038 | #define INTEL_BSPR_REG 0x1104 |
| 4039 | /* Backbone Peer Non-Posted Disable */ |
| 4040 | #define INTEL_BSPR_REG_BPNPD (1 << 8) |
| 4041 | /* Backbone Peer Posted Disable */ |
| 4042 | #define INTEL_BSPR_REG_BPPD (1 << 9) |
| 4043 | |
| 4044 | /* Upstream Peer Decode Configuration Register */ |
| 4045 | #define INTEL_UPDCR_REG 0x1114 |
| 4046 | /* 5:0 Peer Decode Enable bits */ |
| 4047 | #define INTEL_UPDCR_REG_MASK 0x3f |
| 4048 | |
| 4049 | static int pci_quirk_enable_intel_lpc_acs(struct pci_dev *dev) |
| 4050 | { |
| 4051 | u32 rcba, bspr, updcr; |
| 4052 | void __iomem *rcba_mem; |
| 4053 | |
| 4054 | /* |
| 4055 | * Read the RCBA register from the LPC (D31:F0). PCH root ports |
| 4056 | * are D28:F* and therefore get probed before LPC, thus we can't |
| 4057 | * use pci_get_slot/pci_read_config_dword here. |
| 4058 | */ |
| 4059 | pci_bus_read_config_dword(dev->bus, PCI_DEVFN(31, 0), |
| 4060 | INTEL_LPC_RCBA_REG, &rcba); |
| 4061 | if (!(rcba & INTEL_LPC_RCBA_ENABLE)) |
| 4062 | return -EINVAL; |
| 4063 | |
| 4064 | rcba_mem = ioremap_nocache(rcba & INTEL_LPC_RCBA_MASK, |
| 4065 | PAGE_ALIGN(INTEL_UPDCR_REG)); |
| 4066 | if (!rcba_mem) |
| 4067 | return -ENOMEM; |
| 4068 | |
| 4069 | /* |
| 4070 | * The BSPR can disallow peer cycles, but it's set by soft strap and |
| 4071 | * therefore read-only. If both posted and non-posted peer cycles are |
| 4072 | * disallowed, we're ok. If either are allowed, then we need to use |
| 4073 | * the UPDCR to disable peer decodes for each port. This provides the |
| 4074 | * PCIe ACS equivalent of PCI_ACS_RR | PCI_ACS_CR | PCI_ACS_UF |
| 4075 | */ |
| 4076 | bspr = readl(rcba_mem + INTEL_BSPR_REG); |
| 4077 | bspr &= INTEL_BSPR_REG_BPNPD | INTEL_BSPR_REG_BPPD; |
| 4078 | if (bspr != (INTEL_BSPR_REG_BPNPD | INTEL_BSPR_REG_BPPD)) { |
| 4079 | updcr = readl(rcba_mem + INTEL_UPDCR_REG); |
| 4080 | if (updcr & INTEL_UPDCR_REG_MASK) { |
| 4081 | dev_info(&dev->dev, "Disabling UPDCR peer decodes\n"); |
| 4082 | updcr &= ~INTEL_UPDCR_REG_MASK; |
| 4083 | writel(updcr, rcba_mem + INTEL_UPDCR_REG); |
| 4084 | } |
| 4085 | } |
| 4086 | |
| 4087 | iounmap(rcba_mem); |
| 4088 | return 0; |
| 4089 | } |
| 4090 | |
| 4091 | /* Miscellaneous Port Configuration register */ |
| 4092 | #define INTEL_MPC_REG 0xd8 |
| 4093 | /* MPC: Invalid Receive Bus Number Check Enable */ |
| 4094 | #define INTEL_MPC_REG_IRBNCE (1 << 26) |
| 4095 | |
| 4096 | static void pci_quirk_enable_intel_rp_mpc_acs(struct pci_dev *dev) |
| 4097 | { |
| 4098 | u32 mpc; |
| 4099 | |
| 4100 | /* |
| 4101 | * When enabled, the IRBNCE bit of the MPC register enables the |
| 4102 | * equivalent of PCI ACS Source Validation (PCI_ACS_SV), which |
| 4103 | * ensures that requester IDs fall within the bus number range |
| 4104 | * of the bridge. Enable if not already. |
| 4105 | */ |
