drm/amdgpu: validate and share PSP fw_pri_buf copies via psp_copy_fw

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Change psp_copy_fw from void to int: return -ENODEV when drm_dev_enter
fails, and -EINVAL when the image size is zero or larger than the
1 MiB PSP private buffer.

Replace open-coded memset/memcpy into fw_pri_buf with psp_copy_fw.

Signed-off-by: Candice Li <candice.li@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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This commit is contained in:

Candice Li 2026-05-13 18:13:30 +08:00 • committed by Alex Deucher

parent 2206e6c76d

commit d1f9f5839b

8 changed files with 62 additions and 38 deletions

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32

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

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2

drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h

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8

drivers/gpu/drm/amd/amdgpu/psp_v11_0.c

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8

drivers/gpu/drm/amd/amdgpu/psp_v12_0.c

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drivers/gpu/drm/amd/amdgpu/psp_v13_0.c

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drivers/gpu/drm/amd/amdgpu/psp_v13_0_4.c

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14

drivers/gpu/drm/amd/amdgpu/psp_v14_0.c

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drivers/gpu/drm/amd/amdgpu/psp_v3_1.c

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