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| author | Arun Siluvery <arun.siluvery@linux.intel.com> | 2015-06-19 18:37:12 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-06-23 14:01:41 +0200 |
| commit | 7ad00d1ac12bf461d0f0b69bf4e0e883b9e23c53 (patch) | |
| tree | 44a91a5816378eb7b4285d999ece11d92004a441 /drivers/gpu/drm/i915/intel_lrc.c | |
| parent | c4db7599194248214b343d1ef1a1bc53d6cff187 (diff) | |
| download | lwn-7ad00d1ac12bf461d0f0b69bf4e0e883b9e23c53.tar.gz lwn-7ad00d1ac12bf461d0f0b69bf4e0e883b9e23c53.zip | |
drm/i915/gen8: Add WaDisableCtxRestoreArbitration workaround
In Indirect and Per context w/a batch buffer,
+WaDisableCtxRestoreArbitration
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Dave Gordon <david.s.gordon@intel.com>
Signed-off-by: Rafael Barbalho <rafael.barbalho@intel.com>
Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_lrc.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_lrc.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index f83d97ea4028..a1198baf34aa 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -1140,8 +1140,8 @@ static int gen8_init_indirectctx_bb(struct intel_engine_cs *ring, { uint32_t index = wa_ctx_start(wa_ctx, *offset, CACHELINE_DWORDS); - /* FIXME: Replace me with WA */ - wa_ctx_emit(batch, MI_NOOP); + /* WaDisableCtxRestoreArbitration:bdw,chv */ + wa_ctx_emit(batch, MI_ARB_ON_OFF | MI_ARB_DISABLE); /* Pad to end of cacheline */ while (index % CACHELINE_DWORDS) @@ -1179,6 +1179,9 @@ static int gen8_init_perctx_bb(struct intel_engine_cs *ring, { uint32_t index = wa_ctx_start(wa_ctx, *offset, CACHELINE_DWORDS); + /* WaDisableCtxRestoreArbitration:bdw,chv */ + wa_ctx_emit(batch, MI_ARB_ON_OFF | MI_ARB_ENABLE); + wa_ctx_emit(batch, MI_BATCH_BUFFER_END); return wa_ctx_end(wa_ctx, *offset = index, 1); |