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| author | Grant Grundler <grundler@parisc-linux.org> | 2006-01-11 02:47:57 +0100 |
|---|---|---|
| committer | Kyle McMartin <kyle@duet.int.mcmartin.ca> | 2006-01-11 03:52:11 +0100 |
| commit | 5cdb8205e917c09fd1348e4b22e26492e8c45b36 (patch) | |
| tree | 0ad6ed7bba30e60dacd827ae6a8c512dfa5bc141 | |
| parent | [PARISC] Truncate overlapping PAT PDC reported ranges (diff) | |
| download | linux-5cdb8205e917c09fd1348e4b22e26492e8c45b36.tar.xz linux-5cdb8205e917c09fd1348e4b22e26492e8c45b36.zip | |
[PARISC] Fix BLK_BOUNCE_HIGH on parisc by initializing max_low_pfn
max_low_pfn was not being set in arch/parisc/mm/init.c, causing severe
problems whenever anything tried to use BLK_BOUNCE_HIGH. Set it to
max_pfn like other similar architectures do.
Signed-off-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
| -rw-r--r-- | arch/parisc/mm/init.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c index f2e7f13ddeeb..720287d46e55 100644 --- a/arch/parisc/mm/init.c +++ b/arch/parisc/mm/init.c @@ -300,6 +300,13 @@ static void __init setup_bootmem(void) max_pfn = start_pfn + npages; } + /* IOMMU is always used to access "high mem" on those boxes + * that can support enough mem that a PCI device couldn't + * directly DMA to any physical addresses. + * ISA DMA support will need to revisit this. + */ + max_low_pfn = max_pfn; + if ((bootmap_pfn - bootmap_start_pfn) != bootmap_pages) { printk(KERN_WARNING "WARNING! bootmap sizing is messed up!\n"); BUG(); |