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2010-08-26x86, iommu: Make all IOMMU's detection routines return a value.Konrad Rzeszutek Wilk
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>
2009-11-10x86: Calgary: Convert detect_calgary() to use iommu_init hookFUJITA Tomonori
This changes detect_calgary() to set init_calgary() to iommu_init hook if detect_calgary() finds the Calgary IOMMU. We can kill the code to check if we found the IOMMU in init_calgary() since detect_calgary() sets init_calgary() only when it found the IOMMU. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Muli Ben-Yehuda <muli@il.ibm.com> Cc: chrisw@sous-sol.org Cc: dwmw2@infradead.org Cc: joerg.roedel@amd.com LKML-Reference: <1257849980-22640-3-git-send-email-fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-23x86: Fix ASM_X86__ header guardsH. Peter Anvin
Change header guards named "ASM_X86__*" to "_ASM_X86_*" since: a. the double underscore is ugly and pointless. b. no leading underscore violates namespace constraints. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-23x86, um: ... and asm-x86 moveAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>