From: Paul Mundt <lethal@linux-sh.org>
To: James Bottomley <James.Bottomley@suse.de>
Cc: linux-arch@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-parisc@vger.kernel.org, Russell King <rmk@arm.linux.org.uk>,
Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH 4/6] sh: add mm API for DMA to vmalloc/vmap areas
Date: Thu, 10 Sep 2009 09:27:17 +0900 [thread overview]
Message-ID: <20090910002717.GC23674@linux-sh.org> (raw)
In-Reply-To: <1252511536-22066-5-git-send-email-James.Bottomley@suse.de>
On Wed, Sep 09, 2009 at 10:52:14AM -0500, James Bottomley wrote:
> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
> ---
> arch/sh/include/asm/cacheflush.h | 8 ++++++++
> 1 files changed, 8 insertions(+), 0 deletions(-)
>
> diff --git a/arch/sh/include/asm/cacheflush.h b/arch/sh/include/asm/cacheflush.h
> index 4c5462d..db06611 100644
> --- a/arch/sh/include/asm/cacheflush.h
> +++ b/arch/sh/include/asm/cacheflush.h
> @@ -48,6 +48,14 @@ static inline void flush_kernel_dcache_page(struct page *page)
> {
> flush_dcache_page(page);
> }
> +static inline void flush_kernel_dcache_addr(void *addr)
> +{
> + __flush_invalidate_region(addr, PAGE_SIZE);
> +}
> +static inline void invalidate_kernel_dcache_addr(void *addr)
> +{
> + __flush_invalidate_region(addr, PAGE_SIZE);
> +}
>
Actually, I spoke too soon. The first one should be either a
__flush_purge_region() or __flush_wback_region() I suspect. The former
does both a writeback and invalidate, while the latter only does the
writeback.
next prev parent reply other threads:[~2009-09-10 0:27 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-09 15:52 [PATCH 0/6] fix xfs by making I/O to vmap/vmalloc areas work James Bottomley
2009-09-09 15:52 ` [PATCH 1/6] mm: add coherence API for DMA to vmalloc/vmap areas James Bottomley
2009-09-09 15:52 ` [PATCH 2/6] parisc: add mm " James Bottomley
2009-09-09 15:52 ` [PATCH 3/6] arm: " James Bottomley
2009-09-09 15:52 ` [PATCH 4/6] sh: " James Bottomley
2009-09-09 15:52 ` [PATCH 5/6] block: permit I/O to vmalloc/vmap kernel pages James Bottomley
2009-09-09 15:52 ` [PATCH 6/6] xfs: fix xfs to work with Virtually Indexed architectures James Bottomley
2009-09-09 17:55 ` Christoph Hellwig
2009-09-11 21:57 ` James Bottomley
2009-09-10 0:27 ` Paul Mundt [this message]
2009-09-10 0:32 ` [PATCH 4/6] sh: add mm API for DMA to vmalloc/vmap areas James Bottomley
2009-09-10 6:14 ` [PATCH 0/6] fix xfs by making I/O to vmap/vmalloc areas work Matt Fleming
2009-09-11 21:37 ` James Bottomley
-- strict thread matches above, loose matches on Subject: below --
2009-09-17 23:06 James Bottomley
2009-09-17 23:06 ` [PATCH 1/6] mm: add coherence API for DMA to vmalloc/vmap areas James Bottomley
2009-09-17 23:06 ` [PATCH 2/6] parisc: add mm " James Bottomley
2009-09-17 23:06 ` [PATCH 3/6] arm: " James Bottomley
2009-09-17 23:06 ` [PATCH 4/6] sh: " James Bottomley
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