From: Zhang Rui <rui.zhang@intel.com> mainline inclusion from mainline-v5.3-rc1 commit 1193b1658d16f03cdb2edbac5f2a796ccca225af category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I47H3V CVE: NA -------------------------------- commit 1193b1658d16f03cdb2edbac5f2a796ccca225af upstream. 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> Signed-off-by: Youquan Song <youquan.song@intel.com> Signed-off-by: Jackie Liu <liuyun01@kylinos.cn> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> Reviewed-by: Hanjun Guo <guohanjun@huawei.com> Reviewed-by: Xie XiuQi <xiexiuqi@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> --- drivers/powercap/intel_rapl.c | 38 ++++++++++++++++++++--------------- 1 file changed, 22 insertions(+), 16 deletions(-) diff --git a/drivers/powercap/intel_rapl.c b/drivers/powercap/intel_rapl.c index 357ea9657ce15..b5cad6f9518d6 100644 --- a/drivers/powercap/intel_rapl.c +++ b/drivers/powercap/intel_rapl.c @@ -779,22 +779,24 @@ 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", @@ -805,21 +807,24 @@ 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", @@ -1197,15 +1202,14 @@ 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 */ @@ -1217,7 +1221,9 @@ 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; -- 2.25.1