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Release 4.15 drivers/gpu/drm/amd/powerplay/smumgr/rv_smumgr.c

/*
 * Copyright 2016 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 "smumgr.h"
#include "rv_inc.h"
#include "pp_soc15.h"
#include "rv_smumgr.h"
#include "ppatomctrl.h"
#include "rv_ppsmc.h"
#include "smu10_driver_if.h"
#include "smu10.h"
#include "ppatomctrl.h"
#include "pp_debug.h"
#include "smu_ucode_xfer_vi.h"
#include "smu7_smumgr.h"


#define VOLTAGE_SCALE 4


#define BUFFER_SIZE                 80000

#define MAX_STRING_SIZE             15

#define BUFFER_SIZETWO              131072


#define MP0_Public                  0x03800000

#define MP0_SRAM                    0x03900000

#define MP1_Public                  0x03b00000

#define MP1_SRAM                    0x03c00004


#define smnMP1_FIRMWARE_FLAGS       0x3010028



bool rv_is_smc_ram_running(struct pp_hwmgr *hwmgr) { uint32_t mp1_fw_flags, reg; reg = soc15_get_register_offset(NBIF_HWID, 0, mmPCIE_INDEX2_BASE_IDX, mmPCIE_INDEX2); cgs_write_register(hwmgr->device, reg, (MP1_Public | (smnMP1_FIRMWARE_FLAGS & 0xffffffff))); reg = soc15_get_register_offset(NBIF_HWID, 0, mmPCIE_DATA2_BASE_IDX, mmPCIE_DATA2); mp1_fw_flags = cgs_read_register(hwmgr->device, reg); if (mp1_fw_flags & MP1_FIRMWARE_FLAGS__INTERRUPTS_ENABLED_MASK) return true; return false; }

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static uint32_t rv_wait_for_response(struct pp_hwmgr *hwmgr) { uint32_t reg; if (!rv_is_smc_ram_running(hwmgr)) return -EINVAL; reg = soc15_get_register_offset(MP1_HWID, 0, mmMP1_SMN_C2PMSG_90_BASE_IDX, mmMP1_SMN_C2PMSG_90); phm_wait_for_register_unequal(hwmgr, reg, 0, MP1_C2PMSG_90__CONTENT_MASK); return cgs_read_register(hwmgr->device, reg); }

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int rv_send_msg_to_smc_without_waiting(struct pp_hwmgr *hwmgr, uint16_t msg) { uint32_t reg; if (!rv_is_smc_ram_running(hwmgr)) return -EINVAL; reg = soc15_get_register_offset(MP1_HWID, 0, mmMP1_SMN_C2PMSG_66_BASE_IDX, mmMP1_SMN_C2PMSG_66); cgs_write_register(hwmgr->device, reg, msg); return 0; }

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int rv_read_arg_from_smc(struct pp_hwmgr *hwmgr, uint32_t *arg) { uint32_t reg; reg = soc15_get_register_offset(MP1_HWID, 0, mmMP1_SMN_C2PMSG_82_BASE_IDX, mmMP1_SMN_C2PMSG_82); *arg = cgs_read_register(hwmgr->device, reg); return 0; }

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int rv_send_msg_to_smc(struct pp_hwmgr *hwmgr, uint16_t msg) { uint32_t reg; rv_wait_for_response(hwmgr); reg = soc15_get_register_offset(MP1_HWID, 0, mmMP1_SMN_C2PMSG_90_BASE_IDX, mmMP1_SMN_C2PMSG_90); cgs_write_register(hwmgr->device, reg, 0); rv_send_msg_to_smc_without_waiting(hwmgr, msg); if (rv_wait_for_response(hwmgr) == 0) printk("Failed to send Message %x.\n", msg); return 0; }

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int rv_send_msg_to_smc_with_parameter(struct pp_hwmgr *hwmgr, uint16_t msg, uint32_t parameter) { uint32_t reg; rv_wait_for_response(hwmgr); reg = soc15_get_register_offset(MP1_HWID, 0, mmMP1_SMN_C2PMSG_90_BASE_IDX, mmMP1_SMN_C2PMSG_90); cgs_write_register(hwmgr->device, reg, 0); reg = soc15_get_register_offset(MP1_HWID, 0, mmMP1_SMN_C2PMSG_82_BASE_IDX, mmMP1_SMN_C2PMSG_82); cgs_write_register(hwmgr->device, reg, parameter); rv_send_msg_to_smc_without_waiting(hwmgr, msg); if (rv_wait_for_response(hwmgr) == 0) printk("Failed to send Message %x.\n", msg); return 0; }

