From: Arnd Bergmann <arnd@arndb.de>
To: Russell King <rmk+lkml@arm.linux.org.uk>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>,
linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org
Subject: Re: [PATCH] asm-generic: add dma-mapping-linear.h
Date: Mon, 1 Jun 2009 11:48:34 +0100 [thread overview]
Message-ID: <200906011148.35592.arnd@arndb.de> (raw)
In-Reply-To: <20090601104353.GA25391@flint.arm.linux.org.uk>
On Monday 01 June 2009, Russell King wrote:
>
> Err - there's only one highmem implementation on ARM.
Sorry for not being clear enough, I meant three implementations of
page_to_dma(), depending on highmem and platform:
return (dma_addr_t)__virt_to_bus((unsigned long)page_address(page));
return (dma_addr_t)__pfn_to_bus(page_to_pfn(page));
return __arch_page_to_dma(dev, page);
The generic code right now does the first, which won't work with highmem
and also won't handle platform specific requirements that are not present
on the other architectures.
Arnd <><
next prev parent reply other threads:[~2009-06-01 10:48 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-28 20:04 [PATCH] asm-generic: add dma-mapping-linear.h Arnd Bergmann
2009-06-01 4:02 ` FUJITA Tomonori
2009-06-01 7:51 ` Russell King
2009-06-01 8:08 ` FUJITA Tomonori
2009-06-01 8:29 ` Russell King
2009-06-01 8:29 ` Russell King
2009-06-01 9:16 ` FUJITA Tomonori
2009-06-01 9:22 ` Russell King
2009-06-01 9:32 ` FUJITA Tomonori
2009-06-01 10:14 ` Russell King
2009-06-01 10:41 ` Arnd Bergmann
2009-06-01 10:58 ` Russell King
2009-06-01 11:42 ` Arnd Bergmann
2009-06-01 10:28 ` Arnd Bergmann
2009-06-01 10:43 ` Russell King
2009-06-01 10:48 ` Arnd Bergmann [this message]
2009-06-01 10:11 ` Arnd Bergmann
2009-06-01 13:08 ` Michal Simek
2009-06-01 16:45 ` Arnd Bergmann
2009-06-02 11:11 ` Michal Simek
2009-06-04 7:57 ` FUJITA Tomonori
2009-06-04 12:35 ` Arnd Bergmann
2009-06-04 12:51 ` Russell King
2009-06-04 13:42 ` Arnd Bergmann
2009-06-04 14:38 ` Russell King
2009-06-04 14:49 ` Russell King
2009-06-04 16:29 ` Arnd Bergmann
2009-06-04 15:05 ` FUJITA Tomonori
2009-06-04 16:47 ` Arnd Bergmann
2009-06-04 20:11 ` Geert Uytterhoeven
2009-06-08 5:49 ` FUJITA Tomonori
2009-06-08 8:03 ` Arnd Bergmann
2009-06-08 8:23 ` FUJITA Tomonori
2009-06-08 8:49 ` Arnd Bergmann
2009-06-08 8:49 ` Arnd Bergmann
2009-06-04 12:45 ` Russell King
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