diff options
Diffstat (limited to 'arch/powerpc/include/asm/lppaca.h')
| -rw-r--r-- | arch/powerpc/include/asm/lppaca.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/lppaca.h b/arch/powerpc/include/asm/lppaca.h index 34d44cb17c87..ee1488d38fdc 100644 --- a/arch/powerpc/include/asm/lppaca.h +++ b/arch/powerpc/include/asm/lppaca.h @@ -45,6 +45,7 @@ #include <asm/types.h> #include <asm/mmu.h> #include <asm/firmware.h> +#include <asm/paca.h> /* * The lppaca is the "virtual processor area" registered with the hypervisor, @@ -127,13 +128,23 @@ struct lppaca { */ #define LPPACA_OLD_SHARED_PROC 2 -static inline bool lppaca_shared_proc(struct lppaca *l) +#ifdef CONFIG_PPC_PSERIES +/* + * All CPUs should have the same shared proc value, so directly access the PACA + * to avoid false positives from DEBUG_PREEMPT. + */ +static inline bool lppaca_shared_proc(void) { + struct lppaca *l = local_paca->lppaca_ptr; + if (!firmware_has_feature(FW_FEATURE_SPLPAR)) return false; return !!(l->__old_status & LPPACA_OLD_SHARED_PROC); } +#define get_lppaca() (get_paca()->lppaca_ptr) +#endif + /* * SLB shadow buffer structure as defined in the PAPR. The save_area * contains adjacent ESID and VSID pairs for each shadowed SLB. The |