tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 7c5e07b73ff3011c9b82d4a3286a3362b951ad2b commit: d803336abdbc1bfacdb32b2cf9f4fdbee072b8ee [4676/13542] ARM: mm: kill unused runtime hook arch_iounmap() config: arm-randconfig-s041-20220728 (https://download.01.org/0day-ci/archive/20220729/202207290016.kJUuouRz-lkp@xxxxxxxxx/config) compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=d803336abdbc1bfacdb32b2cf9f4fdbee072b8ee git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout d803336abdbc1bfacdb32b2cf9f4fdbee072b8ee # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm SHELL=/bin/bash drivers/gpu/drm/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) drivers/gpu/drm/drm_bufs.c:227:45: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *handle @@ got void [noderef] __iomem * @@ drivers/gpu/drm/drm_bufs.c:227:45: sparse: expected void *handle drivers/gpu/drm/drm_bufs.c:227:45: sparse: got void [noderef] __iomem * drivers/gpu/drm/drm_bufs.c:230:45: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *handle @@ got void [noderef] __iomem * @@ drivers/gpu/drm/drm_bufs.c:230:45: sparse: expected void *handle drivers/gpu/drm/drm_bufs.c:230:45: sparse: got void [noderef] __iomem * >> drivers/gpu/drm/drm_bufs.c:346:36: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *io_addr @@ got void *handle @@ drivers/gpu/drm/drm_bufs.c:346:36: sparse: expected void volatile [noderef] __iomem *io_addr drivers/gpu/drm/drm_bufs.c:346:36: sparse: got void *handle drivers/gpu/drm/drm_bufs.c:363:36: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *io_addr @@ got void *handle @@ drivers/gpu/drm/drm_bufs.c:363:36: sparse: expected void volatile [noderef] __iomem *io_addr drivers/gpu/drm/drm_bufs.c:363:36: sparse: got void *handle drivers/gpu/drm/drm_bufs.c:540:28: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *io_addr @@ got void *handle @@ drivers/gpu/drm/drm_bufs.c:540:28: sparse: expected void volatile [noderef] __iomem *io_addr drivers/gpu/drm/drm_bufs.c:540:28: sparse: got void *handle -- drivers/gpu/drm/drm_memory.c:115:29: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *handle @@ got void [noderef] __iomem * @@ drivers/gpu/drm/drm_memory.c:115:29: sparse: expected void *handle drivers/gpu/drm/drm_memory.c:115:29: sparse: got void [noderef] __iomem * drivers/gpu/drm/drm_memory.c:124:29: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *handle @@ got void [noderef] __iomem * @@ drivers/gpu/drm/drm_memory.c:124:29: sparse: expected void *handle drivers/gpu/drm/drm_memory.c:124:29: sparse: got void [noderef] __iomem * >> drivers/gpu/drm/drm_memory.c:136:28: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *io_addr @@ got void *handle @@ drivers/gpu/drm/drm_memory.c:136:28: sparse: expected void volatile [noderef] __iomem *io_addr drivers/gpu/drm/drm_memory.c:136:28: sparse: got void *handle -- >> drivers/gpu/drm/drm_vm.c:270:44: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *io_addr @@ got void *handle @@ drivers/gpu/drm/drm_vm.c:270:44: sparse: expected void volatile [noderef] __iomem *io_addr drivers/gpu/drm/drm_vm.c:270:44: sparse: got void *handle -- >> drivers/gpu/drm/armada/armada_gem.c:63:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *io_addr @@ got void *addr @@ drivers/gpu/drm/armada/armada_gem.c:63:37: sparse: expected void volatile [noderef] __iomem *io_addr drivers/gpu/drm/armada/armada_gem.c:63:37: sparse: got void *addr drivers/gpu/drm/armada/armada_gem.c:185:28: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *addr @@ got void [noderef] __iomem * @@ drivers/gpu/drm/armada/armada_gem.c:185:28: sparse: expected void *addr drivers/gpu/drm/armada/armada_gem.c:185:28: sparse: got void [noderef] __iomem * vim +346 drivers/gpu/drm/drm_bufs.c 9a18664506dbce drivers/char/drm/drm_bufs.c Dave Airlie 2005-06-23 138 abee5491db9f33 drivers/gpu/drm/drm_bufs.c Benjamin Gaignard 2020-03-06 139 /* f77d390c9779c4 drivers/gpu/drm/drm_bufs.c Benjamin Herrenschmidt 2009-02-02 140 * Core function to create a range of memory available for mapping by a f77d390c9779c4 drivers/gpu/drm/drm_bufs.c Benjamin Herrenschmidt 2009-02-02 141 * non-root process. ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 142 * ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 143 * Adjusts the memory offset to its absolute value according to the mapping ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 144 * type. Adds the map to the map list drm_device::maplist. Adds MTRR's where ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 145 * applicable and if supported by the kernel. ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 146 */ 41c2e75e60200a drivers/gpu/drm/drm_bufs.c Benjamin Herrenschmidt 2009-02-02 147 static int drm_addmap_core(struct drm_device *dev, resource_size_t offset, c60ce623bd1613 drivers/char/drm/drm_bufs.c Dave Airlie 2007-07-11 148 unsigned int size, enum drm_map_type type, 55910517af381e drivers/char/drm/drm_bufs.c Dave Airlie 2007-07-11 149 enum drm_map_flags flags, 55910517af381e drivers/char/drm/drm_bufs.c Dave Airlie 2007-07-11 150 struct drm_map_list **maplist) ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 151 { f77d390c9779c4 drivers/gpu/drm/drm_bufs.c Benjamin Herrenschmidt 2009-02-02 152 struct drm_local_map *map; 55910517af381e drivers/char/drm/drm_bufs.c Dave Airlie 2007-07-11 153 struct drm_map_list *list; 8d153f7107ff2c drivers/char/drm/drm_bufs.c Thomas Hellstrom 2006-08-07 154 unsigned long user_token; 8d153f7107ff2c drivers/char/drm/drm_bufs.c Thomas Hellstrom 2006-08-07 155 int ret; ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 156 9a298b2acd771d drivers/gpu/drm/drm_bufs.c Eric Anholt 2009-03-24 157 map = kmalloc(sizeof(*map), GFP_KERNEL); ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 158 if (!map) ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 159 return -ENOMEM; ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 160 7ab984012a879a drivers/char/drm/drm_bufs.c Dave Airlie 2005-07-10 161 map->offset = offset; 7ab984012a879a drivers/char/drm/drm_bufs.c Dave Airlie 2005-07-10 162 map->size = size; 7ab984012a879a drivers/char/drm/drm_bufs.c Dave Airlie 2005-07-10 163 map->flags = flags; 7ab984012a879a drivers/char/drm/drm_bufs.c Dave Airlie 2005-07-10 164 map->type = type; ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 165 ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 166 /* Only allow shared memory to be removable since we only keep enough ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 167 * book keeping information about shared memory to allow for removal ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 168 * when processes fork. ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 169 */ ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 170 if ((map->flags & _DRM_REMOVABLE) && map->type != _DRM_SHM) { 9a298b2acd771d drivers/gpu/drm/drm_bufs.c Eric Anholt 2009-03-24 171 kfree(map); ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 172 return -EINVAL; ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 173 } 41c2e75e60200a drivers/gpu/drm/drm_bufs.c Benjamin Herrenschmidt 2009-02-02 174 DRM_DEBUG("offset = 0x%08llx, size = 0x%08lx, type = %d\n", 41c2e75e60200a drivers/gpu/drm/drm_bufs.c Benjamin Herrenschmidt 2009-02-02 175 (unsigned long long)map->offset, map->size, map->type); b674137755bbe2 drivers/gpu/drm/drm_bufs.c Benjamin Herrenschmidt 2009-05-18 176 b674137755bbe2 