diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/psp_v13_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/psp_v13_0.c | 378 |
1 files changed, 378 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c b/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c new file mode 100644 index 000000000000..fcdce46445d6 --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/psp_v13_0.c @@ -0,0 +1,378 @@ +/* + * 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.h" + +#include "mp/mp_13_0_2_offset.h" +#include "mp/mp_13_0_2_sh_mask.h" + +MODULE_FIRMWARE("amdgpu/aldebaran_sos.bin"); +MODULE_FIRMWARE("amdgpu/aldebaran_ta.bin"); + +static int psp_v13_0_init_microcode(struct psp_context *psp) +{ + struct amdgpu_device *adev = psp->adev; + const char *chip_name; + int err = 0; + + switch (adev->asic_type) { + case CHIP_ALDEBARAN: + chip_name = "aldebaran"; + break; + default: + BUG(); + } + + err = psp_init_sos_microcode(psp, chip_name); + if (err) + return err; + + err = psp_init_ta_microcode(&adev->psp, chip_name); + + 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 int psp_v13_0_bootloader_load_sysdrv(struct psp_context *psp) +{ + int ret; + uint32_t psp_gfxdrv_command_reg = 0; + struct amdgpu_device *adev = psp->adev; + + /* Check sOS 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 System Driver binary to memory */ + memcpy(psp->fw_pri_buf, psp->sys_start_addr, psp->sys_bin_size); + + /* Provide the sys driver 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_SYSDRV; + 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_v13_0_wait_for_bootloader(psp); + + return ret; +} + +static int psp_v13_0_bootloader_load_sos(struct psp_context *psp) +{ + int ret; + unsigned int psp_gfxdrv_command_reg = 0; + struct amdgpu_device *adev = psp->adev; + + /* Check sOS 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 Secure OS binary to PSP memory */ + memcpy(psp->fw_pri_buf, psp->sos_start_addr, psp->sos_bin_size); + + /* 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, true); + + return ret; +} + +static int psp_v13_0_ring_init(struct psp_context *psp, + enum psp_ring_type ring_type) +{ + int ret = 0; + struct psp_ring *ring; + struct amdgpu_device *adev = psp->adev; + + ring = &psp->km_ring; + + ring->ring_type = ring_type; + + /* allocate 4k Page of Local Frame Buffer memory for ring */ + ring->ring_size = 0x1000; + ret = amdgpu_bo_create_kernel(adev, ring->ring_size, PAGE_SIZE, + AMDGPU_GEM_DOMAIN_VRAM, + &adev->firmware.rbuf, + &ring->ring_mem_mc_addr, + (void **)&ring->ring_mem); + if (ret) { + ring->ring_size = 0; + return ret; + } + + return 0; +} + +static int psp_v13_0_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), + 0x80000000, 0x80000000, false); + } 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), + 0x80000000, 0x80000000, false); + } + + return ret; +} + +static int psp_v13_0_ring_create(struct psp_context *psp, + enum psp_ring_type ring_type) +{ + int ret = 0; + unsigned int psp_ring_reg = 0; + struct psp_ring *ring = &psp->km_ring; + struct amdgpu_device *adev = psp->adev; + + if (amdgpu_sriov_vf(adev)) { + ret = psp_v13_0_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), + 0x80000000, 0x8000FFFF, false); + + } else { + /* Wait for sOS ready for ring creation */ + ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, regMP0_SMN_C2PMSG_64), + 0x80000000, 0x80000000, false); + 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), + 0x80000000, 0x8000FFFF, false); + } + + return ret; +} + +static int psp_v13_0_ring_destroy(struct psp_context *psp, + enum psp_ring_type ring_type) +{ + int ret = 0; + struct psp_ring *ring = &psp->km_ring; + struct amdgpu_device *adev = psp->adev; + + ret = psp_v13_0_ring_stop(psp, ring_type); + if (ret) + DRM_ERROR("Fail to stop psp ring\n"); + + amdgpu_bo_free_kernel(&adev->firmware.rbuf, + &ring->ring_mem_mc_addr, + (void **)&ring->ring_mem); + + return ret; +} + +static uint32_t psp_v13_0_ring_get_wptr(struct psp_context *psp) +{ + uint32_t data; + struct amdgpu_device *adev = psp->adev; + + if (amdgpu_sriov_vf(adev)) + data = RREG32_SOC15(MP0, 0, regMP0_SMN_C2PMSG_102); + else + data = RREG32_SOC15(MP0, 0, regMP0_SMN_C2PMSG_67); + + return data; +} + +static void psp_v13_0_ring_set_wptr(struct psp_context *psp, uint32_t value) +{ + struct amdgpu_device *adev = psp->adev; + + if (amdgpu_sriov_vf(adev)) { + WREG32_SOC15(MP0, 0, regMP0_SMN_C2PMSG_102, value); + WREG32_SOC15(MP0, 0, regMP0_SMN_C2PMSG_101, + GFX_CTRL_CMD_ID_CONSUME_CMD); + } else + WREG32_SOC15(MP0, 0, regMP0_SMN_C2PMSG_67, value); +} + +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, + .bootloader_load_sysdrv = psp_v13_0_bootloader_load_sysdrv, + .bootloader_load_sos = psp_v13_0_bootloader_load_sos, + .ring_init = psp_v13_0_ring_init, + .ring_create = psp_v13_0_ring_create, + .ring_stop = psp_v13_0_ring_stop, + .ring_destroy = psp_v13_0_ring_destroy, + .ring_get_wptr = psp_v13_0_ring_get_wptr, + .ring_set_wptr = psp_v13_0_ring_set_wptr, +}; + +void psp_v13_0_set_psp_funcs(struct psp_context *psp) +{ + psp->funcs = &psp_v13_0_funcs; +} |