diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.c | 955 |
1 files changed, 955 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.c new file mode 100644 index 000000000000..7b7f4aba60c0 --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.c @@ -0,0 +1,955 @@ +/* + * Copyright 2011 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: Alex Deucher + */ + +#include "drmP.h" +#include "amdgpu.h" +#include "amdgpu_atombios.h" +#include "amdgpu_i2c.h" +#include "amdgpu_dpm.h" +#include "atom.h" + +void amdgpu_dpm_print_class_info(u32 class, u32 class2) +{ + printk("\tui class: "); + switch (class & ATOM_PPLIB_CLASSIFICATION_UI_MASK) { + case ATOM_PPLIB_CLASSIFICATION_UI_NONE: + default: + printk("none\n"); + break; + case ATOM_PPLIB_CLASSIFICATION_UI_BATTERY: + printk("battery\n"); + break; + case ATOM_PPLIB_CLASSIFICATION_UI_BALANCED: + printk("balanced\n"); + break; + case ATOM_PPLIB_CLASSIFICATION_UI_PERFORMANCE: + printk("performance\n"); + break; + } + printk("\tinternal class: "); + if (((class & ~ATOM_PPLIB_CLASSIFICATION_UI_MASK) == 0) && + (class2 == 0)) + printk("none"); + else { + if (class & ATOM_PPLIB_CLASSIFICATION_BOOT) + printk("boot "); + if (class & ATOM_PPLIB_CLASSIFICATION_THERMAL) + printk("thermal "); + if (class & ATOM_PPLIB_CLASSIFICATION_LIMITEDPOWERSOURCE) + printk("limited_pwr "); + if (class & ATOM_PPLIB_CLASSIFICATION_REST) + printk("rest "); + if (class & ATOM_PPLIB_CLASSIFICATION_FORCED) + printk("forced "); + if (class & ATOM_PPLIB_CLASSIFICATION_3DPERFORMANCE) + printk("3d_perf "); + if (class & ATOM_PPLIB_CLASSIFICATION_OVERDRIVETEMPLATE) + printk("ovrdrv "); + if (class & ATOM_PPLIB_CLASSIFICATION_UVDSTATE) + printk("uvd "); + if (class & ATOM_PPLIB_CLASSIFICATION_3DLOW) + printk("3d_low "); + if (class & ATOM_PPLIB_CLASSIFICATION_ACPI) + printk("acpi "); + if (class & ATOM_PPLIB_CLASSIFICATION_HD2STATE) + printk("uvd_hd2 "); + if (class & ATOM_PPLIB_CLASSIFICATION_HDSTATE) + printk("uvd_hd "); + if (class & ATOM_PPLIB_CLASSIFICATION_SDSTATE) + printk("uvd_sd "); + if (class2 & ATOM_PPLIB_CLASSIFICATION2_LIMITEDPOWERSOURCE_2) + printk("limited_pwr2 "); + if (class2 & ATOM_PPLIB_CLASSIFICATION2_ULV) + printk("ulv "); + if (class2 & ATOM_PPLIB_CLASSIFICATION2_MVC) + printk("uvd_mvc "); + } + printk("\n"); +} + +void amdgpu_dpm_print_cap_info(u32 caps) +{ + printk("\tcaps: "); + if (caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY) + printk("single_disp "); + if (caps & ATOM_PPLIB_SUPPORTS_VIDEO_PLAYBACK) + printk("video "); + if (caps & ATOM_PPLIB_DISALLOW_ON_DC) + printk("no_dc "); + printk("\n"); +} + +void amdgpu_dpm_print_ps_status(struct amdgpu_device *adev, + struct amdgpu_ps *rps) +{ + printk("\tstatus: "); + if (rps == adev->pm.dpm.current_ps) + printk("c "); + if (rps == adev->pm.dpm.requested_ps) + printk("r "); + if (rps == adev->pm.dpm.boot_ps) + printk("b "); + printk("\n"); +} + +u32 amdgpu_dpm_get_vblank_time(struct amdgpu_device *adev) +{ + struct drm_device *dev = adev->ddev; + struct drm_crtc *crtc; + struct amdgpu_crtc *amdgpu_crtc; + u32 line_time_us, vblank_lines; + u32 vblank_time_us = 0xffffffff; /* if the displays are off, vblank time is max */ + + if (adev->mode_info.num_crtc && adev->mode_info.mode_config_initialized) { + list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { + amdgpu_crtc = to_amdgpu_crtc(crtc); + if (crtc->enabled && amdgpu_crtc->enabled && amdgpu_crtc->hw_mode.clock) { + line_time_us = (amdgpu_crtc->hw_mode.crtc_htotal * 1000) / + amdgpu_crtc->hw_mode.clock; + vblank_lines = amdgpu_crtc->hw_mode.crtc_vblank_end - + amdgpu_crtc->hw_mode.crtc_vdisplay + + (amdgpu_crtc->v_border * 2); + vblank_time_us = vblank_lines * line_time_us; + break; + } + } + } + + return vblank_time_us; +} + +u32 amdgpu_dpm_get_vrefresh(struct amdgpu_device *adev) +{ + struct drm_device *dev = adev->ddev; + struct drm_crtc *crtc; + struct amdgpu_crtc *amdgpu_crtc; + u32 vrefresh = 0; + + if (adev->mode_info.num_crtc && adev->mode_info.mode_config_initialized) { + list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { + amdgpu_crtc = to_amdgpu_crtc(crtc); + if (crtc->enabled && amdgpu_crtc->enabled && amdgpu_crtc->hw_mode.clock) { + vrefresh = amdgpu_crtc->hw_mode.vrefresh; + break; + } + } + } + + return vrefresh; +} + +void amdgpu_calculate_u_and_p(u32 i, u32 r_c, u32 p_b, + u32 *p, u32 *u) +{ + u32 b_c = 0; + u32 i_c; + u32 tmp; + + i_c = (i * r_c) / 100; + tmp = i_c >> p_b; + + while (tmp) { + b_c++; + tmp >>= 1; + } + + *u = (b_c + 1) / 2; + *p = i_c / (1 << (2 * (*u))); +} + +int amdgpu_calculate_at(u32 t, u32 h, u32 fh, u32 fl, u32 *tl, u32 *th) +{ + u32 k, a, ah, al; + u32 t1; + + if ((fl == 0) || (fh == 0) || (fl > fh)) + return -EINVAL; + + k = (100 * fh) / fl; + t1 = (t * (k - 100)); + a = (1000 * (100 * h + t1)) / (10000 + (t1 / 100)); + a = (a + 5) / 10; + ah = ((a * t) + 5000) / 10000; + al = a - ah; + + *th = t - ah; + *tl = t + al; + + return 0; +} + +bool amdgpu_is_uvd_state(u32 class, u32 class2) +{ + if (class & ATOM_PPLIB_CLASSIFICATION_UVDSTATE) + return true; + if (class & ATOM_PPLIB_CLASSIFICATION_HD2STATE) + return true; + if (class & ATOM_PPLIB_CLASSIFICATION_HDSTATE) + return true; + if (class & ATOM_PPLIB_CLASSIFICATION_SDSTATE) + return true; + if (class2 & ATOM_PPLIB_CLASSIFICATION2_MVC) + return true; + return false; +} + +bool amdgpu_is_internal_thermal_sensor(enum amdgpu_int_thermal_type sensor) +{ + switch (sensor) { + case THERMAL_TYPE_RV6XX: + case THERMAL_TYPE_RV770: + case THERMAL_TYPE_EVERGREEN: + case THERMAL_TYPE_SUMO: + case THERMAL_TYPE_NI: + case THERMAL_TYPE_SI: + case THERMAL_TYPE_CI: + case THERMAL_TYPE_KV: + return true; + case THERMAL_TYPE_ADT7473_WITH_INTERNAL: + case THERMAL_TYPE_EMC2103_WITH_INTERNAL: + return false; /* need special handling */ + case THERMAL_TYPE_NONE: + case THERMAL_TYPE_EXTERNAL: + case THERMAL_TYPE_EXTERNAL_GPIO: + default: + return false; + } +} + +union power_info { + struct _ATOM_POWERPLAY_INFO info; + struct _ATOM_POWERPLAY_INFO_V2 info_2; + struct _ATOM_POWERPLAY_INFO_V3 info_3; + struct _ATOM_PPLIB_POWERPLAYTABLE pplib; + struct _ATOM_PPLIB_POWERPLAYTABLE2 pplib2; + struct _ATOM_PPLIB_POWERPLAYTABLE3 pplib3; + struct _ATOM_PPLIB_POWERPLAYTABLE4 pplib4; + struct _ATOM_PPLIB_POWERPLAYTABLE5 pplib5; +}; + +union fan_info { + struct _ATOM_PPLIB_FANTABLE fan; + struct _ATOM_PPLIB_FANTABLE2 fan2; + struct _ATOM_PPLIB_FANTABLE3 fan3; +}; + +static int amdgpu_parse_clk_voltage_dep_table(struct amdgpu_clock_voltage_dependency_table *amdgpu_table, + ATOM_PPLIB_Clock_Voltage_Dependency_Table *atom_table) +{ + u32 size = atom_table->ucNumEntries * + sizeof(struct amdgpu_clock_voltage_dependency_entry); + int i; + ATOM_PPLIB_Clock_Voltage_Dependency_Record *entry; + + amdgpu_table->entries = kzalloc(size, GFP_KERNEL); + if (!amdgpu_table->entries) + return -ENOMEM; + + entry = &atom_table->entries[0]; + for (i = 0; i < atom_table->ucNumEntries; i++) { + amdgpu_table->entries[i].clk = le16_to_cpu(entry->usClockLow) | + (entry->ucClockHigh << 16); + amdgpu_table->entries[i].v = le16_to_cpu(entry->usVoltage); + entry = (ATOM_PPLIB_Clock_Voltage_Dependency_Record *) + ((u8 *)entry + sizeof(ATOM_PPLIB_Clock_Voltage_Dependency_Record)); + } + amdgpu_table->count = atom_table->ucNumEntries; + + return 0; +} + +int amdgpu_get_platform_caps(struct amdgpu_device *adev) +{ + struct amdgpu_mode_info *mode_info = &adev->mode_info; + union power_info *power_info; + int index = GetIndexIntoMasterTable(DATA, PowerPlayInfo); + u16 data_offset; + u8 frev, crev; + + if (!amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL, + &frev, &crev, &data_offset)) + return -EINVAL; + power_info = (union power_info *)(mode_info->atom_context->bios + data_offset); + + adev->pm.dpm.platform_caps = le32_to_cpu(power_info->pplib.ulPlatformCaps); + adev->pm.dpm.backbias_response_time = le16_to_cpu(power_info->pplib.usBackbiasTime); + adev->pm.dpm.voltage_response_time = le16_to_cpu(power_info->pplib.usVoltageTime); + + return 0; +} + +/* sizeof(ATOM_PPLIB_EXTENDEDHEADER) */ +#define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V2 12 +#define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V3 14 +#define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V4 16 +#define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V5 18 +#define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V6 20 +#define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V7 22 +#define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V8 24 +#define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V9 26 + +int amdgpu_parse_extended_power_table(struct amdgpu_device *adev) +{ + struct amdgpu_mode_info *mode_info = &adev->mode_info; + union power_info *power_info; + union fan_info *fan_info; + ATOM_PPLIB_Clock_Voltage_Dependency_Table *dep_table; + int index = GetIndexIntoMasterTable(DATA, PowerPlayInfo); + u16 data_offset; + u8 frev, crev; + int ret, i; + + if (!amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL, + &frev, &crev, &data_offset)) + return -EINVAL; + power_info = (union power_info *)(mode_info->atom_context->bios + data_offset); + + /* fan table */ + if (le16_to_cpu(power_info->pplib.usTableSize) >= + sizeof(struct _ATOM_PPLIB_POWERPLAYTABLE3)) { + if (power_info->pplib3.usFanTableOffset) { + fan_info = (union fan_info *)(mode_info->atom_context->bios + data_offset + + le16_to_cpu(power_info->pplib3.usFanTableOffset)); + adev->pm.dpm.fan.t_hyst = fan_info->fan.ucTHyst; + adev->pm.dpm.fan.t_min = le16_to_cpu(fan_info->fan.usTMin); + adev->pm.dpm.fan.t_med = le16_to_cpu(fan_info->fan.usTMed); + adev->pm.dpm.fan.t_high = le16_to_cpu(fan_info->fan.usTHigh); + adev->pm.dpm.fan.pwm_min = le16_to_cpu(fan_info->fan.usPWMMin); + adev->pm.dpm.fan.pwm_med = le16_to_cpu(fan_info->fan.usPWMMed); + adev->pm.dpm.fan.pwm_high = le16_to_cpu(fan_info->fan.usPWMHigh); + if (fan_info->fan.ucFanTableFormat >= 2) + adev->pm.dpm.fan.t_max = le16_to_cpu(fan_info->fan2.usTMax); + else + adev->pm.dpm.fan.t_max = 10900; + adev->pm.dpm.fan.cycle_delay = 100000; + if (fan_info->fan.ucFanTableFormat >= 3) { + adev->pm.dpm.fan.control_mode = fan_info->fan3.ucFanControlMode; + adev->pm.dpm.fan.default_max_fan_pwm = + le16_to_cpu(fan_info->fan3.usFanPWMMax); + adev->pm.dpm.fan.default_fan_output_sensitivity = 4836; + adev->pm.dpm.fan.fan_output_sensitivity = + le16_to_cpu(fan_info->fan3.usFanOutputSensitivity); + } + adev->pm.dpm.fan.ucode_fan_control = true; + } + } + + /* clock dependancy tables, shedding tables */ + if (le16_to_cpu(power_info->pplib.usTableSize) >= + sizeof(struct _ATOM_PPLIB_POWERPLAYTABLE4)) { + if (power_info->pplib4.usVddcDependencyOnSCLKOffset) { + dep_table = (ATOM_PPLIB_Clock_Voltage_Dependency_Table *) + (mode_info->atom_context->bios + data_offset + + le16_to_cpu(power_info->pplib4.usVddcDependencyOnSCLKOffset)); + ret = amdgpu_parse_clk_voltage_dep_table(&adev->pm.dpm.dyn_state.vddc_dependency_on_sclk, + dep_table); + if (ret) { + amdgpu_free_extended_power_table(adev); + return ret; + } + } + if (power_info->pplib4.usVddciDependencyOnMCLKOffset) { + dep_table = (ATOM_PPLIB_Clock_Voltage_Dependency_Table *) + (mode_info->atom_context->bios + data_offset + + le16_to_cpu(power_info->pplib4.usVddciDependencyOnMCLKOffset)); + ret = amdgpu_parse_clk_voltage_dep_table(&adev->pm.dpm.dyn_state.vddci_dependency_on_mclk, + dep_table); + if (ret) { + amdgpu_free_extended_power_table(adev); + return ret; + } + } + if (power_info->pplib4.usVddcDependencyOnMCLKOffset) { + dep_table = (ATOM_PPLIB_Clock_Voltage_Dependency_Table *) + (mode_info->atom_context->bios + data_offset + + le16_to_cpu(power_info->pplib4.usVddcDependencyOnMCLKOffset)); + ret = amdgpu_parse_clk_voltage_dep_table(&adev->pm.dpm.dyn_state.vddc_dependency_on_mclk, + dep_table); + if (ret) { + amdgpu_free_extended_power_table(adev); + return ret; + } + } + if (power_info->pplib4.usMvddDependencyOnMCLKOffset) { + dep_table = (ATOM_PPLIB_Clock_Voltage_Dependency_Table *) + (mode_info->atom_context->bios + data_offset + + le16_to_cpu(power_info->pplib4.usMvddDependencyOnMCLKOffset)); + ret = amdgpu_parse_clk_voltage_dep_table(&adev->pm.dpm.dyn_state.mvdd_dependency_on_mclk, + dep_table); + if (ret) { + amdgpu_free_extended_power_table(adev); + return ret; + } + } + if (power_info->pplib4.usMaxClockVoltageOnDCOffset) { + ATOM_PPLIB_Clock_Voltage_Limit_Table *clk_v = + (ATOM_PPLIB_Clock_Voltage_Limit_Table *) + (mode_info->atom_context->bios + data_offset + + le16_to_cpu(power_info->pplib4.usMaxClockVoltageOnDCOffset)); + if (clk_v->ucNumEntries) { + adev->pm.dpm.dyn_state.max_clock_voltage_on_dc.sclk = + le16_to_cpu(clk_v->entries[0].usSclkLow) | + (clk_v->entries[0].ucSclkHigh << 16); + adev->pm.dpm.dyn_state.max_clock_voltage_on_dc.mclk = + le16_to_cpu(clk_v->entries[0].usMclkLow) | + (clk_v->entries[0].ucMclkHigh << 16); + adev->pm.dpm.dyn_state.max_clock_voltage_on_dc.vddc = + le16_to_cpu(clk_v->entries[0].usVddc); + adev->pm.dpm.dyn_state.max_clock_voltage_on_dc.vddci = + le16_to_cpu(clk_v->entries[0].usVddci); + } + } + if (power_info->pplib4.usVddcPhaseShedLimitsTableOffset) { + ATOM_PPLIB_PhaseSheddingLimits_Table *psl = + (ATOM_PPLIB_PhaseSheddingLimits_Table *) + (mode_info->atom_context->bios + data_offset + + le16_to_cpu(power_info->pplib4.usVddcPhaseShedLimitsTableOffset)); + ATOM_PPLIB_PhaseSheddingLimits_Record *entry; + + adev->pm.dpm.dyn_state.phase_shedding_limits_table.entries = + kzalloc(psl->ucNumEntries * + sizeof(struct amdgpu_phase_shedding_limits_entry), + GFP_KERNEL); + if (!adev->pm.dpm.dyn_state.phase_shedding_limits_table.entries) { + amdgpu_free_extended_power_table(adev); + return -ENOMEM; + } + + entry = &psl->entries[0]; + for (i = 0; i < psl->ucNumEntries; i++) { + adev->pm.dpm.dyn_state.phase_shedding_limits_table.entries[i].sclk = + le16_to_cpu(entry->usSclkLow) | (entry->ucSclkHigh << 16); + adev->pm.dpm.dyn_state.phase_shedding_limits_table.entries[i].mclk = + le16_to_cpu(entry->usMclkLow) | (entry->ucMclkHigh << 16); + adev->pm.dpm.dyn_state.phase_shedding_limits_table.entries[i].voltage = + le16_to_cpu(entry->usVoltage); + entry = (ATOM_PPLIB_PhaseSheddingLimits_Record *) + ((u8 *)entry + sizeof(ATOM_PPLIB_PhaseSheddingLimits_Record)); + } + adev->pm.dpm.dyn_state.phase_shedding_limits_table.count = + psl->ucNumEntries; + } + } + + /* cac data */ + if (le16_to_cpu(power_info->pplib.usTableSize) >= + sizeof(struct _ATOM_PPLIB_POWERPLAYTABLE5)) { + adev->pm.dpm.tdp_limit = le32_to_cpu(power_info->pplib5.ulTDPLimit); + adev->pm.dpm.near_tdp_limit = le32_to_cpu(power_info->pplib5.ulNearTDPLimit); + adev->pm.dpm.near_tdp_limit_adjusted = adev->pm.dpm.near_tdp_limit; + adev->pm.dpm.tdp_od_limit = le16_to_cpu(power_info->pplib5.usTDPODLimit); + if (adev->pm.dpm.tdp_od_limit) + adev->pm.dpm.power_control = true; + else + adev->pm.dpm.power_control = false; + adev->pm.dpm.tdp_adjustment = 0; + adev->pm.dpm.sq_ramping_threshold = le32_to_cpu(power_info->pplib5.ulSQRampingThreshold); + adev->pm.dpm.cac_leakage = le32_to_cpu(power_info->pplib5.ulCACLeakage); + adev->pm.dpm.load_line_slope = le16_to_cpu(power_info->pplib5.usLoadLineSlope); + if (power_info->pplib5.usCACLeakageTableOffset) { + ATOM_PPLIB_CAC_Leakage_Table *cac_table = + (ATOM_PPLIB_CAC_Leakage_Table *) + (mode_info->atom_context->bios + data_offset + + le16_to_cpu(power_info->pplib5.usCACLeakageTableOffset)); + ATOM_PPLIB_CAC_Leakage_Record *entry; + u32 size = cac_table->ucNumEntries * sizeof(struct amdgpu_cac_leakage_table); + adev->pm.dpm.dyn_state.cac_leakage_table.entries = kzalloc(size, GFP_KERNEL); + if (!adev->pm.dpm.dyn_state.cac_leakage_table.entries) { + amdgpu_free_extended_power_table(adev); + return -ENOMEM; + } + entry = &cac_table->entries[0]; + for (i = 0; i < cac_table->ucNumEntries; i++) { + if (adev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_EVV) { + adev->pm.dpm.dyn_state.cac_leakage_table.entries[i].vddc1 = + le16_to_cpu(entry->usVddc1); + adev->pm.dpm.dyn_state.cac_leakage_table.entries[i].vddc2 = + le16_to_cpu(entry->usVddc2); + adev->pm.dpm.dyn_state.cac_leakage_table.entries[i].vddc3 = + le16_to_cpu(entry->usVddc3); + } else { + adev->pm.dpm.dyn_state.cac_leakage_table.entries[i].vddc = + le16_to_cpu(entry->usVddc); + adev->pm.dpm.dyn_state.cac_leakage_table.entries[i].leakage = + le32_to_cpu(entry->ulLeakageValue); + } + entry = (ATOM_PPLIB_CAC_Leakage_Record *) + ((u8 *)entry + sizeof(ATOM_PPLIB_CAC_Leakage_Record)); + } + adev->pm.dpm.dyn_state.cac_leakage_table.count = cac_table->ucNumEntries; + } + } + + /* ext tables */ + if (le16_to_cpu(power_info->pplib.usTableSize) >= + sizeof(struct _ATOM_PPLIB_POWERPLAYTABLE3)) { + ATOM_PPLIB_EXTENDEDHEADER *ext_hdr = (ATOM_PPLIB_EXTENDEDHEADER *) + (mode_info->atom_context->bios + data_offset + + le16_to_cpu(power_info->pplib3.usExtendendedHeaderOffset)); + if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V2) && + ext_hdr->usVCETableOffset) { + VCEClockInfoArray *array = (VCEClockInfoArray *) + (mode_info->atom_context->bios + data_offset + + le16_to_cpu(ext_hdr->usVCETableOffset) + 1); + ATOM_PPLIB_VCE_Clock_Voltage_Limit_Table *limits = + (ATOM_PPLIB_VCE_Clock_Voltage_Limit_Table *) + (mode_info->atom_context->bios + data_offset + + le16_to_cpu(ext_hdr->usVCETableOffset) + 1 + + 1 + array->ucNumEntries * sizeof(VCEClockInfo)); + ATOM_PPLIB_VCE_State_Table *states = + (ATOM_PPLIB_VCE_State_Table *) + (mode_info->atom_context->bios + data_offset + + le16_to_cpu(ext_hdr->usVCETableOffset) + 1 + + 1 + (array->ucNumEntries * sizeof (VCEClockInfo)) + + 1 + (limits->numEntries * sizeof(ATOM_PPLIB_VCE_Clock_Voltage_Limit_Record))); + ATOM_PPLIB_VCE_Clock_Voltage_Limit_Record *entry; + ATOM_PPLIB_VCE_State_Record *state_entry; + VCEClockInfo *vce_clk; + u32 size = limits->numEntries * + sizeof(struct amdgpu_vce_clock_voltage_dependency_entry); + adev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries = + kzalloc(size, GFP_KERNEL); + if (!adev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries) { + amdgpu_free_extended_power_table(adev); + return -ENOMEM; + } + adev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.count = + limits->numEntries; + entry = &limits->entries[0]; + state_entry = &states->entries[0]; + for (i = 0; i < limits->numEntries; i++) { + vce_clk = (VCEClockInfo *) + ((u8 *)&array->entries[0] + + (entry->ucVCEClockInfoIndex * sizeof(VCEClockInfo))); + adev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries[i].evclk = + le16_to_cpu(vce_clk->usEVClkLow) | (vce_clk->ucEVClkHigh << 16); + adev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries[i].ecclk = + le16_to_cpu(vce_clk->usECClkLow) | (vce_clk->ucECClkHigh << 16); + adev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries[i].v = + le16_to_cpu(entry->usVoltage); + entry = (ATOM_PPLIB_VCE_Clock_Voltage_Limit_Record *) + ((u8 *)entry + sizeof(ATOM_PPLIB_VCE_Clock_Voltage_Limit_Record)); + } + for (i = 0; i < states->numEntries; i++) { + if (i >= AMDGPU_MAX_VCE_LEVELS) + break; + vce_clk = (VCEClockInfo *) + ((u8 *)&array->entries[0] + + (state_entry->ucVCEClockInfoIndex * sizeof(VCEClockInfo))); + adev->pm.dpm.vce_states[i].evclk = + le16_to_cpu(vce_clk->usEVClkLow) | (vce_clk->ucEVClkHigh << 16); + adev->pm.dpm.vce_states[i].ecclk = + le16_to_cpu(vce_clk->usECClkLow) | (vce_clk->ucECClkHigh << 16); + adev->pm.dpm.vce_states[i].clk_idx = + state_entry->ucClockInfoIndex & 0x3f; + adev->pm.dpm.vce_states[i].pstate = + (state_entry->ucClockInfoIndex & 0xc0) >> 6; + state_entry = (ATOM_PPLIB_VCE_State_Record *) + ((u8 *)state_entry + sizeof(ATOM_PPLIB_VCE_State_Record)); + } + } + if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V3) && + ext_hdr->usUVDTableOffset) { + UVDClockInfoArray *array = (UVDClockInfoArray *) + (mode_info->atom_context->bios + data_offset + + le16_to_cpu(ext_hdr->usUVDTableOffset) + 1); + ATOM_PPLIB_UVD_Clock_Voltage_Limit_Table *limits = + (ATOM_PPLIB_UVD_Clock_Voltage_Limit_Table *) + (mode_info->atom_context->bios + data_offset + + le16_to_cpu(ext_hdr->usUVDTableOffset) + 1 + + 1 + (array->ucNumEntries * sizeof (UVDClockInfo))); + ATOM_PPLIB_UVD_Clock_Voltage_Limit_Record *entry; + u32 size = limits->numEntries * + sizeof(struct amdgpu_uvd_clock_voltage_dependency_entry); + adev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries = + kzalloc(size, GFP_KERNEL); + if (!adev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries) { + amdgpu_free_extended_power_table(adev); + return -ENOMEM; + } + adev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.count = + limits->numEntries; + entry = &limits->entries[0]; + for (i = 0; i < limits->numEntries; i++) { + UVDClockInfo *uvd_clk = (UVDClockInfo *) + ((u8 *)&array->entries[0] + + (entry->ucUVDClockInfoIndex * sizeof(UVDClockInfo))); + adev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries[i].vclk = + le16_to_cpu(uvd_clk->usVClkLow) | (uvd_clk->ucVClkHigh << 16); + adev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries[i].dclk = + le16_to_cpu(uvd_clk->usDClkLow) | (uvd_clk->ucDClkHigh << 16); + adev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries[i].v = + le16_to_cpu(entry->usVoltage); + entry = (ATOM_PPLIB_UVD_Clock_Voltage_Limit_Record *) + ((u8 *)entry + sizeof(ATOM_PPLIB_UVD_Clock_Voltage_Limit_Record)); + } + } + if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V4) && + ext_hdr->usSAMUTableOffset) { + ATOM_PPLIB_SAMClk_Voltage_Limit_Table *limits = + (ATOM_PPLIB_SAMClk_Voltage_Limit_Table *) + (mode_info->atom_context->bios + data_offset + + le16_to_cpu(ext_hdr->usSAMUTableOffset) + 1); + ATOM_PPLIB_SAMClk_Voltage_Limit_Record *entry; + u32 size = limits->numEntries * + sizeof(struct