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2016-10-04drm: Undo damage to page_flip_ioctlDaniel Vetter
I screwed up rebasing of my patch in commit 43968d7b806d7a7e021261294c583a216fddf0e5 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Wed Sep 21 10:59:24 2016 +0200 drm: Extract drm_plane.[hc] which meant on error paths drm_crtc_vblank_put could be called without a get, leading to an underrun of the refcount. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98020 Reported-and-tested-by: Andy Furniss <adf.lists@gmail.com> Cc: Sean Paul <seanpaul@chromium.org> Cc: Michel Dänzer <michel@daenzer.net> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161003082827.11586-1-daniel.vetter@ffwll.ch Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-10-04drm: Restore lost drm_framebuffer_unreference in drm_mode_page_flip_ioctlChris Wilson
Commit 43968d7b806d ("drm: Extract drm_plane.[hc]") was not the simple cut'n'paste we presumed, somehow it introduced a leak of the page flip target's framebuffer. Fixes: 43968d7b806d ("drm: Extract drm_plane.[hc]") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Sean Paul <seanpaul@chromium.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20160928222500.11827-1-chris@chris-wilson.co.uk Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-10-04Merge branch 'exynos-drm-next' of ↵Dave Airlie
git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next This pull request includes, - Code refactoring on HDMI DDC and PHY. - Regression fixup on deadlock issue with G2D pm integration. - Fixup on page fault issue with wait_for_vblank mechianism specific to Exynos drm. - And some cleanups. * 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos: drm/exynos: g2d: simplify g2d_free_runqueue_node() drm/exynos: g2d: use autosuspend mode for PM runtime drm/exynos: g2d: wait for engine to finish drm/exynos: g2d: remove runqueue nodes in g2d_{close,remove}() drm/exynos: g2d: move PM management to runqueue worker Revert "drm/exynos: g2d: fix system and runtime pm integration" drm/exynos: use drm core to handle page-flip event drm/exynos: mark exynos_dp_crtc_clock_enable() static drm/exynos/fimd: add clock rate checking drm/exynos: fix pending update handling drm/exynos/vidi: use timer for vblanks instead of sleeping worker drm/exynos: g2d: beautify probing message drm/exynos: mixer: simplify loop in vp_win_reset() drm/exynos: mixer: convert booleans to flags in mixer context gpu: drm: exynos_hdmi: Remove duplicate initialization of regulator bulk consumer gpu: drm: exynos_hdmi: Move PHY logic into single function gpu: drm: exynos_hdmi: Move DDC logic into single function
2016-10-03Merge branch 'smp-hotplug-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull CPU hotplug updates from Thomas Gleixner: "Yet another batch of cpu hotplug core updates and conversions: - Provide core infrastructure for multi instance drivers so the drivers do not have to keep custom lists. - Convert custom lists to the new infrastructure. The block-mq custom list conversion comes through the block tree and makes the diffstat tip over to more lines removed than added. - Handle unbalanced hotplug enable/disable calls more gracefully. - Remove the obsolete CPU_STARTING/DYING notifier support. - Convert another batch of notifier users. The relayfs changes which conflicted with the conversion have been shipped to me by Andrew. The remaining lot is targeted for 4.10 so that we finally can remove the rest of the notifiers" * 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (46 commits) cpufreq: Fix up conversion to hotplug state machine blk/mq: Reserve hotplug states for block multiqueue x86/apic/uv: Convert to hotplug state machine s390/mm/pfault: Convert to hotplug state machine mips/loongson/smp: Convert to hotplug state machine mips/octeon/smp: Convert to hotplug state machine fault-injection/cpu: Convert to hotplug state machine padata: Convert to hotplug state machine cpufreq: Convert to hotplug state machine ACPI/processor: Convert to hotplug state machine virtio scsi: Convert to hotplug state machine oprofile/timer: Convert to hotplug state machine block/softirq: Convert to hotplug state machine lib/irq_poll: Convert to hotplug state machine x86/microcode: Convert to hotplug state machine sh/SH-X3 SMP: Convert to hotplug state machine ia64/mca: Convert to hotplug state machine ARM/OMAP/wakeupgen: Convert to hotplug state machine ARM/shmobile: Convert to hotplug state machine arm64/FP/SIMD: Convert to hotplug state machine ...
