Re: [PATCH 2/2] powerpc/watchpoint: Workaround P10 DD1 issue with VSX-32 byte instructions

2020-10-20 Thread kernel test robot
Hi Ravi, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on powerpc/next] [also build test WARNING on v5.9 next-20201016] [cannot apply to mpe/next scottwood/next] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch,

[PATCH 2/2] powerpc/watchpoint: Workaround P10 DD1 issue with VSX-32 byte instructions

2020-10-19 Thread Ravi Bangoria
POWER10 DD1 has an issue where it generates watchpoint exceptions when it shouldn't. The conditions where this occur are: - octword op - ending address of DAWR range is less than starting address of op - those addresses need to be in the same or in two consecutive 512B blocks - 'op address