diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/iceland_smc.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/iceland_smc.c | 675 |
1 files changed, 675 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/iceland_smc.c b/drivers/gpu/drm/amd/amdgpu/iceland_smc.c new file mode 100644 index 000000000000..c6f1e2f12b5f --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/iceland_smc.c @@ -0,0 +1,675 @@ +/* + * Copyright 2014 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 <linux/firmware.h> +#include "drmP.h" +#include "amdgpu.h" +#include "ppsmc.h" +#include "iceland_smumgr.h" +#include "smu_ucode_xfer_vi.h" +#include "amdgpu_ucode.h" + +#include "smu/smu_7_1_1_d.h" +#include "smu/smu_7_1_1_sh_mask.h" + +#define ICELAND_SMC_SIZE 0x20000 + +static int iceland_set_smc_sram_address(struct amdgpu_device *adev, + uint32_t smc_address, uint32_t limit) +{ + uint32_t val; + + if (smc_address & 3) + return -EINVAL; + + if ((smc_address + 3) > limit) + return -EINVAL; + + WREG32(mmSMC_IND_INDEX_0, smc_address); + + val = RREG32(mmSMC_IND_ACCESS_CNTL); + val = REG_SET_FIELD(val, SMC_IND_ACCESS_CNTL, AUTO_INCREMENT_IND_0, 0); + WREG32(mmSMC_IND_ACCESS_CNTL, val); + + return 0; +} + +static int iceland_copy_bytes_to_smc(struct amdgpu_device *adev, + uint32_t smc_start_address, + const uint8_t *src, + uint32_t byte_count, uint32_t limit) +{ + uint32_t addr; + uint32_t data, orig_data; + int result = 0; + uint32_t extra_shift; + unsigned long flags; + + if (smc_start_address & 3) + return -EINVAL; + + if ((smc_start_address + byte_count) > limit) + return -EINVAL; + + addr = smc_start_address; + + spin_lock_irqsave(&adev->smc_idx_lock, flags); + while (byte_count >= 4) { + /* Bytes are written into the SMC addres space with the MSB first */ + data = (src[0] << 24) + (src[1] << 16) + (src[2] << 8) + src[3]; + + result = iceland_set_smc_sram_address(adev, addr, limit); + + if (result) + goto out; + + WREG32(mmSMC_IND_DATA_0, data); + + src += 4; + byte_count -= 4; + addr += 4; + } + + if (0 != byte_count) { + /* Now write odd bytes left, do a read modify write cycle */ + data = 0; + + result = iceland_set_smc_sram_address(adev, addr, limit); + if (result) + goto out; + + orig_data = RREG32(mmSMC_IND_DATA_0); + extra_shift = 8 * (4 - byte_count); + + while (byte_count > 0) { + data = (data << 8) + *src++; + byte_count--; + } + + data <<= extra_shift; + data |= (orig_data & ~((~0UL) << extra_shift)); + + result = iceland_set_smc_sram_address(adev, addr, limit); + if (result) + goto out; + + WREG32(mmSMC_IND_DATA_0, data); + } + +out: + spin_unlock_irqrestore(&adev->smc_idx_lock, flags); + return result; +} + +void iceland_start_smc(struct amdgpu_device *adev) +{ + uint32_t val = RREG32_SMC(ixSMC_SYSCON_RESET_CNTL); + + val = REG_SET_FIELD(val, SMC_SYSCON_RESET_CNTL, rst_reg, 0); + WREG32_SMC(ixSMC_SYSCON_RESET_CNTL, val); +} + +void