diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_params.c | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_runtime_pm.c | 18 |
2 files changed, 21 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c index ca9b8f644ffe..96bb23865eac 100644 --- a/drivers/gpu/drm/i915/i915_params.c +++ b/drivers/gpu/drm/i915/i915_params.c @@ -38,7 +38,7 @@ struct i915_params i915 __read_mostly = { .enable_ppgtt = -1, .enable_psr = 0, .preliminary_hw_support = IS_ENABLED(CONFIG_DRM_I915_PRELIMINARY_HW_SUPPORT), - .disable_power_well = 1, + .disable_power_well = -1, .enable_ips = 1, .prefault_disable = 0, .load_detect_test = 0, @@ -127,7 +127,8 @@ MODULE_PARM_DESC(preliminary_hw_support, module_param_named_unsafe(disable_power_well, i915.disable_power_well, int, 0600); MODULE_PARM_DESC(disable_power_well, - "Disable the power well when possible (default: true)"); + "Disable display power wells when possible " + "(-1=auto [default], 0=power wells always on, 1=power wells disabled when possible)"); module_param_named_unsafe(enable_ips, i915.enable_ips, int, 0600); MODULE_PARM_DESC(enable_ips, "Enable IPS (default: true)"); diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c index 0cfe4c14866a..1aedf2762dff 100644 --- a/drivers/gpu/drm/i915/intel_runtime_pm.c +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c @@ -1810,6 +1810,21 @@ static struct i915_power_well bxt_power_wells[] = { } }; +static int +sanitize_disable_power_well_option(const struct drm_i915_private *dev_priv, + int disable_power_well) +{ + if (disable_power_well >= 0) + return !!disable_power_well; + + if (IS_SKYLAKE(dev_priv)) { + DRM_DEBUG_KMS("Disabling display power well support\n"); + return 0; + } + + return 1; +} + #define set_power_wells(power_domains, __power_wells) ({ \ (power_domains)->power_wells = (__power_wells); \ (power_domains)->power_well_count = ARRAY_SIZE(__power_wells); \ @@ -1826,6 +1841,9 @@ int intel_power_domains_init(struct drm_i915_private *dev_priv) { struct i915_power_domains *power_domains = &dev_priv->power_domains; + i915.disable_power_well = sanitize_disable_power_well_option(dev_priv, + i915.disable_power_well); + mutex_init(&power_domains->lock); /* |