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2015-01-11stmmac: dwmac-sti: Pass sysconfig register offset via syscon dt property.Peter Griffin2-12/+12
Based on Arnds review comments here https://lkml.org/lkml/2014/11/13/161, we should not be mixing address spaces in the reg property like this driver currently does. This patch updates the driver, dt docs and also the existing dt nodes to pass the sysconfig offset in the syscon dt property. This patch breaks DT compatibility! But this platform is considered WIP, and is only used by a few developers who are upstreaming support for it. This change has been done as a single atomic commit to ensure it is bisectable. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-11ARM: multi_v7_defconfig: Enable stih407 usb picophyPeter Griffin1-0/+1
This patch enables the picoPHY usb phy which is used by the usb2 and usb3 host controllers when controlling usb2/1.1 devices. It is found in stih407 family SoC's from STMicroelectronics. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Acked-by: Lee Jones <lee.jones@linaro.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-11ARM: STi: DT: STiH410: Add DT nodes for the ehci and ohci usb controllers.Peter Griffin1-0/+52
This patch adds the DT nodes for the extra ehci and ohci usb controllers on the stih410 SoC. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-11ARM: STi: DT: STiH410: Add usb2 picophy dt nodesPeter Griffin1-0/+18
This patch adds the dt nodes for the extra usb2 picophys found on the stih410. These two picophys are used in conjunction with the extra ehci/ohci usb controllers also found on the stih410 SoC. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-11ARM: STi: DT: STiH407: Add usb2 picophy dt nodesPeter Griffin1-0/+9
This patch adds the dt nodes for the usb2 picophy found on the stih407 device family. It is used on stih407 by the dwc3 usb3 controller when controlling usb2/1.1 devices. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-11phy: miphy365x: Pass sysconfig register offsets via syscfg dt property.Peter Griffin1-5/+5
Based on Arnds review comments here https://lkml.org/lkml/2014/11/13/161, update the miphy365 phy driver to access sysconfig register offsets via syscfg dt property. This is because the reg property should not be mixing address spaces like it does currently for miphy365. This change then also aligns us to how other platforms such as keystone and bcm7445 pass there syscon offsets via DT. This patch breaks DT compatibility, but this platform is considered WIP, and is only used by a few developers who are upstreaming support for it. This change has been done as a single atomic commit to ensure it is bisectable. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-08Revert "ARM: dts: imx6qdl: enable FEC magic-packet feature"Fabio Estevam2-2/+0
As 456062b3ec6f ("ARM: imx: add FEC sleep mode callback function") has been reverted, also revert the dts part. This reverts commit 07b4d2dda0c00f56248 ("ARM: dts: imx6qdl: enable FEC magic-packet feature"). Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-08Revert "ARM: imx: add FEC sleep mode callback function"Fabio Estevam2-90/+1
i.MX platform maintainer Shawn Guo is not happy with the such commit as explained below [1]: "The GPR difference between SoCs can be encoded in device tree as well. It's pointless to repeat the same code pattern for every single platform, that need to set up GPR bits for enabling magic packet wake up, while the only difference is the register and bit offset. The platform code will become quite messy and unmaintainable if every device driver dump their GPR register setup code into platform. Sorry, but it's NACK from me." This reverts commit 456062b3ec6f5b9 ("ARM: imx: add FEC sleep mode callback function"). [1] http://www.spinics.net/lists/netdev/msg310922.html Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller19-56/+53
2015-01-05Merge tag 'powerpc-3.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linuxLinus Torvalds7-11/+22
Pull powerpc fixes from Michael Ellerman: - Wire up sys_execveat(). Tested on 32 & 64 bit. - Fix for kdump on LE systems with cpus hot unplugged. - Revert Anton's fix for "kernel BUG at kernel/smpboot.c:134!", this broke other platforms, we'll do a proper fix for 3.20. * tag 'powerpc-3.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: Revert "powerpc: Secondary CPUs must set cpu_callin_map after setting active and online" powerpc/kdump: Ignore failure in enabling big endian exception during crash powerpc: Wire up sys_execveat() syscall
