From: Mike Frysinger <vapier@gentoo.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 1/2] common.h: Introduce DEFINE_CACHE_ALIGN_BUFFER
Date: Fri, 20 Jul 2012 00:01:18 -0400 [thread overview]
Message-ID: <201207200001.19869.vapier@gentoo.org> (raw)
In-Reply-To: <1341716895-31089-1-git-send-email-marex@denx.de>
On Saturday 07 July 2012 23:08:14 Marek Vasut wrote:
> +/*
> + * DEFINE_CACHE_ALIGN_BUFFER() is similar to ALLOC_CACHE_ALIGN_BUFFER, but it's
> + * purpose is to allow allocating aligned buffers outside of function scope.
> + * Usage of this macro shall be avoided or used with extreme care!
> + */
> +#define DEFINE_CACHE_ALIGN_BUFFER(type, name, size) \
> + static char __##name[roundup(size * sizeof(type), ARCH_DMA_MINALIGN)] \
> + __aligned(ARCH_DMA_MINALIGN); \
> + \
> + static type *name = (type *)__##name;
how is this any different from doing:
static __u8 foo[1234] __aligned(ARCH_DMA_MINALIGN);
-mike
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next prev parent reply other threads:[~2012-07-20 4:01 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-08 3:08 [U-Boot] [PATCH 1/2] common.h: Introduce DEFINE_CACHE_ALIGN_BUFFER Marek Vasut
2012-07-08 3:08 ` [U-Boot] [PATCH 2/2] ehci-hcd.c, musb_core, usb.h: Add USB_DMA_MINALIGN define for cache alignment Marek Vasut
2012-07-08 10:04 ` Ilya Yanok
2012-07-08 18:51 ` Marek Vasut
2012-07-08 20:52 ` Tom Rini
2012-07-08 21:36 ` Marek Vasut
2012-07-09 18:37 ` Ilya Yanok
2012-07-10 1:55 ` Marek Vasut
2012-07-14 22:11 ` Ilya Yanok
2012-07-14 22:08 ` Ilya Yanok
2012-07-15 8:07 ` Marek Vasut
2012-07-15 8:55 ` Ilya Yanok
2012-07-15 9:42 ` Marek Vasut
2012-07-08 12:23 ` [U-Boot] [PATCH 1/2] common.h: Introduce DEFINE_CACHE_ALIGN_BUFFER Ilya Yanok
2012-07-08 18:55 ` Marek Vasut
2012-07-20 4:01 ` Mike Frysinger [this message]
2012-07-20 11:31 ` Marek Vasut
2012-07-20 21:47 ` Mike Frysinger
2012-07-20 21:50 ` Tom Rini
2012-07-21 17:22 ` Mike Frysinger
2012-07-23 15:24 ` Tom Rini
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