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[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>
This commit is contained in:
Grant Grundler 2006-01-10 20:47:57 -05:00 committed by Kyle McMartin
parent 6ca45a24cc
commit 5cdb8205e9
1 changed files with 7 additions and 0 deletions
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7
arch/parisc/mm/init.c
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@ -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();