diff options
author | Paul Burton <paul.burton@imgtec.com> | 2017-08-12 19:49:35 -0700 |
---|---|---|
committer | Ralf Baechle <ralf@linux-mips.org> | 2017-08-30 00:57:26 +0200 |
commit | f875a832d2028523f9b53c261b67e05a359bab8b (patch) | |
tree | db7934e092508a34db756e9906738ea4ab50e653 /arch/mips/kernel/cpu-probe.c | |
parent | 15e6529fc337309e699dbb71827362fcd9c616ae (diff) |
MIPS: Abstract CPU core & VP(E) ID access through accessor functions
We currently have fields in struct cpuinfo_mips for the core & VP(E) ID
of a particular CPU, and various pieces of code directly access those
fields. This patch abstracts such access by introducing accessor
functions cpu_core(), cpu_set_core(), cpu_vpe_id() & cpu_set_vpe_id()
and having code that needs to access these values call those functions
rather than directly accessing the struct cpuinfo_mips fields. This
prepares us for changes to the way in which those values are stored in
later patches.
The cpu_vpe_id() function is introduced even though we already had a
cpu_vpe_id() macro for a couple of reasons:
1) It's more consistent with the core, and future cluster, accessors.
2) It ensures a sensible return type without explicit casts.
3) It's generally preferable to use functions rather than macros.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/17009/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/cpu-probe.c')
-rw-r--r-- | arch/mips/kernel/cpu-probe.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index c3ebbdefb0ad..b17b819852b8 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -919,9 +919,12 @@ static void decode_configs(struct cpuinfo_mips *c) #ifndef CONFIG_MIPS_CPS if (cpu_has_mips_r2_r6) { - c->core = get_ebase_cpunum(); + unsigned int core; + + core = get_ebase_cpunum(); if (cpu_has_mipsmt) - c->core >>= fls(core_nvpes()) - 1; + core >>= fls(core_nvpes()) - 1; + cpu_set_core(c, core); } #endif } |