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-rw-r--r--arch/ppc64/kernel/cputable.c13
-rw-r--r--arch/ppc64/kernel/sysfs.c48
-rw-r--r--include/asm-ppc64/cputable.h3
3 files changed, 45 insertions, 19 deletions
diff --git a/arch/ppc64/kernel/cputable.c b/arch/ppc64/kernel/cputable.c
index 4847f2ac8c9f..a20960e47105 100644
--- a/arch/ppc64/kernel/cputable.c
+++ b/arch/ppc64/kernel/cputable.c
@@ -59,6 +59,7 @@ struct cpu_spec cpu_specs[] = {
.cpu_user_features = COMMON_USER_PPC64,
.icache_bsize = 128,
.dcache_bsize = 128,
+ .num_pmcs = 8,
.cpu_setup = __setup_cpu_power3,
},
{ /* Power3+ */
@@ -71,6 +72,7 @@ struct cpu_spec cpu_specs[] = {
.cpu_user_features = COMMON_USER_PPC64,
.icache_bsize = 128,
.dcache_bsize = 128,
+ .num_pmcs = 8,
.cpu_setup = __setup_cpu_power3,
},
{ /* Northstar */
@@ -83,6 +85,7 @@ struct cpu_spec cpu_specs[] = {
.cpu_user_features = COMMON_USER_PPC64,
.icache_bsize = 128,
.dcache_bsize = 128,
+ .num_pmcs = 8,
.cpu_setup = __setup_cpu_power3,
},
{ /* Pulsar */
@@ -95,6 +98,7 @@ struct cpu_spec cpu_specs[] = {
.cpu_user_features = COMMON_USER_PPC64,
.icache_bsize = 128,
.dcache_bsize = 128,
+ .num_pmcs = 8,
.cpu_setup = __setup_cpu_power3,
},
{ /* I-star */
@@ -107,6 +111,7 @@ struct cpu_spec cpu_specs[] = {
.cpu_user_features = COMMON_USER_PPC64,
.icache_bsize = 128,
.dcache_bsize = 128,
+ .num_pmcs = 8,
.cpu_setup = __setup_cpu_power3,
},
{ /* S-star */
@@ -119,6 +124,7 @@ struct cpu_spec cpu_specs[] = {
.cpu_user_features = COMMON_USER_PPC64,
.icache_bsize = 128,
.dcache_bsize = 128,
+ .num_pmcs = 8,
.cpu_setup = __setup_cpu_power3,
},
{ /* Power4 */
@@ -131,6 +137,7 @@ struct cpu_spec cpu_specs[] = {
.cpu_user_features = COMMON_USER_PPC64,
.icache_bsize = 128,
.dcache_bsize = 128,
+ .num_pmcs = 8,
.cpu_setup = __setup_cpu_power4,
},
{ /* Power4+ */
@@ -143,6 +150,7 @@ struct cpu_spec cpu_specs[] = {
.cpu_user_features = COMMON_USER_PPC64,
.icache_bsize = 128,
.dcache_bsize = 128,
+ .num_pmcs = 8,
.cpu_setup = __setup_cpu_power4,
},
{ /* PPC970 */
@@ -157,6 +165,7 @@ struct cpu_spec cpu_specs[] = {
PPC_FEATURE_HAS_ALTIVEC_COMP,
.icache_bsize = 128,
.dcache_bsize = 128,
+ .num_pmcs = 8,
.cpu_setup = __setup_cpu_ppc970,
},
{ /* PPC970FX */
@@ -171,6 +180,7 @@ struct cpu_spec cpu_specs[] = {
PPC_FEATURE_HAS_ALTIVEC_COMP,
.icache_bsize = 128,
.dcache_bsize = 128,
+ .num_pmcs = 8,
.cpu_setup = __setup_cpu_ppc970,
},
{ /* PPC970MP */
@@ -199,6 +209,7 @@ struct cpu_spec cpu_specs[] = {
.cpu_user_features = COMMON_USER_PPC64,
.icache_bsize = 128,
.dcache_bsize = 128,
+ .num_pmcs = 6,
.cpu_setup = __setup_cpu_power4,
},
{ /* Power5 */
@@ -213,6 +224,7 @@ struct cpu_spec cpu_specs[] = {
.cpu_user_features = COMMON_USER_PPC64,
.icache_bsize = 128,
.dcache_bsize = 128,
+ .num_pmcs = 6,
.cpu_setup = __setup_cpu_power4,
},
{ /* BE DD1.x */
@@ -239,6 +251,7 @@ struct cpu_spec cpu_specs[] = {
.cpu_user_features = COMMON_USER_PPC64,
.icache_bsize = 128,