drivers/gpu/drm/drm_bufs.c Benjamin Herrenschmidt 2009-05-18 177 /* page-align _DRM_SHM maps. They are allocated here so there is no security b674137755bbe2 drivers/gpu/drm/drm_bufs.c Benjamin Herrenschmidt 2009-05-18 178 * hole created by that and it works around various broken drivers that use b674137755bbe2 drivers/gpu/drm/drm_bufs.c Benjamin Herrenschmidt 2009-05-18 179 * a non-aligned quantity to map the SAREA. --BenH b674137755bbe2 drivers/gpu/drm/drm_bufs.c Benjamin Herrenschmidt 2009-05-18 180 */ b674137755bbe2 drivers/gpu/drm/drm_bufs.c Benjamin Herrenschmidt 2009-05-18 181 if (map->type == _DRM_SHM) b674137755bbe2 drivers/gpu/drm/drm_bufs.c Benjamin Herrenschmidt 2009-05-18 182 map->size = PAGE_ALIGN(map->size); b674137755bbe2 drivers/gpu/drm/drm_bufs.c Benjamin Herrenschmidt 2009-05-18 183 41c2e75e60200a drivers/gpu/drm/drm_bufs.c Benjamin Herrenschmidt 2009-02-02 184 if ((map->offset & (~(resource_size_t)PAGE_MASK)) || (map->size & (~PAGE_MASK))) { 9a298b2acd771d drivers/gpu/drm/drm_bufs.c Eric Anholt 2009-03-24 185 kfree(map); ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 186 return -EINVAL; ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 187 } ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 188 map->mtrr = -1; ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 189 map->handle = NULL; ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 190 ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 191 switch (map->type) { ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 192 case _DRM_REGISTERS: ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 193 case _DRM_FRAME_BUFFER: 4b7fb9b5746554 drivers/gpu/drm/drm_bufs.c Jordan Crouse 2010-05-27 194 #if !defined(__sparc__) && !defined(__alpha__) && !defined(__ia64__) && !defined(__powerpc64__) && !defined(__x86_64__) && !defined(__arm__) 8d2ea6258123d7 drivers/char/drm/drm_bufs.c Dave Airlie 2006-01-11 195 if (map->offset + (map->size-1) < map->offset || ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 196 map->offset < virt_to_phys(high_memory)) { 9a298b2acd771d drivers/gpu/drm/drm_bufs.c Eric Anholt 2009-03-24 197 kfree(map); ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 198 return -EINVAL; ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 199 } ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 200 #endif 836cf0465c422e drivers/char/drm/drm_bufs.c Dave Airlie 2005-07-10 201 /* Some drivers preinitialize some maps, without the X Server 836cf0465c422e drivers/char/drm/drm_bufs.c Dave Airlie 2005-07-10 202 * needing to be aware of it. Therefore, we just return success 836cf0465c422e drivers/char/drm/drm_bufs.c Dave Airlie 2005-07-10 203 * when the server tries to create a duplicate map. 836cf0465c422e drivers/char/drm/drm_bufs.c Dave Airlie 2005-07-10 204 */ 89625eb186b9b0 drivers/char/drm/drm_bufs.c Dave Airlie 2005-09-05 205 list = drm_find_matching_map(dev, map); 89625eb186b9b0 drivers/char/drm/drm_bufs.c Dave Airlie 2005-09-05 206 if (list != NULL) { 89625eb186b9b0 drivers/char/drm/drm_bufs.c Dave Airlie 2005-09-05 207 if (list->map->size != map->size) { 836cf0465c422e drivers/char/drm/drm_bufs.c Dave Airlie 2005-07-10 208 DRM_DEBUG("Matching maps of type %d with " 836cf0465c422e drivers/char/drm/drm_bufs.c Dave Airlie 2005-07-10 209 "mismatched sizes, (%ld vs %ld)\n", b5e89ed53ed8d2 drivers/char/drm/drm_bufs.c Dave Airlie 2005-09-25 210 map->type, map->size, b5e89ed53ed8d2 drivers/char/drm/drm_bufs.c Dave Airlie 2005-09-25 211 list->map->size); 89625eb186b9b0 drivers/char/drm/drm_bufs.c Dave Airlie 2005-09-05 212 list->map->size = map->size; 836cf0465c422e drivers/char/drm/drm_bufs.c Dave Airlie 2005-07-10 213 } 836cf0465c422e drivers/char/drm/drm_bufs.c Dave