1 // SPDX-License-Identifier: MIT 2 /* 3 * Copyright © 2022 Intel Corporation 4 */ 5 6 #include "xe_guc_log.h" 7 8 #include <drm/drm_managed.h> 9 10 #include "xe_bo.h" 11 #include "xe_gt.h" 12 #include "xe_map.h" 13 #include "xe_module.h" 14 15 static struct xe_gt * 16 log_to_gt(struct xe_guc_log *log) 17 { 18 return container_of(log, struct xe_gt, uc.guc.log); 19 } 20 21 static struct xe_device * 22 log_to_xe(struct xe_guc_log *log) 23 { 24 return gt_to_xe(log_to_gt(log)); 25 } 26 27 static size_t guc_log_size(void) 28 { 29 /* 30 * GuC Log buffer Layout 31 * 32 * +===============================+ 00B 33 * | Crash dump state header | 34 * +-------------------------------+ 32B 35 * | Debug state header | 36 * +-------------------------------+ 64B 37 * | Capture state header | 38 * +-------------------------------+ 96B 39 * | | 40 * +===============================+ PAGE_SIZE (4KB) 41 * | Crash Dump logs | 42 * +===============================+ + CRASH_SIZE 43 * | Debug logs | 44 * +===============================+ + DEBUG_SIZE 45 * | Capture logs | 46 * +===============================+ + CAPTURE_SIZE 47 */ 48 return PAGE_SIZE + CRASH_BUFFER_SIZE + DEBUG_BUFFER_SIZE + 49 CAPTURE_BUFFER_SIZE; 50 } 51 52 void xe_guc_log_print(struct xe_guc_log *log, struct drm_printer *p) 53 { 54 struct xe_device *xe = log_to_xe(log); 55 size_t size; 56 int i, j; 57 58 xe_assert(xe, log->bo); 59 60 size = log->bo->size; 61 62 #define DW_PER_READ 128 63 xe_assert(xe, !(size % (DW_PER_READ * sizeof(u32)))); 64 for (i = 0; i < size / sizeof(u32); i += DW_PER_READ) { 65 u32 read[DW_PER_READ]; 66 67 xe_map_memcpy_from(xe, read, &log->bo->vmap, i * sizeof(u32), 68 DW_PER_READ * sizeof(u32)); 69 #define DW_PER_PRINT 4 70 for (j = 0; j < DW_PER_READ / DW_PER_PRINT; ++j) { 71 u32 *print = read + j * DW_PER_PRINT; 72 73 drm_printf(p, "0x%08x 0x%08x 0x%08x 0x%08x\n", 74 *(print + 0), *(print + 1), 75 *(print + 2), *(print + 3)); 76 } 77 } 78 } 79 80 int xe_guc_log_init(struct xe_guc_log *log) 81 { 82 struct xe_device *xe = log_to_xe(log); 83 struct xe_tile *tile = gt_to_tile(log_to_gt(log)); 84 struct xe_bo *bo; 85 86 bo = xe_managed_bo_create_pin_map(xe, tile, guc_log_size(), 87 XE_BO_CREATE_SYSTEM_BIT | 88 XE_BO_CREATE_GGTT_BIT); 89 if (IS_ERR(bo)) 90 return PTR_ERR(bo); 91 92 xe_map_memset(xe, &bo->vmap, 0, 0, guc_log_size()); 93 log->bo = bo; 94 log->level = xe_modparam.guc_log_level; 95 96 return 0; 97 } 98