diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2014-01-22 21:32:43 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-01-27 17:16:45 +0100 |
| commit | 2b7e8082b258eebcff49acff040a9110ed6f2c09 (patch) | |
| tree | 424ff7295e68f61519220f483231fed972d93e38 | |
| parent | e81ca8076832ed2197a6bdb05dbc769dad159f7d (diff) | |
drm/i915: We implement WaMiSetContext_Hang
WaMiSetContext_Hang tells us that a MI_NOOP must follow MI_SET_CONTEXT.
The other thing WaMiSetContext_Hang seems to say is that URB_FENCE isn't
allowed to straddle two cachelines. But we don't issue those from the
kernel so we don't care.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_context.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c index f37ae104c08e..fb64ab4a2068 100644 --- a/drivers/gpu/drm/i915/i915_gem_context.c +++ b/drivers/gpu/drm/i915/i915_gem_context.c @@ -577,7 +577,10 @@ mi_set_context(struct intel_ring_buffer *ring, MI_SAVE_EXT_STATE_EN | MI_RESTORE_EXT_STATE_EN | hw_flags); - /* w/a: MI_SET_CONTEXT must always be followed by MI_NOOP */ + /* + * w/a: MI_SET_CONTEXT must always be followed by MI_NOOP + * WaMiSetContext_Hang:snb,ivb,vlv + */ intel_ring_emit(ring, MI_NOOP); if (IS_GEN7(ring->dev)) |