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Thu, 07 Apr 2022 00:13:22 +0000 Date: Thu, 7 Apr 2022 08:13:16 +0800 From: kernel test robot To: Kees Cook Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org Subject: drivers/remoteproc/ti_k3_r5_remoteproc.c:437:9: sparse: sparse: incorrect type in argument 1 (different address spaces) Message-ID: <202204070809.ucmsn4mT-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 3e732ebf7316ac83e8562db7e64cc68aec390a18 commit: 28e77cc1c0686621a4d416f599cee5ab369daa0a fortify: Detect struct member overflows in memset() at compile-time date: 7 weeks ago config: arm64-randconfig-s032-20220406 (https://download.01.org/0day-ci/archive/20220407/202204070809.ucmsn4mT-lkp@intel.com/config) compiler: aarch64-linux-gcc (GCC) 11.2.0 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-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=28e77cc1c0686621a4d416f599cee5ab369daa0a git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 28e77cc1c0686621a4d416f599cee5ab369daa0a # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 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 as appropriate Reported-by: kernel test robot sparse warnings: (new ones prefixed by >>) >> drivers/remoteproc/ti_k3_r5_remoteproc.c:437:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got void [noderef] __iomem *cpu_addr @@ drivers/remoteproc/ti_k3_r5_remoteproc.c:437:9: sparse: expected void const * drivers/remoteproc/ti_k3_r5_remoteproc.c:437:9: sparse: got void [noderef] __iomem *cpu_addr >> drivers/remoteproc/ti_k3_r5_remoteproc.c:437:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got void [noderef] __iomem *cpu_addr @@ drivers/remoteproc/ti_k3_r5_remoteproc.c:437:9: sparse: expected void const * drivers/remoteproc/ti_k3_r5_remoteproc.c:437:9: sparse: got void [noderef] __iomem *cpu_addr drivers/remoteproc/ti_k3_r5_remoteproc.c:437:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void * @@ got void [noderef] __iomem *cpu_addr @@ drivers/remoteproc/ti_k3_r5_remoteproc.c:437:9: sparse: expected void * drivers/remoteproc/ti_k3_r5_remoteproc.c:437:9: sparse: got void [noderef] __iomem *cpu_addr drivers/remoteproc/ti_k3_r5_remoteproc.c:440:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got void [noderef] __iomem *cpu_addr @@ drivers/remoteproc/ti_k3_r5_remoteproc.c:440:9: sparse: expected void const * drivers/remoteproc/ti_k3_r5_remoteproc.c:440:9: sparse: got void [noderef] __iomem *cpu_addr drivers/remoteproc/ti_k3_r5_remoteproc.c:440:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const * @@ got void [noderef] __iomem *cpu_addr @@ drivers/remoteproc/ti_k3_r5_remoteproc.c:440:9: sparse: expected void const * drivers/remoteproc/ti_k3_r5_remoteproc.c:440:9: sparse: got void [noderef] __iomem *cpu_addr drivers/remoteproc/ti_k3_r5_remoteproc.c:440:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void * @@ got void [noderef] __iomem *cpu_addr @@ drivers/remoteproc/ti_k3_r5_remoteproc.c:440:9: sparse: expected void * drivers/remoteproc/ti_k3_r5_remoteproc.c:440:9: sparse: got void [noderef] __iomem *cpu_addr vim +437 drivers/remoteproc/ti_k3_r5_remoteproc.c 6dedbd1d544389 Suman Anna 2020-10-02 378 6dedbd1d544389 Suman Anna 2020-10-02 379 /* 6dedbd1d544389 Suman Anna 2020-10-02 380 * The R5F cores have controls for both a reset and a halt/run. The code 6dedbd1d544389 Suman Anna 2020-10-02 381 * execution from DDR requires the initial boot-strapping code to be run 6dedbd1d544389 Suman Anna 2020-10-02 382 * from the internal TCMs. This function is used to release the resets on 6dedbd1d544389 Suman Anna 2020-10-02 383 * applicable cores to allow loading into the TCMs. The .prepare() ops is 6dedbd1d544389 Suman Anna 2020-10-02 384 * invoked by remoteproc core before any firmware loading, and is followed 6dedbd1d544389 Suman Anna 2020-10-02 385 * by the .start() ops after loading to actually let the R5 cores run. ee99ee7c929c3e Suman Anna 2021-03-27 386 * ee99ee7c929c3e Suman Anna 2021-03-27 387 * The Single-CPU mode on applicable SoCs (eg: AM64x) only uses Core0 to ee99ee7c929c3e Suman Anna 2021-03-27 388 * execute code, but combines the TCMs from both cores. The resets for both ee99ee7c929c3e Suman Anna 2021-03-27 389 * cores need to be released to make this possible, as the TCMs are in general ee99ee7c929c3e Suman Anna 2021-03-27 390 * private to each core. Only Core0 needs to be unhalted for running the ee99ee7c929c3e Suman Anna 2021-03-27 391 * cluster in this mode. The function uses the same reset logic as LockStep ee99ee7c929c3e Suman Anna 2021-03-27 392 * mode for this (though the behavior is agnostic of the reset release order). 