Looks good to me.
Reviewed-by: Alex Dai <yu.dai@xxxxxxxxx>
On 09/11/2015 09:47 PM, Sagar Arun Kamble wrote:
Cc: Alex Dai <yu.dai@xxxxxxxxx>
Cc: Tom O'Rourke <Tom.O'Rourke@xxxxxxxxx>
Cc: Akash Goel <akash.goel@xxxxxxxxx>
Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_guc_reg.h | 1 +
drivers/gpu/drm/i915/intel_pm.c | 4 ++++
2 files changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_guc_reg.h b/drivers/gpu/drm/i915/i915_guc_reg.h
index 8c8e574..9d79a6b 100644
--- a/drivers/gpu/drm/i915/i915_guc_reg.h
+++ b/drivers/gpu/drm/i915/i915_guc_reg.h
@@ -53,6 +53,7 @@
#define START_DMA (1<<0)
#define DMA_GUC_WOPCM_OFFSET 0xc340
#define GUC_WOPCM_OFFSET_VALUE 0x80000 /* 512KB */
+#define GUC_MAX_IDLE_COUNT 0xC3E4
#define GUC_WOPCM_SIZE 0xc050
#define GUC_WOPCM_SIZE_VALUE (0x80 << 12) /* 512KB */
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 4d6bb6b..6843a48 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4841,6 +4841,10 @@ static void gen9_enable_rc6(struct drm_device *dev)
I915_WRITE(GEN6_RC_IDLE_HYSTERSIS, 25); /* 25 * 1280ns */
for_each_ring(ring, dev_priv, unused)
I915_WRITE(RING_MAX_IDLE(ring->mmio_base), 10);
+
+ if (HAS_GUC_UCODE(dev))
+ I915_WRITE(GUC_MAX_IDLE_COUNT, 0xA);
+
I915_WRITE(GEN6_RC_SLEEP, 0);
I915_WRITE(GEN6_RC6_THRESHOLD, 37500); /* 37.5/125ms per EI */
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