diff options
| author | Michael Ellerman <mpe@ellerman.id.au> | 2017-07-03 23:05:43 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-07-03 23:05:43 +1000 |
| commit | 218ea31039e84901b449c3769035456688f6e17d (patch) | |
| tree | 340773129b6a056c07b3ffe6d60326e0e89ef73c /arch/powerpc/include/asm/processor.h | |
| parent | 5405c92bc2cd0c09c7f9716af234b45ef66faa94 (diff) | |
| parent | d6bd8194e2867e85ac2de63486d3b83ccfae4e62 (diff) | |
| download | lwn-218ea31039e84901b449c3769035456688f6e17d.tar.gz lwn-218ea31039e84901b449c3769035456688f6e17d.zip | |
Merge branch 'fixes' into next
Merge our fixes branch, a few of them are tripping people up while
working on top of next, and we also have a dependency between the CXL
fixes and new CXL code we want to merge into next.
Diffstat (limited to 'arch/powerpc/include/asm/processor.h')
| -rw-r--r-- | arch/powerpc/include/asm/processor.h | 25 |
1 files changed, 12 insertions, 13 deletions
diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h index 832775771bd3..f6a25b2d9019 100644 --- a/arch/powerpc/include/asm/processor.h +++ b/arch/powerpc/include/asm/processor.h @@ -110,13 +110,18 @@ void release_thread(struct task_struct *); #define TASK_SIZE_128TB (0x0000800000000000UL) #define TASK_SIZE_512TB (0x0002000000000000UL) -#ifdef CONFIG_PPC_BOOK3S_64 +/* + * For now 512TB is only supported with book3s and 64K linux page size. + */ +#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_PPC_64K_PAGES) /* * Max value currently used: */ -#define TASK_SIZE_USER64 TASK_SIZE_512TB +#define TASK_SIZE_USER64 TASK_SIZE_512TB +#define DEFAULT_MAP_WINDOW_USER64 TASK_SIZE_128TB #else -#define TASK_SIZE_USER64 TASK_SIZE_64TB +#define TASK_SIZE_USER64 TASK_SIZE_64TB +#define DEFAULT_MAP_WINDOW_USER64 TASK_SIZE_64TB #endif /* @@ -132,7 +137,7 @@ void release_thread(struct task_struct *); * space during mmap's. */ #define TASK_UNMAPPED_BASE_USER32 (PAGE_ALIGN(TASK_SIZE_USER32 / 4)) -#define TASK_UNMAPPED_BASE_USER64 (PAGE_ALIGN(TASK_SIZE_128TB / 4)) +#define TASK_UNMAPPED_BASE_USER64 (PAGE_ALIGN(DEFAULT_MAP_WINDOW_USER64 / 4)) #define TASK_UNMAPPED_BASE ((is_32bit_task()) ? \ TASK_UNMAPPED_BASE_USER32 : TASK_UNMAPPED_BASE_USER64 ) @@ -143,21 +148,15 @@ void release_thread(struct task_struct *); * with 128TB and conditionally enable upto 512TB */ #ifdef CONFIG_PPC_BOOK3S_64 -#define DEFAULT_MAP_WINDOW ((is_32bit_task()) ? \ - TASK_SIZE_USER32 : TASK_SIZE_128TB) +#define DEFAULT_MAP_WINDOW ((is_32bit_task()) ? \ + TASK_SIZE_USER32 : DEFAULT_MAP_WINDOW_USER64) #else #define DEFAULT_MAP_WINDOW TASK_SIZE #endif #ifdef __powerpc64__ -#ifdef CONFIG_PPC_BOOK3S_64 -/* Limit stack to 128TB */ -#define STACK_TOP_USER64 TASK_SIZE_128TB -#else -#define STACK_TOP_USER64 TASK_SIZE_USER64 -#endif - +#define STACK_TOP_USER64 DEFAULT_MAP_WINDOW_USER64 #define STACK_TOP_USER32 TASK_SIZE_USER32 #define STACK_TOP (is_32bit_task() ? \ |