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drm/amdgpu/gfx9: Add Cleaner Shader Support for GFX9.x GPUs

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Enable the cleaner shader for other GFX9.x series of GPUs to provide
data isolation between GPU workloads. The cleaner shader is responsible
for clearing the Local Data Store (LDS), Vector General Purpose
Registers (VGPRs), and Scalar General Purpose Registers (SGPRs), which
helps prevent data leakage and ensures accurate computation results.

This update extends cleaner shader support to GFX9.x GPUs, previously
available for GFX9.4.2. It enhances security by clearing GPU memory
between processes and maintains a consistent GPU state across KGD and
KFD workloads.

Cc: Manu Rastogi <manu.rastogi@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>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 99808926d0)
This commit is contained in:
Srinivasan Shanmugam
2025-06-12 20:11:14 +05:30
committed by Alex Deucher
parent 86731a2a65
commit 0043ec26d8
1 changed files with 19 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+19
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@@ -2235,6 +2235,25 @@ static int gfx_v9_0_sw_init(struct amdgpu_ip_block *ip_block)
}
switch (amdgpu_ip_version(adev, GC_HWIP, 0)) {
case IP_VERSION(9, 0, 1):
case IP_VERSION(9, 2, 1):
case IP_VERSION(9, 4, 0):
case IP_VERSION(9, 2, 2):
case IP_VERSION(9, 1, 0):
case IP_VERSION(9, 3, 0):
adev->gfx.cleaner_shader_ptr = gfx_9_4_2_cleaner_shader_hex;
adev->gfx.cleaner_shader_size = sizeof(gfx_9_4_2_cleaner_shader_hex);
if (adev->gfx.me_fw_version >= 167 &&
adev->gfx.pfp_fw_version >= 196 &&
adev->gfx.mec_fw_version >= 474) {
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;
case IP_VERSION(9, 4, 2):
adev->gfx.cleaner_shader_ptr = gfx_9_4_2_cleaner_shader_hex;
adev->gfx.cleaner_shader_size = sizeof(gfx_9_4_2_cleaner_shader_hex);