diff options
Diffstat (limited to 'include/asm-s390')
| -rw-r--r-- | include/asm-s390/percpu.h | 20 | ||||
| -rw-r--r-- | include/asm-s390/pgtable.h | 10 | ||||
| -rw-r--r-- | include/asm-s390/processor.h | 2 | ||||
| -rw-r--r-- | include/asm-s390/unistd.h | 4 |
4 files changed, 22 insertions, 14 deletions
diff --git a/include/asm-s390/percpu.h b/include/asm-s390/percpu.h index 28b3517e787c..495ad99c7635 100644 --- a/include/asm-s390/percpu.h +++ b/include/asm-s390/percpu.h @@ -15,18 +15,20 @@ */ #if defined(__s390x__) && defined(MODULE) -#define __reloc_hide(var,offset) \ - (*({ unsigned long *__ptr; \ - asm ( "larl %0,per_cpu__"#var"@GOTENT" \ - : "=a" (__ptr) : "X" (per_cpu__##var) ); \ - (typeof(&per_cpu__##var))((*__ptr) + (offset)); })) +#define __reloc_hide(var,offset) (*({ \ + extern int simple_indentifier_##var(void); \ + unsigned long *__ptr; \ + asm ( "larl %0,per_cpu__"#var"@GOTENT" \ + : "=a" (__ptr) : "X" (per_cpu__##var) ); \ + (typeof(&per_cpu__##var))((*__ptr) + (offset)); })) #else -#define __reloc_hide(var, offset) \ - (*({ unsigned long __ptr; \ - asm ( "" : "=a" (__ptr) : "0" (&per_cpu__##var) ); \ - (typeof(&per_cpu__##var)) (__ptr + (offset)); })) +#define __reloc_hide(var, offset) (*({ \ + extern int simple_indentifier_##var(void); \ + unsigned long __ptr; \ + asm ( "" : "=a" (__ptr) : "0" (&per_cpu__##var) ); \ + (typeof(&per_cpu__##var)) (__ptr + (offset)); })) #endif diff --git a/include/asm-s390/pgtable.h b/include/asm-s390/pgtable.h index 1a07028d575e..e965309fedac 100644 --- a/include/asm-s390/pgtable.h +++ b/include/asm-s390/pgtable.h @@ -664,11 +664,13 @@ static inline pte_t mk_pte_phys(unsigned long physpage, pgprot_t pgprot) #define pte_pfn(x) (pte_val(x) >> PAGE_SHIFT) #define pte_page(x) pfn_to_page(pte_pfn(x)) -#define pmd_page_kernel(pmd) (pmd_val(pmd) & PAGE_MASK) +#define pmd_page_vaddr(pmd) (pmd_val(pmd) & PAGE_MASK) #define pmd_page(pmd) (mem_map+(pmd_val(pmd) >> PAGE_SHIFT)) -#define pgd_page_kernel(pgd) (pgd_val(pgd) & PAGE_MASK) +#define pgd_page_vaddr(pgd) (pgd_val(pgd) & PAGE_MASK) + +#define pgd_page(pgd) (mem_map+(pgd_val(pgd) >> PAGE_SHIFT)) /* to find an entry in a page-table-directory */ #define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1)) @@ -690,14 +692,14 @@ static inline pmd_t * pmd_offset(pgd_t * dir, unsigned long address) /* Find an entry in the second-level page table.. */ #define pmd_index(address) (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1)) #define pmd_offset(dir,addr) \ - ((pmd_t *) pgd_page_kernel(*(dir)) + pmd_index(addr)) + ((pmd_t *) pgd_page_vaddr(*(dir)) + pmd_index(addr)) #endif /* __s390x__ */ /* Find an entry in the third-level page table.. */ #define pte_index(address) (((address) >> PAGE_SHIFT) & (PTRS_PER_PTE-1)) #define pte_offset_kernel(pmd, address) \ - ((pte_t *) pmd_page_kernel(*(pmd)) + pte_index(address)) + ((pte_t *) pmd_page_vaddr(*(pmd)) + pte_index(address)) #define pte_offset_map(pmd, address) pte_offset_kernel(pmd, address) #define pte_offset_map_nested(pmd, address) pte_offset_kernel(pmd, address) #define pte_unmap(pte) do { } while (0) diff --git a/include/asm-s390/processor.h b/include/asm-s390/processor.h index a3a4e5fd30d7..578c2209fa76 100644 --- a/include/asm-s390/processor.h +++ b/include/asm-s390/processor.h @@ -337,6 +337,8 @@ struct notifier_block; int register_idle_notifier(struct notifier_block *nb); int unregister_idle_notifier(struct notifier_block *nb); +#define ARCH_LOW_ADDRESS_LIMIT 0x7fffffffUL + #endif /* diff --git a/include/asm-s390/unistd.h b/include/asm-s390/unistd.h index 02b942d85c37..d49c54cb5505 100644 --- a/include/asm-s390/unistd.h +++ b/include/asm-s390/unistd.h @@ -342,9 +342,11 @@ #ifdef __KERNEL__ +#include <linux/err.h> + #define __syscall_return(type, res) \ do { \ - if ((unsigned long)(res) >= (unsigned long)(-4095)) {\ + if ((unsigned long)(res) >= (unsigned long)(-MAX_ERRNO)) { \ errno = -(res); \ res = -1; \ } \ |
