/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
*/
+#include <platforms.h>
+#include <mach_kdb.h>
+#include <vm/vm_page.h>
+#include <pexpert/pexpert.h>
-/*
- * Values from http://einstein.et.tudelft.nl/~offerman/chiplist.html
- * (dated 18 Oct 1995)
- */
+#include "cpuid.h"
+#if MACH_KDB
+#include <i386/db_machdep.h>
+#include <ddb/db_aout.h>
+#include <ddb/db_access.h>
+#include <ddb/db_sym.h>
+#include <ddb/db_variables.h>
+#include <ddb/db_command.h>
+#include <ddb/db_output.h>
+#include <ddb/db_expr.h>
+#endif
-#include <kern/misc_protos.h>
-#include <i386/cpuid.h>
+#define min(a,b) ((a) < (b) ? (a) : (b))
+#define quad(hi,lo) (((uint64_t)(hi)) << 32 | (lo))
-/*
- * Generic product array (before CPUID)
- */
-unsigned int cpuid_i386_freq[] = { 12, 16, 20, 25, 33, 0 };
-unsigned int cpuid_i486_freq[] = { 20, 25, 33, 50, 0 };
-
-struct cpuid_product cpuid_generic[] = {
- {
- 0, CPUID_FAMILY_386, 0,
- 80, cpuid_i386_freq, "i386"
- },
- {
- 0, CPUID_FAMILY_486, 0,
- 240, cpuid_i486_freq, "i486"
- },
-};
+#define bit(n) (1UL << (n))
+#define bitmask(h,l) ((bit(h)|(bit(h)-1)) & ~(bit(l)-1))
+#define bitfield(x,h,l) (((x) & bitmask(h,l)) >> l)
/*
- * INTEL product array
+ * CPU identification routines.
*/
-unsigned int cpuid_i486_dx_freq[] = { 20, 25, 33, 0 };
-unsigned int cpuid_i486_dx_s_freq[] = { 50, 0 };
-unsigned int cpuid_i486_sx_freq[] = { 16, 20, 25, 33, 0 };
-unsigned int cpuid_i486_dx2_freq[] = { 32, 40, 50, 66, 0 };
-unsigned int cpuid_i486_sl_freq[] = { 25, 33, 0 };
-unsigned int cpuid_i486_sx2_freq[] = { 50, 0 };
-unsigned int cpuid_i486_dx2wb_freq[] = { 50, 66, 0 };
-unsigned int cpuid_i486_dx4_freq[] = { 90, 100, 0 };
-
-unsigned int cpuid_i486_dx2wb_od_freq[] = { 32, 40, 50, 66, 0 };
-unsigned int cpuid_i486_dx4_od_freq[] = { 75, 99, 0 };
-
-unsigned int cpuid_p5_freq[] = { 60, 66, 0 };
-unsigned int cpuid_p54_freq[] = { 60, 66, 75, 90, 100, 120, 133, 166, 200, 0 };
-
-unsigned int cpuid_p24t_freq[] = { 25, 33, 0 };
-unsigned int cpuid_p24ct_freq[] = { 63, 83, 0 };
-
-unsigned int cpuid_pii_freq[] = { 300, 0 };
-
-struct cpuid_product cpuid_intel[] = {
- {
- CPUID_TYPE_OEM, CPUID_FAMILY_486, CPUID_MODEL_I486_DX,
- 240, cpuid_i486_dx_freq, "Intel 486DX"
- },
- {
- CPUID_TYPE_OEM, CPUID_FAMILY_486, CPUID_MODEL_I486_DX_S,
- 240, cpuid_i486_dx_s_freq, "Intel 486DX-S"
- },
- {
- CPUID_TYPE_OEM, CPUID_FAMILY_486, CPUID_MODEL_I486_SX,
- 240, cpuid_i486_sx_freq, "Intel 486SX"
- },
- {
- CPUID_TYPE_OEM, CPUID_FAMILY_486, CPUID_MODEL_I486_DX2,
- 240, cpuid_i486_dx2_freq, "Intel 486DX2"
- },
- {
- CPUID_TYPE_OEM, CPUID_FAMILY_486, CPUID_MODEL_I486_SL,
- 240, cpuid_i486_sl_freq, "Intel 486SL"
- },
- {
- CPUID_TYPE_OEM, CPUID_FAMILY_486, CPUID_MODEL_I486_SX2,
- 240, cpuid_i486_sx2_freq, "Intel 486SX2"
- },
- {
- CPUID_TYPE_OEM, CPUID_FAMILY_486, CPUID_MODEL_I486_DX2WB,
- 240, cpuid_i486_dx2wb_freq, "Intel 486DX2WB"
- },
- {
- CPUID_TYPE_OEM, CPUID_FAMILY_486, CPUID_MODEL_I486_DX4,
- 240, cpuid_i486_dx4_freq, "Intel 486DX4"
- },
- {
- CPUID_TYPE_OVERDRIVE, CPUID_FAMILY_486, CPUID_MODEL_I486_DX2,
- 240, cpuid_i486_dx2_freq, "Intel 486DX2 OverDrive"
- },
- {
- CPUID_TYPE_OVERDRIVE, CPUID_FAMILY_486, CPUID_MODEL_I486_DX2WB,
- 240, cpuid_i486_dx2wb_od_freq, "Intel 486DX2WB OverDrive"
