Re: [RFC PATCH v7 14/21] riscv: Add support for kernel mode vector

[kernel test robot <lkp@intel.com>]

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Hi Greentime,

[FYI, it's a private test report for your RFC patch.]
[auto build test ERROR on linus/master]
[also build test ERROR on v5.9-rc4]
[cannot apply to next-20200910]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Greentime-Hu/riscv-Add-vector-ISA-support/20200910-163426
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 7fe10096c1508c7f033d34d0741809f8eecc1ed4
config: riscv-allmodconfig (attached as .config)
compiler: riscv64-linux-gcc (GCC) 9.3.0
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
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=riscv 

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

All errors (new ones prefixed by >>):

   arch/riscv/kernel/kernel_mode_vector.c: Assembler messages:
   arch/riscv/kernel/kernel_mode_vector.c:88: Error: unrecognized opcode `vsetvli a5,x0,e8,m1'
>> arch/riscv/kernel/kernel_mode_vector.c:89: Error: unrecognized opcode `vmv.v.i v0,0'
   arch/riscv/kernel/kernel_mode_vector.c:90: Error: unrecognized opcode `vmv.v.i v1,0'
   arch/riscv/kernel/kernel_mode_vector.c:91: Error: unrecognized opcode `vmv.v.i v2,0'
   arch/riscv/kernel/kernel_mode_vector.c:92: Error: unrecognized opcode `vmv.v.i v3,0'
   arch/riscv/kernel/kernel_mode_vector.c:93: Error: unrecognized opcode `vmv.v.i v4,0'
   arch/riscv/kernel/kernel_mode_vector.c:94: Error: unrecognized opcode `vmv.v.i v5,0'
   arch/riscv/kernel/kernel_mode_vector.c:95: Error: unrecognized opcode `vmv.v.i v6,0'
   arch/riscv/kernel/kernel_mode_vector.c:96: Error: unrecognized opcode `vmv.v.i v7,0'
>> arch/riscv/kernel/kernel_mode_vector.c:97: Error: unrecognized opcode `vmv.v.i v8,0'
   arch/riscv/kernel/kernel_mode_vector.c:98: Error: unrecognized opcode `vmv.v.i v9,0'
   arch/riscv/kernel/kernel_mode_vector.c:99: Error: unrecognized opcode `vmv.v.i v10,0'
   arch/riscv/kernel/kernel_mode_vector.c:100: Error: unrecognized opcode `vmv.v.i v11,0'
   arch/riscv/kernel/kernel_mode_vector.c:101: Error: unrecognized opcode `vmv.v.i v12,0'
   arch/riscv/kernel/kernel_mode_vector.c:102: Error: unrecognized opcode `vmv.v.i v13,0'
   arch/riscv/kernel/kernel_mode_vector.c:103: Error: unrecognized opcode `vmv.v.i v14,0'
   arch/riscv/kernel/kernel_mode_vector.c:104: Error: unrecognized opcode `vmv.v.i v15,0'
>> arch/riscv/kernel/kernel_mode_vector.c:105: Error: unrecognized opcode `vmv.v.i v16,0'
   arch/riscv/kernel/kernel_mode_vector.c:106: Error: unrecognized opcode `vmv.v.i v17,0'
   arch/riscv/kernel/kernel_mode_vector.c:107: Error: unrecognized opcode `vmv.v.i v18,0'
   arch/riscv/kernel/kernel_mode_vector.c:108: Error: unrecognized opcode `vmv.v.i v19,0'
   arch/riscv/kernel/kernel_mode_vector.c:109: Error: unrecognized opcode `vmv.v.i v20,0'
   arch/riscv/kernel/kernel_mode_vector.c:110: Error: unrecognized opcode `vmv.v.i v21,0'
   arch/riscv/kernel/kernel_mode_vector.c:111: Error: unrecognized opcode `vmv.v.i v22,0'
   arch/riscv/kernel/kernel_mode_vector.c:112: Error: unrecognized opcode `vmv.v.i v23,0'
>> arch/riscv/kernel/kernel_mode_vector.c:113: Error: unrecognized opcode `vmv.v.i v24,0'
   arch/riscv/kernel/kernel_mode_vector.c:114: Error: unrecognized opcode `vmv.v.i v25,0'
   arch/riscv/kernel/kernel_mode_vector.c:115: Error: unrecognized opcode `vmv.v.i v26,0'
   arch/riscv/kernel/kernel_mode_vector.c:116: Error: unrecognized opcode `vmv.v.i v27,0'
   arch/riscv/kernel/kernel_mode_vector.c:117: Error: unrecognized opcode `vmv.v.i v28,0'
   arch/riscv/kernel/kernel_mode_vector.c:118: Error: unrecognized opcode `vmv.v.i v29,0'
   arch/riscv/kernel/kernel_mode_vector.c:119: Error: unrecognized opcode `vmv.v.i v30,0'
   arch/riscv/kernel/kernel_mode_vector.c:120: Error: unrecognized opcode `vmv.v.i v31,0'

# https://github.com/0day-ci/linux/commit/9bc3e08158278cd26d7e537b6315303de245cfbb
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Greentime-Hu/riscv-Add-vector-ISA-support/20200910-163426
git checkout 9bc3e08158278cd26d7e537b6315303de245cfbb
vim +89 arch/riscv/kernel/kernel_mode_vector.c

    83	
    84	static void vector_flush_cpu_state(void)
    85	{
    86		long tmp;
    87	
  > 88		__asm__ __volatile__ (
  > 89			"vsetvli %0, x0, e8, m1\n"
    90			"vmv.v.i v0, 0\n"
    91			"vmv.v.i v1, 0\n"
    92			"vmv.v.i v2, 0\n"
    93			"vmv.v.i v3, 0\n"
    94			"vmv.v.i v4, 0\n"
    95			"vmv.v.i v5, 0\n"
  > 96			"vmv.v.i v6, 0\n"
  > 97			"vmv.v.i v7, 0\n"
    98			"vmv.v.i v8, 0\n"
    99			"vmv.v.i v9, 0\n"
   100			"vmv.v.i v10, 0\n"
   101			"vmv.v.i v11, 0\n"
   102			"vmv.v.i v12, 0\n"
   103			"vmv.v.i v13, 0\n"
 > 104			"vmv.v.i v14, 0\n"
 > 105			"vmv.v.i v15, 0\n"
   106			"vmv.v.i v16, 0\n"
   107			"vmv.v.i v17, 0\n"
   108			"vmv.v.i v18, 0\n"
   109			"vmv.v.i v19, 0\n"
   110			"vmv.v.i v20, 0\n"
   111			"vmv.v.i v21, 0\n"
   112			"vmv.v.i v22, 0\n"
 > 113			"vmv.v.i v23, 0\n"
   114			"vmv.v.i v24, 0\n"
   115			"vmv.v.i v25, 0\n"
   116			"vmv.v.i v26, 0\n"
   117			"vmv.v.i v27, 0\n"
   118			"vmv.v.i v28, 0\n"
   119			"vmv.v.i v29, 0\n"
   120			"vmv.v.i v30, 0\n"
   121			"vmv.v.i v31, 0\n":"=r"(tmp)::);
   122	}
   123	

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

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