diff options
| author | Alex Williamson <alex.williamson@redhat.com> | 2012-05-30 14:19:55 -0600 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2012-06-25 13:48:30 +0200 |
| commit | 7d43c2e42cb1e436f97c1763150e4e1122ae0d57 (patch) | |
| tree | 6079999184585e6a556f06087aaabc89d1b0939c /arch/x86/kernel/pci-dma.c | |
| parent | 783f157bc5a7fa30ee17b4099b27146bd1b68af4 (diff) | |
iommu: Remove group_mf
The iommu=group_mf is really no longer needed with the addition of ACS
support in IOMMU drivers creating groups. Most multifunction devices
will now be grouped already. If a device has gone to the trouble of
exposing ACS, trust that it works. We can use the device specific ACS
function for fixing devices we trust individually. This largely
reverts bcb71abe.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'arch/x86/kernel/pci-dma.c')
| -rw-r--r-- | arch/x86/kernel/pci-dma.c | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c index c0f420f76cd..de2b7ad7027 100644 --- a/arch/x86/kernel/pci-dma.c +++ b/arch/x86/kernel/pci-dma.c @@ -45,15 +45,6 @@ int iommu_detected __read_mostly = 0; */ int iommu_pass_through __read_mostly; -/* - * Group multi-function PCI devices into a single device-group for the - * iommu_device_group interface. This tells the iommu driver to pretend - * it cannot distinguish between functions of a device, exposing only one - * group for the device. Useful for disallowing use of individual PCI - * functions from userspace drivers. - */ -int iommu_group_mf __read_mostly; - extern struct iommu_table_entry __iommu_table[], __iommu_table_end[]; /* Dummy device used for NULL arguments (normally ISA). */ @@ -194,8 +185,6 @@ static __init int iommu_setup(char *p) #endif if (!strncmp(p, "pt", 2)) iommu_pass_through = 1; - if (!strncmp(p, "group_mf", 8)) - iommu_group_mf = 1; gart_parse_options(p); |