John Baldwin 2db99100a4 Improve the handling of static DMA buffers that use non-default memory ... attributes (currently just BUS_DMA_NOCACHE): - Don't call pmap_change_attr() on the returned address, instead use kmem_alloc_contig() to ask the VM system for memory with the requested attribute. - As a result, always use kmem_alloc_contig() for non-default memory attributes, even for sub-page allocations. This requires adjusting bus_dmamem_free()'s logic for determining which free routine to use. - For x86, add a new dummy bus_dmamap that is used for static DMA buffers allocated via kmem_alloc_contig(). bus_dmamem_free() can then use the map pointer to determine which free routine to use. - For powerpc, add a new flag to the allocated map (bus_dmamem_alloc() always creates a real map on powerpc) to indicate which free routine should be used. Note that the BUS_DMA_NOCACHE handling in powerpc is currently #ifdef'd out. I have left it disabled but updated it to match x86. Reviewed by: scottl MFC after: 1 month		2012-08-03 13:50:29 +00:00
..
aim	Avoid recursion on the pvh global lock in the aim oea pmap.	2012-07-10 22:10:21 +00:00
booke	Avoid recursion on the pvh global lock in the aim oea pmap.	2012-07-10 22:10:21 +00:00
compile	Don't need the .keep_me files. Obrien and I committed past each other.	2001-07-01 23:35:44 +00:00
conf	Remove device uart_z8530 and options GEOM_PART_APM from DEFAULTS and instead	2012-07-02 21:25:24 +00:00
cpufreq	Remove unused variables. Spotted by a cppcheck	2011-01-06 20:19:01 +00:00
fpu	Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs.	2011-11-07 15:43:11 +00:00
include	Make the wchar_t type machine dependent.	2012-06-24 04:15:58 +00:00
mambo	kern cons: introduce infrastructure for console grabbing by kernel	2011-12-17 15:08:43 +00:00
mpc85xx	Support lbc interrupts:	2012-07-03 00:06:14 +00:00
ofw	Make ofw_bus_get_node() consistently return -1 when there is no associated	2012-03-15 22:53:39 +00:00
powermac	Remove bogus __unused attribute from hrowpic_eoi().	2012-07-01 19:07:45 +00:00
powerpc	Improve the handling of static DMA buffers that use non-default memory	2012-08-03 13:50:29 +00:00
ps3	- Change contigmalloc() to use the vm_paddr_t type instead of an unsigned	2012-03-01 19:58:34 +00:00
psim	Fix the interrupt code, broken 7 months ago. The interrupt framework	2011-01-29 20:58:38 +00:00