Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public |
| 3 | * License. See the file "COPYING" in the main directory of this archive |
| 4 | * for more details. |
| 5 | * |
| 6 | * SGI UV architectural definitions |
| 7 | * |
Russ Anderson | c8f730b | 2010-10-26 16:27:28 -0500 | [diff] [blame] | 8 | * Copyright (C) 2007-2010 Silicon Graphics, Inc. All rights reserved. |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 9 | */ |
| 10 | |
H. Peter Anvin | 05e4d31 | 2008-10-23 00:01:39 -0700 | [diff] [blame] | 11 | #ifndef _ASM_X86_UV_UV_HUB_H |
| 12 | #define _ASM_X86_UV_UV_HUB_H |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 13 | |
Jack Steiner | bc5d994 | 2009-04-02 16:59:00 -0700 | [diff] [blame] | 14 | #ifdef CONFIG_X86_64 |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 15 | #include <linux/numa.h> |
| 16 | #include <linux/percpu.h> |
Mike Travis | c08b6ac | 2008-10-30 11:33:19 -0700 | [diff] [blame] | 17 | #include <linux/timer.h> |
Jack Steiner | 8dc579e | 2009-09-10 09:31:49 -0500 | [diff] [blame] | 18 | #include <linux/io.h> |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 19 | #include <asm/types.h> |
| 20 | #include <asm/percpu.h> |
Jack Steiner | 66666e5 | 2009-04-02 16:59:03 -0700 | [diff] [blame] | 21 | #include <asm/uv/uv_mmrs.h> |
Robin Holt | 02dd0a0 | 2009-10-20 14:36:15 -0500 | [diff] [blame] | 22 | #include <asm/irq_vectors.h> |
| 23 | #include <asm/io_apic.h> |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 24 | |
| 25 | |
| 26 | /* |
| 27 | * Addressing Terminology |
| 28 | * |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 29 | * M - The low M bits of a physical address represent the offset |
| 30 | * into the blade local memory. RAM memory on a blade is physically |
| 31 | * contiguous (although various IO spaces may punch holes in |
| 32 | * it).. |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 33 | * |
Mike Travis | 39d3077 | 2009-12-28 13:28:25 -0800 | [diff] [blame] | 34 | * N - Number of bits in the node portion of a socket physical |
| 35 | * address. |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 36 | * |
Mike Travis | 39d3077 | 2009-12-28 13:28:25 -0800 | [diff] [blame] | 37 | * NASID - network ID of a router, Mbrick or Cbrick. Nasid values of |
| 38 | * routers always have low bit of 1, C/MBricks have low bit |
| 39 | * equal to 0. Most addressing macros that target UV hub chips |
| 40 | * right shift the NASID by 1 to exclude the always-zero bit. |
| 41 | * NASIDs contain up to 15 bits. |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 42 | * |
| 43 | * GNODE - NASID right shifted by 1 bit. Most mmrs contain gnodes instead |
| 44 | * of nasids. |
| 45 | * |
Mike Travis | 39d3077 | 2009-12-28 13:28:25 -0800 | [diff] [blame] | 46 | * PNODE - the low N bits of the GNODE. The PNODE is the most useful variant |
| 47 | * of the nasid for socket usage. |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 48 | * |
Jack Steiner | 6a469e4 | 2011-09-20 13:55:04 -0700 | [diff] [blame] | 49 | * GPA - (global physical address) a socket physical address converted |
| 50 | * so that it can be used by the GRU as a global address. Socket |
| 51 | * physical addresses 1) need additional NASID (node) bits added |
| 52 | * to the high end of the address, and 2) unaliased if the |
| 53 | * partition does not have a physical address 0. In addition, on |
| 54 | * UV2 rev 1, GPAs need the gnode left shifted to bits 39 or 40. |
| 55 | * |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 56 | * |
| 57 | * NumaLink Global Physical Address Format: |
| 58 | * +--------------------------------+---------------------+ |
| 59 | * |00..000| GNODE | NodeOffset | |
| 60 | * +--------------------------------+---------------------+ |
| 61 | * |<-------53 - M bits --->|<--------M bits -----> |
| 62 | * |
| 63 | * M - number of node offset bits (35 .. 40) |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 64 | * |
| 65 | * |
| 66 | * Memory/UV-HUB Processor Socket Address Format: |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 67 | * +----------------+---------------+---------------------+ |
| 68 | * |00..000000000000| PNODE | NodeOffset | |
| 69 | * +----------------+---------------+---------------------+ |
| 70 | * <--- N bits --->|<--------M bits -----> |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 71 | * |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 72 | * M - number of node offset bits (35 .. 40) |
