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drm/amdgpu/gfx12: Add Cleaner Shader Support for GFX12.0 GPUs
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This commit enables the cleaner shader feature for GFX12.0 and GFX12.0.1
GPUs. The cleaner shader is important for clearing GPU resources such as
Local Data Share (LDS), Vector General Purpose Registers (VGPRs), and
Scalar General Purpose Registers (SGPRs) between workloads.

- This feature ensures that GPU resources are reset between workloads,
  preventing data leaks and ensuring accurate computation.

By enabling the cleaner shader, this update enhances the security and
reliability of GPU operations on GFX12.0 hardware.

Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Srinivasan Shanmugam authored and Alex Deucher committed Jan 14, 2025
1 parent f2935a3 commit 19b7f7c
Showing 1 changed file with 8 additions and 0 deletions.
8 changes: 8 additions & 0 deletions drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c
Original file line number Diff line number Diff line change
Expand Up @@ -1352,6 +1352,14 @@ static int gfx_v12_0_sw_init(struct amdgpu_ip_block *ip_block)
}

switch (amdgpu_ip_version(adev, GC_HWIP, 0)) {
case IP_VERSION(12, 0, 0):
case IP_VERSION(12, 0, 1):
if (adev->gfx.me_fw_version >= 2480 &&
adev->gfx.pfp_fw_version >= 2530 &&
adev->gfx.mec_fw_version >= 2680 &&
adev->mes.fw_version[0] >= 100)
adev->gfx.enable_cleaner_shader = true;
break;
default:
adev->gfx.enable_cleaner_shader = false;
break;
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