diff options
| author | Hawking Zhang <Hawking.Zhang@amd.com> | 2020-04-13 06:11:41 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-03-24 05:52:10 +0300 |
| commit | f117535590210280fdcd6e4e7979e26796868447 (patch) | |
| tree | 9b1fec73f58cd92ef4ab98a3c3833f5619c4cfb7 /drivers/gpu/drm/amd/amdgpu/psp_v13_0.c | |
| parent | ea6eaf558326487584fabf6f133ed0652017f342 (diff) | |
| download | linux-f117535590210280fdcd6e4e7979e26796868447.tar.xz | |
drm/amdgpu: add tOS loading support for psp v13
Add callback function to support trusted os
loading for psp v13
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Le Ma <Le.Ma@amd.com>
Reviewed-by: Kevin Wang <kevin1.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/psp_v13_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/psp_v13_0.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c b/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c index a76fa572258a..6bdea3f35f3d 100644 --- a/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c +++ b/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c @@ -152,10 +152,48 @@ static int psp_v13_0_bootloader_load_sysdrv(struct psp_context *psp) return ret; } +static int psp_v13_0_bootloader_load_sos(struct psp_context *psp) +{ + int ret; + unsigned int psp_gfxdrv_command_reg = 0; + struct amdgpu_device *adev = psp->adev; + + /* Check sOS sign of life register to confirm sys driver and sOS + * are already been loaded. + */ + if (psp_v13_0_is_sos_alive(psp)) + return 0; + + ret = psp_v13_0_wait_for_bootloader(psp); + if (ret) + return ret; + + memset(psp->fw_pri_buf, 0, PSP_1_MEG); + + /* Copy Secure OS binary to PSP memory */ + memcpy(psp->fw_pri_buf, psp->sos_start_addr, psp->sos_bin_size); + + /* Provide the PSP secure OS to bootloader */ + WREG32_SOC15(MP0, 0, regMP0_SMN_C2PMSG_36, + (uint32_t)(psp->fw_pri_mc_addr >> 20)); + psp_gfxdrv_command_reg = PSP_BL__LOAD_SOSDRV; + WREG32_SOC15(MP0, 0, regMP0_SMN_C2PMSG_35, + psp_gfxdrv_command_reg); + + /* there might be handshake issue with hardware which needs delay */ + mdelay(20); + ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, regMP0_SMN_C2PMSG_81), + RREG32_SOC15(MP0, 0, regMP0_SMN_C2PMSG_81), + 0, true); + + return ret; +} + static const struct psp_funcs psp_v13_0_funcs = { .init_microcode = psp_v13_0_init_microcode, .bootloader_load_kdb = psp_v13_0_bootloader_load_kdb, .bootloader_load_sysdrv = psp_v13_0_bootloader_load_sysdrv, + .bootloader_load_sos = psp_v13_0_bootloader_load_sos, }; void psp_v13_0_set_psp_funcs(struct psp_context *psp) |