| 73 | * N - number of PNODE bits (0 .. 10) |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 74 | * |
| 75 | * Note: M + N cannot currently exceed 44 (x86_64) or 46 (IA64). |
| 76 | * The actual values are configuration dependent and are set at |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 77 | * boot time. M & N values are set by the hardware/BIOS at boot. |
| 78 | * |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 79 | * |
| 80 | * APICID format |
Mike Travis | 39d3077 | 2009-12-28 13:28:25 -0800 | [diff] [blame] | 81 | * NOTE!!!!!! This is the current format of the APICID. However, code |
| 82 | * should assume that this will change in the future. Use functions |
| 83 | * in this file for all APICID bit manipulations and conversion. |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 84 | * |
Mike Travis | 39d3077 | 2009-12-28 13:28:25 -0800 | [diff] [blame] | 85 | * 1111110000000000 |
| 86 | * 5432109876543210 |
Jack Steiner | 2a91959 | 2011-05-11 12:50:28 -0500 | [diff] [blame] | 87 | * pppppppppplc0cch Nehalem-EX (12 bits in hdw reg) |
| 88 | * ppppppppplcc0cch Westmere-EX (12 bits in hdw reg) |
| 89 | * pppppppppppcccch SandyBridge (15 bits in hdw reg) |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 90 | * sssssssssss |
| 91 | * |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 92 | * p = pnode bits |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 93 | * l = socket number on board |
| 94 | * c = core |
| 95 | * h = hyperthread |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 96 | * s = bits that are in the SOCKET_ID CSR |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 97 | * |
Jack Steiner | 2a91959 | 2011-05-11 12:50:28 -0500 | [diff] [blame] | 98 | * Note: Processor may support fewer bits in the APICID register. The ACPI |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 99 | * tables hold all 16 bits. Software needs to be aware of this. |
| 100 | * |
Mike Travis | 39d3077 | 2009-12-28 13:28:25 -0800 | [diff] [blame] | 101 | * Unless otherwise specified, all references to APICID refer to |
| 102 | * the FULL value contained in ACPI tables, not the subset in the |
| 103 | * processor APICID register. |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 104 | */ |
| 105 | |
| 106 | |
| 107 | /* |
| 108 | * Maximum number of bricks in all partitions and in all coherency domains. |
| 109 | * This is the total number of bricks accessible in the numalink fabric. It |
| 110 | * includes all C & M bricks. Routers are NOT included. |
| 111 | * |
| 112 | * This value is also the value of the maximum number of non-router NASIDs |
| 113 | * in the numalink fabric. |
| 114 | * |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 115 | * NOTE: a brick may contain 1 or 2 OS nodes. Don't get these confused. |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 116 | */ |
| 117 | #define UV_MAX_NUMALINK_BLADES 16384 |
| 118 | |
| 119 | /* |
| 120 | * Maximum number of C/Mbricks within a software SSI (hardware may support |
| 121 | * more). |
| 122 | */ |
| 123 | #define UV_MAX_SSI_BLADES 256 |
| 124 | |
| 125 | /* |
| 126 | * The largest possible NASID of a C or M brick (+ 2) |
| 127 | */ |
Robin Holt | 1d21e6e | 2009-10-16 06:29:20 -0500 | [diff] [blame] | 128 | #define UV_MAX_NASID_VALUE (UV_MAX_NUMALINK_BLADES * 2) |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 129 | |
Mike Travis | 7f1baa0 | 2008-10-24 15:24:29 -0700 | [diff] [blame] | 130 | struct uv_scir_s { |
| 131 | struct timer_list timer; |
| 132 | unsigned long offset; |
| 133 | unsigned long last; |
| 134 | unsigned long idle_on; |
| 135 | unsigned long idle_off; |
| 136 | unsigned char state; |
| 137 | unsigned char enabled; |
| 138 | }; |
| 139 | |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 140 | /* |
| 141 | * The following defines attributes of the HUB chip. These attributes are |
| 142 | * frequently referenced and are kept in the per-cpu data areas of each cpu. |
| 143 | * They are kept together in a struct to minimize cache misses. |
| 144 | */ |
| 145 | struct uv_hub_info_s { |
Mike Travis | 69a72a0 | 2008-10-27 07:51:20 -0700 | [diff] [blame] | 146 | unsigned long global_mmr_base; |
| 147 | unsigned long gpa_mask; |
Jack Steiner | c4ed3f0 | 2009-06-08 10:44:05 -0500 | [diff] [blame] | 148 | unsigned int gnode_extra; |
