tree: git://people.freedesktop.org/~agd5f/linux.git raven
head: c6ee08eda872bc7ac60ed0ba82a5d85e696a894c
commit: a1146cea5877c42e10858082cf9018fd63165a92 [340/1060] drm/amdgpu: handle CPU access for split VRAM buffers (v2)
config: parisc-allyesconfig (attached as .config)
compiler: hppa-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout a1146cea5877c42e10858082cf9018fd63165a92
# save the attached .config to linux build tree
make.cross ARCH=parisc
All error/warnings (new ones prefixed by >>):
In file included from ./arch/parisc/include/generated/asm/div64.h:1:0,
from include/linux/kernel.h:149,
from include/linux/list.h:8,
from include/drm/drm_hashtab.h:38,
from include/drm/ttm/ttm_bo_api.h:34,
from drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:32:
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c: In function 'amdgpu_ttm_io_mem_pfn':
include/asm-generic/div64.h:207:28: warning: comparison of distinct pointer types lacks a cast
(void)(((typeof((n)) *)0) == ((uint64_t *)0)); \
^
>> drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:556:16: note: in expansion of macro 'do_div'
page_offset = do_div(offset, size);
^~~~~~
In file included from include/uapi/linux/stddef.h:1:0,
from include/linux/stddef.h:4,
from include/uapi/linux/posix_types.h:4,
from include/uapi/linux/types.h:13,
from include/linux/types.h:5,
from include/linux/list.h:4,
from include/drm/drm_hashtab.h:38,
from include/drm/ttm/ttm_bo_api.h:34,
from drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:32:
include/asm-generic/div64.h:220:25: warning: right shift count >= width of type [-Wshift-count-overflow]
} else if (likely(((n) >> 32) == 0)) { \
^
include/linux/compiler.h:178:40: note: in definition of macro 'likely'
# define likely(x) __builtin_expect(!!(x), 1)
^
>> drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:556:16: note: in expansion of macro 'do_div'
page_offset = do_div(offset, size);
^~~~~~
In file included from ./arch/parisc/include/generated/asm/div64.h:1:0,
from include/linux/kernel.h:149,
from include/linux/list.h:8,
from include/drm/drm_hashtab.h:38,
from include/drm/ttm/ttm_bo_api.h:34,
from drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:32:
>> include/asm-generic/div64.h:224:22: error: passing argument 1 of '__div64_32' from incompatible pointer type [-Werror=incompatible-pointer-types]
__rem = __div64_32(&(n), __base); \
^
>> drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:556:16: note: in expansion of macro 'do_div'
page_offset = do_div(offset, size);
^~~~~~
include/asm-generic/div64.h:198:17: note: expected 'uint64_t * {aka long long unsigned int *}' but argument is of type 'long unsigned int *'
extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor);
^~~~~~~~~~
cc1: some warnings being treated as errors
--
In file included from ./arch/parisc/include/generated/asm/div64.h:1:0,
from include/linux/kernel.h:149,
from include/linux/list.h:8,
from include/drm/drm_hashtab.h:38,
from include/drm/ttm/ttm_bo_api.h:34,
from drivers/gpu//drm/amd/amdgpu/amdgpu_ttm.c:32:
drivers/gpu//drm/amd/amdgpu/amdgpu_ttm.c: In function 'amdgpu_ttm_io_mem_pfn':
include/asm-generic/div64.h:207:28: warning: comparison of distinct pointer types lacks a cast
(void)(((typeof((n)) *)0) == ((uint64_t *)0)); \
^
drivers/gpu//drm/amd/amdgpu/amdgpu_ttm.c:556:16: note: in expansion of macro 'do_div'
page_offset = do_div(offset, size);
^~~~~~
In file included from include/uapi/linux/stddef.h:1:0,
from include/linux/stddef.h:4,
from include/uapi/linux/posix_types.h:4,
from include/uapi/linux/types.h:13,
from include/linux/types.h:5,
from include/linux/list.h:4,
from include/drm/drm_hashtab.h:38,
from include/drm/ttm/ttm_bo_api.h:34,
from drivers/gpu//drm/amd/amdgpu/amdgpu_ttm.c:32:
include/asm-generic/div64.h:220:25: warning: right shift count >= width of type [-Wshift-count-overflow]
} else if (likely(((n) >> 32) == 0)) { \
^
include/linux/compiler.h:178:40: note: in definition of macro 'likely'
# define likely(x) __builtin_expect(!!(x), 1)
^
drivers/gpu//drm/amd/amdgpu/amdgpu_ttm.c:556:16: note: in expansion of macro 'do_div'
page_offset = do_div(offset, size);
^~~~~~
In file included from ./arch/parisc/include/generated/asm/div64.h:1:0,
from include/linux/kernel.h:149,
from include/linux/list.h:8,
from include/drm/drm_hashtab.h:38,
from include/drm/ttm/ttm_bo_api.h:34,
from drivers/gpu//drm/amd/amdgpu/amdgpu_ttm.c:32:
>> include/asm-generic/div64.h:224:22: error: passing argument 1 of '__div64_32' from incompatible pointer type [-Werror=incompatible-pointer-types]
__rem = __div64_32(&(n), __base); \
^
drivers/gpu//drm/amd/amdgpu/amdgpu_ttm.c:556:16: note: in expansion of macro 'do_div'
page_offset = do_div(offset, size);
^~~~~~
include/asm-generic/div64.h:198:17: note: expected 'uint64_t * {aka long long unsigned int *}' but argument is of type 'long unsigned int *'
extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor);
^~~~~~~~~~
cc1: some warnings being treated as errors
vim +/do_div +556 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
540 return -EINVAL;
541 }
542 return 0;
543 }
544
545 static void amdgpu_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
546 {
547 }
548
549 static unsigned long amdgpu_ttm_io_mem_pfn(struct ttm_buffer_object *bo,
550 unsigned long page_offset)
551 {
552 struct drm_mm_node *mm = bo->mem.mm_node;
553 uint64_t size = mm->size;
554 unsigned long offset = page_offset;
555
> 556 page_offset = do_div(offset, size);
557 return (bo->mem.bus.base >> PAGE_SHIFT) + mm->start + page_offset;
558 }
559
560 /*
561 * TTM backend functions.
562 */
563 struct amdgpu_ttm_gup_task_list {
564 struct list_head list;
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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.config.gz
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