diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_smu.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_smu.c | 361 |
1 files changed, 361 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_smu.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_smu.c new file mode 100644 index 000000000000..925d6e13620e --- /dev/null +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_smu.c @@ -0,0 +1,361 @@ +/* + * Copyright 2021 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. + * + * Authors: AMD + * + */ + +#include "core_types.h" +#include "clk_mgr_internal.h" +#include "reg_helper.h" +#include "dm_helpers.h" +#include "dcn315_smu.h" +#include "mp/mp_13_0_5_offset.h" + +#define MAX_INSTANCE 6 +#define MAX_SEGMENT 6 + +struct IP_BASE_INSTANCE +{ + unsigned int segment[MAX_SEGMENT]; +}; + +struct IP_BASE +{ + struct IP_BASE_INSTANCE instance[MAX_INSTANCE]; +}; + +static const struct IP_BASE MP0_BASE = { { { { 0x00016000, 0x00DC0000, 0x00E00000, 0x00E40000, 0x0243FC00, 0 } }, + { { 0, 0, 0, 0, 0, 0 } }, + { { 0, 0, 0, 0, 0, 0 } }, + { { 0, 0, 0, 0, 0, 0 } }, + { { 0, 0, 0, 0, 0, 0 } }, + { { 0, 0, 0, 0, 0, 0 } } } }; +static const struct IP_BASE NBIO_BASE = { { { { 0x00000000, 0x00000014, 0x00000D20, 0x00010400, 0x0241B000, 0x04040000 } }, + { { 0, 0, 0, 0, 0, 0 } }, + { { 0, 0, 0, 0, 0, 0 } }, + { { 0, 0, 0, 0, 0, 0 } }, + { { 0, 0, 0, 0, 0, 0 } }, + { { 0, 0, 0, 0, 0, 0 } } } }; + +#define regBIF_BX_PF2_RSMU_INDEX 0x0000 +#define regBIF_BX_PF2_RSMU_INDEX_BASE_IDX 1 +#define regBIF_BX_PF2_RSMU_DATA 0x0001 +#define regBIF_BX_PF2_RSMU_DATA_BASE_IDX 1 + +#define REG(reg_name) \ + (MP0_BASE.instance[0].segment[reg ## reg_name ## _BASE_IDX] + reg ## reg_name) + +#define FN(reg_name, field) \ + FD(reg_name##__##field) + +#define REG_NBIO(reg_name) \ + (NBIO_BASE.instance[0].segment[regBIF_BX_PF2_ ## reg_name ## _BASE_IDX] + regBIF_BX_PF2_ ## reg_name) + +#include "logger_types.h" +#undef DC_LOGGER +#define DC_LOGGER \ + CTX->logger +#define smu_print(str, ...) {DC_LOG_SMU(str, ##__VA_ARGS__); } + +#define mmMP1_C2PMSG_3 0x3B1050C + +#define VBIOSSMC_MSG_TestMessage 0x01 ///< To check if PMFW is alive and responding. Requirement specified by PMFW team +#define VBIOSSMC_MSG_GetPmfwVersion 0x02 ///< Get PMFW version +#define VBIOSSMC_MSG_Spare0 0x03 ///< Spare0 +#define VBIOSSMC_MSG_SetDispclkFreq 0x04 ///< Set display clock frequency in MHZ +#define VBIOSSMC_MSG_Spare1 0x05 ///< Spare1 +#define VBIOSSMC_MSG_SetDppclkFreq 0x06 ///< Set DPP clock frequency in MHZ +#define VBIOSSMC_MSG_SetHardMinDcfclkByFreq 0x07 ///< Set DCF clock frequency hard min in MHZ +#define VBIOSSMC_MSG_SetMinDeepSleepDcfclk 0x08 ///< Set DCF clock minimum frequency in deep sleep in MHZ +#define VBIOSSMC_MSG_GetDtbclkFreq 0x09 ///< Get display dtb clock frequency in MHZ in case VMIN does not support phy frequency +#define VBIOSSMC_MSG_SetDtbClk 0x0A ///< Set dtb clock frequency, return frequemcy in MHZ +#define VBIOSSMC_MSG_SetDisplayCount 0x0B ///< Inform PMFW of number of display connected +#define VBIOSSMC_MSG_EnableTmdp48MHzRefclkPwrDown 0x0C ///< To ask PMFW turn off TMDP 48MHz refclk during display off to save power +#define VBIOSSMC_MSG_UpdatePmeRestore 0x0D ///< To ask PMFW to write into Azalia for PME wake up event +#define VBIOSSMC_MSG_SetVbiosDramAddrHigh 0x0E ///< Set DRAM address high 32 bits for WM table transfer +#define VBIOSSMC_MSG_SetVbiosDramAddrLow 0x0F ///< Set DRAM address low 32 bits for WM table transfer +#define VBIOSSMC_MSG_TransferTableSmu2Dram 0x10 ///< Transfer table from PMFW SRAM to system DRAM +#define