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dma: eliminate DMAContext

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The DMAContext is a simple pointer to an AddressSpace that is now always
already available.  Make everyone hold the address space directly,
and clean up the DMA API to use the AddressSpace directly.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2013-04-10 18:15:49 +02:00
parent 96478592a9
commit df32fd1c9f
23 changed files with 117 additions and 148 deletions
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22
hw/sd/sdhci.c
View file

@ -496,7 +496,7 @@ static void sdhci_sdma_transfer_multi_blocks(SDHCIState *s)
s->blkcnt--;
}
}
dma_memory_write(&dma_context_memory, s->sdmasysad,
dma_memory_write(&address_space_memory, 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(&dma_context_memory, s->sdmasysad,
dma_memory_read(&address_space_memory, s->sdmasysad,
&s->fifo_buffer[begin], s->data_count);
s->sdmasysad += s->data_count - begin;
if (s->data_count == block_size) {
@ -557,10 +557,10 @@ static void sdhci_sdma_transfer_single_block(SDHCIState *s)
for (n = 0; n < datacnt; n++) {
s->fifo_buffer[n] = sd_read_data(s->card);
}
dma_memory_write(&dma_context_memory, s->sdmasysad, s->fifo_buffer,
dma_memory_write(&address_space_memory, s->sdmasysad, s->fifo_buffer,
datacnt);
} else {
dma_memory_read(&dma_context_memory, s->sdmasysad, s->fifo_buffer,
dma_memory_read(&address_space_memory, s->sdmasysad, s->fifo_buffer,
datacnt);
for (n = 0; n < datacnt; n++) {
sd_write_data(s->card, s->fifo_buffer[n]);
@ -588,7 +588,7 @@ 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(&dma_context_memory, entry_addr, (uint8_t *)&adma2,
dma_memory_read(&address_space_memory, entry_addr, (uint8_t *)&adma2,
sizeof(adma2));
adma2 = le64_to_cpu(adma2);
/* The spec does not specify endianness of descriptor table.
@ -600,7 +600,7 @@ static void get_adma_description(SDHCIState *s, ADMADescr *dscr)
dscr->incr = 8;
break;
case SDHC_CTRL_ADMA1_32:
dma_memory_read(&dma_context_memory, entry_addr, (uint8_t *)&adma1,
dma_memory_read(&address_space_memory, entry_addr, (uint8_t *)&adma1,
sizeof(adma1));
adma1 = le32_to_cpu(adma1);
dscr->addr = (hwaddr)(adma1 & 0xFFFFF000);
@ -613,12 +613,12 @@ static void get_adma_description(SDHCIState *s, ADMADescr *dscr)
}
break;
case SDHC_CTRL_ADMA2_64:
dma_memory_read(&dma_context_memory, entry_addr,
dma_memory_read(&address_space_memory, entry_addr,
(uint8_t *)(&dscr->attr), 1);
dma_memory_read(&dma_context_memory, entry_addr + 2,
dma_memory_read(&address_space_memory, entry_addr + 2,
(uint8_t *)(&dscr->length), 2);
dscr->length = le16_to_cpu(dscr->length);
dma_memory_read(&dma_context_memory, entry_addr + 4,
dma_memory_read(&address_space_memory, entry_addr + 4,
(uint8_t *)(&dscr->addr), 8);
dscr->attr = le64_to_cpu(dscr->attr);
dscr->attr &= 0xfffffff8;
@ -678,7 +678,7 @@ static void sdhci_do_adma(SDHCIState *s)
s->data_count = block_size;
length -= block_size - begin;
}
dma_memory_write(&dma_context_memory, dscr.addr,
dma_memory_write(&address_space_memory, dscr.addr,
&s->fifo_buffer[begin],
s->data_count - begin);
dscr.addr += s->data_count - begin;
@ -702,7 +702,7 @@ static void sdhci_do_adma(SDHCIState *s)
s->data_count = block_size;
length -= block_size - begin;
}
dma_memory_read(&dma_context_memory, dscr.addr,
dma_memory_read(&address_space_memory, dscr.addr,
&s->fifo_buffer[begin], s->data_count);
dscr.addr += s->data_count - begin;
if (s->data_count == block_size) {