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| author | Franck Bui-Huu <fbuihuu@gmail.com> | 2007-01-10 09:44:05 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2007-02-06 16:53:13 +0000 |
| commit | 6f284a2ce7b8bc49cb8455b1763357897a899abb (patch) | |
| tree | abf59702fad617780f59594aa8939db7ec4c76d6 /init | |
| parent | db84dc61552ae0d198a8133d28b80c3838930ba8 (diff) | |
| download | linux-6f284a2ce7b8bc49cb8455b1763357897a899abb.tar.bz2 | |
[MIPS] FLATMEM: introduce PHYS_OFFSET.
The old code was assuming that min_low_pfn was always 0. This
means that platforms having a big hole at their memory start
paid the price of wasting some memory for the allocation of
unused entries in mem_map[].
This patch prevents this waste.
It introduces PHYS_OFFSET define which is the start of the
physical memory and uses it wherever needed. Specially when
converting physical/virtual addresses into virtual/physical
ones.
Currently all platforms defines PHYS_OFFSET to 0.
Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'init')
0 files changed, 0 insertions, 0 deletions