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| author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2010-08-26 19:57:57 +0200 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2010-08-27 00:13:13 +0200 |
| commit | 480125ba49ba62be93beea37770f266846e077ab (patch) | |
| tree | 6e4437d77e352f5b03d1e00171bd77086378b01a /drivers/pci/proc.c | |
| parent | x86, iommu: Add IOMMU_INIT macros, .iommu_table section, and iommu_table_entr... (diff) | |
| download | linux-480125ba49ba62be93beea37770f266846e077ab.tar.xz linux-480125ba49ba62be93beea37770f266846e077ab.zip | |
x86, iommu: Make all IOMMU's detection routines return a value.
We return 1 if the IOMMU has been detected. Zero or an error number
if we failed to find it. This is in preperation of using the IOMMU_INIT
so that we can detect whether an IOMMU is present. I have not
tested this for regression on Calgary, nor on AMD Vi chipsets as
I don't have that hardware.
CC: Muli Ben-Yehuda <muli@il.ibm.com>
CC: "Jon D. Mason" <jdmason@kudzu.us>
CC: "Darrick J. Wong" <djwong@us.ibm.com>
CC: Jesse Barnes <jbarnes@virtuousgeek.org>
CC: David Woodhouse <David.Woodhouse@intel.com>
CC: Chris Wright <chrisw@sous-sol.org>
CC: Yinghai Lu <yinghai@kernel.org>
CC: Joerg Roedel <joerg.roedel@amd.com>
CC: H. Peter Anvin <hpa@zytor.com>
CC: Fujita Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
LKML-Reference: <1282845485-8991-3-git-send-email-konrad.wilk@oracle.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'drivers/pci/proc.c')
0 files changed, 0 insertions, 0 deletions