Author: zbb
Date: Wed Jan 1 20:26:08 2014
New Revision: 260165
URL: http://svnweb.freebsd.org/changeset/base/260165
Log:
Use only mapped BIOs on ARM
Using unmapped BIOs causes failure inside bus_dmamap_sync, since
this function requires valid MVA address, which is not present
if mapping is not set up.
Submitted by: Wojciech Macek <w...@semihalf.com>
Obtained from: Semihalf
Modified:
head/sys/dev/ahci/ahci.c
Modified: head/sys/dev/ahci/ahci.c
==============================================================================
--- head/sys/dev/ahci/ahci.c Wed Jan 1 20:22:29 2014 (r260164)
+++ head/sys/dev/ahci/ahci.c Wed Jan 1 20:26:08 2014 (r260165)
@@ -3066,7 +3066,15 @@ ahciaction(struct cam_sim *sim, union cc
if (ch->caps & AHCI_CAP_SPM)
cpi->hba_inquiry |= PI_SATAPM;
cpi->target_sprt = 0;
+#ifdef __arm__
+ /*
+ * Do not use unmapped buffers on ARM. Doing so will cause
+ * failure inside bus_dmamap_sync due to lack of VA.
+ */
+ cpi->hba_misc = PIM_SEQSCAN;
+#else
cpi->hba_misc = PIM_SEQSCAN | PIM_UNMAPPED;
+#endif
cpi->hba_eng_cnt = 0;
if (ch->caps & AHCI_CAP_SPM)
cpi->max_target = 15;
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