提交 a7bd08c8 编写于 作者: F Fenkart/Bostandzhyan 提交者: Russell King

ARM: 5927/1: Make delimiters of DMA area globally visibly.

Adds DMA area to 'virtual memory map' startup message
Tested-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NAndreas Fenkart <andreas.fenkart@streamunlimited.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
上级 db9ef1af
......@@ -76,6 +76,17 @@
*/
#define IOREMAP_MAX_ORDER 24
/*
* 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
#define CONSISTENT_END (0xffe00000UL)
#define CONSISTENT_BASE (CONSISTENT_END - CONSISTENT_DMA_SIZE)
#else /* CONFIG_MMU */
/*
......@@ -112,14 +123,6 @@
#endif /* !CONFIG_MMU */
/*
* 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
......
......@@ -29,9 +29,6 @@
#error "CONSISTENT_DMA_SIZE must be multiple of 2MiB"
#endif
#define CONSISTENT_END (0xffe00000)
#define CONSISTENT_BASE (CONSISTENT_END - CONSISTENT_DMA_SIZE)
#define CONSISTENT_OFFSET(x) (((unsigned long)(x) - CONSISTENT_BASE) >> PAGE_SHIFT)
#define CONSISTENT_PTE_INDEX(x) (((unsigned long)(x) - CONSISTENT_BASE) >> PGDIR_SHIFT)
#define NUM_CONSISTENT_PTES (CONSISTENT_DMA_SIZE >> PGDIR_SHIFT)
......
......@@ -651,6 +651,9 @@ void __init mem_init(void)
printk(KERN_NOTICE "Virtual kernel memory layout:\n"
" vector : 0x%08lx - 0x%08lx (%4ld kB)\n"
" fixmap : 0x%08lx - 0x%08lx (%4ld kB)\n"
#ifdef CONFIG_MMU
" DMA : 0x%08lx - 0x%08lx (%4ld MB)\n"
#endif
" vmalloc : 0x%08lx - 0x%08lx (%4ld MB)\n"
" lowmem : 0x%08lx - 0x%08lx (%4ld MB)\n"
#ifdef CONFIG_HIGHMEM
......@@ -664,6 +667,9 @@ void __init mem_init(void)
MLK(UL(CONFIG_VECTORS_BASE), UL(CONFIG_VECTORS_BASE) +
(PAGE_SIZE)),
MLK(FIXADDR_START, FIXADDR_TOP),
#ifdef CONFIG_MMU
MLM(CONSISTENT_BASE, CONSISTENT_END),
#endif
MLM(VMALLOC_START, (unsigned long)VMALLOC_END),
MLM(PAGE_OFFSET, (unsigned long)high_memory),
#ifdef CONFIG_HIGHMEM
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册