Jack Steiner | 2a91959 | 2011-05-11 12:50:28 -0500 | [diff] [blame] | 149 | unsigned char hub_revision; |
| 150 | unsigned char apic_pnode_shift; |
Jack Steiner | 6a469e4 | 2011-09-20 13:55:04 -0700 | [diff] [blame] | 151 | unsigned char m_shift; |
| 152 | unsigned char n_lshift; |
Mike Travis | 69a72a0 | 2008-10-27 07:51:20 -0700 | [diff] [blame] | 153 | unsigned long gnode_upper; |
| 154 | unsigned long lowmem_remap_top; |
| 155 | unsigned long lowmem_remap_base; |
| 156 | unsigned short pnode; |
| 157 | unsigned short pnode_mask; |
| 158 | unsigned short coherency_domain_number; |
| 159 | unsigned short numa_blade_id; |
| 160 | unsigned char blade_processor_id; |
| 161 | unsigned char m_val; |
| 162 | unsigned char n_val; |
| 163 | struct uv_scir_s scir; |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 164 | }; |
Mike Travis | 7f1baa0 | 2008-10-24 15:24:29 -0700 | [diff] [blame] | 165 | |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 166 | DECLARE_PER_CPU(struct uv_hub_info_s, __uv_hub_info); |
Mike Travis | 39d3077 | 2009-12-28 13:28:25 -0800 | [diff] [blame] | 167 | #define uv_hub_info (&__get_cpu_var(__uv_hub_info)) |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 168 | #define uv_cpu_hub_info(cpu) (&per_cpu(__uv_hub_info, cpu)) |
| 169 | |
Jack Steiner | 2a91959 | 2011-05-11 12:50:28 -0500 | [diff] [blame] | 170 | /* |
| 171 | * Hub revisions less than UV2_HUB_REVISION_BASE are UV1 hubs. All UV2 |
| 172 | * hubs have revision numbers greater than or equal to UV2_HUB_REVISION_BASE. |
| 173 | * This is a software convention - NOT the hardware revision numbers in |
| 174 | * the hub chip. |
| 175 | */ |
| 176 | #define UV1_HUB_REVISION_BASE 1 |
| 177 | #define UV2_HUB_REVISION_BASE 3 |
| 178 | |
| 179 | static inline int is_uv1_hub(void) |
| 180 | { |
| 181 | return uv_hub_info->hub_revision < UV2_HUB_REVISION_BASE; |
| 182 | } |
| 183 | |
| 184 | static inline int is_uv2_hub(void) |
| 185 | { |
| 186 | return uv_hub_info->hub_revision >= UV2_HUB_REVISION_BASE; |
| 187 | } |
| 188 | |
Jack Steiner | 6a469e4 | 2011-09-20 13:55:04 -0700 | [diff] [blame] | 189 | static inline int is_uv2_1_hub(void) |
| 190 | { |
| 191 | return uv_hub_info->hub_revision == UV2_HUB_REVISION_BASE; |
| 192 | } |
| 193 | |
| 194 | static inline int is_uv2_2_hub(void) |
| 195 | { |
| 196 | return uv_hub_info->hub_revision == UV2_HUB_REVISION_BASE + 1; |
| 197 | } |
| 198 | |
Russ Anderson | c8f730b | 2010-10-26 16:27:28 -0500 | [diff] [blame] | 199 | union uvh_apicid { |
| 200 | unsigned long v; |
| 201 | struct uvh_apicid_s { |
| 202 | unsigned long local_apic_mask : 24; |
| 203 | unsigned long local_apic_shift : 5; |
| 204 | unsigned long unused1 : 3; |
| 205 | unsigned long pnode_mask : 24; |
| 206 | unsigned long pnode_shift : 5; |
| 207 | unsigned long unused2 : 3; |
| 208 | } s; |
| 209 | }; |
| 210 | |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 211 | /* |
| 212 | * Local & Global MMR space macros. |
Mike Travis | 39d3077 | 2009-12-28 13:28:25 -0800 | [diff] [blame] | 213 | * Note: macros are intended to be used ONLY by inline functions |
| 214 | * in this file - not by other kernel code. |
| 215 | * n - NASID (full 15-bit global nasid) |
| 216 | * g - GNODE (full 15-bit global nasid, right shifted 1) |
| 217 | * p - PNODE (local part of nsids, right shifted 1) |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 218 | */ |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 219 | #define UV_NASID_TO_PNODE(n) (((n) >> 1) & uv_hub_info->pnode_mask) |
Jack Steiner | c4ed3f0 | 2009-06-08 10:44:05 -0500 | [diff] [blame] | 220 | #define UV_PNODE_TO_GNODE(p) ((p) |uv_hub_info->gnode_extra) |
| 221 | #define UV_PNODE_TO_NASID(p) (UV_PNODE_TO_GNODE(p) << 1) |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 222 | |
Jack Steiner | 2a91959 | 2011-05-11 12:50:28 -0500 | [diff] [blame] | 223 | #define UV1_LOCAL_MMR_BASE 0xf4000000UL |
| 224 | #define UV1_GLOBAL_MMR32_BASE 0xf8000000UL |
| 225 | #define UV1_LOCAL_MMR_SIZE (64UL * 1024 * 1024) |
| 226 | #define UV1_GLOBAL_MMR32_SIZE (64UL * 1024 * 1024) |
| 227 | |
| 228 | #define UV2_LOCAL_MMR_BASE 0xfa000000UL |
| 229 | #define UV2_GLOBAL_MMR32_BASE 0xfc000000UL |
| 230 | #define UV2_LOCAL_MMR_SIZE (32UL * 1024 * 1024) |
| 231 | #define UV2_GLOBAL_MMR32_SIZE (32UL * 1024 * 1024) |
| 232 | |
| 233 | #define UV_LOCAL_MMR_BASE (is_uv1_hub() ? UV1_LOCAL_MMR_BASE \ |
| 234 | : UV2_LOCAL_MMR_BASE) |