2015-01-05[IA64] Enable execveat syscall for ia64Tony Luck3-1/+3
See commit 51f39a1f0cea1cacf8c787f652f26dfee9611874 syscalls: implement execveat() system call Signed-off-by: Tony Luck <tony.luck@intel.com>
2015-01-04Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/umlLinus Torvalds3-2/+3
Pull UML fixes from Richard Weinberger: "Two fixes for UML regressions. Nothing exciting" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: x86, um: actually mark system call tables readonly um: Skip futex_atomic_cmpxchg_inatomic() test
2015-01-04Revert "ARM: 7830/1: delay: don't bother reporting bogomips in /proc/cpuinfo"Pavel Machek2-0/+21
Commit 9fc2105aeaaf ("ARM: 7830/1: delay: don't bother reporting bogomips in /proc/cpuinfo") breaks audio in python, and probably elsewhere, with message FATAL: cannot locate cpu MHz in /proc/cpuinfo I'm not the first one to hit it, see for example https://theredblacktree.wordpress.com/2014/08/10/fatal-cannot-locate-cpu-mhz-in-proccpuinfo/ https://devtalk.nvidia.com/default/topic/765800/workaround-for-fatal-cannot-locate-cpu-mhz-in-proc-cpuinf/?offset=1 Reading original changelog, I have to say "Stop breaking working setups. You know who you are!". Signed-off-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-01-04x86, um: actually mark system call tables readonlyDaniel Borkmann2-2/+2
Commit a074335a370e ("x86, um: Mark system call tables readonly") was supposed to mark the sys_call_table in UML as RO by adding the const, but it doesn't have the desired effect as it's nevertheless being placed into the data section since __cacheline_aligned enforces sys_call_table being placed into .data..cacheline_aligned instead. We need to use the ____cacheline_aligned version instead to fix this issue. Before: $ nm -v arch/x86/um/sys_call_table_64.o | grep -1 "sys_call_table" U sys_writev 0000000000000000 D sys_call_table 0000000000000000 D syscall_table_size After: $ nm -v arch/x86/um/sys_call_table_64.o | grep -1 "sys_call_table" U sys_writev 0000000000000000 R sys_call_table 0000000000000000 D syscall_table_size Fixes: a074335a370e ("x86, um: Mark system call tables readonly") Cc: H. Peter Anvin <hpa@zytor.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: Richard Weinberger <richard@nod.at>
2015-01-04um: Skip futex_atomic_cmpxchg_inatomic() testRichard Weinberger1-0/+1
futex_atomic_cmpxchg_inatomic() does not work on UML because it triggers a copy_from_user() in kernel context. On UML copy_from_user() can only be used if the kernel was called by a real user space process such that UML can use ptrace() to fetch the value. Reported-by: Miklos Szeredi <miklos@szeredi.hu> Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Richard Weinberger <richard@nod.at> Tested-by: Daniel Walter <d.walter@0x90.at>
2015-01-02microblaze: include the new timecounter header.Richard Cochran1-0/+1
The timecounter/cyclecounter code has moved, so users need the new include. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-31ARM: dts: rockchip: enable gmac on RK3288 evb boardRoger Chen2-0/+40
enable gmac in rk3288-evb-rk808.dts changes since v2: 1. add fixed regulator for PHY 2. remove power-gpio, reset-gpio, phyirq-gpio, pmu_regulator setting 3. add "snps,reset-gpio", "snps,reset-active-low;" "snps,reset-delays-us" Signed-off-by: Roger Chen <roger.chen@rock-chips.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-31ARM: dts: rockchip: add gmac info for rk3288Roger Chen1-0/+54
add gmac info in rk3288.dtsi for GMAC driver changes since v2: 1. add drive-strength in the pinctrl settings Signed-off-by: Roger Chen <roger.chen@rock-chips.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-31ARM: dts: imx6qdl: enable FEC magic-packet featureNimrod Andy2-0/+2
Add FEC magic-packet feature support. Signed-off-by: Fugang Duan <B38611@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-31ARM: imx: add FEC sleep mode callback functionNimrod Andy2-1/+90
i.MX6q/dl, i.MX6SX SOCs enet support sleep mode that magic packet can wake up system in suspend status. For different SOCs, there have some SOC specifical GPR register to set sleep on/off mode. So add these to callback function for driver. Signed-off-by: Fugang Duan <B38611@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-31Merge tag 'nios2-fixes-v3.19-rc3' of git://git.rocketboards.org/linux-socfpga-nextLinus Torvalds2-18/+3
