diff options
Diffstat (limited to 'arch/powerpc/kernel/process.c')
| -rw-r--r-- | arch/powerpc/kernel/process.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index dd9e0d5386ee..225705aac814 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -67,6 +67,7 @@ #include <asm/cpu_has_feature.h> #include <asm/asm-prototypes.h> #include <asm/stacktrace.h> +#include <asm/hw_breakpoint.h> #include <linux/kprobes.h> #include <linux/kdebug.h> @@ -784,7 +785,7 @@ static inline int set_dabr(struct arch_hw_breakpoint *brk) return __set_dabr(dabr, dabrx); } -static inline int set_dawr(struct arch_hw_breakpoint *brk) +int set_dawr(struct arch_hw_breakpoint *brk) { unsigned long dawr, dawrx, mrd; @@ -816,7 +817,7 @@ void __set_breakpoint(struct arch_hw_breakpoint *brk) { memcpy(this_cpu_ptr(¤t_brk), brk, sizeof(*brk)); - if (cpu_has_feature(CPU_FTR_DAWR)) + if (dawr_enabled()) // Power8 or later set_dawr(brk); else if (!cpu_has_feature(CPU_FTR_ARCH_207S)) @@ -830,8 +831,8 @@ void __set_breakpoint(struct arch_hw_breakpoint *brk) /* Check if we have DAWR or DABR hardware */ bool ppc_breakpoint_available(void) { - if (cpu_has_feature(CPU_FTR_DAWR)) - return true; /* POWER8 DAWR */ + if (dawr_enabled()) + return true; /* POWER8 DAWR or POWER9 forced DAWR */ if (cpu_has_feature(CPU_FTR_ARCH_207S)) return false; /* POWER9 with DAWR disabled */ /* DABR: Everything but POWER8 and POWER9 */ |