| 235 | #define UV_GLOBAL_MMR32_BASE (is_uv1_hub() ? UV1_GLOBAL_MMR32_BASE \ |
| 236 | : UV2_GLOBAL_MMR32_BASE) |
| 237 | #define UV_LOCAL_MMR_SIZE (is_uv1_hub() ? UV1_LOCAL_MMR_SIZE : \ |
| 238 | UV2_LOCAL_MMR_SIZE) |
| 239 | #define UV_GLOBAL_MMR32_SIZE (is_uv1_hub() ? UV1_GLOBAL_MMR32_SIZE :\ |
| 240 | UV2_GLOBAL_MMR32_SIZE) |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 241 | #define UV_GLOBAL_MMR64_BASE (uv_hub_info->global_mmr_base) |
| 242 | |
Jack Steiner | 56abcf2 | 2009-12-15 16:48:20 -0800 | [diff] [blame] | 243 | #define UV_GLOBAL_GRU_MMR_BASE 0x4000000 |
| 244 | |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 245 | #define UV_GLOBAL_MMR32_PNODE_SHIFT 15 |
| 246 | #define UV_GLOBAL_MMR64_PNODE_SHIFT 26 |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 247 | |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 248 | #define UV_GLOBAL_MMR32_PNODE_BITS(p) ((p) << (UV_GLOBAL_MMR32_PNODE_SHIFT)) |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 249 | |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 250 | #define UV_GLOBAL_MMR64_PNODE_BITS(p) \ |
Jack Steiner | 67e83f3 | 2009-07-27 09:38:08 -0500 | [diff] [blame] | 251 | (((unsigned long)(p)) << UV_GLOBAL_MMR64_PNODE_SHIFT) |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 252 | |
Russ Anderson | c8f730b | 2010-10-26 16:27:28 -0500 | [diff] [blame] | 253 | #define UVH_APICID 0x002D0E00L |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 254 | #define UV_APIC_PNODE_SHIFT 6 |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 255 | |
Dimitri Sivanich | 8191c9f | 2010-11-16 16:23:52 -0600 | [diff] [blame] | 256 | #define UV_APICID_HIBIT_MASK 0xffff0000 |
| 257 | |
Mike Travis | 7f1baa0 | 2008-10-24 15:24:29 -0700 | [diff] [blame] | 258 | /* Local Bus from cpu's perspective */ |
| 259 | #define LOCAL_BUS_BASE 0x1c00000 |
| 260 | #define LOCAL_BUS_SIZE (4 * 1024 * 1024) |
| 261 | |
| 262 | /* |
| 263 | * System Controller Interface Reg |
| 264 | * |
| 265 | * Note there are NO leds on a UV system. This register is only |
| 266 | * used by the system controller to monitor system-wide operation. |
| 267 | * There are 64 regs per node. With Nahelem cpus (2 cores per node, |
| 268 | * 8 cpus per core, 2 threads per cpu) there are 32 cpu threads on |
| 269 | * a node. |
| 270 | * |
| 271 | * The window is located at top of ACPI MMR space |
| 272 | */ |
| 273 | #define SCIR_WINDOW_COUNT 64 |
| 274 | #define SCIR_LOCAL_MMR_BASE (LOCAL_BUS_BASE + \ |
| 275 | LOCAL_BUS_SIZE - \ |
| 276 | SCIR_WINDOW_COUNT) |
| 277 | |
| 278 | #define SCIR_CPU_HEARTBEAT 0x01 /* timer interrupt */ |
| 279 | #define SCIR_CPU_ACTIVITY 0x02 /* not idle */ |
| 280 | #define SCIR_CPU_HB_INTERVAL (HZ) /* once per second */ |
| 281 | |
Dimitri Sivanich | 8661984 | 2009-03-04 12:57:19 -0600 | [diff] [blame] | 282 | /* Loop through all installed blades */ |
| 283 | #define for_each_possible_blade(bid) \ |
| 284 | for ((bid) = 0; (bid) < uv_num_possible_blades(); (bid)++) |
| 285 | |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 286 | /* |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 287 | * Macros for converting between kernel virtual addresses, socket local physical |
| 288 | * addresses, and UV global physical addresses. |
Mike Travis | 39d3077 | 2009-12-28 13:28:25 -0800 | [diff] [blame] | 289 | * Note: use the standard __pa() & __va() macros for converting |
| 290 | * between socket virtual and socket physical addresses. |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 291 | */ |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 292 | |
| 293 | /* socket phys RAM --> UV global physical address */ |
| 294 | static inline unsigned long uv_soc_phys_ram_to_gpa(unsigned long paddr) |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 295 | { |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 296 | if (paddr < uv_hub_info->lowmem_remap_top) |
Jack Steiner | 189f67c | 2008-12-12 14:50:40 -0600 | [diff] [blame] | 297 | paddr |= uv_hub_info->lowmem_remap_base; |
Jack Steiner | 6a469e4 | 2011-09-20 13:55:04 -0700 | [diff] [blame] | 298 | paddr |= uv_hub_info->gnode_upper; |
| 299 | paddr = ((paddr << uv_hub_info->m_shift) >> uv_hub_info->m_shift) | |
| 300 | ((paddr >> uv_hub_info->m_val) << uv_hub_info->n_lshift); |
| 301 | return paddr; |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 302 | } |
| 303 | |
| 304 | |
| 305 | /* socket virtual --> UV global physical address */ |
