tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: e134c93f788fb93fd6a3ec3af9af850a2048c7e6 commit: 408ec1ff0caa340c57eecf4cbd14ef0132036a50 [2370/9787] remoteproc: imx_dsp_rproc: Add custom memory copy implementation for i.MX DSP Cores config: arm64-randconfig-s053-20230406 (https://download.01.org/0day-ci/archive/20230407/202304070251.LY6c7kgm-lkp@xxxxxxxxx/config) compiler: aarch64-linux-gcc (GCC) 12.1.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # 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=408ec1ff0caa340c57eecf4cbd14ef0132036a50 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 408ec1ff0caa340c57eecf4cbd14ef0132036a50 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm64 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/remoteproc/ lib/ 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/202304070251.LY6c7kgm-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> drivers/remoteproc/imx_dsp_rproc.c:765:39: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got unsigned int [usertype] * @@ drivers/remoteproc/imx_dsp_rproc.c:765:39: sparse: expected void volatile [noderef] __iomem *addr drivers/remoteproc/imx_dsp_rproc.c:765:39: sparse: got unsigned int [usertype] * >> drivers/remoteproc/imx_dsp_rproc.c:775:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void * @@ drivers/remoteproc/imx_dsp_rproc.c:775:34: sparse: expected void const volatile [noderef] __iomem *addr drivers/remoteproc/imx_dsp_rproc.c:775:34: sparse: got void * >> drivers/remoteproc/imx_dsp_rproc.c:782:34: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/remoteproc/imx_dsp_rproc.c:782:34: sparse: expected void volatile [noderef] __iomem *addr drivers/remoteproc/imx_dsp_rproc.c:782:34: sparse: got void * drivers/remoteproc/imx_dsp_rproc.c:813:40: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got unsigned int [usertype] * @@ drivers/remoteproc/imx_dsp_rproc.c:813:40: sparse: expected void volatile [noderef] __iomem *addr drivers/remoteproc/imx_dsp_rproc.c:813:40: sparse: got unsigned int [usertype] * >> drivers/remoteproc/imx_dsp_rproc.c:823:29: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got unsigned int [usertype] *[assigned] tmp_dst @@ drivers/remoteproc/imx_dsp_rproc.c:823:29: sparse: expected void const volatile [noderef] __iomem *addr drivers/remoteproc/imx_dsp_rproc.c:823:29: sparse: got unsigned int [usertype] *[assigned] tmp_dst >> drivers/remoteproc/imx_dsp_rproc.c:827:29: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got unsigned int [usertype] *[assigned] tmp_dst @@ drivers/remoteproc/imx_dsp_rproc.c:827:29: sparse: expected void volatile [noderef] __iomem *addr drivers/remoteproc/imx_dsp_rproc.c:827:29: sparse: got unsigned int [usertype] *[assigned] tmp_dst vim +765 drivers/remoteproc/imx_dsp_rproc.c 740 741 /* 742 * Custom memory copy implementation for i.MX DSP Cores 743 * 744 * The IRAM is part of the HiFi DSP. 745 * According to hw specs only 32-bits writes are allowed. 746 */ 747 static int imx_dsp_rproc_memcpy(void *dest, const void *src, size_t size) 748 { 749 const u8 *src_byte = src; 750 const u32 *source = src; 751 u32 affected_mask; 752 u32 *dst = dest; 753 int i, q, r; 754 u32 tmp; 755 756 /* destination must be 32bit aligned */ 757 if (!IS_ALIGNED((uintptr_t)dest, 4)) 758 return -EINVAL; 759 760 q = size / 4; 761 r = size % 4; 762 763 /* copy data in units of 32 bits at a time */ 764 for (i = 0; i < q; i++) > 765 writel(source[i], &dst[i]); 766 767 if (r) { 768 affected_mask = GENMASK(8 * r, 0); 769 770 /* 771 * first read the 32bit data of dest, then change affected 772 * bytes, and write back to dest. 773 * For unaffected bytes, it should not be changed 774 */ > 775 tmp = readl(dest + q * 4); 776 tmp &= ~affected_mask; 777 778 /* avoid reading after end of source */ 779 for (i = 0; i < r; i++) 780 tmp |= (src_byte[q * 4 + i] << (8 * i)); 781 > 782 writel(tmp, dest + q * 4); 783 } 784 785 return 0; 786 } 787 788 /* 789 * Custom memset implementation for i.MX DSP Cores 790 * 791 * The IRAM is part of the HiFi DSP. 792 * According to hw specs only 32-bits writes are allowed. 793 */ 794 static int imx_dsp_rproc_memset(void *addr, u8 value, size_t size) 795 { 796 u32 tmp_val = value; 797 u32 *tmp_dst = addr; 798 u32 affected_mask; 799 int q, r; 800 u32 tmp; 801 802 /* destination must be 32bit aligned */ 803 if (!IS_ALIGNED((uintptr_t)addr, 4)) 804 return -EINVAL; 805 806 tmp_val |= tmp_val << 8; 807 tmp_val |= tmp_val << 16; 808 809 q = size / 4; 810 r = size % 4; 811 812 while (q--) 813 writel(tmp_val, tmp_dst++); 814 815 if (r) { 816 affected_mask = GENMASK(8 * r, 0); 817 818 /* 819 * first read the 32bit data of addr, then change affected 820 * bytes, and write back to addr. 821 * For unaffected bytes, it should not be changed 822 */ > 823 tmp = readl(tmp_dst); 824 tmp &= ~affected_mask; 825 826 tmp |= (tmp_val & affected_mask); > 827 writel(tmp, tmp_dst); 828 } 829 830 return 0; 831 } 832 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
