diff options
Diffstat (limited to 'arch/i386/kernel')
| -rw-r--r-- | arch/i386/kernel/setup.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c index fa0c69eb937..f3d808451d2 100644 --- a/arch/i386/kernel/setup.c +++ b/arch/i386/kernel/setup.c @@ -1300,7 +1300,7 @@ legacy_init_iomem_resources(struct resource *code_resource, struct resource *dat */ static void __init register_memory(void) { - unsigned long gapstart, gapsize; + unsigned long gapstart, gapsize, round; unsigned long long last; int i; @@ -1345,14 +1345,14 @@ static void __init register_memory(void) } /* - * Start allocating dynamic PCI memory a bit into the gap, - * aligned up to the nearest megabyte. - * - * Question: should we try to pad it up a bit (do something - * like " + (gapsize >> 3)" in there too?). We now have the - * technology. + * See how much we want to round up: start off with + * rounding to the next 1MB area. */ - pci_mem_start = (gapstart + 0xfffff) & ~0xfffff; + round = 0x100000; + while ((gapsize >> 4) > round) + round += round; + /* Fun with two's complement */ + pci_mem_start = (gapstart + round) & -round; printk("Allocating PCI resources starting at %08lx (gap: %08lx:%08lx)\n", pci_mem_start, gapstart, gapsize); |