diff options
| author | Matt Redfearn <[email protected]> | 2018-04-20 11:23:04 +0100 |
|---|---|---|
| committer | James Hogan <[email protected]> | 2018-05-15 15:16:16 +0100 |
| commit | 800fb71281ca2ed5c8a7299e10ebc0de2f61cdda (patch) | |
| tree | f0ac8f30ad775d4cc2000b75a08240a637828f81 /arch/mips/include | |
| parent | 8270ab48e67333f760b3bef507c1524c7a06c699 (diff) | |
MIPS: perf: More robustly probe for the presence of per-tc counters
The presence of per TC performance counters is now detected by
cpu-probe.c and indicated by MIPS_CPU_MT_PER_TC_PERF_COUNTERS in
cpu_data. Switch detection of the feature to use this new flag rather
than blindly testing the implementation specific config7 register with a
magic number.
Signed-off-by: Matt Redfearn <[email protected]>
Cc: Ralf Baechle <[email protected]>
Cc: Florian Fainelli <[email protected]>
Cc: Maciej W. Rozycki <[email protected]>
Cc: Paul Burton <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Robert Richter <[email protected]>
Cc: [email protected]
Cc: [email protected]
Patchwork: https://patchwork.linux-mips.org/patch/19142/
Signed-off-by: James Hogan <[email protected]>
Diffstat (limited to 'arch/mips/include')
| -rw-r--r-- | arch/mips/include/asm/cpu-features.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h index 5f74590e0bea..9cdb4e4ce258 100644 --- a/arch/mips/include/asm/cpu-features.h +++ b/arch/mips/include/asm/cpu-features.h @@ -535,6 +535,13 @@ # define cpu_has_shared_ftlb_entries 0 #endif +#ifdef CONFIG_MIPS_MT_SMP +# define cpu_has_mipsmt_pertccounters \ + (cpu_data[0].options & MIPS_CPU_MT_PER_TC_PERF_COUNTERS) +#else +# define cpu_has_mipsmt_pertccounters 0 +#endif /* CONFIG_MIPS_MT_SMP */ + /* * Guest capabilities */ |