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| author | Joerg Roedel <joerg.roedel@amd.com> | 2009-05-22 12:44:03 +0200 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2009-05-28 17:56:57 +0200 |
| commit | 2e8b569614b89c9b1b85cba37db36daeeeff744e (patch) | |
| tree | 232e63176fe4c5020678f6a0dad36213f02babef /arch/x86 | |
| parent | 2be69c79e9a46a554fc3ff57d886e65e7a73eb72 (diff) | |
| download | linux-stable-2e8b569614b89c9b1b85cba37db36daeeeff744e.tar.gz linux-stable-2e8b569614b89c9b1b85cba37db36daeeeff744e.tar.bz2 linux-stable-2e8b569614b89c9b1b85cba37db36daeeeff744e.zip | |
amd-iommu: disable device isolation with CONFIG_IOMMU_STRESS
With device isolation disabled we can test better for race conditions in
dma_ops related code.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/amd_iommu_init.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c index b90a78cfdcb8..66941129e9c7 100644 --- a/arch/x86/kernel/amd_iommu_init.c +++ b/arch/x86/kernel/amd_iommu_init.c @@ -124,8 +124,14 @@ u16 amd_iommu_last_bdf; /* largest PCI device id we have LIST_HEAD(amd_iommu_unity_map); /* a list of required unity mappings we find in ACPI */ unsigned amd_iommu_aperture_order = 26; /* size of aperture in power of 2 */ + +#ifdef CONFIG_IOMMU_STRESS +bool amd_iommu_isolate = false; +#else bool amd_iommu_isolate = true; /* if true, device isolation is enabled */ +#endif + bool amd_iommu_unmap_flush; /* if true, flush on every unmap */ LIST_HEAD(amd_iommu_list); /* list of all AMD IOMMUs in the |