Pull arch/nios2 fixes from Ley Foon Tan: - fix compilation error when enable CONFIG_PREEMPT - initialize cpuinfo.mmu variable supplied by the device tree * tag 'nios2-fixes-v3.19-rc3' of git://git.rocketboards.org/linux-socfpga-next: nios2: Use preempt_schedule_irq nios2: Initialize cpuinfo.mmu
2014-12-31nios2: Use preempt_schedule_irqTobias Klauser1-18/+2
Follow aa0d53260596 ("ia64: Use preempt_schedule_irq") and use preempt_schedule_irq instead of enabling/disabling interrupts and messing around with PREEMPT_ACTIVE in the nios2 low-level preemption code ourselves. Also get rid of the now needless re-check for TIF_NEED_RESCHED, preempt_schedule_irq will already take care of rescheduling. This also fixes the following build error when building with CONFIG_PREEMPT: arch/nios2/kernel/built-in.o: In function `need_resched': arch/nios2/kernel/entry.S:374: undefined reference to `PREEMPT_ACTIVE' Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Acked-by: Ley Foon Tan <lftan@altera.com>
2014-12-31nios2: Initialize cpuinfo.mmuWalter Goossens1-0/+1
This patch initializes the mmu field of the cpuinfo structure to the value supplied by the devicetree. Signed-off-by: Walter Goossens <waltergoossens@home.nl> Acked-by: Ley Foon Tan <lftan@altera.com>
2014-12-30Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds2-24/+1
Pull ARM SoC fixes from Arnd Bergmann: "A very small set of fixes for 3.19, as everyone was out. The clocksource patch was something I missed for the merge window after the change that broke arm64 was merged through arm-soc. The other two patches are a fix for an undetected merge problem in mvebu and a defconfig change to make some exynos boards work with the normal multi_v7_defconfig" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: Add USB_EHCI_EXYNOS to multi_v7_defconfig ARM: mvebu: Fix pinctrl configuration for Armada 370 DB clocksource: arch_timer: Only use the virtual counter (CNTVCT) on arm64
2014-12-30arm: sa1100: move irda header to linux/platform_dataDmitry Eremin-Solenikov5-24/+4
In the end asm/mach/irda.h header is not used by anybody except sa1100. Move the header to the platform data includes dir and rename it to irda-sa11x0.h. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-30Add USB_EHCI_EXYNOS to multi_v7_defconfigSteev Klimaszewski1-0/+1
Currently we enable Exynos devices in the multi v7 defconfig, however, when testing on my ODROID-U3, I noticed that USB was not working. Enabling this option causes USB to work, which enables networking support as well since the ODROID-U3 has networking on the USB bus. [arnd] Support for odroid-u3 was added in 3.10, so it would be nice to backport this fix at least that far. Signed-off-by: Steev Klimaszewski <steev@gentoo.org> Cc: stable@vger.kernel.org # 3.10 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-12-29Revert "powerpc: Secondary CPUs must set cpu_callin_map after setting active and online"Michael Ellerman1-8/+1
This reverts commit 7c5c92ed56d932b2c19c3f8aea86369509407d33. Although this did fix the bug it was aimed at, it also broke secondary startup on platforms that use give/take_timebase(). Unfortunately we didn't detect that while it was in next. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2014-12-29powerpc/kdump: Ignore failure in enabling big endian exception during crashHari Bathini3-2/+18
In LE kernel, we currently have a hack for kexec that resets the exception endian before starting a new kernel as the kernel that is loaded could be a big endian or a little endian kernel. In kdump case, resetting exception endian fails when one or more cpus is disabled. But we can ignore the failure and still go ahead, as in most cases crashkernel will be of same endianess as primary kernel and reseting endianess is not even needed in those cases. This patch adds a new inline function to say if this is kdump path. This function is used at places where such a check is needed. Signed-off-by: Hari Bathini <hbathini@linux.vnet.ibm.com> [mpe: Rename to kdump_in_progress(), use bool, and edit comment] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2014-12-29powerpc: Wire up sys_execveat() syscallPranith Kumar3-1/+3
