[PATCH v6 08/19] arm64:ilp32: add is_ilp32_compat_{task, thread} and TIF_32BIT_AARCH64
From: Yury Norov <hidden>
Date: 2015-11-17 21:19:49
Also in:
lkml
Subsystem:
arm64 port (aarch64 architecture), the rest · Maintainers:
Catalin Marinas, Will Deacon, Linus Torvalds
From: Andrew Pinski <redacted> Reviewed-by: David Daney <redacted> Signed-off-by: Philipp Tomsich <redacted> Signed-off-by: Christoph Muellner <redacted> Signed-off-by: Yury Norov <redacted> Signed-off-by: Andrew Pinski <redacted> --- arch/arm64/include/asm/compat.h | 38 +++++++++++++++++++++++++++++++++++- arch/arm64/include/asm/thread_info.h | 1 + 2 files changed, 38 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h
index 9700e5e..95d2d72 100644
--- a/arch/arm64/include/asm/compat.h
+++ b/arch/arm64/include/asm/compat.h@@ -324,9 +324,35 @@ static inline int is_a32_compat_thread(struct thread_info *thread) } #endif +#ifdef CONFIG_ARM64_ILP32 + +static inline int is_ilp32_compat_task(void) +{ + return test_thread_flag(TIF_32BIT_AARCH64); +} + +static inline int is_ilp32_compat_thread(struct thread_info *thread) +{ + return test_ti_thread_flag(thread, TIF_32BIT_AARCH64); +} + +#else + +static inline int is_ilp32_compat_task(void) +{ + return 0; +} + +static inline int is_ilp32_compat_thread(struct thread_info *thread) +{ + return 0; +} + +#endif + static inline int is_compat_task(void) { - return is_a32_compat_task(); + return is_a32_compat_task() || is_ilp32_compat_task(); } #else /* !CONFIG_COMPAT */
@@ -341,6 +367,16 @@ static inline int is_a32_compat_task(void) return 0; } +static inline int is_ilp32_compat_thread(struct thread_info *thread) +{ + return 0; +} + +static inline int is_ilp32_compat_task(void) +{ + return 0; +} + #endif /* CONFIG_COMPAT */ #endif /* __KERNEL__ */ #endif /* __ASM_COMPAT_H */
diff --git a/arch/arm64/include/asm/thread_info.h b/arch/arm64/include/asm/thread_info.h
index 7d03565..e72de74 100644
--- a/arch/arm64/include/asm/thread_info.h
+++ b/arch/arm64/include/asm/thread_info.h@@ -112,6 +112,7 @@ static inline struct thread_info *current_thread_info(void) #define TIF_SINGLESTEP 21 #define TIF_32BIT 22 /* AARCH32 process */ #define TIF_SWITCH_MM 23 /* deferred switch_mm */ +#define TIF_32BIT_AARCH64 24 /* 32 bit process on AArch64(ILP32) */ #define _TIF_SIGPENDING (1 << TIF_SIGPENDING) #define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
--
2.1.4