| /* |
| * Copyright © 2007 Intel Corporation |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| * DEALINGS IN THE SOFTWARE. |
| * |
| * Authors: |
| * Eric Anholt <eric@anholt.net> |
| * |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <stdarg.h> |
| #include <pciaccess.h> |
| #include <err.h> |
| #include "intel_chipset.h" |
| #include "intel_io.h" |
| #include "intel_reg.h" |
| |
| static void |
| print_clock(const char *name, int clock) { |
| if (clock == -1) |
| printf("%s clock: unknown", name); |
| else |
| printf("%s clock: %d Mhz", name, clock); |
| } |
| |
| static int |
| print_clock_info(struct pci_device *pci_dev) |
| { |
| uint32_t devid = pci_dev->device_id; |
| uint16_t gcfgc; |
| |
| if (IS_GM45(devid)) { |
| int core_clock = -1; |
| |
| pci_device_cfg_read_u16(pci_dev, &gcfgc, I915_GCFGC); |
| |
| switch (gcfgc & 0xf) { |
| case 8: |
| core_clock = 266; |
| break; |
| case 9: |
| core_clock = 320; |
| break; |
| case 11: |
| core_clock = 400; |
| break; |
| case 13: |
| core_clock = 533; |
| break; |
| } |
| print_clock("core", core_clock); |
| } else if (IS_965(devid) && IS_MOBILE(devid)) { |
| int render_clock = -1, sampler_clock = -1; |
| |
| pci_device_cfg_read_u16(pci_dev, &gcfgc, I915_GCFGC); |
| |
| switch (gcfgc & 0xf) { |
| case 2: |
| render_clock = 250; sampler_clock = 267; |
| break; |
| case 3: |
| render_clock = 320; sampler_clock = 333; |
| break; |
| case 4: |
| render_clock = 400; sampler_clock = 444; |
| break; |
| case 5: |
| render_clock = 500; sampler_clock = 533; |
| break; |
| } |
| |
| print_clock("render", render_clock); |
| printf(" "); |
| print_clock("sampler", sampler_clock); |
| } else if (IS_945(devid) && IS_MOBILE(devid)) { |
| int render_clock = -1, display_clock = -1; |
| |
| pci_device_cfg_read_u16(pci_dev, &gcfgc, I915_GCFGC); |
| |
| switch (gcfgc & 0x7) { |
| case 0: |
| render_clock = 166; |
| break; |
| case 1: |
| render_clock = 200; |
| break; |
| case 3: |
| render_clock = 250; |
| break; |
| case 5: |
| render_clock = 400; |
| break; |
| } |
| |
| switch (gcfgc & 0x70) { |
| case 0: |
| display_clock = 200; |
| break; |
| case 4: |
| display_clock = 320; |
| break; |
| } |
| if (gcfgc & (1 << 7)) |
| display_clock = 133; |
| |
| print_clock("render", render_clock); |
| printf(" "); |
| print_clock("display", display_clock); |
| } else if (IS_915(devid) && IS_MOBILE(devid)) { |
| int render_clock = -1, display_clock = -1; |
| |
| pci_device_cfg_read_u16(pci_dev, &gcfgc, I915_GCFGC); |
| |
| switch (gcfgc & 0x7) { |
| case 0: |
| render_clock = 160; |
| break; |
| case 1: |
| render_clock = 190; |
| break; |
| case 4: |
| render_clock = 333; |
| break; |
| } |
| if (gcfgc & (1 << 13)) |
| render_clock = 133; |
| |
| switch (gcfgc & 0x70) { |
| case 0: |
| display_clock = 190; |
| break; |
| case 4: |
| display_clock = 333; |
| break; |
| } |
| if (gcfgc & (1 << 7)) |
| display_clock = 133; |
| |
| print_clock("render", render_clock); |
| printf(" "); |
