arm64: Determine the vmalloc/vmemmap space at build time based on VA_BITS

Browse source

Rather than guessing what the maximum vmmemap space should be, this
patch allows the calculation based on the VA_BITS and sizeof(struct
page). The vmalloc space extends to the beginning of the vmemmap space.

Since the virtual kernel memory layout now depends on the build
configuration, this patch removes the detailed description in
Documentation/arm64/memory.txt in favour of information printed during
kernel booting.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Jungseok Lee <jungseoklee85@gmail.com>

...

This commit is contained in:

Catalin Marinas 2014-07-16 17:42:43 +01:00

parent b4a0d8b377

commit 08375198b0

3 changed files with 38 additions and 95 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

98

Documentation/arm64/memory.txt

View file

13

arch/arm64/include/asm/pgtable.h

View file

22

arch/arm64/mm/init.c

View file