diff options
Diffstat (limited to 'drivers/powercap')
-rw-r--r-- | drivers/powercap/intel_rapl_common.c | 19 | ||||
-rw-r--r-- | drivers/powercap/intel_rapl_msr.c | 7 |
2 files changed, 22 insertions, 4 deletions
diff --git a/drivers/powercap/intel_rapl_common.c b/drivers/powercap/intel_rapl_common.c index 5ab3feb29686..faa0b6bc5b53 100644 --- a/drivers/powercap/intel_rapl_common.c +++ b/drivers/powercap/intel_rapl_common.c @@ -28,6 +28,7 @@ #include <asm/cpu_device_id.h> #include <asm/intel-family.h> #include <asm/iosf_mbi.h> +#include <asm/msr.h> /* bitmasks for RAPL MSRs, used by primitive access functions */ #define ENERGY_STATUS_MASK 0xffffffff @@ -340,12 +341,28 @@ static int set_domain_enable(struct powercap_zone *power_zone, bool mode) { struct rapl_domain *rd = power_zone_to_rapl_domain(power_zone); struct rapl_defaults *defaults = get_defaults(rd->rp); + u64 val; int ret; cpus_read_lock(); ret = rapl_write_pl_data(rd, POWER_LIMIT1, PL_ENABLE, mode); - if (!ret && defaults->set_floor_freq) + if (ret) + goto end; + + ret = rapl_read_pl_data(rd, POWER_LIMIT1, PL_ENABLE, false, &val); + if (ret) + goto end; + + if (mode != val) { + pr_debug("%s cannot be %s\n", power_zone->name, + str_enabled_disabled(mode)); + goto end; + } + + if (defaults->set_floor_freq) defaults->set_floor_freq(rd, mode); + +end: cpus_read_unlock(); return ret; diff --git a/drivers/powercap/intel_rapl_msr.c b/drivers/powercap/intel_rapl_msr.c index 2b81aabdb0db..8ad2115d65f6 100644 --- a/drivers/powercap/intel_rapl_msr.c +++ b/drivers/powercap/intel_rapl_msr.c @@ -24,6 +24,7 @@ #include <asm/cpu_device_id.h> #include <asm/intel-family.h> +#include <asm/msr.h> /* Local defines */ #define MSR_PLATFORM_POWER_LIMIT 0x0000065C @@ -103,7 +104,7 @@ 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.msr, &ra->value)) { + if (rdmsrq_safe_on_cpu(cpu, ra->reg.msr, &ra->value)) { pr_debug("failed to read msr 0x%x on cpu %d\n", ra->reg.msr, cpu); return -EIO; } @@ -116,14 +117,14 @@ static void rapl_msr_update_func(void *info) struct reg_action *ra = info; u64 val; - ra->err = rdmsrl_safe(ra->reg.msr, &val); + ra->err = rdmsrq_safe(ra->reg.msr, &val); if (ra->err) return; val &= ~ra->mask; val |= ra->value; - ra->err = wrmsrl_safe(ra->reg.msr, val); + ra->err = wrmsrq_safe(ra->reg.msr, val); } static int rapl_msr_write_raw(int cpu, struct reg_action *ra) |