In Indirect and Per context w/a batch buffer,
+WaDisableCtxRestoreArbitration
Signed-off-by: Rafael Barbalho <rafael.barba...@intel.com>
Signed-off-by: Arun Siluvery <arun.siluv...@linux.intel.com>
---
drivers/gpu/drm/i915/intel_lrc.c | 18 ++++++++----------
1 file changed, 8 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 1d31eb5..8d5932a 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -1110,10 +1110,11 @@ static int gen8_init_indirectctx_bb(struct
intel_engine_cs *ring,
index = offset;
- /* FIXME: fill one cacheline with NOOPs.
- * Replace these instructions with WA
- */
- while (index < (offset + 16))
+ /* WaDisableCtxRestoreArbitration:bdw,chv */
+ wa_ctx_emit(batch, MI_ARB_ON_OFF | MI_ARB_DISABLE);
+
+ /* padding */
+ while (((unsigned long) (batch + index) % CACHELINE_BYTES) != 0)
wa_ctx_emit(batch, MI_NOOP);
/*
@@ -1143,13 +1144,10 @@ static int gen8_init_perctx_bb(struct intel_engine_cs
*ring,
index = offset;
- /* FIXME: fill one cacheline with NOOPs.
- * Replace these instructions with WA
- */
- while (index < (offset + 16))
- wa_ctx_emit(batch, MI_NOOP);
+ /* WaDisableCtxRestoreArbitration:bdw,chv */
+ wa_ctx_emit(batch, MI_ARB_ON_OFF | MI_ARB_ENABLE);
- batch[index - 1] = MI_BATCH_BUFFER_END;
+ wa_ctx_emit(batch, MI_BATCH_BUFFER_END);
*num_dwords = index - offset;
--
2.3.0
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