1 // SPDX-License-Identifier: MIT 2 /* 3 * Copyright © 2021 Intel Corporation 4 */ 5 6 #include <kunit/test-bug.h> 7 8 #include <linux/export.h> 9 #include <linux/kmemleak.h> 10 #include <linux/module.h> 11 #include <linux/sizes.h> 12 13 #include <linux/gpu_buddy.h> 14 #include <drm/drm_buddy.h> 15 #include <drm/drm_print.h> 16 17 /** 18 * drm_buddy_block_print - print block information 19 * 20 * @mm: DRM buddy manager 21 * @block: DRM buddy block 22 * @p: DRM printer to use 23 */ 24 void drm_buddy_block_print(struct gpu_buddy *mm, 25 struct gpu_buddy_block *block, 26 struct drm_printer *p) 27 { 28 u64 start = gpu_buddy_block_offset(block); 29 u64 size = gpu_buddy_block_size(mm, block); 30 31 drm_printf(p, "%#018llx-%#018llx: %llu\n", start, start + size, size); 32 } 33 EXPORT_SYMBOL(drm_buddy_block_print); 34 35 /** 36 * drm_buddy_print - print allocator state 37 * 38 * @mm: DRM buddy manager 39 * @p: DRM printer to use 40 */ 41 void drm_buddy_print(struct gpu_buddy *mm, struct drm_printer *p) 42 { 43 int order; 44 45 gpu_buddy_driver_lock_held(mm); 46 drm_printf(p, "chunk_size: %lluKiB, total: %lluMiB, free: %lluMiB, clear_free: %lluMiB\n", 47 mm->chunk_size >> 10, mm->size >> 20, mm->avail >> 20, 48 gpu_buddy_clear_avail(mm) >> 20); 49 50 for (order = mm->max_order; order >= 0; order--) { 51 u64 free_count = mm->free_scoreboard[order]; 52 u64 used_count = mm->used_scoreboard[order]; 53 u64 block_size = mm->chunk_size << order; 54 u64 free = free_count * block_size; 55 u64 used = used_count * block_size; 56 57 drm_printf(p, "order-%2d ", order); 58 59 if (block_size < SZ_1M) 60 drm_printf(p, "free: %8llu KiB, used: %8llu KiB", 61 free >> 10, used >> 10); 62 else 63 drm_printf(p, "free: %8llu MiB, used: %8llu MiB", 64 free >> 20, used >> 20); 65 66 drm_printf(p, ", free_blocks: %llu, used_blocks: %llu\n", 67 free_count, used_count); 68 } 69 } 70 EXPORT_SYMBOL(drm_buddy_print); 71 72 MODULE_DESCRIPTION("DRM-specific GPU Buddy Allocator Print Helpers"); 73 MODULE_LICENSE("Dual MIT/GPL"); 74