From: Thomas Richter Date: Mon, 26 Apr 2021 12:38:25 +0000 (+0200) Subject: s390/cpumf: move counter set size calculation to common place X-Git-Tag: accepted/tizen/unified/20230118.172025~7268^2~5 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1eefa4f4399b74dc7671c4e34c1b1c6244acff22;p=platform%2Fkernel%2Flinux-rpi.git s390/cpumf: move counter set size calculation to common place The function to calculate the size of counter sets is renamed from cf_diag_ctrset_size() to cpum_cf_ctrset_size() and moved to the file containing common functions for the CPU Measurement Counter Facility. No functional change. Signed-off-by: Thomas Richter Acked-by : Sumanth Korikkar Signed-off-by: Heiko Carstens --- diff --git a/arch/s390/include/asm/cpu_mcf.h b/arch/s390/include/asm/cpu_mcf.h index 649b9fc..3e4cbcb 100644 --- a/arch/s390/include/asm/cpu_mcf.h +++ b/arch/s390/include/asm/cpu_mcf.h @@ -123,4 +123,6 @@ static inline int stccm_avail(void) return test_facility(142); } +size_t cpum_cf_ctrset_size(enum cpumf_ctr_set ctrset, + struct cpumf_ctr_info *info); #endif /* _ASM_S390_CPU_MCF_H */ diff --git a/arch/s390/kernel/perf_cpum_cf_common.c b/arch/s390/kernel/perf_cpum_cf_common.c index 3bced89..6d53215 100644 --- a/arch/s390/kernel/perf_cpum_cf_common.c +++ b/arch/s390/kernel/perf_cpum_cf_common.c @@ -170,6 +170,52 @@ static int cpum_cf_offline_cpu(unsigned int cpu) return cpum_cf_setup(cpu, PMC_RELEASE); } +/* Return the maximum possible counter set size (in number of 8 byte counters) + * depending on type and model number. + */ +size_t cpum_cf_ctrset_size(enum cpumf_ctr_set ctrset, + struct cpumf_ctr_info *info) +{ + size_t ctrset_size = 0; + + switch (ctrset) { + case CPUMF_CTR_SET_BASIC: + if (info->cfvn >= 1) + ctrset_size = 6; + break; + case CPUMF_CTR_SET_USER: + if (info->cfvn == 1) + ctrset_size = 6; + else if (info->cfvn >= 3) + ctrset_size = 2; + break; + case CPUMF_CTR_SET_CRYPTO: + if (info->csvn >= 1 && info->csvn <= 5) + ctrset_size = 16; + else if (info->csvn == 6) + ctrset_size = 20; + break; + case CPUMF_CTR_SET_EXT: + if (info->csvn == 1) + ctrset_size = 32; + else if (info->csvn == 2) + ctrset_size = 48; + else if (info->csvn >= 3 && info->csvn <= 5) + ctrset_size = 128; + else if (info->csvn == 6) + ctrset_size = 160; + break; + case CPUMF_CTR_SET_MT_DIAG: + if (info->csvn > 3) + ctrset_size = 48; + break; + case CPUMF_CTR_SET_MAX: + break; + } + + return ctrset_size; +} + static int __init cpum_cf_init(void) { int rc; diff --git a/arch/s390/kernel/perf_cpum_cf_diag.c b/arch/s390/kernel/perf_cpum_cf_diag.c index 2e3e7ed..08c985c 100644 --- a/arch/s390/kernel/perf_cpum_cf_diag.c +++ b/arch/s390/kernel/perf_cpum_cf_diag.c @@ -316,52 +316,6 @@ static void cf_diag_read(struct perf_event *event) debug_sprintf_event(cf_diag_dbg, 5, "%s event %p\n", __func__, event); } -/* Return the maximum possible counter set size (in number of 8 byte counters) - * depending on type and model number. - */ -static size_t cf_diag_ctrset_size(enum cpumf_ctr_set ctrset, - struct cpumf_ctr_info *info) -{ - size_t ctrset_size = 0; - - switch (ctrset) { - case CPUMF_CTR_SET_BASIC: - if (info->cfvn >= 1) - ctrset_size = 6; - break; - case CPUMF_CTR_SET_USER: - if (info->cfvn == 1) - ctrset_size = 6; - else if (info->cfvn >= 3) - ctrset_size = 2; - break; - case CPUMF_CTR_SET_CRYPTO: - if (info->csvn >= 1 && info->csvn <= 5) - ctrset_size = 16; - else if (info->csvn == 6) - ctrset_size = 20; - break; - case CPUMF_CTR_SET_EXT: - if (info->csvn == 1) - ctrset_size = 32; - else if (info->csvn == 2) - ctrset_size = 48; - else if (info->csvn >= 3 && info->csvn <= 5) - ctrset_size = 128; - else if (info->csvn == 6) - ctrset_size = 160; - break; - case CPUMF_CTR_SET_MT_DIAG: - if (info->csvn > 3) - ctrset_size = 48; - break; - case CPUMF_CTR_SET_MAX: - break; - } - - return ctrset_size; -} - /* Calculate memory needed to store all counter sets together with header and * trailer data. This is independend of the counter set authorization which * can vary depending on the configuration. @@ -372,7 +326,7 @@ static size_t cf_diag_ctrset_maxsize(struct cpumf_ctr_info *info) enum cpumf_ctr_set i; for (i = CPUMF_CTR_SET_BASIC; i < CPUMF_CTR_SET_MAX; ++i) { - size_t size = cf_diag_ctrset_size(i, info); + size_t size = cpum_cf_ctrset_size(i, info); if (size) max_size += size * sizeof(u64) + @@ -405,7 +359,7 @@ static size_t cf_diag_getctrset(struct cf_ctrset_entry *ctrdata, int ctrset, ctrdata->def = CF_DIAG_CTRSET_DEF; ctrdata->set = ctrset; ctrdata->res1 = 0; - ctrset_size = cf_diag_ctrset_size(ctrset, &cpuhw->info); + ctrset_size = cpum_cf_ctrset_size(ctrset, &cpuhw->info); if (ctrset_size) { /* Save data */ need = ctrset_size * sizeof(u64) + sizeof(*ctrdata); @@ -845,7 +799,7 @@ static void cf_diag_cpu_read(void *parm) if (!(p->sets & cpumf_ctr_ctl[set])) continue; /* Counter set not in list */ - set_size = cf_diag_ctrset_size(set, &cpuhw->info); + set_size = cpum_cf_ctrset_size(set, &cpuhw->info); space = sizeof(csd->data) - csd->used; space = cf_diag_cpuset_read(sp, set, set_size, space); if (space) { @@ -975,7 +929,7 @@ static size_t cf_diag_needspace(unsigned int sets) for (i = CPUMF_CTR_SET_BASIC; i < CPUMF_CTR_SET_MAX; ++i) { if (!(sets & cpumf_ctr_ctl[i])) continue; - bytes += cf_diag_ctrset_size(i, &cpuhw->info) * sizeof(u64) + + bytes += cpum_cf_ctrset_size(i, &cpuhw->info) * sizeof(u64) + sizeof(((struct s390_ctrset_setdata *)0)->set) + sizeof(((struct s390_ctrset_setdata *)0)->no_cnts); }