Hi Jani, First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 444fc5cde64330661bf59944c43844e7d4c2ccd8 commit: be14312472e93d0c9c8c3ea8ef7d4eb59ed73f8f drm/r128: make ATI PCI GART part of its only user, r128 date: 6 months ago config: ia64-randconfig-s031-20200527 (attached as .config) compiler: ia64-linux-gcc (GCC) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.1-240-gf0fe1cd9-dirty git checkout be14312472e93d0c9c8c3ea8ef7d4eb59ed73f8f # save the attached .config to linux build tree make W=1 C=1 ARCH=ia64 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <l...@intel.com> sparse warnings: (new ones prefixed by >>) >> drivers/gpu/drm/r128/ati_pcigart.c:188:52: sparse: sparse: incorrect type in >> assignment (different base types) @@ expected unsigned int [usertype] @@ >> got restricted __le32 [usertype] @@ drivers/gpu/drm/r128/ati_pcigart.c:188:52: sparse: expected unsigned int [usertype] drivers/gpu/drm/r128/ati_pcigart.c:188:52: sparse: got restricted __le32 [usertype] drivers/gpu/drm/r128/ati_pcigart.c:200:9: sparse: sparse: undefined identifier 'wbinvd' vim +188 drivers/gpu/drm/r128/ati_pcigart.c ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 99 55910517af381eb drivers/char/drm/ati_pcigart.c Dave Airlie 2007-07-11 100 int drm_ati_pcigart_init(struct drm_device *dev, struct drm_ati_pcigart_info *gart_info) ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 101 { 5a7aad9a559a548 drivers/gpu/drm/ati_pcigart.c David Miller 2009-02-12 102 struct drm_local_map *map = &gart_info->mapping; 55910517af381eb drivers/char/drm/ati_pcigart.c Dave Airlie 2007-07-11 103 struct drm_sg_mem *entry = dev->sg; f26c473cdf557ea drivers/char/drm/ati_pcigart.c Dave Airlie 2006-01-02 104 void *address = NULL; ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 105 unsigned long pages; 6abf66018f7fe23 drivers/gpu/drm/ati_pcigart.c Dave Airlie 2009-02-26 106 u32 *pci_gart = NULL, page_base, gart_idx; b05c23851ab820b drivers/char/drm/ati_pcigart.c Dave Airlie 2008-03-17 107 dma_addr_t bus_address = 0; c27889ca3bb8bdc drivers/gpu/drm/ati_pcigart.c Dan Carpenter 2018-12-17 108 int i, j, ret = -ENOMEM; d30333bbabb4a2c drivers/gpu/drm/ati_pcigart.c David Miller 2009-02-15 109 int max_ati_pages, max_real_pages; ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 110 ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 111 if (!entry) { ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 112 DRM_ERROR("no scatter/gather memory!\n"); ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 113 goto done; ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 114 } ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 115 b5e89ed53ed8d24 drivers/char/drm/ati_pcigart.c Dave Airlie 2005-09-25 116 if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) { ea98a92ff18c03b drivers/char/drm/ati_pcigart.c Dave Airlie 2005-09-11 117 DRM_DEBUG("PCI: no table in VRAM: using normal RAM\n"); ea98a92ff18c03b drivers/char/drm/ati_pcigart.c Dave Airlie 2005-09-11 118 e6be8d9d17bd440 drivers/gpu/drm/ati_pcigart.c Zhenyu Wang 2010-01-05 119 if (pci_set_dma_mask(dev->pdev, gart_info->table_mask)) { e6be8d9d17bd440 drivers/gpu/drm/ati_pcigart.c Zhenyu Wang 2010-01-05 120 DRM_ERROR("fail to set dma mask to 0x%Lx\n", d7748bacbbee80b drivers/gpu/drm/ati_pcigart.c Randy Dunlap 2010-02-02 121 (unsigned long long)gart_info->table_mask); c27889ca3bb8bdc drivers/gpu/drm/ati_pcigart.c Dan Carpenter 2018-12-17 122 ret = -EFAULT; e6be8d9d17bd440 drivers/gpu/drm/ati_pcigart.c Zhenyu Wang 2010-01-05 123 goto done; e6be8d9d17bd440 drivers/gpu/drm/ati_pcigart.c Zhenyu Wang 2010-01-05 124 } e6be8d9d17bd440 drivers/gpu/drm/ati_pcigart.c Zhenyu Wang 2010-01-05 125 b05c23851ab820b drivers/char/drm/ati_pcigart.c Dave Airlie 2008-03-17 126 ret = drm_ati_alloc_pcigart_table(dev, gart_info); b05c23851ab820b drivers/char/drm/ati_pcigart.c Dave Airlie 2008-03-17 127 if (ret) { ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 128 DRM_ERROR("cannot allocate PCI GART page!