svn commit: r291427 - head/sys/dev/ahci
Michal Meloun
mmel at FreeBSD.org
Sat Nov 28 14:30:43 UTC 2015
Author: mmel
Date: Sat Nov 28 14:30:42 2015
New Revision: 291427
URL: https://svnweb.freebsd.org/changeset/base/291427
Log:
AHCI: Use bus_dmamap_sync(9) when accessing DMA buffers.
Reviewed by: mav
Approved by: kib (mentor)
Differential Revision: https://reviews.freebsd.org/D4240
Modified:
head/sys/dev/ahci/ahci.c
Modified: head/sys/dev/ahci/ahci.c
==============================================================================
--- head/sys/dev/ahci/ahci.c Sat Nov 28 12:12:28 2015 (r291426)
+++ head/sys/dev/ahci/ahci.c Sat Nov 28 14:30:42 2015 (r291427)
@@ -1606,10 +1606,15 @@ ahci_execute_transaction(struct ahci_slo
if ((ch->quirks & AHCI_Q_NOBSYRES) == 0 &&
(ch->quirks & AHCI_Q_ATI_PMP_BUG) == 0 &&
softreset == 2 && et == AHCI_ERR_NONE) {
- while ((val = fis[2]) & ATA_S_BUSY) {
- DELAY(10);
- if (count++ >= timeout)
+ for ( ; count < timeout; count++) {
+ bus_dmamap_sync(ch->dma.rfis_tag,
+ ch->dma.rfis_map, BUS_DMASYNC_POSTREAD);
+ val = fis[2];
+ bus_dmamap_sync(ch->dma.rfis_tag,
+ ch->dma.rfis_map, BUS_DMASYNC_PREREAD);
+ if ((val & ATA_S_BUSY) == 0)
break;
+ DELAY(10);
}
}
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