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2015-04-02Merge branches 'iommu/fixes', 'x86/vt-d', 'x86/amd', 'arm/smmu', 'arm/tegra' ↵Joerg Roedel146-1127/+1927
and 'core' into next Conflicts: drivers/iommu/amd_iommu.c drivers/iommu/tegra-gart.c drivers/iommu/tegra-smmu.c
2015-04-02iommu/amd: Correctly encode huge pages in iommu page tablesJoerg Roedel1-5/+6
When a default page-size for given level should be mapped, the level encoding must be 0 rather than 7. This fixes an issue seen on IOMMUv2 hardware, where this encoding is enforced. Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-04-02iommu/amd: Optimize amd_iommu_iova_to_phys for new fetch_pte interfaceJoerg Roedel1-9/+3
Now that fetch_pte returns the page-size of the pte, this function can be optimized too. Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-04-02iommu/amd: Optimize alloc_new_range for new fetch_pte interfaceJoerg Roedel1-4/+4
Now that fetch_pte returns the page-size of the pte, the call in this function can also be optimized a little bit. Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-04-02iommu/amd: Optimize iommu_unmap_page for new fetch_pte interfaceJoerg Roedel1-24/+8
Now that fetch_pte returns the page-size of the pte, this function can be optimized a lot. Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-04-02iommu/amd: Return the pte page-size in fetch_pteJoerg Roedel2-22/+36
Extend the fetch_pte function to also return the page-size that is mapped by the returned pte. Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-04-02iommu/amd: Add support for contiguous dma allocatorJoerg Roedel1-16/+28
Add code to allocate memory from the contiguous memory allocator to support coherent allocations larger than 8MB. Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-04-02iommu/amd: Don't allocate with __GFP_ZERO in alloc_coherentJoerg Roedel1-1/+0
Don't explicitly add __GFP_ZERO to the allocator flags. Leave this up to the caller. Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-04-02iommu/amd: Ignore BUS_NOTIFY_UNBOUND_DRIVER eventJoerg Roedel1-10/+0
Detaching a device from its domain at this event is problematic for several reasons: * The device might me in an alias group and detaching it will also detach all other devices in the group. This removes valid DMA mappings from the other devices causing io-page-faults and lets these devices fail. * Devices might have unity mappings specified by the IVRS table. These mappings are required for the device even when no device driver is attached. Detaching the device from its domain in driver unbind will also remove these unity mappings. This patch removes the handling of the BUS_NOTIFY_UNBOUND_DRIVER event to prevent these issues and align it better with the behavior of the VT-d driver. Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-04-02iommu/amd: Use BUS_NOTIFY_REMOVED_DEVICEJoerg Roedel1-1/+1
Use the new device-notifier event instead of the old BUS_NOTIFY_DEL_DEVICE to make sure the device driver had a chance to uninit the device before all its mappings are teared down. Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-03-31iommu/tegra: smmu: Compute PFN mask at runtimeThierry Reding1-5/+10
The SMMU on Tegra30 and Tegra114 supports addressing up to 4 GiB of physical memory. On Tegra124 the addressable physical memory was extended to 16 GiB. The page frame number stored in PTEs therefore requires 20 or 22 bits, depending on SoC generation. In order to cope with this, compute the proper value at runtime. Reported-by: Joseph Lo <josephl@nvidia.com> Cc: Hiroshi Doyu <hdoyu@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-03-31iommu/tegra: gart: Set aperture at domain initialization timeThierry Reding1-11/+14
The aperture of the domain should always be available, otherwise drivers need to attach first before they can use the aperture geometry. Cc: Hiroshi Doyu <hdoyu@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-03-31iommu/tegra: Setup apertureThierry Reding1-0/+5
Each address space in the Tegra SMMU provides 4 GiB worth of addresses. Cc: Hiroshi Doyu <hdoyu@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-03-31Merge branch 'for-joerg/arm-smmu/updates' of ↵Joerg Roedel2-45/+85
git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into arm/smmu
2015-03-31iommu: Remove domain_init and domain_free iommu_opsJoerg Roedel2-31/+2
All drivers have been converted to the new domain_alloc and domain_free iommu-ops. So remove the old ones and get rid of iommu_domain->priv too, as this is no longer needed when the struct iommu_domain is embedded in the private structures of the iommu drivers. Tested-by: Thierry Reding <treding@nvidia.com> Tested-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Alex Williamson <alex.williamson@redhat.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-03-31iommu/fsl: Make use of domain_alloc and domain_freeJoerg Roedel2-29/+33
