iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/amdgpu: add kdb loading support for psp v13

Browse Source 
Add callback function to support key database firmware
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>
This commit is contained in:
Hawking Zhang 2020-10-16 15:50:16 +08:00 committed by Alex Deucher
parent 742d3c61ac
commit 133d888da9
1 changed files with 70 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

70
drivers/gpu/drm/amd/amdgpu/psp_v13_0.c
View File

@ -26,6 +26,9 @@
#include "soc15_common.h"
#include "psp_v13_0.h"
#include "mp/mp_13_0_2_offset.h"
#include "mp/mp_13_0_2_sh_mask.h"
MODULE_FIRMWARE("amdgpu/aldebaran_sos.bin");
static int psp_v13_0_init_microcode(struct psp_context *psp)
@ -47,8 +50,75 @@ static int psp_v13_0_init_microcode(struct psp_context *psp)
return err;
}
static bool psp_v13_0_is_sos_alive(struct psp_context *psp)
{
struct amdgpu_device *adev = psp->adev;
uint32_t sol_reg;
sol_reg = RREG32_SOC15(MP0, 0, regMP0_SMN_C2PMSG_81);
return sol_reg != 0x0;
}
static int psp_v13_0_wait_for_bootloader(struct psp_context *psp)
{
struct amdgpu_device *adev = psp->adev;
int ret;
int retry_loop;
for (retry_loop = 0; retry_loop < 10; retry_loop++) {
/* 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, regMP0_SMN_C2PMSG_35),
0x80000000,
0x80000000,
false);
if (ret == 0)
return 0;
}
return ret;
}
static int psp_v13_0_bootloader_load_kdb(struct psp_context *psp)
{
int ret;
uint32_t psp_gfxdrv_command_reg = 0;
struct amdgpu_device *adev = psp->adev;
/* Check tOS 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 PSP KDB binary to memory */
memcpy(psp->fw_pri_buf, psp->kdb_start_addr, psp->kdb_bin_size);
/* Provide the PSP KDB 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_KEY_DATABASE;
WREG32_SOC15(MP0, 0, regMP0_SMN_C2PMSG_35,
psp_gfxdrv_command_reg);
ret = psp_v13_0_wait_for_bootloader(psp);
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,
};
void psp_v13_0_set_psp_funcs(struct psp_context *psp)