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    Subjectdrivers/remoteproc/ti_k3_r5_remoteproc.c:377:28: sparse: sparse: incorrect type in argument 1 (different address spaces)
    tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
    head: a68a0262abdaa251e12c53715f48e698a18ef402
    commit: 34f2653686fecc9bd5a4ee16724768c72953fb57 remoteproc: k3-r5: Initialize TCM memories for ECC
    date: 8 weeks ago
    config: arm64-randconfig-s031-20201209 (attached as .config)
    compiler: aarch64-linux-gcc (GCC) 9.3.0
    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: v0.6.3-179-ga00755aa-dirty
    # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=34f2653686fecc9bd5a4ee16724768c72953fb57
    git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
    git fetch --no-tags linus master
    git checkout 34f2653686fecc9bd5a4ee16724768c72953fb57
    # save the attached .config to linux build tree
    COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=arm64

    If you fix the issue, kindly add following tag as appropriate
    Reported-by: kernel test robot <lkp@intel.com>


    "sparse warnings: (new ones prefixed by >>)"
    >> drivers/remoteproc/ti_k3_r5_remoteproc.c:377:28: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *p @@ got void [noderef] __iomem *cpu_addr @@
    drivers/remoteproc/ti_k3_r5_remoteproc.c:377:28: sparse: expected void *p
    drivers/remoteproc/ti_k3_r5_remoteproc.c:377:28: sparse: got void [noderef] __iomem *cpu_addr
    drivers/remoteproc/ti_k3_r5_remoteproc.c:380:28: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *p @@ got void [noderef] __iomem *cpu_addr @@
    drivers/remoteproc/ti_k3_r5_remoteproc.c:380:28: sparse: expected void *p
    drivers/remoteproc/ti_k3_r5_remoteproc.c:380:28: sparse: got void [noderef] __iomem *cpu_addr

    vim +377 drivers/remoteproc/ti_k3_r5_remoteproc.c

    346
    347 /*
    348 * The R5F cores have controls for both a reset and a halt/run. The code
    349 * execution from DDR requires the initial boot-strapping code to be run
    350 * from the internal TCMs. This function is used to release the resets on
    351 * applicable cores to allow loading into the TCMs. The .prepare() ops is
    352 * invoked by remoteproc core before any firmware loading, and is followed
    353 * by the .start() ops after loading to actually let the R5 cores run.
    354 */
    355 static int k3_r5_rproc_prepare(struct rproc *rproc)
    356 {
    357 struct k3_r5_rproc *kproc = rproc->priv;
    358 struct k3_r5_cluster *cluster = kproc->cluster;
    359 struct k3_r5_core *core = kproc->core;
    360 struct device *dev = kproc->dev;
    361 int ret;
    362
    363 ret = (cluster->mode == CLUSTER_MODE_LOCKSTEP) ?
    364 k3_r5_lockstep_release(cluster) : k3_r5_split_release(core);
    365 if (ret) {
    366 dev_err(dev, "unable to enable cores for TCM loading, ret = %d\n",
    367 ret);
    368 return ret;
    369 }
    370
    371 /*
    372 * Zero out both TCMs unconditionally (access from v8 Arm core is not
    373 * affected by ATCM & BTCM enable configuration values) so that ECC
    374 * can be effective on all TCM addresses.
    375 */
    376 dev_dbg(dev, "zeroing out ATCM memory\n");
    > 377 memset(core->mem[0].cpu_addr, 0x00, core->mem[0].size);
    378
    379 dev_dbg(dev, "zeroing out BTCM memory\n");
    380 memset(core->mem[1].cpu_addr, 0x00, core->mem[1].size);
    381
    382 return 0;
    383 }
    384

    ---
    0-DAY CI Kernel Test Service, Intel Corporation
    https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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