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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2005-11-17 22:43:30 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-11-17 22:43:30 +0000
commit02b30839220fa3ef80a34ed6ee174fa2d9937eac (patch)
treefaac60850e1e51b892622887c9f7cc37e2891e5e /Documentation
parent67a1901ff498363e253b90ba132e336c925203ed (diff)
downloadop-kernel-dev-02b30839220fa3ef80a34ed6ee174fa2d9937eac.zip
op-kernel-dev-02b30839220fa3ef80a34ed6ee174fa2d9937eac.tar.gz
[ARM] Fix some corner cases in new mm initialisation
Document that the VMALLOC_END address must be aligned to 2MB since it must align with a PGD boundary. Allocate the vectors page early so that the flush_cache_all() later will cause any dirty cache lines in the direct mapping will be safely written back. Move the flush_cache_all() to the second local_flush_cache_tlb() and remove the now redundant first local_flush_cache_tlb(). Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/arm/memory.txt4
1 files changed, 3 insertions, 1 deletions
diff --git a/Documentation/arm/memory.txt b/Documentation/arm/memory.txt
index 4b1c93a..dc60455 100644
--- a/Documentation/arm/memory.txt
+++ b/Documentation/arm/memory.txt
@@ -1,7 +1,7 @@
Kernel Memory Layout on ARM Linux
Russell King <rmk@arm.linux.org.uk>
- May 21, 2004 (2.6.6)
+ November 17, 2005 (2.6.15)
This document describes the virtual memory layout which the Linux
kernel uses for ARM processors. It indicates which regions are
@@ -37,6 +37,8 @@ ff000000 ffbfffff Reserved for future expansion of DMA
mapping region.
VMALLOC_END feffffff Free for platform use, recommended.
+ VMALLOC_END must be aligned to a 2MB
+ boundary.
VMALLOC_START VMALLOC_END-1 vmalloc() / ioremap() space.
Memory returned by vmalloc/ioremap will
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