drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: incorrect type in initializer (different address spaces)

From: kernel test robot
Date: Wed Aug 05 2020 - 16:00:20 EST

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 4da9f3302615f4191814f826054846bf843e24fa
commit: 670d0a4b10704667765f7d18f7592993d02783aa sparse: use identifiers to define address spaces
date: 7 weeks ago
config: arc-randconfig-s031-20200805 (attached as .config)
compiler: arc-elf-gcc (GCC) 9.3.0
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: v0.6.2-117-g8c7aee71-dirty
git checkout 670d0a4b10704667765f7d18f7592993d02783aa
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=arc

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

sparse warnings: (new ones prefixed by >>)

drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:819:42: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:1094:5: sparse: sparse: symbol 'amdgpu_ttm_gart_bind' was not declared. Should it be static?
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
>> drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __user *__p @@ got unsigned int [usertype] * @@
>> drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: expected void const [noderef] __user *__p
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: got unsigned int [usertype] *
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:2353:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c: note: in included file (through include/linux/uaccess.h, include/linux/sched/task.h, include/linux/sched/signal.h, ...):
arch/arc/include/asm/uaccess.h:619:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected unsigned char *d_char @@ got void [noderef] __user *to @@
arch/arc/include/asm/uaccess.h:619:33: sparse: expected unsigned char *d_char
arch/arc/include/asm/uaccess.h:619:33: sparse: got void [noderef] __user *to
--
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:384:29: sparse: sparse: cast removes address space '__user' of expression
>> drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:384:29: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void [noderef] __user *__p @@ got unsigned int [usertype] * @@
>> drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:384:29: sparse: expected void [noderef] __user *__p
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:384:29: sparse: got unsigned int [usertype] *
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:384:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:384:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:384:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:384:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:384:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:384:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:384:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:384:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:384:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:384:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:399:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:399:21: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void [noderef] __user *__p @@ got unsigned int [usertype] * @@
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:399:21: sparse: expected void [noderef] __user *__p
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:399:21: sparse: got unsigned int [usertype] *
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:399:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:399:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:399:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:399:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:399:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:399:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:399:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:399:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:399:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c:399:21: sparse: sparse: cast removes address space '__user' of expression
--
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:138:17: sparse: sparse: incorrect type in initializer (different base types) @@ expected restricted __poll_t ( *poll )( ... ) @@ got unsigned int ( * )( ... ) @@
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:138:17: sparse: expected restricted __poll_t ( *poll )( ... )
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:138:17: sparse: got unsigned int ( * )( ... )
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:257:29: sparse: sparse: cast removes address space '__user' of expression
>> drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:257:29: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void [noderef] __user *__p @@ got unsigned int [usertype] * @@
>> drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:257:29: sparse: expected void [noderef] __user *__p
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:257:29: sparse: got unsigned int [usertype] *
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:257:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:257:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:257:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:257:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:257:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:257:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:257:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:257:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:257:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:257:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
>> drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __user *__p @@ got unsigned int [usertype] * @@
>> drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: expected void const [noderef] __user *__p
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: got unsigned int [usertype] *
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:259:29: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:346:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:346:21: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void [noderef] __user *__p @@ got unsigned int [usertype] * @@
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:346:21: sparse: expected void [noderef] __user *__p
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:346:21: sparse: got unsigned int [usertype] *
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:346:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:346:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:346:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:346:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:346:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:346:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:346:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:346:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:346:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:346:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __user *__p @@ got unsigned int [usertype] * @@
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: expected void const [noderef] __user *__p
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: got unsigned int [usertype] *
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:400:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:457:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:457:21: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void [noderef] __user *__p @@ got unsigned int [usertype] * @@
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:457:21: sparse: expected void [noderef] __user *__p
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:457:21: sparse: got unsigned int [usertype] *
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:457:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:457:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:457:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:457:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:457:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:457:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:457:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:457:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:457:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:457:21: sparse: sparse: cast removes address space '__user' of expression
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:511:21: sparse: sparse: too many warnings
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:1256:25: sparse: sparse: incompatible types in comparison expression (different address spaces):
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:1256:25: sparse: struct dma_fence [noderef] __rcu *
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:1256:25: sparse: struct dma_fence *
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:1257:17: sparse: sparse: incompatible types in comparison expression (different address spaces):
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:1257:17: sparse: struct dma_fence [noderef] __rcu *
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:1257:17: sparse: struct dma_fence *
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:1313:17: sparse: sparse: incompatible types in comparison expression (different address spaces):
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c:1313:17: sparse: struct dma_fence [noderef] __rcu *

