v4: https://lists.ozlabs.org/pipermail/linuxppc-dev/2019-September/197621.html
v4->v5: - patch 1,2,3/7: Split v4 patch1 into three differnet patches. * 1st patch to replace hardcoded watchpoint length with macros * 2nd patch that fixes the unaligned watchpoint issue * 3rd patch that fixes ptrace code that mucks around address/len - patch 3/7: v4 patch1 was creating a regression in watchpoint length calculation in ptrace code. Fixed that. - patch 7/7: Disabled MODE_RANGE and 512 byte testcases for 8xx. (Build tested only) - patch 7/7: Unaligned watchpoints are not supported with DABR. Test unaligned watchpoint only when DAWR is present. Ravi Bangoria (7): Powerpc/Watchpoint: Introduce macros for watchpoint length Powerpc/Watchpoint: Fix length calculation for unaligned target Powerpc/Watchpoint: Fix ptrace code that muck around with address/len Powerpc/Watchpoint: Don't ignore extraneous exceptions blindly Powerpc/Watchpoint: Rewrite ptrace-hwbreak.c selftest Powerpc/Watchpoint: Add dar outside test in perf-hwbreak.c selftest Powerpc/Watchpoint: Support for 8xx in ptrace-hwbreak.c selftest arch/powerpc/include/asm/hw_breakpoint.h | 9 +- arch/powerpc/kernel/dawr.c | 6 +- arch/powerpc/kernel/hw_breakpoint.c | 119 ++-- arch/powerpc/kernel/process.c | 3 + arch/powerpc/kernel/ptrace.c | 16 +- arch/powerpc/xmon/xmon.c | 2 +- .../selftests/powerpc/ptrace/perf-hwbreak.c | 111 +++- .../selftests/powerpc/ptrace/ptrace-hwbreak.c | 581 +++++++++++------- 8 files changed, 582 insertions(+), 265 deletions(-) -- 2.21.0