- },
- {
- CPUID_TYPE_OVERDRIVE, CPUID_FAMILY_486, CPUID_MODEL_I486_DX4,
- 240, cpuid_i486_dx4_od_freq, "Intel 486DX4 OverDrive"
- },
- {
- CPUID_TYPE_OVERDRIVE, CPUID_FAMILY_P5, CPUID_MODEL_P24T,
- 208, cpuid_p24t_freq, "Intel Pentium P24T OverDrive"
- },
- {
- CPUID_TYPE_OVERDRIVE, CPUID_FAMILY_P5, CPUID_MODEL_P54,
- 207, cpuid_p24ct_freq, "Intel Pentium P24CT OverDrive"
- },
- {
- CPUID_TYPE_OEM, CPUID_FAMILY_P5, CPUID_MODEL_P5A,
- 207, cpuid_p5_freq, "Intel Pentium P5 rev A"
- },
- {
- CPUID_TYPE_OEM, CPUID_FAMILY_P5, CPUID_MODEL_P5,
- 207, cpuid_p5_freq, "Intel Pentium P5"
- },
- {
- CPUID_TYPE_OEM, CPUID_FAMILY_P5, CPUID_MODEL_P54,
- 207, cpuid_p54_freq, "Intel Pentium P54"
- },
- {
- CPUID_TYPE_OEM, CPUID_FAMILY_PPRO, CPUID_MODEL_PII,
- 480, cpuid_pii_freq, "Intel Pentium II"
- }
-};
-unsigned int cpuid_intel_size = sizeof (cpuid_intel) / sizeof (cpuid_intel[0]);
-/*
- * AMD product arrays
- */
-unsigned int cpuid_am486_dx_freq[] = { 33, 40, 0 };
-unsigned int cpuid_am486_dx2_freq[] = { 50, 66, 80, 99, 0 };
-unsigned int cpuid_am486_dx4_freq[] = { 99, 120, 133, 0 };
-unsigned int cpuid_am486_dx4wb_freq[] = { 99, 120, 133, 0 };
+static i386_cpu_info_t *cpuid_cpu_infop = NULL;
+static i386_cpu_info_t cpuid_cpu_info;
-/*
- * UMC product array
- */
-unsigned int cpuid_u5sd_freq[] = { 25, 33, 40, 0 };
-unsigned int cpuid_u5s_freq[] = { 25, 33, 40, 0 };
+/* this function is Intel-specific */
+static void
+cpuid_set_cache_info( i386_cpu_info_t * info_p )
+{
+ uint32_t cpuid_result[4];
+ uint32_t reg[4];
+ uint32_t index;
+ uint32_t linesizes[LCACHE_MAX];
+ unsigned int i;
+ unsigned int j;
+ boolean_t cpuid_deterministic_supported = FALSE;
-/*
- * Vendor ID array
- */
-struct cpuid_name cpuid_name[] = {
- { CPUID_VID_INTEL,
- cpuid_intel, sizeof (cpuid_intel) / sizeof (cpuid_intel[0])
- },
- { CPUID_VID_UMC,
- (struct cpuid_product *)0,
- },
- { CPUID_VID_AMD,
- (struct cpuid_product *)0,
- },
- { CPUID_VID_CYRIX,
- (struct cpuid_product *)0,
- },
- { CPUID_VID_NEXTGEN,
- (struct cpuid_product *)0
- },
- { "",
- cpuid_generic, sizeof (cpuid_generic) / sizeof (cpuid_generic[0])
- },
- { (char *)0,
- }
-};
+ bzero( linesizes, sizeof(linesizes) );
-/*
- * Feature Flag values
- */
-char *cpuid_flag[] = {
- "FPU", /* Floating point unit on-chip */
- "VME", /* Virtual Mode Extension */
- "DE", /* Debugging Extension */
- "PSE", /* Page Size Extension */
- "TSC", /* Time Stamp Counter */
- "MSR", /* Model Specific Registers */
- "PAE", /* Physical Address Extension */
- "MCE", /* Machine Check Exception */
- "CX8", /* CMPXCHG8 Instruction sSupported */
- "APIC", /* Local APIC Supported */
- "(bit 10)",
- "(bit 11)",
- "MTRR", /* Machine Type Range Register */
- "PGE", /* Page Global Enable */
- "MCA", /* Machine Check Architecture */
- "CMOV", /* Conditional Move Instruction Supported */
- "(bit 16)",
- "(bit 17)",
- "(bit 18)",
- "(bit 19)",
- "(bit 20)",
- "(bit 21)",
- "(bit 22)",
- "MMX", /* Supports MMX instructions */
- "(bit 24)",
- "(bit 25)",
- "(bit 26)",
- "(bit 27)",
- "(bit 28)",
- "(bit 29)",
- "(bit 30)",
- "(bit 31)",
-};
+ /* Get processor cache descriptor info using leaf 2. We don't use
+ * this internally, but must publish it for KEXTs.
