/* Check sOS sign of life register to confirm sys driver and sOS *arealreadybeenloaded.
*/
sol_reg = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81); if (sol_reg) return0;
/* 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), 0x80000000, 0x80000000, 0); if (ret) return ret;
/* Copy PSP System Driver binary to memory */
psp_copy_fw(psp, psp->sys.start_addr, psp->sys.size_bytes);
/* Provide the sys driver to bootloader */
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36,
(uint32_t)(psp->fw_pri_mc_addr >> 20));
psp_gfxdrv_command_reg = PSP_BL__LOAD_SYSDRV;
WREG32_SOC15(MP0, 0, mmMP0_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, mmMP0_SMN_C2PMSG_35), 0x80000000, 0x80000000, 0);
/* Check sOS sign of life register to confirm sys driver and sOS *arealreadybeenloaded.
*/
sol_reg = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81); if (sol_reg) return0;
/* 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), 0x80000000, 0x80000000, 0); if (ret) return ret;
/* Copy Secure OS binary to PSP memory */
psp_copy_fw(psp, psp->sos.start_addr, psp->sos.size_bytes);
/* Provide the PSP secure OS to bootloader */
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36,
(uint32_t)(psp->fw_pri_mc_addr >> 20));
psp_gfxdrv_command_reg = PSP_BL__LOAD_SOSDRV;
WREG32_SOC15(MP0, 0, mmMP0_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, mmMP0_SMN_C2PMSG_81),
RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81), 0,
PSP_WAITREG_CHANGED); return ret;
}
if (amdgpu_sriov_vf(adev)) {
ring->ring_wptr = 0;
ret = psp_v3_1_ring_stop(psp, ring_type); if (ret) {
DRM_ERROR("psp_v3_1_ring_stop_sriov failed!\n"); return ret;
}
/* Write low address of the ring to C2PMSG_102 */
psp_ring_reg = lower_32_bits(ring->ring_mem_mc_addr);
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_102, psp_ring_reg); /* Write high address of the ring to C2PMSG_103 */
psp_ring_reg = upper_32_bits(ring->ring_mem_mc_addr);
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_103, psp_ring_reg); /* No size initialization for sriov */ /* Write the ring initialization command to C2PMSG_101 */
psp_ring_reg = ring_type;
psp_ring_reg = psp_ring_reg << 16;
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_101, psp_ring_reg);
/* there might be hardware handshake issue which needs delay */
mdelay(20);
/* Wait for response flag (bit 31) in C2PMSG_101 */
ret = psp_wait_for(
psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_101), 0x80000000, 0x8000FFFF, 0);
} else {
/* Write low address of the ring to C2PMSG_69 */
psp_ring_reg = lower_32_bits(ring->ring_mem_mc_addr);
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_69, psp_ring_reg); /* Write high address of the ring to C2PMSG_70 */
psp_ring_reg = upper_32_bits(ring->ring_mem_mc_addr);
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_70, psp_ring_reg); /* Write size of ring to C2PMSG_71 */
psp_ring_reg = ring->ring_size;
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_71, psp_ring_reg); /* Write the ring initialization command to C2PMSG_64 */
psp_ring_reg = ring_type;
psp_ring_reg = psp_ring_reg << 16;
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64, psp_ring_reg);
/* there might be hardware handshake issue which needs delay */
mdelay(20);
/* Wait for response flag (bit 31) in C2PMSG_64 */
ret = psp_wait_for(
psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64), 0x80000000, 0x8000FFFF, 0);
} return ret;
}
staticint psp_v3_1_ring_stop(struct psp_context *psp, enum psp_ring_type ring_type)
{ int ret = 0; struct amdgpu_device *adev = psp->adev;
/* Write the ring destroy command*/ if (amdgpu_sriov_vf(adev))
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_101,
GFX_CTRL_CMD_ID_DESTROY_GPCOM_RING); else
WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64,
GFX_CTRL_CMD_ID_DESTROY_RINGS);
/* there might be handshake issue with hardware which needs delay */
mdelay(20);
/* Wait for response flag (bit 31) */ if (amdgpu_sriov_vf(adev))
ret = psp_wait_for(
psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_101), 0x80000000, 0x80000000, 0); else
ret = psp_wait_for(
psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64), 0x80000000, 0x80000000, 0);
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