diff --git a/arch/powerpc/include/asm/perf_counter.h b/arch/powerpc/include/asm/perf_counter.h index 2ceb0fefa93a5bfc84921b8e2077ae8200806e5f..8ccd4e155768fa749edf3f65fbc0c5a951ef9819 100644 --- a/arch/powerpc/include/asm/perf_counter.h +++ b/arch/powerpc/include/asm/perf_counter.h @@ -21,6 +21,7 @@ * describe the PMU on a particular POWER-family CPU. */ struct power_pmu { + const char *name; int n_counter; int max_alternatives; unsigned long add_fields; @@ -41,8 +42,6 @@ struct power_pmu { [PERF_COUNT_HW_CACHE_RESULT_MAX]; }; -extern struct power_pmu *ppmu; - /* * Values for power_pmu.flags */ @@ -56,6 +55,8 @@ extern struct power_pmu *ppmu; #define PPMU_LIMITED_PMC_REQD 2 /* have to put this on a limited PMC */ #define PPMU_ONLY_COUNT_RUN 4 /* only counting in run state */ +extern int register_power_pmu(struct power_pmu *); + struct pt_regs; extern unsigned long perf_misc_flags(struct pt_regs *regs); extern unsigned long perf_instruction_pointer(struct pt_regs *regs); diff --git a/arch/powerpc/kernel/perf_counter.c b/arch/powerpc/kernel/perf_counter.c index 9300638b8c265250d506de9540655014980244c4..25e656c14945727acb42661d84a54d87ab5808df 100644 --- a/arch/powerpc/kernel/perf_counter.c +++ b/arch/powerpc/kernel/perf_counter.c @@ -1214,42 +1214,14 @@ void hw_perf_counter_setup(int cpu) cpuhw->mmcr[0] = MMCR0_FC; } -extern struct power_pmu power4_pmu; -extern struct power_pmu ppc970_pmu; -extern struct power_pmu power5_pmu; -extern struct power_pmu power5p_pmu; -extern struct power_pmu power6_pmu; -extern struct power_pmu power7_pmu; - -static int init_perf_counters(void) +int register_power_pmu(struct power_pmu *pmu) { - unsigned long pvr; - - /* XXX should get this from cputable */ - pvr = mfspr(SPRN_PVR); - switch (PVR_VER(pvr)) { - case PV_POWER4: - case PV_POWER4p: - ppmu = &power4_pmu; - break; - case PV_970: - case PV_970FX: - case PV_970MP: - ppmu = &ppc970_pmu; - break; - case PV_POWER5: - ppmu = &power5_pmu; - break; - case PV_POWER5p: - ppmu = &power5p_pmu; - break; - case 0x3e: - ppmu = &power6_pmu; - break; - case 0x3f: - ppmu = &power7_pmu; - break; - } + if (ppmu) + return -EBUSY; /* something's already registered */ + + ppmu = pmu; + pr_info("%s performance monitor hardware support registered\n", + pmu->name); /* * Use FCHV to ignore kernel events if MSR.HV is set. @@ -1259,5 +1231,3 @@ static int init_perf_counters(void) return 0; } - -arch_initcall(init_perf_counters); diff --git a/arch/powerpc/kernel/power4-pmu.c b/arch/powerpc/kernel/power4-pmu.c index 81a1708f83b241cf0fdc881f7b928fec90a4680f..db90b0c5c27bbc05f9d66dc8a70c18f108e9ecf3 100644 --- a/arch/powerpc/kernel/power4-pmu.c +++ b/arch/powerpc/kernel/power4-pmu.c @@ -10,7 +10,9 @@ */ #include #include +#include #include +#include /* * Bits in event code for POWER4 @@ -587,7 +589,8 @@ static int power4_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = { }, }; -struct power_pmu power4_pmu = { +static struct power_pmu power4_pmu = { + .name = "POWER4/4+", .n_counter = 8, .max_alternatives = 5, .add_fields = 0x0000001100005555ul, @@ -600,3 +603,13 @@ struct power_pmu power4_pmu = { .generic_events = p4_generic_events, .cache_events = &power4_cache_events, }; + +static int init_power4_pmu(void) +{ + if (strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power4")) + return -ENODEV; + + return register_power_pmu(&power4_pmu); +} + +arch_initcall(init_power4_pmu); diff --git a/arch/powerpc/kernel/power5+-pmu.c b/arch/powerpc/kernel/power5+-pmu.c index aef144d503b0cd93e121b6612626c37c055d7ec8..f4adca8e98a423a92941ad00c83ab6c174a7484e 100644 --- a/arch/powerpc/kernel/power5+-pmu.c +++ b/arch/powerpc/kernel/power5+-pmu.c @@ -10,7 +10,9 @@ */ #include #include +#include #include +#include /* * Bits in event code for POWER5+ (POWER5 GS) and POWER5++ (POWER5 GS DD3) @@ -657,7 +659,8 @@ static int power5p_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = { }, }; -struct power_pmu power5p_pmu = { +static struct power_pmu power5p_pmu = { + .name = "POWER5+/++", .n_counter = 6, .max_alternatives = MAX_ALT, .add_fields = 0x7000000000055ul, @@ -672,3 +675,14 @@ struct power_pmu power5p_pmu = { .generic_events = power5p_generic_events, .cache_events = &power5p_cache_events, }; + +static int