Implement domain_alloc and domain_free iommu-ops as a replacement for domain_init/domain_destroy. Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-03-31iommu/rockchip: Make use of domain_alloc and domain_freeJoerg Roedel1-16/+24
Implement domain_alloc and domain_free iommu-ops as a replacement for domain_init/domain_destroy. Tested-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-03-31iommu/ipmmu-vmsa: Make use of domain_alloc and domain_freeJoerg Roedel1-18/+23
Implement domain_alloc and domain_free iommu-ops as a replacement for domain_init/domain_destroy. Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-03-31iommu/shmobile: Make use of domain_alloc and domain_freeJoerg Roedel1-16/+23
Implement domain_alloc and domain_free iommu-ops as a replacement for domain_init/domain_destroy. Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-03-31iommu/msm: Make use of domain_alloc and domain_freeJoerg Roedel1-37/+36
Implement domain_alloc and domain_free iommu-ops as a replacement for domain_init/domain_destroy. Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-03-31iommu/tegra-gart: Make use of domain_alloc and domain_freeJoerg Roedel1-21/+46
Implement domain_alloc and domain_free iommu-ops as a replacement for domain_init/domain_destroy. Tested-by: Thierry Reding <treding@nvidia.com> Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-03-31iommu/tegra-smmu: Make use of domain_alloc and domain_freeJoerg Roedel1-18/+23
Implement domain_alloc and domain_free iommu-ops as a replacement for domain_init/domain_destroy. Tested-by: Thierry Reding <treding@nvidia.com> Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-03-31iommu/exynos: Make use of domain_alloc and domain_freeJoerg Roedel1-40/+47
Implement domain_alloc and domain_free iommu-ops as a replacement for domain_init/domain_destroy. Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-03-31iommu/arm-smmu: Make use of domain_alloc and domain_freeJoerg Roedel1-19/+27
Implement domain_alloc and domain_free iommu-ops as a replacement for domain_init/domain_destroy. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-03-31iommu/omap: Make use of domain_alloc and domain_freeJoerg Roedel1-20/+29
Implement the new domain_alloc and domain_free call-backs and remove the old domain_init/destroy ones. Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-03-31iommu/vt-d: Make use of domain_alloc and domain_freeJoerg Roedel1-20/+28
Get rid of domain_init and domain_destroy and implement domain_alloc/domain_free instead. Reviewed-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-03-31iommu/amd: Make use of domain_alloc and domain_freeJoerg Roedel2-43/+48
Implement the new iommu-ops function pointers and remove the obsolete domain_init and domain_destroy functions. Reviewed-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-03-31iommu: Only allow iommu_map/unmap for paging domainsJoerg Roedel1-0/+6
Check for the new __IOMMU_DOMAIN_PAGING flag before calling into the iommu drivers ->map and ->unmap call-backs. Tested-by: Thierry Reding <treding@nvidia.com> Tested-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Alex Williamson <alex.williamson@redhat.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-03-31iommu: Introduce iommu domain typesJoerg Roedel2-3/+29
This allows to handle domains differently based on their type in the future. An IOMMU driver can implement certain optimizations for DMA-API domains for example. The domain types can be extended later and some of the existing domain attributes can be migrated to become domain flags. Tested-by: Thierry Reding <treding@nvidia.com> Tested-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Alex Williamson <alex.williamson@redhat.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-03-31iommu: Introduce domain_alloc and domain_free iommu_opsJoerg Roedel2-8/+26
These new call-backs defer the allocation and destruction of 'struct iommu_domain' to the iommu driver. This allows drivers to embed this struct into their private domain structures and to get rid of the domain_init and domain_destroy call-backs when all drivers have been converted. Tested-by: Thierry Reding <treding@nvidia.com> Tested-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Alex Williamson <alex.williamson@redhat.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-03-30Linux 4.0-rc6v4.0-rc6Linus Torvalds1-1/+1
2015-03-30Merge tag 'armsoc-for-linus' of ↵Linus Torvalds18-85/+128