\n"); ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 129 goto done; ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 130 } ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 131 6abf66018f7fe23 drivers/gpu/drm/ati_pcigart.c Dave Airlie 2009-02-26 132 pci_gart = gart_info->table_handle->vaddr; b05c23851ab820b drivers/char/drm/ati_pcigart.c Dave Airlie 2008-03-17 133 address = gart_info->table_handle->vaddr; b05c23851ab820b drivers/char/drm/ati_pcigart.c Dave Airlie 2008-03-17 134 bus_address = gart_info->table_handle->busaddr; b5e89ed53ed8d24 drivers/char/drm/ati_pcigart.c Dave Airlie 2005-09-25 135 } else { ea98a92ff18c03b drivers/char/drm/ati_pcigart.c Dave Airlie 2005-09-11 136 address = gart_info->addr; ea98a92ff18c03b drivers/char/drm/ati_pcigart.c Dave Airlie 2005-09-11 137 bus_address = gart_info->bus_addr; f67e74ca690d9f1 drivers/char/drm/ati_pcigart.c Andrew Morton 2008-03-28 138 DRM_DEBUG("PCI: Gart Table: VRAM %08LX mapped at %08lX\n", f67e74ca690d9f1 drivers/char/drm/ati_pcigart.c Andrew Morton 2008-03-28 139 (unsigned long long)bus_address, f67e74ca690d9f1 drivers/char/drm/ati_pcigart.c Andrew Morton 2008-03-28 140 (unsigned long)address); ea98a92ff18c03b drivers/char/drm/ati_pcigart.c Dave Airlie 2005-09-11 141 } ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 142 ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 143 d30333bbabb4a2c drivers/gpu/drm/ati_pcigart.c David Miller 2009-02-15 144 max_ati_pages = (gart_info->table_size / sizeof(u32)); d30333bbabb4a2c drivers/gpu/drm/ati_pcigart.c David Miller 2009-02-15 145 max_real_pages = max_ati_pages / (PAGE_SIZE / ATI_PCIGART_PAGE_SIZE); d30333bbabb4a2c drivers/gpu/drm/ati_pcigart.c David Miller 2009-02-15 146 pages = (entry->pages <= max_real_pages) d30333bbabb4a2c drivers/gpu/drm/ati_pcigart.c David Miller 2009-02-15 147 ? entry->pages : max_real_pages; ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 148 5a7aad9a559a548 drivers/gpu/drm/ati_pcigart.c David Miller 2009-02-12 149 if (gart_info->gart_table_location == DRM_ATI_GART_MAIN) { d30333bbabb4a2c drivers/gpu/drm/ati_pcigart.c David Miller 2009-02-15 150 memset(pci_gart, 0, max_ati_pages * sizeof(u32)); 5a7aad9a559a548 drivers/gpu/drm/ati_pcigart.c David Miller 2009-02-12 151 } else { 6abf66018f7fe23 drivers/gpu/drm/ati_pcigart.c Dave Airlie 2009-02-26 152 memset_io((void __iomem *)map->handle, 0, max_ati_pages * sizeof(u32)); 5a7aad9a559a548 drivers/gpu/drm/ati_pcigart.c David Miller 2009-02-12 153 } ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 154 5a7aad9a559a548 drivers/gpu/drm/ati_pcigart.c David Miller 2009-02-12 155 gart_idx = 0; ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 156 for (i = 0; i < pages; i++) { ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 157 /* we need to support large memory configurations */ 7ec700fcaf4f01a drivers/char/drm/ati_pcigart.c Dave Airlie 2008-06-19 158 entry->busaddr[i] = pci_map_page(dev->pdev, entry->pagelist[i], 296c6ae0e9b5ced drivers/gpu/drm/ati_pcigart.c David Miller 2009-02-12 159 0, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); a30f6fb7ce86275 drivers/gpu/drm/ati_pcigart.c Benjamin Herrenschmidt 2010-08-10 160 if (pci_dma_mapping_error(dev->pdev, entry->busaddr[i])) { ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 161 DRM_ERROR("unable to map PCIGART pages!