Wire up sys_execveat(). This passes the selftests for the system call. Check success of execveat(3, '../execveat', 0)... [OK] Check success of execveat(5, 'execveat', 0)... [OK] Check success of execveat(6, 'execveat', 0)... [OK] Check success of execveat(-100, '/home/pranith/linux/...ftests/exec/execveat', 0)... [OK] Check success of execveat(99, '/home/pranith/linux/...ftests/exec/execveat', 0)... [OK] Check success of execveat(8, '', 4096)... [OK] Check success of execveat(17, '', 4096)... [OK] Check success of execveat(9, '', 4096)... [OK] Check success of execveat(14, '', 4096)... [OK] Check success of execveat(14, '', 4096)... [OK] Check success of execveat(15, '', 4096)... [OK] Check failure of execveat(8, '', 0) with ENOENT... [OK] Check failure of execveat(8, '(null)', 4096) with EFAULT... [OK] Check success of execveat(5, 'execveat.symlink', 0)... [OK] Check success of execveat(6, 'execveat.symlink', 0)... [OK] Check success of execveat(-100, '/home/pranith/linux/...xec/execveat.symlink', 0)... [OK] Check success of execveat(10, '', 4096)... [OK] Check success of execveat(10, '', 4352)... [OK] Check failure of execveat(5, 'execveat.symlink', 256) with ELOOP... [OK] Check failure of execveat(6, 'execveat.symlink', 256) with ELOOP... [OK] Check failure of execveat(-100, '/home/pranith/linux/tools/testing/selftests/exec/execveat.symlink', 256) with ELOOP... [OK] Check success of execveat(3, '../script', 0)... [OK] Check success of execveat(5, 'script', 0)... [OK] Check success of execveat(6, 'script', 0)... [OK] Check success of execveat(-100, '/home/pranith/linux/...elftests/exec/script', 0)... [OK] Check success of execveat(13, '', 4096)... [OK] Check success of execveat(13, '', 4352)... [OK] Check failure of execveat(18, '', 4096) with ENOENT... [OK] Check failure of execveat(7, 'script', 0) with ENOENT... [OK] Check success of execveat(16, '', 4096)... [OK] Check success of execveat(16, '', 4096)... [OK] Check success of execveat(4, '../script', 0)... [OK] Check success of execveat(4, 'script', 0)... [OK] Check success of execveat(4, '../script', 0)... [OK] Check failure of execveat(4, 'script', 0) with ENOENT... [OK] Check failure of execveat(5, 'execveat', 65535) with EINVAL... [OK] Check failure of execveat(5, 'no-such-file', 0) with ENOENT... [OK] Check failure of execveat(6, 'no-such-file', 0) with ENOENT... [OK] Check failure of execveat(-100, 'no-such-file', 0) with ENOENT... [OK] Check failure of execveat(5, '', 4096) with EACCES... [OK] Check failure of execveat(5, 'Makefile', 0) with EACCES... [OK] Check failure of execveat(11, '', 4096) with EACCES... [OK] Check failure of execveat(12, '', 4096) with EACCES... [OK] Check failure of execveat(99, '', 4096) with EBADF... [OK] Check failure of execveat(99, 'execveat', 0) with EBADF... [OK] Check failure of execveat(8, 'execveat', 0) with ENOTDIR... [OK] Invoke copy of 'execveat' via filename of length 4093: Check success of execveat(19, '', 4096)... [OK] Check success of execveat(5, 'xxxxxxxxxxxxxxxxxxxx...yyyyyyyyyyyyyyyyyyyy', 0)... [OK] Invoke copy of 'script' via filename of length 4093: Check success of execveat(20, '', 4096)... [OK] /bin/sh: 0: Can't open /dev/fd/5/xxxxxxx(... a long line of x's and y's, 0)... [OK] Check success of execveat(5, 'xxxxxxxxxxxxxxxxxxxx...yyyyyyyyyyyyyyyyyyyy', 0)... [OK] Tested on a 32-bit powerpc system. Signed-off-by: Pranith Kumar <bobby.prani@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2014-12-28Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds2-45/+45
Pull KVM fixes from Paolo Bonzini: "The important fixes are for two bugs introduced by the merge window. On top of this, add a couple of WARN_ONs and stop spamming dmesg on pretty much every boot of a virtual machine" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: kvm: warn on more invariant breakage kvm: fix sorting of memslots with base_gfn == 0 kvm: x86: drop severity of "generation wraparound" message kvm: x86: vmx: reorder some msr writing
2014-12-27kvm: x86: drop severity of "generation wraparound" messagePaolo Bonzini1-1/+1
Since most virtual machines raise this message once, it is a bit annoying. Make it KERN_DEBUG severity. Cc: stable@vger.kernel.org Fixes: 7a2e8aaf0f6873b47bc2347f216ea5b0e4c258ab Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-12-27kvm: x86: vmx: reorder some msr writingTiejun Chen1-44/+44
