* [PATCHv6 0/5] DMA Atomic pool for arm64
@ 2014-08-08 20:30 Laura Abbott
2014-08-11 9:30 ` Will Deacon
0 siblings, 1 reply; 2+ messages in thread
From: Laura Abbott @ 2014-08-08 20:30 UTC (permalink / raw)
To: Will Deacon, Catalin Marinas, Russell King
Cc: Laura Abbott, David Riley, linux-arm-kernel, Ritesh Harjain,
linux-mm, linux-kernel, Thierry Reding, Arnd Bergmann
Hi,
This is v6 of the series to add an atomic pool for arm64 and refactor some of
the arm dma_atomic code as well.
Russell, assuming you have no issues I'd like to get your Acked-by before
Catalin picks this up. As always, testing and reviews are appreiciated.
Thanks,
Laura
v6: Tweaked the commit text to clarify that arm is moving from
ioremap_page_range to map_vm_area and friends
v5: v4: Addressed comments from Thierry and Catalin. Updated map_vm_area call in
dma_common_pages_remap since the API changed.
v4: Simplified the logic in gen_pool_first_fit_order_align which makes the
data argument actually unused.
v3: Now a patch series due to refactoring of arm code. arm and arm64 now both
use genalloc for atomic pool management. genalloc extensions added.
DMA remapping code factored out as well.
v2: Various bug fixes pointed out by David and Ritesh (CMA dependency, swapping
coherent, noncoherent). I'm still not sure how to address the devicetree
suggestion by Will [1][2]. I added the devicetree mailing list this time around
to get more input on this.
[1] http://lists.infradead.org/pipermail/linux-arm-kernel/2014-April/249180.html
[2] http://lists.infradead.org/pipermail/linux-arm-kernel/2014-April/249528.html
Laura Abbott (5):
lib/genalloc.c: Add power aligned algorithm
lib/genalloc.c: Add genpool range check function
common: dma-mapping: Introduce common remapping functions
arm: use genalloc for the atomic pool
arm64: Add atomic pool for non-coherent and CMA allocations.
arch/arm/Kconfig | 1 +
arch/arm/mm/dma-mapping.c | 210 +++++++++----------------------
arch/arm64/Kconfig | 1 +
arch/arm64/mm/dma-mapping.c | 164 +++++++++++++++++++++---
drivers/base/dma-mapping.c | 67 ++++++++++
include/asm-generic/dma-mapping-common.h | 9 ++
include/linux/genalloc.h | 7 ++
lib/genalloc.c | 50 ++++++++
8 files changed, 338 insertions(+), 171 deletions(-)
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCHv6 0/5] DMA Atomic pool for arm64
2014-08-08 20:30 [PATCHv6 0/5] DMA Atomic pool for arm64 Laura Abbott
@ 2014-08-11 9:30 ` Will Deacon
0 siblings, 0 replies; 2+ messages in thread
From: Will Deacon @ 2014-08-11 9:30 UTC (permalink / raw)
To: Laura Abbott
Cc: Catalin Marinas, Russell King, David Riley, linux-arm-kernel,
Ritesh Harjain, linux-mm, linux-kernel, Thierry Reding,
Arnd Bergmann
On Fri, Aug 08, 2014 at 09:30:48PM +0100, Laura Abbott wrote:
> Hi,
>
> This is v6 of the series to add an atomic pool for arm64 and refactor some of
> the arm dma_atomic code as well.
>
> Russell, assuming you have no issues I'd like to get your Acked-by before
> Catalin picks this up. As always, testing and reviews are appreiciated.
>
> Thanks,
> Laura
>
>
> v6: Tweaked the commit text to clarify that arm is moving from
> ioremap_page_range to map_vm_area and friends
>
> v5: v4: Addressed comments from Thierry and Catalin. Updated map_vm_area call in
> dma_common_pages_remap since the API changed.
>
> v4: Simplified the logic in gen_pool_first_fit_order_align which makes the
> data argument actually unused.
>
> v3: Now a patch series due to refactoring of arm code. arm and arm64 now both
> use genalloc for atomic pool management. genalloc extensions added.
> DMA remapping code factored out as well.
>
> v2: Various bug fixes pointed out by David and Ritesh (CMA dependency, swapping
> coherent, noncoherent). I'm still not sure how to address the devicetree
> suggestion by Will [1][2]. I added the devicetree mailing list this time around
> to get more input on this.
>
> [1] http://lists.infradead.org/pipermail/linux-arm-kernel/2014-April/249180.html
> [2] http://lists.infradead.org/pipermail/linux-arm-kernel/2014-April/249528.html
FWIW: I don't think the device-tree comments need to block this series. I
was just curious as to why they weren't being used.
Will
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