tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 86cfccb66937dd6cbf26ed619958b9e587e6a115 commit: 8b9d5d63a7193156b6b397c4f5078efbc200695f drm/nouveau/bo: split buffer move functions into their own source files date: 2 weeks ago config: i386-randconfig-m021-20200807 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; smatch warnings: drivers/gpu/drm/nouveau/nouveau_bo5039.c:39 nv50_bo_move_m2mf() warn: should 'new_reg->num_pages << 12' be a 64 bit type? vim +39 drivers/gpu/drm/nouveau/nouveau_bo5039.c 33 34 int 35 nv50_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo, 36 struct ttm_mem_reg *old_reg, struct ttm_mem_reg *new_reg) 37 { 38 struct nouveau_mem *mem = nouveau_mem(old_reg); 40 u64 src_offset = mem->vma[0].addr; 41 u64 dst_offset = mem->vma[1].addr; 42 int src_tiled = !!mem->kind; 43 int dst_tiled = !!nouveau_mem(new_reg)->kind; 44 int ret; 45 46 while (length) { 47 u32 amount, stride, height; 48 49 ret = RING_SPACE(chan, 18 + 6 * (src_tiled + dst_tiled)); 50 if (ret) 51 return ret; 52 53 amount = min(length, (u64)(4 * 1024 * 1024)); 54 stride = 16 * 4; 55 height = amount / stride; 56 57 if (src_tiled) { 58 BEGIN_NV04(chan, NvSubCopy, 0x0200, 7); 59 OUT_RING (chan, 0); 60 OUT_RING (chan, 0); 61 OUT_RING (chan, stride); 62 OUT_RING (chan, height); 63 OUT_RING (chan, 1); 64 OUT_RING (chan, 0); 65 OUT_RING (chan, 0); 66 } else { 67 BEGIN_NV04(chan, NvSubCopy, 0x0200, 1); 68 OUT_RING (chan, 1); 69 } 70 if (dst_tiled) { 71 BEGIN_NV04(chan, NvSubCopy, 0x021c, 7); 72 OUT_RING (chan, 0); 73 OUT_RING (chan, 0); 74 OUT_RING (chan, stride); 75 OUT_RING (chan, height); 76 OUT_RING (chan, 1); 77 OUT_RING (chan, 0); 78 OUT_RING (chan, 0); 79 } else { 80 BEGIN_NV04(chan, NvSubCopy, 0x021c, 1); 81 OUT_RING (chan, 1); 82 } 83 84 BEGIN_NV04(chan, NvSubCopy, 0x0238, 2); 85 OUT_RING (chan, upper_32_bits(src_offset)); 86 OUT_RING (chan, upper_32_bits(dst_offset)); 87 BEGIN_NV04(chan, NvSubCopy, 0x030c, 8); 88 OUT_RING (chan, lower_32_bits(src_offset)); 89 OUT_RING (chan, lower_32_bits(dst_offset)); 90 OUT_RING (chan, stride); 91 OUT_RING (chan, stride); 92 OUT_RING (chan, stride); 93 OUT_RING (chan, height); 94 OUT_RING (chan, 0x00000101); 95 OUT_RING (chan, 0x00000000); 96 BEGIN_NV04(chan, NvSubCopy, NV_MEMORY_TO_MEMORY_FORMAT_NOP, 1); 97 OUT_RING (chan, 0); 98 99 length -= amount; 100 src_offset += amount; 101 dst_offset += amount; 102 } 103 104 return 0; 105 } 106 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org