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Add yet another Shared L2 TLB (2M/4M pages). 

XXX need redesign.
This commit is contained in:
msaitoh 2018-03-09 08:49:32 +00:00
parent b4914b1997
commit 0a42effe43
2 changed files with 71 additions and 15 deletions
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7
sys/arch/x86/include/cacheinfo.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: cacheinfo.h,v 1.23 2018/03/05 05:44:07 msaitoh Exp $ */
/* $NetBSD: cacheinfo.h,v 1.24 2018/03/09 08:49:32 msaitoh Exp $ */
#ifndef _X86_CACHEINFO_H_
#define _X86_CACHEINFO_H_
@ -35,9 +35,10 @@ struct x86_cache_info {
#define CAI_L2_DTLB2 15 /* L2 Data TLB (2/4M pages) */
#define CAI_L2_STLB 16 /* Shared L2 TLB (4K pages) */
#define CAI_L2_STLB2 17 /* Shared L2 TLB (4K/2M pages) */
#define CAI_PREFETCH 18 /* Prefetch */
#define CAI_L2_STLB3 18 /* Shared L2 TLB (2M/4M pages) */
#define CAI_PREFETCH 19 /* Prefetch */
#define CAI_COUNT 19
#define CAI_COUNT 20
/*
* AMD Cache Info:

79
usr.sbin/cpuctl/arch/i386.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: i386.c,v 1.82 2018/03/05 10:54:05 msaitoh Exp $ */
/* $NetBSD: i386.c,v 1.83 2018/03/09 08:49:32 msaitoh Exp $ */
/*-
* Copyright (c) 1999, 2000, 2001, 2006, 2007, 2008 The NetBSD Foundation, Inc.
@ -57,7 +57,7 @@
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: i386.c,v 1.82 2018/03/05 10:54:05 msaitoh Exp $");
__RCSID("$NetBSD: i386.c,v 1.83 2018/03/09 08:49:32 msaitoh Exp $");
#endif /* not lint */
#include <sys/types.h>
@ -1094,6 +1094,7 @@ intel_cpu_cacheinfo(struct cpu_info *ci)
x86_cpuid(0x18, descs);
iterations = descs[0];
for (i = 0; i <= iterations; i++) {
uint32_t pgsize;
bool full;
x86_cpuid2(0x18, i, descs);
@ -1101,13 +1102,48 @@ intel_cpu_cacheinfo(struct cpu_info *ci)
if (type == CPUID_DATP_TCTYPE_N)
continue;
level = __SHIFTOUT(descs[3], CPUID_DATP_TCLEVEL);
pgsize = __SHIFTOUT(descs[1], CPUID_DATP_PGSIZE);
switch (level) {
case 1:
if (type == CPUID_DATP_TCTYPE_I)
caitype = CAI_ITLB; /* XXX or ITLB2? */
else if (type == CPUID_DATP_TCTYPE_D)
caitype = CAI_DTLB;
else
if (type == CPUID_DATP_TCTYPE_I) {
switch (pgsize) {
case CPUID_DATP_PGSIZE_4KB:
caitype = CAI_ITLB;
break;
case CPUID_DATP_PGSIZE_2MB
| CPUID_DATP_PGSIZE_4MB:
caitype = CAI_ITLB2;
break;
case CPUID_DATP_PGSIZE_1GB:
caitype = CAI_L1_1GBITLB;
break;
default:
aprint_error_dev(ci->ci_dev,
"error: unknown ITLB size (%d)\n",
pgsize);
caitype = CAI_ITLB;
break;
}
} else if (type == CPUID_DATP_TCTYPE_D) {
switch (pgsize) {
case CPUID_DATP_PGSIZE_4KB:
caitype = CAI_DTLB;
break;
case CPUID_DATP_PGSIZE_2MB
| CPUID_DATP_PGSIZE_4MB:
caitype = CAI_DTLB2;
break;
case CPUID_DATP_PGSIZE_1GB:
caitype = CAI_L1_1GBDTLB;
break;
default:
aprint_error_dev(ci->ci_dev,
"error: unknown DTLB size (%d)\n",
pgsize);
caitype = CAI_DTLB;
break;
}
} else
caitype = -1;
break;
case 2:
@ -1115,9 +1151,27 @@ intel_cpu_cacheinfo(struct cpu_info *ci)
caitype = CAI_L2_ITLB;
else if (type == CPUID_DATP_TCTYPE_D)
caitype = CAI_L2_DTLB;
else if (type == CPUID_DATP_TCTYPE_U)
caitype = CAI_L2_STLB;
else
else if (type == CPUID_DATP_TCTYPE_U) {
switch (pgsize) {
case CPUID_DATP_PGSIZE_4KB:
caitype = CAI_L2_STLB;
break;
case CPUID_DATP_PGSIZE_4KB
| CPUID_DATP_PGSIZE_2MB:
caitype = CAI_L2_STLB2;
break;
case CPUID_DATP_PGSIZE_2MB
| CPUID_DATP_PGSIZE_4MB:
caitype = CAI_L2_STLB3;
break;
default:
aprint_error_dev(ci->ci_dev,
"error: unknown L2 STLB size (%d)\n",
pgsize);
caitype = CAI_DTLB;
break;
}
} else
caitype = -1;
break;
case 3:
@ -1134,7 +1188,7 @@ intel_cpu_cacheinfo(struct cpu_info *ci)
level, type);
continue;
}
switch (__SHIFTOUT(descs[1], CPUID_DATP_PGSIZE)) {
switch (pgsize) {
case CPUID_DATP_PGSIZE_4KB:
linesize = 4 * 1024;
break;
@ -1165,7 +1219,7 @@ intel_cpu_cacheinfo(struct cpu_info *ci)
= ways * sets; /* entries */
ci->ci_cinfo[caitype].cai_associativity
= full ? 0xff : ways;
ci->ci_cinfo[caitype].cai_linesize = linesize; /* page size */
ci->ci_cinfo[caitype].cai_linesize = linesize; /* pg size */
}
}
@ -2276,6 +2330,7 @@ x86_print_cache_and_tlb_info(struct cpu_info *ci)
if (ci->ci_cinfo[CAI_L2_STLB].cai_totalsize != 0) {
sep = print_tlb_config(ci, CAI_L2_STLB, "L2 STLB", NULL);
sep = print_tlb_config(ci, CAI_L2_STLB2, NULL, sep);
sep = print_tlb_config(ci, CAI_L2_STLB3, NULL, sep);
if (sep != NULL)
aprint_verbose("\n");
}