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| author | Geert Uytterhoeven <geert@linux-m68k.org> | 2015-11-15 11:46:55 +0100 |
|---|---|---|
| committer | Geert Uytterhoeven <geert@linux-m68k.org> | 2015-11-22 11:35:25 +0100 |
| commit | b66f55cdba5559dedd295356bb5138c5ceadb694 (patch) | |
| tree | cb11fab5ae087552d4aaf4f9602777247750f241 /arch/m68k | |
| parent | m68k/mm: sun3 - Add missing initialization of max_pfn and {min,max}_low_pfn (diff) | |
| download | linux-b66f55cdba5559dedd295356bb5138c5ceadb694.tar.xz linux-b66f55cdba5559dedd295356bb5138c5ceadb694.zip | |
m68knommu: Add missing initialization of max_pfn and {min,max}_low_pfn
If max_pfn is not initialized, the block layer may use wrong DMA masks.
Replace open-coded shifts by PFN_DOWN(), and drop the "0 on coldfire"
comment, as it is not even true on all Coldfires, let alone all
m68knommu platforms.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Tested-By: Greg Ungerer <gerg@uclinux.org>
Diffstat (limited to 'arch/m68k')
| -rw-r--r-- | arch/m68k/kernel/setup_no.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/m68k/kernel/setup_no.c b/arch/m68k/kernel/setup_no.c index 88c27d94a721..76b9113f3092 100644 --- a/arch/m68k/kernel/setup_no.c +++ b/arch/m68k/kernel/setup_no.c @@ -238,11 +238,14 @@ void __init setup_arch(char **cmdline_p) * Give all the memory to the bootmap allocator, tell it to put the * boot mem_map at the start of memory. */ + min_low_pfn = PFN_DOWN(memory_start); + max_pfn = max_low_pfn = PFN_DOWN(memory_end); + bootmap_size = init_bootmem_node( NODE_DATA(0), - memory_start >> PAGE_SHIFT, /* map goes here */ - PAGE_OFFSET >> PAGE_SHIFT, /* 0 on coldfire */ - memory_end >> PAGE_SHIFT); + min_low_pfn, /* map goes here */ + PFN_DOWN(PAGE_OFFSET), + max_pfn); /* * Free the usable memory, we have to make sure we do not free * the bootmem bitmap so we then reserve it after freeing it :-) |