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dma: Let dma_memory_rw() take MemTxAttrs argument 

Let devices specify transaction attributes when calling
dma_memory_rw().

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: <20211223115554.3155328-5-philmd@redhat.com>
This commit is contained in:
Philippe Mathieu-Daudé 2020-09-03 09:37:43 +02:00
parent 4afd0f2f22
commit 23faf5694f
5 changed files with 18 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
hw/intc/spapr_xive.c
View File

@ -1684,7 +1684,8 @@ static target_ulong h_int_esb(PowerPCCPU *cpu,
mmio_addr = xive->vc_base + xive_source_esb_mgmt(xsrc, lisn) + offset;
if (dma_memory_rw(&address_space_memory, mmio_addr, &data, 8,
(flags & SPAPR_XIVE_ESB_STORE))) {
(flags & SPAPR_XIVE_ESB_STORE),
MEMTXATTRS_UNSPECIFIED)) {
qemu_log_mask(LOG_GUEST_ERROR, "XIVE: failed to access ESB @0x%"
HWADDR_PRIx "\n", mmio_addr);
return H_HARDWARE;

10
hw/usb/hcd-ohci.c
View File

@ -586,7 +586,8 @@ static int ohci_copy_td(OHCIState *ohci, struct ohci_td *td,
if (n > len)
n = len;
if (dma_memory_rw(ohci->as, ptr + ohci->localmem_base, buf, n, dir)) {
if (dma_memory_rw(ohci->as, ptr + ohci->localmem_base, buf,
n, dir, MEMTXATTRS_UNSPECIFIED)) {
return -1;
}
if (n == len) {
@ -595,7 +596,7 @@ static int ohci_copy_td(OHCIState *ohci, struct ohci_td *td,
ptr = td->be & ~0xfffu;
buf += n;
if (dma_memory_rw(ohci->as, ptr + ohci->localmem_base, buf,
len - n, dir)) {
len - n, dir, MEMTXATTRS_UNSPECIFIED)) {
return -1;
}
return 0;
@ -613,7 +614,8 @@ static int ohci_copy_iso_td(OHCIState *ohci,
if (n > len)
n = len;
if (dma_memory_rw(ohci->as, ptr + ohci->localmem_base, buf, n, dir)) {
if (dma_memory_rw(ohci->as, ptr + ohci->localmem_base, buf,
n, dir, MEMTXATTRS_UNSPECIFIED)) {
return -1;
}
if (n == len) {
@ -622,7 +624,7 @@ static int ohci_copy_iso_td(OHCIState *ohci,
ptr = end_addr & ~0xfffu;
buf += n;
if (dma_memory_rw(ohci->as, ptr + ohci->localmem_base, buf,
len - n, dir)) {
len - n, dir, MEMTXATTRS_UNSPECIFIED)) {
return -1;
}
return 0;

3
include/hw/pci/pci.h
View File

@ -808,7 +808,8 @@ static inline MemTxResult pci_dma_rw(PCIDevice *dev, dma_addr_t addr,
void *buf, dma_addr_t len,
DMADirection dir)
{
return dma_memory_rw(pci_get_address_space(dev), addr, buf, len, dir);
return dma_memory_rw(pci_get_address_space(dev), addr, buf, len,
dir, MEMTXATTRS_UNSPECIFIED);
}
/**

11
include/sysemu/dma.h
View File

@ -121,15 +121,15 @@ static inline MemTxResult dma_memory_write_relaxed(AddressSpace *as,
* @buf: buffer with the data transferred
* @len: the number of bytes to read or write
* @dir: indicates the transfer direction
* @attrs: memory transaction attributes
*/
static inline MemTxResult dma_memory_rw(AddressSpace *as, dma_addr_t addr,
void *buf, dma_addr_t len,
DMADirection dir)
DMADirection dir, MemTxAttrs attrs)
{
dma_barrier(as, dir);
return dma_memory_rw_relaxed(as, addr, buf, len, dir,
MEMTXATTRS_UNSPECIFIED);
return dma_memory_rw_relaxed(as, addr, buf, len, dir, attrs);
}
/**
@ -147,7 +147,8 @@ static inline MemTxResult dma_memory_rw(AddressSpace *as, dma_addr_t addr,
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);
return dma_memory_rw(as, addr, buf, len,
DMA_DIRECTION_TO_DEVICE, MEMTXATTRS_UNSPECIFIED);
}
/**
@ -166,7 +167,7 @@ static inline MemTxResult dma_memory_write(AddressSpace *as, dma_addr_t addr,
const void *buf, dma_addr_t len)
{
return dma_memory_rw(as, addr, (void *)buf, len,
DMA_DIRECTION_FROM_DEVICE);
DMA_DIRECTION_FROM_DEVICE, MEMTXATTRS_UNSPECIFIED);
}
/**

3
softmmu/dma-helpers.c
View File

@ -305,7 +305,8 @@ static uint64_t dma_buf_rw(uint8_t *ptr, int32_t len, QEMUSGList *sg,
while (len > 0) {
ScatterGatherEntry entry = sg->sg[sg_cur_index++];
int32_t xfer = MIN(len, entry.len);
dma_memory_rw(sg->as, entry.base, ptr, xfer, dir);
dma_memory_rw(sg->as, entry.base, ptr, xfer, dir,
MEMTXATTRS_UNSPECIFIED);
ptr += xfer;
len -= xfer;
resid -= xfer;