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path: root/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_smu.c
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Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_smu.c')
-rw-r--r--drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_smu.c471
1 files changed, 471 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_smu.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_smu.c
new file mode 100644
index 000000000000..b6b8c3ca1572
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_smu.c
@@ -0,0 +1,471 @@
+/*
+ * Copyright 2022 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 "dcn35_smu.h"
+
+#include "mp/mp_14_0_0_offset.h"
+#include "mp/mp_14_0_0_sh_mask.h"
+
+/* TODO: Use the real headers when they're correct */
+#define MP1_BASE__INST0_SEG0 0x00016000
+#define MP1_BASE__INST0_SEG1 0x0243FC00
+#define MP1_BASE__INST0_SEG2 0x00DC0000
+#define MP1_BASE__INST0_SEG3 0x00E00000
+#define MP1_BASE__INST0_SEG4 0x00E40000
+#define MP1_BASE__INST0_SEG5 0
+
+#ifdef BASE_INNER
+#undef BASE_INNER
+#endif
+
+#define BASE_INNER(seg) MP1_BASE__INST0_SEG ## seg
+
+#define BASE(seg) BASE_INNER(seg)
+
+#define REG(reg_name) (BASE(reg##reg_name##_BASE_IDX) + reg##reg_name)
+
+#define FN(reg_name, field) \
+ FD(reg_name##__##field)
+
+#include "logger_types.h"
+#undef DC_LOGGER
+#define DC_LOGGER \
+ CTX->logger
+#define smu_print(str, ...) {DC_LOG_SMU(str, ##__VA_ARGS__); }
+
+#define VBIOSSMC_MSG_TestMessage 0x1
+#define VBIOSSMC_MSG_GetSmuVersion 0x2
+#define VBIOSSMC_MSG_PowerUpGfx 0x3
+#define VBIOSSMC_MSG_SetDispclkFreq 0x4
+#define VBIOSSMC_MSG_SetDprefclkFreq 0x5 //Not used. DPRef is constant
+#define VBIOSSMC_MSG_SetDppclkFreq 0x6
+#define VBIOSSMC_MSG_SetHardMinDcfclkByFreq 0x7
+#define VBIOSSMC_MSG_SetMinDeepSleepDcfclk 0x8
+#define VBIOSSMC_MSG_SetPhyclkVoltageByFreq 0x9 //Keep it in case VMIN dees not support phy clk
+#define VBIOSSMC_MSG_GetFclkFrequency 0xA
+#define VBIOSSMC_MSG_SetDisplayCount 0xB //Not used anymore
+#define VBIOSSMC_MSG_EnableTmdp48MHzRefclkPwrDown 0xC //To ask PMFW turn off TMDP 48MHz refclk during display off to save power
+#define VBIOSSMC_MSG_UpdatePmeRestore 0xD
+#define VBIOSSMC_MSG_SetVbiosDramAddrHigh 0xE //Used for WM table txfr
+#define VBIOSSMC_MSG_SetVbiosDramAddrLow 0xF
+#define VBIOSSMC_MSG_TransferTableSmu2Dram 0x10
+#define VBIOSSMC_MSG_TransferTableDram2Smu 0x11
+#define VBIOSSMC_MSG_SetDisplayIdleOptimizations 0x12
+#define VBIOSSMC_MSG_GetDprefclkFreq 0x13
+#define VBIOSSMC_MSG_GetDtbclkFreq 0x14
+#define VBIOSSMC_MSG_AllowZstatesEntry 0x15
+#define VBIOSSMC_MSG_DisallowZstatesEntry 0x16
+#define VBIOSSMC_MSG_SetDtbClk 0x17
+#define VBIOSSMC_MSG_DispPsrEntry 0x18 ///< Display PSR entry, DMU
+#define VBIOSSMC_MSG_DispPsrExit 0x19 ///< Display PSR exit, DMU
+#define VBIOSSMC_MSG_DisableLSdma 0x1A ///< Disable LSDMA; only sent by VBIOS
