From: Hawking Zhang <Hawking.Zhang@xxxxxxx>
Add callback function to support key database firmware
loading for psp v13
Signed-off-by: Hawking Zhang <Hawking.Zhang@xxxxxxx>
Reviewed-by: Le Ma <Le.Ma@xxxxxxx>
Reviewed-by: Kevin Wang <kevin1.wang@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/psp_v13_0.c | 70 ++++++++++++++++++++++++++
1 file changed, 70 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c b/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c
index ad0328fc640c..276dc2fdcbfd 100644
--- a/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c
@@ -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)
--
2.29.2
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