Commit 5cdb8205 authored by Grant Grundler's avatar Grant Grundler Committed by Kyle McMartin

[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: default avatarGrant Grundler <grundler@parisc-linux.org>
Signed-off-by: default avatarKyle McMartin <kyle@parisc-linux.org>
parent 6ca45a24
...@@ -300,6 +300,13 @@ static void __init setup_bootmem(void) ...@@ -300,6 +300,13 @@ static void __init setup_bootmem(void)
max_pfn = start_pfn + npages; 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) { if ((bootmap_pfn - bootmap_start_pfn) != bootmap_pages) {
printk(KERN_WARNING "WARNING! bootmap sizing is messed up!\n"); printk(KERN_WARNING "WARNING! bootmap sizing is messed up!\n");
BUG(); BUG();
......
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