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Re: [PATCH 6/6] atmel_serial: Add DMA support

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From: Haavard Skinnemoen <hskinnemoen@...>
To: Marc Pignat <marc.pignat@...>
Cc: Andrew Victor <linux@...>, <kernel@...>, <linux-kernel@...>, Remy Bohmer <linux@...>, Chip Coldwell <coldwell@...>
Subject: Re: [PATCH 6/6] atmel_serial: Add DMA support
Date: Wednesday, January 23, 2008 - 10:05 am

On Wed, 23 Jan 2008 14:52:55 +0100
Marc Pignat <marc.pignat@hevs.ch> wrote:


No, I think GFP_DMA is for legacy ISA DMA and other DMA controllers
with addressing limitations. The PDC is capable of accessing the full
32-bit physical address space on both AT91 and AVR32, so no special DMA
flags are needed.

Haavard
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Messages in current thread:
[PATCH v3 0/6] atmel_serial: Cleanups, irq handler splitup &..., Haavard Skinnemoen, (Tue Jan 22, 10:50 am)
[PATCH 1/6] atmel_serial: Clean up the code, Haavard Skinnemoen, (Tue Jan 22, 10:50 am)
[PATCH 2/6] atmel_serial: Use cpu_relax() when busy-waiting, Haavard Skinnemoen, (Tue Jan 22, 10:50 am)
[PATCH 3/6] atmel_serial: Use existing console options only ..., Haavard Skinnemoen, (Tue Jan 22, 10:50 am)
[PATCH 4/6] atmel_serial: Fix bugs in probe() error path and..., Haavard Skinnemoen, (Tue Jan 22, 10:50 am)
[PATCH 5/6] atmel_serial: Split the interrupt handler, Haavard Skinnemoen, (Tue Jan 22, 10:50 am)
[PATCH 6/6] atmel_serial: Add DMA support, Haavard Skinnemoen, (Tue Jan 22, 10:50 am)
Re: [PATCH 6/6] atmel_serial: Add DMA support, Marc Pignat, (Tue Jan 22, 12:52 pm)
Re: [PATCH 6/6] atmel_serial: Add DMA support, Haavard Skinnemoen, (Wed Jan 23, 7:53 am)
Re: [PATCH 6/6] atmel_serial: Add DMA support, Marc Pignat, (Wed Jan 23, 8:30 am)
Re: [PATCH 6/6] atmel_serial: Add DMA support, Haavard Skinnemoen, (Wed Jan 23, 8:45 am)
Re: [PATCH 6/6] atmel_serial: Add DMA support, Marc Pignat, (Wed Jan 23, 9:18 am)
Re: [PATCH 6/6] atmel_serial: Add DMA support, Haavard Skinnemoen, (Wed Jan 23, 9:35 am)
Re: [PATCH 6/6] atmel_serial: Add DMA support, Marc Pignat, (Wed Jan 23, 9:52 am)
Re: [PATCH 6/6] atmel_serial: Add DMA support, Haavard Skinnemoen, (Wed Jan 23, 10:05 am)
Re: [PATCH 6/6] atmel_serial: Add DMA support, Alan Cox, (Wed Jan 23, 11:04 am)
Re: [PATCH 6/6] atmel_serial: Add DMA support, Haavard Skinnemoen, (Wed Jan 23, 11:14 am)
Re: [PATCH 6/6] atmel_serial: Add DMA support, Alan Cox, (Wed Jan 23, 12:41 pm)