#include "exec/memory.h"
#include "exec/address-spaces.h"
-/***********************************************************/
-/* IO Port */
-
-//#define DEBUG_UNUSED_IOPORT
//#define DEBUG_IOPORT
-#ifdef DEBUG_UNUSED_IOPORT
-# define LOG_UNUSED_IOPORT(fmt, ...) fprintf(stderr, fmt, ## __VA_ARGS__)
-#else
-# define LOG_UNUSED_IOPORT(fmt, ...) do{ } while (0)
-#endif
-
#ifdef DEBUG_IOPORT
# define LOG_IOPORT(...) qemu_log_mask(CPU_LOG_IOPORT, ## __VA_ARGS__)
#else
MemoryRegionPortio ports[];
} MemoryRegionPortioList;
-/* XXX: use a two level table to limit memory usage */
-
-static void *ioport_opaque[MAX_IOPORTS];
-static IOPortReadFunc *ioport_read_table[3][MAX_IOPORTS];
-static IOPortWriteFunc *ioport_write_table[3][MAX_IOPORTS];
-static IOPortDestructor *ioport_destructor_table[MAX_IOPORTS];
-
-static IOPortReadFunc default_ioport_readb, default_ioport_readw, default_ioport_readl;
-static IOPortWriteFunc default_ioport_writeb, default_ioport_writew, default_ioport_writel;
-
-static uint32_t ioport_read(int index, uint32_t address)
-{
- static IOPortReadFunc * const default_func[3] = {
- default_ioport_readb,
- default_ioport_readw,
- default_ioport_readl
- };
- IOPortReadFunc *func = ioport_read_table[index][address];
- if (!func)
- func = default_func[index];
- return func(ioport_opaque[address], address);
-}
-
-static void ioport_write(int index, uint32_t address, uint32_t data)
-{
- static IOPortWriteFunc * const default_func[3] = {
- default_ioport_writeb,
- default_ioport_writew,
- default_ioport_writel
- };
- IOPortWriteFunc *func = ioport_write_table[index][address];
- if (!func)
- func = default_func[index];
- func(ioport_opaque[address], address, data);
-}
-
-static uint32_t default_ioport_readb(void *opaque, uint32_t address)
-{
- LOG_UNUSED_IOPORT("unused inb: port=0x%04"PRIx32"\n", address);
- return 0xff;
-}
-
-static void default_ioport_writeb(void *opaque, uint32_t address, uint32_t data)
-{
- LOG_UNUSED_IOPORT("unused outb: port=0x%04"PRIx32" data=0x%02"PRIx32"\n",
- address, data);
-}
-
-/* default is to make two byte accesses */
-static uint32_t default_ioport_readw(void *opaque, uint32_t address)
-{
- uint32_t data;
- data = ioport_read(0, address);
- address = (address + 1) & IOPORTS_MASK;
- data |= ioport_read(0, address) << 8;
- return data;
-}
-
-static void default_ioport_writew(void *opaque, uint32_t address, uint32_t data)
-{
- ioport_write(0, address, data & 0xff);
- address = (address + 1) & IOPORTS_MASK;
- ioport_write(0, address, (data >> 8) & 0xff);
-}
-
-static uint32_t default_ioport_readl(void *opaque, uint32_t address)
-{
- LOG_UNUSED_IOPORT("unused inl: port=0x%04"PRIx32"\n", address);
- return 0xffffffff;
-}
-
-static void default_ioport_writel(void *opaque, uint32_t address, uint32_t data)
-{
- LOG_UNUSED_IOPORT("unused outl: port=0x%04"PRIx32" data=0x%02"PRIx32"\n",
- address, data);
-}
-
-static int ioport_bsize(int size, int *bsize)
-{
- if (size == 1) {
- *bsize = 0;
- } else if (size == 2) {
- *bsize = 1;
- } else if (size == 4) {
- *bsize = 2;
- } else {
- return -1;
- }
- return 0;
-}
-
-/* size is the word size in byte */
-static int register_ioport_read(pio_addr_t start, int length, int size,
- IOPortReadFunc *func, void *opaque)
-{
- int i, bsize;
-
- if (ioport_bsize(size, &bsize)) {
- hw_error("register_ioport_read: invalid size");
- return -1;
- }
- for(i = start; i < start + length; ++i) {
- ioport_read_table[bsize][i] = func;
- if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
- hw_error("register_ioport_read: invalid opaque for address 0x%x",
- i);
- ioport_opaque[i] = opaque;
- }
- return 0;
-}
-
-/* size is the word size in byte */
-static int register_ioport_write(pio_addr_t start, int length, int size,
- IOPortWriteFunc *func, void *opaque)
-{
- int i, bsize;
-
- if (ioport_bsize(size, &bsize)) {
- hw_error("register_ioport_write: invalid size");
- return -1;
- }
- for(i = start; i < start + length; ++i) {
- ioport_write_table[bsize][i] = func;
- if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
