It is a principal objective of IRQ stack feature to reduce kernel stack size. Therefore, the size is set to 8KB when a separate IRQ stack is active.
Signed-off-by: Jungseok Lee <jungseokle...@gmail.com> --- arch/arm64/include/asm/thread_info.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm64/include/asm/thread_info.h b/arch/arm64/include/asm/thread_info.h index 5345a67..e79210d 100644 --- a/arch/arm64/include/asm/thread_info.h +++ b/arch/arm64/include/asm/thread_info.h @@ -24,10 +24,18 @@ #include <linux/compiler.h> #ifndef CONFIG_ARM64_64K_PAGES +#ifdef CONFIG_IRQ_STACK +#define THREAD_SIZE_ORDER 1 +#else #define THREAD_SIZE_ORDER 2 #endif +#endif +#ifdef CONFIG_IRQ_STACK +#define THREAD_SIZE 8192 +#else #define THREAD_SIZE 16384 +#endif #define THREAD_START_SP (THREAD_SIZE - 16) #ifndef __ASSEMBLY__ -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