iceland_reset_smc(struct amdgpu_device *adev) +{ + uint32_t val = RREG32_SMC(ixSMC_SYSCON_RESET_CNTL); + + val = REG_SET_FIELD(val, SMC_SYSCON_RESET_CNTL, rst_reg, 1); + WREG32_SMC(ixSMC_SYSCON_RESET_CNTL, val); +} + +static int iceland_program_jump_on_start(struct amdgpu_device *adev) +{ + static unsigned char data[] = {0xE0, 0x00, 0x80, 0x40}; + iceland_copy_bytes_to_smc(adev, 0x0, data, 4, sizeof(data)+1); + + return 0; +} + +void iceland_stop_smc_clock(struct amdgpu_device *adev) +{ + uint32_t val = RREG32_SMC(ixSMC_SYSCON_CLOCK_CNTL_0); + + val = REG_SET_FIELD(val, SMC_SYSCON_CLOCK_CNTL_0, ck_disable, 1); + WREG32_SMC(ixSMC_SYSCON_CLOCK_CNTL_0, val); +} + +void iceland_start_smc_clock(struct amdgpu_device *adev) +{ + uint32_t val = RREG32_SMC(ixSMC_SYSCON_CLOCK_CNTL_0); + + val = REG_SET_FIELD(val, SMC_SYSCON_CLOCK_CNTL_0, ck_disable, 0); + WREG32_SMC(ixSMC_SYSCON_CLOCK_CNTL_0, val); +} + +static bool iceland_is_smc_ram_running(struct amdgpu_device *adev) +{ + uint32_t val = RREG32_SMC(ixSMC_SYSCON_CLOCK_CNTL_0); + val = REG_GET_FIELD(val, SMC_SYSCON_CLOCK_CNTL_0, ck_disable); + + return ((0 == val) && (0x20100 <= RREG32_SMC(ixSMC_PC_C))); +} + +static int wait_smu_response(struct amdgpu_device *adev) +{ + int i; + uint32_t val; + + for (i = 0; i < adev->usec_timeout; i++) { + val = RREG32(mmSMC_RESP_0); + if (REG_GET_FIELD(val, SMC_RESP_0, SMC_RESP)) + break; + udelay(1); + } + + if (i == adev->usec_timeout) + return -EINVAL; + + return 0; +} + +static int iceland_send_msg_to_smc(struct amdgpu_device *adev, PPSMC_Msg msg) +{ + if (!iceland_is_smc_ram_running(adev)) + return -EINVAL; + + if (wait_smu_response(adev)) { + DRM_ERROR("Failed to send previous message\n"); + return -EINVAL; + } + + WREG32(mmSMC_MESSAGE_0, msg); + + if (wait_smu_response(adev)) { + DRM_ERROR("Failed to send message\n"); + return -EINVAL; + } + + return 0; +} + +static int iceland_send_msg_to_smc_without_waiting(struct amdgpu_device *adev, + PPSMC_Msg msg) +{ + if (!iceland_is_smc_ram_running(adev)) + return -EINVAL;; + + if (wait_smu_response(adev)) { + DRM_ERROR("Failed to send previous message\n"); + return -EINVAL; + } + + WREG32(mmSMC_MESSAGE_0, msg); + + return 0; +} + +static int iceland_send_msg_to_smc_with_parameter(struct amdgpu_device *adev, + PPSMC_Msg msg, + uint32_t parameter) +{ + WREG32(mmSMC_MSG_ARG_0, parameter); + + return iceland_send_msg_to_smc(adev, msg); +} + +static int iceland_send_msg_to_smc_with_parameter_without_waiting( + struct amdgpu_device *adev, + PPSMC_Msg msg, uint32_t parameter) +{ + WREG32(mmSMC_MSG_ARG_0, parameter); + + return iceland_send_msg_to_smc_without_waiting(adev, msg); +} + +#if 0 /* not used yet */ +static int iceland_wait_for_smc_inactive(struct amdgpu_device *adev) +{ + int i; + uint32_t val; + + if (!iceland_is_smc_ram_running(adev)) + return -EINVAL; + + for (i = 0; i < adev->usec_timeout; i++) { + val = RREG32_SMC(ixSMC_SYSCON_CLOCK_CNTL_0); + if (REG_GET_FIELD(val, SMC_SYSCON_CLOCK_CNTL_0, cken) == 0) + break; + udelay(1); + } + + if (i == adev->usec_timeout) + return -EINVAL; + + return 0; +} +#endif + +static int iceland_smu_upload_firmware_image(struct amdgpu_device *adev) +{ + const struct smc_firmware_header_v1_0 *hdr; + uint32_t ucode_size; + uint32_t ucode_start_address; + const uint8_t *src; + uint32_t val; + uint32_t byte_count; + uint32_t data; + unsigned long flags; + int i; + + if (!adev->pm.fw) + return -EINVAL; + + hdr = (const struct smc_firmware_header_v1_0 *)adev->pm.fw->data; + amdgpu_ucode_print_smc_hdr(&hdr->header); + + adev->pm.fw_version = le32_to_cpu(hdr->header.ucode_version); + ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes); + ucode_start_address = le32_to_cpu(hdr->ucode_start_addr); + src = (const uint8_t *) + (adev->pm.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes)); + + if (ucode_size & 3) { + DRM_ERROR("SMC ucode is not 4 bytes aligned\n"); + return -EINVAL; + } + + if (ucode_size > ICELAND_SMC_SIZE) { + DRM_ERROR("SMC address is beyond the SMC RAM area\n"); + return -EINVAL; + } + + for (i = 0; i < adev->usec_timeout; i++) { + val = RREG32_SMC(ixRCU_UC_EVENTS); + if (REG_GET_FIELD(val, RCU_UC_EVENTS, boot_seq_done) == 0) + break; + udelay(1); + } + val = RREG32_SMC(ixSMC_SYSCON_MISC_CNTL); + WREG32_SMC(ixSMC_SYSCON_MISC_CNTL, val | 1); + + iceland_stop_smc_clock(adev); + iceland_reset_smc(adev); + + spin_lock_irqsave(&adev->smc_idx_lock, flags); + WREG32(mmSMC_IND_INDEX_0, ucode_start_address); + + val = RREG32(mmSMC_IND_ACCESS_CNTL); + val = REG_SET_FIELD(val, SMC_IND_ACCESS_CNTL, AUTO_INCREMENT_IND_0, 1); + WREG32(mmSMC_IND_ACCESS_CNTL, val); + + byte_count = ucode_size; + while (byte_count >= 4) { + data = (src[0] << 24) + (src[1] << 16) + (src[2] << 8) + src[3]; + WREG32(mmSMC_IND_DATA_0, data); + src += 4; + byte_count -= 4; + } + val = RREG32(mmSMC_IND_ACCESS_CNTL); + val = REG_SET_FIELD(val, SMC_IND_ACCESS_CNTL, AUTO_INCREMENT_IND_0, 0); + WREG32(mmSMC_IND_ACCESS_CNTL, val); + spin_unlock_irqrestore(&adev->smc_idx_lock, flags); + + return 0; +} + +#if 0 /* not used yet */ +static int iceland_read_smc_sram_dword(struct amdgpu_device *adev, + uint32_t smc_address, + uint32_t *value, + uint32_t limit) +{ + int result; + unsigned long flags; + + spin_lock_irqsave(&adev->smc_idx_lock, flags); + result = iceland_set_smc_sram_address(adev, smc_address, limit); + if (result == 0) + *value = RREG32(mmSMC_IND_DATA_0); + spin_unlock_irqrestore(&adev->smc_idx_lock, flags); + return result; +} + +static int iceland_write_smc_sram_dword(struct amdgpu_device *adev, + uint32_t smc_address, + uint32_t value, + uint32_t limit) +{ + int result; + unsigned long flags; + + spin_lock_irqsave(&adev->smc_idx_lock, flags); + result = iceland_set_smc_sram_address(adev, smc_address, limit); + if (result == 0) + WREG32(mmSMC_IND_DATA_0, value); + spin_unlock_irqrestore(&adev->smc_idx_lock, flags); + return result; +} + +static int iceland_smu_stop_smc(struct amdgpu_device *adev) +{ + iceland_reset_smc(adev); + iceland_stop_smc_clock(adev); + + return 0; +} +#endif + +static int iceland_smu_start_smc(struct amdgpu_device *adev) +{ + int i; + uint32_t val; + + iceland_program_jump_on_start(adev); + iceland_start_smc_clock(adev); + iceland_start_smc(adev); + + for (i = 0; i < adev->usec_timeout; i++) { + val = RREG32_SMC(ixFIRMWARE_FLAGS); + if (REG_GET_FIELD(val, FIRMWARE_FLAGS, INTERRUPTS_ENABLED) == 1) + break; + udelay(1); + } + return 0; +} + +static enum AMDGPU_UCODE_ID iceland_convert_fw_type(uint32_t fw_type) +{ + switch (fw_type) { + case UCODE_ID_SDMA0: + return AMDGPU_UCODE_ID_SDMA0; + case UCODE_ID_SDMA1: + return AMDGPU_UCODE_ID_SDMA1; + case UCODE_ID_CP_CE: + return AMDGPU_UCODE_ID_CP_CE; + case UCODE_ID_CP_PFP: + return AMDGPU_UCODE_ID_CP_PFP; + case UCODE_ID_CP_ME: + return AMDGPU_UCODE_ID_CP_ME; + case UCODE_ID_CP_MEC: + case UCODE_ID_CP_MEC_JT1: + return AMDGPU_UCODE_ID_CP_MEC1; + case UCODE_ID_CP_MEC_JT2: + return AMDGPU_UCODE_ID_CP_MEC2; + case UCODE_ID_RLC_G: + return AMDGPU_UCODE_ID_RLC_G; + default: + DRM_ERROR("ucode type is out of range!\n"); + return AMDGPU_UCODE_ID_MAXIMUM; + } +} + +static uint32_t iceland_smu_get_mask_for_fw_type(uint32_t fw_type) +{ + switch (fw_type) { + case AMDGPU_UCODE_ID_SDMA0: + return UCODE_ID_SDMA0_MASK; + case AMDGPU_UCODE_ID_SDMA1: + return UCODE_ID_SDMA1_MASK; + case AMDGPU_UCODE_ID_CP_CE: + return UCODE_ID_CP_CE_MASK; + case AMDGPU_UCODE_ID_CP_PFP: + return UCODE_ID_CP_PFP_MASK; + case AMDGPU_UCODE_ID_CP_ME: + return UCODE_ID_CP_ME_MASK; + case AMDGPU_UCODE_ID_CP_MEC1: + return UCODE_ID_CP_MEC_MASK | UCODE_ID_CP_MEC_JT1_MASK | UCODE_ID_CP_MEC_JT2_MASK; + case AMDGPU_UCODE_ID_CP_MEC2: + return UCODE_ID_CP_MEC_MASK; + case AMDGPU_UCODE_ID_RLC_G: + return UCODE_ID_RLC_G_MASK; + default: + DRM_ERROR("ucode type is out of range!\n"); + return 0; + } +} + +static int iceland_smu_populate_single_firmware_entry(struct amdgpu_device *adev, + uint32_t fw_type, + struct SMU_Entry *entry) +{ + enum AMDGPU_UCODE_ID id = iceland_convert_fw_type(fw_type); + struct amdgpu_firmware_info *ucode = &adev->firmware.ucode[id]; + const struct gfx_firmware_header_v1_0 *header = NULL; + uint64_t gpu_addr; + uint32_t data_size; + + if (ucode->fw == NULL) + return -EINVAL; + + gpu_addr = ucode->mc_addr; + header = (const struct gfx_firmware_header_v1_0 *)ucode->fw->data; + data_size = le32_to_cpu(header->header.ucode_size_bytes); + + entry->version = (uint16_t)le32_to_cpu(header->header.ucode_version); + entry->id = (uint16_t)fw_type; + entry->image_addr_high = upper_32_bits(gpu_addr); + entry->image_addr_low = lower_32_bits(gpu_addr); + entry->meta_data_addr_high = 