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authorPaolo Bonzini <pbonzini@redhat.com>2018-06-06 15:09:51 -0400
committerJohn Snow <jsnow@redhat.com>2018-06-08 13:36:25 -0400
commitbed9bcfa3275a9cfee82846a9f521c4858a9739a (patch)
tree2a240e83cbbbf0438045e526abee224d0c9a1d9e /hw/ide/ahci.c
parent956556e131e35f387ac482ad7b41151576fef057 (diff)
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ide: push end_transfer_func out of start_transfer callback, rename callback
Now that end_transfer_func is a tail call in ahci_start_transfer, formalize the fact that the callback (of which ahci_start_transfer is the sole implementation) takes care of the transfer too: rename it to pio_transfer and, if it is present, call the end_transfer_func as soon as it returns. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-id: 20180606190955.20845-4-jsnow@redhat.com Signed-off-by: John Snow <jsnow@redhat.com>
Diffstat (limited to 'hw/ide/ahci.c')
-rw-r--r--hw/ide/ahci.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/hw/ide/ahci.c b/hw/ide/ahci.c
index f25bef5..f7852be 100644
--- a/hw/ide/ahci.c
+++ b/hw/ide/ahci.c
@@ -1340,8 +1340,8 @@ out:
return 0;
}
-/* DMA dev <-> ram */
-static void ahci_start_transfer(IDEDMA *dma)
+/* Transfer PIO data between RAM and device */
+static void ahci_pio_transfer(IDEDMA *dma)
{
AHCIDevice *ad = DO_UPCAST(AHCIDevice, dma, dma);
IDEState *s = &ad->port.ifs[0];
@@ -1365,9 +1365,9 @@ static void ahci_start_transfer(IDEDMA *dma)
has_sglist = 1;
}
- trace_ahci_start_transfer(ad->hba, ad->port_no, is_write ? "writ" : "read",
- size, is_atapi ? "atapi" : "ata",
- has_sglist ? "" : "o");
+ trace_ahci_pio_transfer(ad->hba, ad->port_no, is_write ? "writ" : "read",
+ size, is_atapi ? "atapi" : "ata",
+ has_sglist ? "" : "o");
if (has_sglist && size) {
if (is_write) {
@@ -1382,7 +1382,6 @@ static void ahci_start_transfer(IDEDMA *dma)
out:
/* declare that we processed everything */
s->data_ptr = s->data_end;
- s->end_transfer_func(s);
}
static void ahci_start_dma(IDEDMA *dma, IDEState *s,
@@ -1503,7 +1502,7 @@ static const IDEDMAOps ahci_dma_ops = {
.start_dma = ahci_start_dma,
.restart = ahci_restart,
.restart_dma = ahci_restart_dma,
- .start_transfer = ahci_start_transfer,
+ .pio_transfer = ahci_pio_transfer,
.prepare_buf = ahci_dma_prepare_buf,
.commit_buf = ahci_commit_buf,
.rw_buf = ahci_dma_rw_buf,