- hw_error("register_ioport_write: invalid opaque for address 0x%x",
- i);
- ioport_opaque[i] = opaque;
- }
- return 0;
-}
-
-static uint32_t ioport_readb_thunk(void *opaque, uint32_t addr)
-{
- IORange *ioport = opaque;
- uint64_t data;
-
- ioport->ops->read(ioport, addr - ioport->base, 1, &data);
- return data;
-}
-
-static uint32_t ioport_readw_thunk(void *opaque, uint32_t addr)
-{
- IORange *ioport = opaque;
- uint64_t data;
-
- ioport->ops->read(ioport, addr - ioport->base, 2, &data);
- return data;
-}
-
-static uint32_t ioport_readl_thunk(void *opaque, uint32_t addr)
-{
- IORange *ioport = opaque;
- uint64_t data;
-
- ioport->ops->read(ioport, addr - ioport->base, 4, &data);
- return data;
-}
-
-static void ioport_writeb_thunk(void *opaque, uint32_t addr, uint32_t data)
+static uint64_t unassigned_io_read(void *opaque, hwaddr addr, unsigned size)
{
- IORange *ioport = opaque;
-
- ioport->ops->write(ioport, addr - ioport->base, 1, data);
+ return -1ULL;
}
-static void ioport_writew_thunk(void *opaque, uint32_t addr, uint32_t data)
+static void unassigned_io_write(void *opaque, hwaddr addr, uint64_t val,
+ unsigned size)
{
- IORange *ioport = opaque;
-
- ioport->ops->write(ioport, addr - ioport->base, 2, data);
}
-static void ioport_writel_thunk(void *opaque, uint32_t addr, uint32_t data)
-{
- IORange *ioport = opaque;
-
- ioport->ops->write(ioport, addr - ioport->base, 4, data);
-}
-
-static void iorange_destructor_thunk(void *opaque)
-{
- IORange *iorange = opaque;
-
- if (iorange->ops->destructor) {
- iorange->ops->destructor(iorange);
- }
-}
-
-void ioport_register(IORange *ioport)
-{
- register_ioport_read(ioport->base, ioport->len, 1,
- ioport_readb_thunk, ioport);
- register_ioport_read(ioport->base, ioport->len, 2,
- ioport_readw_thunk, ioport);
- register_ioport_read(ioport->base, ioport->len, 4,
- ioport_readl_thunk, ioport);
- register_ioport_write(ioport->base, ioport->len, 1,
- ioport_writeb_thunk, ioport);
- register_ioport_write(ioport->base, ioport->len, 2,
- ioport_writew_thunk, ioport);
- register_ioport_write(ioport->base, ioport->len, 4,
- ioport_writel_thunk, ioport);
- ioport_destructor_table[ioport->base] = iorange_destructor_thunk;
-}
-
-void isa_unassign_ioport(pio_addr_t start, int length)
-{
- int i;
-
- if (ioport_destructor_table[start]) {
- ioport_destructor_table[start](ioport_opaque[start]);
- ioport_destructor_table[start] = NULL;
- }
- for(i = start; i < start + length; i++) {
- ioport_read_table[0][i] = NULL;
- ioport_read_table[1][i] = NULL;
- ioport_read_table[2][i] = NULL;
-
- ioport_write_table[0][i] = NULL;
- ioport_write_table[1][i] = NULL;
- ioport_write_table[2][i] = NULL;
-
- ioport_opaque[i] = NULL;
- }
-}
-
-/***********************************************************/
+const MemoryRegionOps unassigned_io_ops = {
+ .read = unassigned_io_read,
+ .write = unassigned_io_write,
+ .endianness = DEVICE_NATIVE_ENDIAN,
+};
void cpu_outb(pio_addr_t addr, uint8_t val)
{
}
void portio_list_init(PortioList *piolist,
+ Object *owner,
const MemoryRegionPortio *callbacks,
void *opaque, const char *name)
{
piolist->regions = g_new0(MemoryRegion *, n);
piolist->address_space = NULL;
piolist->opaque = opaque;
+ piolist->owner = owner;
piolist->name = name;
+ piolist->flush_coalesced_mmio = false;
+}
+
+void portio_list_set_flush_coalesced(PortioList *piolist)
+{
+ piolist->flush_coalesced_mmio = true;
}
void portio_list_destroy(PortioList *piolist)
* Use an alias so that the callback is called with an absolute address,
* rather than an offset relative to to start + off_low.
*/
- memory_region_init_io(&mrpio->mr, &portio_ops, mrpio, piolist->name,
- off_high - off_low);
+ memory_region_init_io(&mrpio->mr, piolist->owner, &portio_ops, mrpio,
+ piolist->name, off_high - off_low);
+ if (piolist->flush_coalesced_mmio) {
+ memory_region_set_flush_coalesced(&mrpio->mr);
+ }
memory_region_add_subregion(piolist->address_space,
start + off_low, &mrpio->mr);
piolist->regions[piolist->nr] = &mrpio->mr;
projects / qemu.git / blobdiff