+ */
+ do_cpuid(2, cpuid_result);
+ for (j = 0; j < 4; j++) {
+ if ((cpuid_result[j] >> 31) == 1) /* bit31 is validity */
+ continue;
+ ((uint32_t *) info_p->cache_info)[j] = cpuid_result[j];
+ }
+ /* first byte gives number of cpuid calls to get all descriptors */
+ for (i = 1; i < info_p->cache_info[0]; i++) {
+ if (i*16 > sizeof(info_p->cache_info))
+ break;
+ do_cpuid(2, cpuid_result);
+ for (j = 0; j < 4; j++) {
+ if ((cpuid_result[j] >> 31) == 1)
+ continue;
+ ((uint32_t *) info_p->cache_info)[4*i+j] =
+ cpuid_result[j];
+ }
+ }
-/*
- * Cache description array
- */
-struct cpuid_cache_desc cpuid_cache_desc[] = {
- { CPUID_CACHE_ITLB_4K,
- "Instruction TBL, 4K, pages 4-way set associative, 64 entries"
- },
- { CPUID_CACHE_ITLB_4M,
- "Instruction TBL, 4M, pages 4-way set associative, 4 entries"
- },
- { CPUID_CACHE_DTLB_4K,
- "Data TBL, 4K pages, 4-way set associative, 64 entries"
- },
- { CPUID_CACHE_DTLB_4M,
- "Data TBL, 4M pages, 4-way set associative, 4 entries"
- },
- { CPUID_CACHE_ICACHE_8K,
- "Instruction L1 cache, 8K, 4-way set associative, 32byte line size"
- },
- { CPUID_CACHE_DCACHE_8K,
- "Data L1 cache, 8K, 2-way set associative, 32byte line size"
- },
- { CPUID_CACHE_UCACHE_128K,
- "Unified L2 cache, 128K, 4-way set associative, 32byte line size"
- },
- { CPUID_CACHE_UCACHE_256K,
- "Unified L2 cache, 256K, 4-way set associative, 32byte line size"
- },
- { CPUID_CACHE_UCACHE_512K,
- "Unified L2 cache, 512K, 4-way set associative, 32byte line size"
- },
- { CPUID_CACHE_NULL,
- (char *)0
- }
-};
+ /*
+ * Get cache info using leaf 4, the "deterministic cache parameters."
+ * Most processors Mac OS X supports implement this flavor of CPUID.
+ * Loop over each cache on the processor.
+ */
+ do_cpuid(0, cpuid_result);
+ if (cpuid_result[eax] >= 4)
+ cpuid_deterministic_supported = TRUE;
+
+ for (index = 0; cpuid_deterministic_supported; index++) {
+ cache_type_t type = Lnone;
+ uint32_t cache_type;
+ uint32_t cache_level;
+ uint32_t cache_sharing;
+ uint32_t cache_linesize;
+ uint32_t cache_sets;
+ uint32_t cache_associativity;
+ uint32_t cache_size;
+ uint32_t cache_partitions;
+ uint32_t colors;
+
+ reg[eax] = 4; /* cpuid request 4 */
+ reg[ecx] = index; /* index starting at 0 */
+ cpuid(reg);
+//kprintf("cpuid(4) index=%d eax=%p\n", index, reg[eax]);
+ cache_type = bitfield(reg[eax], 4, 0);
+ if (cache_type == 0)
+ break; /* no more caches */
+ cache_level = bitfield(reg[eax], 7, 5);
+ cache_sharing = bitfield(reg[eax], 25, 14) + 1;
+ info_p->cpuid_cores_per_package
+ = bitfield(reg[eax], 31, 26) + 1;
+ cache_linesize = bitfield(reg[ebx], 11, 0) + 1;
+ cache_partitions = bitfield(reg[ebx], 21, 12) + 1;
+ cache_associativity = bitfield(reg[ebx], 31, 22) + 1;
+ cache_sets = bitfield(reg[ecx], 31, 0) + 1;
+
+ /* Map type/levels returned by CPUID into cache_type_t */
+ switch (cache_level) {
+ case 1:
+ type = cache_type == 1 ? L1D :
+ cache_type == 2 ? L1I :
+ Lnone;
+ break;
+ case 2:
+ type = cache_type == 3 ? L2U :
+ Lnone;
+ break;
+ case 3:
+ type = cache_type == 3 ? L3U :
+ Lnone;
+ break;
+ default:
+ type = Lnone;
+ }
+
+ /* The total size of a cache is:
+ * ( linesize * sets * associativity )
+ */
+ if (type != Lnone) {
+ cache_size = cache_linesize * cache_sets * cache_associativity;
+ info_p->cache_size[type] = cache_size;
+ info_p->cache_sharing[type] = cache_sharing;
+ info_p->cache_partitions[type] = cache_partitions;
+ linesizes[type] = cache_linesize;
+
+ /* Compute the number of page colors for this cache,
+ * which is:
+ * ( linesize * sets ) / page_size
+ *
+ * To help visualize this, consider two views of a
+ * physical address. To the cache, it is composed
+ * of a line offset, a set selector, and a tag.
