Commit Graph

13 Commits

Author SHA1 Message Date
Thomas Gleixner bd31b85960 locking, ARM: Annotate low level hw locks as raw
Annotate the low level hardware locks which must not be preempted.

In mainline this change documents the low level nature of
the lock - otherwise there's no functional difference. Lockdep
and Sparse checking will work as usual.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-09-13 11:12:14 +02:00
Nicolas Pitre fb89fcfb15 ARM: ARM_DMA_ZONE_SIZE is no more
One less dependency on mach/memory.h.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
2011-07-18 15:30:57 -04:00
Nicolas Pitre 650320181a ARM: change ARM_DMA_ZONE_SIZE into a variable
Having this value defined at compile time prevents multiple machines with
conflicting definitions to coexist.  Move it to a variable in preparation
for having a per machine value selected at run time.  This is relevant
only when CONFIG_ZONE_DMA is selected.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
2011-07-18 15:29:41 -04:00
Russell King 2fb3ec5c95 ARM: Replace platform definition of ISA_DMA_THRESHOLD/MAX_DMA_ADDRESS
The values of ISA_DMA_THRESHOLD and MAX_DMA_ADDRESS are related; one is
the physical/bus address, the other is the virtual address.  Both need
to be kept in step, so rather than having platforms define both, allow
them to define a single macro which sets both of these macros
appropraitely.

Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-12 08:36:49 +01:00
Peter Hüwe f892027c02 ARM: 5870/1: arch/arm: Fix build failure for defconfigs without CONFIG_ISA_DMA_API set
A lot of ARM-defconfigs (those without CONFIG_ISA_DMA_API set) fail to
build [1][2][3] due to the changes of the patch
    [PATCH] PCI: Clean up build for CONFIG_PCI_QUIRKS unset
    by Rafael J. Wysocki (Sat, 2 Jan 2010 22:57:24 +0100) [4]
as the referenced variable 'isa_dma_bridge_buggy' in asm/dma.h is
enclosed by the CONFIG_ISA_DMA_API conditional all configs without this
setting fail to build.

I'm not sure wether moving the condition is the right way to solve the
issue, but atleast it fixes the issue :)

References:
[1] http://kisskb.ellerman.id.au/kisskb/buildresult/1983354/
[2] http://kisskb.ellerman.id.au/kisskb/buildresult/1983333/
[3] http://kisskb.ellerman.id.au/kisskb/buildresult/1983337/
[4] http://lkml.org/lkml/2010/1/2/102

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-01-10 00:08:03 +00:00
Russell King f0ffc81625 [ARM] dma: remove dmamode_t typedef
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-02 12:34:55 +00:00
Russell King bc6447b8e4 [ARM] dma: make DMA_MODE_xxx reflect ISA DMA settings
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-02 12:18:53 +00:00
Russell King 1df8130278 [ARM] dma: remove dmach_t typedef
Remove a pointless integer typedef.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-12-08 15:58:50 +00:00
Russell King f40b121d98 [ARM] Rename ISA mach/dma.h header to mach/isa-dma.h
This avoids confusion with platform specific DMA implementations in
mach/dma.h

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-29 18:49:55 +00:00
Russell King dcea83adc6 [ARM] Hide ISA DMA API when ISA_DMA_API is unset
When ISA_DMA_API is unset, we're not implementing the ISA DMA API,
so there's no point in publishing the prototypes via asm/dma.h, nor
including the machine dependent parts of that API.

This allows us to remove a lot of mach/dma.h files which don't contain
any useful code.  Unfortunately though, some platforms put their own
private non-ISA definitions into mach/dma.h, so we leave these behind
and fix the appropriate #include statments.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-29 18:42:40 +00:00
Russell King b9c78022b0 [ARM] move MAX_DMA_ADDRESS to mach/memory.h
Move the definition of MAX_DMA_ADDRESS from mach/dma.h to mach/memory.h,
thereby placing it along side its relative, ISA_DMA_THRESHOLD.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-11-29 10:50:22 +00:00
Russell King a09e64fbc0 [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach
This just leaves include/asm-arm/plat-* to deal with.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-07 09:55:48 +01:00
Russell King 4baa992243 [ARM] move include/asm-arm to arch/arm/include/asm
Move platform independent header files to arch/arm/include/asm, leaving
those in asm/arch* and asm/plat* alone.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-08-02 21:32:35 +01:00