linux-toradex.git/arch/sparc/include/asm/dma.h, branch v4.9.91

sparc32: Convert mmu_* interfaces from btfixup to method ops.

2012-05-13T20:57:05+00:00

This set of changes displays one major danger of btfixup, interface
signatures are not always type checked fully.  As seen here the iounit
variant of the map_dma_area routine had an incorrect type for one of
it's arguments.

It turns out to be harmless in this case, but just imagine trying to
debug something involving this kind of problem.  No thanks.

Signed-off-by: David S. Miller

sparc: Kill mmu_{un,}lockarea().

2012-05-13T20:23:16+00:00

These were used on sun4c during floppy data transfers since on that
chip we had to lock the cpu mappings into the TLB because we cannot
take a TLB miss during the assembler floppy interrupt handler that
does the data transfer.

That is no longer necessary since we've removed sun4c support, thus
this stuff can disappear completely.

Signed-off-by: David S. Miller

sparc32: Trivial removal of sun4c references in comments.

2012-05-12T07:35:45+00:00

I left some around, like the ones in the openprom headers, since
we need to think about which pieces of those datastructures and
code we can completely toss now.

Signed-off-by: David S. Miller

sparc: Kill now spurious includes of sbus.h

2008-08-29T09:15:23+00:00

In order to make this week I also had to add an include
of linux/dma-mapping.h to asm/pci_32.h because drivers/pci/pci.c
really depends upon getting this header somehow.

Signed-off-by: David S. Miller

sparc32: Make mmu_map_dma_area and mmu_unmap_dma_area take a device pointer.

2008-08-29T09:15:07+00:00

This lets us kill this "map it in every IOMMU" crazy code, and also
some of the final references to sbus_root.

Signed-off-by: David S. Miller

sparc32: Kill mmu_translate_dvma and implementations.

2008-08-29T09:15:03+00:00

No longer used.

Signed-off-by: David S. Miller

sparc32: Make mmu_{get,release}_*() take a struct device pointer.

2008-08-29T09:13:13+00:00

Signed-off-by: David S. Miller

sparc: Kill SBUS DVMA layer.

2008-08-29T09:13:10+00:00

This thing was completely pointless.

Just find the OF device in the parent of drivers that want to program
this device, and map the DMA regs inside such drivers too.

This also moves the dummy claim_dma_lock() and release_dma_lock()
implementation to floppy_32.h, which makes it handle this issue
just like floppy_64.h does.

Signed-off-by: David S. Miller

sparc, sparc64: use arch/sparc/include

2008-07-27T21:00:59+00:00

The majority of this patch was created by the following script:

***
ASM=arch/sparc/include/asm
mkdir -p $ASM
git mv include/asm-sparc64/ftrace.h $ASM
git rm include/asm-sparc64/*
git mv include/asm-sparc/* $ASM
sed -ie 's/asm-sparc64/asm/g' $ASM/*
sed -ie 's/asm-sparc/asm/g' $ASM/*
***

The rest was an update of the top-level Makefile to use sparc
for header files when sparc64 is being build.
And a small fixlet to pick up the correct unistd.h from
sparc64 code.

Signed-off-by: Sam Ravnborg