0; + entry->meta_data_addr_low = 0; + entry->data_size_byte = data_size; + entry->num_register_entries = 0; + entry->flags = 0; + + return 0; +} + +static int iceland_smu_request_load_fw(struct amdgpu_device *adev) +{ + struct iceland_smu_private_data *private = (struct iceland_smu_private_data *)adev->smu.priv; + struct SMU_DRAMData_TOC *toc; + uint32_t fw_to_load; + + toc = (struct SMU_DRAMData_TOC *)private->header; + toc->num_entries = 0; + toc->structure_version = 1; + + if (!adev->firmware.smu_load) + return 0; + + if (iceland_smu_populate_single_firmware_entry(adev, UCODE_ID_RLC_G, + &toc->entry[toc->num_entries++])) { + DRM_ERROR("Failed to get firmware entry for RLC\n"); + return -EINVAL; + } + + if (iceland_smu_populate_single_firmware_entry(adev, UCODE_ID_CP_CE, + &toc->entry[toc->num_entries++])) { + DRM_ERROR("Failed to get firmware entry for CE\n"); + return -EINVAL; + } + + if (iceland_smu_populate_single_firmware_entry(adev, UCODE_ID_CP_PFP, + &toc->entry[toc->num_entries++])) { + DRM_ERROR("Failed to get firmware entry for PFP\n"); + return -EINVAL; + } + + if (iceland_smu_populate_single_firmware_entry(adev, UCODE_ID_CP_ME, + &toc->entry[toc->num_entries++])) { + DRM_ERROR("Failed to get firmware entry for ME\n"); + return -EINVAL; + } + + if (iceland_smu_populate_single_firmware_entry(adev, UCODE_ID_CP_MEC, + &toc->entry[toc->num_entries++])) { + DRM_ERROR("Failed to get firmware entry for MEC\n"); + return -EINVAL; + } + + if (iceland_smu_populate_single_firmware_entry(adev, UCODE_ID_CP_MEC_JT1, + &toc->entry[toc->num_entries++])) { + DRM_ERROR("Failed to get firmware entry for MEC_JT1\n"); + return -EINVAL; + } + + if (iceland_smu_populate_single_firmware_entry(adev, UCODE_ID_CP_MEC_JT2, + &toc->entry[toc->num_entries++])) { + DRM_ERROR("Failed to get firmware entry for MEC_JT2\n"); + return -EINVAL; + } + + if (iceland_smu_populate_single_firmware_entry(adev, UCODE_ID_SDMA0, + &toc->entry[toc->num_entries++])) { + DRM_ERROR("Failed to get firmware entry for SDMA0\n"); + return -EINVAL; + } + + if (iceland_smu_populate_single_firmware_entry(adev, UCODE_ID_SDMA1, + &toc->entry[toc->num_entries++])) { + DRM_ERROR("Failed to get firmware entry for SDMA1\n"); + return -EINVAL; + } + + iceland_send_msg_to_smc_with_parameter(adev, PPSMC_MSG_DRV_DRAM_ADDR_HI, private->header_addr_high); + iceland_send_msg_to_smc_with_parameter(adev, PPSMC_MSG_DRV_DRAM_ADDR_LO, private->header_addr_low); + + fw_to_load = UCODE_ID_RLC_G_MASK | + UCODE_ID_SDMA0_MASK | + UCODE_ID_SDMA1_MASK | + UCODE_ID_CP_CE_MASK | + UCODE_ID_CP_ME_MASK | + UCODE_ID_CP_PFP_MASK | + UCODE_ID_CP_MEC_MASK | + UCODE_ID_CP_MEC_JT1_MASK | + UCODE_ID_CP_MEC_JT2_MASK; + + if (iceland_send_msg_to_smc_with_parameter_without_waiting(adev, PPSMC_MSG_LoadUcodes, fw_to_load)) { + DRM_ERROR("Fail to request SMU load ucode\n"); + return -EINVAL; + } + + return 0; +} + +static int