diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iommu/Kconfig | 49 | ||||
| -rw-r--r-- | drivers/iommu/Makefile | 2 | ||||
| -rw-r--r-- | drivers/iommu/dmar.c (renamed from drivers/pci/dmar.c) | 0 | ||||
| -rw-r--r-- | drivers/iommu/intel-iommu.c (renamed from drivers/pci/intel-iommu.c) | 1 | ||||
| -rw-r--r-- | drivers/iommu/intr_remapping.c (renamed from drivers/pci/intr_remapping.c) | 1 | ||||
| -rw-r--r-- | drivers/iommu/intr_remapping.h (renamed from drivers/pci/intr_remapping.h) | 0 | ||||
| -rw-r--r-- | drivers/iommu/iova.c (renamed from drivers/pci/iova.c) | 0 | ||||
| -rw-r--r-- | drivers/pci/Makefile | 5 | ||||
| -rw-r--r-- | drivers/pci/pci.h | 2 |
9 files changed, 51 insertions, 9 deletions
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index 9246c5b..e2a5f14 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -46,3 +46,52 @@ config AMD_IOMMU_STATS statistics about whats happening in the driver and exports that information to userspace via debugfs. If unsure, say N. + +# Intel IOMMU support +config DMAR + bool "Support for DMA Remapping Devices" + depends on PCI_MSI && ACPI && (X86 || IA64_GENERIC) + select IOMMU_API + help + DMA remapping (DMAR) devices support enables independent address + translations for Direct Memory Access (DMA) from devices. + These DMA remapping devices are reported via ACPI tables + and include PCI device scope covered by these DMA + remapping devices. + +config DMAR_DEFAULT_ON + def_bool y + prompt "Enable DMA Remapping Devices by default" + depends on DMAR + help + Selecting this option will enable a DMAR device at boot time if + one is found. If this option is not selected, DMAR support can + be enabled by passing intel_iommu=on to the kernel. + +config DMAR_BROKEN_GFX_WA + bool "Workaround broken graphics drivers (going away soon)" + depends on DMAR && BROKEN && X86 + ---help--- + Current Graphics drivers tend to use physical address + for DMA and avoid using DMA APIs. Setting this config + option permits the IOMMU driver to set a unity map for + all the OS-visible memory. Hence the driver can continue + to use physical addresses for DMA, at least until this + option is removed in the 2.6.32 kernel. + +config DMAR_FLOPPY_WA + def_bool y + depends on DMAR && X86 + ---help--- + Floppy disk drivers are known to bypass DMA API calls + thereby failing to work when IOMMU is enabled. This + workaround will setup a 1:1 mapping for the first + 16MiB to make floppy (an ISA device) work. + +config INTR_REMAP + bool "Support for Interrupt Remapping (EXPERIMENTAL)" + depends on X86_64 && X86_IO_APIC && PCI_MSI && ACPI && EXPERIMENTAL + ---help--- + Supports Interrupt remapping for IO-APIC and MSI devices. + To use x2apic mode in the CPU's which support x2APIC enhancements or + to support platforms with CPU's having > 8 bit APIC ID, say Y. diff --git a/drivers/iommu/Makefile b/drivers/iommu/Makefile index 4237eaf..49e9c0f 100644 --- a/drivers/iommu/Makefile +++ b/drivers/iommu/Makefile @@ -1,3 +1,5 @@ obj-$(CONFIG_IOMMU_API) += iommu.o obj-$(CONFIG_MSM_IOMMU) += msm_iommu.o msm_iommu_dev.o obj-$(CONFIG_AMD_IOMMU) += amd_iommu.o +obj-$(CONFIG_DMAR) += dmar.o iova.o intel-iommu.o +obj-$(CONFIG_INTR_REMAP) += dmar.o intr_remapping.o diff --git a/drivers/pci/dmar.c b/drivers/iommu/dmar.c index 3dc9bef..3dc9bef 100644 --- a/drivers/pci/dmar.c +++ b/drivers/iommu/dmar.c diff --git a/drivers/pci/intel-iommu.c b/drivers/iommu/intel-iommu.c index f02c34d..c621c98 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -42,7 +42,6 @@ #include <linux/pci-ats.h> #include <asm/cacheflush.h> #include <asm/iommu.h> -#include "pci.h" #define ROOT_SIZE VTD_PAGE_SIZE #define CONTEXT_SIZE VTD_PAGE_SIZE diff --git a/drivers/pci/intr_remapping.c b/drivers/iommu/intr_remapping.c index 3607faf..1a89d4a 100644 --- a/drivers/pci/intr_remapping.c +++ b/drivers/iommu/intr_remapping.c @@ -13,7 +13,6 @@ #include "intr_remapping.h" #include <acpi/acpi.h> #include <asm/pci-direct.h> -#include "pci.h" static struct ioapic_scope ir_ioapic[MAX_IO_APICS]; static struct hpet_scope ir_hpet[MAX_HPET_TBS]; diff --git a/drivers/pci/intr_remapping.h b/drivers/iommu/intr_remapping.h index 5662fec..5662fec 100644 --- a/drivers/pci/intr_remapping.h +++ b/drivers/iommu/intr_remapping.h diff --git a/drivers/pci/iova.c b/drivers/iommu/iova.c index c5c274a..c5c274a 100644 --- a/drivers/pci/iova.c +++ b/drivers/iommu/iova.c diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile index 094308e..825c02b 100644 --- a/drivers/pci/Makefile +++ b/drivers/pci/Makefile @@ -29,11 +29,6 @@ obj-$(CONFIG_PCI_MSI) += msi.o # Build the Hypertransport interrupt support obj-$(CONFIG_HT_IRQ) += htirq.o -# Build Intel IOMMU support -obj-$(CONFIG_DMAR) += dmar.o iova.o intel-iommu.o - -obj-$(CONFIG_INTR_REMAP) += dmar.o intr_remapping.o - obj-$(CONFIG_PCI_IOV) += iov.o # diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 731e202..b7bf11dd 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -184,8 +184,6 @@ pci_match_one_device(const struct pci_device_id *id, const struct pci_dev *dev) return NULL; } -struct pci_dev *pci_find_upstream_pcie_bridge(struct pci_dev *pdev); - /* PCI slot sysfs helper code */ #define to_pci_slot(s) container_of(s, struct pci_slot, kobj) |
