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usb-uhci: Use PCI DMA stub functions 

This updates the usb-uhci device emulation to use the explicit PCI DMA
wrapper to initialize its scatter/gathjer structure.  This means this
driver should not need further changes when the sglist interface is
extended to support IOMMUs.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
David Gibson 2011-10-31 17:06:58 +11:00 committed by Anthony Liguori
parent 68d553587c
commit fff23ee9a5
1 changed files with 11 additions and 11 deletions
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22
hw/usb-uhci.c
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@ -178,7 +178,7 @@ static UHCIAsync *uhci_async_alloc(UHCIState *s)
async->done = 0;
async->isoc = 0;
usb_packet_init(&async->packet);
qemu_sglist_init(&async->sgl, 1);
pci_dma_sglist_init(&async->sgl, &s->dev, 1);
return async;
}
@ -876,7 +876,7 @@ static void uhci_async_complete(USBPort *port, USBPacket *packet)
uint32_t link = async->td;
uint32_t int_mask = 0, val;
cpu_physical_memory_read(link & ~0xf, (uint8_t *) &td, sizeof(td));
pci_dma_read(&s->dev, link & ~0xf, (uint8_t *) &td, sizeof(td));
le32_to_cpus(&td.link);
le32_to_cpus(&td.ctrl);
le32_to_cpus(&td.token);
@ -888,8 +888,8 @@ static void uhci_async_complete(USBPort *port, USBPacket *packet)
/* update the status bits of the TD */
val = cpu_to_le32(td.ctrl);
cpu_physical_memory_write((link & ~0xf) + 4,
(const uint8_t *)&val, sizeof(val));
pci_dma_write(&s->dev, (link & ~0xf) + 4,
(const uint8_t *)&val, sizeof(val));
uhci_async_free(s, async);
} else {
async->done = 1;
@ -952,7 +952,7 @@ static void uhci_process_frame(UHCIState *s)
DPRINTF("uhci: processing frame %d addr 0x%x\n" , s->frnum, frame_addr);
cpu_physical_memory_read(frame_addr, (uint8_t *)&link, 4);
pci_dma_read(&s->dev, frame_addr, (uint8_t *)&link, 4);
le32_to_cpus(&link);
int_mask = 0;
@ -976,7 +976,7 @@ static void uhci_process_frame(UHCIState *s)
break;
}
cpu_physical_memory_read(link & ~0xf, (uint8_t *) &qh, sizeof(qh));
pci_dma_read(&s->dev, link & ~0xf, (uint8_t *) &qh, sizeof(qh));
le32_to_cpus(&qh.link);
le32_to_cpus(&qh.el_link);
@ -996,7 +996,7 @@ static void uhci_process_frame(UHCIState *s)
}
/* TD */
cpu_physical_memory_read(link & ~0xf, (uint8_t *) &td, sizeof(td));
pci_dma_read(&s->dev, link & ~0xf, (uint8_t *) &td, sizeof(td));
le32_to_cpus(&td.link);
le32_to_cpus(&td.ctrl);
le32_to_cpus(&td.token);
@ -1010,8 +1010,8 @@ static void uhci_process_frame(UHCIState *s)
if (old_td_ctrl != td.ctrl) {
/* update the status bits of the TD */
val = cpu_to_le32(td.ctrl);
cpu_physical_memory_write((link & ~0xf) + 4,
(const uint8_t *)&val, sizeof(val));
pci_dma_write(&s->dev, (link & ~0xf) + 4,
(const uint8_t *)&val, sizeof(val));
}
if (ret < 0) {
@ -1039,8 +1039,8 @@ static void uhci_process_frame(UHCIState *s)
/* update QH element link */
qh.el_link = link;
val = cpu_to_le32(qh.el_link);
cpu_physical_memory_write((curr_qh & ~0xf) + 4,
(const uint8_t *)&val, sizeof(val));
pci_dma_write(&s->dev, (curr_qh & ~0xf) + 4,
(const uint8_t *)&val, sizeof(val));
if (!depth_first(link)) {
/* done with this QH */