1. 21 9月, 2017 2 次提交
    • T
      powerpc/pseries: Fix "OF: ERROR: Bad of_node_put() on /cpus" during DLPAR · 087ff6a5
      Tyrel Datwyler 提交于
      Commit 215ee763 ("powerpc: pseries: remove dlpar_attach_node
      dependency on full path") reworked dlpar_attach_node() to no longer
      look up the parent node "/cpus", but instead to have the parent node
      passed by the caller in the function parameter list.
      
      As a result dlpar_attach_node() is no longer responsible for freeing
      the reference to the parent node. However, commit 215ee763 failed
      to remove the of_node_put(parent) call in dlpar_attach_node(), or to
      take into account that the reference to the parent in the caller
      dlpar_cpu_add() needs to be held until after dlpar_attach_node()
      returns.
      
      As a result doing repeated cpu add/remove dlpar operations will
      eventually result in the following error:
      
        OF: ERROR: Bad of_node_put() on /cpus
        CPU: 0 PID: 10896 Comm: drmgr Not tainted 4.13.0-autotest #1
        Call Trace:
         dump_stack+0x15c/0x1f8 (unreliable)
         of_node_release+0x1a4/0x1c0
         kobject_put+0x1a8/0x310
         kobject_del+0xbc/0xf0
         __of_detach_node_sysfs+0x144/0x210
         of_detach_node+0xf0/0x180
         dlpar_detach_node+0xc4/0x120
         dlpar_cpu_remove+0x280/0x560
         dlpar_cpu_release+0xbc/0x1b0
         arch_cpu_release+0x6c/0xb0
         cpu_release_store+0xa0/0x100
         dev_attr_store+0x68/0xa0
         sysfs_kf_write+0xa8/0xf0
         kernfs_fop_write+0x2cc/0x400
         __vfs_write+0x5c/0x340
         vfs_write+0x1a8/0x3d0
         SyS_write+0xa8/0x1a0
         system_call+0x58/0x6c
      
      Fix the issue by removing the of_node_put(parent) call from
      dlpar_attach_node(), and ensuring that the reference to the parent
      node is properly held and released by the caller dlpar_cpu_add().
      
      Fixes: 215ee763 ("powerpc: pseries: remove dlpar_attach_node dependency on full path")
      Signed-off-by: NTyrel Datwyler <tyreld@linux.vnet.ibm.com>
      Reported-by: NAbdul Haleem <abdhalee@linux.vnet.ibm.com>
      [mpe: Add a comment in the code and frob the change log slightly]
      Signed-off-by: NMichael Ellerman <mpe@ellerman.id.au>
      087ff6a5
    • B
      powerpc/eeh: Create PHB PEs after EEH is initialized · 3e77adee
      Benjamin Herrenschmidt 提交于
      Otherwise we end up not yet having computed the right diag data size
      on powernv where EEH initialization is delayed, thus causing memory
      corruption later on when calling OPAL.
      
      Fixes: 5cb1f8fd ("powerpc/powernv/pci: Dynamically allocate PHB diag data")
      Cc: stable@vger.kernel.org # v4.13+
      Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
      Acked-by: NRussell Currey <ruscur@russell.cc>
      Signed-off-by: NMichael Ellerman <mpe@ellerman.id.au>
      3e77adee
  2. 20 9月, 2017 10 次提交
  3. 19 9月, 2017 6 次提交
  4. 18 9月, 2017 4 次提交
  5. 17 9月, 2017 14 次提交
  6. 16 9月, 2017 4 次提交
    • L
      Merge branch '4.14-features' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus · 73184130
      Linus Torvalds 提交于
      Pull MIPS updates from Ralf Baechle:
       "This is the main pull request for 4.14 for MIPS; below a summary of
        the non-merge commits:
      
        CM:
         - Rename mips_cm_base to mips_gcr_base
         - Specify register size when generating accessors
         - Use BIT/GENMASK for register fields, order & drop shifts
         - Add cluster & block args to mips_cm_lock_other()
      