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int rv_copy_table_from_smc(struct pp_hwmgr *hwmgr, uint8_t *table, int16_t table_id) { struct rv_smumgr *priv = (struct rv_smumgr *)(hwmgr->smu_backend); PP_ASSERT_WITH_CODE(table_id < MAX_SMU_TABLE, "Invalid SMU Table ID!", return -EINVAL;); PP_ASSERT_WITH_CODE(priv->smu_tables.entry[table_id].version != 0, "Invalid SMU Table version!", return -EINVAL;); PP_ASSERT_WITH_CODE(priv->smu_tables.entry[table_id].size != 0, "Invalid SMU Table Length!", return -EINVAL;); PP_ASSERT_WITH_CODE(rv_send_msg_to_smc_with_parameter(hwmgr, PPSMC_MSG_SetDriverDramAddrHigh, priv->smu_tables.entry[table_id].table_addr_high) == 0, "[CopyTableFromSMC] Attempt to Set Dram Addr High Failed!", return -EINVAL;); PP_ASSERT_WITH_CODE(rv_send_msg_to_smc_with_parameter(hwmgr, PPSMC_MSG_SetDriverDramAddrLow, priv->smu_tables.entry[table_id].table_addr_low) == 0, "[CopyTableFromSMC] Attempt to Set Dram Addr Low Failed!", return -EINVAL;); PP_ASSERT_WITH_CODE(rv_send_msg_to_smc_with_parameter(hwmgr, PPSMC_MSG_TransferTableSmu2Dram, priv->smu_tables.entry[table_id].table_id) == 0, "[CopyTableFromSMC] Attempt to Transfer Table From SMU Failed!", return -EINVAL;); memcpy(table, priv->smu_tables.entry[table_id].table, priv->smu_tables.entry[table_id].size); return 0; }

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int rv_copy_table_to_smc(struct pp_hwmgr *hwmgr, uint8_t *table, int16_t table_id) { struct rv_smumgr *priv = (struct rv_smumgr *)(hwmgr->smu_backend); PP_ASSERT_WITH_CODE(table_id < MAX_SMU_TABLE, "Invalid SMU Table ID!", return -EINVAL;); PP_ASSERT_WITH_CODE(priv->smu_tables.entry[table_id].version != 0, "Invalid SMU Table version!", return -EINVAL;); PP_ASSERT_WITH_CODE(priv->smu_tables.entry[table_id].size != 0, "Invalid SMU Table Length!", return -EINVAL;); memcpy(priv->smu_tables.entry[table_id].table, table, priv->smu_tables.entry[table_id].size); PP_ASSERT_WITH_CODE(rv_send_msg_to_smc_with_parameter(hwmgr, PPSMC_MSG_SetDriverDramAddrHigh, priv->smu_tables.entry[table_id].table_addr_high) == 0, "[CopyTableToSMC] Attempt to Set Dram Addr High Failed!", return -EINVAL;); PP_ASSERT_WITH_CODE(rv_send_msg_to_smc_with_parameter(hwmgr, PPSMC_MSG_SetDriverDramAddrLow, priv->smu_tables.entry[table_id].table_addr_low) == 0, "[CopyTableToSMC] Attempt to Set Dram Addr Low Failed!", return -EINVAL;); PP_ASSERT_WITH_CODE(rv_send_msg_to_smc_with_parameter(hwmgr, PPSMC_MSG_TransferTableDram2Smu, priv->smu_tables.entry[table_id].table_id) == 0, "[CopyTableToSMC] Attempt to Transfer Table To SMU Failed!", return -EINVAL;); return 0; }

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static int rv_verify_smc_interface(struct pp_hwmgr *hwmgr) { uint32_t smc_driver_if_version; PP_ASSERT_WITH_CODE(!rv_send_msg_to_smc(hwmgr, PPSMC_MSG_GetDriverIfVersion), "Attempt to get SMC IF Version Number Failed!", return -EINVAL); PP_ASSERT_WITH_CODE(!rv_read_arg_from_smc(hwmgr, &smc_driver_if_version), "Attempt to read SMC IF Version Number Failed!", return -EINVAL); if (smc_driver_if_version != SMU10_DRIVER_IF_VERSION) return -EINVAL; return 0; }

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/* sdma is disabled by default in vbios, need to re-enable in driver */
static int rv_smc_enable_sdma(struct pp_hwmgr *hwmgr) { PP_ASSERT_WITH_CODE(!rv_send_msg_to_smc(hwmgr, PPSMC_MSG_PowerUpSdma), "Attempt to power up sdma Failed!", return -EINVAL); return 0; }

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static int rv_smc_disable_sdma(struct pp_hwmgr *hwmgr) { PP_ASSERT_WITH_CODE(!rv_send_msg_to_smc(hwmgr, PPSMC_MSG_PowerDownSdma), "Attempt to power down sdma Failed!", return -EINVAL); return 0; }

