diff options
Diffstat (limited to 'drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c')
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c | 704 |
1 files changed, 704 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c b/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c new file mode 100644 index 0000000..9af2f59 --- /dev/null +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/ppatomctrl.c @@ -0,0 +1,704 @@ +/* + * Copyright 2015 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/module.h> +#include <linux/slab.h> +#include <linux/fb.h> + +#include "ppatomctrl.h" +#include "atombios.h" +#include "cgs_common.h" +#include "pp_debug.h" +#define MEM_ID_MASK 0xff000000 +#define MEM_ID_SHIFT 24 +#define CLOCK_RANGE_MASK 0x00ffffff +#define CLOCK_RANGE_SHIFT 0 +#define LOW_NIBBLE_MASK 0xf +#define DATA_EQU_PREV 0 +#define DATA_FROM_TABLE 4 + +union voltage_object_info { + struct _ATOM_VOLTAGE_OBJECT_INFO v1; + struct _ATOM_VOLTAGE_OBJECT_INFO_V2 v2; + struct _ATOM_VOLTAGE_OBJECT_INFO_V3_1 v3; +}; + +static int atomctrl_retrieve_ac_timing( + uint8_t index, + ATOM_INIT_REG_BLOCK *reg_block, + pp_atomctrl_mc_reg_table *table) +{ + uint32_t i, j; + uint8_t tmem_id; + ATOM_MEMORY_SETTING_DATA_BLOCK *reg_data = (ATOM_MEMORY_SETTING_DATA_BLOCK *) + ((uint8_t *)reg_block + (2 * sizeof(uint16_t)) + le16_to_cpu(reg_block->usRegIndexTblSize)); + + uint8_t num_ranges = 0; + + while (*(uint32_t *)reg_data != END_OF_REG_DATA_BLOCK && + num_ranges < VBIOS_MAX_AC_TIMING_ENTRIES) { + tmem_id = (uint8_t)((*(uint32_t *)reg_data & MEM_ID_MASK) >> MEM_ID_SHIFT); + + if (index == tmem_id) { + table->mc_reg_table_entry[num_ranges].mclk_max = + (uint32_t)((*(uint32_t *)reg_data & CLOCK_RANGE_MASK) >> + CLOCK_RANGE_SHIFT); + + for (i = 0, j = 1; i < table->last; i++) { + if ((table->mc_reg_address[i].uc_pre_reg_data & + LOW_NIBBLE_MASK) == DATA_FROM_TABLE) { + table->mc_reg_table_entry[num_ranges].mc_data[i] = + (uint32_t)*((uint32_t *)reg_data + j); + j++; + } else if ((table->mc_reg_address[i].uc_pre_reg_data & + LOW_NIBBLE_MASK) == DATA_EQU_PREV) { + table->mc_reg_table_entry[num_ranges].mc_data[i] = + table->mc_reg_table_entry[num_ranges].mc_data[i-1]; + } + } + num_ranges++; + } + + reg_data = (ATOM_MEMORY_SETTING_DATA_BLOCK *) + ((uint8_t *)reg_data + le16_to_cpu(reg_block->usRegDataBlkSize)) ; + } + + PP_ASSERT_WITH_CODE((*(uint32_t *)reg_data == END_OF_REG_DATA_BLOCK), + "Invalid VramInfo table.", return -1); + table->num_entries = num_ranges; + + return 0; +} + +/** + * Get memory clock AC timing registers index from VBIOS table + * VBIOS set end of memory clock AC timing registers by ucPreRegDataLength bit6 = 1 + * @param reg_block the address ATOM_INIT_REG_BLOCK + * @param table the address of MCRegTable + * @return PP_Result_OK + */ +static int atomctrl_set_mc_reg_address_table( + ATOM_INIT_REG_BLOCK *reg_block, + pp_atomctrl_mc_reg_table *table) +{ + uint8_t i = 0; + uint8_t num_entries = (uint8_t)((le16_to_cpu(reg_block->usRegIndexTblSize)) + / sizeof(ATOM_INIT_REG_INDEX_FORMAT)); + ATOM_INIT_REG_INDEX_FORMAT *format = ®_block->asRegIndexBuf[0]; + + num_entries--; /* subtract 1 data end mark entry */ + + PP_ASSERT_WITH_CODE((num_entries <= VBIOS_MC_REGISTER_ARRAY_SIZE), + "Invalid VramInfo table.", return -1); + + /* ucPreRegDataLength bit6 = 1 is the end of memory clock AC timing registers */ + while ((!(format->ucPreRegDataLength & ACCESS_PLACEHOLDER)) && + (i < num_entries)) { + table->mc_reg_address[i].s1 = + (uint16_t)(le16_to_cpu(format->usRegIndex)); + table->mc_reg_address[i].uc_pre_reg_data = + format->ucPreRegDataLength; + + i++; + format = (ATOM_INIT_REG_INDEX_FORMAT *) + ((uint8_t *)format + sizeof(ATOM_INIT_REG_INDEX_FORMAT)); + } + + table->last = i; + return 0; +} + + +int atomctrl_initialize_mc_reg_table( + struct pp_hwmgr *hwmgr, + uint8_t module_index, + pp_atomctrl_mc_reg_table *table) +{ + ATOM_VRAM_INFO_HEADER_V2_1 *vram_info; + ATOM_INIT_REG_BLOCK *reg_block; + int result = 0; + u8 frev, crev; + u16 size; + + vram_info = (ATOM_VRAM_INFO_HEADER_V2_1 *) + cgs_atom_get_data_table(hwmgr->device, + GetIndexIntoMasterTable(DATA, VRAM_Info), &size, &frev, &crev); + + if (module_index >= vram_info->ucNumOfVRAMModule) { + printk(KERN_ERR "[ powerplay ] Invalid VramInfo table."); + result = -1; + } else if (vram_info->sHeader.ucTableFormatRevision < 2) { + printk(KERN_ERR "[ powerplay ] Invalid VramInfo table."); + result = -1; + } + + if (0 == result) { + reg_block = (ATOM_INIT_REG_BLOCK *) + ((uint8_t *)vram_info + le16_to_cpu(vram_info->usMemClkPatchTblOffset)); + result = atomctrl_set_mc_reg_address_table(reg_block, table); + } + + if (0 == result) { + result = atomctrl_retrieve_ac_timing(module_index, + reg_block, table); + } + + return result; +} + +/** + * Set DRAM timings based on engine clock and memory clock. + */ +int atomctrl_set_engine_dram_timings_rv770( + struct pp_hwmgr *hwmgr, + uint32_t engine_clock, + uint32_t memory_clock) +{ + SET_ENGINE_CLOCK_PS_ALLOCATION engine_clock_parameters; + + /* They are both in 10KHz Units. */ + engine_clock_parameters.ulTargetEngineClock = + (uint32_t) engine_clock & SET_CLOCK_FREQ_MASK; + engine_clock_parameters.ulTargetEngineClock |= + (COMPUTE_ENGINE_PLL_PARAM << 24); + + /* in 10 khz units.*/ + engine_clock_parameters.sReserved.ulClock = + (uint32_t) memory_clock & SET_CLOCK_FREQ_MASK; + return cgs_atom_exec_cmd_table(hwmgr->device, + GetIndexIntoMasterTable(COMMAND, DynamicMemorySettings), + &engine_clock_parameters); +} + +/** + * Private Function to get the PowerPlay Table Address. + * WARNING: The tabled returned by this function is in + * dynamically allocated memory. + * The caller has to release if by