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2014-12-08Merge tag 'perf-core-for-mingo' of ↵Ingo Molnar17-79/+205
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: User visible changes: - Callchain improvements from Andi Kleen including: * Enable printing the srcline in the history * Make get_srcline fall back to sym+offset - Allow to force redirect pr_debug to stderr. (Andi Kleen) - TUI hist_entry browser fixes, including showing missing overhead value for first level callchain. Detected comparing the output of --stdio/--gui (that matched) with --tui, that had this problem. (Namhyung Kim) - Fix segfault due to invalid kernel dso access (Namhyung Kim) Infrastructure changes: - Move bfd_demangle stubbing to its only user (Arnaldo Carvalho de Melo) - 'perf stat' refactorings, moving stuff from it to evsel.c to use in per-pkg/snapshot format changes (Jiri Olsa) - Add per-pkg format file parsing (Matt Fleming) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-12-08nios2: Make NIOS2_CMDLINE_IGNORE_DTB depend on CMDLINE_BOOLTobias Klauser1-0/+1
If NIOS2_CMDLINE_IGNORE_DTB is selected but CMDLINE_BOOL isn't and thus CONFIG_CMDLINE is not defined, the build fails with the following error: arch/nios2/kernel/setup.c: In function 'nios2_boot_init': arch/nios2/kernel/setup.c:131:30: error: 'CONFIG_CMDLINE' undeclared (first use in this function) strncpy(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE); This can be reproduced using randconfig with KCONFIG_SEED=0xE5B8749E, i.e. 'make KCONFIG_SEED=0xE5B8749E ARCH=nios2 randconfig'. Fix this by letting NIOS2_CMDLINE_IGNORE_DTB depend on CMDLINE_BOOL, so we actually have a default kernel command string to fall back to. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Acked-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: Add missing NR_CPUS to KconfigTobias Klauser1-0/+4
kernel/time/Kconfig expects that NR_CPUS is defined. This fixes the following config warning: "kernel/time/Kconfig:163:warning: range is invalid" Follow 4cbbbb43d666 ("microblaze: Fix missing NR_CPUS in menuconfig") Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Acked-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: asm-offsets: Remove unused definition TI_TASKTobias Klauser1-1/+0
TI_TASK is not used in nios2 assembly code, so remove it. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Acked-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: Remove write-only struct member from nios2_timerTobias Klauser1-2/+0
The irq member of struct nios2_timer is only written to but never read, thus it can be removed. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Acked-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: Remove unused extern declaration of shm_align_maskTobias Klauser1-2/+0
shm_align_mask is not defined/used on nios2, thus there is no need to declare it. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Acked-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: include linux/type.h in io.hLey Foon Tan1-0/+1
This is require for __iomem definition. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: move include asm-generic/io.h to end of fileLey Foon Tan1-2/+2
Move asm-generic/io.h to end of file to override functions like phys_to_virt, virt_to_phys in asm-generic/io.h. This is due to recent commit 9216efaf introduced new way to override functions by checking for the existence of a macro with the same of the function. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: remove include asm-generic/iomap.h from io.hLey Foon Tan1-1/+0
Don't need asm-generic/iomap.h and asm-generic/io.h added default ioread8/16/32 iowrite8/16/32 implementation. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: remove unnecessary space before defineLey Foon Tan1-4/+4
Remove extra space between # and define. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: fix error handling of irq_of_parse_and_mapDmitry Torokhov1-1/+1
Return value of irq_of_parse_and_map() is unsigned int, with 0 indicating failure, so testing for negative result never works. Signed-off-by: Dmitry Torokhov <dtor@chromium.org> Reviewed-by: Tobias Klauser <tklauser@distanz.ch> Acked-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: Use IS_ENABLED instead of #ifdefs to check config symbolsTobias Klauser1-9/+5
Make the checking for div/mul/mulx instruction config symbols easier to read by using IS_ENABLED instead of #ifdefs. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Acked-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: Build infrastructureLey Foon Tan15-0/+826
This patch adds Makefile and Kconfig files required for building a nios2 kernel. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08Documentation: Add documentation for Nios2 architectureLey Foon Tan1-0/+23
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08MAINTAINERS: Add nios2 maintainerLey Foon Tan1-0/+7
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: ptrace supportLey Foon Tan3-0/+319
Add ptrace support for nios2. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: Module supportLey Foon Tan1-0/+138
This patch adds support for loadable modules. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: Nios2 registersLey Foon Tan1-0/+71
This file contains constants for the instruction macros, cpu registers, fields and bits. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: Miscellaneous header filesLey Foon Tan5-0/+146
This patch introduces a few nios2-specific header files. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: Cpuinfo handlingLey Foon Tan2-0/+258
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: Time keepingLey Foon Tan4-0/+407
Add time keeping code for nios2. Signed-off-by: Ley Foon Tan <lftan@altera.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
2014-12-08nios2: Device tree supportLey Foon Tan6-0/+375
Add device tree support to arch/nios2. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: Library functionsLey Foon Tan5-0/+467
Add optimised library functions for nios2. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: Signal handling supportLey Foon Tan5-0/+428
This patch adds support for signal handling. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: System calls handlingLey Foon Tan5-0/+270
