vserver 2.0 rc7

[linux-2.6.git] / include / asm-arm / io.h

diff --git a/include/asm-arm/io.h b/include/asm-arm/io.h
index 6051337..658ffa3 100644 (file)
--- a/include/asm-arm/io.h
+++ b/include/asm-arm/io.h
@@ -47,13 +47,13 @@ extern void __raw_readsb(void __iomem *addr, void *data, int bytelen);
 extern void __raw_readsw(void __iomem *addr, void *data, int wordlen);
 extern void __raw_readsl(void __iomem *addr, void *data, int longlen);
 
-#define __raw_writeb(v,a)      (*(volatile unsigned char __force  *)(a) = (v))
-#define __raw_writew(v,a)      (*(volatile unsigned short __force *)(a) = (v))
-#define __raw_writel(v,a)      (*(volatile unsigned int __force   *)(a) = (v))
+#define __raw_writeb(v,a)      (__chk_io_ptr(a), *(volatile unsigned char __force  *)(a) = (v))
+#define __raw_writew(v,a)      (__chk_io_ptr(a), *(volatile unsigned short __force *)(a) = (v))
+#define __raw_writel(v,a)      (__chk_io_ptr(a), *(volatile unsigned int __force   *)(a) = (v))
 
-#define __raw_readb(a)         (*(volatile unsigned char __force  *)(a))
-#define __raw_readw(a)         (*(volatile unsigned short __force *)(a))
-#define __raw_readl(a)         (*(volatile unsigned int __force   *)(a))
+#define __raw_readb(a)         (__chk_io_ptr(a), *(volatile unsigned char __force  *)(a))
+#define __raw_readw(a)         (__chk_io_ptr(a), *(volatile unsigned short __force *)(a))
+#define __raw_readl(a)         (__chk_io_ptr(a), *(volatile unsigned int __force   *)(a))
 
 /*
  * Bad read/write accesses...
@@ -99,12 +99,16 @@ extern void __readwrite_bug(const char *fn);
  */
 #ifdef __io
 #define outb(v,p)              __raw_writeb(v,__io(p))
-#define outw(v,p)              __raw_writew(cpu_to_le16(v),__io(p))
-#define outl(v,p)              __raw_writel(cpu_to_le32(v),__io(p))
+#define outw(v,p)              __raw_writew((__force __u16) \
+                                       cpu_to_le16(v),__io(p))
+#define outl(v,p)              __raw_writel((__force __u32) \
+                                       cpu_to_le32(v),__io(p))
 
-#define inb(p) ({ unsigned int __v = __raw_readb(__io(p)); __v; })
-#define inw(p) ({ unsigned int __v = le16_to_cpu(__raw_readw(__io(p))); __v; })
-#define inl(p) ({ unsigned int __v = le32_to_cpu(__raw_readl(__io(p))); __v; })
+#define inb(p) ({ __u8 __v = __raw_readb(__io(p)); __v; })
+#define inw(p) ({ __u16 __v = le16_to_cpu((__force __le16) \
+                       __raw_readw(__io(p))); __v; })
+#define inl(p) ({ __u32 __v = le32_to_cpu((__force __le32) \
+                       __raw_readl(__io(p))); __v; })
 
 #define outsb(p,d,l)           __raw_writesb(__io(p),d,l)
 #define outsw(p,d,l)           __raw_writesw(__io(p),d,l)
@@ -149,9 +153,11 @@ extern void _memset_io(void __iomem *, int, size_t);
  * IO port primitives for more information.
  */
 #ifdef __mem_pci
-#define readb(c) ({ unsigned int __v = __raw_readb(__mem_pci(c)); __v; })
-#define readw(c) ({ unsigned int __v = le16_to_cpu(__raw_readw(__mem_pci(c))); __v; })
-#define readl(c) ({ unsigned int __v = le32_to_cpu(__raw_readl(__mem_pci(c))); __v; })
+#define readb(c) ({ __u8  __v = __raw_readb(__mem_pci(c)); __v; })
+#define readw(c) ({ __u16 __v = le16_to_cpu((__force __le16) \
+                                       __raw_readw(__mem_pci(c))); __v; })
+#define readl(c) ({ __u32 __v = le32_to_cpu((__force __le32) \
+                                       __raw_readl(__mem_pci(c))); __v; })
 #define readb_relaxed(addr) readb(addr)
 #define readw_relaxed(addr) readw(addr)
 #define readl_relaxed(addr) readl(addr)
@@ -161,8 +167,10 @@ extern void _memset_io(void __iomem *, int, size_t);
 #define readsl(p,d,l)          __raw_readsl(__mem_pci(p),d,l)
 
 #define writeb(v,c)            __raw_writeb(v,__mem_pci(c))
-#define writew(v,c)            __raw_writew(cpu_to_le16(v),__mem_pci(c))
-#define writel(v,c)            __raw_writel(cpu_to_le32(v),__mem_pci(c))
+#define writew(v,c)            __raw_writew((__force __u16) \
+                                       cpu_to_le16(v),__mem_pci(c))
+#define writel(v,c)            __raw_writel((__force __u32) \
+                                       cpu_to_le32(v),__mem_pci(c))
 
 #define writesb(p,d,l)         __raw_writesb(__mem_pci(p),d,l)
 #define writesw(p,d,l)         __raw_writesw(__mem_pci(p),d,l)
@@ -271,5 +279,16 @@ extern void __iounmap(void __iomem *addr);
 #define BIOVEC_MERGEABLE(vec1, vec2)   \
        ((bvec_to_phys((vec1)) + (vec1)->bv_len) == bvec_to_phys((vec2)))
 
+/*
+ * Convert a physical pointer to a virtual kernel pointer for /dev/mem
+ * access
+ */
+#define xlate_dev_mem_ptr(p)   __va(p)
+
+/*
+ * Convert a virtual cached pointer to an uncached pointer
+ */
+#define xlate_dev_kmem_ptr(p)  p
+
 #endif /* __KERNEL__ */
 #endif /* __ASM_ARM_IO_H */