[PATCH v3 4/4] riscv: Convert custom spinlock/rwlock to generic qspinlock/qrwlock

[Guo Ren]

haha, I forgot RV32, it needs a

#ifdef RV32
    srliw
#else
    srli
#endif

On Thu, Mar 25, 2021 at 7:16 PM kernel test robot <lkp at intel.com> wrote:
>
> Hi,
>
> Thank you for the patch! Yet something to improve:
>
> [auto build test ERROR on tip/locking/core]
> [also build test ERROR on linux/master linus/master v5.12-rc4 next-20210325]
> [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/guoren-kernel-org/riscv-Add-qspinlock-qrwlock/20210325-155933
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 5965a7adbd72dd9b288c0911cb73719fed1efa08
> config: riscv-rv32_defconfig (attached as .config)
> compiler: riscv32-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
>         # https://github.com/0day-ci/linux/commit/2bf2d117ab34b007089e20e1c46eff89b5da097e
>         git remote add linux-review https://github.com/0day-ci/linux
>         git fetch --no-tags linux-review guoren-kernel-org/riscv-Add-qspinlock-qrwlock/20210325-155933
>         git checkout 2bf2d117ab34b007089e20e1c46eff89b5da097e
>         # 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 at intel.com>
>
> All errors (new ones prefixed by >>):
>
>    kernel/locking/qspinlock.c: Assembler messages:
>    kernel/locking/qspinlock.c:184: Error: unrecognized opcode `srliw t1,t1,16'
>    kernel/locking/qspinlock.c:185: Error: unrecognized opcode `slliw t1,t1,16'
> >> kernel/locking/qspinlock.c:190: Error: unrecognized opcode `slliw a6,a6,16'
> >> kernel/locking/qspinlock.c:191: Error: unrecognized opcode `srliw a6,a6,16'
>    kernel/locking/qspinlock.c:184: Error: unrecognized opcode `slliw t1,t1,16'
>    kernel/locking/qspinlock.c:185: Error: unrecognized opcode `srliw t1,t1,16'
>    kernel/locking/qspinlock.c:187: Error: unrecognized opcode `slliw t3,t3,16'
> >> kernel/locking/qspinlock.c:191: Error: unrecognized opcode `srliw a6,a6,16'
>
>
> vim +190 kernel/locking/qspinlock.c
>
> 69f9cae90907e0 Peter Zijlstra (Intel  2015-04-24  187)
> 59fb586b4a07b4 Will Deacon            2018-04-26  188  /**
> 59fb586b4a07b4 Will Deacon            2018-04-26  189   * clear_pending - clear the pending bit.
> 59fb586b4a07b4 Will Deacon            2018-04-26 @190   * @lock: Pointer to queued spinlock structure
> 59fb586b4a07b4 Will Deacon            2018-04-26 @191   *
> 59fb586b4a07b4 Will Deacon            2018-04-26  192   * *,1,* -> *,0,*
> 59fb586b4a07b4 Will Deacon            2018-04-26  193   */
> 59fb586b4a07b4 Will Deacon            2018-04-26  194  static __always_inline void clear_pending(struct qspinlock *lock)
> 59fb586b4a07b4 Will Deacon            2018-04-26  195  {
> 59fb586b4a07b4 Will Deacon            2018-04-26  196   atomic_andnot(_Q_PENDING_VAL, &lock->val);
> 59fb586b4a07b4 Will Deacon            2018-04-26  197  }
> 59fb586b4a07b4 Will Deacon            2018-04-26  198
>
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org



-- 
Best Regards
 Guo Ren

ML: https://lore.kernel.org/linux-csky/