| 4106 | pci_read_config_dword(dev, INTEL_MPC_REG, &mpc); |
| 4107 | if (!(mpc & INTEL_MPC_REG_IRBNCE)) { |
| 4108 | dev_info(&dev->dev, "Enabling MPC IRBNCE\n"); |
| 4109 | mpc |= INTEL_MPC_REG_IRBNCE; |
| 4110 | pci_write_config_word(dev, INTEL_MPC_REG, mpc); |
| 4111 | } |
| 4112 | } |
| 4113 | |
| 4114 | static int pci_quirk_enable_intel_pch_acs(struct pci_dev *dev) |
| 4115 | { |
| 4116 | if (!pci_quirk_intel_pch_acs_match(dev)) |
| 4117 | return -ENOTTY; |
| 4118 | |
| 4119 | if (pci_quirk_enable_intel_lpc_acs(dev)) { |
| 4120 | dev_warn(&dev->dev, "Failed to enable Intel PCH ACS quirk\n"); |
| 4121 | return 0; |
| 4122 | } |
| 4123 | |
| 4124 | pci_quirk_enable_intel_rp_mpc_acs(dev); |
| 4125 | |
| 4126 | dev->dev_flags |= PCI_DEV_FLAGS_ACS_ENABLED_QUIRK; |
| 4127 | |
| 4128 | dev_info(&dev->dev, "Intel PCH root port ACS workaround enabled\n"); |
| 4129 | |
| 4130 | return 0; |
| 4131 | } |
| 4132 | |
Alex Williamson | 2c74424 | 2014-02-03 14:27:33 -0700 | [diff] [blame] | 4133 | static const struct pci_dev_enable_acs { |
| 4134 | u16 vendor; |
| 4135 | u16 device; |
| 4136 | int (*enable_acs)(struct pci_dev *dev); |
| 4137 | } pci_dev_enable_acs[] = { |
Alex Williamson | d99321b | 2014-02-03 14:27:46 -0700 | [diff] [blame] | 4138 | { PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_quirk_enable_intel_pch_acs }, |
Alex Williamson | 2c74424 | 2014-02-03 14:27:33 -0700 | [diff] [blame] | 4139 | { 0 } |
| 4140 | }; |
| 4141 | |
| 4142 | void pci_dev_specific_enable_acs(struct pci_dev *dev) |
| 4143 | { |
| 4144 | const struct pci_dev_enable_acs *i; |
| 4145 | int ret; |
| 4146 | |
| 4147 | for (i = pci_dev_enable_acs; i->enable_acs; i++) { |
| 4148 | if ((i->vendor == dev->vendor || |
| 4149 | i->vendor == (u16)PCI_ANY_ID) && |
| 4150 | (i->device == dev->device || |
| 4151 | i->device == (u16)PCI_ANY_ID)) { |
| 4152 | ret = i->enable_acs(dev); |
| 4153 | if (ret >= 0) |
| 4154 | return; |
| 4155 | } |
| 4156 | } |
| 4157 | } |
Tadeusz Struk | 3388a61 | 2015-08-07 11:34:42 -0700 | [diff] [blame] | 4158 | |
| 4159 | /* |
| 4160 | * The PCI capabilities list for Intel DH895xCC VFs (device id 0x0443) with |
| 4161 | * QuickAssist Technology (QAT) is prematurely terminated in hardware. The |
| 4162 | * Next Capability pointer in the MSI Capability Structure should point to |
| 4163 | * the PCIe Capability Structure but is incorrectly hardwired as 0 terminating |
| 4164 | * the list. |
| 4165 | */ |
| 4166 | static void quirk_intel_qat_vf_cap(struct pci_dev *pdev) |
| 4167 | { |
| 4168 | int pos, i = 0; |
| 4169 | u8 next_cap; |
| 4170 | u16 reg16, *cap; |
| 4171 | struct pci_cap_saved_state *state; |
| 4172 | |
| 4173 | /* Bail if the hardware bug is fixed */ |
| 4174 | if (pdev->pcie_cap || pci_find_capability(pdev, PCI_CAP_ID_EXP)) |
| 4175 | return; |
| 4176 | |
