diff options
Diffstat (limited to 'arch/s390/include/asm/set_memory.h')
| -rw-r--r-- | arch/s390/include/asm/set_memory.h | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/arch/s390/include/asm/set_memory.h b/arch/s390/include/asm/set_memory.h index 9f6c329a0d4e..06fbabe2f66c 100644 --- a/arch/s390/include/asm/set_memory.h +++ b/arch/s390/include/asm/set_memory.h @@ -24,14 +24,32 @@ enum { #define SET_MEMORY_INV BIT(_SET_MEMORY_INV_BIT) #define SET_MEMORY_DEF BIT(_SET_MEMORY_DEF_BIT) -int __set_memory(unsigned long addr, int numpages, unsigned long flags); +int __set_memory(unsigned long addr, unsigned long numpages, unsigned long flags); #define set_memory_rox set_memory_rox -#define __SET_MEMORY_FUNC(fname, flags) \ -static inline int fname(unsigned long addr, int numpages) \ -{ \ - return __set_memory(addr, numpages, (flags)); \ +/* + * Generate two variants of each set_memory() function: + * + * set_memory_yy(unsigned long addr, int numpages); + * __set_memory_yy(void *start, void *end); + * + * The second variant exists for both convenience to avoid the usual + * (unsigned long) casts, but unlike the first variant it can also be used + * for areas larger than 8TB, which may happen at memory initialization. + */ +#define __SET_MEMORY_FUNC(fname, flags) \ +static inline int fname(unsigned long addr, int numpages) \ +{ \ + return __set_memory(addr, numpages, (flags)); \ +} \ + \ +static inline int __##fname(void *start, void *end) \ +{ \ + unsigned long numpages; \ + \ + numpages = (end - start) >> PAGE_SHIFT; \ + return __set_memory((unsigned long)start, numpages, (flags)); \ } __SET_MEMORY_FUNC(set_memory_ro, SET_MEMORY_RO) |