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Message-ID: <202312090544.2hSoAyHo-lkp@intel.com>
Date:   Sat, 9 Dec 2023 05:56:41 +0800
From:   kernel test robot <lkp@...el.com>
To:     Christophe Leroy <christophe.leroy@...roup.eu>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Michael Ellerman <mpe@...erman.id.au>
Subject: drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c:104:58: sparse:
 sparse: incorrect type in argument 2 (different address spaces)

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   081ed90a8c662455a79843add14857b356de37a4
commit: 894fa235eb4ca0bfa692dbe4932c2f940cdc8c1e powerpc: inline iomap accessors
date:   3 years ago
config: powerpc-randconfig-r113-20231106 (https://download.01.org/0day-ci/archive/20231209/202312090544.2hSoAyHo-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20231209/202312090544.2hSoAyHo-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312090544.2hSoAyHo-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c:104:58: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void [noderef] __iomem *addr @@     got void * @@
   drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c:104:58: sparse:     expected void [noderef] __iomem *addr
   drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c:104:58: sparse:     got void *
>> drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c:110:58: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const [noderef] __iomem *addr @@     got void * @@
   drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c:110:58: sparse:     expected void const [noderef] __iomem *addr
   drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c:110:58: sparse:     got void *
   drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c:157:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void volatile [noderef] __iomem *addr @@     got void *[assigned] emap @@
   drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c:157:25: sparse:     expected void volatile [noderef] __iomem *addr
   drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c:157:25: sparse:     got void *[assigned] emap
   drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c:174:19: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void *map @@     got void [noderef] __iomem * @@
   drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c:174:19: sparse:     expected void *map
   drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c:174:19: sparse:     got void [noderef] __iomem *
   drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c:225:28: sparse: sparse: incorrect type in return expression (different address spaces) @@     expected void [noderef] __iomem * @@     got void *map @@
   drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c:225:28: sparse:     expected void [noderef] __iomem *
   drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c:225:28: sparse:     got void *map
   drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c:233:28: sparse: sparse: incorrect type in return expression (different address spaces) @@     expected void [noderef] __iomem * @@     got void *map @@
   drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c:233:28: sparse:     expected void [noderef] __iomem *
   drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c:233:28: sparse:     got void *map
   drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c:240:21: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void [noderef] __iomem *map @@     got void *map @@
   drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c:240:21: sparse:     expected void [noderef] __iomem *map
   drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c:240:21: sparse:     got void *map
   drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c:327:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void volatile [noderef] __iomem *addr @@     got void *[assigned] map @@
   drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c:327:25: sparse:     expected void volatile [noderef] __iomem *addr
   drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c:327:25: sparse:     got void *[assigned] map

vim +104 drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv50.c

07bbc1c5f49b64 Ben Skeggs 2017-11-01  100  
be55287aa5ba68 Ben Skeggs 2017-11-01  101  static void
be55287aa5ba68 Ben Skeggs 2017-11-01  102  nv50_instobj_wr32(struct nvkm_memory *memory, u64 offset, u32 data)
be55287aa5ba68 Ben Skeggs 2017-11-01  103  {
be55287aa5ba68 Ben Skeggs 2017-11-01 @104  	iowrite32_native(data, nv50_instobj(memory)->map + offset);
be55287aa5ba68 Ben Skeggs 2017-11-01  105  }
be55287aa5ba68 Ben Skeggs 2017-11-01  106  
be55287aa5ba68 Ben Skeggs 2017-11-01  107  static u32
be55287aa5ba68 Ben Skeggs 2017-11-01  108  nv50_instobj_rd32(struct nvkm_memory *memory, u64 offset)
be55287aa5ba68 Ben Skeggs 2017-11-01  109  {
be55287aa5ba68 Ben Skeggs 2017-11-01 @110  	return ioread32_native(nv50_instobj(memory)->map + offset);
be55287aa5ba68 Ben Skeggs 2017-11-01  111  }
be55287aa5ba68 Ben Skeggs 2017-11-01  112  

:::::: The code at line 104 was first introduced by commit
:::::: be55287aa5ba6895e9d4d3ed2f08a1be7a065957 drm/nouveau/imem/nv50: embed nvkm_instobj directly into nv04_instobj

:::::: TO: Ben Skeggs <bskeggs@...hat.com>
:::::: CC: Ben Skeggs <bskeggs@...hat.com>

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

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