        CPC:
         - Use common CPS accessor generation macros
         - Use BIT/GENMASK for register fields, order & drop shifts
         - Introduce register modify (set/clear/change) accessors
         - Use change_*, set_* & clear_* where appropriate
         - Add CM/CPC 3.5 register definitions
         - Use GlobalNumber macros rather than magic numbers
         - Have asm/mips-cps.h include CM & CPC headers
         - Cluster support for topology functions
         - Detect CPUs in secondary clusters
      
        CPS:
         - Read GIC_VL_IDENT directly, not via irqchip driver
      
        DMA:
         - Consolidate coherent and non-coherent dma_alloc code
         - Don't use dma_cache_sync to implement fd_cacheflush
      
        FPU emulation / FP assist code:
         - Another series of 14 commits fixing corner cases such as NaN
           propgagation and other special input values.
         - Zero bits 32-63 of the result for a CLASS.D instruction.
         - Enhanced statics via debugfs
         - Do not use bools for arithmetic. GCC 7.1 moans about this.
         - Correct user fault_addr type
      
        Generic MIPS:
         - Enhancement of stack backtraces
         - Cleanup from non-existing options
         - Handle non word sized instructions when examining frame
         - Fix detection and decoding of ADDIUSP instruction
         - Fix decoding of SWSP16 instruction
         - Refactor handling of stack pointer in get_frame_info
         - Remove unreachable code from force_fcr31_sig()
         - Convert to using %pOF instead of full_name
         - Remove the R6000 support.
         - Move FP code from *_switch.S to *_fpu.S
         - Remove unused ST_OFF from r2300_switch.S
         - Allow platform to specify multiple its.S files
         - Add #includes to various files to ensure code builds reliable and
           without warning..
         - Remove __invalidate_kernel_vmap_range
         - Remove plat_timer_setup
         - Declare various variables & functions static
         - Abstract CPU core & VP(E) ID access through accessor functions
         - Store core & VP IDs in GlobalNumber-style variable
         - Unify checks for sibling CPUs
         - Add CPU cluster number accessors
         - Prevent direct use of generic_defconfig
         - Make CONFIG_MIPS_MT_SMP default y
         - Add __ioread64_copy
         - Remove unnecessary inclusions of linux/irqchip/mips-gic.h
      
        GIC:
         - Introduce asm/mips-gic.h with accessor functions
         - Use new GIC accessor functions in mips-gic-timer
         - Remove counter access functions from irq-mips-gic.c
         - Remove gic_read_local_vp_id() from irq-mips-gic.c
         - Simplify shared interrupt pending/mask reads in irq-mips-gic.c
         - Simplify gic_local_irq_domain_map() in irq-mips-gic.c
         - Drop gic_(re)set_mask() functions in irq-mips-gic.c
         - Remove gic_set_polarity(), gic_set_trigger(), gic_set_dual_edge(),
           gic_map_to_pin() and gic_map_to_vpe() from irq-mips-gic.c.
         - Convert remaining shared reg access, local int mask access and
           remaining local reg access to new accessors
         - Move GIC_LOCAL_INT_* to asm/mips-gic.h
         - Remove GIC_CPU_INT* macros from irq-mips-gic.c
         - Move various definitions to the driver
         - Remove gic_get_usm_range()
         - Remove __gic_irq_dispatch() forward declaration
         - Remove gic_init()
         - Use mips_gic_present() in place of gic_present and remove
           gic_present
         - Move gic_get_c0_*_int() to asm/mips-gic.h
         - Remove linux/irqchip/mips-gic.h
         - Inline __gic_init()
         - Inline gic_basic_init()
         - Make pcpu_masks a per-cpu variable
         - Use pcpu_masks to avoid reading GIC_SH_MASK*
         - Clean up mti, reserved-cpu-vectors handling
         - Use cpumask_first_and() in gic_set_affinity()
         - Let the core set struct irq_common_data affinity
      
        microMIPS:
         - Fix microMIPS stack unwinding on big endian systems
      
        MIPS-GIC:
         - SYNC after enabling GIC region
      
        NUMA:
         - Remove the unused parent_node() macro
      
        R6:
         - Constify r2_decoder_tables
         - Add accessor & bit definitions for GlobalNumber
      
