Commit e4b1715a authored Mar 26, 2026 by Srinivasan Shanmugam Committed by Alex Deucher Mar 30, 2026

drm/amdgpu/gfx11: Add Cleaner Shader Support for GFX11.5.4



The Cleaner Shader is responsible for clearing LDS, VGPRs and SGPRs
between GPU workloads to enforce process isolation and avoid data
leakage.

The cleaner shader clears per-wave GPU state (LDS, VGPRs and SGPRs)
between workloads, improving process isolation and preventing stale data
from being observed by subsequent tasks.

This reuses the existing cleaner shader used on GFX11.0.3 and enables it
for GFX11.5.4 GPUs when firmware requirements are met.

Cc: Muhammad Adam <muhammad.adam@amd.com>
Cc: Mario Sopena-Novales <mario.novales@amd.com>
Cc: Tom Wu <Tom.Wu@amd.com>
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>

parent 2fb4883b

drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c

+14 −0

Original line number	Diff line number	Diff line
		@@ -1722,6 +1722,20 @@ static int gfx_v11_0_sw_init(struct amdgpu_ip_block *ip_block)
		}
		}
		break;
		case IP_VERSION(11, 5, 4):
		adev->gfx.cleaner_shader_ptr = gfx_11_0_3_cleaner_shader_hex;
		adev->gfx.cleaner_shader_size = sizeof(gfx_11_0_3_cleaner_shader_hex);
		if (adev->gfx.me_fw_version >= 4 &&
		adev->gfx.pfp_fw_version >= 7 &&
		adev->gfx.mec_fw_version >= 5) {
		adev->gfx.enable_cleaner_shader = true;
		r = amdgpu_gfx_cleaner_shader_sw_init(adev, adev->gfx.cleaner_shader_size);
		if (r) {
		adev->gfx.enable_cleaner_shader = false;
		dev_err(adev->dev, "Failed to initialize cleaner shader\n");
		}
		}
		break;
		default:
		adev->gfx.enable_cleaner_shader = false;
		break;