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authorSagar Arun Kamble <sagar.a.kamble@intel.com>2015-09-30 19:57:37 +0300
committerDaniel Vetter <daniel.vetter@ffwll.ch>2015-10-01 19:12:17 +0300
commit9d91a1bfae7d12eb2c91006dc977d9bac9000a30 (patch)
treef6a79cf8de1bc2bdc23070355a8fb88645d26a43 /drivers
parent923c124107840d58c5002cc19734310743501811 (diff)
downloadlinux-9d91a1bfae7d12eb2c91006dc977d9bac9000a30.tar.xz
drm/i915/guc: Don't forward flip interrupts to GuC
Due to flip interrupts GuC stays awake always and GT does not enter RC6. Do not route those interrupts to GuC for now. Driver won't touch DE_GUCRMR register and leave it as what default value. Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@intel.com> Signed-off-by: Alex Dai <yu.dai@intel.com> Reviewed-by: Tom O'Rourke <Tom.O'Rourke@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/i915/intel_guc_loader.c10
1 files changed, 0 insertions, 10 deletions
diff --git a/drivers/gpu/drm/i915/intel_guc_loader.c b/drivers/gpu/drm/i915/intel_guc_loader.c
index 5d17b63c107c..f87d833aa5ca 100644
--- a/drivers/gpu/drm/i915/intel_guc_loader.c
+++ b/drivers/gpu/drm/i915/intel_guc_loader.c
@@ -90,9 +90,6 @@ static void direct_interrupts_to_host(struct drm_i915_private *dev_priv)
for_each_ring(ring, dev_priv, i)
I915_WRITE(RING_MODE_GEN7(ring), irqs);
- /* tell DE to send nothing to GuC */
- I915_WRITE(DE_GUCRMR, ~0);
-
/* route all GT interrupts to the host */
I915_WRITE(GUC_BCS_RCS_IER, 0);
I915_WRITE(GUC_VCS2_VCS1_IER, 0);
@@ -110,13 +107,6 @@ static void direct_interrupts_to_guc(struct drm_i915_private *dev_priv)
for_each_ring(ring, dev_priv, i)
I915_WRITE(RING_MODE_GEN7(ring), irqs);
- /* tell DE to send (all) flip_done to GuC */
- irqs = DERRMR_PIPEA_PRI_FLIP_DONE | DERRMR_PIPEA_SPR_FLIP_DONE |
- DERRMR_PIPEB_PRI_FLIP_DONE | DERRMR_PIPEB_SPR_FLIP_DONE |
- DERRMR_PIPEC_PRI_FLIP_DONE | DERRMR_PIPEC_SPR_FLIP_DONE;
- /* Unmasked bits will cause GuC response message to be sent */
- I915_WRITE(DE_GUCRMR, ~irqs);
-
/* route USER_INTERRUPT to Host, all others are sent to GuC. */
irqs = GT_RENDER_USER_INTERRUPT << GEN8_RCS_IRQ_SHIFT |
GT_RENDER_USER_INTERRUPT << GEN8_BCS_IRQ_SHIFT;