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[Qemu-devel] [PULL 03/17] portio: Allow to mark portio lists as coalesce
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PULL 03/17] portio: Allow to mark portio lists as coalesced MMIO flushing |
Date: |
Thu, 17 Oct 2013 17:48:41 +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
- [Qemu-devel] [PULL 00/17] Memory/threading changes for 1.7, Paolo Bonzini, 2013/10/17
- [Qemu-devel] [PULL 01/17] memory: fix 128 arithmetic in info mtree, Paolo Bonzini, 2013/10/17
- [Qemu-devel] [PULL 02/17] compatfd: switch to QemuThread, Paolo Bonzini, 2013/10/17
- [Qemu-devel] [PULL 04/17] cirrus: Mark vga io region as coalesced MMIO flushing, Paolo Bonzini, 2013/10/17
- [Qemu-devel] [PULL 05/17] vga: Mark relevant portio lists regions as coalesced MMIO flushing, Paolo Bonzini, 2013/10/17
- [Qemu-devel] [PULL 03/17] portio: Allow to mark portio lists as coalesced MMIO flushing,
Paolo Bonzini <=
- [Qemu-devel] [PULL 10/17] timer: extract timer_mod_ns_locked and timerlist_rearm, Paolo Bonzini, 2013/10/17
- [Qemu-devel] [PULL 11/17] timer: add timer_mod_anticipate and timer_mod_anticipate_ns, Paolo Bonzini, 2013/10/17
- [Qemu-devel] [PULL 07/17] timer: protect timers_state's clock with seqlock, Paolo Bonzini, 2013/10/17
- [Qemu-devel] [PULL 06/17] seqlock: introduce read-write seqlock, Paolo Bonzini, 2013/10/17
- [Qemu-devel] [PULL 08/17] qemu-thread: add QemuEvent, Paolo Bonzini, 2013/10/17
- [Qemu-devel] [PULL 12/17] icount: use cpu_get_icount() directly, Paolo Bonzini, 2013/10/17
- [Qemu-devel] [PULL 09/17] timer: make qemu_clock_enable sync between disable and timer's cb, Paolo Bonzini, 2013/10/17
- [Qemu-devel] [PULL 15/17] icount: document (future) locking rules for icount, Paolo Bonzini, 2013/10/17
- [Qemu-devel] [PULL 13/17] icount: reorganize icount_warp_rt, Paolo Bonzini, 2013/10/17
- [Qemu-devel] [PULL 14/17] icount: prepare the code for future races in calling qemu_clock_warp, Paolo Bonzini, 2013/10/17