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/* vcn is disabled by default in vbios, need to re-enable in driver */
static int rv_smc_enable_vcn(struct pp_hwmgr *hwmgr) { PP_ASSERT_WITH_CODE(!rv_send_msg_to_smc_with_parameter(hwmgr, PPSMC_MSG_PowerUpVcn, 0), "Attempt to power up vcn Failed!", return -EINVAL); return 0; }

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static int rv_smc_disable_vcn(struct pp_hwmgr *hwmgr) { PP_ASSERT_WITH_CODE(!rv_send_msg_to_smc_with_parameter(hwmgr, PPSMC_MSG_PowerDownVcn, 0), "Attempt to power down vcn Failed!", return -EINVAL); return 0; }

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static int rv_smu_fini(struct pp_hwmgr *hwmgr) { struct rv_smumgr *priv = (struct rv_smumgr *)(hwmgr->smu_backend); if (priv) { rv_smc_disable_sdma(hwmgr); rv_smc_disable_vcn(hwmgr); cgs_free_gpu_mem(hwmgr->device, priv->smu_tables.entry[WMTABLE].handle); cgs_free_gpu_mem(hwmgr->device, priv->smu_tables.entry[CLOCKTABLE].handle); kfree(hwmgr->smu_backend); hwmgr->smu_backend = NULL; } return 0; }

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static int rv_start_smu(struct pp_hwmgr *hwmgr) { if (rv_verify_smc_interface(hwmgr)) return -EINVAL; if (rv_smc_enable_sdma(hwmgr)) return -EINVAL; if (rv_smc_enable_vcn(hwmgr)) return -EINVAL; return 0; }

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static int rv_smu_init(struct pp_hwmgr *hwmgr) { struct rv_smumgr *priv; uint64_t mc_addr; void *kaddr = NULL; unsigned long handle; priv = kzalloc(sizeof(struct rv_smumgr), GFP_KERNEL); if (!priv) return -ENOMEM; hwmgr->smu_backend = priv; /* allocate space for watermarks table */ smu_allocate_memory(hwmgr->device, sizeof(Watermarks_t), CGS_GPU_MEM_TYPE__GART_CACHEABLE, PAGE_SIZE, &mc_addr, &kaddr, &handle); PP_ASSERT_WITH_CODE(kaddr, "[rv_smu_init] Out of memory for wmtable.", kfree(hwmgr->smu_backend); hwmgr->smu_backend = NULL; return -EINVAL); priv->smu_tables.entry[WMTABLE].version = 0x01; priv->smu_tables.entry[WMTABLE].size = sizeof(Watermarks_t); priv->smu_tables.entry[WMTABLE].table_id = TABLE_WATERMARKS; priv->smu_tables.entry[WMTABLE].table_addr_high = smu_upper_32_bits(mc_addr); priv->smu_tables.entry[WMTABLE].table_addr_low = smu_lower_32_bits(mc_addr); priv->smu_tables.entry[WMTABLE].table = kaddr; priv->smu_tables.entry[WMTABLE].handle = handle; /* allocate space for watermarks table */ smu_allocate_memory(hwmgr->device, sizeof(DpmClocks_t), CGS_GPU_MEM_TYPE__GART_CACHEABLE, PAGE_SIZE, &mc_addr, &kaddr, &handle); PP_ASSERT_WITH_CODE(kaddr, "[rv_smu_init] Out of memory for CLOCKTABLE.", cgs_free_gpu_mem(hwmgr->device, (cgs_handle_t)priv->smu_tables.entry[WMTABLE].handle); kfree(hwmgr->smu_backend); hwmgr->smu_backend = NULL; return -EINVAL); priv->smu_tables.entry[CLOCKTABLE].version = 0x01; priv->smu_tables.entry[CLOCKTABLE].size = sizeof(DpmClocks_t); priv->smu_tables.entry[CLOCKTABLE].table_id = TABLE_DPMCLOCKS; priv->smu_tables.entry[CLOCKTABLE].table_addr_high = smu_upper_32_bits(mc_addr); priv->smu_tables.entry[CLOCKTABLE].table_addr_low = smu_lower_32_bits(mc_addr); priv->smu_tables.entry[CLOCKTABLE].table = kaddr; priv->smu_tables.entry[CLOCKTABLE].handle = handle; return 0; }

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const struct pp_smumgr_func rv_smu_funcs = { .smu_init = &rv_smu_init, .smu_fini = &rv_smu_fini, .start_smu = &rv_start_smu, .request_smu_load_specific_fw = NULL, .send_msg_to_smc = &rv_send_msg_to_smc, .send_msg_to_smc_with_parameter = &rv_send_msg_to_smc_with_parameter, .download_pptable_settings = NULL, .upload_pptable_settings = NULL, };

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