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[ARM] Fix some corner cases in new mm initialisation

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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>
This commit is contained in:
Russell King
2005-11-17 22:43:30 +00:00
committed by Russell King
parent 67a1901ff4
commit 02b3083922
2 changed files with 16 additions and 12 deletions
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Documentation/arm/memory.txt
+3 -1
View File
@@ -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