| 306 | static inline unsigned long uv_gpa(void *v) |
| 307 | { |
Jack Steiner | 189f67c | 2008-12-12 14:50:40 -0600 | [diff] [blame] | 308 | return uv_soc_phys_ram_to_gpa(__pa(v)); |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 309 | } |
| 310 | |
Robin Holt | fae419f | 2009-12-15 16:47:54 -0800 | [diff] [blame] | 311 | /* Top two bits indicate the requested address is in MMR space. */ |
| 312 | static inline int |
| 313 | uv_gpa_in_mmr_space(unsigned long gpa) |
| 314 | { |
| 315 | return (gpa >> 62) == 0x3UL; |
| 316 | } |
| 317 | |
Robin Holt | 729d69e | 2009-12-15 16:47:52 -0800 | [diff] [blame] | 318 | /* UV global physical address --> socket phys RAM */ |
| 319 | static inline unsigned long uv_gpa_to_soc_phys_ram(unsigned long gpa) |
| 320 | { |
Russ Anderson | 5a51467 | 2012-01-18 20:07:54 -0600 | [diff] [blame] | 321 | unsigned long paddr; |
Robin Holt | 729d69e | 2009-12-15 16:47:52 -0800 | [diff] [blame] | 322 | unsigned long remap_base = uv_hub_info->lowmem_remap_base; |
| 323 | unsigned long remap_top = uv_hub_info->lowmem_remap_top; |
| 324 | |
Jack Steiner | 6a469e4 | 2011-09-20 13:55:04 -0700 | [diff] [blame] | 325 | gpa = ((gpa << uv_hub_info->m_shift) >> uv_hub_info->m_shift) | |
| 326 | ((gpa >> uv_hub_info->n_lshift) << uv_hub_info->m_val); |
Russ Anderson | 5a51467 | 2012-01-18 20:07:54 -0600 | [diff] [blame] | 327 | paddr = gpa & uv_hub_info->gpa_mask; |
Robin Holt | 729d69e | 2009-12-15 16:47:52 -0800 | [diff] [blame] | 328 | if (paddr >= remap_base && paddr < remap_base + remap_top) |
| 329 | paddr -= remap_base; |
| 330 | return paddr; |
| 331 | } |
| 332 | |
| 333 | |
Jack Steiner | 6a469e4 | 2011-09-20 13:55:04 -0700 | [diff] [blame] | 334 | /* gpa -> pnode */ |
Robin Holt | 1d21e6e | 2009-10-16 06:29:20 -0500 | [diff] [blame] | 335 | static inline unsigned long uv_gpa_to_gnode(unsigned long gpa) |
| 336 | { |
Jack Steiner | 6a469e4 | 2011-09-20 13:55:04 -0700 | [diff] [blame] | 337 | return gpa >> uv_hub_info->n_lshift; |
Robin Holt | 1d21e6e | 2009-10-16 06:29:20 -0500 | [diff] [blame] | 338 | } |
| 339 | |
| 340 | /* gpa -> pnode */ |
| 341 | static inline int uv_gpa_to_pnode(unsigned long gpa) |
| 342 | { |
| 343 | unsigned long n_mask = (1UL << uv_hub_info->n_val) - 1; |
| 344 | |
| 345 | return uv_gpa_to_gnode(gpa) & n_mask; |
| 346 | } |
| 347 | |
Jack Steiner | 6a469e4 | 2011-09-20 13:55:04 -0700 | [diff] [blame] | 348 | /* gpa -> node offset*/ |
| 349 | static inline unsigned long uv_gpa_to_offset(unsigned long gpa) |
| 350 | { |
| 351 | return (gpa << uv_hub_info->m_shift) >> uv_hub_info->m_shift; |
| 352 | } |
| 353 | |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 354 | /* pnode, offset --> socket virtual */ |
| 355 | static inline void *uv_pnode_offset_to_vaddr(int pnode, unsigned long offset) |
| 356 | { |
| 357 | return __va(((unsigned long)pnode << uv_hub_info->m_val) | offset); |
| 358 | } |
| 359 | |
| 360 | |
| 361 | /* |
| 362 | * Extract a PNODE from an APICID (full apicid, not processor subset) |
| 363 | */ |
| 364 | static inline int uv_apicid_to_pnode(int apicid) |
| 365 | { |
Russ Anderson | c8f730b | 2010-10-26 16:27:28 -0500 | [diff] [blame] | 366 | return (apicid >> uv_hub_info->apic_pnode_shift); |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 367 | } |
| 368 | |
| 369 | /* |
Jack Steiner | 2a91959 | 2011-05-11 12:50:28 -0500 | [diff] [blame] | 370 | * Convert an apicid to the socket number on the blade |
| 371 | */ |
| 372 | static inline int uv_apicid_to_socket(int apicid) |
| 373 | { |
| 374 | if (is_uv1_hub()) |
| 375 | return (apicid >> (uv_hub_info->apic_pnode_shift - 1)) & 1; |
| 376 | else |
| 377 | return 0; |
| 378 | } |
| 379 | |
| 380 | /* |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 381 | * Access global MMRs using the low memory MMR32 space. This region supports |
| 382 | * faster MMR access but not all MMRs are accessible in this space. |
| 383 | */ |
Mike Travis | 39d3077 | 2009-12-28 13:28:25 -0800 | [diff] [blame] | 384 | static inline unsigned long *uv_global_mmr32_address(int pnode, unsigned long offset) |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 385 | { |
| 386 | return __va(UV_GLOBAL_MMR32_BASE | |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 387 | UV_GLOBAL_MMR32_PNODE_BITS(pnode) | offset); |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 388 | } |
| 389 | |
