qemu/include/exec/memory-internal.h
Richard Henderson 707526ad86 cputlb: Merge and move memory_notdirty_write_{prepare,complete}
Since 9458a9a1df, all readers of the dirty bitmaps wait
for the rcu lock, which means that they wait until the end
of any executing TranslationBlock.

As a consequence, there is no need for the actual access
to happen in between the _prepare and _complete.  Therefore,
we can improve things by merging the two functions into
notdirty_write and dropping the NotDirtyInfo structure.

In addition, the only users of notdirty_write are in cputlb.c,
so move the merged function there.  Pass in the CPUIOTLBEntry
from which the ram_addr_t may be computed.

Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2019-09-25 10:44:29 -07:00

54 lines
1.6 KiB
C

/*
* Declarations for functions which are internal to the memory subsystem.
*
* Copyright 2011 Red Hat, Inc. and/or its affiliates
*
* Authors:
* Avi Kivity <avi@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or
* later. See the COPYING file in the top-level directory.
*
*/
/*
* This header is for use by exec.c, memory.c and accel/tcg/cputlb.c ONLY,
* for declarations which are shared between the memory subsystem's
* internals and the TCG TLB code. Do not include it from elsewhere.
*/
#ifndef MEMORY_INTERNAL_H
#define MEMORY_INTERNAL_H
#include "cpu.h"
#ifndef CONFIG_USER_ONLY
static inline AddressSpaceDispatch *flatview_to_dispatch(FlatView *fv)
{
return fv->dispatch;
}
static inline AddressSpaceDispatch *address_space_to_dispatch(AddressSpace *as)
{
return flatview_to_dispatch(address_space_to_flatview(as));
}
FlatView *address_space_get_flatview(AddressSpace *as);
void flatview_unref(FlatView *view);
extern const MemoryRegionOps unassigned_mem_ops;
bool memory_region_access_valid(MemoryRegion *mr, hwaddr addr,
unsigned size, bool is_write,
MemTxAttrs attrs);
void flatview_add_to_dispatch(FlatView *fv, MemoryRegionSection *section);
AddressSpaceDispatch *address_space_dispatch_new(FlatView *fv);
void address_space_dispatch_compact(AddressSpaceDispatch *d);
void address_space_dispatch_free(AddressSpaceDispatch *d);
void mtree_print_dispatch(struct AddressSpaceDispatch *d,
MemoryRegion *root);
#endif
#endif