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Olof Johansson: "The latest and greatest fixes for ARM platform code. Worth pointing out are: - Lines-wise, largest is a PXA fix for dealing with interrupts on DT that was quite broken. It's still newish code so while we could have held this off, it seemed appropriate to include now - Some GPIO fixes for OMAP platforms added a few lines. This was also fixes for code recently added (this release). - Small OMAP timer fix to behave better with partially upstreamed platforms, which is quite welcome. - Allwinner fixes about operating point control, reducing overclocking in some cases for better stability. plus a handful of other smaller fixes across the map" * tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: arm64: juno: Fix misleading name of UART reference clock ARM: dts: sunxi: Remove overclocked/overvoltaged OPP ARM: dts: sun4i: a10-lime: Override and remove 1008MHz OPP setting ARM: socfpga: dts: fix spi1 interrupt ARM: dts: Fix gpio interrupts for dm816x ARM: dts: dra7: remove ti,hwmod property from pcie phy ARM: OMAP: dmtimer: disable pm runtime on remove ARM: OMAP: dmtimer: check for pm_runtime_get_sync() failure ARM: OMAP2+: Fix socbus family info for AM33xx devices ARM: dts: omap3: Add missing dmas for crypto ARM: dts: rockchip: disable gmac by default in rk3288.dtsi MAINTAINERS: add rockchip regexp to the ARM/Rockchip entry ARM: pxa: fix pxa interrupts handling in DT ARM: pxa: Fix typo in zeus.c ARM: sunxi: Have ARCH_SUNXI select RESET_CONTROLLER for clock driver usage
2015-03-30Merge tag 'sunxi-fixes-for-4.0' of ↵Olof Johansson5-12/+21
https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into fixes Allwinner fixes for 4.0 There's a few fixes to merge for 4.0, one to add a select in the machine Kconfig option to fix a potential build failure, and two fixing cpufreq related issues. * tag 'sunxi-fixes-for-4.0' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux: ARM: dts: sunxi: Remove overclocked/overvoltaged OPP ARM: dts: sun4i: a10-lime: Override and remove 1008MHz OPP setting ARM: sunxi: Have ARCH_SUNXI select RESET_CONTROLLER for clock driver usage Signed-off-by: Olof Johansson <olof@lixom.net>
2015-03-29Merge tag 'fixes-v4.0-rc4' of ↵Olof Johansson6-7/+53
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes Fixes for omaps for the -rc cycle: - Fix a device tree based booting vs legacy booting regression for omap3 crypto hardware by adding the missing DMA channels. - Fix /sys/bus/soc/devices/soc0/family for am33xx devices. - Fix two timer issues that can cause hangs if the timer related hwmod data is missing like it often initially is for new SoCs. - Remove pcie hwmods entry from dts as that causes runtime PM to fail for the PHYs. - A paper bag type dts configuration fix for dm816x GPIO interrupts that I just noticed. This is most of the changes diffstat wise, but as it's a basic feature for connecting devices and things work otherwise, it should be fixed. * tag 'fixes-v4.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: dts: Fix gpio interrupts for dm816x ARM: dts: dra7: remove ti,hwmod property from pcie phy ARM: OMAP: dmtimer: disable pm runtime on remove ARM: OMAP: dmtimer: check for pm_runtime_get_sync() failure ARM: OMAP2+: Fix socbus family info for AM33xx devices ARM: dts: omap3: Add missing dmas for crypto Signed-off-by: Olof Johansson <olof@lixom.net>
2015-03-29Merge tag 'socfpga_fix_for_v4.0_2' of ↵Olof Johansson1-1/+1
git://git.rocketboards.org/linux-socfpga-next into fixes Late fix for v4.0 on the SoCFPGA platform: - Fix interrupt number for SPI1 interface * tag 'socfpga_fix_for_v4.0_2' of git://git.rocketboards.org/linux-socfpga-next: ARM: socfpga: dts: fix spi1 interrupt Signed-off-by: Olof Johansson <olof@lixom.net>
2015-03-29arm64: juno: Fix misleading name of UART reference clockDave Martin1-1/+1
The UART reference clock speed is 7273.8 kHz, not 72738 kHz. Dots aren't usually used in node names even though ePAPR permits them. However, this can easily be avoided by expressing the frequency in Hz, not kHz. This patch changes the name to refclk7273800hz, reflecting the actual clock speed. Signed-off-by: Dave Martin <Dave.Martin@arm.com> Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-03-29Merge tag 'fixes-for-v4.0-rc5' of https://github.com/rjarzmik/linux into fixesOlof Johansson3-64/+50
arm: pxa: fixes for v4.0-rc5 There are only 2 fixes, one for the zeus board about the regulator changes, where a typo prevented the zeus board from having a working can regulator, and one regression triggered by the interrupts IRQ shift of 16 affecting all boards. * tag 'fixes-for-v4.0-rc5' of https://github.com/rjarzmik/linux: ARM: pxa: fix pxa interrupts handling in DT ARM: pxa: Fix typo in zeus.c Signed-off-by: Olof Johansson <olof@lixom.net>
2015-03-28Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds1-4/+14
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fix from Ingo Molnar: "Fix x86 syscall exit code bug that resulted in spurious non-execution of TIF-driven user-return worklets, causing big trouble for things like KVM that rely on user notifiers for correctness of their vcpu model, causing crashes like double faults" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/asm/entry: Check for syscall exit work with IRQs disabled
2015-03-28Merge branch 'timers-urgent-for-linus' of ↵Linus Torvalds3-9/+12
