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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>		19 years ago
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boot	Merge nommu tree	19 years ago
common	[PATCH] LED: add sharp charger status LED trigger	19 years ago
configs	[ARM] 3387/1: ixp23xx: add defconfig	19 years ago
kernel	[ARM] 3439/2: xsc3: add I/O coherency support	19 years ago
lib	Merge master.kernel.org:/home/rmk/linux-2.6-arm	19 years ago
mach-aaec2000	…
mach-at91rm9200	…
mach-clps711x	…
mach-clps7500	…
mach-ebsa110	…
mach-ep93xx	[SERIAL] Provide Cirrus EP93xx AMBA PL010 serial support.	19 years ago
mach-footbridge	[PATCH] RTC: Remove RTC UIP synchronization on ARM	19 years ago
mach-h720x	…
mach-imx	…
mach-integrator	Merge master.kernel.org:/home/rmk/linux-2.6-serial	19 years ago
mach-iop3xx	…
mach-ixp4xx	…
mach-ixp23xx	[ARM] 3439/2: xsc3: add I/O coherency support	19 years ago
mach-ixp2000	…
mach-l7200	…
mach-lh7a40x	…
mach-omap1	[PATCH] Notifier chain update: API changes	19 years ago
mach-omap2	…
mach-pxa	[PATCH] backlight: corgi_bl: Generalise to support other Sharp SL hardware	19 years ago
mach-realview	…
mach-rpc	…
mach-s3c2410	[ARM] 3440/1: [S3C2410] make SMDK2410 and SMDK2440 similarities common	19 years ago
mach-sa1100	[ARM] 3436/1: 2.6.16-git18: collie_defconfig broken	19 years ago
mach-shark	…
mach-versatile	…
mm	[ARM] 3439/2: xsc3: add I/O coherency support	19 years ago
nwfpe	…
oprofile	…
plat-omap	…
tools	…
vfp	…
Kconfig	Merge master.kernel.org:/home/rmk/linux-2.6-arm	19 years ago
Kconfig-nommu	[ARM] nommu: fixups for the exception vectors	19 years ago
Kconfig.debug	…
Makefile	Merge nommu tree	19 years ago