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authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>2009-12-28 18:11:56 +0900
committerIngo Molnar <mingo@elte.hu>2009-12-30 11:52:04 +0100
commitf405d2c02395a74d3883bd03ded36457aa3697ad (patch)
treefb99279e64191fb9276a1f8b5c0ad90b65913d39 /lib/dma-debug.c
parent39d30770992895d55789de64bad2349510af68d0 (diff)
downloadop-kernel-dev-f405d2c02395a74d3883bd03ded36457aa3697ad.zip
op-kernel-dev-f405d2c02395a74d3883bd03ded36457aa3697ad.tar.gz
x86/agp: Fix agp_amd64_init() initialization with CONFIG_GART_IOMMU enabled
with CONFIG_GART_IOMMU enabled drivers/char/agp/amd64-agp.c has: #ifndef CONFIG_GART_IOMMU module_init(agp_amd64_init); module_exit(agp_amd64_cleanup); #endif agp_amd64_init() was called via gart_iommu_init with CONFIG_GART_IOMMU=y agp_amd64_init() was called via module_init with CONFIG_GART_IOMMU=n The commit 75f1cdf1dda92cae037ec848ae63690d91913eac changes the x86 dma initialization routine: gart_iommu_init() is called only when GART IOMMU is detected. So when GART IOMMU isn't detected, agp_amd64_init isn't called. Marin Mitov reported this issue: http://marc.info/?l=linux-kernel&m=126192729110083&w=2 With this patch, agp_amd64_init() is always called via module_init (the above ifndef is removed). If agp_amd64_init() is called via gart_iommu_init() earlier, agp_amd64_init() finishes without doing anything (when it is called via module_init). Reported-by: Marin Mitov <mitov@issp.bas.bg> Tested-by: Marin Mitov <mitov@issp.bas.bg> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: davej@redhat.com LKML-Reference: <20091228181118C.fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'lib/dma-debug.c')
0 files changed, 0 insertions, 0 deletions
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