Author: zbb
Date: Thu Jan 2 11:24:04 2014
New Revision: 260189
URL: http://svnweb.freebsd.org/changeset/base/260189
Log:
Revert r260165: Proper configuration of unmapped_buf_allowed should be used
To avoid failures in bus_dmamap_sync() on ARM unmapped_buf_allowed should
be set to 0. Hence, ARM-specific changes in AHCI should not be applied.
Modified:
head/sys/dev/ahci/ahci.c
Modified: head/sys/dev/ahci/ahci.c
==============================================================================
--- head/sys/dev/ahci/ahci.c Thu Jan 2 10:18:39 2014 (r260188)
+++ head/sys/dev/ahci/ahci.c Thu Jan 2 11:24:04 2014 (r260189)
@@ -3066,15 +3066,7 @@ 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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