[agd5f:drm-next-5.20 37/54] drivers/gpu/drm/amd/amdgpu/psp_v13_0.c:534:9: error: call to undeclared function 'vmalloc'; ISO C99 and later do not support implicit function declarations
From: kernel test robot
Date: Sat Jul 30 2022 - 12:05:21 EST
tree: https://gitlab.freedesktop.org/agd5f/linux.git drm-next-5.20
head: 64f991590ff4410041a70ee7ec2db079bc953929
commit: 6fdd2077ec03f4b34d127a1713ca19248539d6e0 [37/54] drm/amd/amdgpu: add memory training support for PSP_V13
config: mips-buildonly-randconfig-r005-20220729 (https://download.01.org/0day-ci/archive/20220730/202207302311.0n5LnCGv-lkp@xxxxxxxxx/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 52cd00cabf479aa7eb6dbb063b7ba41ea57bce9e)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install mips cross compiling tool for clang build
# apt-get install binutils-mips-linux-gnu
git remote add agd5f https://gitlab.freedesktop.org/agd5f/linux.git
git fetch --no-tags agd5f drm-next-5.20
git checkout 6fdd2077ec03f4b34d127a1713ca19248539d6e0
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash drivers/gpu/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@xxxxxxxxx>
All errors (new ones prefixed by >>):
>> drivers/gpu/drm/amd/amdgpu/psp_v13_0.c:534:9: error: call to undeclared function 'vmalloc'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
buf = vmalloc(sz);
^
>> drivers/gpu/drm/amd/amdgpu/psp_v13_0.c:534:7: error: incompatible integer to pointer conversion assigning to 'void *' from 'int' [-Wint-conversion]
buf = vmalloc(sz);
^ ~~~~~~~~~~~
>> drivers/gpu/drm/amd/amdgpu/psp_v13_0.c:545:5: error: call to undeclared function 'vfree'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
vfree(buf);
^
drivers/gpu/drm/amd/amdgpu/psp_v13_0.c:552:4: error: call to undeclared function 'vfree'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
vfree(buf);
^
drivers/gpu/drm/amd/amdgpu/psp_v13_0.c:555:4: error: call to undeclared function 'vfree'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
vfree(buf);
^
5 errors generated.
vim +/vmalloc +534 drivers/gpu/drm/amd/amdgpu/psp_v13_0.c
457
458
459 static int psp_v13_0_memory_training(struct psp_context *psp, uint32_t ops)
460 {
461 struct psp_memory_training_context *ctx = &psp->mem_train_ctx;
462 uint32_t *pcache = (uint32_t *)ctx->sys_cache;
463 struct amdgpu_device *adev = psp->adev;
464 uint32_t p2c_header[4];
465 uint32_t sz;
466 void *buf;
467 int ret, idx;
468
469 if (ctx->init == PSP_MEM_TRAIN_NOT_SUPPORT) {
470 dev_dbg(adev->dev, "Memory training is not supported.\n");
471 return 0;
472 } else if (ctx->init != PSP_MEM_TRAIN_INIT_SUCCESS) {
473 dev_err(adev->dev, "Memory training initialization failure.\n");
474 return -EINVAL;
475 }
476
477 if (psp_v13_0_is_sos_alive(psp)) {
478 dev_dbg(adev->dev, "SOS is alive, skip memory training.\n");
479 return 0;
480 }
481
482 amdgpu_device_vram_access(adev, ctx->p2c_train_data_offset, p2c_header, sizeof(p2c_header), false);
483 dev_dbg(adev->dev, "sys_cache[%08x,%08x,%08x,%08x] p2c_header[%08x,%08x,%08x,%08x]\n",
484 pcache[0], pcache[1], pcache[2], pcache[3],