| print_clock("display", display_clock); |
| } |
| |
| printf("\n"); |
| return -1; |
| } |
| |
| int main(int argc, char **argv) |
| { |
| struct pci_device *dev, *bridge; |
| int error; |
| uint8_t stepping; |
| const char *step_desc = "??"; |
| |
| error = pci_system_init(); |
| if (error != 0) { |
| fprintf(stderr, "Couldn't initialize PCI system: %s\n", |
| strerror(error)); |
| exit(1); |
| } |
| |
| /* Grab the graphics card */ |
| dev = pci_device_find_by_slot(0, 0, 2, 0); |
| if (dev == NULL) |
| errx(1, "Couldn't find graphics card"); |
| |
| error = pci_device_probe(dev); |
| if (error != 0) { |
| fprintf(stderr, "Couldn't probe graphics card: %s\n", |
| strerror(error)); |
| exit(1); |
| } |
| |
| if (dev->vendor_id != 0x8086) |
| errx(1, "Graphics card is non-intel"); |
| |
| bridge = pci_device_find_by_slot(0, 0, 0, 0); |
| if (dev == NULL) |
| errx(1, "Couldn't bridge"); |
| |
| error = pci_device_cfg_read_u8(bridge, &stepping, 8); |
| if (error != 0) { |
| fprintf(stderr, "Couldn't read revision ID: %s\n", |
| strerror(error)); |
| exit(1); |
| } |
| |
| switch (dev->device_id) { |
| case PCI_CHIP_I915_G: |
| if (stepping < 0x04) |
| step_desc = "<B1"; |
| else if (stepping == 0x04) |
| step_desc = "B1"; |
| else if (stepping == 0x0e) |
| step_desc = "C2"; |
| else if (stepping > 0x0e) |
| step_desc = ">C2"; |
| else |
| step_desc = ">B1 <C2"; |
| break; |
| case PCI_CHIP_I915_GM: |
| if (stepping < 0x03) |
| step_desc = "<B1"; |
| else if (stepping == 0x03) |
| step_desc = "B1/C0"; |
| else if (stepping == 0x04) |
| step_desc = "C1/C2"; |
| else |
| step_desc = ">C2"; |
| break; |
| case PCI_CHIP_I945_GM: |
| if (stepping < 0x03) |
| step_desc = "<A3"; |
| else if (stepping == 0x03) |
| step_desc = "A3"; |
| else |
| step_desc = ">A3"; |
| break; |
| case PCI_CHIP_I965_G: |
| case PCI_CHIP_I965_Q: |
| if (stepping < 0x02) |
| step_desc = "<C1"; |
| else if (stepping == 0x02) |
| step_desc = "C1/C2"; |
| else |
| step_desc = ">C2"; |
| break; |
| case PCI_CHIP_I965_GM: |
| if (stepping < 0x03) |
| step_desc = "<C0"; |
| else if (stepping == 0x03) |
| step_desc = "C0"; |
| else |
| step_desc = ">C0"; |
| break; |
| case PCI_CHIP_I965_G_1: |
| if (stepping < 0x03) |
| step_desc = "<E0"; |
| else if (stepping == 0x03) |
| step_desc = "E0"; |
| else |
| step_desc = ">E0"; |
| break; |
| case PCI_CHIP_GM45_GM: |
| if (stepping < 0x07) |
| step_desc = "<B3"; |
| else if (stepping == 0x03) |
| step_desc = "B3"; |
| else |
| step_desc = ">B3"; |
| break; |
| case PCI_CHIP_G45_G: |
| case PCI_CHIP_Q45_G: |
| case PCI_CHIP_G41_G: |
| if (stepping < 0x02) |
| step_desc = "<A2"; |
| else if (stepping == 0x02) |
| step_desc = "A2"; |
| else if (stepping == 0x03) |
| step_desc = "A3"; |
| else |
| step_desc = ">A3"; |
| break; |
| } |
| |
| printf("Vendor: 0x%04x, Device: 0x%04x, Revision: 0x%02x (%s)\n", |
| dev->vendor_id, |
| dev->device_id, |
| stepping, |
| step_desc); |
| |
| print_clock_info(dev); |
| |
| return 0; |
| } |