diff options
| author | Muli Ben-Yehuda <muli@il.ibm.com> | 2007-07-21 17:11:01 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-21 18:37:11 -0700 |
| commit | e8f204147149e48d72e9c1e321ee72452169e34a (patch) | |
| tree | 3797066c2375a59125fc03b95279293845ba43b3 | |
| parent | 8bcf77055cc88228263f936b2ecf69c017906cb2 (diff) | |
x86_64: only reserve the first 1MB of IO space for CalIOC2
Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | arch/x86_64/kernel/pci-calgary.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86_64/kernel/pci-calgary.c b/arch/x86_64/kernel/pci-calgary.c index 22c2d6250bff..6b76e2fc9249 100644 --- a/arch/x86_64/kernel/pci-calgary.c +++ b/arch/x86_64/kernel/pci-calgary.c @@ -806,13 +806,13 @@ static void __init calgary_reserve_regions(struct pci_dev *dev) iommu_range_reserve(tbl, bad_dma_address, EMERGENCY_PAGES); /* avoid the BIOS/VGA first 640KB-1MB region */ - /* for CalIOC2 - avoid the entire first 2MB */ + /* for CalIOC2 - avoid the entire first MB */ if (is_calgary(dev->device)) { start = (640 * 1024); npages = ((1024 - 640) * 1024) >> PAGE_SHIFT; } else { /* calioc2 */ start = 0; - npages = (2 * 1024 * 1024) >> PAGE_SHIFT; + npages = (1 * 1024 * 1024) >> PAGE_SHIFT; } iommu_range_reserve(tbl, start, npages); |