Airlie 2005-07-10 214 9a298b2acd771d drivers/gpu/drm/drm_bufs.c Eric Anholt 2009-03-24 215 kfree(map); 89625eb186b9b0 drivers/char/drm/drm_bufs.c Dave Airlie 2005-09-05 216 *maplist = list; 836cf0465c422e drivers/char/drm/drm_bufs.c Dave Airlie 2005-07-10 217 return 0; 836cf0465c422e drivers/char/drm/drm_bufs.c Dave Airlie 2005-07-10 218 } 836cf0465c422e drivers/char/drm/drm_bufs.c Dave Airlie 2005-07-10 219 ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 220 if (map->type == _DRM_FRAME_BUFFER || ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 221 (map->flags & _DRM_WRITE_COMBINING)) { ff47eaf24d01b5 drivers/gpu/drm/drm_bufs.c Andy Lutomirski 2013-05-13 222 map->mtrr = ff47eaf24d01b5 drivers/gpu/drm/drm_bufs.c Andy Lutomirski 2013-05-13 223 arch_phys_wc_add(map->offset, map->size); ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 224 } 0769d39c993145 drivers/char/drm/drm_bufs.c Scott Thompson 2007-08-25 225 if (map->type == _DRM_REGISTERS) { ff47eaf24d01b5 drivers/gpu/drm/drm_bufs.c Andy Lutomirski 2013-05-13 226 if (map->flags & _DRM_WRITE_COMBINING) ff47eaf24d01b5 drivers/gpu/drm/drm_bufs.c Andy Lutomirski 2013-05-13 227 map->handle = ioremap_wc(map->offset, ff47eaf24d01b5 drivers/gpu/drm/drm_bufs.c Andy Lutomirski 2013-05-13 228 map->size); ff47eaf24d01b5 drivers/gpu/drm/drm_bufs.c Andy Lutomirski 2013-05-13 229 else 004a7727421fd2 drivers/char/drm/drm_bufs.c Christoph Hellwig 2007-01-08 230 map->handle = ioremap(map->offset, map->size); 0769d39c993145 drivers/char/drm/drm_bufs.c Scott Thompson 2007-08-25 231 if (!map->handle) { 9a298b2acd771d drivers/gpu/drm/drm_bufs.c Eric Anholt 2009-03-24 232 kfree(map); 0769d39c993145 drivers/char/drm/drm_bufs.c Scott Thompson 2007-08-25 233 return -ENOMEM; 0769d39c993145 drivers/char/drm/drm_bufs.c Scott Thompson 2007-08-25 234 } 0769d39c993145 drivers/char/drm/drm_bufs.c Scott Thompson 2007-08-25 235 } 0769d39c993145 drivers/char/drm/drm_bufs.c Scott Thompson 2007-08-25 236 ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 237 break; ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 238 case _DRM_SHM: 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 239 list = drm_find_matching_map(dev, map); 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 240 if (list != NULL) { 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 241 if (list->map->size != map->size) { 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 242 DRM_DEBUG("Matching maps of type %d with " 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 243 "mismatched sizes, (%ld vs %ld)\n", 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 244 map->type, map->size, list->map->size); 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 245 list->map->size = map->size; 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 246 } 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 247 9a298b2acd771d drivers/gpu/drm/drm_bufs.c Eric Anholt 2009-03-24 248 kfree(map); 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 249 *maplist = list; 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 250 return 0; 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 251 } f239b7b0cac068 drivers/char/drm/drm_bufs.c Thomas Hellstrom 2007-01-08 252 map->handle = vmalloc_user(map->size); ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 253 DRM_DEBUG("%lu %d %p\n", 04420c9c6a6d02 drivers/gpu/drm/drm_bufs.c Daniel Vetter 2013-07-10 254 map->size, order_base_2(map->size), map->handle); ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 255 if (!map->handle) { 9a298b2acd771d drivers/gpu/drm/drm_bufs.c Eric Anholt 2009-03-24 256 kfree(map); ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 257 return -ENOMEM; ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 258 } ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 259 map->offset = (unsigned long)map->handle; ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 260 if (map->flags & _DRM_CONTAINS_LOCK) { ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 261 /* Prevent a 2nd X Server from creating a 2nd lock */ 95c081c17f284d drivers/gpu/drm/drm_bufs.c Daniel Vetter 2016-06-21 262 if (dev->master->lock.hw_lock != NULL) { ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 263 vfree(map->handle); 9a298b2acd771d drivers/gpu/drm/drm_bufs.c Eric Anholt 2009-03-24 264 kfree(map); ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 265 return -EBUSY; ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 266 } 95c081c17f284d drivers/gpu/drm/drm_bufs.c Daniel Vetter 2016-06-21 267 dev->sigdata.lock = dev->master->lock.hw_lock = map->handle; /* Pointer to lock */ ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 268 } ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 269 break; 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 270 case _DRM_AGP: { 55910517af381e drivers/char/drm/drm_bufs.c Dave Airlie 2007-07-11 271 struct drm_agp_mem *entry; 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 272 int valid = 0; 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 273 d9906753bb997d drivers/gpu/drm/drm_bufs.c Daniel Vetter 2013-12-11 274 if (!dev->agp) { 9a298b2acd771d drivers/gpu/drm/drm_bufs.c Eric Anholt 2009-03-24 275 kfree(map); 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 276 return -EINVAL; 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 277 } ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 278 #ifdef __alpha__ ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 279 map->offset += dev->hose->mem_space->start; ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 280 #endif 47a184a80800dd drivers/char/drm/drm_bufs.c Eric Anholt 2007-11-22 281 /* In some cases (i810 driver), user space may have already 47a184a80800dd drivers/char/drm/drm_bufs.c Eric Anholt 2007-11-22 282 * added the AGP base itself, because dev->agp->base previously 47a184a80800dd drivers/char/drm/drm_bufs.c Eric Anholt 2007-11-22 283 * only got set during AGP enable. So, only add the base 47a184a80800dd drivers/char/drm/drm_bufs.c Eric Anholt 2007-11-22 284 * address if the map's offset isn't already within the 47a184a80800dd drivers/char/drm/drm_bufs.c Eric Anholt 2007-11-22 285 * aperture. 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 286 */ 47a184a80800dd drivers/char/drm/drm_bufs.c Eric Anholt 2007-11-22 287 if (map->offset < dev->agp->base || 47a184a80800dd drivers/char/drm/drm_bufs.c Eric Anholt 2007-11-22 288 map->offset > dev->agp->base + 47a184a80800dd drivers/char/drm/drm_bufs.c Eric Anholt 2007-11-22 289 dev->agp->agp_info.aper_size * 1024 * 1024 - 1) { ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 290 map->offset += dev->agp->base; 47a184a80800dd drivers/char/drm/drm_bufs.c Eric Anholt 2007-11-22 291 } ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 292 map->mtrr = dev->agp->agp_mtrr; /* for getmap */ 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 293 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 294 /* This assumes the DRM is in total control of AGP space. 