The commit 34a1cd60d17f, "x86: vmx: move some vmx setting from vmx_init() to hardware_setup()", tried to refactor some codes specific to vmx hardware setting into hardware_setup(), but some msr writing should depend on our previous setting condition like enable_apicv, enable_ept and so on. Reported-by: Jamie Heilman <jamie@audible.transient.net> Tested-by: Jamie Heilman <jamie@audible.transient.net> Signed-off-by: Tiejun Chen <tiejun.chen@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-12-26Merge branch 'parisc-3.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linuxLinus Torvalds1-3/+10
Pull parisc build fix from Helge Deller: "This unbreaks the kernel compilation on parisc with gcc-4.9" * 'parisc-3.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: fix out-of-register compiler error in ldcw inline assembler function
2014-12-26parisc: fix out-of-register compiler error in ldcw inline assembler functionJohn David Anglin1-3/+10
The __ldcw macro has a problem when its argument needs to be reloaded from memory. The output memory operand and the input register operand both need to be reloaded using a register in class R1_REGS when generating 64-bit code. This fails because there's only a single register in the class. Instead, use a memory clobber. This also makes the __ldcw macro a compiler memory barrier. Signed-off-by: John David Anglin <dave.anglin@bell.net> Cc: <stable@vger.kernel.org> [3.13+] Signed-off-by: Helge Deller <deller@gmx.de>
2014-12-23arm64: mm: Add pgd_page to support RCU fast_gupJungseok Lee1-2/+3
This patch adds pgd_page definition in order to keep supporting HAVE_GENERIC_RCU_GUP configuration. In addition, it changes pud_page expression to align with pmd_page for readability. An introduction of pgd_page resolves the following build breakage under 4KB + 4Level memory management combo. mm/gup.c: In function 'gup_huge_pgd': mm/gup.c:889:2: error: implicit declaration of function 'pgd_page' [-Werror=implicit-function-declaration] head = pgd_page(orig); ^ mm/gup.c:889:7: warning: assignment makes pointer from integer without a cast head = pgd_page(orig); Cc: Will Deacon <will.deacon@arm.com> Cc: Steve Capper <steve.capper@linaro.org> Signed-off-by: Jungseok Lee <jungseoklee85@gmail.com> [catalin.marinas@arm.com: remove duplicate pmd_page definition] Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2014-12-23arm64: defconfig: defconfig update for 3.19Will Deacon1-4/+5
The usual defconfig tweaks, this time: - FHANDLE and AUTOFS4_FS to keep systemd happy - PID_NS, QUOTA and KEYS to keep LTP happy - Disable DEBUG_PREEMPT, as this *really* hurts performance Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2014-12-23arm64: kernel: fix __cpu_suspend mm switch on warm-bootLorenzo Pieralisi1-1/+13
On arm64 the TTBR0_EL1 register is set to either the reserved TTBR0 page tables on boot or to the active_mm mappings belonging to user space processes, it must never be set to swapper_pg_dir page tables mappings. When a CPU is booted its active_mm is set to init_mm even though its TTBR0_EL1 points at the reserved TTBR0 page mappings. This implies that when __cpu_suspend is triggered the active_mm can point at init_mm even if the current TTBR0_EL1 register contains the reserved TTBR0_EL1 mappings. Therefore, the mm save and restore executed in __cpu_suspend might turn out to be erroneous in that, if the current->active_mm corresponds to init_mm, on resume from low power it ends up restoring in the TTBR0_EL1 the init_mm mappings that are global and can cause speculation of TLB entries which end up being propagated to user space. This patch fixes the issue by checking the active_mm pointer before restoring the TTBR0 mappings. If the current active_mm == &init_mm, the code sets the TTBR0_EL1 to the reserved TTBR0 mapping instead of switching back to the active_mm, which is the expected behaviour corresponding to the TTBR0_EL1 settings when __cpu_suspend was entered. Fixes: 95322526ef62 ("arm64: kernel: cpu_{suspend/resume} implementation") Cc: <stable@vger.kernel.org> # 3.14+: 18ab7db Cc: <stable@vger.kernel.org> # 3.14+: 714f599 Cc: <stable@vger.kernel.org> # 3.14+: c3684fb Cc: <stable@vger.kernel.org> # 3.14+ Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2014-12-22arm64: Replace set_arch_dma_coherent_ops with arch_setup_dma_opsCatalin Marinas1-5/+6
