Patch #1 fixes a bug when watchpoint is created with ptrace PPC_PTRACE_SETHWDEBUG and CONFIG_HAVE_HW_BREAKPOINT=N. patch #2 introduce new feature bit PPC_DEBUG_FEATURE_DATA_BP_ARCH_31 which will be set when running on ISA 3.1 compliant machine.
v2: https://lore.kernel.org/r/20200723093330.306341-1-ravi.bango...@linux.ibm.com v2->v3: - #1: is new - #2: Set PPC_DEBUG_FEATURE_DATA_BP_ARCH_31 unconditionally while running on p10. - Rebased to powerpc/next (cf1ae052e073) Ravi Bangoria (2): powerpc/watchpoint/ptrace: Fix SETHWDEBUG when CONFIG_HAVE_HW_BREAKPOINT=N powerpc/watchpoint/ptrace: Introduce PPC_DEBUG_FEATURE_DATA_BP_ARCH_31 Documentation/powerpc/ptrace.rst | 1 + arch/powerpc/include/uapi/asm/ptrace.h | 1 + arch/powerpc/kernel/ptrace/ptrace-noadv.c | 4 +++- 3 files changed, 5 insertions(+), 1 deletion(-) -- 2.26.2