+ * To VM, it is composed of a page offset, a page
+ * color, and other bits in the pageframe number:
+ *
+ * +-----------------+---------+--------+
+ * cache: | tag | set | offset |
+ * +-----------------+---------+--------+
+ *
+ * +-----------------+-------+----------+
+ * VM: | don't care | color | pg offset|
+ * +-----------------+-------+----------+
+ *
+ * The color is those bits in (set+offset) not covered
+ * by the page offset.
+ */
+ colors = ( cache_linesize * cache_sets ) >> 12;
+
+ if ( colors > vm_cache_geometry_colors )
+ vm_cache_geometry_colors = colors;
+ }
+ }
+
+ /*
+ * If deterministic cache parameters are not available, use
+ * something else
+ */
+ if (info_p->cpuid_cores_per_package == 0) {
+ info_p->cpuid_cores_per_package = 1;
+
+ /* cpuid define in 1024 quantities */
+ info_p->cache_size[L2U] = info_p->cpuid_cache_size * 1024;
+ info_p->cache_sharing[L2U] = 1;
+ info_p->cache_partitions[L2U] = 1;
+
+ linesizes[L2U] = info_p->cpuid_cache_linesize;
+ }
+
+ /*
+ * What linesize to publish? We use the L2 linesize if any,
+ * else the L1D.
+ */
+ if ( linesizes[L2U] )
+ info_p->cache_linesize = linesizes[L2U];
+ else if (linesizes[L1D])
+ info_p->cache_linesize = linesizes[L1D];
+ else panic("no linesize");
+}
+
+static void
+cpuid_set_generic_info(i386_cpu_info_t *info_p)
+{
+ uint32_t cpuid_reg[4];
+ uint32_t max_extid;
+ char str[128], *p;
+
+ /* do cpuid 0 to get vendor */
+ do_cpuid(0, cpuid_reg);
+ bcopy((char *)&cpuid_reg[ebx], &info_p->cpuid_vendor[0], 4); /* ug */
+ bcopy((char *)&cpuid_reg[ecx], &info_p->cpuid_vendor[8], 4);
+ bcopy((char *)&cpuid_reg[edx], &info_p->cpuid_vendor[4], 4);
+ info_p->cpuid_vendor[12] = 0;
+
+ /* get extended cpuid results */
+ do_cpuid(0x80000000, cpuid_reg);
+ max_extid = cpuid_reg[eax];
+
+ /* check to see if we can get brand string */
+ if (max_extid >= 0x80000004) {
+ /*
+ * The brand string 48 bytes (max), guaranteed to
+ * be NUL terminated.
+ */
+ do_cpuid(0x80000002, cpuid_reg);
+ bcopy((char *)cpuid_reg, &str[0], 16);
+ do_cpuid(0x80000003, cpuid_reg);
+ bcopy((char *)cpuid_reg, &str[16], 16);
+ do_cpuid(0x80000004, cpuid_reg);
+ bcopy((char *)cpuid_reg, &str[32], 16);
+ for (p = str; *p != '\0'; p++) {
+ if (*p != ' ') break;
+ }
+ strlcpy(info_p->cpuid_brand_string,
+ p, sizeof(info_p->cpuid_brand_string));
+
+ if (!strncmp(info_p->cpuid_brand_string, CPUID_STRING_UNKNOWN,
+ min(sizeof(info_p->cpuid_brand_string),
+ strlen(CPUID_STRING_UNKNOWN) + 1))) {
+ /*
+ * This string means we have a firmware-programmable brand string,
+ * and the firmware couldn't figure out what sort of CPU we have.
