summaryrefslogtreecommitdiffstats
path: root/arch/x86
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2012-07-25 01:24:11 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2012-07-25 01:24:11 +0200
commit97027da6adf2e24a4e8d3d9c0668da3006b29971 (patch)
tree7da3aa43a9e8c9be0a408b814e6f0d3106c55d66 /arch/x86
parentMerge tag 'for-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci (diff)
parentMerge branches 'iommu/fixes', 'x86/amd', 'groups', 'arm/tegra' and 'api/domai... (diff)
downloadlinux-97027da6adf2e24a4e8d3d9c0668da3006b29971.tar.xz
linux-97027da6adf2e24a4e8d3d9c0668da3006b29971.zip
Merge tag 'iommu-updates-v3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU updates from Joerg Roedel: "The most important part of these updates is the IOMMU groups code enhancement written by Alex Williamson. It abstracts the problem that a given hardware IOMMU can't isolate any given device from any other device (e.g. 32 bit PCI devices can't usually be isolated). Devices that can't be isolated are grouped together. This code is required for the upcoming VFIO framework. Another IOMMU-API change written by me is the introduction of domain attributes. This makes it easier to handle GART-like IOMMUs with the IOMMU-API because now the start-address and the size of the domain address space can be queried. Besides that there are a few cleanups and fixes for the NVidia Tegra IOMMU drivers and the reworked init-code for the AMD IOMMU. The latter is from my patch-set to support interrupt remapping. The rest of this patch-set requires x86 changes which are not mergabe yet. So full support for interrupt remapping with AMD IOMMUs will come in a future merge window." * tag 'iommu-updates-v3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (33 commits) iommu/amd: Fix hotplug with iommu=pt iommu/amd: Add missing spin_lock initialization iommu/amd: Convert iommu initialization to state machine iommu/amd: Introduce amd_iommu_init_dma routine iommu/amd: Move unmap_flush message to amd_iommu_init_dma_ops() iommu/amd: Split enable_iommus() routine iommu/amd: Introduce early_amd_iommu_init routine iommu/amd: Move informational prinks out of iommu_enable iommu/amd: Split out PCI related parts of IOMMU initialization iommu/amd: Use acpi_get_table instead of acpi_table_parse iommu/amd: Fix sparse warnings iommu/tegra: Don't call alloc_pdir with as->lock iommu/tegra: smmu: Fix unsleepable memory allocation at alloc_pdir() iommu/tegra: smmu: Remove unnecessary sanity check at alloc_pdir() iommu/exynos: Implement DOMAIN_ATTR_GEOMETRY attribute iommu/tegra: Implement DOMAIN_ATTR_GEOMETRY attribute iommu/msm: Implement DOMAIN_ATTR_GEOMETRY attribute iommu/omap: Implement DOMAIN_ATTR_GEOMETRY attribute iommu/vt-d: Implement DOMAIN_ATTR_GEOMETRY attribute iommu/amd: Implement DOMAIN_ATTR_GEOMETRY attribute ...
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/include/asm/iommu.h1
-rw-r--r--arch/x86/kernel/pci-dma.c11
2 files changed, 0 insertions, 12 deletions
diff --git a/arch/x86/include/asm/iommu.h b/arch/x86/include/asm/iommu.h
index dffc38ee6255..345c99cef152 100644
--- a/arch/x86/include/asm/iommu.h
+++ b/arch/x86/include/asm/iommu.h
@@ -5,7 +5,6 @@ extern struct dma_map_ops nommu_dma_ops;
extern int force_iommu, no_iommu;
extern int iommu_detected;
extern int iommu_pass_through;
-extern int iommu_group_mf;
/* 10 seconds */
#define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000)
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index c0f420f76cd3..de2b7ad70273 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);