this fix DOTA and other exclusive & full screen game textrue blank bug, the root cause is that when no ctx switch between two DMAframe, CE go too faster and step to the next DMAframe, thus DE and CE are not working on the same DAMframe.
Change-Id: I92714a1d434bb05e94220a2db9b4a6113b0c2efc Signed-off-by: Monk Liu <[email protected]> --- drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c index 4127e7c..efce228 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c @@ -129,6 +129,7 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs, unsigned i; int r = 0; + unsigned extra_nop = 0; if (num_ibs == 0) return -EINVAL; @@ -155,6 +156,11 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs, alloc_size = amdgpu_ring_get_dma_frame_size(ring) + num_ibs * amdgpu_ring_get_emit_ib_size(ring); + if (!job->vm_needs_flush && ring->type == AMDGPU_RING_TYPE_GFX) { + extra_nop = 128; + alloc_size += extra_nop; + } + r = amdgpu_ring_alloc(ring, alloc_size); if (r) { dev_err(adev->dev, "scheduling IB failed (%d).\n", r); @@ -165,6 +171,9 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs, patch_offset = amdgpu_ring_init_cond_exec(ring); if (vm) { + if (extra_nop) + amdgpu_ring_insert_nop(ring, 128); /* prevent CE go too fast than DE */ + r = amdgpu_vm_flush(ring, job); if (r) { amdgpu_ring_undo(ring); -- 1.9.1 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