.dcache_bsize = 128,
+ .num_pmcs = 6,
.cpu_setup = __setup_cpu_power4,
}
};
diff --git a/arch/ppc64/kernel/sysfs.c b/arch/ppc64/kernel/sysfs.c
index f311ee7c0070..6654b350979c 100644
--- a/arch/ppc64/kernel/sysfs.c
+++ b/arch/ppc64/kernel/sysfs.c
@@ -215,18 +215,23 @@ static void register_cpu_online(unsigned int cpu)
if (cpu_has_feature(CPU_FTR_MMCRA))
sysdev_create_file(s, &attr_mmcra);
- sysdev_create_file(s, &attr_pmc1);
- sysdev_create_file(s, &attr_pmc2);
- sysdev_create_file(s, &attr_pmc3);
- sysdev_create_file(s, &attr_pmc4);
- sysdev_create_file(s, &attr_pmc5);
- sysdev_create_file(s, &attr_pmc6);
-
- if (cpu_has_feature(CPU_FTR_PMC8)) {
+ if (cur_cpu_spec->num_pmcs >= 1)
+ sysdev_create_file(s, &attr_pmc1);
+ if (cur_cpu_spec->num_pmcs >= 2)
+ sysdev_create_file(s, &attr_pmc2);
+ if (cur_cpu_spec->num_pmcs >= 3)
+ sysdev_create_file(s, &attr_pmc3);
+ if (cur_cpu_spec->num_pmcs >= 4)
+ sysdev_create_file(s, &attr_pmc4);
+ if (cur_cpu_spec->num_pmcs >= 5)
+ sysdev_create_file(s, &attr_pmc5);
+ if (cur_cpu_spec->num_pmcs >= 6)
+ sysdev_create_file(s, &attr_pmc6);
+ if (cur_cpu_spec->num_pmcs >= 7)
sysdev_create_file(s, &attr_pmc7);
+ if (cur_cpu_spec->num_pmcs >= 8)
sysdev_create_file(s, &attr_pmc8);
- }
-
+
if (cpu_has_feature(CPU_FTR_SMT))
sysdev_create_file(s, &attr_purr);
}
@@ -252,17 +257,22 @@ static void unregister_cpu_online(unsigned int cpu)
if (cpu_has_feature(CPU_FTR_MMCRA))
sysdev_remove_file(s, &attr_mmcra);
- sysdev_remove_file(s, &attr_pmc1);
- sysdev_remove_file(s, &attr_pmc2);
- sysdev_remove_file(s, &attr_pmc3);
- sysdev_remove_file(s, &attr_pmc4);
- sysdev_remove_file(s, &attr_pmc5);
- sysdev_remove_file(s, &attr_pmc6);
-
- if (cpu_has_feature(CPU_FTR_PMC8)) {
+ if (cur_cpu_spec->num_pmcs >= 1)
+ sysdev_remove_file(s, &attr_pmc1);
+ if (cur_cpu_spec->num_pmcs >= 2)
+ sysdev_remove_file(s, &attr_pmc2);
+ if (cur_cpu_spec->num_pmcs >= 3)
+ sysdev_remove_file(s, &attr_pmc3);
+ if (cur_cpu_spec->num_pmcs >= 4)
+ sysdev_remove_file(s, &attr_pmc4);
+ if (cur_cpu_spec->num_pmcs >= 5)
+ sysdev_remove_file(s, &attr_pmc5);
+ if (cur_cpu_spec->num_pmcs >= 6)
+ sysdev_remove_file(s, &attr_pmc6);
+ if (cur_cpu_spec->num_pmcs >= 7)
sysdev_remove_file(s, &attr_pmc7);
+ if (cur_cpu_spec->num_pmcs >= 8)
sysdev_remove_file(s, &attr_pmc8);
- }
if (cpu_has_feature(CPU_FTR_SMT))
sysdev_remove_file(s, &attr_purr);
diff --git a/include/asm-ppc64/cputable.h b/include/asm-ppc64/cputable.h
index ae6cf3830108..0c8affc657fa 100644
--- a/include/asm-ppc64/cputable.h
+++ b/include/asm-ppc64/cputable.h
@@ -52,6 +52,9 @@ struct cpu_spec {
unsigned int icache_bsize;
unsigned int dcache_bsize;
+ /* number of performance monitor counters */
+ unsigned int num_pmcs;
+
/* this is called to initialize various CPU bits like L1 cache,
* BHT, SPD, etc... from head.S before branching to identify_machine
*/
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-16 12:27:23 +0000