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sdhci: fix the PCI device, using the PCI address space for DMA

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While SysBus devices can use the get_system_memory() address space,
PCI devices should use the bus master address space for DMA.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20180115182436.2066-14-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Philippe Mathieu-Daudé 2018-01-16 13:28:21 +00:00 committed by Peter Maydell
parent 5d2c0464fa
commit dd55c485ec
2 changed files with 16 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
hw/sd/sdhci.c
View File

@ -496,7 +496,7 @@ static void sdhci_sdma_transfer_multi_blocks(SDHCIState *s)
s->blkcnt--;
}
}
dma_memory_write(&address_space_memory, s->sdmasysad,
dma_memory_write(s->dma_as, s->sdmasysad,
&s->fifo_buffer[begin], s->data_count - begin);
s->sdmasysad += s->data_count - begin;
if (s->data_count == block_size) {
@ -518,7 +518,7 @@ static void sdhci_sdma_transfer_multi_blocks(SDHCIState *s)
s->data_count = block_size;
boundary_count -= block_size - begin;
}
dma_memory_read(&address_space_memory, s->sdmasysad,
dma_memory_read(s->dma_as, s->sdmasysad,
&s->fifo_buffer[begin], s->data_count - begin);
s->sdmasysad += s->data_count - begin;
if (s->data_count == block_size) {
@ -556,11 +556,9 @@ static void sdhci_sdma_transfer_single_block(SDHCIState *s)
for (n = 0; n < datacnt; n++) {
s->fifo_buffer[n] = sdbus_read_data(&s->sdbus);
}
dma_memory_write(&address_space_memory, s->sdmasysad, s->fifo_buffer,
datacnt);
dma_memory_write(s->dma_as, s->sdmasysad, s->fifo_buffer, datacnt);
} else {
dma_memory_read(&address_space_memory, s->sdmasysad, s->fifo_buffer,
datacnt);
dma_memory_read(s->dma_as, s->sdmasysad, s->fifo_buffer, datacnt);
for (n = 0; n < datacnt; n++) {
sdbus_write_data(&s->sdbus, s->fifo_buffer[n]);
}
@ -584,7 +582,7 @@ static void get_adma_description(SDHCIState *s, ADMADescr *dscr)
hwaddr entry_addr = (hwaddr)s->admasysaddr;
switch (SDHC_DMA_TYPE(s->hostctl)) {
case SDHC_CTRL_ADMA2_32:
dma_memory_read(&address_space_memory, entry_addr, (uint8_t *)&adma2,
dma_memory_read(s->dma_as, entry_addr, (uint8_t *)&adma2,
sizeof(adma2));
adma2 = le64_to_cpu(adma2);
/* The spec does not specify endianness of descriptor table.
@ -596,7 +594,7 @@ static void get_adma_description(SDHCIState *s, ADMADescr *dscr)
dscr->incr = 8;
break;
case SDHC_CTRL_ADMA1_32:
dma_memory_read(&address_space_memory, entry_addr, (uint8_t *)&adma1,
dma_memory_read(s->dma_as, entry_addr, (uint8_t *)&adma1,
sizeof(adma1));
adma1 = le32_to_cpu(adma1);
dscr->addr = (hwaddr)(adma1 & 0xFFFFF000);
@ -609,12 +607,12 @@ static void get_adma_description(SDHCIState *s, ADMADescr *dscr)
}
break;
case SDHC_CTRL_ADMA2_64:
dma_memory_read(&address_space_memory, entry_addr,
dma_memory_read(s->dma_as, entry_addr,
(uint8_t *)(&dscr->attr), 1);
dma_memory_read(&address_space_memory, entry_addr + 2,
dma_memory_read(s->dma_as, entry_addr + 2,
(uint8_t *)(&dscr->length), 2);
dscr->length = le16_to_cpu(dscr->length);
dma_memory_read(&address_space_memory, entry_addr + 4,
dma_memory_read(s->dma_as, entry_addr + 4,
(uint8_t *)(&dscr->addr), 8);
dscr->attr = le64_to_cpu(dscr->attr);
dscr->attr &= 0xfffffff8;
@ -673,7 +671,7 @@ static void sdhci_do_adma(SDHCIState *s)
s->data_count = block_size;
length -= block_size - begin;
}
dma_memory_write(&address_space_memory, dscr.addr,
dma_memory_write(s->dma_as, dscr.addr,
&s->fifo_buffer[begin],
s->data_count - begin);
dscr.addr += s->data_count - begin;
@ -697,7 +695,7 @@ static void sdhci_do_adma(SDHCIState *s)
s->data_count = block_size;
length -= block_size - begin;
}
dma_memory_read(&address_space_memory, dscr.addr,
dma_memory_read(s->dma_as, dscr.addr,
&s->fifo_buffer[begin],
s->data_count - begin);
dscr.addr += s->data_count - begin;
@ -1312,7 +1310,8 @@ static void sdhci_pci_realize(PCIDevice *dev, Error **errp)
dev->config[PCI_CLASS_PROG] = 0x01; /* Standard Host supported DMA */
dev->config[PCI_INTERRUPT_PIN] = 0x01; /* interrupt pin A */
s->irq = pci_allocate_irq(dev);
pci_register_bar(dev, 0, 0, &s->iomem);
s->dma_as = pci_get_address_space(dev);
pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->iomem);
}
static void sdhci_pci_exit(PCIDevice *dev)
@ -1381,6 +1380,8 @@ static void sdhci_sysbus_realize(DeviceState *dev, Error ** errp)
return;
}
s->dma_as = &address_space_memory;
sysbus_init_irq(sbd, &s->irq);
sysbus_init_mmio(sbd, &s->iomem);
}

1
include/hw/sd/sdhci.h
View File

@ -41,6 +41,7 @@ typedef struct SDHCIState {
/*< public >*/
SDBus sdbus;
MemoryRegion iomem;
AddressSpace *dma_as;
QEMUTimer *insert_timer; /* timer for 'changing' sd card. */
QEMUTimer *transfer_timer;