linux.git/arch/arm/include/asm/memory.h, branch v2.6.35 Linux kernel source tree ARM: 5928/1: Change type of VMALLOC_END to unsigned long. 2010-02-15T21:40:33+00:00 Fenkart/Bostandzhyan andreas.fenkart@streamunlimited.com 2010-02-07T20:47:17+00:00 c931b4f655a1b86c929384e674eb8c31795f3bd7 Makes it consistent with VMALLOC_START Tested-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Andreas Fenkart <andreas.fenkart@streamunlimited.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Makes it consistent with VMALLOC_START

Tested-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Andreas Fenkart <andreas.fenkart@streamunlimited.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: 5927/1: Make delimiters of DMA area globally visibly. 2010-02-15T21:40:32+00:00 Fenkart/Bostandzhyan andreas.fenkart@streamunlimited.com 2010-02-07T20:46:33+00:00 a7bd08c82e4f74387a39eeebb942712f23967420 Adds DMA area to 'virtual memory map' startup message Tested-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Andreas Fenkart <andreas.fenkart@streamunlimited.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Adds DMA area to 'virtual memory map' startup message

Tested-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Andreas Fenkart <andreas.fenkart@streamunlimited.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Merge branch 'pending-dma-streaming' (early part) into devel 2009-12-04T15:00:11+00:00 Russell King rmk+kernel@arm.linux.org.uk 2009-12-04T15:00:08+00:00 2fc42814d8a9dd757abc7f80fbf11e9247e97d40 






ARM: dma-mapping: simplify page_to_dma() and __pfn_to_bus()
2009-11-23T12:53:26+00:00

Russell King
rmk+kernel@arm.linux.org.uk

2009-10-31T15:58:30+00:00

1c4a4f48a14861a567c8861355bc8252da3a003f

The non-highmem() and the __pfn_to_bus() based page_to_dma() both
compile to the same code, so its pointless having these two different
approaches.  Use the __pfn_to_bus() based version.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-By: Jamie Iles <jamie@jamieiles.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>





The non-highmem() and the __pfn_to_bus() based page_to_dma() both
compile to the same code, so its pointless having these two different
approaches.  Use the __pfn_to_bus() based version.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-By: Jamie Iles <jamie@jamieiles.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>







ARM: provide phys_to_page() to complement page_to_phys()
2009-11-23T12:53:20+00:00

Russell King
rmk+kernel@arm.linux.org.uk

2009-10-31T17:51:57+00:00

719301ff1c77b6da7b1b6f78a1e51af64a678619

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-By: Jamie Iles <jamie@jamieiles.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>





Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-By: Jamie Iles <jamie@jamieiles.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>







Revert "[ARM] unconditionally define __virt_to_phys and __phys_to_virt"
2009-10-19T15:51:28+00:00

Russell King
rmk+kernel@arm.linux.org.uk

2009-10-19T15:51:28+00:00

a8cf81ffe0284660fe405e7189f47f1b032f5261

This reverts commit 75f4aa15cf05ce6d99c8261cf57dcd749877fd1c.

We have a couple of platforms which require non-linear P:V mappings,
so we need these to be overridable.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>





This reverts commit 75f4aa15cf05ce6d99c8261cf57dcd749877fd1c.

We have a couple of platforms which require non-linear P:V mappings,
so we need these to be overridable.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>







Merge branch 'master' into devel
2009-09-12T11:04:37+00:00

Russell King
rmk@dyn-67.arm.linux.org.uk

2009-09-12T11:04:37+00:00

87d721ad7a37b7650dd710c88dd5c6a5bf9fe996












ARM: Fix pfn_valid() for sparse memory
2009-09-12T10:48:09+00:00

Russell King
rmk@dyn-67.arm.linux.org.uk

2009-09-07T14:06:42+00:00

b7cfda9fc3d7aa60cffab5367f2a72a4a70060cd

On OMAP platforms, some people want to declare to segment up the memory
between the kernel and a separate application such that there is a hole
in the middle of the memory as far as Linux is concerned.  However,
they want to be able to mmap() the hole.

This currently causes problems, because update_mmu_cache() thinks that
there are valid struct pages for the "hole".  Fix this by making
pfn_valid() slightly more expensive, by checking whether the PFN is
contained within the meminfo array.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-by: Khasim Syed Mohammed <khasim@ti.com>





On OMAP platforms, some people want to declare to segment up the memory
between the kernel and a separate application such that there is a hole
in the middle of the memory as far as Linux is concerned.  However,
they want to be able to mmap() the hole.

This currently causes problems, because update_mmu_cache() thinks that
there are valid struct pages for the "hole".  Fix this by making
pfn_valid() slightly more expensive, by checking whether the PFN is
contained within the meminfo array.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-by: Khasim Syed Mohammed <khasim@ti.com>







Thumb-2: Add support for loadable modules
2009-07-24T11:32:59+00:00

Catalin Marinas
catalin.marinas@arm.com

2009-07-24T11:32:59+00:00

adca6dc23bc620ea95392659625200a252b97be3

Modules compiled to Thumb-2 have two additional relocations needing to
be resolved at load time, R_ARM_THM_CALL and R_ARM_THM_JUMP24, for BL
and B.W instructions. The maximum Thumb-2 addressing range is +/-2^24
(+/-16MB) therefore the MODULES_VADDR macro in asm/memory.h is set to
(MODULES_END - 8MB) for the Thumb-2 compiled kernel.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>





Modules compiled to Thumb-2 have two additional relocations needing to
be resolved at load time, R_ARM_THM_CALL and R_ARM_THM_JUMP24, for BL
and B.W instructions. The maximum Thumb-2 addressing range is +/-2^24
(+/-16MB) therefore the MODULES_VADDR macro in asm/memory.h is set to
(MODULES_END - 8MB) for the Thumb-2 compiled kernel.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>







[ARM] make page_to_dma() highmem aware
2009-03-16T01:01:21+00:00

Nicolas Pitre
nico@cam.org

2008-09-09T19:54:13+00:00

58edb515724f9e63e569536d01ac8d8f8ddb367a

If a machine class has a custom __virt_to_bus() implementation then it
must provide a __arch_page_to_dma() implementation as well which is
_not_ based on page_address() to support highmem.

This patch fixes existing __arch_page_to_dma() and provide a default
implementation otherwise.  The default implementation for highmem is
based on __pfn_to_bus() which is defined only when no custom
__virt_to_bus() is provided by the machine class.

That leaves only ebsa110 and footbridge which cannot support highmem
until they provide their own __arch_page_to_dma() implementation.
But highmem support on those legacy platforms with limited memory is
certainly not a priority.

Signed-off-by: Nicolas Pitre <nico@marvell.com>





If a machine class has a custom __virt_to_bus() implementation then it
must provide a __arch_page_to_dma() implementation as well which is
_not_ based on page_address() to support highmem.

This patch fixes existing __arch_page_to_dma() and provide a default
implementation otherwise.  The default implementation for highmem is
based on __pfn_to_bus() which is defined only when no custom
__virt_to_bus() is provided by the machine class.

That leaves only ebsa110 and footbridge which cannot support highmem
until they provide their own __arch_page_to_dma() implementation.
But highmem support on those legacy platforms with limited memory is
certainly not a priority.

Signed-off-by: Nicolas Pitre <nico@marvell.com>