diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c index d7784650e4d9..1154cd2b7c34 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_sysfs_pm.c @@ -464,6 +464,45 @@ static ssize_t slpc_ignore_eff_freq_store(struct kobject *kobj, return err ?: count; } +static ssize_t slpc_power_profile_show(struct kobject *kobj, + struct kobj_attribute *attr, + char *buff) +{ + struct intel_gt *gt = intel_gt_sysfs_get_drvdata(kobj, attr->attr.name); + struct intel_guc_slpc *slpc = >->uc.guc.slpc; + + switch (slpc->power_profile) { + case SLPC_POWER_PROFILES_BASE: + return sysfs_emit(buff, "[%s] %s\n", "base", "power_saving"); + case SLPC_POWER_PROFILES_POWER_SAVING: + return sysfs_emit(buff, "%s [%s]\n", "base", "power_saving"); + } + + return sysfs_emit(buff, "%u\n", slpc->power_profile); +} + +static ssize_t slpc_power_profile_store(struct kobject *kobj, + struct kobj_attribute *attr, + const char *buff, size_t count) +{ + struct intel_gt *gt = intel_gt_sysfs_get_drvdata(kobj, attr->attr.name); + struct intel_guc_slpc *slpc = >->uc.guc.slpc; + char power_saving[] = "power_saving"; + char base[] = "base"; + int err; + u32 val; + + if (!strncmp(buff, power_saving, sizeof(power_saving) - 1)) + val = SLPC_POWER_PROFILES_POWER_SAVING; + else if (!strncmp(buff, base, sizeof(base) - 1)) + val = SLPC_POWER_PROFILES_BASE; + else + return -EINVAL; + + err = intel_guc_slpc_set_power_profile(slpc, val); + return err ?: count; +} + struct intel_gt_bool_throttle_attr { struct attribute attr; ssize_t (*show)(struct kobject *kobj, struct kobj_attribute *attr, @@ -668,6 +707,7 @@ INTEL_GT_ATTR_RO(media_RP0_freq_mhz); INTEL_GT_ATTR_RO(media_RPn_freq_mhz); INTEL_GT_ATTR_RW(slpc_ignore_eff_freq); +INTEL_GT_ATTR_RW(slpc_power_profile); static const struct attribute *media_perf_power_attrs[] = { &attr_media_freq_factor.attr, @@ -864,6 +904,13 @@ void intel_gt_sysfs_pm_init(struct intel_gt *gt, struct kobject *kobj) gt_warn(gt, "failed to create ignore_eff_freq sysfs (%pe)", ERR_PTR(ret)); } + if (intel_uc_uses_guc_slpc(>->uc)) { + ret = sysfs_create_file(kobj, &attr_slpc_power_profile.attr); + if (ret) + gt_warn(gt, "failed to create slpc_power_profile sysfs (%pe)", + ERR_PTR(ret)); + } + if (i915_mmio_reg_valid(intel_gt_perf_limit_reasons_reg(gt))) { ret = sysfs_create_files(kobj, throttle_reason_attrs); if (ret) |