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fixes from Ingo Molnar: "Two clocksource driver fixes, and an idle loop RCU warning fix" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: clocksource/drivers/sun5i: Fix cpufreq interaction with sched_clock() clocksource/drivers: Fix various !CONFIG_HAS_IOMEM build errors timers/tick/broadcast-hrtimer: Fix suspicious RCU usage in idle loop
2015-03-28Merge branch 'sched-urgent-for-linus' of ↵Linus Torvalds1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fix from Ingo Molnar: "A single sched/rt corner case fix for RLIMIT_RTIME correctness" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched: Fix RLIMIT_RTTIME when PI-boosting to RT
2015-03-28Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds1-0/+10
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fix from Ingo Molnar: "A perf kernel side fix for a fuzzer triggered lockup" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf: Fix irq_work 'tail' recursion
2015-03-28Merge branch 'locking-urgent-for-linus' of ↵Linus Torvalds2-30/+59
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking fix from Ingo Molnar: "A module unload lockdep race fix" * 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: lockdep: Fix the module unload key range freeing logic
2015-03-28Merge branch 'parisc-4.0-1' of ↵Linus Torvalds2-10/+16
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parsic fixes from Helge Deller: "One patch from Mikulas fixes a bug on parisc by artifically incrementing the counter in pmd_free when the kernel tries to free the preallocated pmd. Other than that we now prevent that syscalls gets added without incrementing __NR_Linux_syscalls and fix the initial pmd setup code if a default page size greater than 4k has been selected" * 'parisc-4.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Fix pmd code to depend on PT_NLEVELS value, not on CONFIG_64BIT parisc: mm: don't count preallocated pmds parisc: Add compile-time check when adding new syscalls
2015-03-28Merge git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds2-4/+5
Pull kvm ppc bugfixes from Marcelo Tosatti. * git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: PPC: Book3S HV: Fix instruction emulation KVM: PPC: Book3S HV: Endian fix for accessing VPA yield count KVM: PPC: Book3S HV: Fix spinlock/mutex ordering issue in kvmppc_set_lpcr()
2015-03-28Merge tag 'arc-4.0-fixes-part-2' of ↵Linus Torvalds1-6/+18
git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc Pull ARC fixes from Vineet Gupta: "We found some issues with signal handling taking down the system. I know its late, but these are important and all marked for stable. ARC signal handling related fixes uncovered during recent testing of NPTL tools" * tag 'arc-4.0-fixes-part-2' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: ARC: signal handling robustify ARC: SA_SIGINFO ucontext regs off-by-one
2015-03-28Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull selinux bugfix from James Morris. Fix broken return value. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: selinux: fix sel_write_enforce broken return value
2015-03-28Merge git://www.linux-watchdog.org/linux-watchdogLinus Torvalds2-5/+5
Pull watchdog fixes from Wim Van Sebroeck: - mtk_wdt: signedness bug in mtk_wdt_start() - imgpdc: Fix NULL pointer dereference during probe and fix the default heartbeat * git://www.linux-watchdog.org/linux-watchdog: watchdog: imgpdc: Fix default heartbeat watchdog: imgpdc: Fix probe NULL pointer dereference watchdog: mtk_wdt: signedness bug in mtk_wdt_start()
2015-03-28Merge tag 'sound-4.0-rc6' of ↵Linus Torvalds2-2/+3
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "Three trivial oneliner fixes for HD-audio. Two are device-specific quirks while one is a generic fix for recent Realtek codecs" * tag 'sound-4.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda - Add one more node in the EAPD supporting candidate list ALSA: hda_intel: apply the Seperate stream_tag for Sunrise Point ALSA: hda - Add dock support for Thinkpad T450s (17aa:5036)
2015-03-27iommu/io-pgtable-arm: avoid speculative walks through TTBR1Will Deacon1-0/+5
Although we set TCR.T1SZ to 0, the input address range covered by TTBR1 is actually calculated using T0SZ in this case on the ARM SMMU. This could theoretically lead to speculative table walks through physical address zero, leading to all sorts of fun and games if we have MMIO regions down there. This patch avoids the issue by setting EPD1 to disable walks through the unused TTBR1 register. Signed-off-by: Will Deacon <will.deacon@arm.com>
2015-03-27iommu/arm-smmu: handle multi-alias IOMMU groups for PCI devicesWill Deacon1-35/+57
IOMMU groups for PCI devices can correspond to multiple DMA aliases due to things like ACS and PCI quirks. This patch extends the ARM SMMU ->add_device callback so that we consider all of the DMA aliases for a PCI IOMMU group, rather than creating a separate group for each Requester ID. Signed-off-by: Will Deacon <will.deacon@arm.com>
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