From: tixy@yxit.co.uk (Tixy)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 05/12] ARM: mach-s5pv210: Setup consistent dma size at boot time
Date: Thu, 11 Aug 2011 14:08:09 +0100 [thread overview]
Message-ID: <1313068089.6698.12.camel@computer2> (raw)
In-Reply-To: <20110811125016.GD24434@atrey.karlin.mff.cuni.cz>
On Thu, 2011-08-11 at 14:50 +0200, Pavel Machek wrote:
>
> > -#define CONSISTENT_DMA_SIZE (SZ_8M + SZ_4M + SZ_2M)
> ...
> > + init_consistent_dma_size(14 << 20);
>
> Are you sure that's equivalent?
Yes. From include/asm-generic/sizes.h
#define SZ_2M 0x00200000
#define SZ_4M 0x00400000
#define SZ_8M 0x00800000
The max DMA size seems to be have been defined as 14MB at some point and
several platforms define the size to be this value, but in different
ways:
SZ_16M - SZ_2M
SZ_8M + SZ_4M + SZ_2M
14 << 20
I chose to use just one for consistency, and (14 << 20) seemed clearer
to me.
--
Jon (a.k.a. Tixy)
next prev parent reply other threads:[~2011-08-11 13:08 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-08 14:28 [PATCH 0/12] ARM: Remove define CONSISTENT_DMA_SIZE Jon Medhurst
2011-08-08 14:28 ` [PATCH 01/12] ARM: Add init_consistent_dma_size() Jon Medhurst
2011-08-18 13:02 ` Nicolas Pitre
2011-08-08 14:28 ` [PATCH 02/12] ARM: omap: Setup consistent dma size at boot time Jon Medhurst
2011-08-08 14:28 ` [PATCH 03/12] ARM: mach-s3c64xx: " Jon Medhurst
2011-08-08 14:28 ` [PATCH 04/12] ARM: mach-s5p64x0: " Jon Medhurst
2011-08-08 14:28 ` [PATCH 05/12] ARM: mach-s5pv210: " Jon Medhurst
2011-08-11 12:50 ` Pavel Machek
2011-08-11 13:08 ` Tixy [this message]
2011-08-12 15:09 ` Pavel Machek
2011-08-08 14:28 ` [PATCH 06/12] ARM: mxc: " Jon Medhurst
2011-08-08 16:47 ` Sascha Hauer
2011-08-08 17:07 ` Tixy
2011-08-18 3:12 ` Nicolas Pitre
2011-08-18 8:13 ` Tixy
2011-08-18 18:51 ` Sascha Hauer
2011-08-19 9:08 ` Tixy
2011-08-19 17:00 ` Sascha Hauer
2011-08-22 11:05 ` Tixy
2011-08-22 11:37 ` Sascha Hauer
2011-08-08 14:28 ` [PATCH 07/12] ARM: mach-davinci: " Jon Medhurst
2011-08-08 14:28 ` [PATCH 08/12] ARM: mach-u300: " Jon Medhurst
2011-08-09 9:31 ` Linus Walleij
2011-08-08 14:28 ` [PATCH 09/12] ARM: mach-at91: " Jon Medhurst
2011-08-08 19:52 ` Nicolas Ferre
2011-08-08 14:28 ` [PATCH 10/12] ARM: mach-bcmring: " Jon Medhurst
2011-08-08 14:28 ` [PATCH 11/12] ARM: mach-shmobile: " Jon Medhurst
2011-08-08 14:28 ` [PATCH 12/12] ARM: Remove support for macro CONSISTENT_DMA_SIZE Jon Medhurst
2011-08-22 13:06 ` Submitting patchset: ARM: Remove define CONSISTENT_DMA_SIZE Tixy
2011-08-22 13:59 ` Nicolas Pitre
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