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

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 99808926d0ea6234a89e35240a7cb088368de9e1)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index d377a7c57d5e13c23edcd0aaef0959760da94339..ad9be3656653bbb195358c2ddc5fcf6bc20d54b8 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -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);