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| author | kaf24@firebug.cl.cam.ac.uk <kaf24@firebug.cl.cam.ac.uk> | 2005-06-03 09:49:28 +0000 |
|---|---|---|
| committer | kaf24@firebug.cl.cam.ac.uk <kaf24@firebug.cl.cam.ac.uk> | 2005-06-03 09:49:28 +0000 |
| commit | 9703899a941e2a937dd7db885e324deb607e1c95 (patch) | |
| tree | d1ececcd935c2fd21782c79b482a0ca3c7e02041 /xen/include/asm-x86/io.h | |
| parent | 75c3a203651fb38a406d3da5092dcecdf0ad6fb1 (diff) | |
| download | xen-9703899a941e2a937dd7db885e324deb607e1c95.tar.gz xen-9703899a941e2a937dd7db885e324deb607e1c95.tar.bz2 xen-9703899a941e2a937dd7db885e324deb607e1c95.zip | |
bitkeeper revision 1.1660 (42a027a8dd_EUm7b7XhKL_lNM4H_Rg)
Add support for memory-mapped ns16550 uart.
Signed-off-by: Keir Fraser <keir@xensource.com>
Diffstat (limited to 'xen/include/asm-x86/io.h')
| -rw-r--r-- | xen/include/asm-x86/io.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/xen/include/asm-x86/io.h b/xen/include/asm-x86/io.h index 2d92fc9234..2b733e4e86 100644 --- a/xen/include/asm-x86/io.h +++ b/xen/include/asm-x86/io.h @@ -54,6 +54,15 @@ static inline void * phys_to_virt(unsigned long address) #define page_to_pfn(_page) ((unsigned long)((_page) - frame_table)) #define page_to_virt(_page) phys_to_virt(page_to_phys(_page)) +/* We don't need real ioremap() on Xen/x86. */ +#define ioremap(x,l) (__va(x)) + +#define readb(x) (*(volatile char *)(x)) +#define readw(x) (*(volatile short *)(x)) +#define readl(x) (*(volatile int *)(x)) +#define writeb(d,x) (*(volatile char *)(x) = (d)) +#define writew(d,x) (*(volatile short *)(x) = (d)) +#define writel(d,x) (*(volatile int *)(x) = (d)) /* * IO bus memory addresses are also 1:1 with the physical address |