2016-10-03Merge branch 'irq-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq updates from Thomas Gleixner: "The irq departement proudly presents: - A rework of the core infrastructure to optimally spread interrupt for multiqueue devices. The first version was a bit naive and failed to take thread siblings and other details into account. Developed in cooperation with Christoph and Keith. - Proper delegation of softirqs to ksoftirqd, so if ksoftirqd is active then no further softirq processsing on interrupt return happens. Otherwise we try to delegate and still run another batch of network packets in the irq return path, which then tries to delegate to ksoftirqd ..... - A proper machine parseable sysfs based alternative for /proc/interrupts. - ACPI support for the GICV3-ITS and ARM interrupt remapping - Two new irq chips from the ARM SoC zoo: STM32-EXTI and MVEBU-PIC - A new irq chip for the JCore (SuperH) - The usual pile of small fixlets in core and irqchip drivers" * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (42 commits) softirq: Let ksoftirqd do its job genirq: Make function __irq_do_set_handler() static ARM/dts: Add EXTI controller node to stm32f429 ARM/STM32: Select external interrupts controller drivers/irqchip: Add STM32 external interrupts support Documentation/dt-bindings: Document STM32 EXTI controller bindings irqchip/mips-gic: Use for_each_set_bit to iterate over local IRQs pci/msi: Retrieve affinity for a vector genirq/affinity: Remove old irq spread infrastructure genirq/msi: Switch to new irq spreading infrastructure genirq/affinity: Provide smarter irq spreading infrastructure genirq/msi: Add cpumask allocation to alloc_msi_entry genirq: Expose interrupt information through sysfs irqchip/gicv3-its: Use MADT ITS subtable to do PCI/MSI domain initialization irqchip/gicv3-its: Factor out PCI-MSI part that might be reused for ACPI irqchip/gicv3-its: Probe ITS in the ACPI way irqchip/gicv3-its: Refactor ITS DT init code to prepare for ACPI irqchip/gicv3-its: Cleanup for ITS domain initialization PCI/MSI: Setup MSI domain on a per-device basis using IORT ACPI table ACPI: Add new IORT functions to support MSI domain handling ...
2016-10-03i40e: fix sideband flow director vector allocationStefan Assmann
Currently if the MSI-X vector limit is reached the sideband flow director gets disabled. A bit too early to make that decision, as vectors may get re-distributed. So move the check further back. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-10-03i40e: fix MSI-X vector redistribution if hw limit is reachedStefan Assmann
The driver allocates 1 vector per CPU thread and the current hardware limit for vectors is 129 per PF. On systems with 128 or more threads this currently means all vectors are used by the PF leaving no room for additional features like VMDq, iWARP, etc... The code that should redistribute the vectors in this case is broken and never triggers. Fixed the code so that it actually triggers if the hardware limit is reached and adjust the number of queue pairs accordingly. Also the number of initially requested iWARP vectors was not properly saved when the vector limit was reached, and therefore always zero. Comparison with debug statement. Before: i40e 0000:2d:00.0: VMDq disabled, not enough MSI-X vectors i40e 0000:2d:00.0: IWARP disabled, not enough MSI-X vectors i40e 00.0 MSI-X vector distribution: PF 128, VMDq 0, FDSB 0, iWARP 0 After: i40e 0000:2d:00.0: MSI-X vector limit reached, attempting to redistribute vectors i40e 00.0 MSI-X vector distribution: PF 78, VMDq 8, FDSB 0, iWARP 42 Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-10-03i40e: check if vectors are already depleted when doing VMDq allocationStefan Assmann
During MSI-X vector allocation for VMDq, a check for "no vectors left" was missing, add it. This prevents more vectors to be allocated than available. Signed-off-by: Stefan Assmann <sassmann@kpanic.de> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-10-04powerpc/64s: Remove unused exception code, small cleanupsNicholas Piggin
This was not done before the big patches because I only noticed them afterwards. It has become much easier to see which handlers are branched to from which exception vectors now, and to see exactly what vector space is being used for what. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Use a single macro for both parts of OOL exceptionNicholas Piggin
Simple substitution. This is possible now that both parts of the OOL initial handler get linked into their correct location. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Move __replay_interrupt function below handlersNicholas Piggin
