dma: Let dma_memory_read() propagate MemTxResult
dma_memory_rw_relaxed() returns a MemTxResult type. Do not discard it, return it to the caller. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Li Qiang <liq3ea@gmail.com> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20201023151923.3243652-7-philmd@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
parent
9989bcd337
commit
b1f51303af
@ -89,7 +89,8 @@ static inline MemTxResult dma_memory_rw_relaxed(AddressSpace *as,
|
||||
buf, len, dir == DMA_DIRECTION_FROM_DEVICE);
|
||||
}
|
||||
|
||||
static inline int dma_memory_read_relaxed(AddressSpace *as, dma_addr_t addr,
|
||||
static inline MemTxResult dma_memory_read_relaxed(AddressSpace *as,
|
||||
dma_addr_t addr,
|
||||
void *buf, dma_addr_t len)
|
||||
{
|
||||
return dma_memory_rw_relaxed(as, addr, buf, len, DMA_DIRECTION_TO_DEVICE);
|
||||
@ -124,7 +125,19 @@ static inline MemTxResult dma_memory_rw(AddressSpace *as, dma_addr_t addr,
|
||||
return dma_memory_rw_relaxed(as, addr, buf, len, dir);
|
||||
}
|
||||
|
||||
static inline int dma_memory_read(AddressSpace *as, dma_addr_t addr,
|
||||
/**
|
||||
* dma_memory_read: Read from an address space from DMA controller.
|
||||
*
|
||||
* Return a MemTxResult indicating whether the operation succeeded
|
||||
* or failed (eg unassigned memory, device rejected the transaction,
|
||||
* IOMMU fault). Called within RCU critical section.
|
||||
*
|
||||
* @as: #AddressSpace to be accessed
|
||||
* @addr: address within that address space
|
||||
* @buf: buffer with the data transferred
|
||||
* @len: length of the data transferred
|
||||
*/
|
||||
static inline MemTxResult dma_memory_read(AddressSpace *as, dma_addr_t addr,
|
||||
void *buf, dma_addr_t len)
|
||||
{
|
||||
return dma_memory_rw(as, addr, buf, len, DMA_DIRECTION_TO_DEVICE);
|
||||
|
Loading…
Reference in New Issue
Block a user