+ */
+ info_p->cpuid_brand_string[0] = '\0';
+ }
+ }
-/*
- * CPU identification
- */
-unsigned int cpuid_value;
-unsigned char cpuid_type;
-unsigned char cpuid_family;
-unsigned char cpuid_model;
-unsigned char cpuid_stepping;
-unsigned int cpuid_feature;
-char cpuid_vid[CPUID_VID_SIZE + 1];
-unsigned char cpuid_cache[CPUID_CACHE_SIZE];
+ /* Get cache and addressing info. */
+ if (max_extid >= 0x80000006) {
+ do_cpuid(0x80000006, cpuid_reg);
+ info_p->cpuid_cache_linesize = bitfield(cpuid_reg[ecx], 7, 0);
+ info_p->cpuid_cache_L2_associativity =
+ bitfield(cpuid_reg[ecx],15,12);
+ info_p->cpuid_cache_size = bitfield(cpuid_reg[ecx],31,16);
+ do_cpuid(0x80000008, cpuid_reg);
+ info_p->cpuid_address_bits_physical =
+ bitfield(cpuid_reg[eax], 7, 0);
+ info_p->cpuid_address_bits_virtual =
+ bitfield(cpuid_reg[eax],15, 8);
+ }
-/*
- * Return correct CPU_TYPE
- */
-/*ARGSUSED*/
-cpu_type_t
-cpuid_cputype(
- int my_cpu)
+ /* get processor signature and decode */
+ do_cpuid(1, cpuid_reg);
+ info_p->cpuid_signature = cpuid_reg[eax];
+ info_p->cpuid_stepping = bitfield(cpuid_reg[eax], 3, 0);
+ info_p->cpuid_model = bitfield(cpuid_reg[eax], 7, 4);
+ info_p->cpuid_family = bitfield(cpuid_reg[eax], 11, 8);
+ info_p->cpuid_type = bitfield(cpuid_reg[eax], 13, 12);
+ info_p->cpuid_extmodel = bitfield(cpuid_reg[eax], 19, 16);
+ info_p->cpuid_extfamily = bitfield(cpuid_reg[eax], 27, 20);
+ info_p->cpuid_brand = bitfield(cpuid_reg[ebx], 7, 0);
+ info_p->cpuid_features = quad(cpuid_reg[ecx], cpuid_reg[edx]);
+
+ /* Fold extensions into family/model */
+ if (info_p->cpuid_family == 0x0f)
+ info_p->cpuid_family += info_p->cpuid_extfamily;
+ if (info_p->cpuid_family == 0x0f || info_p->cpuid_family== 0x06)
+ info_p->cpuid_model += (info_p->cpuid_extmodel << 4);
+
+ if (info_p->cpuid_features & CPUID_FEATURE_HTT)
+ info_p->cpuid_logical_per_package =
+ bitfield(cpuid_reg[ebx], 23, 16);
+ else
+ info_p->cpuid_logical_per_package = 1;
+
+ if (max_extid >= 0x80000001) {
+ do_cpuid(0x80000001, cpuid_reg);
+ info_p->cpuid_extfeatures =
+ quad(cpuid_reg[ecx], cpuid_reg[edx]);
+ }
+
+ if (info_p->cpuid_extfeatures && CPUID_FEATURE_MONITOR) {
+ /*
+ * Extract the Monitor/Mwait Leaf info:
+ */
+ do_cpuid(5, cpuid_reg);
+ info_p->cpuid_mwait_linesize_min = cpuid_reg[eax];
+ info_p->cpuid_mwait_linesize_max = cpuid_reg[ebx];
+ info_p->cpuid_mwait_extensions = cpuid_reg[ecx];
+ info_p->cpuid_mwait_sub_Cstates = cpuid_reg[edx];
+
+ /*
+ * And the thermal and Power Leaf while we're at it:
+ */
+ do_cpuid(6, cpuid_reg);
+ info_p->cpuid_thermal_sensor =
+ bitfield(cpuid_reg[eax], 0, 0);
+ info_p->cpuid_thermal_dynamic_acceleration =
+ bitfield(cpuid_reg[eax], 1, 1);
+ info_p->cpuid_thermal_thresholds =
+ bitfield(cpuid_reg[ebx], 3, 0);
+ info_p->cpuid_thermal_ACNT_MCNT =
+ bitfield(cpuid_reg[ecx], 0, 0);
+
+ /*
+ * And the Architectural Performance Monitoring Leaf:
+ */
+ do_cpuid(0xa, cpuid_reg);
+ info_p->cpuid_arch_perf_version =
+ bitfield(cpuid_reg[eax], 7, 0);
+ info_p->cpuid_arch_perf_number =
+ bitfield(cpuid_reg[eax],15, 8);
+ info_p->cpuid_arch_perf_width =
+ bitfield(cpuid_reg[eax],23,16);
+ info_p->cpuid_arch_perf_events_number =
+ bitfield(cpuid_reg[eax],31,24);
+ info_p->cpuid_arch_perf_events =
