linux-stable.git/include/linux/swiotlb.h, branch linux-2.6.30.y

swiotlb: range_needs_mapping should take a physical address.

2009-01-11T03:54:34+00:00

The swiotlb_arch_range_needs_mapping() hook should take a physical
address rather than a virtual address in order to support highmem pages.

Signed-off-by: Ian Campbell 
Signed-off-by: Ingo Molnar

x86, ia64: remove duplicated swiotlb code

2009-01-06T13:06:58+00:00

This adds swiotlb_map_page and swiotlb_unmap_page to lib/swiotlb.c and
remove IA64 and X86's swiotlb_map_page and swiotlb_unmap_page.

This also removes unnecessary swiotlb_map_single, swiotlb_map_single_attrs,
swiotlb_unmap_single and swiotlb_unmap_single_attrs.

Signed-off-by: FUJITA Tomonori 
Acked-by: Tony Luck 
Signed-off-by: Ingo Molnar

x86, ia64: convert to use generic dma_map_ops struct

2009-01-06T13:06:57+00:00

This converts X86 and IA64 to use include/linux/dma-mapping.h.

It's a bit large but pretty boring. The major change for X86 is
converting 'int dir' to 'enum dma_data_direction dir' in DMA mapping
operations. The major changes for IA64 is using map_page and
unmap_page instead of map_single and unmap_single.

Signed-off-by: FUJITA Tomonori 
Acked-by: Tony Luck 
Signed-off-by: Ingo Molnar

swiotlb: add hwdev to swiotlb_phys_to_bus() / swiotlb_sg_to_bus()

2008-12-28T08:54:52+00:00

Impact: extend functions with a (yet unused) parameter, update callsites

Some architectures need it - in preparation for highmem swiotlb.

Signed-off-by: Jeremy Fitzhardinge 
Signed-off-by: Ingo Molnar

swiotlb: add arch hook to force mapping

2008-12-17T17:58:13+00:00

Impact: generalize the sw-IOTLB range checks

Some architectures require special rules to determine whether a range
needs mapping or not.  This adds a weak function for architectures to
override.

Signed-off-by: Ian Campbell 
Signed-off-by: Jeremy Fitzhardinge 
Signed-off-by: Ingo Molnar

swiotlb: allow architectures to override phys<->bus<->phys conversions

2008-12-17T17:58:09+00:00

Impact: generalize phys<->bus<->phys conversions in the swiotlb code

Architectures may need to override these conversions. Implement a
__weak hook point containing the default implementation.

Signed-off-by: Ian Campbell 
Signed-off-by: Jeremy Fitzhardinge 
Signed-off-by: Ingo Molnar

swiotlb: move some definitions to header

2008-12-16T20:31:40+00:00

Impact: cleanup

Signed-off-by: Ian Campbell 
Signed-off-by: Jeremy Fitzhardinge 
Signed-off-by: Ingo Molnar

swiotlb: allow architectures to override swiotlb pool allocation

2008-12-16T20:31:38+00:00

Impact: generalize swiotlb allocation code

Architectures may need to allocate memory specially for use with
the swiotlb.  Create the weak function swiotlb_alloc_boot() and
swiotlb_alloc() defaulting to the current behaviour.

Signed-off-by: Jeremy Fitzhardinge 
Signed-off-by: Ian Campbell 
Signed-off-by: Ingo Molnar

introduce generic header file for the software IO/TLB

2008-10-16T18:21:28+00:00

A series of patches introduce a generic header file for the software
IO/TLB implementation in lib/swiotlb.c.  Currently each architecture using
this code defines the prototypes itself.  The prototypes are moved to
include/linux/swiotlb.h and this file is included in architecture specific
code for X86 and IA64.

This patch:

Create include/linux/swiotlb.h file which contains all function prototypes
for the lib/swiotlb.c file.

(akpm: the dependent patches will be trickled through arch trees)

Signed-off-by: Joerg Roedel 
Cc: Ingo Molnar 
Cc: Thomas Gleixner 
Cc: "Luck, Tony" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds