/* * Copyright 2020 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. *
*/ #include"amdgpu.h" #include"amdgpu_psp.h" #include"amdgpu_ucode.h" #include"soc15_common.h" #include"psp_v13_0_4.h"
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, PSP_WAITREG_NOVERBOSE);
/* Check sOS sign of life register to confirm sys driver and sOS * are already been loaded.
*/ if (psp_v13_0_4_is_sos_alive(psp)) return 0;
ret = psp_v13_0_4_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.size_bytes);
/* 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,
PSP_WAITREG_CHANGED);
return ret;
}
staticint psp_v13_0_4_ring_stop(struct psp_context *psp, enum psp_ring_type ring_type)
{ int ret = 0; struct amdgpu_device *adev = psp->adev;
if (amdgpu_sriov_vf(adev)) { /* Write the ring destroy command*/
WREG32_SOC15(MP0, 0, regMP0_SMN_C2PMSG_101,
GFX_CTRL_CMD_ID_DESTROY_GPCOM_RING); /* there might be handshake issue with hardware which needs delay */
mdelay(20); /* Wait for response flag (bit 31) */
ret = psp_wait_for(
psp, SOC15_REG_OFFSET(MP0, 0, regMP0_SMN_C2PMSG_101),
MBOX_TOS_RESP_FLAG, MBOX_TOS_RESP_MASK, 0);
} else { /* Write the ring destroy command*/
WREG32_SOC15(MP0, 0, regMP0_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) */
ret = psp_wait_for(
psp, SOC15_REG_OFFSET(MP0, 0, regMP0_SMN_C2PMSG_64),
MBOX_TOS_RESP_FLAG, MBOX_TOS_RESP_MASK, 0);
}
if (amdgpu_sriov_vf(adev)) {
ret = psp_v13_0_4_ring_stop(psp, ring_type); if (ret) {
DRM_ERROR("psp_v13_0_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, regMP0_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, regMP0_SMN_C2PMSG_103, psp_ring_reg);
/* Write the ring initialization command to C2PMSG_101 */
WREG32_SOC15(MP0, 0, regMP0_SMN_C2PMSG_101,
GFX_CTRL_CMD_ID_INIT_GPCOM_RING);
/* there might be handshake issue with hardware which needs delay */
mdelay(20);
/* Wait for response flag (bit 31) in C2PMSG_101 */
ret = psp_wait_for(
psp, SOC15_REG_OFFSET(MP0, 0, regMP0_SMN_C2PMSG_101),
MBOX_TOS_RESP_FLAG, MBOX_TOS_RESP_MASK, 0);
} else { /* Wait for sOS ready for ring creation */
ret = psp_wait_for(
psp, SOC15_REG_OFFSET(MP0, 0, regMP0_SMN_C2PMSG_64),
MBOX_TOS_READY_FLAG, MBOX_TOS_READY_MASK, 0); if (ret) {
DRM_ERROR("Failed to wait for trust OS ready for ring creation\n"); return ret;
}
/* Write low address of the ring to C2PMSG_69 */
psp_ring_reg = lower_32_bits(ring->ring_mem_mc_addr);
WREG32_SOC15(MP0, 0, regMP0_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, regMP0_SMN_C2PMSG_70, psp_ring_reg); /* Write size of ring to C2PMSG_71 */
psp_ring_reg = ring->ring_size;
WREG32_SOC15(MP0, 0, regMP0_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, regMP0_SMN_C2PMSG_64, psp_ring_reg);
/* there might be handshake issue with hardware which needs delay */
mdelay(20);
/* Wait for response flag (bit 31) in C2PMSG_64 */
ret = psp_wait_for(
psp, SOC15_REG_OFFSET(MP0, 0, regMP0_SMN_C2PMSG_64),
MBOX_TOS_RESP_FLAG, MBOX_TOS_RESP_MASK, 0);
}
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