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ARM: fix highmem with VIPT cache and DMA

PATCH New Allen Pais 2 participants 4 messages Apr 23, 2010 – Apr 26, 2010

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Allen Pais

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PATCH 1/1 ARM: fix highmem with VIPT cache and DMA

Nicolas,

As mentioned by Hemanth, we were facing issues with
highmem and MMC, but this is resolved now with the patch you shared.

Here's the patch for your ref.[its reverted cause of the
issue]
http://dev.omapzoom.org/?p=integration/kernel-omap3.git;a=commit;h=f6427e74a3c08fa5e30c99de0e9e8ed9d3b65b74

But currently we are facing issues with test cases such
as AV Playback, mp3 play, image capture, camera capture+mpeg4 encode.

Am not sure what's causing this break, any pointer would be
helpful.

Thanks,

- Allen

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#1 lore raw

PATCH 1/1 ARM: fix highmem with VIPT cache and DMA

Quoted 10 lines · Allen Pais

Nicolas,

As mentioned by Hemanth, we were facing issues with
highmem and MMC, but this is resolved now with the patch you shared.

Here's the patch for your ref.[its reverted cause of the
issue]
http://dev.omapzoom.org/?p=integration/kernel-omap3.git;a=commit;h=f6427e74a3c08fa5e30c99de0e9e8ed9d3b65b74

Quoted 6 lines

But currently we are facing issues with test cases such
as AV Playback, mp3 play, image capture, camera capture+mpeg4 encode.

Am not sure what's causing this break, any pointer would be
helpful.

To be clear, are you saying that those test cases are failing with highmem only?

Nicolas

author
#2 lore raw

PATCH 1/1 ARM: fix highmem with VIPT cache and DMA

Quoted 10 lines

? ? As mentioned by Hemanth, we were facing issues with highmem and MMC, but this is resolved now with the patch you shared.

? ? Here's the patch for your ref.[its reverted cause of the issue]
http://dev.omapzoom.org/?p=integration/kernel-omap3.git;a=commit;h=f6427e74a3c08fa5e30c99de0e9e8ed9d3b65b74

Quoted 6 lines

???But currently we are facing issues with test cases such as AV Playback, mp3 play, image capture, camera capture+mpeg4 encode.

???Am not sure what's causing this break, any pointer would be helpful.

To be clear, are you saying that those test cases are failing with highmem only?

[Allen] Yes, when Highmem is enabled, these(testcases) failures are what we are observing.

- Allen

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#3 lore raw

PATCH 1/1 ARM: fix highmem with VIPT cache and DMA

Quoted 4 lines · Allen Pais
Quoted 4 lines
Quoted 4 lines

???But currently we are facing issues with test cases such as AV Playback, mp3 play, image capture, camera capture+mpeg4 encode.

Quoted 8 lines
Quoted 5 lines
Quoted 2 lines

???Am not sure what's causing this break, any pointer would be helpful.

To be clear, are you saying that those test cases are failing with highmem only?

Yes, when Highmem is enabled, these(testcases) failures are what we are observing.

Let's take a simple one: mp3 playback. What exactly is happening when highmem is enabled?

Nicolas