kernel_optimize_test/include
Lennert Buytenhek 23759dc643 [ARM] 3439/2: xsc3: add I/O coherency support
Patch from Lennert Buytenhek

This patch adds support for the I/O coherent cache available on the
xsc3.  The approach is to provide a simple API to determine whether the
chipset supports coherency by calling arch_is_coherent() and then
setting the appropriate system memory PTE and PMD bits.  In addition,
we call this API on dma_alloc_coherent() and dma_map_single() calls.
A generic version exists that will compile out all the coherency-related
code that is not needed on the majority of ARM systems.

Note that we do not check for coherency in the dma_alloc_writecombine()
function as that still requires a special PTE setting.  We also don't
touch dma_mmap_coherent() as that is a special ARM-only API that is by
definition only used on non-coherent system.

Signed-off-by: Deepak Saxena <dsaxena@plexity.net>
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-04-02 00:07:39 +01:00
..
acpi
asm-alpha [PATCH] alpha: make poll flags the same as other architectures 2006-03-28 09:16:02 -08:00
asm-arm [ARM] 3439/2: xsc3: add I/O coherency support 2006-04-02 00:07:39 +01:00
asm-arm26
asm-cris
asm-frv
asm-generic [PATCH] mutex: some cleanups 2006-03-31 12:19:01 -08:00
asm-h8300
asm-i386 [PATCH] make local_t signed 2006-03-31 12:18:55 -08:00
asm-ia64 [IA64] Avoid "u64 foo : 32;" for gcc3 vs. gcc4 compatibility 2006-03-31 10:28:29 -08:00
asm-m32r
asm-m68k
asm-m68knommu
asm-mips Merge master.kernel.org:/home/rmk/linux-2.6-serial 2006-03-28 13:52:37 -08:00
asm-parisc [PARISC] Add atomic_sub_and_test 2006-03-30 17:48:59 +00:00
asm-powerpc Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2006-03-31 12:52:30 -08:00
asm-ppc [PATCH] lock PTE before updating it in 440/BookE page fault handler 2006-03-29 13:44:15 +11:00
asm-s390 [PATCH] for_each_possible_cpu: s390 2006-03-31 12:18:52 -08:00
asm-sh [PATCH] Typo fixes 2006-03-28 09:16:08 -08:00
asm-sh64
asm-sparc
asm-sparc64 Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 2006-03-28 09:25:22 -08:00
asm-um [PATCH] uml: check for differences in host support 2006-03-31 12:18:52 -08:00
asm-v850
asm-x86_64 [PATCH] make local_t signed 2006-03-31 12:18:55 -08:00
asm-xtensa
keys
linux Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2006-03-31 12:52:30 -08:00
math-emu
media
mtd
net [TCP]: Kill unused extern decl for tcp_v4_hash_connecting() 2006-03-31 02:25:46 -08:00
pcmcia
rdma IB/mad: RMPP support for additional classes 2006-03-30 07:19:51 -08:00
rxrpc
scsi
sound [PATCH] mark f_ops const in the inode 2006-03-28 09:16:05 -08:00
video