Commit a3a60f81ee6f (dma-mapping: replace set_arch_dma_coherent_ops with arch_setup_dma_ops) changes the of_dma_configure() arch dma_ops callback to arch_setup_dma_ops but only the arch/arm code is updated. Subsequent commit 97890ba9289c (dma-mapping: detect and configure IOMMU in of_dma_configure) changes the arch_setup_dma_ops() prototype further to handle iommu. The patch makes the corresponding arm64 changes. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Reported-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Will Deacon <will.deacon@arm.com>
2014-12-21ARM: mvebu: Fix pinctrl configuration for Armada 370 DBGregory CLEMENT1-24/+0
The commit b4607572ef86 (ARM: mvebu: remove conflicting muxing on Armada 370 DB) removes the hog pins muxing. As it is explained in the commit log it solves a warning a boot time, but more important it also allows using the Giga port 0 of the board. Unfortunately in the same time the commit 4904a82a9399 (arm: mvebu: move Armada 370/XP pinctrl node definition armada-370-xp.dtsi) was merged and it introduced again the hog pins muxing. Because of it, the Giga port 0 of the board is no more usable. This commit remove again the conflicting muxing (hopefully for the last time). Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> [andrew@lunn.ch: Correct commit IDs] Signed-off-by: Andrew Lunn <andrew@lunn.ch> Fixes: 4904a82a9399 ("arm: mvebu: move Armada 370/XP pinctrl node definition armada-370-xp.dtsi")
2014-12-20Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/borntraeger/linuxLinus Torvalds6-22/+16
Pull ACCESS_ONCE cleanup preparation from Christian Borntraeger: "kernel: Provide READ_ONCE and ASSIGN_ONCE As discussed on LKML http://marc.info/?i=54611D86.4040306%40de.ibm.com ACCESS_ONCE might fail with specific compilers for non-scalar accesses. Here is a set of patches to tackle that problem. The first patch introduce READ_ONCE and ASSIGN_ONCE. If the data structure is larger than the machine word size memcpy is used and a warning is emitted. The next patches fix up several in-tree users of ACCESS_ONCE on non-scalar types. This does not yet contain a patch that forces ACCESS_ONCE to work only on scalar types. This is targetted for the next merge window as Linux next already contains new offenders regarding ACCESS_ONCE vs. non-scalar types" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/borntraeger/linux: s390/kvm: REPLACE barrier fixup with READ_ONCE arm/spinlock: Replace ACCESS_ONCE with READ_ONCE arm64/spinlock: Replace ACCESS_ONCE READ_ONCE mips/gup: Replace ACCESS_ONCE with READ_ONCE x86/gup: Replace ACCESS_ONCE with READ_ONCE x86/spinlock: Replace ACCESS_ONCE with READ_ONCE mm: replace ACCESS_ONCE with READ_ONCE or barriers kernel: Provide READ_ONCE and ASSIGN_ONCE
2014-12-20Merge tag 'clk-for-linus-3.19' of git://git.linaro.org/people/mike.turquette/linuxLinus Torvalds20-148/+157
Pull clk framework updates from Mike Turquette: "This is much later than usual due to several last minute bugs that had to be addressed. As usual the majority of changes are new drivers and modifications to existing drivers. The core recieved many fixes along with the groundwork for several large changes coming in the future which will better parition clock providers from clock consumers" * tag 'clk-for-linus-3.19' of git://git.linaro.org/people/mike.turquette/linux: (86 commits) clk: samsung: Fix Exynos 5420 pinctrl setup and clock disable failure due to domain being gated ARM: OMAP3: clock: fix boot breakage in legacy mode ARM: OMAP2+: clock: fix DPLL code to use new determine rate APIs clk: Really fix deadlock with mmap_sem clk: mmp: fix sparse non static symbol warning clk: Change clk_ops->determine_rate to return a clk_hw as the best parent clk: change clk_debugfs_add_file to take a struct clk_hw clk: Don't expose __clk_get_accuracy clk: Don't try to use a struct clk* after it could have been freed clk: Remove unused function __clk_get_prepare_count clk: samsung: Fix double add of syscore ops after driver rebind clk: samsung: exynos4: set parent of sclk_hdmiphy to hdmi clk: samsung: exynos4415: Fix build with PM_SLEEP disabled clk: samsung: remove unnecessary inclusion of header files from clk.h clk: samsung: remove unnecessary CONFIG_OF from clk.c clk: samsung: Spelling s/bwtween/between/ clk: rockchip: Add support for the mmc clock phases using the framework clk: rockchip: add bindings for the mmc clocks clk: rockchip: rk3288 export i2s0_clkout for use in DT clk: rockchip: use clock ID for DMC (memory controller) on rk3288 ...