calling kfree. + */ +static ATOM_VOLTAGE_OBJECT_INFO *get_voltage_info_table(void *device) +{ + int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo); + u8 frev, crev; + u16 size; + union voltage_object_info *voltage_info; + + voltage_info = (union voltage_object_info *) + cgs_atom_get_data_table(device, index, + &size, &frev, &crev); + + if (voltage_info != NULL) + return (ATOM_VOLTAGE_OBJECT_INFO *) &(voltage_info->v3); + else + return NULL; +} + +static const ATOM_VOLTAGE_OBJECT_V3 *atomctrl_lookup_voltage_type_v3( + const ATOM_VOLTAGE_OBJECT_INFO_V3_1 * voltage_object_info_table, + uint8_t voltage_type, uint8_t voltage_mode) +{ + unsigned int size = le16_to_cpu(voltage_object_info_table->sHeader.usStructureSize); + unsigned int offset = offsetof(ATOM_VOLTAGE_OBJECT_INFO_V3_1, asVoltageObj[0]); + uint8_t *start = (uint8_t *)voltage_object_info_table; + + while (offset < size) { + const ATOM_VOLTAGE_OBJECT_V3 *voltage_object = + (const ATOM_VOLTAGE_OBJECT_V3 *)(start + offset); + + if (voltage_type == voltage_object->asGpioVoltageObj.sHeader.ucVoltageType && + voltage_mode == voltage_object->asGpioVoltageObj.sHeader.ucVoltageMode) + return voltage_object; + + offset += le16_to_cpu(voltage_object->asGpioVoltageObj.sHeader.usSize); + } + + return NULL; +} + +/** atomctrl_get_memory_pll_dividers_si(). + * + * @param hwmgr input parameter: pointer to HwMgr + * @param clock_value input parameter: memory clock + * @param dividers output parameter: memory PLL dividers + * @param strobe_mode input parameter: 1 for strobe mode, 0 for performance mode + */ +int atomctrl_get_memory_pll_dividers_si( + struct pp_hwmgr *hwmgr, + uint32_t clock_value, + pp_atomctrl_memory_clock_param *mpll_param, + bool strobe_mode) +{ + COMPUTE_MEMORY_CLOCK_PARAM_PARAMETERS_V2_1 mpll_parameters; + int result; + + mpll_parameters.ulClock = (uint32_t) clock_value; + mpll_parameters.ucInputFlag = (uint8_t)((strobe_mode) ? 1 : 0); + + result = cgs_atom_exec_cmd_table + (hwmgr->device, + GetIndexIntoMasterTable(COMMAND, ComputeMemoryClockParam), + &mpll_parameters); + + if (0 == result) { + mpll_param->mpll_fb_divider.clk_frac = + mpll_parameters.ulFbDiv.usFbDivFrac; + mpll_param->mpll_fb_divider.cl_kf = + mpll_parameters.ulFbDiv.usFbDiv; + mpll_param->mpll_post_divider = + (uint32_t)mpll_parameters.ucPostDiv; + mpll_param->vco_mode = + (uint32_t)(mpll_parameters.ucPllCntlFlag & + MPLL_CNTL_FLAG_VCO_MODE_MASK); + mpll_param->yclk_sel = + (uint32_t)((mpll_parameters.ucPllCntlFlag & + MPLL_CNTL_FLAG_BYPASS_DQ_PLL) ? 1 : 0); + mpll_param->qdr = + (uint32_t)((mpll_parameters.ucPllCntlFlag & + MPLL_CNTL_FLAG_QDR_ENABLE) ? 1 : 0); + mpll_param->half_rate = + (uint32_t)((mpll_parameters.ucPllCntlFlag & + MPLL_CNTL_FLAG_AD_HALF_RATE) ? 