drm/amdgpu/psp: Get psp fw version through reading register

If PSP FW is running already, driver will not load PSP FW again and skip
it. So psp fw version is not correct if reading it from FW binary file,
need to get right version from register.

Signed-off-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v11_0.c b/drivers/gpu/drm/amd/amdgpu/psp_v11_0.c
index 2b19616..8e5e1d6 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/psp_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/psp_v11_0.c
@@ -171,8 +171,10 @@ static int psp_v11_0_bootloader_load_sysdrv(struct psp_context *psp)
         * are already been loaded.
         */
        sol_reg = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81);
-       if (sol_reg)
+       if (sol_reg) {
+               psp->sos_fw_version = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_58);
                return 0;
+       }
 
        /* Wait for bootloader to signify that is ready having bit 31 of C2PMSG_35 set to 1 */
        ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_35),