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Add DBGLVL_IO to trace all memory-mapped I/O.

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This commit is contained in:
Michael Brown
2008-02-21 12:39:00 +00:00
parent b87904ab20
commit 604c934981
2 changed files with 50 additions and 6 deletions
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45
src/arch/i386/include/io.h
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@@ -72,13 +72,46 @@ static inline void iounmap(void *virt_addr __unused)
* differently. On the x86 architecture, we just read/write the
* memory location directly.
*/
#define readb(addr) (*(volatile uint8_t *) (addr))
#define readw(addr) (*(volatile uint16_t *) (addr))
#define readl(addr) (*(volatile uint32_t *) (addr))
static inline __attribute__ (( always_inline )) unsigned long
_readb ( volatile uint8_t *addr ) {
unsigned long data = *addr;
DBGIO ( "[%08lx] => %02lx\n", virt_to_phys ( addr ), data );
return data;
}
static inline __attribute__ (( always_inline )) unsigned long
_readw ( volatile uint16_t *addr ) {
unsigned long data = *addr;
DBGIO ( "[%08lx] => %04lx\n", virt_to_phys ( addr ), data );
return data;
}
static inline __attribute__ (( always_inline )) unsigned long
_readl ( volatile uint32_t *addr ) {
unsigned long data = *addr;
DBGIO ( "[%08lx] => %08lx\n", virt_to_phys ( addr ), data );
return data;
}
#define readb( addr ) _readb ( ( volatile uint8_t * ) (addr) )
#define readw( addr ) _readw ( ( volatile uint16_t * ) (addr) )
#define readl( addr ) _readl ( ( volatile uint32_t * ) (addr) )
#define writeb(b,addr) ((*(volatile uint8_t *) (addr)) = (b))
#define writew(b,addr) ((*(volatile uint16_t *) (addr)) = (b))
#define writel(b,addr) ((*(volatile uint32_t *) (addr)) = (b))
static inline __attribute__ (( always_inline )) void
_writeb ( unsigned long data, volatile uint8_t *addr ) {
DBGIO ( "[%08lx] <= %02lx\n", virt_to_phys ( addr ), data );
*addr = data;
}
static inline __attribute__ (( always_inline )) void
_writew ( unsigned long data, volatile uint16_t *addr ) {
DBGIO ( "[%08lx] <= %04lx\n", virt_to_phys ( addr ), data );
*addr = data;
}
static inline __attribute__ (( always_inline )) void
_writel ( unsigned long data, volatile uint32_t *addr ) {
DBGIO ( "[%08lx] <= %08lx\n", virt_to_phys ( addr ), data );
*addr = data;
}
#define writeb( b, addr ) _writeb ( (b), ( volatile uint8_t * ) (addr) )
#define writew( b, addr ) _writew ( (b), ( volatile uint16_t * ) (addr) )
#define writel( b, addr ) _writel ( (b), ( volatile uint32_t * ) (addr) )
#define memcpy_fromio(a,b,c) memcpy((a),(void *)(b),(c))
#define memcpy_toio(a,b,c) memcpy((void *)(a),(b),(c))