\n"); ea98a92ff18c03b drivers/char/drm/ati_pcigart.c Dave Airlie 2005-09-11 162 drm_ati_pcigart_cleanup(dev, gart_info); f26c473cdf557ea drivers/char/drm/ati_pcigart.c Dave Airlie 2006-01-02 163 address = NULL; ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 164 bus_address = 0; c27889ca3bb8bdc drivers/gpu/drm/ati_pcigart.c Dan Carpenter 2018-12-17 165 ret = -ENOMEM; ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 166 goto done; ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 167 } ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 168 page_base = (u32) entry->busaddr[i]; ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 169 ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 170 for (j = 0; j < (PAGE_SIZE / ATI_PCIGART_PAGE_SIZE); j++) { 03fda35d109b0a1 drivers/gpu/drm/ati_pcigart.c Sam Ravnborg 2019-07-18 171 u32 offset; 5a7aad9a559a548 drivers/gpu/drm/ati_pcigart.c David Miller 2009-02-12 172 u32 val; 5a7aad9a559a548 drivers/gpu/drm/ati_pcigart.c David Miller 2009-02-12 173 f2b04cd219e5c0f drivers/char/drm/ati_pcigart.c Dave Airlie 2007-05-08 174 switch(gart_info->gart_reg_if) { f2b04cd219e5c0f drivers/char/drm/ati_pcigart.c Dave Airlie 2007-05-08 175 case DRM_ATI_GART_IGP: 5a7aad9a559a548 drivers/gpu/drm/ati_pcigart.c David Miller 2009-02-12 176 val = page_base | 0xc; f2b04cd219e5c0f drivers/char/drm/ati_pcigart.c Dave Airlie 2007-05-08 177 break; f2b04cd219e5c0f drivers/char/drm/ati_pcigart.c Dave Airlie 2007-05-08 178 case DRM_ATI_GART_PCIE: 5a7aad9a559a548 drivers/gpu/drm/ati_pcigart.c David Miller 2009-02-12 179 val = (page_base >> 8) | 0xc; f2b04cd219e5c0f drivers/char/drm/ati_pcigart.c Dave Airlie 2007-05-08 180 break; f2b04cd219e5c0f drivers/char/drm/ati_pcigart.c Dave Airlie 2007-05-08 181 default: f2b04cd219e5c0f drivers/char/drm/ati_pcigart.c Dave Airlie 2007-05-08 182 case DRM_ATI_GART_PCI: 5a7aad9a559a548 drivers/gpu/drm/ati_pcigart.c David Miller 2009-02-12 183 val = page_base; f2b04cd219e5c0f drivers/char/drm/ati_pcigart.c Dave Airlie 2007-05-08 184 break; f2b04cd219e5c0f drivers/char/drm/ati_pcigart.c Dave Airlie 2007-05-08 185 } 5a7aad9a559a548 drivers/gpu/drm/ati_pcigart.c David Miller 2009-02-12 186 if (gart_info->gart_table_location == 03fda35d109b0a1 drivers/gpu/drm/ati_pcigart.c Sam Ravnborg 2019-07-18 187 DRM_ATI_GART_MAIN) { 5a7aad9a559a548 drivers/gpu/drm/ati_pcigart.c David Miller 2009-02-12 @188 pci_gart[gart_idx] = cpu_to_le32(val); 03fda35d109b0a1 drivers/gpu/drm/ati_pcigart.c Sam Ravnborg 2019-07-18 189 } else { 03fda35d109b0a1 drivers/gpu/drm/ati_pcigart.c Sam Ravnborg 2019-07-18 190 offset = gart_idx * sizeof(u32); 03fda35d109b0a1 drivers/gpu/drm/ati_pcigart.c Sam Ravnborg 2019-07-18 191 writel(val, (void __iomem *)map->handle + offset); 03fda35d109b0a1 drivers/gpu/drm/ati_pcigart.c Sam Ravnborg 2019-07-18 192 } 5a7aad9a559a548 drivers/gpu/drm/ati_pcigart.c David Miller 2009-02-12 193 gart_idx++; ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 194 page_base += ATI_PCIGART_PAGE_SIZE; ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 195 } ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 196 } c27889ca3bb8bdc drivers/gpu/drm/ati_pcigart.c Dan Carpenter 2018-12-17 197 ret = 0; ^1da177e4c3f415 drivers/char/drm/ati_pcigart.c Linus Torvalds 2005-04-16 198 :::::: The code at line 188 was first introduced by commit :::::: 5a7aad9a559a5488cbef7aa3d4d96fc28220b8ae drm: ati_pcigart: Do not access I/O MEM space using pointer derefs. :::::: TO: David Miller <da...@davemloft.net> :::::: CC: Dave Airlie <airl...@redhat.com> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
.config.gz
Description: application/gzip
