lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[ARM] 3209/1: Configurable DMA-consistent memory region

Browse Source 
Patch from Kevin Hilman

This patch increase available DMA-consistent memory allocated by dma_coherent_alloc(). The default remains at 2M (defined in asm/memory.h) and each platform has the ability to override in asm/arch-foo/memory.h.

Signed-off-by: Kevin Hilman <kevin@hilman.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Kevin Hilman
2006-01-12 16:12:21 +00:00
committed by Russell King
parent a3e4943686
commit 37134cd55d
2 changed files with 50 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
include/asm-arm/memory.h
View File

@ -25,6 +25,7 @@
#include <linux/config.h>
#include <linux/compiler.h>
#include <asm/arch/memory.h>
#include <asm/sizes.h>
#ifndef TASK_SIZE
/*
@ -47,6 +48,14 @@
#define PAGE_OFFSET UL(0xc0000000)
#endif
/*
* Size of DMA-consistent memory region. Must be multiple of 2M,
* between 2MB and 14MB inclusive.
*/
#ifndef CONSISTENT_DMA_SIZE
#define CONSISTENT_DMA_SIZE SZ_2M
#endif
/*
* Physical vs virtual RAM address space conversion. These are
* private definitions which should NOT be used outside memory.h