Hi Qiang,
I love your patch! Yet something to improve:
[auto build test ERROR on drm-tip/drm-tip] [cannot apply to drm-exynos/exynos-drm-next drm-intel/for-linux-next tegra-drm/drm/tegra/for-next linus/master v5.6-rc2 next-20200221] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/Qiang-Yu/drm-lima-add-error-debug-f... base: git://anongit.freedesktop.org/drm/drm-tip drm-tip config: mips-allyesconfig (attached as .config) compiler: mips-linux-gcc (GCC) 7.5.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=7.5.0 make.cross ARCH=mips
If you fix the issue, kindly add following tag Reported-by: kbuild test robot lkp@intel.com
All errors (new ones prefixed by >>):
drivers/gpu/drm/lima/lima_sched.c: In function 'lima_sched_build_error_task_list':
drivers/gpu/drm/lima/lima_sched.c:347:11: error: implicit declaration of function 'vmap'; did you mean 'bmap'? [-Werror=implicit-function-declaration]
data = vmap(bo->base.pages, bo->heap_size >> PAGE_SHIFT, ^~~~ bmap
drivers/gpu/drm/lima/lima_sched.c:348:9: error: 'VM_MAP' undeclared (first use in this function); did you mean 'VM_MPX'?
VM_MAP, pgprot_writecombine(PAGE_KERNEL)); ^~~~~~ VM_MPX drivers/gpu/drm/lima/lima_sched.c:348:9: note: each undeclared identifier is reported only once for each function it appears in
drivers/gpu/drm/lima/lima_sched.c:356:4: error: implicit declaration of function 'vunmap'; did you mean 'kunmap'? [-Werror=implicit-function-declaration]
vunmap(data); ^~~~~~ kunmap cc1: some warnings being treated as errors
vim +347 drivers/gpu/drm/lima/lima_sched.c
258 259 static void lima_sched_build_error_task_list(struct lima_sched_task *task) 260 { 261 struct lima_sched_error_task *et; 262 struct lima_sched_pipe *pipe = to_lima_pipe(task->base.sched); 263 struct lima_ip *ip = pipe->processor[0]; 264 int pipe_id = ip->id == lima_ip_gp ? lima_pipe_gp : lima_pipe_pp; 265 struct lima_device *dev = ip->dev; 266 struct lima_sched_context *sched_ctx = 267 container_of(task->base.entity, struct lima_sched_context, base); 268 struct lima_ctx *ctx = 269 container_of(sched_ctx, struct lima_ctx, context[pipe_id]); 270 struct lima_dump_task *dt; 271 struct lima_dump_chunk *chunk; 272 struct lima_dump_chunk_pid *pid_chunk; 273 struct lima_dump_chunk_buffer *buffer_chunk; 274 uint32_t size, task_size, mem_size; 275 int i; 276 277 mutex_lock(&dev->error_task_list_lock); 278 279 if (dev->dump.num_tasks >= lima_max_error_tasks) { 280 dev_info(dev->dev, "fail to save task state: error task list is full\n"); 281 goto out; 282 } 283 284 /* frame chunk */ 285 size = sizeof(struct lima_dump_chunk) + pipe->frame_size; 286 /* process name chunk */ 287 size += sizeof(struct lima_dump_chunk) + sizeof(ctx->pname); 288 /* pid chunk */ 289 size += sizeof(struct lima_dump_chunk); 290 /* buffer chunks */ 291 for (i = 0; i < task->num_bos; i++) { 292 struct lima_bo *bo = task->bos[i]; 293 294 size += sizeof(struct lima_dump_chunk); 295 size += bo->heap_size ? bo->heap_size : lima_bo_size(bo); 296 } 297 298 task_size = size + sizeof(struct lima_dump_task); 299 mem_size = task_size + sizeof(*et); 300 et = kvmalloc(mem_size, GFP_KERNEL); 301 if (!et) { 302 dev_err(dev->dev, "fail to alloc task dump buffer of size %x\n", 303 mem_size); 304 goto out; 305 } 306 307 et->data = et + 1; 308 et->size = task_size; 309 310 dt = et->data; 311 memset(dt, 0, sizeof(*dt)); 312 dt->id = pipe_id; 313 dt->size = size; 314 315 chunk = (struct lima_dump_chunk *)(dt + 1); 316 memset(chunk, 0, sizeof(*chunk)); 317 chunk->id = LIMA_DUMP_CHUNK_FRAME; 318 chunk->size = pipe->frame_size; 319 memcpy(chunk + 1, task->frame, pipe->frame_size); 320 dt->num_chunks++; 321 322 chunk = (void *)(chunk + 1) + chunk->size; 323 memset(chunk, 0, sizeof(*chunk)); 324 chunk->id = LIMA_DUMP_CHUNK_PROCESS_NAME; 325 chunk->size = sizeof(ctx->pname); 326 memcpy(chunk + 1, ctx->pname, sizeof(ctx->pname)); 327 dt->num_chunks++; 328 329 pid_chunk = (void *)(chunk + 1) + chunk->size; 330 memset(pid_chunk, 0, sizeof(*pid_chunk)); 331 pid_chunk->id = LIMA_DUMP_CHUNK_PROCESS_ID; 332 pid_chunk->pid = ctx->pid; 333 dt->num_chunks++; 334 335 buffer_chunk = (void *)(pid_chunk + 1) + pid_chunk->size; 336 for (i = 0; i < task->num_bos; i++) { 337 struct lima_bo *bo = task->bos[i]; 338 void *data; 339 340 memset(buffer_chunk, 0, sizeof(*buffer_chunk)); 341 buffer_chunk->id = LIMA_DUMP_CHUNK_BUFFER; 342 buffer_chunk->va = lima_vm_get_va(task->vm, bo); 343 344 if (bo->heap_size) { 345 buffer_chunk->size = bo->heap_size; 346
347 data = vmap(bo->base.pages, bo->heap_size >> PAGE_SHIFT, 348 VM_MAP, pgprot_writecombine(PAGE_KERNEL));
349 if (!data) { 350 kvfree(et); 351 goto out; 352 } 353 354 memcpy(buffer_chunk + 1, data, buffer_chunk->size); 355
356 vunmap(data);
357 } else { 358 buffer_chunk->size = lima_bo_size(bo); 359 360 data = drm_gem_shmem_vmap(&bo->base.base); 361 if (IS_ERR_OR_NULL(data)) { 362 kvfree(et); 363 goto out; 364 } 365 366 memcpy(buffer_chunk + 1, data, buffer_chunk->size); 367 368 drm_gem_shmem_vunmap(&bo->base.base, data); 369 } 370 371 buffer_chunk = (void *)(buffer_chunk + 1) + buffer_chunk->size; 372 dt->num_chunks++; 373 } 374 375 list_add(&et->list, &dev->error_task_list); 376 dev->dump.size += et->size; 377 dev->dump.num_tasks++; 378 379 dev_info(dev->dev, "save error task state success\n"); 380 381 out: 382 mutex_unlock(&dev->error_task_list_lock); 383 } 384
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