| 4177 | /* Bail if MSI Capability Structure is not found for some reason */ |
| 4178 | pos = pci_find_capability(pdev, PCI_CAP_ID_MSI); |
| 4179 | if (!pos) |
| 4180 | return; |
| 4181 | |
| 4182 | /* |
| 4183 | * Bail if Next Capability pointer in the MSI Capability Structure |
| 4184 | * is not the expected incorrect 0x00. |
| 4185 | */ |
| 4186 | pci_read_config_byte(pdev, pos + 1, &next_cap); |
| 4187 | if (next_cap) |
| 4188 | return; |
| 4189 | |
| 4190 | /* |
| 4191 | * PCIe Capability Structure is expected to be at 0x50 and should |
| 4192 | * terminate the list (Next Capability pointer is 0x00). Verify |
| 4193 | * Capability Id and Next Capability pointer is as expected. |
| 4194 | * Open-code some of set_pcie_port_type() and pci_cfg_space_size_ext() |
| 4195 | * to correctly set kernel data structures which have already been |
| 4196 | * set incorrectly due to the hardware bug. |
| 4197 | */ |
| 4198 | pos = 0x50; |
| 4199 | pci_read_config_word(pdev, pos, ®16); |
| 4200 | if (reg16 == (0x0000 | PCI_CAP_ID_EXP)) { |
| 4201 | u32 status; |
| 4202 | #ifndef PCI_EXP_SAVE_REGS |
| 4203 | #define PCI_EXP_SAVE_REGS 7 |
| 4204 | #endif |
| 4205 | int size = PCI_EXP_SAVE_REGS * sizeof(u16); |
| 4206 | |
| 4207 | pdev->pcie_cap = pos; |
| 4208 | pci_read_config_word(pdev, pos + PCI_EXP_FLAGS, ®16); |
| 4209 | pdev->pcie_flags_reg = reg16; |
| 4210 | pci_read_config_word(pdev, pos + PCI_EXP_DEVCAP, ®16); |
| 4211 | pdev->pcie_mpss = reg16 & PCI_EXP_DEVCAP_PAYLOAD; |
| 4212 | |
| 4213 | pdev->cfg_size = PCI_CFG_SPACE_EXP_SIZE; |
| 4214 | if (pci_read_config_dword(pdev, PCI_CFG_SPACE_SIZE, &status) != |
| 4215 | PCIBIOS_SUCCESSFUL || (status == 0xffffffff)) |
| 4216 | pdev->cfg_size = PCI_CFG_SPACE_SIZE; |
| 4217 | |
| 4218 | if (pci_find_saved_cap(pdev, PCI_CAP_ID_EXP)) |
| 4219 | return; |
| 4220 | |
| 4221 | /* |
| 4222 | * Save PCIE cap |
| 4223 | */ |
| 4224 | state = kzalloc(sizeof(*state) + size, GFP_KERNEL); |
| 4225 | if (!state) |
| 4226 | return; |
| 4227 | |
| 4228 | state->cap.cap_nr = PCI_CAP_ID_EXP; |
| 4229 | state->cap.cap_extended = 0; |
| 4230 | state->cap.size = size; |
| 4231 | cap = (u16 *)&state->cap.data[0]; |
| 4232 | pcie_capability_read_word(pdev, PCI_EXP_DEVCTL, &cap[i++]); |
| 4233 | pcie_capability_read_word(pdev, PCI_EXP_LNKCTL, &cap[i++]); |
| 4234 | pcie_capability_read_word(pdev, PCI_EXP_SLTCTL, &cap[i++]); |
| 4235 | pcie_capability_read_word(pdev, PCI_EXP_RTCTL, &cap[i++]); |
| 4236 | pcie_capability_read_word(pdev, PCI_EXP_DEVCTL2, &cap[i++]); |
| 4237 | pcie_capability_read_word(pdev, PCI_EXP_LNKCTL2, &cap[i++]); |
| 4238 | pcie_capability_read_word(pdev, PCI_EXP_SLTCTL2, &cap[i++]); |
| 4239 | hlist_add_head(&state->next, &pdev->saved_cap_space); |
| 4240 | } |
| 4241 | } |
| 4242 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x443, quirk_intel_qat_vf_cap); |