This is not an exception handler as such, it's called from local_irq_enable(), not exception entry. Also clean up some now redundant comments at the end of the consolidation series. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate CBE Thermal 0x1800 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Altivec 0x1700 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Debug 0x1600 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Softpatch 0x1500 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Instruction Breakpoint 0x1300 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate CBE System Error 0x1200 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Reserved 0xfa0-0x1200 interruptsNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Hypervisor Facility Unavailable 0xf80 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Facility Unavailable 0xf60 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate VSX Unavailable 0xf40 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Vector Unavailable 0xf20 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Performance Monitor 0xf00 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Reserved 0xec0, 0xee0 interruptsNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Hypervisor Virtualization 0xea0 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Directed Hypervisor Doorbell 0xe80 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Hypervisor Maintenance 0xe60 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Hypervisor Emulation Assistance 0xe40 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Hypervisor Instruction Storage 0xe20 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Hypervisor Data Storage 0xe00 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Trace 0xd00 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate System Call 0xc00 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Reserved 0xb00 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Directed Privileged Doorbell 0xa00 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Hypervisor Decrementer 0x980 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Decrementer 0x900 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate FP Unavailable 0x800 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Program 0x700 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Alignment 0x600 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate External 0x500 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Instruction Segment 0x480 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Instruction Storage 0x400 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Data Segment 0x380 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Data Storage 0x300 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate Machine Check 0x200 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate System Reset 0x100 interruptNicholas Piggin
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc: Use gas sections for arranging exception vectorsNicholas Piggin
Use assembler sections of fixed size and location to arrange the 64-bit Book3S exception vector code (64-bit Book3E also uses it in head_64.S for 0x0..0x100). This allows better flexibility in arranging exception code and hiding unimportant details behind macros. Gas sections can be a bit painful to use this way, mainly because the assembler does not know where they will be finally linked. Taking absolute addresses requires a bit of trickery for example, but it can be hidden behind macros for the most part. Generated code is mostly the same except locations, offsets, alignments. The "+ 0x2" is only required for the trap number / kvm exit number, which gets loaded as a constant into a register. Previously, code also used + 0x2 for label names, but we changed to using "H" to distinguish HV case for that. Remove the last vestiges of that. __after_prom_start is taking absolute address of a label in another fixed section. Newer toolchains seemed to compile this okay, but older ones do not. FIXED_SYMBOL_ABS_ADDR is more foolproof, it just takes an additional line to define. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64: Change the way relocation copy is calculatedNicholas Piggin
With a subsequent patch to put text into different sections, (_end - _stext) can no longer be computed at link time to determine the end of the copy. Instead, calculate it at runtime with (copy_to_here - _stext) + (_end - copy_to_here). Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Consolidate exception handler alignmentNicholas Piggin
Move exception handler alignment directives into the head-64.h macros, beause they will no longer work in-place after the next patch. This slightly changes functions that have alignments applied and therefore code generation, which is why it was not done initially (see earlier patch). Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-10-04powerpc/64s: Add new exception vector macrosMichael Ellerman
Create arch/powerpc/include/asm/head-64.h with macros that specify an exception vector (name, type, location), which will be used to label and lay out exceptions into the object file. Naming is moved out of exception-64s.h, which is used to specify the implementation of exception handlers. objdump of generated code in exception vectors is unchanged except for names. Alignment directives scattered around are annoying, but done this way so that disassembly can verify identical instruction generation before and after patch. These get cleaned up in future patch. We change the way KVMTEST works, explicitly passing EXC_HV or EXC_STD rather than overloading the trap number. This removes the need to have SOFTEN values for the overloaded trap numbers, eg. 0x502. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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