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[Qemu-devel] [PATCH 1/3] portio: Allow to mark portio lists as coalesced
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH 1/3] portio: Allow to mark portio lists as coalesced MMIO flushing |
Date: |
Thu, 3 Oct 2013 15:41:01 +0200 |
From: Jan Kiszka <address@hidden>
This will enable us to remove all remaining explicit calls of
qemu_flush_coalesced_mmio_buffer in IO handlers.
Signed-off-by: Jan Kiszka <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
---
include/exec/ioport.h | 2 ++
ioport.c | 9 +++++++++
2 files changed, 11 insertions(+)
diff --git a/include/exec/ioport.h b/include/exec/ioport.h
index b3848be..3bd6722 100644
--- a/include/exec/ioport.h
+++ b/include/exec/ioport.h
@@ -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,
diff --git a/ioport.c b/ioport.c
index 707cce8..3d91e79 100644
--- a/ioport.c
+++ b/ioport.c
@@ -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;
--
1.8.3.1