Mike Travis | 39d3077 | 2009-12-28 13:28:25 -0800 | [diff] [blame] | 390 | static inline void uv_write_global_mmr32(int pnode, unsigned long offset, unsigned long val) |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 391 | { |
Jack Steiner | 8dc579e | 2009-09-10 09:31:49 -0500 | [diff] [blame] | 392 | writeq(val, uv_global_mmr32_address(pnode, offset)); |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 393 | } |
| 394 | |
Mike Travis | 39d3077 | 2009-12-28 13:28:25 -0800 | [diff] [blame] | 395 | static inline unsigned long uv_read_global_mmr32(int pnode, unsigned long offset) |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 396 | { |
Jack Steiner | 8dc579e | 2009-09-10 09:31:49 -0500 | [diff] [blame] | 397 | return readq(uv_global_mmr32_address(pnode, offset)); |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 398 | } |
| 399 | |
| 400 | /* |
| 401 | * Access Global MMR space using the MMR space located at the top of physical |
| 402 | * memory. |
| 403 | */ |
Randy Dunlap | a289cc7 | 2010-04-16 17:51:42 -0700 | [diff] [blame] | 404 | static inline volatile void __iomem *uv_global_mmr64_address(int pnode, unsigned long offset) |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 405 | { |
| 406 | return __va(UV_GLOBAL_MMR64_BASE | |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 407 | UV_GLOBAL_MMR64_PNODE_BITS(pnode) | offset); |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 408 | } |
| 409 | |
Mike Travis | 39d3077 | 2009-12-28 13:28:25 -0800 | [diff] [blame] | 410 | static inline void uv_write_global_mmr64(int pnode, unsigned long offset, unsigned long val) |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 411 | { |
Jack Steiner | 8dc579e | 2009-09-10 09:31:49 -0500 | [diff] [blame] | 412 | writeq(val, uv_global_mmr64_address(pnode, offset)); |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 413 | } |
| 414 | |
Mike Travis | 39d3077 | 2009-12-28 13:28:25 -0800 | [diff] [blame] | 415 | static inline unsigned long uv_read_global_mmr64(int pnode, unsigned long offset) |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 416 | { |
Jack Steiner | 8dc579e | 2009-09-10 09:31:49 -0500 | [diff] [blame] | 417 | return readq(uv_global_mmr64_address(pnode, offset)); |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 418 | } |
| 419 | |
| 420 | /* |
Jack Steiner | 56abcf2 | 2009-12-15 16:48:20 -0800 | [diff] [blame] | 421 | * Global MMR space addresses when referenced by the GRU. (GRU does |
| 422 | * NOT use socket addressing). |
| 423 | */ |
| 424 | static inline unsigned long uv_global_gru_mmr_address(int pnode, unsigned long offset) |
| 425 | { |
Jack Steiner | e1e0138 | 2010-01-07 10:12:40 -0600 | [diff] [blame] | 426 | return UV_GLOBAL_GRU_MMR_BASE | offset | |
| 427 | ((unsigned long)pnode << uv_hub_info->m_val); |
Jack Steiner | 56abcf2 | 2009-12-15 16:48:20 -0800 | [diff] [blame] | 428 | } |
| 429 | |
Mike Travis | 39d3077 | 2009-12-28 13:28:25 -0800 | [diff] [blame] | 430 | static inline void uv_write_global_mmr8(int pnode, unsigned long offset, unsigned char val) |
| 431 | { |
| 432 | writeb(val, uv_global_mmr64_address(pnode, offset)); |
| 433 | } |
| 434 | |
| 435 | static inline unsigned char uv_read_global_mmr8(int pnode, unsigned long offset) |
| 436 | { |
| 437 | return readb(uv_global_mmr64_address(pnode, offset)); |
| 438 | } |
| 439 | |
Jack Steiner | 56abcf2 | 2009-12-15 16:48:20 -0800 | [diff] [blame] | 440 | /* |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 441 | * Access hub local MMRs. Faster than using global space but only local MMRs |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 442 | * are accessible. |
| 443 | */ |
| 444 | static inline unsigned long *uv_local_mmr_address(unsigned long offset) |
| 445 | { |
| 446 | return __va(UV_LOCAL_MMR_BASE | offset); |
| 447 | } |
| 448 | |
| 449 | static inline unsigned long uv_read_local_mmr(unsigned long offset) |
| 450 | { |
Jack Steiner | 8dc579e | 2009-09-10 09:31:49 -0500 | [diff] [blame] | 451 | return readq(uv_local_mmr_address(offset)); |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 452 | } |
| 453 | |
| 454 | static inline void uv_write_local_mmr(unsigned long offset, unsigned long val) |
| 455 | { |
Jack Steiner | 8dc579e | 2009-09-10 09:31:49 -0500 | [diff] [blame] | 456 | writeq(val, uv_local_mmr_address(offset)); |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 457 | } |
| 458 | |