6dedbd1d544389 Suman Anna 2020-10-02 393 */ 6dedbd1d544389 Suman Anna 2020-10-02 394 static int k3_r5_rproc_prepare(struct rproc *rproc) 6dedbd1d544389 Suman Anna 2020-10-02 395 { 6dedbd1d544389 Suman Anna 2020-10-02 396 struct k3_r5_rproc *kproc = rproc->priv; 6dedbd1d544389 Suman Anna 2020-10-02 397 struct k3_r5_cluster *cluster = kproc->cluster; 6dedbd1d544389 Suman Anna 2020-10-02 398 struct k3_r5_core *core = kproc->core; 6dedbd1d544389 Suman Anna 2020-10-02 399 struct device *dev = kproc->dev; 7508ea19b20da8 Suman Anna 2020-11-18 400 u32 ctrl = 0, cfg = 0, stat = 0; 7508ea19b20da8 Suman Anna 2020-11-18 401 u64 boot_vec = 0; 7508ea19b20da8 Suman Anna 2020-11-18 402 bool mem_init_dis; 6dedbd1d544389 Suman Anna 2020-10-02 403 int ret; 6dedbd1d544389 Suman Anna 2020-10-02 404 7508ea19b20da8 Suman Anna 2020-11-18 405 ret = ti_sci_proc_get_status(core->tsp, &boot_vec, &cfg, &ctrl, &stat); 7508ea19b20da8 Suman Anna 2020-11-18 406 if (ret < 0) 7508ea19b20da8 Suman Anna 2020-11-18 407 return ret; 7508ea19b20da8 Suman Anna 2020-11-18 408 mem_init_dis = !!(cfg & PROC_BOOT_CFG_FLAG_R5_MEM_INIT_DIS); 7508ea19b20da8 Suman Anna 2020-11-18 409 ee99ee7c929c3e Suman Anna 2021-03-27 410 /* Re-use LockStep-mode reset logic for Single-CPU mode */ ee99ee7c929c3e Suman Anna 2021-03-27 411 ret = (cluster->mode == CLUSTER_MODE_LOCKSTEP || ee99ee7c929c3e Suman Anna 2021-03-27 412 cluster->mode == CLUSTER_MODE_SINGLECPU) ? 6dedbd1d544389 Suman Anna 2020-10-02 413 k3_r5_lockstep_release(cluster) : k3_r5_split_release(core); 34f2653686fecc Suman Anna 2020-10-02 414 if (ret) { 6dedbd1d544389 Suman Anna 2020-10-02 415 dev_err(dev, "unable to enable cores for TCM loading, ret = %d\n", 6dedbd1d544389 Suman Anna 2020-10-02 416 ret); 6dedbd1d544389 Suman Anna 2020-10-02 417 return ret; 6dedbd1d544389 Suman Anna 2020-10-02 418 } 6dedbd1d544389 Suman Anna 2020-10-02 419 7508ea19b20da8 Suman Anna 2020-11-18 420 /* 7508ea19b20da8 Suman Anna 2020-11-18 421 * Newer IP revisions like on J7200 SoCs support h/w auto-initialization 7508ea19b20da8 Suman Anna 2020-11-18 422 * of TCMs, so there is no need to perform the s/w memzero. This bit is 7508ea19b20da8 Suman Anna 2020-11-18 423 * configurable through System Firmware, the default value does perform 7508ea19b20da8 Suman Anna 2020-11-18 424 * auto-init, but account for it in case it is disabled 7508ea19b20da8 Suman Anna 2020-11-18 425 */ 7508ea19b20da8 Suman Anna 2020-11-18 426 if (cluster->soc_data->tcm_ecc_autoinit && !mem_init_dis) { 7508ea19b20da8 Suman Anna 2020-11-18 427 dev_dbg(dev, "leveraging h/w init for TCM memories\n"); 7508ea19b20da8 Suman Anna 2020-11-18 428 return 0; 7508ea19b20da8 Suman Anna 2020-11-18 429 } 7508ea19b20da8 Suman Anna 2020-11-18 430 34f2653686fecc Suman Anna 2020-10-02 431 /* 34f2653686fecc Suman Anna 2020-10-02 432 * Zero out both TCMs unconditionally (access from v8 Arm core is not 34f2653686fecc Suman Anna 2020-10-02 433 * affected by ATCM & BTCM enable configuration values) so that ECC 34f2653686fecc Suman Anna 2020-10-02 434 * can be effective on all TCM addresses. 34f2653686fecc Suman Anna 2020-10-02 435 */ 34f2653686fecc Suman Anna 2020-10-02 436 dev_dbg(dev, "zeroing out ATCM memory\n"); 34f2653686fecc Suman Anna 2020-10-02 @437 memset(core->mem[0].cpu_addr, 0x00, core->mem[0].size); 34f2653686fecc Suman Anna 2020-10-02 438 34f2653686fecc Suman Anna 2020-10-02 439 dev_dbg(dev, "zeroing out BTCM memory\n"); 34f2653686fecc Suman Anna 2020-10-02 440 memset(core->mem[1].cpu_addr, 0x00, core->mem[1].size); 34f2653686fecc Suman Anna 2020-10-02 441 34f2653686fecc Suman Anna 2020-10-02 442 return 0; 34f2653686fecc Suman Anna 2020-10-02 443 } 34f2653686fecc Suman Anna 2020-10-02 444 :::::: The code at line 437 was first introduced by commit :::::: 34f2653686fecc9bd5a4ee16724768c72953fb57 remoteproc: k3-r5: Initialize TCM memories for ECC :::::: TO: Suman Anna :::::: CC: Bjorn Andersson -- 0-DAY CI Kernel Test Service https://01.org/lkp