+#define VBIOSSMC_MSG_DpControllerPhyStatus 0x1B ///< Inform PMFW about the pre conditions for turning SLDO2 on/off . bit[0]==1 precondition is met, bit[1-2] are for DPPHY number
+#define VBIOSSMC_MSG_QueryIPS2Support 0x1C ///< Return 1: support; else not supported
+#define VBIOSSMC_Message_Count 0x1D
+
+#define VBIOSSMC_Status_BUSY 0x0
+#define VBIOSSMC_Result_OK 0x1
+#define VBIOSSMC_Result_Failed 0xFF
+#define VBIOSSMC_Result_UnknownCmd 0xFE
+#define VBIOSSMC_Result_CmdRejectedPrereq 0xFD
+#define VBIOSSMC_Result_CmdRejectedBusy 0xFC
+
+/*
+ * 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 dcn35_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_91);
+ 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 dcn35_smu_send_msg_with_param(struct clk_mgr_internal *clk_mgr,
+ unsigned int msg_id,
+ unsigned int param)
+{
+ uint32_t result;
+
+ result = dcn35_smu_wait_for_response(clk_mgr, 10, 2000000);
+ ASSERT(result == VBIOSSMC_Result_OK);
+
+ if (result != VBIOSSMC_Result_OK) {
+ DC_LOG_WARNING("SMU response after wait: %d, msg id = %d\n", result, msg_id);
+
+ if (result == VBIOSSMC_Status_BUSY)
+ return -1;
+ }
+
+ /* First clear response register */
+ REG_WRITE(MP1_SMN_C2PMSG_91, VBIOSSMC_Status_BUSY);
+
+ /* Set the parameter register for the SMU message, unit is Mhz */
+ REG_WRITE(MP1_SMN_C2PMSG_83, param);
+
+ /* Trigger the message transaction by writing the message ID */
+ REG_WRITE(MP1_SMN_C2PMSG_67, msg_id);
+
+ result = dcn35_smu_wait_for_response(clk_mgr, 10, 2000000);
+
+ if (result == VBIOSSMC_Result_Failed) {
+ if (msg_id == VBIOSSMC_MSG_TransferTableDram2Smu &&
+ param == TABLE_WATERMARKS)
+ DC_LOG_WARNING("Watermarks table not configured properly by SMU");
+ else
+ ASSERT(0);
+ REG_WRITE(MP1_SMN_C2PMSG_91, VBIOSSMC_Result_OK);
+ DC_LOG_WARNING("SMU response after wait: %d, msg id = %d\n", result, msg_id);
+ return -1;
+ }
+
+ if (IS_SMU_TIMEOUT(result)) {
+ ASSERT(0);
+ result = dcn35_smu_wait_for_response(clk_mgr, 10, 2000000);
+ //dm_helpers_smu_timeout(CTX, msg_id, param, 10 * 200000);
+ DC_LOG_WARNING("SMU response after wait: %d, msg id = %d\n", result, msg_id);
+ }
+
+ return REG_READ(MP1_SMN_C2PMSG_83);
+}
+
+int dcn35_smu_get_smu_version(struct clk_mgr_internal *clk_mgr)
+{
+ return dcn35_smu_send_msg_with_param(
+ clk_mgr,
+ VBIOSSMC_MSG_GetSmuVersion,
+ 0);
+}
+
+
+int dcn35_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 = dcn35_smu_send_msg_with_param(
+ clk_mgr,
+ VBIOSSMC_MSG_SetDispclkFreq,
+ khz_to_mhz_ceil(requested_dispclk_khz));
+
+ smu_print("requested_dispclk_khz = %d, actual_dispclk_set_mhz: %d\n", requested_dispclk_khz, actual_dispclk_set_mhz);
+ return actual_dispclk_set_mhz * 1000;
+}
+
+int dcn35_smu_set_dprefclk(struct clk_mgr_internal *clk_mgr)
+{
+ int actual_dprefclk_set_mhz = -1;
+
+ if (!clk_mgr->smu_present)
+ return clk_mgr->base.dprefclk_khz;
+
+ actual_dprefclk_set_mhz = dcn35_smu_send_msg_with_param(
+ clk_mgr,
+ VBIOSSMC_MSG_SetDprefclkFreq,
+ khz_to_mhz_ceil(clk_mgr->base.dprefclk_khz));
+
