diff options
| author | Thomas Gleixner <[email protected]> | 2018-06-22 21:20:35 +0200 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2018-06-22 21:20:35 +0200 |
| commit | 7731b8bc94e599c9a79e428f3359ff2c34b7576a (patch) | |
| tree | 879f18ccbe274122f2d4f095b43cbc7f953e0ada /arch/mips/kernel/cpu-probe.c | |
| parent | 48e315618dc4dc8904182cd221e3d395d5d97005 (diff) | |
| parent | 9ffc59d57228d74809700be6f7ecb1db10292f05 (diff) | |
Merge branch 'linus' into x86/urgent
Required to queue a dependent fix.
Diffstat (limited to 'arch/mips/kernel/cpu-probe.c')
| -rw-r--r-- | arch/mips/kernel/cpu-probe.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 6b07b739f914..b2509c19cfb5 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -414,6 +414,14 @@ static int __init ftlb_disable(char *s) __setup("noftlb", ftlb_disable); +/* + * Check if the CPU has per tc perf counters + */ +static inline void cpu_set_mt_per_tc_perf(struct cpuinfo_mips *c) +{ + if (read_c0_config7() & MTI_CONF7_PTC) + c->options |= MIPS_CPU_MT_PER_TC_PERF_COUNTERS; +} static inline void check_errata(void) { @@ -1572,6 +1580,7 @@ static inline void cpu_probe_mips(struct cpuinfo_mips *c, unsigned int cpu) c->cputype = CPU_34K; c->writecombine = _CACHE_UNCACHED; __cpu_name[cpu] = "MIPS 34Kc"; + cpu_set_mt_per_tc_perf(c); break; case PRID_IMP_74K: c->cputype = CPU_74K; @@ -1592,6 +1601,7 @@ static inline void cpu_probe_mips(struct cpuinfo_mips *c, unsigned int cpu) c->cputype = CPU_1004K; c->writecombine = _CACHE_UNCACHED; __cpu_name[cpu] = "MIPS 1004Kc"; + cpu_set_mt_per_tc_perf(c); break; case PRID_IMP_1074K: c->cputype = CPU_1074K; @@ -1601,10 +1611,12 @@ static inline void cpu_probe_mips(struct cpuinfo_mips *c, unsigned int cpu) case PRID_IMP_INTERAPTIV_UP: c->cputype = CPU_INTERAPTIV; __cpu_name[cpu] = "MIPS interAptiv"; + cpu_set_mt_per_tc_perf(c); break; case PRID_IMP_INTERAPTIV_MP: c->cputype = CPU_INTERAPTIV; __cpu_name[cpu] = "MIPS interAptiv (multi)"; + cpu_set_mt_per_tc_perf(c); break; case PRID_IMP_PROAPTIV_UP: c->cputype = CPU_PROAPTIV; |