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x86: rename iommu_num_pages function to iommu_nr_pages

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This series of patches re-introduces the iommu_num_pages function so that
it can be used by each architecture specific IOMMU implementations.  The
series also changes IOMMU implementations for X86, Alpha, PowerPC and
UltraSparc.  The other implementations are not yet changed because the
modifications required are not obvious and I can't test them on real
hardware.

This patch:

This is a preparation patch for introducing a generic iommu_num_pages function.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Muli Ben-Yehuda <muli@il.ibm.com>
Cc: Dave Airlie <airlied@linux.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Joerg Roedel
2008-10-15 22:02:07 -07:00
committed by Linus Torvalds
parent b418da16dd
commit bdab0ba3d9
4 changed files with 11 additions and 11 deletions
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4
arch/x86/kernel/pci-dma.c
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@@ -125,13 +125,13 @@ void __init pci_iommu_alloc(void)
pci_swiotlb_init();
}
unsigned long iommu_num_pages(unsigned long addr, unsigned long len)
unsigned long iommu_nr_pages(unsigned long addr, unsigned long len)
{
unsigned long size = roundup((addr & ~PAGE_MASK) + len, PAGE_SIZE);
return size >> PAGE_SHIFT;
}
EXPORT_SYMBOL(iommu_num_pages);
EXPORT_SYMBOL(iommu_nr_pages);
#endif
void *dma_generic_alloc_coherent(struct device *dev, size_t size,