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 295 * It's not always the case as AGP can be in the control 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 296 * of user space (i.e. i810 driver). So this loop will get 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 297 * skipped and we double check that dev->agp->memory is 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 298 * actually set as well as being invalid before EPERM'ing 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 299 */ bd1b331fae2813 drivers/char/drm/drm_bufs.c Dave Airlie 2007-05-26 300 list_for_each_entry(entry, &dev->agp->memory, head) { 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 301 if ((map->offset >= entry->bound) && 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 302 (map->offset + map->size <= entry->bound + entry->pages * PAGE_SIZE)) { 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 303 valid = 1; 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 304 break; 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 305 } 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 306 } bd1b331fae2813 drivers/char/drm/drm_bufs.c Dave Airlie 2007-05-26 307 if (!list_empty(&dev->agp->memory) && !valid) { 9a298b2acd771d drivers/gpu/drm/drm_bufs.c Eric Anholt 2009-03-24 308 kfree(map); 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 309 return -EPERM; ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 310 } 41c2e75e60200a drivers/gpu/drm/drm_bufs.c Benjamin Herrenschmidt 2009-02-02 311 DRM_DEBUG("AGP offset = 0x%08llx, size = 0x%08lx\n", 41c2e75e60200a drivers/gpu/drm/drm_bufs.c Benjamin Herrenschmidt 2009-02-02 312 (unsigned long long)map->offset, map->size); 54ba2f76e28128 drivers/char/drm/drm_bufs.c Dave Airlie 2007-02-10 313 a2c0a97b784f83 drivers/gpu/drm/drm_bufs.c Jesse Barnes 2008-11-05 314 break; 812c369dbf3b5a drivers/gpu/drm/drm_bufs.c Pekka Paalanen 2009-09-17 315 } ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 316 case _DRM_SCATTER_GATHER: ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 317 if (!dev->sg) { 9a298b2acd771d drivers/gpu/drm/drm_bufs.c Eric Anholt 2009-03-24 318 kfree(map); ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 319 return -EINVAL; ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 320 } d1f2b55ad2c11f drivers/char/drm/drm_bufs.c Dave Airlie 2005-08-05 321 map->offset += (unsigned long)dev->sg->virtual; ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 322 break; 2d0f9eaff8e1d0 drivers/char/drm/drm_bufs.c Dave Airlie 2005-07-10 323 case _DRM_CONSISTENT: 2d0f9eaff8e1d0 drivers/char/drm/drm_bufs.c Dave Airlie 2005-07-10 324 /* dma_addr_t is 64bit on i386 with CONFIG_HIGHMEM64G, 9c8da5ebbf6f87 drivers/char/drm/drm_bufs.c Dave Airlie 2005-07-10 325 * As we're limiting the address to 2^32-1 (or less), 2d0f9eaff8e1d0 drivers/char/drm/drm_bufs.c Dave Airlie 2005-07-10 326 * casting it down to 32 bits is no problem, but we ad6ce32a81e438 drivers/gpu/drm/drm_bufs.c Beatriz Martins de Carvalho 2021-04-18 327 * need to point to a 64bit variable first. ad6ce32a81e438 drivers/gpu/drm/drm_bufs.c Beatriz Martins de Carvalho 2021-04-18 328 */ 36b73b051c41c1 drivers/gpu/drm/drm_bufs.c Thomas Zimmermann 2021-01-18 329 map->handle = dma_alloc_coherent(dev->dev, 8e4ff9b5695728 drivers/gpu/drm/drm_bufs.c Chris Wilson 2020-02-02 330 map->size, 8e4ff9b5695728 drivers/gpu/drm/drm_bufs.c Chris Wilson 2020-02-02 331 &map->offset, 8e4ff9b5695728 drivers/gpu/drm/drm_bufs.c Chris Wilson 2020-02-02 332 GFP_KERNEL); 8e4ff9b5695728 drivers/gpu/drm/drm_bufs.c Chris Wilson 2020-02-02 333 if (!map->handle) { 9a298b2acd771d drivers/gpu/drm/drm_bufs.c Eric Anholt 2009-03-24 334 kfree(map); 2d0f9eaff8e1d0 drivers/char/drm/drm_bufs.c Dave Airlie 2005-07-10 335 return -ENOMEM; 2d0f9eaff8e1d0 drivers/char/drm/drm_bufs.c Dave Airlie 2005-07-10 336 } 2d0f9eaff8e1d0 drivers/char/drm/drm_bufs.c Dave Airlie 2005-07-10 337 break; ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 338 default: 9a298b2acd771d drivers/gpu/drm/drm_bufs.c Eric Anholt 2009-03-24 339 kfree(map); ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 340 return -EINVAL; ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 341 } ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 342 94e3370eb9fc00 drivers/gpu/drm/drm_bufs.c Davidlohr Bueso 2010-08-11 343 list = kzalloc(sizeof(*list), GFP_KERNEL); ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 344 if (!list) { 85abb3f95010b2 drivers/char/drm/drm_bufs.c Amol Lad 2006-10-25 345 if (map->type == _DRM_REGISTERS) 004a7727421fd2 drivers/char/drm/drm_bufs.c Christoph Hellwig 2007-01-08 @346 iounmap(map->handle); 9a298b2acd771d drivers/gpu/drm/drm_bufs.c Eric Anholt 2009-03-24 347 kfree(map); ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 348 return -EINVAL; ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 349 } ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 350 list->map = map; ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 351 30e2fb18819490 drivers/char/drm/drm_bufs.c Dave Airlie 2006-02-02 352 mutex_lock(&dev->struct_mutex); bd1b331fae2813 drivers/char/drm/drm_bufs.c Dave Airlie 2007-05-26 353 list_add(&list->head, &dev->maplist); 8d153f7107ff2c drivers/char/drm/drm_bufs.c Thomas Hellstrom 2006-08-07 354 d1f2b55ad2c11f drivers/char/drm/drm_bufs.c Dave Airlie 2005-08-05 355 /* Assign a 32-bit handle */ 30e2fb18819490 drivers/char/drm/drm_bufs.c Dave Airlie 2006-02-02 356 /* We do it here so that dev->struct_mutex protects the increment */ 8d153f7107ff2c drivers/char/drm/drm_bufs.c Thomas Hellstrom 2006-08-07 357 user_token = (map->type == _DRM_SHM) ? (unsigned long)map->handle : 8d153f7107ff2c drivers/char/drm/drm_bufs.c Thomas Hellstrom 2006-08-07 358 map->offset; f1a2a9b6189f9f drivers/gpu/drm/drm_bufs.c David Miller 2009-02-18 359 ret = drm_map_handle(dev, &list->hash, user_token, 0, f1a2a9b6189f9f drivers/gpu/drm/drm_bufs.c David Miller 2009-02-18 360 (map->type == _DRM_SHM)); 8d153f7107ff2c drivers/char/drm/drm_bufs.c Thomas Hellstrom 2006-08-07 361 if (ret) { 85abb3f95010b2 drivers/char/drm/drm_bufs.c Amol Lad 2006-10-25 362 if (map->type == _DRM_REGISTERS) 004a7727421fd2 drivers/char/drm/drm_bufs.c Christoph Hellwig 2007-01-08 363 iounmap(map->handle); 9a298b2acd771d drivers/gpu/drm/drm_bufs.c Eric Anholt 2009-03-24 364 kfree(map); 9a298b2acd771d drivers/gpu/drm/drm_bufs.c Eric Anholt 2009-03-24 365 kfree(list); 8d153f7107ff2c drivers/char/drm/drm_bufs.c Thomas Hellstrom 2006-08-07 366 mutex_unlock(&dev->struct_mutex); 8d153f7107ff2c drivers/char/drm/drm_bufs.c Thomas Hellstrom 2006-08-07 367 return ret; 8d153f7107ff2c drivers/char/drm/drm_bufs.c Thomas Hellstrom 2006-08-07 368 } 8d153f7107ff2c drivers/char/drm/drm_bufs.c Thomas Hellstrom 2006-08-07 369 1545085a28f226 drivers/char/drm/drm_bufs.c Thomas Hellstrom 2007-02-08 370 list->user_token = list->hash.key << PAGE_SHIFT; 30e2fb18819490 drivers/char/drm/drm_bufs.c Dave Airlie 2006-02-02 371 mutex_unlock(&dev->struct_mutex); ^1da177e4c3f41 drivers/char/drm/drm_bufs.c Linus Torvalds 2005-04-16 372 2ff2e8a3e1898e drivers/gpu/drm/drm_bufs.c Ben Skeggs 2009-05-26 373 if (!(map->flags & _DRM_DRIVER)) 95c081c17f284d drivers/gpu/drm/drm_bufs.c Daniel Vetter 2016-06-21 374 list->master = dev->master; 89625eb186b9b0 drivers/char/drm/drm_bufs.c Dave Airlie 2005-09-05 375 *maplist = list; 7ab984012a879a drivers/char/drm/drm_bufs.c Dave Airlie 2005-07-10 376 return 0; 7ab984012a879a drivers/char/drm/drm_bufs.c Dave Airlie 2005-07-10 377 } 89625eb186b9b0 drivers/char/drm/drm_bufs.c Dave Airlie 2005-09-05 378 :::::: The code at line 346 was first introduced by commit :::::: 004a7727421fd202bbdfcc0231a3359085199a52 drm: remove drm_ioremap and drm_ioremapfree :::::: TO: Christoph Hellwig <hch@xxxxxx> :::::: CC: Dave Airlie <airlied@xxxxxxxx> -- 0-DAY CI Kernel Test Service https://01.org/lkp