VBIOSSMC_MSG_TransferTableDram2Smu 0x11 ///< Transfer table from system DRAM to PMFW +#define VBIOSSMC_MSG_SetDisplayIdleOptimizations 0x12 ///< Set Idle state optimization for display off +#define VBIOSSMC_MSG_GetDprefclkFreq 0x13 ///< Get DPREF clock frequency. Return in MHZ +#define VBIOSSMC_Message_Count 0x14 ///< Total number of VBIS and DAL messages + +#define VBIOSSMC_Status_BUSY 0x0 +#define VBIOSSMC_Result_OK 0x01 ///< Message Response OK +#define VBIOSSMC_Result_Failed 0xFF ///< Message Response Failed +#define VBIOSSMC_Result_UnknownCmd 0xFE ///< Message Response Unknown Command +#define VBIOSSMC_Result_CmdRejectedPrereq 0xFD ///< Message Response Command Failed Prerequisite +#define VBIOSSMC_Result_CmdRejectedBusy 0xFC ///< Message Response Command Rejected due to PMFW is busy. Sender should retry sending this message + +/* + * Function to be used instead of REG_WAIT macro because the wait ends when + * the register is NOT EQUAL to zero, and because the translation in msg_if.h + * won't work with REG_WAIT. + */ +static uint32_t dcn315_smu_wait_for_response(struct clk_mgr_internal *clk_mgr, unsigned int delay_us, unsigned int max_retries) +{ + uint32_t res_val = VBIOSSMC_Status_BUSY; + + do { + res_val = REG_READ(MP1_SMN_C2PMSG_38); + if (res_val != VBIOSSMC_Status_BUSY) + break; + + if (delay_us >= 1000) + msleep(delay_us/1000); + else if (delay_us > 0) + udelay(delay_us); + } while (max_retries--); + + return res_val; +} + +static int dcn315_smu_send_msg_with_param( + struct clk_mgr_internal *clk_mgr, + unsigned int msg_id, unsigned int param) +{ + uint32_t result; + + result = dcn315_smu_wait_for_response(clk_mgr, 10, 200000); + + if (result != VBIOSSMC_Result_OK) + smu_print("SMU Response was not OK. SMU response after wait received is: %d\n", result); + + if (result == VBIOSSMC_Status_BUSY) { + return -1; + } + + /* First clear response register */ + REG_WRITE(MP1_SMN_C2PMSG_38, VBIOSSMC_Status_BUSY); + + /* Set the parameter register for the SMU message, unit is Mhz */ + REG_WRITE(MP1_SMN_C2PMSG_37, param); + + /* Trigger the message transaction by writing the message ID */ + generic_write_indirect_reg(CTX, + REG_NBIO(RSMU_INDEX), REG_NBIO(RSMU_DATA), + mmMP1_C2PMSG_3, msg_id); + + result = dcn315_smu_wait_for_response(clk_mgr, 10, 200000); + + if (result == VBIOSSMC_Status_BUSY) { + ASSERT(0); + dm_helpers_smu_timeout(CTX, msg_id, param, 10 * 200000); + } + + return REG_READ(MP1_SMN_C2PMSG_37); +} + +int dcn315_smu_get_smu_version(struct clk_mgr_internal *clk_mgr) +{ + return dcn315_smu_send_msg_with_param( + clk_mgr, + VBIOSSMC_MSG_GetPmfwVersion, + 0); +} + + +int dcn315_smu_set_dispclk(struct clk_mgr_internal *clk_mgr, int requested_dispclk_khz) +{ + int actual_dispclk_set_mhz = -1; + + if (!clk_mgr->smu_present) + return requested_dispclk_khz; + + /* Unit of SMU msg parameter is Mhz */ + actual_dispclk_set_mhz = dcn315_smu_send_msg_with_param( + clk_mgr, + VBIOSSMC_MSG_SetDispclkFreq, + khz_to_mhz_ceil(requested_dispclk_khz)); + + return actual_dispclk_set_mhz * 1000; +} + +int dcn315_smu_set_hard_min_dcfclk(struct clk_mgr_internal *clk_mgr, int requested_dcfclk_khz) +{ + int actual_dcfclk_set_mhz = -1; + + if (!clk_mgr->base.ctx->dc->debug.pstate_enabled) + return -1; + + if (!clk_mgr->smu_present) + return requested_dcfclk_khz; + + actual_dcfclk_set_mhz = dcn315_smu_send_msg_with_param( + clk_mgr, + VBIOSSMC_MSG_SetHardMinDcfclkByFreq, + khz_to_mhz_ceil(requested_dcfclk_khz)); + +#ifdef DBG + smu_print("actual_dcfclk_set_mhz %d is set to : %d\n", actual_dcfclk_set_mhz, actual_dcfclk_set_mhz * 1000); +#endif + + return actual_dcfclk_set_mhz * 1000; +} + +int dcn315_smu_set_min_deep_sleep_dcfclk(struct clk_mgr_internal *clk_mgr, int requested_min_ds_dcfclk_khz) +{ + int actual_min_ds_dcfclk_mhz = -1; + + if (!clk_mgr->base.ctx->dc->debug.pstate_enabled) + return -1; + + if (!clk_mgr->smu_present) + return requested_min_ds_dcfclk_khz; + + actual_min_ds_dcfclk_mhz = dcn315_smu_send_msg_with_param( + clk_mgr, + VBIOSSMC_MSG_SetMinDeepSleepDcfclk, + khz_to_mhz_ceil(requested_min_ds_dcfclk_khz)); + + return actual_min_ds_dcfclk_mhz * 1000; +} + +int dcn315_smu_set_dppclk(struct clk_mgr_internal *clk_mgr, int requested_dpp_khz) +{ + int actual_dppclk_set_mhz = -1; + + if (!clk_mgr->smu_present) + return requested_dpp_khz; + + actual_dppclk_set_mhz = dcn315_smu_send_msg_with_param( + clk_mgr, + VBIOSSMC_MSG_SetDppclkFreq, + khz_to_mhz_ceil(requested_dpp_khz)); + + return actual_dppclk_set_mhz * 1000; +} + +void dcn315_smu_set_display_idle_optimization(struct clk_mgr_internal *clk_mgr, uint32_t idle_info) +{ + if (!clk_mgr->base.ctx->dc->debug.pstate_enabled) + return; + + if (!clk_mgr->smu_present) + return; + + //TODO: Work with smu team to define optimization options. + dcn315_smu_send_msg_with_param( + clk_mgr, + VBIOSSMC_MSG_SetDisplayIdleOptimizations, + idle_info); +} + +void dcn315_smu_enable_phy_refclk_pwrdwn(struct clk_mgr_internal *clk_mgr, bool enable) +{ + union display_idle_optimization_u idle_info = { 0 }; + + if (!clk_mgr->smu_present) + return; + + if (enable) { + idle_info.idle_info.df_request_disabled = 1; + idle_info.idle_info.phy_ref_clk_off = 1; + } + + dcn315_smu_send_msg_with_param( + clk_mgr, + VBIOSSMC_MSG_SetDisplayIdleOptimizations, + idle_info.data); +} + +void dcn315_smu_enable_pme_wa(struct clk_mgr_internal *clk_mgr) +{ + if (!clk_mgr->smu_present) + return; + + dcn315_smu_send_msg_with_param( + clk_mgr, + VBIOSSMC_MSG_UpdatePmeRestore, + 0); +} +void dcn315_smu_set_dram_addr_high(struct clk_mgr_internal *clk_mgr, uint32_t addr_high) +{ + if (!clk_mgr->smu_present) + return; + + dcn315_smu_send_msg_with_param(clk_mgr, + VBIOSSMC_MSG_SetVbiosDramAddrHigh, addr_high); +} + +void dcn315_smu_set_dram_addr_low(struct clk_mgr_internal *clk_mgr, uint32_t addr_low) +{ + if (!clk_mgr->smu_present) + return; + + dcn315_smu_send_msg_with_param(clk_mgr, + VBIOSSMC_MSG_SetVbiosDramAddrLow, addr_low); +} + +void dcn315_smu_transfer_dpm_table_smu_2_dram(struct clk_mgr_internal *clk_mgr) +{ + if (!clk_mgr->smu_present) + return; + + dcn315_smu_send_msg_with_param(clk_mgr, + VBIOSSMC_MSG_TransferTableSmu2Dram, TABLE_DPMCLOCKS); +} + +void dcn315_smu_transfer_wm_table_dram_2_smu(struct clk_mgr_internal *clk_mgr) +{ + if (!clk_mgr->smu_present) + return; + + dcn315_smu_send_msg_with_param(clk_mgr, + VBIOSSMC_MSG_TransferTableDram2Smu, TABLE_WATERMARKS); +} + +int dcn315_smu_get_dpref_clk(struct clk_mgr_internal *clk_mgr) +{ + int dprefclk_get_mhz = -1; + if (clk_mgr->smu_present) { + dprefclk_get_mhz = dcn315_smu_send_msg_with_param( + clk_mgr, + VBIOSSMC_MSG_GetDprefclkFreq, + 0); + } + return (dprefclk_get_mhz * 1000); +} + +int dcn315_smu_get_dtbclk(struct clk_mgr_internal *clk_mgr) +{ + int fclk_get_mhz = -1; + + if (clk_mgr->smu_present) { + fclk_get_mhz = dcn315_smu_send_msg_with_param( + clk_mgr, + VBIOSSMC_MSG_GetDtbclkFreq, + 0); + } + return (fclk_get_mhz * 1000); +} + +void dcn315_smu_set_dtbclk(struct clk_mgr_internal *clk_mgr, bool enable) +{ + if (!clk_mgr->smu_present) + return; + + dcn315_smu_send_msg_with_param( + clk_mgr, + VBIOSSMC_MSG_SetDtbClk, + enable); +} |