freebsd-dev/sys/x86
Jason A. Harmening 7b59f7bc5c Use pmap_quick_enter_page() to handle bouncing of unmapped buffers in the x86 busdma_bounce implementation. Also treat user buffers as unmapped.
This allows two things:
1. Sync'ing bounced maps in non-sleepable contexts.  The physcopy* calls previously used could sleep on sf_buf operations in some cases.
2. Sync'ing user buffers outside the context of the owning process

Approved by:	kib (mentor)
2015-08-14 20:08:16 +00:00
..
acpica Merge ACPICA 20150619. 2015-06-18 23:14:45 +00:00
bios
cpufreq
include Better support memory mapped console devices, such as VGA and EFI 2015-08-12 15:26:32 +00:00
iommu Comment only change, fix grammar and somewhat clarify the action. 2015-08-14 13:51:59 +00:00
isa Set the initial system time to a sane (as in: not end of 21st century) value when 2015-06-29 17:02:09 +00:00
pci Reassign copyright statements on several files from Advanced 2015-04-23 14:22:20 +00:00
x86 Use pmap_quick_enter_page() to handle bouncing of unmapped buffers in the x86 busdma_bounce implementation. Also treat user buffers as unmapped. 2015-08-14 20:08:16 +00:00
xen Make kstack_pages a tunable on arm, x86, and powepc. On i386, the 2015-08-10 17:18:21 +00:00