Re: [PATCH v3] powerpc/watchpoint: Workaround P10 DD1 issue with VSX-32 byte instructions

2020-12-15 Thread Michael Ellerman
On Fri, 6 Nov 2020 10:26:50 +0530, Ravi Bangoria wrote: > 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

[PATCH v3] powerpc/watchpoint: Workaround P10 DD1 issue with VSX-32 byte instructions

2020-11-05 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