+ /* TODO: add code for programing DP DTO, currently this is down by command table */
+
+ return actual_dprefclk_set_mhz * 1000;
+}
+
+int dcn35_smu_set_hard_min_dcfclk(struct clk_mgr_internal *clk_mgr, int requested_dcfclk_khz)
+{
+ int actual_dcfclk_set_mhz = -1;
+
+ if (!clk_mgr->smu_present)
+ return requested_dcfclk_khz;
+
+ actual_dcfclk_set_mhz = dcn35_smu_send_msg_with_param(
+ clk_mgr,
+ VBIOSSMC_MSG_SetHardMinDcfclkByFreq,
+ khz_to_mhz_ceil(requested_dcfclk_khz));
+
+ smu_print("requested_dcfclk_khz = %d, actual_dcfclk_set_mhz: %d\n", requested_dcfclk_khz, actual_dcfclk_set_mhz);
+
+ return actual_dcfclk_set_mhz * 1000;
+}
+
+int dcn35_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->smu_present)
+ return requested_min_ds_dcfclk_khz;
+
+ actual_min_ds_dcfclk_mhz = dcn35_smu_send_msg_with_param(
+ clk_mgr,
+ VBIOSSMC_MSG_SetMinDeepSleepDcfclk,
+ khz_to_mhz_ceil(requested_min_ds_dcfclk_khz));
+
+ smu_print("requested_min_ds_dcfclk_khz = %d, actual_min_ds_dcfclk_mhz: %d\n", requested_min_ds_dcfclk_khz, actual_min_ds_dcfclk_mhz);
+
+ return actual_min_ds_dcfclk_mhz * 1000;
+}
+
+int dcn35_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 = dcn35_smu_send_msg_with_param(
+ clk_mgr,
+ VBIOSSMC_MSG_SetDppclkFreq,
+ khz_to_mhz_ceil(requested_dpp_khz));
+
+ smu_print("requested_dpp_khz = %d, actual_dppclk_set_mhz: %d\n", requested_dpp_khz, actual_dppclk_set_mhz);
+
+ return actual_dppclk_set_mhz * 1000;
+}
+
+void dcn35_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.
+ dcn35_smu_send_msg_with_param(
+ clk_mgr,
+ VBIOSSMC_MSG_SetDisplayIdleOptimizations,
+ idle_info);
+ smu_print("VBIOSSMC_MSG_SetDisplayIdleOptimizations idle_info = %d\n", idle_info);
+}
+
+void dcn35_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;
+ }
+
+ dcn35_smu_send_msg_with_param(
+ clk_mgr,
+ VBIOSSMC_MSG_SetDisplayIdleOptimizations,
+ idle_info.data);
+ smu_print("dcn35_smu_enable_phy_refclk_pwrdwn = %d\n", enable ? 1 : 0);
+}
+
+void dcn35_smu_enable_pme_wa(struct clk_mgr_internal *clk_mgr)
+{
+ if (!clk_mgr->smu_present)
+ return;
+
+ dcn35_smu_send_msg_with_param(
+ clk_mgr,
+ VBIOSSMC_MSG_UpdatePmeRestore,
+ 0);
+}
+
+void dcn35_smu_set_dram_addr_high(struct clk_mgr_internal *clk_mgr, uint32_t addr_high)
+{
+ if (!clk_mgr->smu_present)
+ return;
+
+ dcn35_smu_send_msg_with_param(clk_mgr,
+ VBIOSSMC_MSG_SetVbiosDramAddrHigh, addr_high);
+}
+
+void dcn35_smu_set_dram_addr_low(struct clk_mgr_internal *clk_mgr, uint32_t addr_low)
+{
+ if (!clk_mgr->smu_present)
+ return;
+
+ dcn35_smu_send_msg_with_param(clk_mgr,
+ VBIOSSMC_MSG_SetVbiosDramAddrLow, addr_low);
+}
+
+void dcn35_smu_transfer_dpm_table_smu_2_dram(struct clk_mgr_internal *clk_mgr)
+{
+ if (!clk_mgr->smu_present)
+ return;
+
+ dcn35_smu_send_msg_with_param(clk_mgr,
+ VBIOSSMC_MSG_TransferTableSmu2Dram, TABLE_DPMCLOCKS);
+}
+
+void dcn35_smu_transfer_wm_table_dram_2_smu(struct clk_mgr_internal *clk_mgr)
+{
+ if (!clk_mgr->smu_present)
+ return;
+