1 : 0); + mpll_param->dll_speed = + (uint32_t)(mpll_parameters.ucDllSpeed); + mpll_param->bw_ctrl = + (uint32_t)(mpll_parameters.ucBWCntl); + } + + return result; +} + +int atomctrl_get_engine_pll_dividers_vi( + struct pp_hwmgr *hwmgr, + uint32_t clock_value, + pp_atomctrl_clock_dividers_vi *dividers) +{ + COMPUTE_GPU_CLOCK_OUTPUT_PARAMETERS_V1_6 pll_patameters; + int result; + + pll_patameters.ulClock.ulClock = clock_value; + pll_patameters.ulClock.ucPostDiv = COMPUTE_GPUCLK_INPUT_FLAG_SCLK; + + result = cgs_atom_exec_cmd_table + (hwmgr->device, + GetIndexIntoMasterTable(COMMAND, ComputeMemoryEnginePLL), + &pll_patameters); + + if (0 == result) { + dividers->pll_post_divider = + pll_patameters.ulClock.ucPostDiv; + dividers->real_clock = + pll_patameters.ulClock.ulClock; + + dividers->ul_fb_div.ul_fb_div_frac = + pll_patameters.ulFbDiv.usFbDivFrac; + dividers->ul_fb_div.ul_fb_div = + pll_patameters.ulFbDiv.usFbDiv; + + dividers->uc_pll_ref_div = + pll_patameters.ucPllRefDiv; + dividers->uc_pll_post_div = + pll_patameters.ucPllPostDiv; + dividers->uc_pll_cntl_flag = + pll_patameters.ucPllCntlFlag; + } + + return result; +} + +int atomctrl_get_dfs_pll_dividers_vi( + struct pp_hwmgr *hwmgr, + uint32_t clock_value, + pp_atomctrl_clock_dividers_vi *dividers) +{ + COMPUTE_GPU_CLOCK_OUTPUT_PARAMETERS_V1_6 pll_patameters; + int result; + + pll_patameters.ulClock.ulClock = clock_value; + pll_patameters.ulClock.ucPostDiv = + COMPUTE_GPUCLK_INPUT_FLAG_DEFAULT_GPUCLK; + + result = cgs_atom_exec_cmd_table + (hwmgr->device, + GetIndexIntoMasterTable(COMMAND, ComputeMemoryEnginePLL), + &pll_patameters); + + if (0 == result) { + dividers->pll_post_divider = + pll_patameters.ulClock.ucPostDiv; + dividers->real_clock = + pll_patameters.ulClock.ulClock; + + dividers->ul_fb_div.ul_fb_div_frac = + pll_patameters.ulFbDiv.usFbDivFrac; + dividers->ul_fb_div.ul_fb_div = + pll_patameters.ulFbDiv.usFbDiv; + + dividers->uc_pll_ref_div = + pll_patameters.ucPllRefDiv; + dividers->uc_pll_post_div = + pll_patameters.ucPllPostDiv; + dividers->uc_pll_cntl_flag = + pll_patameters.ucPllCntlFlag; + } + + return result; +} + +/** + * Get the reference clock in 10KHz + */ +uint32_t atomctrl_get_reference_clock(struct pp_hwmgr *hwmgr) +{ + ATOM_FIRMWARE_INFO *fw_info; + u8 frev, crev; + u16 size; + uint32_t clock; + + fw_info = (ATOM_FIRMWARE_INFO *) + cgs_atom_get_data_table(hwmgr->device, + GetIndexIntoMasterTable(DATA, FirmwareInfo), + &size, &frev, &crev); + + if (fw_info == NULL) + clock = 2700; + else + clock = (uint32_t)(le16_to_cpu(fw_info->usReferenceClock)); + + return clock; +} + +/** + * Returns 0 if the given voltage type is controlled by GPIO pins. + * voltage_type is one of SET_VOLTAGE_TYPE_ASIC_VDDC, + * SET_VOLTAGE_TYPE_ASIC_MVDDC, SET_VOLTAGE_TYPE_ASIC_MVDDQ. + * voltage_mode is one of ATOM_SET_VOLTAGE, ATOM_SET_VOLTAGE_PHASE + */ +bool atomctrl_is_voltage_controled_by_gpio_v3( + struct pp_hwmgr *hwmgr, + uint8_t voltage_type, + uint8_t voltage_mode) +{ + ATOM_VOLTAGE_OBJECT_INFO_V3_1 *voltage_info = + (ATOM_VOLTAGE_OBJECT_INFO_V3_1 *)get_voltage_info_table(hwmgr->device); + bool ret; + + PP_ASSERT_WITH_CODE((NULL != voltage_info), + "Could not find Voltage Table in BIOS.", return -1;); + + ret = (NULL != atomctrl_lookup_voltage_type_v3 + (voltage_info, voltage_type, voltage_mode)) ? 