diff options
| -rw-r--r-- | arch/s390/include/asm/io.h | 5 | ||||
| -rw-r--r-- | arch/s390/mm/maccess.c | 4 | ||||
| -rw-r--r-- | arch/x86/include/asm/io.h | 4 | ||||
| -rw-r--r-- | arch/x86/mm/ioremap.c | 4 | ||||
| -rw-r--r-- | drivers/char/mem.c | 13 |
5 files changed, 17 insertions, 13 deletions
diff --git a/arch/s390/include/asm/io.h b/arch/s390/include/asm/io.h index cd6b9ee7b69c9..d22c2eeae78fc 100644 --- a/arch/s390/include/asm/io.h +++ b/arch/s390/include/asm/io.h @@ -13,9 +13,10 @@ #include <asm/page.h> #include <asm/pci_io.h> -void *xlate_dev_mem_ptr(unsigned long phys); #define xlate_dev_mem_ptr xlate_dev_mem_ptr -void unxlate_dev_mem_ptr(unsigned long phys, void *addr); +void *xlate_dev_mem_ptr(phys_addr_t phys); +#define unxlate_dev_mem_ptr unxlate_dev_mem_ptr +void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr); /* * Convert a virtual cached pointer to an uncached pointer diff --git a/arch/s390/mm/maccess.c b/arch/s390/mm/maccess.c index 2a2e35416d2fe..2eb34bdfc6131 100644 --- a/arch/s390/mm/maccess.c +++ b/arch/s390/mm/maccess.c @@ -176,7 +176,7 @@ static int is_swapped(unsigned long addr) * For swapped prefix pages a new buffer is returned that contains a copy of * the absolute memory. The buffer size is maximum one page large. */ -void *xlate_dev_mem_ptr(unsigned long addr) +void *xlate_dev_mem_ptr(phys_addr_t addr) { void *bounce = (void *) addr; unsigned long size; @@ -197,7 +197,7 @@ void *xlate_dev_mem_ptr(unsigned long addr) /* * Free converted buffer for /dev/mem access (if necessary) */ -void unxlate_dev_mem_ptr(unsigned long addr, void *buf) +void unxlate_dev_mem_ptr(phys_addr_t addr, void *buf) { if ((void *) addr != buf) free_page((unsigned long) buf); diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h index b8237d8a1e0c8..ae2b593e7c6ef 100644 --- a/arch/x86/include/asm/io.h +++ b/arch/x86/include/asm/io.h @@ -310,8 +310,8 @@ BUILDIO(b, b, char) BUILDIO(w, w, short) BUILDIO(l, , int) -extern void *xlate_dev_mem_ptr(unsigned long phys); -extern void unxlate_dev_mem_ptr(unsigned long phys, void *addr); +extern void *xlate_dev_mem_ptr(phys_addr_t phys); +extern void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr); extern int ioremap_change_attr(unsigned long vaddr, unsigned long size, unsigned long prot_val); diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index af78e50ca6cee..b12f43c192cf7 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -327,7 +327,7 @@ EXPORT_SYMBOL(iounmap); * Convert a physical pointer to a virtual kernel pointer for /dev/mem * access */ -void *xlate_dev_mem_ptr(unsigned long phys) +void *xlate_dev_mem_ptr(phys_addr_t phys) { void *addr; unsigned long start = phys & PAGE_MASK; @@ -343,7 +343,7 @@ void *xlate_dev_mem_ptr(unsigned long phys) return addr; } -void unxlate_dev_mem_ptr(unsigned long phys, void *addr) +void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr) { if (page_is_ram(phys >> PAGE_SHIFT)) return; diff --git a/drivers/char/mem.c b/drivers/char/mem.c index 524b707894ef1..4c58333b42570 100644 --- a/drivers/char/mem.c +++ b/drivers/char/mem.c @@ -84,9 +84,12 @@ static inline int range_is_allowed(unsigned long pfn, unsigned long size) } #endif -void __weak unxlate_dev_mem_ptr(unsigned long phys, void *addr) +#ifndef unxlate_dev_mem_ptr +#define unxlate_dev_mem_ptr unxlate_dev_mem_ptr +void __weak unxlate_dev_mem_ptr(phys_addr_t phys, void *addr) { } +#endif /* * This funcion reads the *physical* memory. The f_pos points directly to the @@ -97,7 +100,7 @@ static ssize_t read_mem(struct file *file, char __user *buf, { phys_addr_t p = *ppos; ssize_t read, sz; - char *ptr; + void *ptr; if (p != *ppos) return 0; @@ -400,7 +403,7 @@ static ssize_t read_kmem(struct file *file, char __user *buf, * uncached, then it must also be accessed uncached * by the kernel or data corruption may occur */ - kbuf = xlate_dev_kmem_ptr((char *)p); + kbuf = xlate_dev_kmem_ptr((void *)p); if (copy_to_user(buf, kbuf, sz)) return -EFAULT; @@ -461,7 +464,7 @@ static ssize_t do_write_kmem(unsigned long p, const char __user *buf, #endif while (count > 0) { - char *ptr; + void *ptr; sz = size_inside_page(p, count); @@ -470,7 +473,7 @@ static ssize_t do_write_kmem(unsigned long p, const char __user *buf, * it must also be accessed uncached by the kernel or data * corruption may occur. */ - ptr = xlate_dev_kmem_ptr((char *)p); + ptr = xlate_dev_kmem_ptr((void *)p); copied = copy_from_user(ptr, buf, sz); if (copied) { |