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66 lines
2.1 KiB
66 lines
2.1 KiB
#include "base/Stream.h"
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#include "host-common/GoldfishDma.h"
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#include "host-common/DmaMap.h"
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#include "host-common/address_space_device.h"
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#include "host-common/android_pipe_host.h"
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static void android_goldfish_dma_add_buffer(void* pipe, uint64_t guest_paddr, uint64_t sz) {
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android::DmaMap::get()->addBuffer(pipe, guest_paddr, sz);
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}
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static void android_goldfish_dma_remove_buffer(uint64_t guest_paddr) {
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android::DmaMap::get()->removeBuffer(guest_paddr);
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}
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static void* android_goldfish_dma_get_host_addr(uint64_t guest_paddr) {
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void *host_ptr;
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host_ptr = get_address_space_device_control_ops()->get_host_ptr(guest_paddr);
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if (host_ptr) {
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return host_ptr;
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}
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return android::DmaMap::get()->getHostAddr(guest_paddr);
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}
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static void android_goldfish_dma_invalidate_host_mappings() {
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android::DmaMap::get()->invalidateHostMappings();
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}
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static void android_goldfish_dma_unlock(uint64_t guest_paddr) {
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void* hwpipe = android::DmaMap::get()->getPipeInstance(guest_paddr);
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if (hwpipe) {
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/*
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* DMA regions allocated with AddressSpaceHostMemoryAllocatorContext
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* don't have hwpipe associated with them.
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*/
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android_pipe_host_signal_wake(hwpipe, PIPE_WAKE_UNLOCK_DMA);
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}
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}
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static void android_goldfish_dma_reset_host_mappings() {
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android::DmaMap::get()->resetHostMappings();
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}
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static void android_goldfish_dma_save_mappings(android::base::Stream* stream) {
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android::DmaMap::get()->save(stream);
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}
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static void android_goldfish_dma_load_mappings(android::base::Stream* stream) {
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android::DmaMap::get()->load(stream);
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}
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const GoldfishDmaOps android_goldfish_dma_ops = {
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.add_buffer = android_goldfish_dma_add_buffer,
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.remove_buffer = android_goldfish_dma_remove_buffer,
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.get_host_addr = android_goldfish_dma_get_host_addr,
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.invalidate_host_mappings = android_goldfish_dma_invalidate_host_mappings,
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.unlock = android_goldfish_dma_unlock,
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.reset_host_mappings = android_goldfish_dma_reset_host_mappings,
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.save_mappings = android_goldfish_dma_save_mappings,
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.load_mappings = android_goldfish_dma_load_mappings,
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};
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