Commit 133d888d authored by Hawking Zhang's avatar Hawking Zhang Committed by Alex Deucher
Browse files

drm/amdgpu: add kdb loading support for psp v13 



Add callback function to support key database firmware
loading for psp v13

Signed-off-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: default avatarLe Ma <Le.Ma@amd.com>
Reviewed-by: default avatarKevin Wang <kevin1.wang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 742d3c61

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

+70 −0
Original line number Diff line number Diff line
@@ -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)