xe_gt_stats.c

  1// SPDX-License-Identifier: MIT
  2/*
  3 * Copyright © 2024 Intel Corporation
  4 */
  5
  6#include <linux/atomic.h>
  7
  8#include <drm/drm_print.h>
  9
 10#include "xe_gt.h"
 11#include "xe_gt_stats.h"
 12
 13/**
 14 * xe_gt_stats_incr - Increments the specified stats counter
 15 * @gt: GT structure
 16 * @id: xe_gt_stats_id type id that needs to be incremented
 17 * @incr: value to be incremented with
 18 *
 19 * Increments the specified stats counter.
 20 */
 21void xe_gt_stats_incr(struct xe_gt *gt, const enum xe_gt_stats_id id, int incr)
 22{
 23	if (id >= __XE_GT_STATS_NUM_IDS)
 24		return;
 25
 26	atomic64_add(incr, &gt->stats.counters[id]);
 27}
 28
 29#define DEF_STAT_STR(ID, name) [XE_GT_STATS_ID_##ID] = name
 30
 31static const char *const stat_description[__XE_GT_STATS_NUM_IDS] = {
 32	DEF_STAT_STR(SVM_PAGEFAULT_COUNT, "svm_pagefault_count"),
 33	DEF_STAT_STR(TLB_INVAL, "tlb_inval_count"),
 34	DEF_STAT_STR(SVM_TLB_INVAL_COUNT, "svm_tlb_inval_count"),
 35	DEF_STAT_STR(SVM_TLB_INVAL_US, "svm_tlb_inval_us"),
 36	DEF_STAT_STR(VMA_PAGEFAULT_COUNT, "vma_pagefault_count"),
 37	DEF_STAT_STR(VMA_PAGEFAULT_KB, "vma_pagefault_kb"),
 38	DEF_STAT_STR(SVM_4K_PAGEFAULT_COUNT, "svm_4K_pagefault_count"),
 39	DEF_STAT_STR(SVM_64K_PAGEFAULT_COUNT, "svm_64K_pagefault_count"),
 40	DEF_STAT_STR(SVM_2M_PAGEFAULT_COUNT, "svm_2M_pagefault_count"),
 41	DEF_STAT_STR(SVM_4K_VALID_PAGEFAULT_COUNT, "svm_4K_valid_pagefault_count"),
 42	DEF_STAT_STR(SVM_64K_VALID_PAGEFAULT_COUNT, "svm_64K_valid_pagefault_count"),
 43	DEF_STAT_STR(SVM_2M_VALID_PAGEFAULT_COUNT, "svm_2M_valid_pagefault_count"),
 44	DEF_STAT_STR(SVM_4K_PAGEFAULT_US, "svm_4K_pagefault_us"),
 45	DEF_STAT_STR(SVM_64K_PAGEFAULT_US, "svm_64K_pagefault_us"),
 46	DEF_STAT_STR(SVM_2M_PAGEFAULT_US, "svm_2M_pagefault_us"),
 47	DEF_STAT_STR(SVM_4K_MIGRATE_COUNT, "svm_4K_migrate_count"),
 48	DEF_STAT_STR(SVM_64K_MIGRATE_COUNT, "svm_64K_migrate_count"),
 49	DEF_STAT_STR(SVM_2M_MIGRATE_COUNT, "svm_2M_migrate_count"),
 50	DEF_STAT_STR(SVM_4K_MIGRATE_US, "svm_4K_migrate_us"),
 51	DEF_STAT_STR(SVM_64K_MIGRATE_US, "svm_64K_migrate_us"),
 52	DEF_STAT_STR(SVM_2M_MIGRATE_US, "svm_2M_migrate_us"),
 53	DEF_STAT_STR(SVM_DEVICE_COPY_US, "svm_device_copy_us"),
 54	DEF_STAT_STR(SVM_4K_DEVICE_COPY_US, "svm_4K_device_copy_us"),
 55	DEF_STAT_STR(SVM_64K_DEVICE_COPY_US, "svm_64K_device_copy_us"),
 56	DEF_STAT_STR(SVM_2M_DEVICE_COPY_US, "svm_2M_device_copy_us"),
 57	DEF_STAT_STR(SVM_CPU_COPY_US, "svm_cpu_copy_us"),
 58	DEF_STAT_STR(SVM_4K_CPU_COPY_US, "svm_4K_cpu_copy_us"),
 59	DEF_STAT_STR(SVM_64K_CPU_COPY_US, "svm_64K_cpu_copy_us"),
 60	DEF_STAT_STR(SVM_2M_CPU_COPY_US, "svm_2M_cpu_copy_us"),
 61	DEF_STAT_STR(SVM_DEVICE_COPY_KB, "svm_device_copy_kb"),
 62	DEF_STAT_STR(SVM_CPU_COPY_KB, "svm_cpu_copy_kb"),
 63	DEF_STAT_STR(SVM_4K_GET_PAGES_US, "svm_4K_get_pages_us"),
 64	DEF_STAT_STR(SVM_64K_GET_PAGES_US, "svm_64K_get_pages_us"),
 65	DEF_STAT_STR(SVM_2M_GET_PAGES_US, "svm_2M_get_pages_us"),
 66	DEF_STAT_STR(SVM_4K_BIND_US, "svm_4K_bind_us"),
 67	DEF_STAT_STR(SVM_64K_BIND_US, "svm_64K_bind_us"),
 68	DEF_STAT_STR(SVM_2M_BIND_US, "svm_2M_bind_us"),
 69};
 70
 71/**
 72 * xe_gt_stats_print_info - Print the GT stats
 73 * @gt: GT structure
 74 * @p: drm_printer where it will be printed out.
 75 *
 76 * This prints out all the available GT stats.
 77 */
 78int xe_gt_stats_print_info(struct xe_gt *gt, struct drm_printer *p)
 79{
 80	enum xe_gt_stats_id id;
 81
 82	for (id = 0; id < __XE_GT_STATS_NUM_IDS; ++id)
 83		drm_printf(p, "%s: %lld\n", stat_description[id],
 84			   atomic64_read(&gt->stats.counters[id]));
 85
 86	return 0;
 87}
 88
 89/**
 90 * xe_gt_stats_clear - Clear the GT stats
 91 * @gt: GT structure
 92 *
 93 * This clear (zeros) all the available GT stats.
 94 */
 95void xe_gt_stats_clear(struct xe_gt *gt)
 96{
 97	int id;
 98
 99	for (id = 0; id < ARRAY_SIZE(gt->stats.counters); ++id)
100		atomic64_set(&gt->stats.counters[id], 0);
101}