        SMP:
         - Constify smp ops
         - Allow boot_secondary SMP op to return errors
      
        VDSO:
         - Drop gic_get_usm_range() usage
         - Avoid use of linux/irqchip/mips-gic.h
      
        Platform changes:
      
        Alchemy:
         - Add devboard machine type to cpuinfo
         - update cpu feature overrides
         - Threaded carddetect irqs for devboards
      
        AR7:
         - allow NULL clock for clk_get_rate
      
        BCM63xx:
         - Fix ENETDMA_6345_MAXBURST_REG offset
         - Allow NULL clock for clk_get_rate
      
        CI20:
         - Enable GPIO and RTC drivers in defconfig
         - Add ethernet and fixed-regulator nodes to DTS
      
        Generic platform:
         - Move Boston and NI 169445 FIT image source to their own files
         - Include asm/bootinfo.h for plat_fdt_relocated()
         - Include asm/time.h for get_c0_*_int()
         - Include asm/bootinfo.h for plat_fdt_relocated()
         - Include asm/time.h for get_c0_*_int()
         - Allow filtering enabled boards by requirements
         - Don't explicitly disable CONFIG_USB_SUPPORT
         - Bump default NR_CPUS to 16
      
        JZ4700:
         - Probe the jz4740-rtc driver from devicetree
      
        Lantiq:
         - Drop check of boot select from the spi-falcon driver.
         - Drop check of boot select from the lantiq-flash MTD driver.
         - Access boot cause register in the watchdog driver through regmap
         - Add device tree binding documentation for the watchdog driver
         - Add docs for the RCU DT bindings.
         - Convert the fpi bus driver to a platform_driver
         - Remove ltq_reset_cause() and ltq_boot_select(
         - Switch to a proper reset driver
         - Switch to a new drivers/soc GPHY driver
         - Add an USB PHY driver for the Lantiq SoCs using the RCU module
         - Use of_platform_default_populate instead of __dt_register_buses
         - Enable MFD_SYSCON to be able to use it for the RCU MFD
         - Replace ltq_boot_select() with dummy implementation.
      
        Loongson 2F:
         - Allow NULL clock for clk_get_rate
      
        Malta:
         - Use new GIC accessor functions
      
        NI 169445:
         - Add support for NI 169445 board.
         - Only include in 32r2el kernels
      
        Octeon:
         - Add support for watchdog of 78XX SOCs.
         - Add support for watchdog of CN68XX SOCs.
         - Expose support for mips32r1, mips32r2 and mips64r1
         - Enable more drivers in config file
         - Add support for accessing the boot vector.
         - Remove old boot vector code from watchdog driver
         - Define watchdog registers for 70xx, 73xx, 78xx, F75xx.
         - Make CSR functions node aware.
         - Allow access to CIU3 IRQ domains.
         - Misc cleanups in the watchdog driver
      
        Omega2+:
         - New board, add support and defconfig
      
        Pistachio:
         - Enable Root FS on NFS in defconfig
      
        Ralink:
         - Add Mediatek MT7628A SoC
         - Allow NULL clock for clk_get_rate
         - Explicitly request exclusive reset control in the pci-mt7620 PCI driver.
      
