diff options
| -rw-r--r-- | arch/blackfin/kernel/process.c | 6 | ||||
| -rw-r--r-- | include/asm-blackfin/processor.h | 5 |
2 files changed, 9 insertions, 2 deletions
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c index fb94cbe..be9fdd0 100644 --- a/arch/blackfin/kernel/process.c +++ b/arch/blackfin/kernel/process.c @@ -324,6 +324,12 @@ int _access_ok(unsigned long addr, unsigned long size) return 1; if (addr >= memory_mtd_end && (addr + size) <= physical_mem_end) return 1; + +#ifdef CONFIG_ROMFS_MTD_FS + /* For XIP, allow user space to use pointers within the ROMFS. */ + if (addr >= memory_mtd_start && (addr + size) <= memory_mtd_end) + return 1; +#endif #else if (addr >= memory_start && (addr + size) <= physical_mem_end) return 1; diff --git a/include/asm-blackfin/processor.h b/include/asm-blackfin/processor.h index 1033e5c..1c00407 100644 --- a/include/asm-blackfin/processor.h +++ b/include/asm-blackfin/processor.h @@ -26,9 +26,10 @@ static inline void wrusp(unsigned long usp) /* * User space process size: 1st byte beyond user address space. + * Fairly meaningless on nommu. Parts of user programs can be scattered + * in a lot of places, so just disable this by setting it to 0xFFFFFFFF. */ -extern unsigned long memory_end; -#define TASK_SIZE (memory_end) +#define TASK_SIZE 0xFFFFFFFF #ifdef __KERNEL__ #define STACK_TOP TASK_SIZE |