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drm/amdgpu: Add PSP fw version check for fw reserve GFX command

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The fw reserved GFX command is only supported starting from PSP fw
version 0x3a0e14 and 0x3b0e0d. Older versions do not support this command.

Add a version guard to ensure the command is only used when the running
PSP fw meets the minimum version requirement.

This ensures backward compatibility and safe operation across fw
revisions.

Fixes: a3b7f9c306 ("drm/amdgpu: reclaim psp fw reservation memory region")
Signed-off-by: Frank Min <Frank.Min@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Frank Min 2025-08-05 22:30:54 +08:00 committed by Alex Deucher
parent d543489aa1
commit 065e23170a
1 changed files with 16 additions and 3 deletions
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19
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
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@ -1043,15 +1043,28 @@ int psp_update_fw_reservation(struct psp_context *psp)
{
int ret;
uint64_t reserv_addr, reserv_addr_ext;
uint32_t reserv_size, reserv_size_ext;
uint32_t reserv_size, reserv_size_ext, mp0_ip_ver;
struct amdgpu_device *adev = psp->adev;
mp0_ip_ver = amdgpu_ip_version(adev, MP0_HWIP, 0);
if (amdgpu_sriov_vf(psp->adev))
return 0;
if ((amdgpu_ip_version(adev, MP0_HWIP, 0) != IP_VERSION(14, 0, 2)) &&
(amdgpu_ip_version(adev, MP0_HWIP, 0) != IP_VERSION(14, 0, 3)))
switch (mp0_ip_ver) {
case IP_VERSION(14, 0, 2):
if (adev->psp.sos.fw_version < 0x3b0e0d)
return 0;
break;
case IP_VERSION(14, 0, 3):
if (adev->psp.sos.fw_version < 0x3a0e14)
return 0;
break;
default:
return 0;
}
ret = psp_get_fw_reservation_info(psp, GFX_CMD_ID_FB_FW_RESERV_ADDR, &reserv_addr, &reserv_size);
if (ret)