+ cpuid_reg[ebx];
+ info_p->cpuid_arch_perf_fixed_number =
+ bitfield(cpuid_reg[edx], 4, 0);
+ info_p->cpuid_arch_perf_fixed_width =
+ bitfield(cpuid_reg[edx],12, 5);
+
+ }
+
+ return;
+}
+
+void
+cpuid_set_info(void)
+{
+ bzero((void *)&cpuid_cpu_info, sizeof(cpuid_cpu_info));
+
+ cpuid_set_generic_info(&cpuid_cpu_info);
+
+ /* verify we are running on a supported CPU */
+ if ((strncmp(CPUID_VID_INTEL, cpuid_cpu_info.cpuid_vendor,
+ min(strlen(CPUID_STRING_UNKNOWN) + 1,
+ sizeof(cpuid_cpu_info.cpuid_vendor)))) ||
+ (cpuid_cpu_info.cpuid_family != 6) ||
+ (cpuid_cpu_info.cpuid_model < 13))
+ panic("Unsupported CPU");
+
+ cpuid_cpu_info.cpuid_cpu_type = CPU_TYPE_X86;
+ cpuid_cpu_info.cpuid_cpu_subtype = CPU_SUBTYPE_X86_ARCH1;
+
+ cpuid_set_cache_info(&cpuid_cpu_info);
+
+ cpuid_cpu_info.cpuid_model_string = ""; /* deprecated */
+}
+
+static struct {
+ uint64_t mask;
+ const char *name;
+} feature_map[] = {
+ {CPUID_FEATURE_FPU, "FPU",},
+ {CPUID_FEATURE_VME, "VME",},
+ {CPUID_FEATURE_DE, "DE",},
+ {CPUID_FEATURE_PSE, "PSE",},
+ {CPUID_FEATURE_TSC, "TSC",},
+ {CPUID_FEATURE_MSR, "MSR",},
+ {CPUID_FEATURE_PAE, "PAE",},
+ {CPUID_FEATURE_MCE, "MCE",},
+ {CPUID_FEATURE_CX8, "CX8",},
+ {CPUID_FEATURE_APIC, "APIC",},
+ {CPUID_FEATURE_SEP, "SEP",},
+ {CPUID_FEATURE_MTRR, "MTRR",},
+ {CPUID_FEATURE_PGE, "PGE",},
+ {CPUID_FEATURE_MCA, "MCA",},
+ {CPUID_FEATURE_CMOV, "CMOV",},
+ {CPUID_FEATURE_PAT, "PAT",},
+ {CPUID_FEATURE_PSE36, "PSE36",},
+ {CPUID_FEATURE_PSN, "PSN",},
+ {CPUID_FEATURE_CLFSH, "CLFSH",},
+ {CPUID_FEATURE_DS, "DS",},
+ {CPUID_FEATURE_ACPI, "ACPI",},
+ {CPUID_FEATURE_MMX, "MMX",},
+ {CPUID_FEATURE_FXSR, "FXSR",},
+ {CPUID_FEATURE_SSE, "SSE",},
+ {CPUID_FEATURE_SSE2, "SSE2",},
+ {CPUID_FEATURE_SS, "SS",},
+ {CPUID_FEATURE_HTT, "HTT",},
+ {CPUID_FEATURE_TM, "TM",},
+ {CPUID_FEATURE_SSE3, "SSE3"},
+ {CPUID_FEATURE_MONITOR, "MON"},
+ {CPUID_FEATURE_DSCPL, "DSCPL"},
+ {CPUID_FEATURE_VMX, "VMX"},
+ {CPUID_FEATURE_SMX, "SMX"},
+ {CPUID_FEATURE_EST, "EST"},
+ {CPUID_FEATURE_TM2, "TM2"},
+ {CPUID_FEATURE_SSSE3, "SSSE3"},
+ {CPUID_FEATURE_CID, "CID"},
+ {CPUID_FEATURE_CX16, "CX16"},
+ {CPUID_FEATURE_xTPR, "TPR"},
+ {CPUID_FEATURE_PDCM, "PDCM"},
+ {CPUID_FEATURE_SSE4_1, "SSE4.1"},
+ {CPUID_FEATURE_SSE4_2, "SSE4.2"},
+ {CPUID_FEATURE_POPCNT, "POPCNT"},
+ {0, 0}
+},
+extfeature_map[] = {
+ {CPUID_EXTFEATURE_SYSCALL, "SYSCALL"},
+ {CPUID_EXTFEATURE_XD, "XD"},
+ {CPUID_EXTFEATURE_EM64T, "EM64T"},
+ {CPUID_EXTFEATURE_LAHF, "LAHF"},
+ {0, 0}
+};
+
+i386_cpu_info_t *
+cpuid_info(void)
+{
+ /* Set-up the cpuid_indo stucture lazily */
+ if (cpuid_cpu_infop == NULL) {
+ cpuid_set_info();
+ cpuid_cpu_infop = &cpuid_cpu_info;
+ }
+ return cpuid_cpu_infop;
+}
+
+char *
+cpuid_get_feature_names(uint64_t features, char *buf, unsigned buf_len)
+{
+ int len = -1;
+ char *p = buf;
+ int i;
+
+ for (i = 0; feature_map[i].mask != 0; i++) {
+ if ((features & feature_map[i].mask) == 0)
+ continue;
+ if (len > 0)
+ *p++ = ' ';
+ len = min(strlen(feature_map[i].name), (buf_len-1) - (p-buf));
+ if (len == 0)
+ break;
+ bcopy(feature_map[i].name, p, len);
+ p += len;
+ }
+ *p = '\0';
+ return buf;
+}
+
+char *
+cpuid_get_extfeature_names(uint64_t extfeatures, char *buf, unsigned buf_len)
+{
+ int len = -1;
