path: root/arch
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authorLinus Torvalds <torvalds@linux-foundation.org>2019-03-10 12:29:52 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-03-10 12:29:52 -0700
commitbb97be23db2a296c5f8b8b4c40feb0435b068c5e (patch)
treea9155e90b8cc786ddee3e87f962d9efbb2674c89 /arch
parentMerge tag 'dma-mapping-5.1' of git://git.infradead.org/users/hch/dma-mapping (diff)
parentMerge branches 'iommu/fixes', 'arm/msm', 'arm/tegra', 'arm/mediatek', 'x86/vt-d', 'x86/amd', 'hyper-v' and 'core' into next (diff)
Merge tag 'iommu-updates-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU updates from Joerg Roedel: - A big cleanup and optimization patch-set for the Tegra GART driver - Documentation updates and fixes for the IOMMU-API - Support for page request in Intel VT-d scalable mode - Intel VT-d dma_[un]map_resource() support - Updates to the ATS enabling code for PCI (acked by Bjorn) and Intel VT-d to align with the latest version of the ATS spec - Relaxed IRQ source checking in the Intel VT-d driver for some aliased devices, needed for future devices which send IRQ messages from more than on request-ID - IRQ remapping driver for Hyper-V - Patches to make generic IOVA and IO-Page-Table code usable outside of the IOMMU code - Various other small fixes and cleanups * tag 'iommu-updates-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (60 commits) iommu/vt-d: Get domain ID before clear pasid entry iommu/vt-d: Fix NULL pointer reference in intel_svm_bind_mm() iommu/vt-d: Set context field after value initialized iommu/vt-d: Disable ATS support on untrusted devices iommu/mediatek: Fix semicolon code style issue MAINTAINERS: Add Hyper-V IOMMU driver into Hyper-V CORE AND DRIVERS scope iommu/hyper-v: Add Hyper-V stub IOMMU driver x86/Hyper-V: Set x2apic destination mode to physical when x2apic is available PCI/ATS: Add inline to pci_prg_resp_pasid_required() iommu/vt-d: Check identity map for hot-added devices iommu: Fix IOMMU debugfs fallout iommu: Document iommu_ops.is_attach_deferred() iommu: Document iommu_ops.iotlb_sync_map() iommu/vt-d: Enable ATS only if the device uses page aligned address. PCI/ATS: Add pci_ats_page_aligned() interface iommu/vt-d: Fix PRI/PASID dependency issue. PCI/ATS: Add pci_prg_resp_pasid_required() interface. iommu/vt-d: Allow interrupts from the entire bus for aliased devices iommu/vt-d: Add helper to set an IRTE to verify only the bus number iommu: Fix flush_tlb_all typo ...
Diffstat (limited to 'arch')
2 files changed, 18 insertions, 9 deletions
diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
index dcad6d6128cf..8c942e60703e 100644
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -616,17 +616,14 @@
mc: memory-controller@7000f000 {
- compatible = "nvidia,tegra20-mc";
- reg = <0x7000f000 0x024
- 0x7000f03c 0x3c4>;
+ compatible = "nvidia,tegra20-mc-gart";
+ reg = <0x7000f000 0x400 /* controller registers */
+ 0x58000000 0x02000000>; /* GART aperture */
+ clocks = <&tegra_car TEGRA20_CLK_MC>;
+ clock-names = "mc";
interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>;
#reset-cells = <1>;
- };
- iommu@7000f024 {
- compatible = "nvidia,tegra20-gart";
- reg = <0x7000f024 0x00000018 /* controller registers */
- 0x58000000 0x02000000>; /* GART aperture */
+ #iommu-cells = <0>;
memory-controller@7000f400 {
diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
index e81a2db42df7..3fa238a137d2 100644
--- a/arch/x86/kernel/cpu/mshyperv.c
+++ b/arch/x86/kernel/cpu/mshyperv.c
@@ -328,6 +328,18 @@ static void __init ms_hyperv_init_platform(void)
# ifdef CONFIG_SMP
smp_ops.smp_prepare_boot_cpu = hv_smp_prepare_boot_cpu;
# endif
+ /*
+ * Hyper-V doesn't provide irq remapping for IO-APIC. To enable x2apic,
+ * set x2apic destination mode to physcial mode when x2apic is available
+ * and Hyper-V IOMMU driver makes sure cpus assigned with IO-APIC irqs
+ * have 8-bit APIC id.
+ */
+# ifdef CONFIG_X86_X2APIC
+ if (x2apic_supported())
+ x2apic_phys = 1;
+# endif