From: Alex Deucher Date: Fri, 6 Jun 2014 22:43:45 +0000 (-0400) Subject: drm/radeon/dpm: add support for SVI2 voltage for SI X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=636e2582658742b94e7620becce58f939996c961;p=linux-beck.git drm/radeon/dpm: add support for SVI2 voltage for SI Some newer boards use SVI2 for voltage control rather than GPIO. Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index 60c47f829122..d1592a0d602b 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -317,6 +317,9 @@ int radeon_atom_get_voltage_table(struct radeon_device *rdev, struct atom_voltage_table *voltage_table); bool radeon_atom_is_voltage_gpio(struct radeon_device *rdev, u8 voltage_type, u8 voltage_mode); +int radeon_atom_get_svi2_info(struct radeon_device *rdev, + u8 voltage_type, + u8 *svd_gpio_id, u8 *svc_gpio_id); void radeon_atom_update_memory_dll(struct radeon_device *rdev, u32 mem_clock); void radeon_atom_set_ac_timing(struct radeon_device *rdev, diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index 173f378428a9..fda1e4130af7 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -3397,6 +3397,50 @@ radeon_atom_is_voltage_gpio(struct radeon_device *rdev, return false; } +int radeon_atom_get_svi2_info(struct radeon_device *rdev, + u8 voltage_type, + u8 *svd_gpio_id, u8 *svc_gpio_id) +{ + int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo); + u8 frev, crev; + u16 data_offset, size; + union voltage_object_info *voltage_info; + union voltage_object *voltage_object = NULL; + + if (atom_parse_data_header(rdev->mode_info.atom_context, index, &size, + &frev, &crev, &data_offset)) { + voltage_info = (union voltage_object_info *) + (rdev->mode_info.atom_context->bios + data_offset); + + switch (frev) { + case 3: + switch (crev) { + case 1: + voltage_object = (union voltage_object *) + atom_lookup_voltage_object_v3(&voltage_info->v3, + voltage_type, + VOLTAGE_OBJ_SVID2); + if (voltage_object) { + *svd_gpio_id = voltage_object->v3.asSVID2Obj.ucSVDGpioId; + *svc_gpio_id = voltage_object->v3.asSVID2Obj.ucSVCGpioId; + } else { + return -EINVAL; + } + break; + default: + DRM_ERROR("unknown voltage object table\n"); + return -EINVAL; + } + break; + default: + DRM_ERROR("unknown voltage object table\n"); + return -EINVAL; + } + + } + return 0; +} + int radeon_atom_get_max_voltage(struct radeon_device *rdev, u8 voltage_type, u16 *max_voltage) { diff --git a/drivers/gpu/drm/radeon/si_dpm.c b/drivers/gpu/drm/radeon/si_dpm.c index 58918868f894..70e61ffeace2 100644 --- a/drivers/gpu/drm/radeon/si_dpm.c +++ b/drivers/gpu/drm/radeon/si_dpm.c @@ -3812,6 +3812,27 @@ void si_trim_voltage_table_to_fit_state_table(struct radeon_device *rdev, voltage_table->count = max_voltage_steps; } +static int si_get_svi2_voltage_table(struct radeon_device *rdev, + struct radeon_clock_voltage_dependency_table *voltage_dependency_table, + struct atom_voltage_table *voltage_table) +{ + u32 i; + + if (voltage_dependency_table == NULL) + return -EINVAL; + + voltage_table->mask_low = 0; + voltage_table->phase_delay = 0; + + voltage_table->count = voltage_dependency_table->count; + for (i = 0; i < voltage_table->count; i++) { + voltage_table->entries[i].value = voltage_dependency_table->entries[i].v; + voltage_table->entries[i].smio_low = 0; + } + + return 0; +} + static int si_construct_voltage_tables(struct radeon_device *rdev) { struct rv7xx_power_info *pi = rv770_get_pi(rdev); @@ -3819,15 +3840,25 @@ static int si_construct_voltage_tables(struct radeon_device *rdev) struct si_power_info *si_pi = si_get_pi(rdev); int ret; - ret = radeon_atom_get_voltage_table(rdev, VOLTAGE_TYPE_VDDC, - VOLTAGE_OBJ_GPIO_LUT, &eg_pi->vddc_voltage_table); - if (ret) - return ret; + if (pi->voltage_control) { + ret = radeon_atom_get_voltage_table(rdev, VOLTAGE_TYPE_VDDC, + VOLTAGE_OBJ_GPIO_LUT, &eg_pi->vddc_voltage_table); + if (ret) + return ret; - if (eg_pi->vddc_voltage_table.count > SISLANDS_MAX_NO_VREG_STEPS) - si_trim_voltage_table_to_fit_state_table(rdev, - SISLANDS_MAX_NO_VREG_STEPS, - &eg_pi->vddc_voltage_table); + if (eg_pi->vddc_voltage_table.count > SISLANDS_MAX_NO_VREG_STEPS) + si_trim_voltage_table_to_fit_state_table(rdev, + SISLANDS_MAX_NO_VREG_STEPS, + &eg_pi->vddc_voltage_table); + } else if (si_pi->voltage_control_svi2) { + ret = si_get_svi2_voltage_table(rdev, + &rdev->pm.dpm.dyn_state.vddc_dependency_on_mclk, + &eg_pi->vddc_voltage_table); + if (ret) + return ret; + } else { + return -EINVAL; + } if (eg_pi->vddci_control) { ret = radeon_atom_get_voltage_table(rdev, VOLTAGE_TYPE_VDDCI, @@ -3840,6 +3871,13 @@ static int si_construct_voltage_tables(struct radeon_device *rdev) SISLANDS_MAX_NO_VREG_STEPS, &eg_pi->vddci_voltage_table); } + if (si_pi->vddci_control_svi2) { + ret = si_get_svi2_voltage_table(rdev, + &rdev->pm.dpm.dyn_state.vddci_dependency_on_mclk, + &eg_pi->vddci_voltage_table); + if (ret) + return ret; + } if (pi->mvdd_control) { ret = radeon_atom_get_voltage_table(rdev, VOLTAGE_TYPE_MVDDC, @@ -3893,46 +3931,55 @@ static int si_populate_smc_voltage_tables(struct radeon_device *rdev, struct si_power_info *si_pi = si_get_pi(rdev); u8 i; - if (eg_pi->vddc_voltage_table.count) { - si_populate_smc_voltage_table(rdev, &eg_pi->vddc_voltage_table, table); - table->voltageMaskTable.lowMask[SISLANDS_SMC_VOLTAGEMASK_VDDC] = - cpu_to_be32(eg_pi->vddc_voltage_table.mask_low); - - for (i = 0; i < eg_pi->vddc_voltage_table.count; i++) { - if (pi->max_vddc_in_table <= eg_pi->vddc_voltage_table.entries[i].value) { - table->maxVDDCIndexInPPTable = i; - break; + if (si_pi->voltage_control_svi2) { + si_write_smc_soft_register(rdev, SI_SMC_SOFT_REGISTER_svi_rework_gpio_id_svc, + si_pi->svc_gpio_id); + si_write_smc_soft_register(rdev, SI_SMC_SOFT_REGISTER_svi_rework_gpio_id_svd, + si_pi->svd_gpio_id); + si_write_smc_soft_register(rdev, SI_SMC_SOFT_REGISTER_svi_rework_plat_type, + 2); + } else { + if (eg_pi->vddc_voltage_table.count) { + si_populate_smc_voltage_table(rdev, &eg_pi->vddc_voltage_table, table); + table->voltageMaskTable.lowMask[SISLANDS_SMC_VOLTAGEMASK_VDDC] = + cpu_to_be32(eg_pi->vddc_voltage_table.mask_low); + + for (i = 0; i < eg_pi->vddc_voltage_table.count; i++) { + if (pi->max_vddc_in_table <= eg_pi->vddc_voltage_table.entries[i].value) { + table->maxVDDCIndexInPPTable = i; + break; + } } } - } - if (eg_pi->vddci_voltage_table.count) { - si_populate_smc_voltage_table(rdev, &eg_pi->vddci_voltage_table, table); + if (eg_pi->vddci_voltage_table.count) { + si_populate_smc_voltage_table(rdev, &eg_pi->vddci_voltage_table, table); - table->voltageMaskTable.lowMask[SISLANDS_SMC_VOLTAGEMASK_VDDCI] = - cpu_to_be32(eg_pi->vddci_voltage_table.mask_low); - } + table->voltageMaskTable.lowMask[SISLANDS_SMC_VOLTAGEMASK_VDDCI] = + cpu_to_be32(eg_pi->vddci_voltage_table.mask_low); + } - if (si_pi->mvdd_voltage_table.count) { - si_populate_smc_voltage_table(rdev, &si_pi->mvdd_voltage_table, table); + if (si_pi->mvdd_voltage_table.count) { + si_populate_smc_voltage_table(rdev, &si_pi->mvdd_voltage_table, table); - table->voltageMaskTable.lowMask[SISLANDS_SMC_VOLTAGEMASK_MVDD] = - cpu_to_be32(si_pi->mvdd_voltage_table.mask_low); - } + table->voltageMaskTable.lowMask[SISLANDS_SMC_VOLTAGEMASK_MVDD] = + cpu_to_be32(si_pi->mvdd_voltage_table.mask_low); + } - if (si_pi->vddc_phase_shed_control) { - if (si_validate_phase_shedding_tables(rdev, &si_pi->vddc_phase_shed_table, - &rdev->pm.dpm.dyn_state.phase_shedding_limits_table)) { - si_populate_smc_voltage_table(rdev, &si_pi->vddc_phase_shed_table, table); + if (si_pi->vddc_phase_shed_control) { + if (si_validate_phase_shedding_tables(rdev, &si_pi->vddc_phase_shed_table, + &rdev->pm.dpm.dyn_state.phase_shedding_limits_table)) { + si_populate_smc_voltage_table(rdev, &si_pi->vddc_phase_shed_table, table); - table->phaseMaskTable.lowMask[SISLANDS_SMC_VOLTAGEMASK_VDDC] = - cpu_to_be32(si_pi->vddc_phase_shed_table.mask_low); + table->phaseMaskTable.lowMask[SISLANDS_SMC_VOLTAGEMASK_VDDC] = + cpu_to_be32(si_pi->vddc_phase_shed_table.mask_low); - si_write_smc_soft_register(rdev, SI_SMC_SOFT_REGISTER_phase_shedding_delay, - (u32)si_pi->vddc_phase_shed_table.phase_delay); - } else { - si_pi->vddc_phase_shed_control = false; + si_write_smc_soft_register(rdev, SI_SMC_SOFT_REGISTER_phase_shedding_delay, + (u32)si_pi->vddc_phase_shed_table.phase_delay); + } else { + si_pi->vddc_phase_shed_control = false; + } } } @@ -5798,16 +5845,17 @@ int si_dpm_enable(struct radeon_device *rdev) { struct rv7xx_power_info *pi = rv770_get_pi(rdev); struct evergreen_power_info *eg_pi = evergreen_get_pi(rdev); + struct si_power_info *si_pi = si_get_pi(rdev); struct radeon_ps *boot_ps = rdev->pm.dpm.boot_ps; int ret; if (si_is_smc_running(rdev)) return -EINVAL; - if (pi->voltage_control) + if (pi->voltage_control || si_pi->voltage_control_svi2) si_enable_voltage_control(rdev, true); if (pi->mvdd_control) si_get_mvdd_configuration(rdev); - if (pi->voltage_control) { + if (pi->voltage_control || si_pi->voltage_control_svi2) { ret = si_construct_voltage_tables(rdev); if (ret) { DRM_ERROR("si_construct_voltage_tables failed\n"); @@ -6406,16 +6454,32 @@ int si_dpm_init(struct radeon_device *rdev) ni_pi->mclk_rtt_mode_threshold = eg_pi->mclk_edc_wr_enable_threshold; pi->voltage_control = - radeon_atom_is_voltage_gpio(rdev, SET_VOLTAGE_TYPE_ASIC_VDDC, VOLTAGE_OBJ_GPIO_LUT); + radeon_atom_is_voltage_gpio(rdev, SET_VOLTAGE_TYPE_ASIC_VDDC, + VOLTAGE_OBJ_GPIO_LUT); + if (!pi->voltage_control) { + si_pi->voltage_control_svi2 = + radeon_atom_is_voltage_gpio(rdev, SET_VOLTAGE_TYPE_ASIC_VDDC, + VOLTAGE_OBJ_SVID2); + if (si_pi->voltage_control_svi2) + radeon_atom_get_svi2_info(rdev, SET_VOLTAGE_TYPE_ASIC_VDDC, + &si_pi->svd_gpio_id, &si_pi->svc_gpio_id); + } pi->mvdd_control = - radeon_atom_is_voltage_gpio(rdev, SET_VOLTAGE_TYPE_ASIC_MVDDC, VOLTAGE_OBJ_GPIO_LUT); + radeon_atom_is_voltage_gpio(rdev, SET_VOLTAGE_TYPE_ASIC_MVDDC, + VOLTAGE_OBJ_GPIO_LUT); eg_pi->vddci_control = - radeon_atom_is_voltage_gpio(rdev, SET_VOLTAGE_TYPE_ASIC_VDDCI, VOLTAGE_OBJ_GPIO_LUT); + radeon_atom_is_voltage_gpio(rdev, SET_VOLTAGE_TYPE_ASIC_VDDCI, + VOLTAGE_OBJ_GPIO_LUT); + if (!eg_pi->vddci_control) + si_pi->vddci_control_svi2 = + radeon_atom_is_voltage_gpio(rdev, SET_VOLTAGE_TYPE_ASIC_VDDCI, + VOLTAGE_OBJ_SVID2); si_pi->vddc_phase_shed_control = - radeon_atom_is_voltage_gpio(rdev, SET_VOLTAGE_TYPE_ASIC_VDDC, VOLTAGE_OBJ_PHASE_LUT); + radeon_atom_is_voltage_gpio(rdev, SET_VOLTAGE_TYPE_ASIC_VDDC, + VOLTAGE_OBJ_PHASE_LUT); rv770_get_engine_memory_ss(rdev); diff --git a/drivers/gpu/drm/radeon/si_dpm.h b/drivers/gpu/drm/radeon/si_dpm.h index 4ce5032cdf49..8b5c06a0832d 100644 --- a/drivers/gpu/drm/radeon/si_dpm.h +++ b/drivers/gpu/drm/radeon/si_dpm.h @@ -170,6 +170,8 @@ struct si_power_info { bool vddc_phase_shed_control; bool pspp_notify_required; bool sclk_deep_sleep_above_low; + bool voltage_control_svi2; + bool vddci_control_svi2; /* smc offsets */ u32 sram_end; u32 state_table_start; @@ -192,6 +194,9 @@ struct si_power_info { SMC_SIslands_MCRegisters smc_mc_reg_table; SISLANDS_SMC_STATETABLE smc_statetable; PP_SIslands_PAPMParameters papm_parm; + /* SVI2 */ + u8 svd_gpio_id; + u8 svc_gpio_id; }; #define SISLANDS_INITIAL_STATE_ARB_INDEX 0 diff --git a/drivers/gpu/drm/radeon/sislands_smc.h b/drivers/gpu/drm/radeon/sislands_smc.h index 10e945a49479..623a0b1e2d9d 100644 --- a/drivers/gpu/drm/radeon/sislands_smc.h +++ b/drivers/gpu/drm/radeon/sislands_smc.h @@ -241,6 +241,9 @@ typedef struct SISLANDS_SMC_STATETABLE SISLANDS_SMC_STATETABLE; #define SI_SMC_SOFT_REGISTER_non_ulv_pcie_link_width 0xF4 #define SI_SMC_SOFT_REGISTER_tdr_is_about_to_happen 0xFC #define SI_SMC_SOFT_REGISTER_vr_hot_gpio 0x100 +#define SI_SMC_SOFT_REGISTER_svi_rework_plat_type 0x118 +#define SI_SMC_SOFT_REGISTER_svi_rework_gpio_id_svd 0x11c +#define SI_SMC_SOFT_REGISTER_svi_rework_gpio_id_svc 0x120 #define SMC_SISLANDS_LKGE_LUT_NUM_OF_TEMP_ENTRIES 16 #define SMC_SISLANDS_LKGE_LUT_NUM_OF_VOLT_ENTRIES 32