tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 31bd35b66249699343d2416658f57e97314a433a commit: 0c18184de990e63f708b090bcb9fc6c0fbc427cd [3256/8744] platform/x86: apple-gmux: support MMIO gmux on T2 Macs config: x86_64-randconfig-s023-20230403 (https://download.01.org/0day-ci/archive/20230404/202304040401.IMxt7Ubi-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=0c18184de990e63f708b090bcb9fc6c0fbc427cd git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 0c18184de990e63f708b090bcb9fc6c0fbc427cd # save the config file mkdir build_dir && cp config build_dir/.config make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 olddefconfig make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/platform/x86/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202304040401.IMxt7Ubi-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> drivers/platform/x86/apple-gmux.c:224:48: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem * @@ got unsigned char [usertype] * @@ drivers/platform/x86/apple-gmux.c:224:48: sparse: expected void const [noderef] __iomem * drivers/platform/x86/apple-gmux.c:224:48: sparse: got unsigned char [usertype] * drivers/platform/x86/apple-gmux.c:227:53: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem * @@ got unsigned char [usertype] * @@ drivers/platform/x86/apple-gmux.c:227:53: sparse: expected void const [noderef] __iomem * drivers/platform/x86/apple-gmux.c:227:53: sparse: got unsigned char [usertype] * >> drivers/platform/x86/apple-gmux.c:241:55: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got unsigned char [usertype] * @@ drivers/platform/x86/apple-gmux.c:241:55: sparse: expected void [noderef] __iomem * drivers/platform/x86/apple-gmux.c:241:55: sparse: got unsigned char [usertype] * drivers/platform/x86/apple-gmux.c:243:39: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got unsigned char [usertype] * @@ drivers/platform/x86/apple-gmux.c:243:39: sparse: expected void [noderef] __iomem * drivers/platform/x86/apple-gmux.c:243:39: sparse: got unsigned char [usertype] * >> drivers/platform/x86/apple-gmux.c:245:32: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem * @@ got unsigned char [usertype] *[noderef] iomem_base @@ drivers/platform/x86/apple-gmux.c:245:32: sparse: expected void const [noderef] __iomem * drivers/platform/x86/apple-gmux.c:245:32: sparse: got unsigned char [usertype] *[noderef] iomem_base >> drivers/platform/x86/apple-gmux.c:256:32: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got unsigned char [usertype] *[noderef] iomem_base @@ drivers/platform/x86/apple-gmux.c:256:32: sparse: expected void [noderef] __iomem * drivers/platform/x86/apple-gmux.c:256:32: sparse: got unsigned char [usertype] *[noderef] iomem_base drivers/platform/x86/apple-gmux.c:258:53: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got unsigned char [usertype] * @@ drivers/platform/x86/apple-gmux.c:258:53: sparse: expected void [noderef] __iomem * drivers/platform/x86/apple-gmux.c:258:53: sparse: got unsigned char [usertype] * drivers/platform/x86/apple-gmux.c:260:39: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got unsigned char [usertype] * @@ drivers/platform/x86/apple-gmux.c:260:39: sparse: expected void [noderef] __iomem * drivers/platform/x86/apple-gmux.c:260:39: sparse: got unsigned char [usertype] * drivers/platform/x86/apple-gmux.c:272:55: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got unsigned char [usertype] * @@ drivers/platform/x86/apple-gmux.c:272:55: sparse: expected void [noderef] __iomem * drivers/platform/x86/apple-gmux.c:272:55: sparse: got unsigned char [usertype] * drivers/platform/x86/apple-gmux.c:274:39: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got unsigned char [usertype] * @@ drivers/platform/x86/apple-gmux.c:274:39: sparse: expected void [noderef] __iomem * drivers/platform/x86/apple-gmux.c:274:39: sparse: got unsigned char [usertype] * drivers/platform/x86/apple-gmux.c:276:15: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem * @@ got unsigned char [usertype] *[noderef] iomem_base @@ drivers/platform/x86/apple-gmux.c:276:15: sparse: expected void const [noderef] __iomem * drivers/platform/x86/apple-gmux.c:276:15: sparse: got unsigned char [usertype] *[noderef] iomem_base >> drivers/platform/x86/apple-gmux.c:276:15: sparse: sparse: cast to restricted __be32 >> drivers/platform/x86/apple-gmux.c:286:19: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] @@ got restricted __be32 [usertype] @@ drivers/platform/x86/apple-gmux.c:286:19: sparse: expected unsigned int [usertype] drivers/platform/x86/apple-gmux.c:286:19: sparse: got restricted __be32 [usertype] drivers/platform/x86/apple-gmux.c:286:46: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got unsigned char [usertype] *[noderef] iomem_base @@ drivers/platform/x86/apple-gmux.c:286:46: sparse: expected void [noderef] __iomem * drivers/platform/x86/apple-gmux.c:286:46: sparse: got unsigned char [usertype] *[noderef] iomem_base drivers/platform/x86/apple-gmux.c:287:53: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got unsigned char [usertype] * @@ drivers/platform/x86/apple-gmux.c:287:53: sparse: expected void [noderef] __iomem * drivers/platform/x86/apple-gmux.c:287:53: sparse: got unsigned char [usertype] * drivers/platform/x86/apple-gmux.c:289:39: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got unsigned char [usertype] * @@ drivers/platform/x86/apple-gmux.c:289:39: sparse: expected void [noderef] __iomem * drivers/platform/x86/apple-gmux.c:289:39: sparse: got unsigned char [usertype] * >> drivers/platform/x86/apple-gmux.c:739:39: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected unsigned char [usertype] *[noderef] iomem_base @@ got void [noderef] __iomem * @@ drivers/platform/x86/apple-gmux.c:739:39: sparse: expected unsigned char [usertype] *[noderef] iomem_base drivers/platform/x86/apple-gmux.c:739:39: sparse: got void [noderef] __iomem * >> drivers/platform/x86/apple-gmux.c:889:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got unsigned char [usertype] *[noderef] iomem_base @@ drivers/platform/x86/apple-gmux.c:889:34: sparse: expected void volatile [noderef] __iomem *addr drivers/platform/x86/apple-gmux.c:889:34: sparse: got unsigned char [usertype] *[noderef] iomem_base drivers/platform/x86/apple-gmux.c:916:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got unsigned char [usertype] *[noderef] iomem_base @@ drivers/platform/x86/apple-gmux.c:916:34: sparse: expected void volatile [noderef] __iomem *addr drivers/platform/x86/apple-gmux.c:916:34: sparse: got unsigned char [usertype] *[noderef] iomem_base >> drivers/platform/x86/apple-gmux.c:224:26: sparse: sparse: dereference of noderef expression drivers/platform/x86/apple-gmux.c:227:31: sparse: sparse: dereference of noderef expression drivers/platform/x86/apple-gmux.c:241:33: sparse: sparse: dereference of noderef expression drivers/platform/x86/apple-gmux.c:243:17: sparse: sparse: dereference of noderef expression drivers/platform/x86/apple-gmux.c:245:23: sparse: sparse: dereference of noderef expression drivers/platform/x86/apple-gmux.c:256:23: sparse: sparse: dereference of noderef expression drivers/platform/x86/apple-gmux.c:258:31: sparse: sparse: dereference of noderef expression drivers/platform/x86/apple-gmux.c:260:17: sparse: sparse: dereference of noderef expression drivers/platform/x86/apple-gmux.c:272:33: sparse: sparse: dereference of noderef expression drivers/platform/x86/apple-gmux.c:274:17: sparse: sparse: dereference of noderef expression drivers/platform/x86/apple-gmux.c:276:15: sparse: sparse: dereference of noderef expression drivers/platform/x86/apple-gmux.c:286:37: sparse: sparse: dereference of noderef expression drivers/platform/x86/apple-gmux.c:287:31: sparse: sparse: dereference of noderef expression drivers/platform/x86/apple-gmux.c:289:17: sparse: sparse: dereference of noderef expression drivers/platform/x86/apple-gmux.c: note: in included file: >> include/linux/apple-gmux.h:69:41: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected unsigned char [usertype] *[noderef] __iomem iomem_base @@ got void [noderef] __iomem * @@ include/linux/apple-gmux.h:69:41: sparse: expected unsigned char [usertype] *[noderef] __iomem iomem_base include/linux/apple-gmux.h:69:41: sparse: got void [noderef] __iomem * >> include/linux/apple-gmux.h:80:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem * @@ got unsigned char [usertype] * @@ include/linux/apple-gmux.h:80:34: sparse: expected void const [noderef] __iomem * include/linux/apple-gmux.h:80:34: sparse: got unsigned char [usertype] * >> include/linux/apple-gmux.h:81:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got unsigned char [usertype] *[noderef] __iomem iomem_base @@ include/linux/apple-gmux.h:81:17: sparse: expected void volatile [noderef] __iomem *addr include/linux/apple-gmux.h:81:17: sparse: got unsigned char [usertype] *[noderef] __iomem iomem_base >> include/linux/apple-gmux.h:72:14: sparse: sparse: dereference of noderef expression include/linux/apple-gmux.h:80:23: sparse: sparse: dereference of noderef expression include/linux/apple-gmux.h:81:17: sparse: sparse: dereference of noderef expression drivers/platform/x86/apple-gmux.c:740:22: sparse: sparse: dereference of noderef expression drivers/platform/x86/apple-gmux.c:888:13: sparse: sparse: dereference of noderef expression drivers/platform/x86/apple-gmux.c:889:25: sparse: sparse: dereference of noderef expression drivers/platform/x86/apple-gmux.c:915:13: sparse: sparse: dereference of noderef expression drivers/platform/x86/apple-gmux.c:916:25: sparse: sparse: dereference of noderef expression vim +224 drivers/platform/x86/apple-gmux.c 220 221 static int gmux_mmio_wait(struct apple_gmux_data *gmux_data) 222 { 223 int i = 200; > 224 u8 gwr = ioread8(gmux_data->iomem_base + GMUX_MMIO_COMMAND_SEND); 225 226 while (i && gwr) { > 227 gwr = ioread8(gmux_data->iomem_base + GMUX_MMIO_COMMAND_SEND); 228 udelay(100); 229 i--; 230 } 231 232 return !!i; 233 } 234 235 static u8 gmux_mmio_read8(struct apple_gmux_data *gmux_data, int port) 236 { 237 u8 val; 238 239 mutex_lock(&gmux_data->index_lock); 240 gmux_mmio_wait(gmux_data); > 241 iowrite8((port & 0xff), gmux_data->iomem_base + GMUX_MMIO_PORT_SELECT); 242 iowrite8(GMUX_MMIO_READ | sizeof(val), 243 gmux_data->iomem_base + GMUX_MMIO_COMMAND_SEND); 244 gmux_mmio_wait(gmux_data); > 245 val = ioread8(gmux_data->iomem_base); 246 mutex_unlock(&gmux_data->index_lock); 247 248 return val; 249 } 250 251 static void gmux_mmio_write8(struct apple_gmux_data *gmux_data, int port, 252 u8 val) 253 { 254 mutex_lock(&gmux_data->index_lock); 255 gmux_mmio_wait(gmux_data); > 256 iowrite8(val, gmux_data->iomem_base); 257 258 iowrite8(port & 0xff, gmux_data->iomem_base + GMUX_MMIO_PORT_SELECT); 259 iowrite8(GMUX_MMIO_WRITE | sizeof(val), 260 gmux_data->iomem_base + GMUX_MMIO_COMMAND_SEND); 261 262 gmux_mmio_wait(gmux_data); 263 mutex_unlock(&gmux_data->index_lock); 264 } 265 266 static u32 gmux_mmio_read32(struct apple_gmux_data *gmux_data, int port) 267 { 268 u32 val; 269 270 mutex_lock(&gmux_data->index_lock); 271 gmux_mmio_wait(gmux_data); > 272 iowrite8((port & 0xff), gmux_data->iomem_base + GMUX_MMIO_PORT_SELECT); 273 iowrite8(GMUX_MMIO_READ | sizeof(val), 274 gmux_data->iomem_base + GMUX_MMIO_COMMAND_SEND); 275 gmux_mmio_wait(gmux_data); > 276 val = be32_to_cpu(ioread32(gmux_data->iomem_base)); 277 mutex_unlock(&gmux_data->index_lock); 278 279 return val; 280 } 281 282 static void gmux_mmio_write32(struct apple_gmux_data *gmux_data, int port, 283 u32 val) 284 { 285 mutex_lock(&gmux_data->index_lock); > 286 iowrite32(cpu_to_be32(val), gmux_data->iomem_base); > 287 iowrite8(port & 0xff, gmux_data->iomem_base + GMUX_MMIO_PORT_SELECT); 288 iowrite8(GMUX_MMIO_WRITE | sizeof(val), 289 gmux_data->iomem_base + GMUX_MMIO_COMMAND_SEND); 290 gmux_mmio_wait(gmux_data); 291 mutex_unlock(&gmux_data->index_lock); 292 } 293 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
