linux-kernel - drivers/crypto/nintendo-aes.c:72: Error: unrecognised instruction dcbf

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Date:   Tue, 28 Sep 2021 19:06:10 +0800
From:   kernel test robot <lkp@...el.com>
To:     Emmanuel Gil Peyrot <linkmauve@...kmauve.fr>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        0day robot <lkp@...el.com>
Subject: drivers/crypto/nintendo-aes.c:72: Error: unrecognised instruction
 dcbf

tree:   https://github.com/0day-ci/linux/commits/Emmanuel-Gil-Peyrot/crypto-nintendo-aes-add-a-new-AES-driver/20210922-122123
head:   27d5ea5f78903c9d07dacbbb1eceae4fb23ed601
commit: e2320d1d64125b864ed1e2d1a33b4b07801ddd33 crypto: nintendo-aes - add a new AES driver
date:   6 days ago
config: nios2-allyesconfig (attached as .config)
compiler: nios2-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/e2320d1d64125b864ed1e2d1a33b4b07801ddd33
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Emmanuel-Gil-Peyrot/crypto-nintendo-aes-add-a-new-AES-driver/20210922-122123
        git checkout e2320d1d64125b864ed1e2d1a33b4b07801ddd33
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=nios2 SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

   drivers/crypto/nintendo-aes.c: Assembler messages:
>> drivers/crypto/nintendo-aes.c:72: Error: unrecognised instruction dcbf
>> drivers/crypto/nintendo-aes.c:94: Error: unrecognised instruction dcbi


vim +72 drivers/crypto/nintendo-aes.c

    61	
    62	static int
    63	do_crypt(const void *src, void *dst, u32 len, u32 flags)
    64	{
    65		u32 blocks = ((len >> 4) - 1) & AES_CTRL_BLOCK;
    66		u32 status;
    67		u32 counter = OP_TIMEOUT;
    68		u32 i;
    69	
    70		/* Flush out all of src, we can’t know whether any of it is in cache */
    71		for (i = 0; i < len; i += 32)
  > 72			__asm__("dcbf 0, %0" : : "r" (src + i));
    73		__asm__("sync" : : : "memory");
    74	
    75		/* Set the addresses for DMA */
    76		iowrite32be(virt_to_phys((void *)src), base + AES_SRC);
    77		iowrite32be(virt_to_phys(dst), base + AES_DEST);
    78	
    79		/* Start the operation */
    80		iowrite32be(flags | blocks, base + AES_CTRL);
    81	
    82		/* TODO: figure out how to use interrupts here, this will probably
    83		 * lower throughput but let the CPU do other things while the AES
    84		 * engine is doing its work. */
    85		do {
    86			status = ioread32be(base + AES_CTRL);
    87			cpu_relax();
    88		} while ((status & AES_CTRL_EXEC) && --counter);
    89	
    90		/* Do we ever get called with dst ≠ src?  If so we have to invalidate
    91		 * dst in addition to the earlier flush of src. */
    92		if (unlikely(dst != src)) {
    93			for (i = 0; i < len; i += 32)
  > 94				__asm__("dcbi 0, %0" : : "r" (dst + i));
    95			__asm__("sync" : : : "memory");
    96		}
    97	
    98		return counter ? 0 : 1;
    99	}
   100	

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

Download attachment ".config.gz" of type "application/gzip" (60806 bytes)