From: Oscar Mateo <oscar.mateo@xxxxxxxxx>
This is mostly for correctness so that we know we are running the LR
context correctly (this is, the PDPs are contained inside the context
object).
Signed-off-by: Oscar Mateo <oscar.mateo@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_gem_gtt.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index a0993c0..de4a982 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -240,11 +240,15 @@ static int gen8_mm_switch(struct i915_hw_ppgtt *ppgtt,
struct intel_engine *ring,
bool synchronous)
{
+ struct drm_i915_private *dev_priv = ring->dev->dev_private;
int i, ret;
/* bit of a hack to find the actual last used pd */
int used_pd = ppgtt->num_pd_entries / GEN8_PDES_PER_PAGE;
+ if (dev_priv->lrc_enabled)
+ return 0;
+
for (i = used_pd - 1; i >= 0; i--) {
dma_addr_t addr = ppgtt->pd_dma_addr[i];
ret = gen8_write_pdp(ring, i, addr, synchronous);
--
1.9.0
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