iceland_smu_check_fw_load_finish(struct amdgpu_device *adev, + uint32_t fw_type) +{ + uint32_t fw_mask = iceland_smu_get_mask_for_fw_type(fw_type); + int i; + + for (i = 0; i < adev->usec_timeout; i++) { + if (fw_mask == (RREG32_SMC(ixSOFT_REGISTERS_TABLE_27) & fw_mask)) + break; + udelay(1); + } + + if (i == adev->usec_timeout) { + DRM_ERROR("check firmware loading failed\n"); + return -EINVAL; + } + + return 0; +} + +int iceland_smu_start(struct amdgpu_device *adev) +{ + int result; + + result = iceland_smu_upload_firmware_image(adev); + if (result) + return result; + result = iceland_smu_start_smc(adev); + if (result) + return result; + + return iceland_smu_request_load_fw(adev); +} + +static const struct amdgpu_smumgr_funcs iceland_smumgr_funcs = { + .check_fw_load_finish = iceland_smu_check_fw_load_finish, + .request_smu_load_fw = NULL, + .request_smu_specific_fw = NULL, +}; + +int iceland_smu_init(struct amdgpu_device *adev) +{ + struct iceland_smu_private_data *private; + uint32_t image_size = ((sizeof(struct SMU_DRAMData_TOC) / 4096) + 1) * 4096; + struct amdgpu_bo **toc_buf = &adev->smu.toc_buf; + uint64_t mc_addr; + void *toc_buf_ptr; + int ret; + + private = kzalloc(sizeof(struct iceland_smu_private_data), GFP_KERNEL); + if (NULL == private) + return -ENOMEM; + + /* allocate firmware buffers */ + if (adev->firmware.smu_load) + amdgpu_ucode_init_bo(adev); + + adev->smu.priv = private; + adev->smu.fw_flags = 0; + + /* Allocate FW image data structure and header buffer */ + ret = amdgpu_bo_create(adev, image_size, PAGE_SIZE, + true, AMDGPU_GEM_DOMAIN_VRAM, 0, NULL, toc_buf); + if (ret) { + DRM_ERROR("Failed to allocate memory for TOC buffer\n"); + return -ENOMEM; + } + + /* Retrieve GPU address for header buffer and internal buffer */ + ret = amdgpu_bo_reserve(adev->smu.toc_buf, false); + if (ret) { + amdgpu_bo_unref(&adev->smu.toc_buf); + DRM_ERROR("Failed to reserve the TOC buffer\n"); + return -EINVAL; + } + + ret = amdgpu_bo_pin(adev->smu.toc_buf, AMDGPU_GEM_DOMAIN_VRAM, &mc_addr); + if (ret) { + amdgpu_bo_unreserve(adev->smu.toc_buf); + amdgpu_bo_unref(&adev->smu.toc_buf); + DRM_ERROR("Failed to pin the TOC buffer\n"); + return -EINVAL; + } + + ret = amdgpu_bo_kmap(*toc_buf, &toc_buf_ptr); + if (ret) { + amdgpu_bo_unreserve(adev->smu.toc_buf); + amdgpu_bo_unref(&adev->smu.toc_buf); + DRM_ERROR("Failed to map the TOC buffer\n"); + return -EINVAL; + } + + amdgpu_bo_unreserve(adev->smu.toc_buf); + private->header_addr_low = lower_32_bits(mc_addr); + private->header_addr_high = upper_32_bits(mc_addr); + private->header = toc_buf_ptr; + + adev->smu.smumgr_funcs = &iceland_smumgr_funcs; + + return 0; +} + +int iceland_smu_fini(struct amdgpu_device *adev) +{ + amdgpu_bo_unref(&adev->smu.toc_buf); + kfree(adev->smu.priv); + adev->smu.priv = NULL; + if (adev->firmware.fw_buf) + amdgpu_ucode_fini_bo(adev); + + return 0; +} |