From: kernel test robot <lkp@intel.com>
To: Ben Skeggs <bskeggs@nvidia.com>
Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org,
Dave Airlie <airlied@redhat.com>, Timur Tabi <ttabi@nvidia.com>
Subject: drivers/gpu/drm/nouveau/gv100_fence.c:25:9: sparse: sparse: cast removes address space '__iomem' of expression
Date: Fri, 12 Dec 2025 20:11:48 +0800 [thread overview]
Message-ID: <202512122006.PfLMnLim-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: d358e5254674b70f34c847715ca509e46eb81e6f
commit: b1ca384772b657df433acf0c36f0771d5ebe1138 drm/nouveau/gv100-: switch to volta semaphore methods
date: 7 months ago
config: alpha-randconfig-r134-20251212 (https://download.01.org/0day-ci/archive/20251212/202512122006.PfLMnLim-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 10.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251212/202512122006.PfLMnLim-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202512122006.PfLMnLim-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
drivers/gpu/drm/nouveau/gv100_fence.c: note: in included file (through drivers/gpu/drm/nouveau/nouveau_drv.h):
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:9:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:10:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:11:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:12:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:13:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:14:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:17:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:18:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:20:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:21:1: sparse: sparse: directive in macro's argument list
>> drivers/gpu/drm/nouveau/gv100_fence.c:25:9: sparse: sparse: cast removes address space '__iomem' of expression
>> drivers/gpu/drm/nouveau/gv100_fence.c:25:9: sparse: sparse: cast removes address space '__iomem' of expression
>> drivers/gpu/drm/nouveau/gv100_fence.c:25:9: sparse: sparse: cast removes address space '__iomem' of expression
>> drivers/gpu/drm/nouveau/gv100_fence.c:25:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/gv100_fence.c:29:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/gv100_fence.c:29:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/gv100_fence.c:35:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/gv100_fence.c:35:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/gv100_fence.c:51:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/gv100_fence.c:51:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/gv100_fence.c:51:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/gv100_fence.c:51:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/gv100_fence.c:55:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/gv100_fence.c:55:9: sparse: sparse: cast removes address space '__iomem' of expression
vim +/__iomem +25 drivers/gpu/drm/nouveau/gv100_fence.c
14
15 static int
16 gv100_fence_emit32(struct nouveau_channel *chan, u64 virtual, u32 sequence)
17 {
18 struct nvif_push *push = &chan->chan.push;
19 int ret;
20
21 ret = PUSH_WAIT(push, 8);
22 if (ret)
23 return ret;
24
> 25 PUSH_MTHD(push, NVC36F, SEM_ADDR_LO, lower_32_bits(virtual),
26 SEM_ADDR_HI, upper_32_bits(virtual),
27 SEM_PAYLOAD_LO, sequence);
28
29 PUSH_MTHD(push, NVC36F, SEM_EXECUTE,
30 NVDEF(NVC36F, SEM_EXECUTE, OPERATION, RELEASE) |
31 NVDEF(NVC36F, SEM_EXECUTE, RELEASE_WFI, EN) |
32 NVDEF(NVC36F, SEM_EXECUTE, PAYLOAD_SIZE, 32BIT) |
33 NVDEF(NVC36F, SEM_EXECUTE, RELEASE_TIMESTAMP, DIS));
34
35 PUSH_MTHD(push, NVC36F, NON_STALL_INTERRUPT, 0);
36
37 PUSH_KICK(push);
38 return 0;
39 }
40
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next reply other threads:[~2025-12-12 12:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-12 12:11 kernel test robot [this message]
-- strict thread matches above, loose matches on Subject: below --
2026-01-13 19:03 drivers/gpu/drm/nouveau/gv100_fence.c:25:9: sparse: sparse: cast removes address space '__iomem' of expression kernel test robot
2026-02-17 2:53 kernel test robot
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