diff options
| author | Zhang Rui <rui.zhang@intel.com> | 2019-07-10 21:44:29 +0800 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2019-07-11 15:08:57 +0200 |
| commit | 1193b1658d16f03cdb2edbac5f2a796ccca225af (patch) | |
| tree | 55b46e943bee466905aad3fab1a434bddae686d1 /drivers | |
| parent | 8a00676cd690941c9a18bd390c3b2cade631c516 (diff) | |
| download | linux-next-1193b1658d16f03cdb2edbac5f2a796ccca225af.tar.gz | |
intel_rapl: cleanup hardcoded MSR access
There are still some places in the common code that have hardcoded
MSR access, convert them to follow the abstracted register access.
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')
| -rw-r--r-- | drivers/powercap/intel_rapl.c | 38 |
1 files changed, 22 insertions, 16 deletions
diff --git a/drivers/powercap/intel_rapl.c b/drivers/powercap/intel_rapl.c index 7a97d331bcdc..aa54c06ed518 100644 --- a/drivers/powercap/intel_rapl.c +++ b/drivers/powercap/intel_rapl.c @@ -767,22 +767,24 @@ static int rapl_write_data_raw(struct rapl_domain *rd, */ static int rapl_check_unit_core(struct rapl_package *rp, int cpu) { - u64 msr_val; + struct reg_action ra; u32 value; - if (rdmsrl_safe_on_cpu(cpu, rp->priv->reg_unit, &msr_val)) { - pr_err("Failed to read power unit MSR 0x%x on CPU %d, exit.\n", + ra.reg = rp->priv->reg_unit; + ra.mask = ~0; + if (rp->priv->read_raw(cpu, &ra)) { + pr_err("Failed to read power unit REG 0x%x on CPU %d, exit.\n", rp->priv->reg_unit, cpu); return -ENODEV; } - value = (msr_val & ENERGY_UNIT_MASK) >> ENERGY_UNIT_OFFSET; + value = (ra.value & ENERGY_UNIT_MASK) >> ENERGY_UNIT_OFFSET; rp->energy_unit = ENERGY_UNIT_SCALE * 1000000 / (1 << value); - value = (msr_val & POWER_UNIT_MASK) >> POWER_UNIT_OFFSET; + value = (ra.value & POWER_UNIT_MASK) >> POWER_UNIT_OFFSET; rp->power_unit = 1000000 / (1 << value); - value = (msr_val & TIME_UNIT_MASK) >> TIME_UNIT_OFFSET; + value = (ra.value & TIME_UNIT_MASK) >> TIME_UNIT_OFFSET; rp->time_unit = 1000000 / (1 << value); pr_debug("Core CPU %s energy=%dpJ, time=%dus, power=%duW\n", @@ -793,21 +795,24 @@ static int rapl_check_unit_core(struct rapl_package *rp, int cpu) static int rapl_check_unit_atom(struct rapl_package *rp, int cpu) { - u64 msr_val; + struct reg_action ra; u32 value; - if (rdmsrl_safe_on_cpu(cpu, rp->priv->reg_unit, &msr_val)) { - pr_err("Failed to read power unit MSR 0x%x on CPU %d, exit.\n", + ra.reg = rp->priv->reg_unit; + ra.mask = ~0; + if (rp->priv->read_raw(cpu, &ra)) { + pr_err("Failed to read power unit REG 0x%x on CPU %d, exit.\n", rp->priv->reg_unit, cpu); return -ENODEV; } - value = (msr_val & ENERGY_UNIT_MASK) >> ENERGY_UNIT_OFFSET; + + value = (ra.value & ENERGY_UNIT_MASK) >> ENERGY_UNIT_OFFSET; rp->energy_unit = ENERGY_UNIT_SCALE * 1 << value; - value = (msr_val & POWER_UNIT_MASK) >> POWER_UNIT_OFFSET; + value = (ra.value & POWER_UNIT_MASK) >> POWER_UNIT_OFFSET; rp->power_unit = (1 << value) * 1000; - value = (msr_val & TIME_UNIT_MASK) >> TIME_UNIT_OFFSET; + value = (ra.value & TIME_UNIT_MASK) >> TIME_UNIT_OFFSET; rp->time_unit = 1000000 / (1 << value); pr_debug("Atom %s energy=%dpJ, time=%dus, power=%duW\n", @@ -1180,15 +1185,14 @@ static void rapl_remove_platform_domain(struct rapl_if_priv *priv) static int rapl_check_domain(int cpu, int domain, struct rapl_package *rp) { - u32 reg; - u64 val = 0; + struct reg_action ra; switch (domain) { case RAPL_DOMAIN_PACKAGE: case RAPL_DOMAIN_PP0: case RAPL_DOMAIN_PP1: case RAPL_DOMAIN_DRAM: - reg = rp->priv->regs[domain][RAPL_DOMAIN_REG_STATUS]; + ra.reg = rp->priv->regs[domain][RAPL_DOMAIN_REG_STATUS]; break; case RAPL_DOMAIN_PLATFORM: /* PSYS(PLATFORM) is not a CPU domain, so avoid printng error */ @@ -1200,7 +1204,9 @@ static int rapl_check_domain(int cpu, int domain, struct rapl_package *rp) /* make sure domain counters are available and contains non-zero * values, otherwise skip it. */ - if (rdmsrl_safe_on_cpu(cpu, reg, &val) || !val) + + ra.mask = ~0; + if (rp->priv->read_raw(cpu, &ra) || !ra.value) return -ENODEV; return 0; |