Gen11 Display suports 32 planes in total. Enable the new format in context
status to be used and expanded to 32 planes.
V2: Move the WA to display WA's(Chris)
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Michel Thierry <michel.thierry@xxxxxxxxx>
Cc: James Ausmus <james.ausmus@xxxxxxxxx>
Reviewed-by: Anusha Srivatsa <anusha.srivatsa@xxxxxxxxx>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_reg.h | 1 +
drivers/gpu/drm/i915/intel_pm.c | 4 ++++
2 files changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index bcee91bcfba6..f76fa13a12a2 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -2537,6 +2537,7 @@ enum i915_power_well_id {
/* chicken reg for WaConextSwitchWithConcurrentTLBInvalidate */
#define GEN9_CSFE_CHICKEN1_RCS _MMIO(0x20D4)
#define GEN9_PREEMPT_GPGPU_SYNC_SWITCH_DISABLE (1 << 2)
+#define GEN11_ENABLE_32_PLANE_MODE (1 << 7)
/* WaClearTdlStateAckDirtyBits */
#define GEN8_STATE_ACK _MMIO(0x20F0)
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 82c82e233154..32d051fd45ee 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -8865,6 +8865,10 @@ static void icl_init_clock_gating(struct drm_i915_private *dev_priv)
/* This is not an Wa. Enable to reduce Sampler power */
I915_WRITE(GEN10_DFR_RATIO_EN_AND_CHICKEN,
I915_READ(GEN10_DFR_RATIO_EN_AND_CHICKEN) & ~DFR_DISABLE);
+
+ /* WaEnable32PlaneMode:icl */
+ I915_WRITE(GEN9_CSFE_CHICKEN1_RCS,
+ _MASKED_BIT_ENABLE(GEN11_ENABLE_32_PLANE_MODE));
}
static void cnp_init_clock_gating(struct drm_i915_private *dev_priv)
--
2.9.3
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