Author: jhb
Date: Fri Mar 16 16:12:10 2012
New Revision: 233036
URL: http://svn.freebsd.org/changeset/base/233036
Log:
Revert the PCIe 4GB boundary issue workaround now that the proper fix is
in HEAD.
Ok'd by: scottl
Modified:
head/sys/x86/x86/busdma_machdep.c
Modified: head/sys/x86/x86/busdma_machdep.c
==============================================================================
--- head/sys/x86/x86/busdma_machdep.c Fri Mar 16 15:46:44 2012
(r233035)
+++ head/sys/x86/x86/busdma_machdep.c Fri Mar 16 16:12:10 2012
(r233036)
@@ -227,14 +227,6 @@ bus_dma_tag_create(bus_dma_tag_t parent,
bus_dma_tag_t newtag;
int error = 0;
- /* Always enforce at least a 4GB (2GB for PAE) boundary. */
-#if defined(__amd64__)
- if (boundary == 0 || boundary > ((bus_addr_t)1 << 32))
- boundary = (bus_size_t)1 << 32;
-#elif defined(PAE)
- if (boundary == 0 || boundary > ((bus_addr_t)1 << 31))
- boundary = (bus_size_t)1 << 31;
-#endif
/* Basic sanity checking */
if (boundary != 0 && boundary < maxsegsz)
maxsegsz = boundary;
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