amdgpu_clock_voltage_dependency_entry); + adev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries = + kzalloc(size, GFP_KERNEL); + if (!adev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries) { + amdgpu_free_extended_power_table(adev); + return -ENOMEM; + } + adev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.count = + limits->numEntries; + entry = &limits->entries[0]; + for (i = 0; i < limits->numEntries; i++) { + adev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries[i].clk = + le16_to_cpu(entry->usSAMClockLow) | (entry->ucSAMClockHigh << 16); + adev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries[i].v = + le16_to_cpu(entry->usVoltage); + entry = (ATOM_PPLIB_SAMClk_Voltage_Limit_Record *) + ((u8 *)entry + sizeof(ATOM_PPLIB_SAMClk_Voltage_Limit_Record)); + } + } + if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V5) && + ext_hdr->usPPMTableOffset) { + ATOM_PPLIB_PPM_Table *ppm = (ATOM_PPLIB_PPM_Table *) + (mode_info->atom_context->bios + data_offset + + le16_to_cpu(ext_hdr->usPPMTableOffset)); + adev->pm.dpm.dyn_state.ppm_table = + kzalloc(sizeof(struct amdgpu_ppm_table), GFP_KERNEL); + if (!adev->pm.dpm.dyn_state.ppm_table) { + amdgpu_free_extended_power_table(adev); + return -ENOMEM; + } + adev->pm.dpm.dyn_state.ppm_table->ppm_design = ppm->ucPpmDesign; + adev->pm.dpm.dyn_state.ppm_table->cpu_core_number = + le16_to_cpu(ppm->usCpuCoreNumber); + adev->pm.dpm.dyn_state.ppm_table->platform_tdp = + le32_to_cpu(ppm->ulPlatformTDP); + adev->pm.dpm.dyn_state.ppm_table->small_ac_platform_tdp = + le32_to_cpu(ppm->ulSmallACPlatformTDP); + adev->pm.dpm.dyn_state.ppm_table->platform_tdc = + le32_to_cpu(ppm->ulPlatformTDC); + adev->pm.dpm.dyn_state.ppm_table->small_ac_platform_tdc = + le32_to_cpu(ppm->ulSmallACPlatformTDC); + adev->pm.dpm.dyn_state.ppm_table->apu_tdp = + le32_to_cpu(ppm->ulApuTDP); + adev->pm.dpm.dyn_state.ppm_table->dgpu_tdp = + le32_to_cpu(ppm->ulDGpuTDP); + adev->pm.dpm.dyn_state.ppm_table->dgpu_ulv_power = + le32_to_cpu(ppm->ulDGpuUlvPower); + adev->pm.dpm.dyn_state.ppm_table->tj_max = + le32_to_cpu(ppm->ulTjmax); + } + if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V6) && + ext_hdr->usACPTableOffset) { + ATOM_PPLIB_ACPClk_Voltage_Limit_Table *limits = + (ATOM_PPLIB_ACPClk_Voltage_Limit_Table *) + (mode_info->atom_context->bios + data_offset + + le16_to_cpu(ext_hdr->usACPTableOffset) + 1); + ATOM_PPLIB_ACPClk_Voltage_Limit_Record *entry; + u32 size = limits->numEntries * + sizeof(struct amdgpu_clock_voltage_dependency_entry); + adev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries = + kzalloc(size, GFP_KERNEL); + if (!adev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries) { + amdgpu_free_extended_power_table(adev); + return -ENOMEM; + } + adev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.count = + limits->numEntries; + entry = &limits->entries[0]; + for (i = 0; i < limits->numEntries; i++) { + adev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries[i].clk = + le16_to_cpu(entry->usACPClockLow) | (entry->ucACPClockHigh << 16); + adev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries[i].v = + le16_to_cpu(entry->usVoltage); + entry = (ATOM_PPLIB_ACPClk_Voltage_Limit_Record *) + ((u8 *)entry + sizeof(ATOM_PPLIB_ACPClk_Voltage_Limit_Record)); + } + } + if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V7) && + ext_hdr->usPowerTuneTableOffset) { + u8 rev = *(u8 *)(mode_info->atom_context->bios + data_offset + + le16_to_cpu(ext_hdr->usPowerTuneTableOffset)); + ATOM_PowerTune_Table *pt; + adev->pm.dpm.dyn_state.cac_tdp_table = + kzalloc(sizeof(struct amdgpu_cac_tdp_table), GFP_KERNEL); + if (!adev->pm.dpm.dyn_state.cac_tdp_table) { + amdgpu_free_extended_power_table(adev); + return -ENOMEM; + } + if (rev > 0) { + ATOM_PPLIB_POWERTUNE_Table_V1 *ppt = (ATOM_PPLIB_POWERTUNE_Table_V1 *) + (mode_info->atom_context->bios + data_offset + + le16_to_cpu(ext_hdr->usPowerTuneTableOffset)); + adev->pm.dpm.dyn_state.cac_tdp_table->maximum_power_delivery_limit = + ppt->usMaximumPowerDeliveryLimit; + pt = &ppt->power_tune_table; + } else { + ATOM_PPLIB_POWERTUNE_Table *ppt = (ATOM_PPLIB_POWERTUNE_Table *) + (mode_info->atom_context->bios + data_offset + + le16_to_cpu(ext_hdr->usPowerTuneTableOffset)); + adev->pm.dpm.dyn_state.cac_tdp_table->maximum_power_delivery_limit = 255; + pt = &ppt->power_tune_table; + } + adev->pm.dpm.dyn_state.cac_tdp_table->tdp = le16_to_cpu(pt->usTDP); + adev->pm.dpm.dyn_state.cac_tdp_table->configurable_tdp = + le16_to_cpu(pt->usConfigurableTDP); + adev->pm.dpm.dyn_state.cac_tdp_table->tdc = le16_to_cpu(pt->usTDC); + adev->pm.dpm.dyn_state.cac_tdp_table->battery_power_limit = + le16_to_cpu(pt->usBatteryPowerLimit); + adev->pm.dpm.dyn_state.cac_tdp_table->small_power_limit = + le16_to_cpu(pt->usSmallPowerLimit); + adev->pm.dpm.dyn_state.cac_tdp_table->low_cac_leakage = + le16_to_cpu(pt->usLowCACLeakage); + adev->pm.dpm.dyn_state.cac_tdp_table->high_cac_leakage = + le16_to_cpu(pt->usHighCACLeakage); + } + if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V8) && + ext_hdr->usSclkVddgfxTableOffset) { + dep_table = (ATOM_PPLIB_Clock_Voltage_Dependency_Table *) + (mode_info->atom_context->bios + data_offset + + le16_to_cpu(ext_hdr->usSclkVddgfxTableOffset)); + ret = amdgpu_parse_clk_voltage_dep_table( + &adev->pm.dpm.dyn_state.vddgfx_dependency_on_sclk, + dep_table); + if (ret) { + kfree(adev->pm.dpm.dyn_state.vddgfx_dependency_on_sclk.entries); + return ret; + } + } + } + + return 0; +} + +void amdgpu_free_extended_power_table(struct amdgpu_device *adev) +{ + struct amdgpu_dpm_dynamic_state *dyn_state = &adev->pm.dpm.dyn_state; + + kfree(dyn_state->vddc_dependency_on_sclk.entries); + kfree(dyn_state->vddci_dependency_on_mclk.entries); + kfree(dyn_state->vddc_dependency_on_mclk.entries); + kfree(dyn_state->mvdd_dependency_on_mclk.entries); + kfree(dyn_state->cac_leakage_table.entries); + kfree(dyn_state->phase_shedding_limits_table.entries); + kfree(dyn_state->ppm_table); + kfree(dyn_state->cac_tdp_table); + kfree(dyn_state->vce_clock_voltage_dependency_table.entries); + kfree(dyn_state->uvd_clock_voltage_dependency_table.entries); + kfree(dyn_state->samu_clock_voltage_dependency_table.entries); + kfree(dyn_state->acp_clock_voltage_dependency_table.entries); + kfree(dyn_state->vddgfx_dependency_on_sclk.entries); +} + +static const char *pp_lib_thermal_controller_names[] = { + "NONE", + "lm63", + "adm1032", + "adm1030", + "max6649", + "lm64", + "f75375", + "RV6xx", + "RV770", + "adt7473", + "NONE", + "External GPIO", + "Evergreen", + "emc2103", + "Sumo", + "Northern Islands", + "Southern Islands", + "lm96163", + "Sea Islands", + "Kaveri/Kabini", +}; + +void amdgpu_add_thermal_controller(struct amdgpu_device *adev) +{ + struct amdgpu_mode_info *mode_info = &adev->mode_info; + ATOM_PPLIB_POWERPLAYTABLE *power_table; + int index = GetIndexIntoMasterTable(DATA, PowerPlayInfo); + ATOM_PPLIB_THERMALCONTROLLER *controller; + struct amdgpu_i2c_bus_rec i2c_bus; + u16 data_offset; + u8 frev, crev; + + if (!amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL, + &frev, &crev, &data_offset)) + return; + power_table = (ATOM_PPLIB_POWERPLAYTABLE *) + (mode_info->atom_context->bios + data_offset); + controller = &power_table->sThermalController; + + /* add the i2c bus for thermal/fan chip */ + if (controller->ucType > 0) { + if (controller->ucFanParameters & ATOM_PP_FANPARAMETERS_NOFAN) + adev->pm.no_fan = true; + adev->pm.fan_pulses_per_revolution = + controller->ucFanParameters & ATOM_PP_FANPARAMETERS_TACHOMETER_PULSES_PER_REVOLUTION_MASK; + if (adev->pm.fan_pulses_per_revolution) { + adev->pm.fan_min_rpm = controller->ucFanMinRPM; + adev->pm.fan_max_rpm = controller->ucFanMaxRPM; + } + if (controller->ucType == ATOM_PP_THERMALCONTROLLER_RV6xx) { + DRM_INFO("Internal thermal controller %s fan control\n", + (controller->ucFanParameters & + ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with"); + adev->pm.int_thermal_type = THERMAL_TYPE_RV6XX; + } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_RV770) { + DRM_INFO("Internal thermal controller %s fan control\n", + (controller->ucFanParameters & + ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with"); + adev->pm.int_thermal_type = THERMAL_TYPE_RV770; + } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_EVERGREEN) { + DRM_INFO("Internal thermal controller %s fan control\n", + (controller->ucFanParameters & + ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with"); + adev->pm.int_thermal_type = THERMAL_TYPE_EVERGREEN; + } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_SUMO) { + DRM_INFO("Internal thermal controller %s fan control\n", + (controller->ucFanParameters & + ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with"); + adev->pm.int_thermal_type = THERMAL_TYPE_SUMO; + } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_NISLANDS) { + DRM_INFO("Internal thermal controller %s fan control\n", + (controller->ucFanParameters & + ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with"); + adev->pm.int_thermal_type = THERMAL_TYPE_NI; + } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_SISLANDS) { + DRM_INFO("Internal thermal controller %s fan control\n", + (controller->ucFanParameters & + ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with"); + adev->pm.int_thermal_type = THERMAL_TYPE_SI; + } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_CISLANDS) { + DRM_INFO("Internal thermal controller %s fan control\n", + (controller->ucFanParameters & + ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with"); + adev->pm.int_thermal_type = THERMAL_TYPE_CI; + } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_KAVERI) { + DRM_INFO("Internal thermal controller %s fan control\n", + (controller->ucFanParameters & + ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with"); + adev->pm.int_thermal_type = THERMAL_TYPE_KV; + } else if (controller->ucType == ATOM_PP_THERMALCONTROLLER_EXTERNAL_GPIO) { + DRM_INFO("External GPIO thermal controller %s fan control\n", + (controller->ucFanParameters & + ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with"); + adev->pm.int_thermal_type = THERMAL_TYPE_EXTERNAL_GPIO; + } else if (controller->ucType == + ATOM_PP_THERMALCONTROLLER_ADT7473_WITH_INTERNAL) { + DRM_INFO("ADT7473 with internal thermal controller %s fan control\n", + (controller->ucFanParameters & + ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with"); + adev->pm.int_thermal_type = THERMAL_TYPE_ADT7473_WITH_INTERNAL; + } else if (controller->ucType == + ATOM_PP_THERMALCONTROLLER_EMC2103_WITH_INTERNAL) { + DRM_INFO("EMC2103 with internal thermal controller %s fan control\n", + (controller->ucFanParameters & + ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with"); + adev->pm.int_thermal_type = THERMAL_TYPE_EMC2103_WITH_INTERNAL; + } else if (controller->ucType < ARRAY_SIZE(pp_lib_thermal_controller_names)) { + DRM_INFO("Possible %s thermal controller at 0x%02x %s fan control\n", + pp_lib_thermal_controller_names[controller->ucType], + controller->ucI2cAddress >> 1, + (controller->ucFanParameters & + ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with"); + adev->pm.int_thermal_type = THERMAL_TYPE_EXTERNAL; + i2c_bus = amdgpu_atombios_lookup_i2c_gpio(adev, controller->ucI2cLine); + adev->pm.i2c_bus = amdgpu_i2c_lookup(adev, &i2c_bus); + if (adev->pm.i2c_bus) { + struct i2c_board_info info = { }; + const char *name = pp_lib_thermal_controller_names[controller->ucType]; + info.addr = controller->ucI2cAddress >> 1; + strlcpy(info.type, name, sizeof(info.type)); + i2c_new_device(&adev->pm.i2c_bus->adapter, &info); + } + } else { + DRM_INFO("Unknown thermal controller type %d at 0x%02x %s fan control\n", + controller->ucType, + controller->ucI2cAddress >> 1, + (controller->ucFanParameters & + ATOM_PP_FANPARAMETERS_NOFAN) ? "without" : "with"); + } + } +} + +enum amdgpu_pcie_gen amdgpu_get_pcie_gen_support(struct amdgpu_device *adev, + u32 sys_mask, + enum amdgpu_pcie_gen asic_gen, + enum amdgpu_pcie_gen default_gen) +{ + switch (asic_gen) { + case AMDGPU_PCIE_GEN1: + return AMDGPU_PCIE_GEN1; + case AMDGPU_PCIE_GEN2: + return AMDGPU_PCIE_GEN2; + case AMDGPU_PCIE_GEN3: + return AMDGPU_PCIE_GEN3; + default: + if ((sys_mask & DRM_PCIE_SPEED_80) && (default_gen == AMDGPU_PCIE_GEN3)) + return AMDGPU_PCIE_GEN3; + else if ((sys_mask & DRM_PCIE_SPEED_50) && (default_gen == AMDGPU_PCIE_GEN2)) + return AMDGPU_PCIE_GEN2; + else + return AMDGPU_PCIE_GEN1; + } + return AMDGPU_PCIE_GEN1; +} + +u16 amdgpu_get_pcie_lane_support(struct amdgpu_device *adev, + u16 asic_lanes, + u16 default_lanes) +{ + switch (asic_lanes) { + case 0: + default: + return default_lanes; + case 1: + return 1; + case 2: + return 2; + case 4: + return 4; + case 8: + return 8; + case 12: + return 12; + case 16: + return 16; + } +} + +u8 amdgpu_encode_pci_lane_width(u32 lanes) +{ + u8 encoded_lanes[] = { 0, 1, 2, 0, 3, 0, 0, 0, 4, 0, 0, 0, 5, 0, 0, 0, 6 }; + + if (lanes > 16) + return 0; + + return encoded_lanes[lanes]; +} |