init_power5p_pmu(void) +{ + if (strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power5+") + && strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power5++")) + return -ENODEV; + + return register_power_pmu(&power5p_pmu); +} + +arch_initcall(init_power5p_pmu); diff --git a/arch/powerpc/kernel/power5-pmu.c b/arch/powerpc/kernel/power5-pmu.c index 8694c73bfb52ae6c02765ad5251fa072adbf193f..29b2c6c0e83a2a37b582fe1e98a986ff0daefaba 100644 --- a/arch/powerpc/kernel/power5-pmu.c +++ b/arch/powerpc/kernel/power5-pmu.c @@ -10,7 +10,9 @@ */ #include #include +#include #include +#include /* * Bits in event code for POWER5 (not POWER5++) @@ -599,7 +601,8 @@ static int power5_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = { }, }; -struct power_pmu power5_pmu = { +static struct power_pmu power5_pmu = { + .name = "POWER5", .n_counter = 6, .max_alternatives = MAX_ALT, .add_fields = 0x7000090000555ul, @@ -612,3 +615,13 @@ struct power_pmu power5_pmu = { .generic_events = power5_generic_events, .cache_events = &power5_cache_events, }; + +static int init_power5_pmu(void) +{ + if (strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power5")) + return -ENODEV; + + return register_power_pmu(&power5_pmu); +} + +arch_initcall(init_power5_pmu); diff --git a/arch/powerpc/kernel/power6-pmu.c b/arch/powerpc/kernel/power6-pmu.c index 8898622ac28c68d68e64a7becb196a09f8992e60..09ae5bf5bda78fb86b64b1d14d44f9722b63b9a6 100644 --- a/arch/powerpc/kernel/power6-pmu.c +++ b/arch/powerpc/kernel/power6-pmu.c @@ -10,7 +10,9 @@ */ #include #include +#include #include +#include /* * Bits in event code for POWER6 @@ -516,7 +518,8 @@ static int power6_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = { }, }; -struct power_pmu power6_pmu = { +static struct power_pmu power6_pmu = { + .name = "POWER6", .n_counter = 6, .max_alternatives = MAX_ALT, .add_fields = 0x1555, @@ -531,3 +534,13 @@ struct power_pmu power6_pmu = { .generic_events = power6_generic_events, .cache_events = &power6_cache_events, }; + +static int init_power6_pmu(void) +{ + if (strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power6")) + return -ENODEV; + + return register_power_pmu(&power6_pmu); +} + +arch_initcall(init_power6_pmu); diff --git a/arch/powerpc/kernel/power7-pmu.c b/arch/powerpc/kernel/power7-pmu.c index 658d1ae436a06c13b23201a951de02681b00aeb0..5d755ef7ac8f21d97fbe5ef347b38c44a0f17e23 100644 --- a/arch/powerpc/kernel/power7-pmu.c +++ b/arch/powerpc/kernel/power7-pmu.c @@ -10,7 +10,9 @@ */ #include #include +#include #include +#include /* * Bits in event code for POWER7 @@ -346,7 +348,8 @@ static int power7_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = { }, }; -struct power_pmu power7_pmu = { +static struct power_pmu power7_pmu = { + .name = "POWER7", .n_counter = 6, .max_alternatives = MAX_ALT + 1, .add_fields = 0x1555ul, @@ -359,3 +362,13 @@ struct power_pmu power7_pmu = { .generic_events = power7_generic_events, .cache_events = &power7_cache_events, }; + +static int init_power7_pmu(void) +{ + if (strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power7")) + return -ENODEV; + + return register_power_pmu(&power7_pmu); +} + +arch_initcall(init_power7_pmu); diff --git a/arch/powerpc/kernel/ppc970-pmu.c b/arch/powerpc/kernel/ppc970-pmu.c index 3ed88333412f0046b37ded3863195d800ebc44b0..6637c87fe70eb27812578d9c7d2f51a904f6f1b8 100644 --- a/arch/powerpc/kernel/ppc970-pmu.c +++ b/arch/powerpc/kernel/ppc970-pmu.c @@ -10,7 +10,9 @@ */ #include #include +#include #include +#include /* * Bits in event code for PPC970 @@ -470,7 +472,8 @@ static int ppc970_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = { }, }; -struct power_pmu ppc970_pmu = { +static struct power_pmu ppc970_pmu = { + .name = "PPC970/FX/MP", .n_counter = 8, .max_alternatives = 2, .add_fields = 0x001100005555ull, @@ -483,3 +486,14 @@ struct power_pmu ppc970_pmu = { .generic_events = ppc970_generic_events, .cache_events = &ppc970_cache_events, }; + +static int init_ppc970_pmu(void) +{ + if (strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/970") + && strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/970MP")) + return -ENODEV; + + return register_power_pmu(&ppc970_pmu); +} + +arch_initcall(init_ppc970_pmu);