2014-12-20Merge tag 'pm-config-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds33-35/+30
Pull CONFIG_PM_RUNTIME elimination from Rafael Wysocki: "This removes the last few uses of CONFIG_PM_RUNTIME introduced recently and makes that config option finally go away. CONFIG_PM will be available directly from the menu now and also it will be selected automatically if CONFIG_SUSPEND or CONFIG_HIBERNATION is set" * tag 'pm-config-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM: Eliminate CONFIG_PM_RUNTIME tty: 8250_omap: Replace CONFIG_PM_RUNTIME with CONFIG_PM sound: sst-haswell-pcm: Replace CONFIG_PM_RUNTIME with CONFIG_PM spi: Replace CONFIG_PM_RUNTIME with CONFIG_PM
2014-12-19Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rkuo/linux-hexagon-kernelLinus Torvalds8-27/+38
Pull arch/hexagon updates from Richard Kuo: "Build cleanup and a few misc fixes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rkuo/linux-hexagon-kernel: Hexagon: fix signal delivery for debug traps Hexagon: set ARCH_DMA_MINALIGN Hexagon: fix alignment of init_task in RW_DATA_SECTION hexagon: Fix build failures in linux-next
2014-12-19Merge tag 'cris-changes-for-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/crisLinus Torvalds16-814/+1039
Pull arch/chris updates from Jesper Nilsson: "Mostly cleanup and build fixes for CRISv32 allmodconfig God Jul och Gott Nytt år!" * tag 'cris-changes-for-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris: CRISv32: Remove last remnants of ETRAX_SPI_MMC_BOARD CRISv32: ETRAXFS: Fix recursive spinlock CRISv32: Select MTDRAM for axisflashmap CRISv32: Implement early console CRIS: Use KALLSYMs if available in call stack dump CRISv32: Fix declaration mismatch CRISv32: Rewrite of synchronous serial port driver CRIS: Update init memory handling CRISv32: Better handling of watchdog bite CRIS: Export missing function symbols CRIS: Export ioremap_nocache CRIS: Fix headers_install CRISv32: Add missing include for mm.h CRISv32: Drop obsolete file for SPI driver
2014-12-19Merge tag 'please-pull-misc-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linuxLinus Torvalds1-2/+2
Pull ia64 __get_cpu_var removal from Tony Luck: "__get_cpu_var removed from rest of tree, drop reference from comments in arch/ia64" * tag 'please-pull-misc-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux: [IA64] Update comment that references __get_cpu_var
2014-12-20CRISv32: Remove last remnants of ETRAX_SPI_MMC_BOARDJesper Nilsson1-7/+0
There are no users of this symbol left. Reported-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRISv32: ETRAXFS: Fix recursive spinlockJesper Nilsson2-71/+83
Move pinmux alloc/dealloc code into functions that don't take the spinlock so we can use from code that has the spinlock already. CRISv32 has no working SMP, so spinlocks becomes a NOP, so deadlock was never seen. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRISv32: Select MTDRAM for axisflashmapJesper Nilsson1-0/+1
Fixes compile error on allmodconfig. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRISv32: Implement early consoleJesper Nilsson1-26/+56
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2014-12-20CRIS: Use KALLSYMs if available in call stack dumpJesper Nilsson1-27/+34
Also, print kernel version on oops. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>