From bbb207f3dadd68ef4bd1cd7a214fa1d6de80ec3a Mon Sep 17 00:00:00 2001 From: Rex Zhu Date: Fri, 16 Oct 2015 15:02:04 +0800 Subject: [PATCH] drm/amdgpu/powerplay: program display gap for tonga. Implement displaygap programming for tonga. This is required for properly mclk switching. Signed-off-by: Rex Zhu Reviewed-by: Jammy Zhou Reviewed-by: Alex Deucher --- .../gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c | 91 +++++++++++++++++++ 1 file changed, 91 insertions(+) diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c index 1a02c7d557de..fe8b315ef4e8 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/tonga_hwmgr.c @@ -168,6 +168,13 @@ int tonga_add_voltage(struct pp_hwmgr *hwmgr, return 0; } +int tonga_notify_smc_display_change(struct pp_hwmgr *hwmgr, bool has_display) +{ + PPSMC_Msg msg = has_display? (PPSMC_Msg)PPSMC_HasDisplay : (PPSMC_Msg)PPSMC_NoDisplay; + + return (smum_send_msg_to_smc(hwmgr->smumgr, msg) == 0) ? 0 : -1; +} + uint8_t tonga_get_voltage_id(pp_atomctrl_voltage_table *voltage_table, uint32_t voltage) { @@ -4392,6 +4399,10 @@ int tonga_enable_dpm_tasks(struct pp_hwmgr *hwmgr) PP_ASSERT_WITH_CODE((0 == tmp_result), "Failed to populate initialize MC Reg table!", result = tmp_result); + tmp_result = tonga_notify_smc_display_change(hwmgr, false); + PP_ASSERT_WITH_CODE((0 == tmp_result), + "Failed to notify no display!", result = tmp_result); + /* enable SCLK control */ tmp_result = tonga_enable_sclk_control(hwmgr); PP_ASSERT_WITH_CODE((0 == tmp_result), @@ -5679,6 +5690,84 @@ static int tonga_set_power_state_tasks(struct pp_hwmgr *hwmgr, const void *input return result; } + +int tonga_notify_smc_display_config_after_ps_adjustment(struct pp_hwmgr *hwmgr) +{ + uint32_t num_active_displays = 0; + struct cgs_display_info info = {0}; + info.mode_info = NULL; + + cgs_get_active_displays_info(hwmgr->device, &info); + + num_active_displays = info.display_count; + + if (num_active_displays > 1) /* to do && (pHwMgr->pPECI->displayConfiguration.bMultiMonitorInSync != TRUE)) */ + tonga_notify_smc_display_change(hwmgr, false); + else + tonga_notify_smc_display_change(hwmgr, true); + + return 0; +} + +/** +* Programs the display gap +* +* @param hwmgr the address of the powerplay hardware manager. +* @return always OK +*/ +int tonga_program_display_gap(struct pp_hwmgr *hwmgr) +{ + struct tonga_hwmgr *data = (struct tonga_hwmgr *)(hwmgr->backend); + uint32_t num_active_displays = 0; + uint32_t display_gap = cgs_read_ind_register(hwmgr->device, CGS_IND_REG__SMC, ixCG_DISPLAY_GAP_CNTL); + uint32_t display_gap2; + uint32_t pre_vbi_time_in_us; + uint32_t frame_time_in_us; + uint32_t ref_clock; + uint32_t refresh_rate = 0; + struct cgs_display_info info = {0}; + struct cgs_mode_info mode_info; + + info.mode_info = &mode_info; + + cgs_get_active_displays_info(hwmgr->device, &info); + num_active_displays = info.display_count; + + display_gap = PHM_SET_FIELD(display_gap, CG_DISPLAY_GAP_CNTL, DISP_GAP, (num_active_displays > 0)? DISPLAY_GAP_VBLANK_OR_WM : DISPLAY_GAP_IGNORE); + cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC, ixCG_DISPLAY_GAP_CNTL, display_gap); + + ref_clock = mode_info.ref_clock; + refresh_rate = mode_info.refresh_rate; + + if(0 == refresh_rate) + refresh_rate = 60; + + frame_time_in_us = 1000000 / refresh_rate; + + pre_vbi_time_in_us = frame_time_in_us - 200 - mode_info.vblank_time_us; + display_gap2 = pre_vbi_time_in_us * (ref_clock / 100); + + cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC, ixCG_DISPLAY_GAP_CNTL2, display_gap2); + + cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC, data->soft_regs_start + offsetof(SMU72_SoftRegisters, PreVBlankGap), 0x64); + + cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC, data->soft_regs_start + offsetof(SMU72_SoftRegisters, VBlankTimeout), (frame_time_in_us - pre_vbi_time_in_us)); + + if (num_active_displays == 1) + tonga_notify_smc_display_change(hwmgr, true); + + return 0; +} + +int tonga_display_configuration_changed_task(struct pp_hwmgr *hwmgr) +{ + + tonga_program_display_gap(hwmgr); + + /* to do PhwTonga_CacUpdateDisplayConfiguration(pHwMgr); */ + return 0; +} + static const struct pp_hwmgr_func tonga_hwmgr_funcs = { .backend_init = &tonga_hwmgr_backend_init, .backend_fini = &tonga_hwmgr_backend_fini, @@ -5694,6 +5783,8 @@ static const struct pp_hwmgr_func tonga_hwmgr_funcs = { .get_pp_table_entry = tonga_get_pp_table_entry, .get_num_of_pp_table_entries = tonga_get_number_of_powerplay_table_entries, .print_current_perforce_level = tonga_print_current_perforce_level, + .notify_smc_display_config_after_ps_adjustment = tonga_notify_smc_display_config_after_ps_adjustment, + .display_config_changed = tonga_display_configuration_changed_task, }; int tonga_hwmgr_init(struct pp_hwmgr *hwmgr) -- 2.20.1