+ char *p = buf;
+ int i;
+
+ for (i = 0; extfeature_map[i].mask != 0; i++) {
+ if ((extfeatures & extfeature_map[i].mask) == 0)
+ continue;
+ if (len > 0)
+ *p++ = ' ';
+ len = min(strlen(extfeature_map[i].name), (buf_len-1)-(p-buf));
+ if (len == 0)
+ break;
+ bcopy(extfeature_map[i].name, p, len);
+ p += len;
+ }
+ *p = '\0';
+ return buf;
+}
+
+
+#if CONFIG_NO_KPRINTF_STRINGS
+void
+cpuid_feature_display(
+ __unused const char *header)
+{
+}
+
+void
+cpuid_extfeature_display(
+ __unused const char *header)
{
-#ifndef MACH_BSD /* FIXME - add more family/chip types */
- switch (cpuid_family) {
- case CPUID_FAMILY_PPRO:
- return (CPU_TYPE_PENTIUMPRO);
- case CPUID_FAMILY_P5:
- return (CPU_TYPE_PENTIUM);
- case CPUID_FAMILY_486:
- return (CPU_TYPE_I486);
- default:
- break;
- }
-#endif
- return (CPU_TYPE_I386);
}
-/*
- * Display processor signature
- */
-/*ARGSUSED*/
void
cpuid_cpu_display(
- char *header,
- int my_cpu)
+ __unused const char *header)
{
- struct cpuid_name *name;
- unsigned int i;
- unsigned int *freq;
- unsigned int mhz;
- unsigned int feature;
- char **flag;
- extern unsigned int delaycount;
-
- /*
- * Identify vendor ID
- */
- for (name = cpuid_name; name->name != (char *)0; name++) {
- char *p = name->name;
- char *q = cpuid_vid;
- while (*p == *q && *p != 0) {
- p++;
- q++;
+}
+#else /* CONFIG_NO_KPRINTF_STRINGS */
+void
+cpuid_feature_display(
+ const char *header)
+{
+ char buf[256];
+
+ kprintf("%s: %s\n", header,
+ cpuid_get_feature_names(cpuid_features(),
+ buf, sizeof(buf)));
+ if (cpuid_features() & CPUID_FEATURE_HTT) {
+#define s_if_plural(n) ((n > 1) ? "s" : "")
+ kprintf(" HTT: %d core%s per package;"
+ " %d logical cpu%s per package\n",
+ cpuid_cpu_info.cpuid_cores_per_package,
+ s_if_plural(cpuid_cpu_info.cpuid_cores_per_package),
+ cpuid_cpu_info.cpuid_logical_per_package,
+ s_if_plural(cpuid_cpu_info.cpuid_logical_per_package));
}
- if (*p == '\0' && *q == '\0')
- break;
- }
- if (name->name == (char *)0) {
- printf("Unrecognized processor vendor id = '%s'\n", cpuid_vid);
- return;
- }
+}
- /*
- * Identify Product ID
- */
- for (i = 0; i < name->size; i++)
- if (name->product[i].type == cpuid_type &&
- name->product[i].family == cpuid_family &&
- name->product[i].model == cpuid_model)
- break;
- if (i == name->size) {
- printf("%s processor (type = 0x%x, family = 0x%x, model = 0x%x)\n",
- "Unrecognized", cpuid_type, cpuid_family, cpuid_model);
- return;
+void
+cpuid_extfeature_display(
+ const char *header)
+{
+ char buf[256];
+
+ kprintf("%s: %s\n", header,
+ cpuid_get_extfeature_names(cpuid_extfeatures(),
+ buf, sizeof(buf)));
+}
+
+void
+cpuid_cpu_display(
+ const char *header)
+{
+ if (cpuid_cpu_info.cpuid_brand_string[0] != '\0') {
+ kprintf("%s: %s\n", header, cpuid_cpu_info.cpuid_brand_string);
}
+}
+#endif /* !CONFIG_NO_KPRINTF_STRINGS */
+
+unsigned int
+cpuid_family(void)
+{
+ return cpuid_info()->cpuid_family;
+}
+
+cpu_type_t
+cpuid_cputype(void)
+{
+ return cpuid_info()->cpuid_cpu_type;
+}
+
+cpu_subtype_t
+cpuid_cpusubtype(void)
+{
+ return cpuid_info()->cpuid_cpu_subtype;
+}
+
+uint64_t
+cpuid_features(void)
+{
+ static int checked = 0;
+ char fpu_arg[16] = { 0 };
- /*
- * Look for frequency and adjust it to known values
- */
