diff options
| author | Jesse Barnes <jbarnes@virtuousgeek.org> | 2012-10-26 20:42:42 +0400 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-11-12 02:51:36 +0400 |
| commit | 9a28977181724ebbd9bdc45291cf29da55a729ee (patch) | |
| tree | d83f779436fcaab0b445c64ee50252269ba6b211 /drivers/gpu/drm/i915/intel_ringbuffer.c | |
| parent | 12f3382bc0262e981a2e58aca900cbbdbbe66825 (diff) | |
| download | linux-9a28977181724ebbd9bdc45291cf29da55a729ee.tar.xz | |
drm/i915: TLB invalidation with MI_FLUSH_DW requires a post-sync op v3
So store into the scratch space of the HWS to make sure the invalidate
occurs.
v2: use GTT address space for store, clean up #defines (Chris)
v3: use correct #define in blt ring flush (Chris)
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Antti Koskipää <antti.koskipaa@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
References: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1063252
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index b13393b593b8..1591955044c8 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -1395,10 +1395,17 @@ static int gen6_ring_flush(struct intel_ring_buffer *ring, return ret; cmd = MI_FLUSH_DW; + /* + * Bspec vol 1c.5 - video engine command streamer: + * "If ENABLED, all TLBs will be invalidated once the flush + * operation is complete. This bit is only valid when the + * Post-Sync Operation field is a value of 1h or 3h." + */ if (invalidate & I915_GEM_GPU_DOMAINS) - cmd |= MI_INVALIDATE_TLB | MI_INVALIDATE_BSD; + cmd |= MI_INVALIDATE_TLB | MI_INVALIDATE_BSD | + MI_FLUSH_DW_STORE_INDEX | MI_FLUSH_DW_OP_STOREDW; intel_ring_emit(ring, cmd); - intel_ring_emit(ring, 0); + intel_ring_emit(ring, I915_GEM_HWS_SCRATCH_ADDR | MI_FLUSH_DW_USE_GTT); intel_ring_emit(ring, 0); intel_ring_emit(ring, MI_NOOP); intel_ring_advance(ring); @@ -1460,10 +1467,17 @@ static int blt_ring_flush(struct intel_ring_buffer *ring, return ret; cmd = MI_FLUSH_DW; + /* + * Bspec vol 1c.3 - blitter engine command streamer: + * "If ENABLED, all TLBs will be invalidated once the flush + * operation is complete. This bit is only valid when the + * Post-Sync Operation field is a value of 1h or 3h." + */ if (invalidate & I915_GEM_DOMAIN_RENDER) - cmd |= MI_INVALIDATE_TLB; + cmd |= MI_INVALIDATE_TLB | MI_FLUSH_DW_STORE_INDEX | + MI_FLUSH_DW_OP_STOREDW | MI_FLUSH_DW_OP_STOREDW; intel_ring_emit(ring, cmd); - intel_ring_emit(ring, 0); + intel_ring_emit(ring, I915_GEM_HWS_SCRATCH_ADDR | MI_FLUSH_DW_USE_GTT); intel_ring_emit(ring, 0); intel_ring_emit(ring, MI_NOOP); intel_ring_advance(ring); |