0 : 1; + + return ret; +} + +int atomctrl_get_voltage_table_v3( + struct pp_hwmgr *hwmgr, + uint8_t voltage_type, + uint8_t voltage_mode, + pp_atomctrl_voltage_table *voltage_table) +{ + ATOM_VOLTAGE_OBJECT_INFO_V3_1 *voltage_info = + (ATOM_VOLTAGE_OBJECT_INFO_V3_1 *)get_voltage_info_table(hwmgr->device); + const ATOM_VOLTAGE_OBJECT_V3 *voltage_object; + unsigned int i; + + PP_ASSERT_WITH_CODE((NULL != voltage_info), + "Could not find Voltage Table in BIOS.", return -1;); + + voltage_object = atomctrl_lookup_voltage_type_v3 + (voltage_info, voltage_type, voltage_mode); + + if (voltage_object == NULL) + return -1; + + PP_ASSERT_WITH_CODE( + (voltage_object->asGpioVoltageObj.ucGpioEntryNum <= + PP_ATOMCTRL_MAX_VOLTAGE_ENTRIES), + "Too many voltage entries!", + return -1; + ); + + for (i = 0; i < voltage_object->asGpioVoltageObj.ucGpioEntryNum; i++) { + voltage_table->entries[i].value = + voltage_object->asGpioVoltageObj.asVolGpioLut[i].usVoltageValue; + voltage_table->entries[i].smio_low = + voltage_object->asGpioVoltageObj.asVolGpioLut[i].ulVoltageId; + } + + voltage_table->mask_low = + voltage_object->asGpioVoltageObj.ulGpioMaskVal; + voltage_table->count = + voltage_object->asGpioVoltageObj.ucGpioEntryNum; + voltage_table->phase_delay = + voltage_object->asGpioVoltageObj.ucPhaseDelay; + + return 0; +} + +static bool atomctrl_lookup_gpio_pin( + ATOM_GPIO_PIN_LUT * gpio_lookup_table, + const uint32_t pinId, + pp_atomctrl_gpio_pin_assignment *gpio_pin_assignment) +{ + unsigned int size = le16_to_cpu(gpio_lookup_table->sHeader.usStructureSize); + unsigned int offset = offsetof(ATOM_GPIO_PIN_LUT, asGPIO_Pin[0]); + uint8_t *start = (uint8_t *)gpio_lookup_table; + + while (offset < size) { + const ATOM_GPIO_PIN_ASSIGNMENT *pin_assignment = + (const ATOM_GPIO_PIN_ASSIGNMENT *)(start + offset); + + if (pinId == pin_assignment->ucGPIO_ID) { + gpio_pin_assignment->uc_gpio_pin_bit_shift = + pin_assignment->ucGpioPinBitShift; + gpio_pin_assignment->us_gpio_pin_aindex = + le16_to_cpu(pin_assignment->usGpioPin_AIndex); + return 0; + } + + offset += offsetof(ATOM_GPIO_PIN_ASSIGNMENT, ucGPIO_ID) + 1; + } + + return 1; +} + +/** + * Private Function to get the PowerPlay Table Address. + * WARNING: The tabled returned by this function is in + * dynamically allocated memory. + * The caller has to release if by calling kfree. + */ +static ATOM_GPIO_PIN_LUT *get_gpio_lookup_table(void *device) +{ + u8 frev, crev; + u16 size; + void *table_address; + + table_address = (ATOM_GPIO_PIN_LUT *) + cgs_atom_get_data_table(device, + GetIndexIntoMasterTable(DATA, GPIO_Pin_LUT), + &size, &frev, &crev); + + PP_ASSERT_WITH_CODE((NULL != table_address), + "Error retrieving BIOS Table Address!", return NULL;); + + return (ATOM_GPIO_PIN_LUT *)table_address; +} + +/** + * Returns 1 if the given pin id find in lookup table. + */ +bool atomctrl_get_pp_assign_pin( + struct pp_hwmgr *hwmgr, + const uint32_t pinId, + pp_atomctrl_gpio_pin_assignment *gpio_pin_assignment) +{ + bool bRet = 0; + ATOM_GPIO_PIN_LUT *gpio_lookup_table = + get_gpio_lookup_table(hwmgr->device); + + PP_ASSERT_WITH_CODE((NULL != gpio_lookup_table), + "Could not find GPIO lookup Table in BIOS.", return -1); + + bRet = atomctrl_lookup_gpio_pin(gpio_lookup_table, pinId, + gpio_pin_assignment); + + return bRet; +} + +/** atomctrl_get_voltage_evv_on_sclk gets voltage via call to ATOM COMMAND table. + * @param hwmgr input: pointer to hwManager + * @param voltage_type input: type of EVV voltage VDDC or VDDGFX + * @param sclk input: in 10Khz unit. DPM state SCLK frequency + * which is define in PPTable SCLK/VDDC dependence + * table associated with this virtual_voltage_Id + * @param virtual_voltage_Id input: voltage id which match per voltage DPM state: 0xff01, 0xff02.. 0xff08 + * @param voltage output: real voltage level in unit of mv + */ +int atomctrl_get_voltage_evv_on_sclk( + struct pp_hwmgr *hwmgr, + uint8_t voltage_type, + uint32_t sclk, uint16_t virtual_voltage_Id, + uint16_t *voltage) +{ + int result; + GET_VOLTAGE_INFO_INPUT_PARAMETER_V1_2 get_voltage_info_param_space; + + get_voltage_info_param_space.ucVoltageType = + voltage_type; + get_voltage_info_param_space.ucVoltageMode = + ATOM_GET_VOLTAGE_EVV_VOLTAGE; + get_voltage_info_param_space.usVoltageLevel = + virtual_voltage_Id; + get_voltage_info_param_space.ulSCLKFreq = + sclk; + + result = cgs_atom_exec_cmd_table(hwmgr->device, + GetIndexIntoMasterTable(COMMAND, GetVoltageInfo), + &get_voltage_info_param_space); + + if (0 != result) + return result; + + *voltage = ((GET_EVV_VOLTAGE_INFO_OUTPUT_PARAMETER_V1_2 *) + (&get_voltage_info_param_space))->usVoltageLevel; + + return result; +} + +/** + * Get the mpll reference clock in 10KHz + */ +uint32_t atomctrl_get_mpll_reference_clock(struct pp_hwmgr *hwmgr) +{ + ATOM_COMMON_TABLE_HEADER *fw_info; + uint32_t clock; + u8 frev, crev; + u16 size; + + fw_info = (ATOM_COMMON_TABLE_HEADER *) + cgs_atom_get_data_table(hwmgr->device, + GetIndexIntoMasterTable(DATA, FirmwareInfo), + &size, &frev, &crev); + + if (fw_info == NULL) + clock = 2700; + else { + if ((fw_info->ucTableFormatRevision == 2) && + (le16_to_cpu(fw_info->usStructureSize) >= sizeof(ATOM_FIRMWARE_INFO_V2_1))) { + ATOM_FIRMWARE_INFO_V2_1 *fwInfo_2_1 = + (ATOM_FIRMWARE_INFO_V2_1 *)fw_info; + clock = (uint32_t)(le16_to_cpu(fwInfo_2_1->usMemoryReferenceClock)); + } else { + ATOM_FIRMWARE_INFO *fwInfo_0_0 = + (ATOM_FIRMWARE_INFO *)fw_info; + clock = (uint32_t)(le16_to_cpu(fwInfo_0_0->usReferenceClock)); + } + } + + return clock; +} + +/** + * Get the asic internal spread spectrum table + */ +static ATOM_ASIC_INTERNAL_SS_INFO *asic_internal_ss_get_ss_table(void *device) +{ + ATOM_ASIC_INTERNAL_SS_INFO *table = NULL; + u8 frev, crev; + u16 size; + + table = (ATOM_ASIC_INTERNAL_SS_INFO *) + cgs_atom_get_data_table(device, + GetIndexIntoMasterTable(DATA, ASIC_InternalSS_Info), + &size, &frev, &crev); + + return table; +} + +/** + * Get the asic internal spread spectrum assignment + */ +static int asic_internal_ss_get_ss_asignment(struct pp_hwmgr *hwmgr, + const uint8_t clockSource, + const uint32_t clockSpeed, + pp_atomctrl_internal_ss_info *ssEntry) +{ + ATOM_ASIC_INTERNAL_SS_INFO *table; + ATOM_ASIC_SS_ASSIGNMENT *ssInfo; + int entry_found = 0; + + memset(ssEntry, 0x00, sizeof(pp_atomctrl_internal_ss_info)); + + table = asic_internal_ss_get_ss_table(hwmgr->device); + + if (NULL == table) + return -1; + + ssInfo = &table->asSpreadSpectrum[0]; + + while (((uint8_t *)ssInfo - (uint8_t *)table) < + le16_to_cpu(table->sHeader.usStructureSize)) { + if ((clockSource == ssInfo->ucClockIndication) && + ((uint32_t)clockSpeed <= le32_to_cpu(ssInfo->ulTargetClockRange))) { + entry_found = 1; + break; + } + + ssInfo = (ATOM_ASIC_SS_ASSIGNMENT *)((uint8_t *)ssInfo + + sizeof(ATOM_ASIC_SS_ASSIGNMENT)); + } + + if (entry_found) { + ssEntry->speed_spectrum_percentage = + ssInfo->usSpreadSpectrumPercentage; + ssEntry->speed_spectrum_rate = ssInfo->usSpreadRateInKhz; + + if (((GET_DATA_TABLE_MAJOR_REVISION(table) == 2) && + (GET_DATA_TABLE_MINOR_REVISION(table) >= 2)) || + (GET_DATA_TABLE_MAJOR_REVISION(table) == 3)) { + ssEntry->speed_spectrum_rate /= 100; + } + + switch (ssInfo->ucSpreadSpectrumMode) { + case 0: + ssEntry->speed_spectrum_mode = + pp_atomctrl_spread_spectrum_mode_down; + break; + case 1: + ssEntry->speed_spectrum_mode = + pp_atomctrl_spread_spectrum_mode_center; + break; + default: + ssEntry->speed_spectrum_mode = + pp_atomctrl_spread_spectrum_mode_down; + break; + } + } + + return entry_found ? 0 : 1; +} + +/** + * Get the memory clock spread spectrum info + */ +int atomctrl_get_memory_clock_spread_spectrum( + struct pp_hwmgr *hwmgr, + const uint32_t memory_clock, + pp_atomctrl_internal_ss_info *ssInfo) +{ + return asic_internal_ss_get_ss_asignment(hwmgr, + ASIC_INTERNAL_MEMORY_SS, memory_clock, ssInfo); +} +/** + * Get the engine clock spread spectrum info + */ +int atomctrl_get_engine_clock_spread_spectrum( + struct pp_hwmgr *hwmgr, + const uint32_t engine_clock, + pp_atomctrl_internal_ss_info *ssInfo) +{ + return asic_internal_ss_get_ss_asignment(hwmgr, + ASIC_INTERNAL_ENGINE_SS, engine_clock, ssInfo); +} + + |