        SEAD3:
         - Only include in 32 bit kernels by default
      
        VoCore:
         - Add VoCore as a vendor t0 dt-bindings
         - Add defconfig file"
      
      * '4.14-features' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (167 commits)
        MIPS: Refactor handling of stack pointer in get_frame_info
        MIPS: Stacktrace: Fix microMIPS stack unwinding on big endian systems
        MIPS: microMIPS: Fix decoding of swsp16 instruction
        MIPS: microMIPS: Fix decoding of addiusp instruction
        MIPS: microMIPS: Fix detection of addiusp instruction
        MIPS: Handle non word sized instructions when examining frame
        MIPS: ralink: allow NULL clock for clk_get_rate
        MIPS: Loongson 2F: allow NULL clock for clk_get_rate
        MIPS: BCM63XX: allow NULL clock for clk_get_rate
        MIPS: AR7: allow NULL clock for clk_get_rate
        MIPS: BCM63XX: fix ENETDMA_6345_MAXBURST_REG offset
        mips: Save all registers when saving the frame
        MIPS: Add DWARF unwinding to assembly
        MIPS: Make SAVE_SOME more standard
        MIPS: Fix issues in backtraces
        MIPS: jz4780: DTS: Probe the jz4740-rtc driver from devicetree
        MIPS: Ci20: Enable RTC driver
        watchdog: octeon-wdt: Add support for 78XX SOCs.
        watchdog: octeon-wdt: Add support for cn68XX SOCs.
        watchdog: octeon-wdt: File cleaning.
        ...
      73184130
    • L
      Merge tag 'pci-v4.14-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci · 8d93c7a4
      Linus Torvalds 提交于
      Pull PCI fix from Bjorn Helgaas:
       "Revert an attempt to fix a race while enabling upstream bridges
        because it broke iwlwifi firmware loading"
      
      * tag 'pci-v4.14-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
        Revert "PCI: Avoid race while enabling upstream bridges"
      8d93c7a4
    • L
      Merge tag 'drm-fixes-for-v4.14-rc1' of git://people.freedesktop.org/~airlied/linux · 02cfe977
      Linus Torvalds 提交于
      Pull drm AMD fixes from Dave Airlie:
       "Just had a single AMD fixes pull from Alex for rc1"
      
      * tag 'drm-fixes-for-v4.14-rc1' of git://people.freedesktop.org/~airlied/linux:
        drm/amdgpu: revert "fix deadlock of reservation between cs and gpu reset v2"
        drm/amdgpu: remove duplicate return statement
        drm/amdgpu: check memory allocation failure
        drm/amd/amdgpu: fix BANK_SELECT on Vega10 (v2)
        drm/amdgpu: inline amdgpu_ttm_do_bind again
        drm/amdgpu: fix amdgpu_ttm_bind
        drm/amdgpu: remove the GART copy hack
        drm/ttm:fix wrong decoding of bo_count
        drm/ttm: fix missing inc bo_count
        drm/amdgpu: set sched_hw_submission higher for KIQ (v3)
        drm/amdgpu: move default gart size setting into gmc modules
        drm/amdgpu: refine default gart size
        drm/amd/powerplay: ACG frequency added in PPTable
        drm/amdgpu: discard commands of killed processes
        drm/amdgpu: fix and cleanup shadow handling
        drm/amdgpu: add automatic per asic settings for gart_size
        drm/amdgpu/gfx8: fix spelling typo in mqd allocation
        drm/amd/powerplay: unhalt mec after loading
        drm/amdgpu/virtual_dce: Virtual display doesn't support disable vblank immediately
        drm/amdgpu: Fix huge page updates with CPU
      02cfe977
    • L
      Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux · bbe05e54
      Linus Torvalds 提交于
      Pull more i2c updates from Wolfram Sang:
       "I2C has two more new drivers: Altera FPGA and STM32F7"
      
      * 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
        i2c: i2c-stm32f7: add driver
        i2c: i2c-stm32f4: use generic definition of speed enum
        dt-bindings: i2c-stm32: Document the STM32F7 I2C bindings
        i2c: altera: Add Altera I2C Controller driver
        dt-bindings: i2c: Add Altera I2C Controller
      bbe05e54