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

..

altivec.c

…

autoconf.c

…

bcopy.c

MFppc64:

2010-07-09 14:01:18 +00:00

bus_machdep.c

Replace eieio; sync for creating bus-space memory barriers with sync.

2012-04-22 18:54:51 +00:00

busdma_machdep.c

Improve the handling of static DMA buffers that use non-default memory

2012-08-03 13:50:29 +00:00

copystr.c

…

cpu.c

Let us manage differences of Book-E PowerPC variations i.e. vendor /

2012-05-27 10:25:20 +00:00

db_disasm.c

…

db_hwwatch.c

…

db_interface.c

MFppc64:

2010-07-13 05:32:19 +00:00

db_trace.c

Let us manage differences of Book-E PowerPC variations i.e. vendor /

2012-05-27 10:25:20 +00:00

dump_machdep.c

Add the watchdogs patting during the (shutdown time) disk syncing and

2011-04-28 16:02:05 +00:00

elf32_machdep.c

Extend struct sysvec with new method sv_schedtail, which is used for an

2011-03-08 19:01:45 +00:00

elf64_machdep.c

Extend struct sysvec with new method sv_schedtail, which is used for an

2011-03-08 19:01:45 +00:00

exec_machdep.c

Do not restore the register holding the TLS pointer when doing various

2012-04-11 00:00:40 +00:00

fpu.c

…

fuswintr.c

…

gdb_machdep.c

Let us manage differences of Book-E PowerPC variations i.e. vendor /

2012-05-27 10:25:20 +00:00

genassym.c

Let us manage differences of Book-E PowerPC variations i.e. vendor /

2012-05-27 10:25:20 +00:00

in_cksum.c

MFppc64:

2010-07-13 05:32:19 +00:00

intr_machdep.c

Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs.

2011-11-07 06:44:47 +00:00

iommu_if.m

- Change contigmalloc() to use the vm_paddr_t type instead of an unsigned

2012-03-01 19:58:34 +00:00

mem.c

Add reader/writer lock around mem_range_attr_get() and mem_range_attr_set().

2011-01-17 22:58:28 +00:00

mmu_if.m

Avoid recursion on the pvh global lock in the aim oea pmap.

2012-07-10 22:10:21 +00:00

mp_machdep.c

MFC

2011-06-24 16:35:40 +00:00

openpic_fdt.c

Move OpenPIC FDT bus glue to a shared location, so that other PowerPC

2012-05-26 21:02:49 +00:00

openpic.c

Make the intended change.

2011-05-10 13:48:21 +00:00

pic_if.m

Add the powerpc support.

2011-05-09 16:16:15 +00:00

platform_if.m

Add some platform KOBJ extensions and continue integrating PowerPC

2010-11-12 04:18:19 +00:00

platform.c

Fix physical address type to vm_paddr_t.

2012-05-24 21:13:24 +00:00

pmap_dispatch.c

Fix physical address type to vm_paddr_t.

2012-05-24 21:13:24 +00:00

sc_machdep.c

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setjmp.S

This commit adds profiling support for powerpc64. Now we can do application

2012-01-20 22:34:19 +00:00

sigcode32.S

MFppc64:

2010-07-13 05:32:19 +00:00

sigcode64.S

MFppc64:

2010-07-13 05:32:19 +00:00

stack_machdep.c

MFppc64:

2010-07-13 05:32:19 +00:00

suswintr.c

…

syncicache.c

MFppc64:

2010-07-13 05:32:19 +00:00

sys_machdep.c

MFppc64:

2010-07-13 05:32:19 +00:00

uio_machdep.c

Put the general logic for being a CPU hog into a new function

2011-02-02 16:35:10 +00:00