From: José Roberto de Souza <jose.souza@xxxxxxxxx>
Adding a new hook to ADL-P just to avoid another platform check in
gen12lp_init_clock_gating() but also open to it.
BSpec: 54369
Cc: Matt Roper <matthew.d.roper@xxxxxxxxx>
Cc: Anusha Srivatsa <anusha.srivatsa@xxxxxxxxx>
Signed-off-by: José Roberto de Souza <jose.souza@xxxxxxxxx>
Signed-off-by: Clinton Taylor <Clinton.A.Taylor@xxxxxxxxx>
Signed-off-by: Matt Roper <matthew.d.roper@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_reg.h | 3 +++
drivers/gpu/drm/i915/intel_pm.c | 12 +++++++++++-
2 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 4c356fa9055f..6fd126b64727 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -4185,6 +4185,9 @@ enum {
#define GEN9_CLKGATE_DIS_4 _MMIO(0x4653C)
#define BXT_GMBUS_GATING_DIS (1 << 14)
+#define GEN9_CLKGATE_DIS_5 _MMIO(0x46540)
+#define DPCE_GATING_DIS REG_BIT(17)
+
#define _CLKGATE_DIS_PSL_A 0x46520
#define _CLKGATE_DIS_PSL_B 0x46524
#define _CLKGATE_DIS_PSL_C 0x46528
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 36da17e1aa3c..013a5aef4c29 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -7370,6 +7370,14 @@ static void gen12lp_init_clock_gating(struct drm_i915_private *dev_priv)
CLKREQ_POLICY_MEM_UP_OVRD, 0);
}
+static void adlp_init_clock_gating(struct drm_i915_private *dev_priv)
+{
+ gen12lp_init_clock_gating(dev_priv);
+
+ /* Wa_22011091694:adlp */
+ intel_de_rmw(dev_priv, GEN9_CLKGATE_DIS_5, 0, DPCE_GATING_DIS);
+}
+
static void dg1_init_clock_gating(struct drm_i915_private *dev_priv)
{
gen12lp_init_clock_gating(dev_priv);
@@ -7847,7 +7855,9 @@ static void nop_init_clock_gating(struct drm_i915_private *dev_priv)
*/
void intel_init_clock_gating_hooks(struct drm_i915_private *dev_priv)
{
- if (IS_DG1(dev_priv))
+ if (IS_ALDERLAKE_P(dev_priv))
+ dev_priv->display.init_clock_gating = adlp_init_clock_gating;
+ else if (IS_DG1(dev_priv))
dev_priv->display.init_clock_gating = dg1_init_clock_gating;
else if (IS_GEN(dev_priv, 12))
dev_priv->display.init_clock_gating = gen12lp_init_clock_gating;
--
2.25.4
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