- mhz = (1000 * delaycount) / name->product[i].delay;
- for (freq = name->product[i].frequency; *freq != 0; freq++)
- if (*freq >= mhz)
- break;
- if (*freq == 0)
- mhz = *(freq - 1);
- else if (freq == name->product[i].frequency)
- mhz = *freq;
- else if (*freq - mhz > mhz - *(freq - 1))
- mhz = *(freq - 1);
- else if (*freq != mhz)
- mhz = *freq;
-
- /*
- * Display product and frequency
- */
- printf("%s: %s at %d MHz (signature = %d/%d/%d/%d)\n",
- header, name->product[i].name, mhz, cpuid_type,
- cpuid_family, cpuid_model, cpuid_stepping);
-
- /*
- * Display feature (if any)
- */
- if (cpuid_feature) {
- i = 0;
- flag = cpuid_flag;
- for (feature = cpuid_feature; feature != 0; feature >>= 1) {
- if (feature & 1)
- if (i == 0) {
- printf("%s: %s", header, *flag);
- i = 1;
- } else
- printf(", %s", *flag);
- flag++;
+ (void) cpuid_info();
+ if (!checked) {
+ /* check for boot-time fpu limitations */
+ if (PE_parse_boot_arg("_fpu", &fpu_arg[0])) {
+ printf("limiting fpu features to: %s\n", fpu_arg);
+ if (!strncmp("387", fpu_arg, sizeof("387")) || !strncmp("mmx", fpu_arg, sizeof("mmx"))) {
+ printf("no sse or sse2\n");
+ cpuid_cpu_info.cpuid_features &= ~(CPUID_FEATURE_SSE | CPUID_FEATURE_SSE2 | CPUID_FEATURE_FXSR);
+ } else if (!strncmp("sse", fpu_arg, sizeof("sse"))) {
+ printf("no sse2\n");
+ cpuid_cpu_info.cpuid_features &= ~(CPUID_FEATURE_SSE2);
+ }
+ }
+ checked = 1;
}
- printf("\n");
- }
+ return cpuid_cpu_info.cpuid_features;
}
+uint64_t
+cpuid_extfeatures(void)
+{
+ return cpuid_info()->cpuid_extfeatures;
+}
+
+
+#if MACH_KDB
+
/*
- * Display processor configuration information
+ * Display the cpuid
+ * *
+ * cp
*/
-/*ARGSUSED*/
-void
-cpuid_cache_display(
- char *header,
- int my_cpu)
+void
+db_cpuid(__unused db_expr_t addr,
+ __unused int have_addr,
+ __unused db_expr_t count,
+ __unused char *modif)
{
- struct cpuid_cache_desc *desc;
- unsigned int i;
-
- if (cpuid_cache[CPUID_CACHE_VALID] == 1)
- for (i = 0; i < CPUID_CACHE_SIZE; i++) {
- if (i != CPUID_CACHE_VALID || cpuid_cache[i] == CPUID_CACHE_NULL)
- continue;
- for (desc = cpuid_cache_desc;
- desc->description != (char *)0; desc++)
- if (desc->value == cpuid_cache[i])
- break;
- if (desc->description != (char *)0)
- printf("%s: %s\n", header, desc->description);
+
+ uint32_t i, mid;
+ uint32_t cpid[4];
+
+ do_cpuid(0, cpid); /* Get the first cpuid which is the number of
+ * basic ids */
+ db_printf("%08X - %08X %08X %08X %08X\n",
+ 0, cpid[eax], cpid[ebx], cpid[ecx], cpid[edx]);
+
+ mid = cpid[eax]; /* Set the number */
+ for (i = 1; i <= mid; i++) { /* Dump 'em out */
+ do_cpuid(i, cpid); /* Get the next */
+ db_printf("%08X - %08X %08X %08X %08X\n",
+ i, cpid[eax], cpid[ebx], cpid[ecx], cpid[edx]);
+ }
+ db_printf("\n");
+
+ do_cpuid(0x80000000, cpid); /* Get the first extended cpuid which
+ * is the number of extended ids */
+ db_printf("%08X - %08X %08X %08X %08X\n",
+ 0x80000000, cpid[eax], cpid[ebx], cpid[ecx], cpid[edx]);
+
+ mid = cpid[eax]; /* Set the number */
+ for (i = 0x80000001; i <= mid; i++) { /* Dump 'em out */
+ do_cpuid(i, cpid); /* Get the next */
+ db_printf("%08X - %08X %08X %08X %08X\n",
+ i, cpid[eax], cpid[ebx], cpid[ecx], cpid[edx]);
}
}
+
+#endif
projects / apple / xnu.git / blobdiff