[PATCH 0/6] Avoid re-parser CSB in gfx_vX_0_cp_gfx_start()

[Rodrigo Siqueira]

In the functions gfx_vX_0_cp_gfx_start(), where X ranges from 7 to 11,
parts of the code parser CSB. However, CSB was already parsed in the
get_csb_buffer() called before gfx_vX_0_cp_gfx_start(). This commit
introduces a helper to read directly from the CSB buffer available in
adev->gfx.rlc.cs_ptr, and avoid re-parse CSB.

Note: This series idea came from a discussion available in the below
link:

https://lore.kernel.org/amd-gfx/CADnq5_NAGvaJ1-7+_NZQszLspHcCudRSKKHkezJBEQg0GmEq9Q@mail.gmail.com/T/#m8fd6d9ce10b9644299f2f306f2a7d00a9aa1e5ee

Thanks

Rodrigo Siqueira (6):
  drm/amd/amdgpu: Add a helper to copy the CSB buffer into the ring
    buffer
  drm/amd/amdgpu: Avoid re-parser CSB in gfx_v7_0_cp_gfx_start
  drm/amd/amdgpu: Avoid re-parser CSB in gfx_v8_0_cp_gfx_start
  drm/amd/amdgpu: Avoid re-parser CSB in gfx_v9_0_cp_gfx_start
  drm/amd/amdgpu: Avoid re-parser CSB in gfx_v10_0_cp_gfx_start
  drm/amd/amdgpu: Avoid re-parser CSB in gfx_v11_0_cp_gfx_start

 drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | 21 +++++++++++++++++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h |  4 ++++
 drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c  | 23 +++++------------------
 drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c  | 23 +++++------------------
 drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c   | 20 +++++---------------
 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c   | 22 +++++-----------------
 drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c   | 23 ++++++-----------------
 7 files changed, 51 insertions(+), 85 deletions(-)

-- 
2.47.2