vim +2353 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c

d38ceaf99ed015f Alex Deucher 2015-04-20 2327
50da51744f005f4 Tom St Denis 2018-05-09 2328 /**
50da51744f005f4 Tom St Denis 2018-05-09 2329 * amdgpu_ttm_vram_write - Linear write access to VRAM
50da51744f005f4 Tom St Denis 2018-05-09 2330 *
50da51744f005f4 Tom St Denis 2018-05-09 2331 * Accesses VRAM via MMIO for debugging purposes.
50da51744f005f4 Tom St Denis 2018-05-09 2332 */
08cab989f77582c Tom St Denis 2017-08-29 2333 static ssize_t amdgpu_ttm_vram_write(struct file *f, const char __user *buf,
08cab989f77582c Tom St Denis 2017-08-29 2334 size_t size, loff_t *pos)
08cab989f77582c Tom St Denis 2017-08-29 2335 {
08cab989f77582c Tom St Denis 2017-08-29 2336 struct amdgpu_device *adev = file_inode(f)->i_private;
08cab989f77582c Tom St Denis 2017-08-29 2337 ssize_t result = 0;
08cab989f77582c Tom St Denis 2017-08-29 2338 int r;
08cab989f77582c Tom St Denis 2017-08-29 2339
08cab989f77582c Tom St Denis 2017-08-29 2340 if (size & 0x3 || *pos & 0x3)
08cab989f77582c Tom St Denis 2017-08-29 2341 return -EINVAL;
08cab989f77582c Tom St Denis 2017-08-29 2342
770d13b19fdf365 Christian König 2018-01-12 2343 if (*pos >= adev->gmc.mc_vram_size)
08cab989f77582c Tom St Denis 2017-08-29 2344 return -ENXIO;
08cab989f77582c Tom St Denis 2017-08-29 2345
08cab989f77582c Tom St Denis 2017-08-29 2346 while (size) {
08cab989f77582c Tom St Denis 2017-08-29 2347 unsigned long flags;
08cab989f77582c Tom St Denis 2017-08-29 2348 uint32_t value;
08cab989f77582c Tom St Denis 2017-08-29 2349
770d13b19fdf365 Christian König 2018-01-12 2350 if (*pos >= adev->gmc.mc_vram_size)
08cab989f77582c Tom St Denis 2017-08-29 2351 return result;
08cab989f77582c Tom St Denis 2017-08-29 2352
08cab989f77582c Tom St Denis 2017-08-29 @2353 r = get_user(value, (uint32_t *)buf);
08cab989f77582c Tom St Denis 2017-08-29 2354 if (r)
08cab989f77582c Tom St Denis 2017-08-29 2355 return r;
08cab989f77582c Tom St Denis 2017-08-29 2356
08cab989f77582c Tom St Denis 2017-08-29 2357 spin_lock_irqsave(&adev->mmio_idx_lock, flags);
c30572814df55bc Tom St Denis 2017-09-13 2358 WREG32_NO_KIQ(mmMM_INDEX, ((uint32_t)*pos) | 0x80000000);
c30572814df55bc Tom St Denis 2017-09-13 2359 WREG32_NO_KIQ(mmMM_INDEX_HI, *pos >> 31);
c30572814df55bc Tom St Denis 2017-09-13 2360 WREG32_NO_KIQ(mmMM_DATA, value);
08cab989f77582c Tom St Denis 2017-08-29 2361 spin_unlock_irqrestore(&adev->mmio_idx_lock, flags);
08cab989f77582c Tom St Denis 2017-08-29 2362
08cab989f77582c Tom St Denis 2017-08-29 2363 result += 4;
08cab989f77582c Tom St Denis 2017-08-29 2364 buf += 4;
08cab989f77582c Tom St Denis 2017-08-29 2365 *pos += 4;
08cab989f77582c Tom St Denis 2017-08-29 2366 size -= 4;
08cab989f77582c Tom St Denis 2017-08-29 2367 }
08cab989f77582c Tom St Denis 2017-08-29 2368
08cab989f77582c Tom St Denis 2017-08-29 2369 return result;
08cab989f77582c Tom St Denis 2017-08-29 2370 }
08cab989f77582c Tom St Denis 2017-08-29 2371

:::::: The code at line 2353 was first introduced by commit
:::::: 08cab989f77582cb19df12d4a75a91b68b0017f6 drm/amd/amdgpu: Add write() method to VRAM debugfs entry (v2)

:::::: TO: Tom St Denis <tom.stdenis@xxxxxxx>
:::::: CC: Alex Deucher <alexander.deucher@xxxxxxx>

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