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(parent: dff4a39) | patch
powerpc/eeh: Fetch IOMMU table in reliable way
authorGavin Shan <gwshan@linux.vnet.ibm.com>
Tue, 15 Jul 2014 07:00:56 +0000 (17:00 +1000)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Tue, 5 Aug 2014 05:41:16 +0000 (15:41 +1000)
commita3032ca9f82a588f72130e94b68517b41af31f11
treee2a77208baa48efd329b0e2b5a5b1f23607534fdtree | snapshot (tar.gz zip)
parentdff4a39e880062b358be2f08de878a49425036c4commit | diff
powerpc/eeh: Fetch IOMMU table in reliable way

Function eeh_iommu_group_to_pe() iterates each PCI device to check
the binding IOMMU group with get_iommu_table_base(), which possibly
fetches pdev->dev.archdata.dma_data.dma_offset. It's (0x1 << 59)
for "bypass" cases.

The patch fixes the issue by iterating devices hooked to the IOMMU
group and fetch IOMMU table there.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
arch/powerpc/kernel/eeh.c diff | blob | blame | history