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authorPhilippe Mathieu-Daudé <f4bug@amsat.org>2020-08-28 10:02:45 +0100
committerPeter Maydell <peter.maydell@linaro.org>2020-08-28 10:02:45 +0100
commitb3aec952bf11ef54376db96dd673c6a34753b697 (patch)
tree9bde17966008abe3b1ae085cf62c955bdd2f2a01 /include/hw
parent9a4670be7f0734d27bf4058db3becf83cd0cc9d5 (diff)
hw/sd/allwinner-sdhost: Use AddressSpace for DMA transfers
Allow the device to execute the DMA transfers in a different AddressSpace. The A10 and H3 SoC keep using the system_memory address space, but via the proper dma_memory_access() API. Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Tested-by: Niek Linnenbank <nieklinnenbank@gmail.com> Reviewed-by: Niek Linnenbank <nieklinnenbank@gmail.com> Message-id: 20200814110057.307-1-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'include/hw')
-rw-r--r--include/hw/sd/allwinner-sdhost.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/hw/sd/allwinner-sdhost.h b/include/hw/sd/allwinner-sdhost.h
index d94606a853..839732ebf3 100644
--- a/include/hw/sd/allwinner-sdhost.h
+++ b/include/hw/sd/allwinner-sdhost.h
@@ -71,6 +71,12 @@ typedef struct AwSdHostState {
/** Interrupt output signal to notify CPU */
qemu_irq irq;
+ /** Memory region where DMA transfers are done */
+ MemoryRegion *dma_mr;
+
+ /** Address space used internally for DMA transfers */
+ AddressSpace dma_as;
+
/** Number of bytes left in current DMA transfer */
uint32_t transfer_cnt;