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portio: Allow to mark portio lists as coalesced MMIO flushing

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This will enable us to remove all remaining explicit calls of
qemu_flush_coalesced_mmio_buffer in IO handlers.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Jan Kiszka 2013-07-02 20:22:37 +02:00 committed by Paolo Bonzini
parent 518420dfec
commit c76bc480e2
2 changed files with 11 additions and 0 deletions
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2
include/exec/ioport.h
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@ -64,11 +64,13 @@ typedef struct PortioList {
struct MemoryRegion **regions;
void *opaque;
const char *name;
bool flush_coalesced_mmio;
} PortioList;
void portio_list_init(PortioList *piolist, Object *owner,
const struct MemoryRegionPortio *callbacks,
void *opaque, const char *name);
void portio_list_set_flush_coalesced(PortioList *piolist);
void portio_list_destroy(PortioList *piolist);
void portio_list_add(PortioList *piolist,
struct MemoryRegion *address_space,

9
ioport.c
View File

@ -139,6 +139,12 @@ void portio_list_init(PortioList *piolist,
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)
@ -231,6 +237,9 @@ static void portio_list_add_1(PortioList *piolist,
*/
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;