485 p2c_header[0], p2c_header[1], p2c_header[2], p2c_header[3]);
486
487 if (ops & PSP_MEM_TRAIN_SEND_SHORT_MSG) {
488 dev_dbg(adev->dev, "Short training depends on restore.\n");
489 ops |= PSP_MEM_TRAIN_RESTORE;
490 }
491
492 if ((ops & PSP_MEM_TRAIN_RESTORE) &&
493 pcache[0] != MEM_TRAIN_SYSTEM_SIGNATURE) {
494 dev_dbg(adev->dev, "sys_cache[0] is invalid, restore depends on save.\n");
495 ops |= PSP_MEM_TRAIN_SAVE;
496 }
497
498 if (p2c_header[0] == MEM_TRAIN_SYSTEM_SIGNATURE &&
499 !(pcache[0] == MEM_TRAIN_SYSTEM_SIGNATURE &&
500 pcache[3] == p2c_header[3])) {
501 dev_dbg(adev->dev, "sys_cache is invalid or out-of-date, need save training data to sys_cache.\n");
502 ops |= PSP_MEM_TRAIN_SAVE;
503 }
504
505 if ((ops & PSP_MEM_TRAIN_SAVE) &&
506 p2c_header[0] != MEM_TRAIN_SYSTEM_SIGNATURE) {
507 dev_dbg(adev->dev, "p2c_header[0] is invalid, save depends on long training.\n");
508 ops |= PSP_MEM_TRAIN_SEND_LONG_MSG;
509 }
510
511 if (ops & PSP_MEM_TRAIN_SEND_LONG_MSG) {
512 ops &= ~PSP_MEM_TRAIN_SEND_SHORT_MSG;
513 ops |= PSP_MEM_TRAIN_SAVE;
514 }
515
516 dev_dbg(adev->dev, "Memory training ops:%x.\n", ops);
517
518 if (ops & PSP_MEM_TRAIN_SEND_LONG_MSG) {
519 /*
520 * Long training will encroach a certain amount on the bottom of VRAM;
521 * save the content from the bottom of VRAM to system memory
522 * before training, and restore it after training to avoid
523 * VRAM corruption.
524 */
525 sz = GDDR6_MEM_TRAINING_ENCROACHED_SIZE;
526
527 if (adev->gmc.visible_vram_size < sz || !adev->mman.aper_base_kaddr) {
528 dev_err(adev->dev, "visible_vram_size %llx or aper_base_kaddr %p is not initialized.\n",
529 adev->gmc.visible_vram_size,
530 adev->mman.aper_base_kaddr);
531 return -EINVAL;
532 }
533
> 534 buf = vmalloc(sz);
535 if (!buf) {
536 dev_err(adev->dev, "failed to allocate system memory.\n");
537 return -ENOMEM;
538 }
539
540 if (drm_dev_enter(adev_to_drm(adev), &idx)) {
541 memcpy_fromio(buf, adev->mman.aper_base_kaddr, sz);
542 ret = psp_v13_0_memory_training_send_msg(psp, PSP_BL__DRAM_LONG_TRAIN);
543 if (ret) {
544 DRM_ERROR("Send long training msg failed.\n");
> 545 vfree(buf);
546 drm_dev_exit(idx);
547 return ret;
548 }
549
550 memcpy_toio(adev->mman.aper_base_kaddr, buf, sz);
551 adev->hdp.funcs->flush_hdp(adev, NULL);
552 vfree(buf);
553 drm_dev_exit(idx);
554 } else {
555 vfree(buf);
556 return -ENODEV;
557 }
558 }
559
560 if (ops & PSP_MEM_TRAIN_SAVE) {
561 amdgpu_device_vram_access(psp->adev, ctx->p2c_train_data_offset, ctx->sys_cache, ctx->train_data_size, false);
562 }
563
564 if (ops & PSP_MEM_TRAIN_RESTORE) {
565 amdgpu_device_vram_access(psp->adev, ctx->c2p_train_data_offset, ctx->sys_cache, ctx->train_data_size, true);
566 }
567
568 if (ops & PSP_MEM_TRAIN_SEND_SHORT_MSG) {
569 ret = psp_v13_0_memory_training_send_msg(psp, (amdgpu_force_long_training > 0) ?
570 PSP_BL__DRAM_LONG_TRAIN : PSP_BL__DRAM_SHORT_TRAIN);
571 if (ret) {
572 dev_err(adev->dev, "send training msg failed.\n");
573 return ret;
574 }
575 }
576 ctx->training_cnt++;
577 return 0;
578 }
579
--
0-DAY CI Kernel Test Service
https://01.org/lkp