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| author | Max Filippov <jcmvbkbc@gmail.com> | 2017-12-04 21:47:43 +0300 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2017-12-11 01:48:55 +0300 |
| commit | f4431396be5b26a9960daf502d129b1b5d126f5e (patch) | |
| tree | f37f6b0f91e8aae16f13622e81a838d7395de957 /arch/xtensa/include/asm/thread_info.h | |
| parent | 5cf97ebd8b40e2b1791136fc1476d17365864b18 (diff) | |
| download | linux-f4431396be5b26a9960daf502d129b1b5d126f5e.tar.xz | |
xtensa: consolidate kernel stack size related definitions
Define kernel stack size in kmem_layout and use it in
current_thread_info, GET_THREAD_INFO, THREAD_SIZE and THERAD_SIZE_ORDER
definitions.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'arch/xtensa/include/asm/thread_info.h')
| -rw-r--r-- | arch/xtensa/include/asm/thread_info.h | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/arch/xtensa/include/asm/thread_info.h b/arch/xtensa/include/asm/thread_info.h index 7be2400f745a..71c9865218ce 100644 --- a/arch/xtensa/include/asm/thread_info.h +++ b/arch/xtensa/include/asm/thread_info.h @@ -11,7 +11,9 @@ #ifndef _XTENSA_THREAD_INFO_H #define _XTENSA_THREAD_INFO_H -#ifdef __KERNEL__ +#include <asm/kmem_layout.h> + +#define CURRENT_SHIFT KERNEL_STACK_SHIFT #ifndef __ASSEMBLY__ # include <asm/processor.h> @@ -84,7 +86,7 @@ struct thread_info { static inline struct thread_info *current_thread_info(void) { struct thread_info *ti; - __asm__("extui %0,a1,0,13\n\t" + __asm__("extui %0, a1, 0, "__stringify(CURRENT_SHIFT)"\n\t" "xor %0, a1, %0" : "=&r" (ti) : ); return ti; } @@ -93,7 +95,7 @@ static inline struct thread_info *current_thread_info(void) /* how to get the thread information struct from ASM */ #define GET_THREAD_INFO(reg,sp) \ - extui reg, sp, 0, 13; \ + extui reg, sp, 0, CURRENT_SHIFT; \ xor reg, sp, reg #endif @@ -130,8 +132,7 @@ static inline struct thread_info *current_thread_info(void) */ #define TS_USEDFPU 0x0001 /* FPU was used by this task this quantum (SMP) */ -#define THREAD_SIZE 8192 //(2*PAGE_SIZE) -#define THREAD_SIZE_ORDER 1 +#define THREAD_SIZE KERNEL_STACK_SIZE +#define THREAD_SIZE_ORDER (KERNEL_STACK_SHIFT - PAGE_SHIFT) -#endif /* __KERNEL__ */ #endif /* _XTENSA_THREAD_INFO */ |