69 	struct xe_guc_log_snapshot *snapshot;  in xe_guc_log_snapshot_alloc()  local
73 	snapshot = kzalloc(sizeof(*snapshot), atomic ? GFP_ATOMIC : GFP_KERNEL);  in xe_guc_log_snapshot_alloc()
74 	if (!snapshot)  in xe_guc_log_snapshot_alloc()
82 	snapshot->size = log->bo->size;  in xe_guc_log_snapshot_alloc()
83 	snapshot->num_chunks = DIV_ROUND_UP(snapshot->size, GUC_LOG_CHUNK_SIZE);  in xe_guc_log_snapshot_alloc()
85 	snapshot->copy = kcalloc(snapshot->num_chunks, sizeof(*snapshot->copy),  in xe_guc_log_snapshot_alloc()
87 	if (!snapshot->copy)  in xe_guc_log_snapshot_alloc()
90 	remain = snapshot->size;  in xe_guc_log_snapshot_alloc()
91 	for (i = 0; i < snapshot->num_chunks; i++) {  in xe_guc_log_snapshot_alloc()
94 		snapshot->copy[i] = kmalloc(size, atomic ? GFP_ATOMIC : GFP_KERNEL);  in xe_guc_log_snapshot_alloc()
95 		if (!snapshot->copy[i])  in xe_guc_log_snapshot_alloc()
100 	return snapshot;  in xe_guc_log_snapshot_alloc()
103 	for (i = 0; i < snapshot->num_chunks; i++)  in xe_guc_log_snapshot_alloc()
104 		kfree(snapshot->copy[i]);  in xe_guc_log_snapshot_alloc()
105 	kfree(snapshot->copy);  in xe_guc_log_snapshot_alloc()
107 	kfree(snapshot);  in xe_guc_log_snapshot_alloc()
112  * xe_guc_log_snapshot_free - free a previously captured GuC log snapshot
113  * @snapshot: GuC log snapshot structure
115  * Return: pointer to a newly allocated snapshot object or null if out of memory. Caller is
116  * responsible for calling xe_guc_log_snapshot_free when done with the snapshot.
118 void xe_guc_log_snapshot_free(struct xe_guc_log_snapshot *snapshot)  in xe_guc_log_snapshot_free()  argument
122 	if (!snapshot)  in xe_guc_log_snapshot_free()
125 	if (snapshot->copy) {  in xe_guc_log_snapshot_free()
126 		for (i = 0; i < snapshot->num_chunks; i++)  in xe_guc_log_snapshot_free()
127 			kfree(snapshot->copy[i]);  in xe_guc_log_snapshot_free()
128 		kfree(snapshot->copy);  in xe_guc_log_snapshot_free()
131 	kfree(snapshot);  in xe_guc_log_snapshot_free()
135  * xe_guc_log_snapshot_capture - create a new snapshot copy the GuC log for later dumping
139  * Return: pointer to a newly allocated snapshot object or null if out of memory. Caller is
140  * responsible for calling xe_guc_log_snapshot_free when done with the snapshot.
144 	struct xe_guc_log_snapshot *snapshot;  in xe_guc_log_snapshot_capture()  local
155 	snapshot = xe_guc_log_snapshot_alloc(log, atomic);  in xe_guc_log_snapshot_capture()
156 	if (!snapshot)  in xe_guc_log_snapshot_capture()
159 	remain = snapshot->size;  in xe_guc_log_snapshot_capture()
160 	for (i = 0; i < snapshot->num_chunks; i++) {  in xe_guc_log_snapshot_capture()
163 		xe_map_memcpy_from(xe, snapshot->copy[i], &log->bo->vmap,  in xe_guc_log_snapshot_capture()
170 		snapshot->stamp = ~0ULL;  in xe_guc_log_snapshot_capture()
172 		snapshot->stamp = xe_mmio_read64_2x32(&gt->mmio, GUC_PMTIMESTAMP_LO);  in xe_guc_log_snapshot_capture()
175 	snapshot->ktime = ktime_get_boottime_ns();  in xe_guc_log_snapshot_capture()
176 	snapshot->level = log->level;  in xe_guc_log_snapshot_capture()
177 	snapshot->ver_found = guc->fw.versions.found[XE_UC_FW_VER_RELEASE];  in xe_guc_log_snapshot_capture()
178 	snapshot->ver_want = guc->fw.versions.wanted;  in xe_guc_log_snapshot_capture()
179 	snapshot->path = guc->fw.path;  in xe_guc_log_snapshot_capture()
181 	return snapshot;  in xe_guc_log_snapshot_capture()
186  * @snapshot: a snapshot of the GuC log
189 void xe_guc_log_snapshot_print(struct xe_guc_log_snapshot *snapshot, struct drm_printer *p)  in xe_guc_log_snapshot_print()  argument
194 	if (!snapshot) {  in xe_guc_log_snapshot_print()
195 		drm_printf(p, "GuC log snapshot not allocated!\n");  in xe_guc_log_snapshot_print()
199 	drm_printf(p, "GuC firmware: %s\n", snapshot->path);  in xe_guc_log_snapshot_print()
201 		   snapshot->ver_found.major, snapshot->ver_found.minor, snapshot->ver_found.patch,  in xe_guc_log_snapshot_print()
202 		   snapshot->ver_want.major, snapshot->ver_want.minor, snapshot->ver_want.patch);  in xe_guc_log_snapshot_print()
203 	drm_printf(p, "Kernel timestamp: 0x%08llX [%llu]\n", snapshot->ktime, snapshot->ktime);  in xe_guc_log_snapshot_print()
204 	drm_printf(p, "GuC timestamp: 0x%08llX [%llu]\n", snapshot->stamp, snapshot->stamp);  in xe_guc_log_snapshot_print()
205 	drm_printf(p, "Log level: %u\n", snapshot->level);  in xe_guc_log_snapshot_print()
207 	drm_printf(p, "[LOG].length: 0x%zx\n", snapshot->size);  in xe_guc_log_snapshot_print()
208 	remain = snapshot->size;  in xe_guc_log_snapshot_print()
209 	for (i = 0; i < snapshot->num_chunks; i++) {  in xe_guc_log_snapshot_print()
212 		char suffix = i == snapshot->num_chunks - 1 ? '\n' : 0;  in xe_guc_log_snapshot_print()
214 		xe_print_blob_ascii85(p, prefix, suffix, snapshot->copy[i], 0, size);  in xe_guc_log_snapshot_print()
244 	struct xe_guc_log_snapshot *snapshot;  in xe_guc_log_print()  local
248 	snapshot = xe_guc_log_snapshot_capture(log, false);  in xe_guc_log_print()
250 	xe_guc_log_snapshot_print(snapshot, p);  in xe_guc_log_print()
251 	xe_guc_log_snapshot_free(snapshot);  in xe_guc_log_print()