@@ -36,6 +36,7 @@ struct i915_params i915 __read_mostly = {
.enable_dc = -1,
.enable_fbc = -1,
.enable_execlists = -1,
+ .enable_slpc = 0,
.enable_hangcheck = true,
.enable_ppgtt = -1,
.enable_psr = -1,
@@ -146,6 +147,11 @@ struct i915_params i915 __read_mostly = {
"Override execlists usage. "
"(-1=auto [default], 0=disabled, 1=enabled)");
+module_param_named_unsafe(enable_slpc, i915.enable_slpc, int, 0400);
+MODULE_PARM_DESC(enable_slpc,
+ "Override single-loop-power-controller (slpc) usage. "
+ "(-1=auto, 0=disabled [default], 1=enabled)");
+
module_param_named_unsafe(enable_psr, i915.enable_psr, int, 0600);
MODULE_PARM_DESC(enable_psr, "Enable PSR "
"(0=disabled, 1=enabled - link mode chosen per-platform, 2=force link-standby mode, 3=force link-off mode) "
@@ -41,6 +41,7 @@
func(int, enable_ppgtt); \
func(int, enable_execlists); \
func(int, enable_psr); \
+ func(int, enable_slpc); \
func(int, disable_power_well); \
func(int, enable_ips); \
func(int, invert_brightness); \
@@ -68,6 +68,7 @@ void intel_uc_sanitize_options(struct drm_i915_private *dev_priv)
i915.enable_guc_loading = 0;
i915.enable_guc_submission = 0;
+ i915.enable_slpc = 0;
return;
}
@@ -91,6 +92,18 @@ void intel_uc_sanitize_options(struct drm_i915_private *dev_priv)
/* A negative value means "use platform default" */
if (i915.enable_guc_submission < 0)
i915.enable_guc_submission = HAS_GUC_SCHED(dev_priv);
+
+ /* slpc requires hardware support and compatible firmware */
+ if (!HAS_SLPC(dev_priv))
+ i915.enable_slpc = 0;
+
+ /* slpc requires guc loaded */
+ if (!i915.enable_guc_loading)
+ i915.enable_slpc = 0;
+
+ /* slpc requires guc submission */
+ if (!i915.enable_guc_submission)
+ i915.enable_slpc = 0;
}
void intel_uc_init_early(struct drm_i915_private *dev_priv)