diff options
Diffstat (limited to 'cpu-all.h')
| -rw-r--r-- | cpu-all.h | 27 |
1 files changed, 20 insertions, 7 deletions
@@ -797,7 +797,7 @@ extern CPUState *cpu_single_env; void cpu_interrupt(CPUState *s, int mask); void cpu_reset_interrupt(CPUState *env, int mask); -int cpu_watchpoint_insert(CPUState *env, target_ulong addr); +int cpu_watchpoint_insert(CPUState *env, target_ulong addr, int type); int cpu_watchpoint_remove(CPUState *env, target_ulong addr); void cpu_watchpoint_remove_all(CPUState *env); int cpu_breakpoint_insert(CPUState *env, target_ulong pc); @@ -868,21 +868,34 @@ extern uint8_t *phys_ram_dirty; extern ram_addr_t ram_size; /* physical memory access */ -#define TLB_INVALID_MASK (1 << 3) -#define IO_MEM_SHIFT 4 + +/* MMIO pages are identified by a combination of an IO device index and + 3 flags. The ROMD code stores the page ram offset in iotlb entry, + so only a limited number of ids are avaiable. */ + +#define IO_MEM_SHIFT 3 #define IO_MEM_NB_ENTRIES (1 << (TARGET_PAGE_BITS - IO_MEM_SHIFT)) #define IO_MEM_RAM (0 << IO_MEM_SHIFT) /* hardcoded offset */ #define IO_MEM_ROM (1 << IO_MEM_SHIFT) /* hardcoded offset */ #define IO_MEM_UNASSIGNED (2 << IO_MEM_SHIFT) -#define IO_MEM_NOTDIRTY (4 << IO_MEM_SHIFT) /* used internally, never use directly */ -/* acts like a ROM when read and like a device when written. As an - exception, the write memory callback gets the ram offset instead of - the physical address */ +#define IO_MEM_NOTDIRTY (3 << IO_MEM_SHIFT) + +/* Acts like a ROM when read and like a device when written. */ #define IO_MEM_ROMD (1) #define IO_MEM_SUBPAGE (2) #define IO_MEM_SUBWIDTH (4) +/* Flags stored in the low bits of the TLB virtual address. These are + defined so that fast path ram access is all zeros. */ +/* Zero if TLB entry is valid. */ +#define TLB_INVALID_MASK (1 << 3) +/* Set if TLB entry references a clean RAM page. The iotlb entry will + contain the page physical address. */ +#define TLB_NOTDIRTY (1 << 4) +/* Set if TLB entry is an IO callback. */ +#define TLB_MMIO (1 << 5) + typedef void CPUWriteMemoryFunc(void *opaque, target_phys_addr_t addr, uint32_t value); typedef uint32_t CPUReadMemoryFunc(void *opaque, target_phys_addr_t addr); |