[PATCH 0/2] fix dma frame of GFX8

[Monk Liu]

original SWITCH_BUFFER scheme for GFX8 doesn't support virtualization, and
it give worse performance, now we use the classic scheme to support 
virtualization and gain more performance by only inserting one SWITCH_BUFFER
at the bottom of each command submit, and doing this requires 128dw NOP inserted
after VM flush as well to prevent CE trigger vm fault before De vm_flush done.

now 256 dw for each command submit is enough.

Monk Liu (2):
  drm/amdgpu:fix gfx ib schedule
  drm/amdgpu:256dw is enough for one ib_schedule

 drivers/gpu/drm/amd/amdgpu/amdgpu.h    |  2 ++
 drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c | 10 +++++++++-
 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c  | 28 +++++++++++++---------------
 3 files changed, 24 insertions(+), 16 deletions(-)

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1.9.1