Mike Travis | 7f1baa0 | 2008-10-24 15:24:29 -0700 | [diff] [blame] | 459 | static inline unsigned char uv_read_local_mmr8(unsigned long offset) |
| 460 | { |
Jack Steiner | 8dc579e | 2009-09-10 09:31:49 -0500 | [diff] [blame] | 461 | return readb(uv_local_mmr_address(offset)); |
Mike Travis | 7f1baa0 | 2008-10-24 15:24:29 -0700 | [diff] [blame] | 462 | } |
| 463 | |
| 464 | static inline void uv_write_local_mmr8(unsigned long offset, unsigned char val) |
| 465 | { |
Jack Steiner | 8dc579e | 2009-09-10 09:31:49 -0500 | [diff] [blame] | 466 | writeb(val, uv_local_mmr_address(offset)); |
Mike Travis | 7f1baa0 | 2008-10-24 15:24:29 -0700 | [diff] [blame] | 467 | } |
| 468 | |
Jack Steiner | 8400def | 2008-03-28 14:12:14 -0500 | [diff] [blame] | 469 | /* |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 470 | * Structures and definitions for converting between cpu, node, pnode, and blade |
Jack Steiner | 8400def | 2008-03-28 14:12:14 -0500 | [diff] [blame] | 471 | * numbers. |
| 472 | */ |
| 473 | struct uv_blade_info { |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 474 | unsigned short nr_possible_cpus; |
Jack Steiner | 8400def | 2008-03-28 14:12:14 -0500 | [diff] [blame] | 475 | unsigned short nr_online_cpus; |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 476 | unsigned short pnode; |
Jack Steiner | 6c7184b | 2009-07-27 09:35:07 -0500 | [diff] [blame] | 477 | short memory_nid; |
Jack Steiner | 1d44e82 | 2011-05-09 11:35:19 -0500 | [diff] [blame] | 478 | spinlock_t nmi_lock; |
| 479 | unsigned long nmi_count; |
Jack Steiner | 8400def | 2008-03-28 14:12:14 -0500 | [diff] [blame] | 480 | }; |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 481 | extern struct uv_blade_info *uv_blade_info; |
Jack Steiner | 8400def | 2008-03-28 14:12:14 -0500 | [diff] [blame] | 482 | extern short *uv_node_to_blade; |
| 483 | extern short *uv_cpu_to_blade; |
| 484 | extern short uv_possible_blades; |
| 485 | |
| 486 | /* Blade-local cpu number of current cpu. Numbered 0 .. <# cpus on the blade> */ |
| 487 | static inline int uv_blade_processor_id(void) |
| 488 | { |
| 489 | return uv_hub_info->blade_processor_id; |
| 490 | } |
| 491 | |
| 492 | /* Blade number of current cpu. Numnbered 0 .. <#blades -1> */ |
| 493 | static inline int uv_numa_blade_id(void) |
| 494 | { |
| 495 | return uv_hub_info->numa_blade_id; |
| 496 | } |
| 497 | |
| 498 | /* Convert a cpu number to the the UV blade number */ |
| 499 | static inline int uv_cpu_to_blade_id(int cpu) |
| 500 | { |
| 501 | return uv_cpu_to_blade[cpu]; |
| 502 | } |
| 503 | |
| 504 | /* Convert linux node number to the UV blade number */ |
| 505 | static inline int uv_node_to_blade_id(int nid) |
| 506 | { |
| 507 | return uv_node_to_blade[nid]; |
| 508 | } |
| 509 | |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 510 | /* Convert a blade id to the PNODE of the blade */ |
| 511 | static inline int uv_blade_to_pnode(int bid) |
Jack Steiner | 8400def | 2008-03-28 14:12:14 -0500 | [diff] [blame] | 512 | { |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 513 | return uv_blade_info[bid].pnode; |
Jack Steiner | 8400def | 2008-03-28 14:12:14 -0500 | [diff] [blame] | 514 | } |
| 515 | |
Jack Steiner | 6c7184b | 2009-07-27 09:35:07 -0500 | [diff] [blame] | 516 | /* Nid of memory node on blade. -1 if no blade-local memory */ |
| 517 | static inline int uv_blade_to_memory_nid(int bid) |
| 518 | { |
| 519 | return uv_blade_info[bid].memory_nid; |
| 520 | } |
| 521 | |
Jack Steiner | 8400def | 2008-03-28 14:12:14 -0500 | [diff] [blame] | 522 | /* Determine the number of possible cpus on a blade */ |
| 523 | static inline int uv_blade_nr_possible_cpus(int bid) |
| 524 | { |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 525 | return uv_blade_info[bid].nr_possible_cpus; |
Jack Steiner | 8400def | 2008-03-28 14:12:14 -0500 | [diff] [blame] | 526 | } |
| 527 | |
| 528 | /* Determine the number of online cpus on a blade */ |
| 529 | static inline int uv_blade_nr_online_cpus(int bid) |
| 530 | { |
| 531 | return uv_blade_info[bid].nr_online_cpus; |
| 532 | } |
| 533 | |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 534 | /* Convert a cpu id to the PNODE of the blade containing the cpu */ |
| 535 | static inline int uv_cpu_to_pnode(int cpu) |
Jack Steiner | 8400def | 2008-03-28 14:12:14 -0500 | [diff] [blame] | 536 | { |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 537 | return uv_blade_info[uv_cpu_to_blade_id(cpu)].pnode; |
