Messages in this thread Patch in this message | | | From | Yury Norov <> | Subject | [PATCH v6 08/19] arm64:ilp32: add is_ilp32_compat_{task,thread} and TIF_32BIT_AARCH64 | Date | Wed, 18 Nov 2015 00:16:48 +0300 |
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From: Andrew Pinski <apinski@cavium.com>
Reviewed-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com> Signed-off-by: Yury Norov <ynorov@caviumnetworks.com> Signed-off-by: Andrew Pinski <Andrew.Pinski@caviumnetworks.com> --- 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
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