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dma: Let dma_memory_read/write() take MemTxAttrs argument

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Let devices specify transaction attributes when calling
dma_memory_read() or dma_memory_write().

Patch created mechanically using spatch with this script:

  @@
  expression E1, E2, E3, E4;
  @@
  (
  - dma_memory_read(E1, E2, E3, E4)
  + dma_memory_read(E1, E2, E3, E4, MEMTXATTRS_UNSPECIFIED)
  |
  - dma_memory_write(E1, E2, E3, E4)
  + dma_memory_write(E1, E2, E3, E4, MEMTXATTRS_UNSPECIFIED)
  )

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>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20211223115554.3155328-6-philmd@redhat.com>
This commit is contained in:
Philippe Mathieu-Daudé 2020-09-03 10:08:29 +02:00
parent 23faf5694f
commit ba06fe8add
30 changed files with 241 additions and 150 deletions
Download patch file Download diff file Expand all files Collapse all files

20
include/sysemu/dma.h
View file

@ -143,12 +143,14 @@ static inline MemTxResult dma_memory_rw(AddressSpace *as, dma_addr_t addr,
* @addr: address within that address space
* @buf: buffer with the data transferred
* @len: length of the data transferred
* @attrs: memory transaction attributes
*/
static inline MemTxResult dma_memory_read(AddressSpace *as, dma_addr_t addr,
void *buf, dma_addr_t len)
void *buf, dma_addr_t len,
MemTxAttrs attrs)
{
return dma_memory_rw(as, addr, buf, len,
DMA_DIRECTION_TO_DEVICE, MEMTXATTRS_UNSPECIFIED);
DMA_DIRECTION_TO_DEVICE, attrs);
}
/**
@ -162,12 +164,14 @@ static inline MemTxResult dma_memory_read(AddressSpace *as, dma_addr_t addr,
* @addr: address within that address space
* @buf: buffer with the data transferred
* @len: the number of bytes to write
* @attrs: memory transaction attributes
*/
static inline MemTxResult dma_memory_write(AddressSpace *as, dma_addr_t addr,
const void *buf, dma_addr_t len)
const void *buf, dma_addr_t len,
MemTxAttrs attrs)
{
return dma_memory_rw(as, addr, (void *)buf, len,
DMA_DIRECTION_FROM_DEVICE, MEMTXATTRS_UNSPECIFIED);
DMA_DIRECTION_FROM_DEVICE, attrs);
}
/**
@ -239,7 +243,7 @@ static inline void dma_memory_unmap(AddressSpace *as,
dma_addr_t addr) \
{ \
uint##_bits##_t val; \
dma_memory_read(as, addr, &val, (_bits) / 8); \
dma_memory_read(as, addr, &val, (_bits) / 8, MEMTXATTRS_UNSPECIFIED); \
return _end##_bits##_to_cpu(val); \
} \
static inline void st##_sname##_##_end##_dma(AddressSpace *as, \
@ -247,20 +251,20 @@ static inline void dma_memory_unmap(AddressSpace *as,
uint##_bits##_t val) \
{ \
val = cpu_to_##_end##_bits(val); \
dma_memory_write(as, addr, &val, (_bits) / 8); \
dma_memory_write(as, addr, &val, (_bits) / 8, MEMTXATTRS_UNSPECIFIED); \
}
static inline uint8_t ldub_dma(AddressSpace *as, dma_addr_t addr)
{
uint8_t val;
dma_memory_read(as, addr, &val, 1);
dma_memory_read(as, addr, &val, 1, MEMTXATTRS_UNSPECIFIED);
return val;
}
static inline void stb_dma(AddressSpace *as, dma_addr_t addr, uint8_t val)
{
dma_memory_write(as, addr, &val, 1);
dma_memory_write(as, addr, &val, 1, MEMTXATTRS_UNSPECIFIED);
}
DEFINE_LDST_DMA(uw, w, 16, le);