Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Sujaritha Sundaresan | 724 | 73.13% | 1 | 16.67% |
Matthew Brost | 216 | 21.82% | 1 | 16.67% |
Rodrigo Vivi | 31 | 3.13% | 2 | 33.33% |
Vinay Belgaumkar | 14 | 1.41% | 1 | 16.67% |
Himal Prasad Ghimiray | 5 | 0.51% | 1 | 16.67% |
Total | 990 | 6 |
// SPDX-License-Identifier: MIT /* * Copyright © 2023 Intel Corporation */ #include <drm/drm_managed.h> #include <regs/xe_gt_regs.h> #include "xe_device.h" #include "xe_gt.h" #include "xe_gt_sysfs.h" #include "xe_gt_throttle_sysfs.h" #include "xe_mmio.h" #include "xe_pm.h" /** * DOC: Xe GT Throttle * * Provides sysfs entries for frequency throttle reasons in GT * * device/gt#/freq0/throttle/status - Overall status * device/gt#/freq0/throttle/reason_pl1 - Frequency throttle due to PL1 * device/gt#/freq0/throttle/reason_pl2 - Frequency throttle due to PL2 * device/gt#/freq0/throttle/reason_pl4 - Frequency throttle due to PL4, Iccmax etc. * device/gt#/freq0/throttle/reason_thermal - Frequency throttle due to thermal * device/gt#/freq0/throttle/reason_prochot - Frequency throttle due to prochot * device/gt#/freq0/throttle/reason_ratl - Frequency throttle due to RATL * device/gt#/freq0/throttle/reason_vr_thermalert - Frequency throttle due to VR THERMALERT * device/gt#/freq0/throttle/reason_vr_tdc - Frequency throttle due to VR TDC */ static struct xe_gt * dev_to_gt(struct device *dev) { return kobj_to_gt(dev->kobj.parent); } static u32 read_perf_limit_reasons(struct xe_gt *gt) { u32 reg; xe_pm_runtime_get(gt_to_xe(gt)); if (xe_gt_is_media_type(gt)) reg = xe_mmio_read32(gt, MTL_MEDIA_PERF_LIMIT_REASONS); else reg = xe_mmio_read32(gt, GT0_PERF_LIMIT_REASONS); xe_pm_runtime_put(gt_to_xe(gt)); return reg; } static u32 read_status(struct xe_gt *gt) { u32 status = read_perf_limit_reasons(gt) & GT0_PERF_LIMIT_REASONS_MASK; return status; } static u32 read_reason_pl1(struct xe_gt *gt) { u32 pl1 = read_perf_limit_reasons(gt) & POWER_LIMIT_1_MASK; return pl1; } static u32 read_reason_pl2(struct xe_gt *gt) { u32 pl2 = read_perf_limit_reasons(gt) & POWER_LIMIT_2_MASK; return pl2; } static u32 read_reason_pl4(struct xe_gt *gt) { u32 pl4 = read_perf_limit_reasons(gt) & POWER_LIMIT_4_MASK; return pl4; } static u32 read_reason_thermal(struct xe_gt *gt) { u32 thermal = read_perf_limit_reasons(gt) & THERMAL_LIMIT_MASK; return thermal; } static u32 read_reason_prochot(struct xe_gt *gt) { u32 prochot = read_perf_limit_reasons(gt) & PROCHOT_MASK; return prochot; } static u32 read_reason_ratl(struct xe_gt *gt) { u32 ratl = read_perf_limit_reasons(gt) & RATL_MASK; return ratl; } static u32 read_reason_vr_thermalert(struct xe_gt *gt) { u32 thermalert = read_perf_limit_reasons(gt) & VR_THERMALERT_MASK; return thermalert; } static u32 read_reason_vr_tdc(struct xe_gt *gt) { u32 tdc = read_perf_limit_reasons(gt) & VR_TDC_MASK; return tdc; } static ssize_t status_show(struct device *dev, struct device_attribute *attr, char *buff) { struct xe_gt *gt = dev_to_gt(dev); bool status = !!read_status(gt); return sysfs_emit(buff, "%u\n", status); } static DEVICE_ATTR_RO(status); static ssize_t reason_pl1_show(struct device *dev, struct device_attribute *attr, char *buff) { struct xe_gt *gt = dev_to_gt(dev); bool pl1 = !!read_reason_pl1(gt); return sysfs_emit(buff, "%u\n", pl1); } static DEVICE_ATTR_RO(reason_pl1); static ssize_t reason_pl2_show(struct device *dev, struct device_attribute *attr, char *buff) { struct xe_gt *gt = dev_to_gt(dev); bool pl2 = !!read_reason_pl2(gt); return sysfs_emit(buff, "%u\n", pl2); } static DEVICE_ATTR_RO(reason_pl2); static ssize_t reason_pl4_show(struct device *dev, struct device_attribute *attr, char *buff) { struct xe_gt *gt = dev_to_gt(dev); bool pl4 = !!read_reason_pl4(gt); return sysfs_emit(buff, "%u\n", pl4); } static DEVICE_ATTR_RO(reason_pl4); static ssize_t reason_thermal_show(struct device *dev, struct device_attribute *attr, char *buff) { struct xe_gt *gt = dev_to_gt(dev); bool thermal = !!read_reason_thermal(gt); return sysfs_emit(buff, "%u\n", thermal); } static DEVICE_ATTR_RO(reason_thermal); static ssize_t reason_prochot_show(struct device *dev, struct device_attribute *attr, char *buff) { struct xe_gt *gt = dev_to_gt(dev); bool prochot = !!read_reason_prochot(gt); return sysfs_emit(buff, "%u\n", prochot); } static DEVICE_ATTR_RO(reason_prochot); static ssize_t reason_ratl_show(struct device *dev, struct device_attribute *attr, char *buff) { struct xe_gt *gt = dev_to_gt(dev); bool ratl = !!read_reason_ratl(gt); return sysfs_emit(buff, "%u\n", ratl); } static DEVICE_ATTR_RO(reason_ratl); static ssize_t reason_vr_thermalert_show(struct device *dev, struct device_attribute *attr, char *buff) { struct xe_gt *gt = dev_to_gt(dev); bool thermalert = !!read_reason_vr_thermalert(gt); return sysfs_emit(buff, "%u\n", thermalert); } static DEVICE_ATTR_RO(reason_vr_thermalert); static ssize_t reason_vr_tdc_show(struct device *dev, struct device_attribute *attr, char *buff) { struct xe_gt *gt = dev_to_gt(dev); bool tdc = !!read_reason_vr_tdc(gt); return sysfs_emit(buff, "%u\n", tdc); } static DEVICE_ATTR_RO(reason_vr_tdc); static struct attribute *throttle_attrs[] = { &dev_attr_status.attr, &dev_attr_reason_pl1.attr, &dev_attr_reason_pl2.attr, &dev_attr_reason_pl4.attr, &dev_attr_reason_thermal.attr, &dev_attr_reason_prochot.attr, &dev_attr_reason_ratl.attr, &dev_attr_reason_vr_thermalert.attr, &dev_attr_reason_vr_tdc.attr, NULL }; static const struct attribute_group throttle_group_attrs = { .name = "throttle", .attrs = throttle_attrs, }; static void gt_throttle_sysfs_fini(struct drm_device *drm, void *arg) { struct xe_gt *gt = arg; sysfs_remove_group(gt->freq, &throttle_group_attrs); } int xe_gt_throttle_sysfs_init(struct xe_gt *gt) { struct xe_device *xe = gt_to_xe(gt); int err; err = sysfs_create_group(gt->freq, &throttle_group_attrs); if (err) return err; return drmm_add_action_or_reset(&xe->drm, gt_throttle_sysfs_fini, gt); }
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