diff options
| author | Zhang Rui <rui.zhang@intel.com> | 2019-07-10 16:44:31 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2019-07-11 16:08:58 +0300 |
| commit | d978e755aabe215cb67bf713e103ed3916ec306d (patch) | |
| tree | 371050d318bd1f1ae3333611e50ebfa5fa4899b3 /drivers/powercap/intel_rapl_msr.c | |
| parent | 3382388d714891fc0f575926189f33d22e7c960b (diff) | |
| download | linux-d978e755aabe215cb67bf713e103ed3916ec306d.tar.xz | |
intel_rapl: support 64 bit register
RAPL MMIO interface uses 64 bit registers, thus force use 64 bit register
for all the RAPL code.
Reviewed-by: Pandruvada, Srinivas <srinivas.pandruvada@intel.com>
Tested-by: Pandruvada, Srinivas <srinivas.pandruvada@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/powercap/intel_rapl_msr.c')
| -rw-r--r-- | drivers/powercap/intel_rapl_msr.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/powercap/intel_rapl_msr.c b/drivers/powercap/intel_rapl_msr.c index 89645222e3e0..6cd8a8fb9238 100644 --- a/drivers/powercap/intel_rapl_msr.c +++ b/drivers/powercap/intel_rapl_msr.c @@ -84,8 +84,10 @@ static int rapl_cpu_down_prep(unsigned int cpu) static int rapl_msr_read_raw(int cpu, struct reg_action *ra) { - if (rdmsrl_safe_on_cpu(cpu, ra->reg, &ra->value)) { - pr_debug("failed to read msr 0x%x on cpu %d\n", ra->reg, cpu); + u32 msr = (u32)ra->reg; + + if (rdmsrl_safe_on_cpu(cpu, msr, &ra->value)) { + pr_debug("failed to read msr 0x%x on cpu %d\n", msr, cpu); return -EIO; } ra->value &= ra->mask; @@ -95,16 +97,17 @@ static int rapl_msr_read_raw(int cpu, struct reg_action *ra) static void rapl_msr_update_func(void *info) { struct reg_action *ra = info; + u32 msr = (u32)ra->reg; u64 val; - ra->err = rdmsrl_safe(ra->reg, &val); + ra->err = rdmsrl_safe(msr, &val); if (ra->err) return; val &= ~ra->mask; val |= ra->value; - ra->err = wrmsrl_safe(ra->reg, val); + ra->err = wrmsrl_safe(msr, val); } static int rapl_msr_write_raw(int cpu, struct reg_action *ra) |