+ dcn35_smu_send_msg_with_param(clk_mgr,
+ VBIOSSMC_MSG_TransferTableDram2Smu, TABLE_WATERMARKS);
+}
+
+void dcn35_smu_set_zstate_support(struct clk_mgr_internal *clk_mgr, enum dcn_zstate_support_state support)
+{
+ unsigned int msg_id, param;
+
+ if (!clk_mgr->smu_present)
+ return;
+
+ switch (support) {
+
+ case DCN_ZSTATE_SUPPORT_ALLOW:
+ msg_id = VBIOSSMC_MSG_AllowZstatesEntry;
+ param = (1 << 10) | (1 << 9) | (1 << 8);
+ break;
+
+ case DCN_ZSTATE_SUPPORT_DISALLOW:
+ msg_id = VBIOSSMC_MSG_AllowZstatesEntry;
+ param = 0;
+ break;
+
+
+ case DCN_ZSTATE_SUPPORT_ALLOW_Z10_ONLY:
+ msg_id = VBIOSSMC_MSG_AllowZstatesEntry;
+ param = (1 << 10);
+ break;
+
+ case DCN_ZSTATE_SUPPORT_ALLOW_Z8_Z10_ONLY:
+ msg_id = VBIOSSMC_MSG_AllowZstatesEntry;
+ param = (1 << 10) | (1 << 8);
+ break;
+
+ case DCN_ZSTATE_SUPPORT_ALLOW_Z8_ONLY:
+ msg_id = VBIOSSMC_MSG_AllowZstatesEntry;
+ param = (1 << 8);
+ break;
+
+ default: //DCN_ZSTATE_SUPPORT_UNKNOWN
+ msg_id = VBIOSSMC_MSG_AllowZstatesEntry;
+ param = 0;
+ break;
+ }
+
+
+ dcn35_smu_send_msg_with_param(
+ clk_mgr,
+ msg_id,
+ param);
+ smu_print("dcn35_smu_set_zstate_support msg_id = %d, param = %d\n", msg_id, param);
+}
+
+int dcn35_smu_get_dprefclk(struct clk_mgr_internal *clk_mgr)
+{
+ int dprefclk;
+
+ if (!clk_mgr->smu_present)
+ return 0;
+
+ dprefclk = dcn35_smu_send_msg_with_param(clk_mgr,
+ VBIOSSMC_MSG_GetDprefclkFreq,
+ 0);
+
+ smu_print("dcn35_smu_get_DPREF clk = %d mhz\n", dprefclk);
+ return dprefclk * 1000;
+}
+
+int dcn35_smu_get_dtbclk(struct clk_mgr_internal *clk_mgr)
+{
+ int dtbclk;
+
+ if (!clk_mgr->smu_present)
+ return 0;
+
+ dtbclk = dcn35_smu_send_msg_with_param(clk_mgr,
+ VBIOSSMC_MSG_GetDtbclkFreq,
+ 0);
+
+ smu_print("dcn35_smu_get_dtbclk = %d mhz\n", dtbclk);
+ return dtbclk * 1000;
+}
+/* Arg = 1: Turn DTB on; 0: Turn DTB CLK OFF. when it is on, it is 600MHZ */
+void dcn35_smu_set_dtbclk(struct clk_mgr_internal *clk_mgr, bool enable)
+{
+ if (!clk_mgr->smu_present)
+ return;
+
+ dcn35_smu_send_msg_with_param(
+ clk_mgr,
+ VBIOSSMC_MSG_SetDtbClk,
+ enable);
+ smu_print("dcn35_smu_set_dtbclk = %d \n", enable ? 1 : 0);
+}
+
+void dcn35_vbios_smu_enable_48mhz_tmdp_refclk_pwrdwn(struct clk_mgr_internal *clk_mgr, bool enable)
+{
+ dcn35_smu_send_msg_with_param(
+ clk_mgr,
+ VBIOSSMC_MSG_EnableTmdp48MHzRefclkPwrDown,
+ enable);
+}
+
+int dcn35_smu_exit_low_power_state(struct clk_mgr_internal *clk_mgr)
+{
+ return dcn35_smu_send_msg_with_param(
+ clk_mgr,
+ VBIOSSMC_MSG_DispPsrExit,
+ 0);
+}
+
+int dcn35_smu_get_ips_supported(struct clk_mgr_internal *clk_mgr)
+{
+ return dcn35_smu_send_msg_with_param(
+ clk_mgr,
+ VBIOSSMC_MSG_QueryIPS2Support,
+ 0);
+}
+
+void dcn35_smu_write_ips_scratch(struct clk_mgr_internal *clk_mgr, uint32_t param)
+{
+ REG_WRITE(MP1_SMN_C2PMSG_71, param);
+}
+
+uint32_t dcn35_smu_read_ips_scratch(struct clk_mgr_internal *clk_mgr)
+{
+ return REG_READ(MP1_SMN_C2PMSG_71);
+}
generated by cgit (git 2.34.1) at 2024-06-09 16:46:28 +0000