Commit Graph

23 Commits

Author SHA1 Message Date
Sam Ravnborg 6e6e41879e sparc32: fix build with STRICT_MM_TYPECHECKS
Based on recent thread on linux-arch (some weeks ago) I
decided to check how much work was required to build sparc32
with STRICT_MM_TYPECHECKS enabled.

The resulting binary (checked srmmu.o) was to my suprise smaller with
STRICT_MM_TYPECHECKS defined, than without.

As I have no working gear to test sparc32 bits at for the moment,
I did not enable STRICT_MM_TYPECHECKS - but was tempeted to do so.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-20 17:55:42 -07:00
Sam Ravnborg 1918660b90 sparc32: fix sparse warning in io-unit.c
Fix following warning:
io-unit.c:56:13: warning: incorrect type in assignment (different address spaces)

The page table for the io unit resides in __iomem.
Fix up all users of the io unit page table.
Introduce sbus helers for all read/write operations.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-18 19:01:26 -07:00
David S. Miller d894d964ff sparc32: Convert mmu_* interfaces from btfixup to method ops.
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 <davem@davemloft.net>
2012-05-13 13:57:05 -07:00
David S. Miller 679bea5e43 sparc: Kill mmu_{un,}lockarea().
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 <davem@davemloft.net>
2012-05-13 13:23:16 -07:00
Grant Likely cd4cd7306a sparc: remove references to of_device and to_of_device
of_device is just a #define alias to platform_device.  This patch
replaces all references to it with platform_device.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: David S. Miller <davem@davemloft.net>
2010-07-24 09:58:22 -06:00
Robert Reif aa83a26a19 sparc: use sparc64 version of scatterlist.h
Use sparc64 version of scatterlist.h.

There are three main differences:
    dma_addr_t replaces __u32
    dma_address replaces dvma_address
    dma_length replaces dvma_length

dma_addr_t is a u32 on sparc32.

Boot tested on sparc32.

Signed-off-by: Robert Reif <reif@earthlink.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-11 20:24:58 -08:00
David S. Miller 9dc69230a9 sparc: Kill now spurious includes of sbus.h
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 <davem@davemloft.net>
2008-08-29 02:15:23 -07:00
David S. Miller 0ad626a2a4 sparc32: Kill iounit_map_dma_*().
Unused.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-29 02:15:23 -07:00
David S. Miller 046e26a8ba sparc: Remove generic SBUS probing layer.
The individual SBUS IOMMU arch code now sets the IOMMU information
directly into the OF device objects.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-29 02:15:21 -07:00
David S. Miller 4b1c5df2af sparc32: Make mmu_map_dma_area and mmu_unmap_dma_area take a device pointer.
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 <davem@davemloft.net>
2008-08-29 02:15:07 -07:00
David S. Miller b1387c35be sparc32: Kill mmu_translate_dvma and implementations.
No longer used.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-29 02:15:03 -07:00
David S. Miller 260489fa8a sparc32: Make mmu_{get,release}_*() take a struct device pointer.
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-29 02:13:13 -07:00
David S. Miller e003934876 sparc32: Make IOMMU and IO-UNIT init work with device nodes.
And stick the iommu archdata pointer into the generic OF device tree
of_device struct as well.

We still have to pass the sbus_bus object down into the routines so
that the SBUS bus objects get the iommu cookies set properly.  After
drivers get converted to being pure OF drivers, that can go away.

Signed-off-by: David S. Miller <davem@davemloft.net>
2008-08-29 02:13:11 -07:00
Adrian Bunk 88278ca27a sparc: remove CVS keywords
This patch removes the CVS keywords that weren't updated for a long time
from comments.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-20 00:33:44 -07:00
David S. Miller 6ee4e28be8 [SPARC32]: Fix build-warning in io-unit.c
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-27 00:54:14 -07:00
Jens Axboe 58b053e4ce Update arch/ to use sg helpers
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-22 21:19:59 +02:00
Jens Axboe 0912a5db0e SPARC: sg chaining support
This updates the sparc iommu/pci dma mappers to sg chaining.

Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-10-16 11:27:32 +02:00
Robert Reif 3ac4c949e0 [SPARC32]: Remove iommu from struct sbus_bus and use archdata like sparc64.
Signed-off-by: Robert Reif <reif@earthlink.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-08-10 15:52:06 -07:00
David S. Miller d4accd60d2 [SPARC]: Check kzalloc() return value in SUN4D irq/iommu init.
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-10 02:40:10 -08:00
Yan Burman c80892d150 [SPARC]: Replace kmalloc+memset with kzalloc
Replace kmalloc+memset with kzalloc

Signed-off-by: Yan Burman <burman.yan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-12-10 02:40:00 -08:00
Raymond Burns 2f72ba4358 [SPARC]: Initialize iounit spinlock in iounit_init().
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-07-21 14:18:13 -07:00
Jörn Engel 6ab3d5624e Remove obsolete #include <linux/config.h>
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-30 19:25:36 +02:00
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00