This patch adds support for system calls from userspaces. It uses the asm-generic/unistd.h definitions with architecture spcific syscall. The sys_call_table is just an array defined in a C file and it contains pointers to the syscall functions. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: ELF definitionsLey Foon Tan2-0/+168
This patch adds definitions for the ELF format Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08Add ELF machine define for Nios2Ley Foon Tan1-0/+1
Signed-off-by: Ley Foon Tan <lftan@altera.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2014-12-08nios2: DMA mapping APILey Foon Tan2-0/+326
This patch adds support for the DMA mapping API. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: Interrupt handlingLey Foon Tan3-0/+193
This patch adds the support for IRQ handling. Signed-off-by: Ley Foon Tan <lftan@altera.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
2014-12-08nios2: TLB handlingLey Foon Tan3-0/+355
This patch adds the TLB maintenance functions. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: Cache handlingLey Foon Tan3-0/+359
This patch adds functionality required for cache maintenance. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: Process managementLey Foon Tan6-0/+694
This patch adds support for thread creation and context switching. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: Page table managementLey Foon Tan4-0/+505
This patch adds support for page table management. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: MMU Fault handlingLey Foon Tan2-0/+276
This patch adds support for the handling of the MMU faults (exception entry code introduced by a previous patch, kernel/entry.S). Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: I/O MappingLey Foon Tan2-0/+248
This patch adds several definitions for I/O accessors and ioremap(). Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: Memory managementLey Foon Tan5-0/+663
This patch contains the initialisation of the memory blocks, MMU attributes and the memory map. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: Traps exception handlingLey Foon Tan3-0/+796
This patch contains traps exception handling. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: Exception handlingLey Foon Tan2-0/+811
This patch contains the exception entry code (kernel/entry.S) and misaligned exception. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: Kernel booting and initializationLey Foon Tan4-0/+551
This patch adds the kernel booting and the initial setup code. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08nios2: Assembly macros and definitionsLey Foon Tan3-0/+417
This patch add assembly macros and definitions used in the .S files across arch/nios2/ and together with asm-offsets.c. Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08asm-generic: add generic futex for !CONFIG_SMPLey Foon Tan1-0/+114
Follow m68k futex implementation for !CONFIG_SMP. Signed-off-by: Ley Foon Tan <lftan@altera.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2014-12-08Linux 3.18Linus Torvalds1-1/+1
2014-12-07genirq: Move irq_chip_write_msi_msg() helper to coreThomas Gleixner2-6/+6
No point to expose this to the world. The only legitimate user is the core code. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Marc Zyngier <marc.zyngier@arm.com>
2014-12-07Merge branch 'for-3.18-fixes' of ↵Linus Torvalds2-1/+5
git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata Pull libata fixes from Tejun Heo: "Three libata fixes for v3.18. Nothing too interesting. PCI ID ID and quirk additions to ahci and an error handling path fix in sata_fsl" * 'for-3.18-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: ahci: disable MSI on SAMSUNG 0xa800 SSD sata_fsl: fix error handling of irq_of_parse_and_map AHCI: Add DeviceIDs for Sunrise Point-LP SATA controller
2014-12-06Merge git://www.linux-watchdog.org/linux-watchdogLinus Torvalds1-1/+1
Pull watchdog fix from Wim Van Sebroeck: "Fix the watchdog mask bit offset for Exynos7" * git://www.linux-watchdog.org/linux-watchdog: watchdog: s3c2410_wdt: Fix the mask bit offset for Exynos7
2014-12-06Merge branch 'i2c/for-current' of ↵Linus Torvalds2-5/+14
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: "Here are two more driver bugfixes for I2C which would be good to have" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: cadence: Set the hardware time-out register to maximum value i2c: davinci: generate STP always when NACK is received
2014-12-05watchdog: s3c2410_wdt: Fix the mask bit offset for Exynos7Abhilash Kesavan1-1/+1
The watchdog mask bit offset listed for Exynos7 is incorrect. Fix this. Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com> Acked-by: Naveen Krishna Chatradhi <naveenkrishna.ch@gmail.com Reviewd-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2014-12-05Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds2-1/+3
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Thomas Gleixner: "Two final fixlets for 3.18: - Prevent microcode reload wreckage on 32bit - Unbreak cross compilation" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, microcode: Limit the microcode reloading to 64-bit for now x86: Use $(OBJDUMP) instead of plain objdump
2014-12-05Merge tag 'sound-3.18' of ↵Linus Torvalds1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixlet from Takashi Iwai: "Just one commit for adding a copule of HD-audio quirk entries" * tag 'sound-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda/realtek - Add headset Mic support for new Dell machine
2014-12-05ARM: dts: rk3288: add arm,cpu-registers-not-fw-configuredSonny Rao1-0/+1
This will enable use of physical arch timers on rk3288, where each core comes out of reset with a different virtual offset. Using physical timers will help with SMP booting on coreboot and older u-boot and should also allow suspend-resume and cpu-hotplug to work on all firmwares. Firmware which does initialize the cpu registers properly at boot and cpu-hotplug can remove this property from the device tree. Signed-off-by: Sonny Rao <sonnyrao@chromium.org> Signed-off-by: Olof Johansson <olof@lixom.net>
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