memory: Extract memory_region_msync() from memory_region_writeback()
Suggested-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Message-id: 20200508062456.23344-3-philmd@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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@ -1473,8 +1473,19 @@ void *memory_region_get_ram_ptr(MemoryRegion *mr);
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*/
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*/
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void memory_region_ram_resize(MemoryRegion *mr, ram_addr_t newsize,
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void memory_region_ram_resize(MemoryRegion *mr, ram_addr_t newsize,
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Error **errp);
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Error **errp);
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/**
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/**
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* memory_region_writeback: Trigger cache writeback or msync for
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* memory_region_msync: Synchronize selected address range of
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* a memory mapped region
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*
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* @mr: the memory region to be msync
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* @addr: the initial address of the range to be sync
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* @size: the size of the range to be sync
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*/
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void memory_region_msync(MemoryRegion *mr, hwaddr addr, hwaddr size);
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/**
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* memory_region_writeback: Trigger cache writeback for
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* selected address range
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* selected address range
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*
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*
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* @mr: the memory region to be updated
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* @mr: the memory region to be updated
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10
memory.c
10
memory.c
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@ -2197,6 +2197,12 @@ void memory_region_ram_resize(MemoryRegion *mr, ram_addr_t newsize, Error **errp
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qemu_ram_resize(mr->ram_block, newsize, errp);
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qemu_ram_resize(mr->ram_block, newsize, errp);
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}
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}
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void memory_region_msync(MemoryRegion *mr, hwaddr addr, hwaddr size)
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{
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if (mr->ram_block) {
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qemu_ram_writeback(mr->ram_block, addr, size);
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}
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}
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void memory_region_writeback(MemoryRegion *mr, hwaddr addr, hwaddr size)
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void memory_region_writeback(MemoryRegion *mr, hwaddr addr, hwaddr size)
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{
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{
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@ -2204,8 +2210,8 @@ void memory_region_writeback(MemoryRegion *mr, hwaddr addr, hwaddr size)
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* Might be extended case needed to cover
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* Might be extended case needed to cover
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* different types of memory regions
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* different types of memory regions
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*/
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*/
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if (mr->ram_block && mr->dirty_log_mask) {
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if (mr->dirty_log_mask) {
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qemu_ram_writeback(mr->ram_block, addr, size);
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memory_region_msync(mr, addr, size);
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}
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}
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}
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}
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