[PATCH] drm/ttm: PLEASE ignore. Just test Intel build robot.
kernel test robot
lkp at intel.com
Wed Mar 3 04:59:43 UTC 2021
Hi Oak,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on drm-intel/for-linux-next]
[also build test ERROR on drm-tip/drm-tip linus/master v5.12-rc1 next-20210303]
[cannot apply to tegra-drm/drm/tegra/for-next drm-exynos/exynos-drm-next drm/drm-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Oak-Zeng/drm-ttm-PLEASE-ignore-Just-test-Intel-build-robot/20210303-091234
base: git://anongit.freedesktop.org/drm-intel for-linux-next
config: s390-randconfig-r003-20210303 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project a7cad6680b4087eff8994f1f99ac40c661a6621f)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install s390 cross compiling tool for clang build
# apt-get install binutils-s390x-linux-gnu
# https://github.com/0day-ci/linux/commit/00ccdcad822515e31482876e46504b6038e904aa
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Oak-Zeng/drm-ttm-PLEASE-ignore-Just-test-Intel-build-robot/20210303-091234
git checkout 00ccdcad822515e31482876e46504b6038e904aa
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=s390
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp at intel.com>
All error/warnings (new ones prefixed by >>):
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
___constant_swab32(x) : \
^
include/uapi/linux/swab.h:19:12: note: expanded from macro '___constant_swab32'
(((__u32)(x) & (__u32)0x000000ffUL) << 24) | \
^
In file included from drivers/gpu/drm/ttm/ttm_bo_util.c:35:
In file included from include/linux/dma-buf-map.h:9:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:80:
include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
___constant_swab32(x) : \
^
include/uapi/linux/swab.h:20:12: note: expanded from macro '___constant_swab32'
(((__u32)(x) & (__u32)0x0000ff00UL) << 8) | \
^
In file included from drivers/gpu/drm/ttm/ttm_bo_util.c:35:
In file included from include/linux/dma-buf-map.h:9:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:80:
include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
___constant_swab32(x) : \
^
include/uapi/linux/swab.h:21:12: note: expanded from macro '___constant_swab32'
(((__u32)(x) & (__u32)0x00ff0000UL) >> 8) | \
^
In file included from drivers/gpu/drm/ttm/ttm_bo_util.c:35:
In file included from include/linux/dma-buf-map.h:9:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:80:
include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:119:21: note: expanded from macro '__swab32'
___constant_swab32(x) : \
^
include/uapi/linux/swab.h:22:12: note: expanded from macro '___constant_swab32'
(((__u32)(x) & (__u32)0xff000000UL) >> 24)))
^
In file included from drivers/gpu/drm/ttm/ttm_bo_util.c:35:
In file included from include/linux/dma-buf-map.h:9:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:80:
include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:34:59: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:120:12: note: expanded from macro '__swab32'
__fswab32(x))
^
In file included from drivers/gpu/drm/ttm/ttm_bo_util.c:35:
In file included from include/linux/dma-buf-map.h:9:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:80:
include/asm-generic/io.h:501:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writeb(value, PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:511:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:521:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:609:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:617:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:625:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:634:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:643:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:652:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
>> drivers/gpu/drm/ttm/ttm_bo_util.c:500:18: error: implicit declaration of function 'ioremap_cache' [-Werror,-Wimplicit-function-declaration]
vaddr_iomem = ioremap_cache(mem->bus.offset,
^
>> drivers/gpu/drm/ttm/ttm_bo_util.c:500:16: warning: incompatible integer to pointer conversion assigning to 'void *' from 'int' [-Wint-conversion]
vaddr_iomem = ioremap_cache(mem->bus.offset,
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
21 warnings and 1 error generated.
vim +/ioremap_cache +500 drivers/gpu/drm/ttm/ttm_bo_util.c
481
482 int ttm_bo_vmap(struct ttm_buffer_object *bo, struct dma_buf_map *map)
483 {
484 struct ttm_resource *mem = &bo->mem;
485 int ret;
486
487 ret = ttm_mem_io_reserve(bo->bdev, mem);
488 if (ret)
489 return ret;
490
491 if (mem->bus.is_iomem) {
492 void __iomem *vaddr_iomem;
493
494 if (mem->bus.addr)
495 vaddr_iomem = (void __iomem *)mem->bus.addr;
496 else if (mem->bus.caching == ttm_write_combined)
497 vaddr_iomem = ioremap_wc(mem->bus.offset,
498 bo->base.size);
499 else if (mem->bus.caching == ttm_cached)
> 500 vaddr_iomem = ioremap_cache(mem->bus.offset,
501 bo->base.size);
502 else
503 vaddr_iomem = ioremap(mem->bus.offset, bo->base.size);
504
505 if (!vaddr_iomem)
506 return -ENOMEM;
507
508 dma_buf_map_set_vaddr_iomem(map, vaddr_iomem);
509
510 } else {
511 struct ttm_operation_ctx ctx = {
512 .interruptible = false,
513 .no_wait_gpu = false
514 };
515 struct ttm_tt *ttm = bo->ttm;
516 pgprot_t prot;
517 void *vaddr;
518
519 ret = ttm_tt_populate(bo->bdev, ttm, &ctx);
520 if (ret)
521 return ret;
522
523 /*
524 * We need to use vmap to get the desired page protection
525 * or to make the buffer object look contiguous.
526 */
527 prot = ttm_io_prot(bo, mem, PAGE_KERNEL);
528 vaddr = vmap(ttm->pages, ttm->num_pages, 0, prot);
529 if (!vaddr)
530 return -ENOMEM;
531
532 dma_buf_map_set_vaddr(map, vaddr);
533 }
534
535 return 0;
536 }
537 EXPORT_SYMBOL(ttm_bo_vmap);
538
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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