Jack Steiner | 8400def | 2008-03-28 14:12:14 -0500 | [diff] [blame] | 538 | } |
| 539 | |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 540 | /* Convert a linux node number to the PNODE of the blade */ |
| 541 | static inline int uv_node_to_pnode(int nid) |
Jack Steiner | 8400def | 2008-03-28 14:12:14 -0500 | [diff] [blame] | 542 | { |
Jack Steiner | 9f5314f | 2008-05-28 09:51:18 -0500 | [diff] [blame] | 543 | return uv_blade_info[uv_node_to_blade_id(nid)].pnode; |
Jack Steiner | 8400def | 2008-03-28 14:12:14 -0500 | [diff] [blame] | 544 | } |
| 545 | |
| 546 | /* Maximum possible number of blades */ |
| 547 | static inline int uv_num_possible_blades(void) |
| 548 | { |
| 549 | return uv_possible_blades; |
| 550 | } |
| 551 | |
Mike Travis | 7f1baa0 | 2008-10-24 15:24:29 -0700 | [diff] [blame] | 552 | /* Update SCIR state */ |
| 553 | static inline void uv_set_scir_bits(unsigned char value) |
| 554 | { |
| 555 | if (uv_hub_info->scir.state != value) { |
| 556 | uv_hub_info->scir.state = value; |
| 557 | uv_write_local_mmr8(uv_hub_info->scir.offset, value); |
| 558 | } |
| 559 | } |
Jack Steiner | 66666e5 | 2009-04-02 16:59:03 -0700 | [diff] [blame] | 560 | |
Mike Travis | 39d3077 | 2009-12-28 13:28:25 -0800 | [diff] [blame] | 561 | static inline unsigned long uv_scir_offset(int apicid) |
| 562 | { |
| 563 | return SCIR_LOCAL_MMR_BASE | (apicid & 0x3f); |
| 564 | } |
| 565 | |
Mike Travis | 7f1baa0 | 2008-10-24 15:24:29 -0700 | [diff] [blame] | 566 | static inline void uv_set_cpu_scir_bits(int cpu, unsigned char value) |
| 567 | { |
| 568 | if (uv_cpu_hub_info(cpu)->scir.state != value) { |
Mike Travis | 39d3077 | 2009-12-28 13:28:25 -0800 | [diff] [blame] | 569 | uv_write_global_mmr8(uv_cpu_to_pnode(cpu), |
| 570 | uv_cpu_hub_info(cpu)->scir.offset, value); |
Mike Travis | 7f1baa0 | 2008-10-24 15:24:29 -0700 | [diff] [blame] | 571 | uv_cpu_hub_info(cpu)->scir.state = value; |
Mike Travis | 7f1baa0 | 2008-10-24 15:24:29 -0700 | [diff] [blame] | 572 | } |
| 573 | } |
Jack Steiner | 952cf6d | 2008-03-28 14:12:13 -0500 | [diff] [blame] | 574 | |
Dimitri Sivanich | 8191c9f | 2010-11-16 16:23:52 -0600 | [diff] [blame] | 575 | extern unsigned int uv_apicid_hibits; |
Jack Steiner | 56abcf2 | 2009-12-15 16:48:20 -0800 | [diff] [blame] | 576 | static unsigned long uv_hub_ipi_value(int apicid, int vector, int mode) |
| 577 | { |
Dimitri Sivanich | 8191c9f | 2010-11-16 16:23:52 -0600 | [diff] [blame] | 578 | apicid |= uv_apicid_hibits; |
Jack Steiner | 56abcf2 | 2009-12-15 16:48:20 -0800 | [diff] [blame] | 579 | return (1UL << UVH_IPI_INT_SEND_SHFT) | |
| 580 | ((apicid) << UVH_IPI_INT_APIC_ID_SHFT) | |
| 581 | (mode << UVH_IPI_INT_DELIVERY_MODE_SHFT) | |
| 582 | (vector << UVH_IPI_INT_VECTOR_SHFT); |
| 583 | } |
| 584 | |
Jack Steiner | 66666e5 | 2009-04-02 16:59:03 -0700 | [diff] [blame] | 585 | static inline void uv_hub_send_ipi(int pnode, int apicid, int vector) |
| 586 | { |
| 587 | unsigned long val; |
Robin Holt | 02dd0a0 | 2009-10-20 14:36:15 -0500 | [diff] [blame] | 588 | unsigned long dmode = dest_Fixed; |
| 589 | |
| 590 | if (vector == NMI_VECTOR) |
| 591 | dmode = dest_NMI; |
Jack Steiner | 66666e5 | 2009-04-02 16:59:03 -0700 | [diff] [blame] | 592 | |
Jack Steiner | 56abcf2 | 2009-12-15 16:48:20 -0800 | [diff] [blame] | 593 | val = uv_hub_ipi_value(apicid, vector, dmode); |
Jack Steiner | 66666e5 | 2009-04-02 16:59:03 -0700 | [diff] [blame] | 594 | uv_write_global_mmr64(pnode, UVH_IPI_INT, val); |
| 595 | } |
| 596 | |
Jack Steiner | 7a1110e | 2010-01-12 15:09:04 -0600 | [diff] [blame] | 597 | /* |
| 598 | * Get the minimum revision number of the hub chips within the partition. |
Jack Steiner | 2a91959 | 2011-05-11 12:50:28 -0500 | [diff] [blame] | 599 | * 1 - UV1 rev 1.0 initial silicon |
| 600 | * 2 - UV1 rev 2.0 production silicon |
| 601 | * 3 - UV2 rev 1.0 initial silicon |
Jack Steiner | 7a1110e | 2010-01-12 15:09:04 -0600 | [diff] [blame] | 602 | */ |
| 603 | static inline int uv_get_min_hub_revision_id(void) |
| 604 | { |
Jack Steiner | 2a91959 | 2011-05-11 12:50:28 -0500 | [diff] [blame] | 605 | return uv_hub_info->hub_revision; |
Jack Steiner | 7a1110e | 2010-01-12 15:09:04 -0600 | [diff] [blame] | 606 | } |
| 607 | |
Jack Steiner | bc5d994 | 2009-04-02 16:59:00 -0700 | [diff] [blame] | 608 | #endif /* CONFIG_X86_64 */ |
Mike Travis | 7f1baa0 | 2008-10-24 15:24:29 -0700 | [diff] [blame] | 609 | #endif /* _ASM_X86_UV_UV_HUB_H */ |