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| * | pwm: Add Ingenic JZ4740 supportThierry Reding2012-10-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit moves the driver to drivers/pwm and converts it to the new PWM framework. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Tested-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Ralf Baechle <ralf@linux-mips.org>
| * | MIPS: JZ4740: Export timer APIThierry Reding2012-10-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a prerequisite for allowing the PWM driver to be converted to the PWM framework. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Tested-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Ralf Baechle <ralf@linux-mips.org>
* | | Merge branch 'akpm' (Andrew's patch-bomb)Linus Torvalds2012-10-09
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge patches from Andrew Morton: "A few misc things and very nearly all of the MM tree. A tremendous amount of stuff (again), including a significant rbtree library rework." * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (160 commits) sparc64: Support transparent huge pages. mm: thp: Use more portable PMD clearing sequenece in zap_huge_pmd(). mm: Add and use update_mmu_cache_pmd() in transparent huge page code. sparc64: Document PGD and PMD layout. sparc64: Eliminate PTE table memory wastage. sparc64: Halve the size of PTE tables sparc64: Only support 4MB huge pages and 8KB base pages. memory-hotplug: suppress "Trying to free nonexistent resource <XXXXXXXXXXXXXXXX-YYYYYYYYYYYYYYYY>" warning mm: memcg: clean up mm_match_cgroup() signature mm: document PageHuge somewhat mm: use %pK for /proc/vmallocinfo mm, thp: fix mlock statistics mm, thp: fix mapped pages avoiding unevictable list on mlock memory-hotplug: update memory block's state and notify userspace memory-hotplug: preparation to notify memory block's state at memory hot remove mm: avoid section mismatch warning for memblock_type_name make GFP_NOTRACK definition unconditional cma: decrease cc.nr_migratepages after reclaiming pagelist CMA: migrate mlocked pages kpageflags: fix wrong KPF_THP on non-huge compound pages ...
| * | | mm: hugetlb: add arch hook for clearing page flags before entering poolWill Deacon2012-10-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The core page allocator ensures that page flags are zeroed when freeing pages via free_pages_check. A number of architectures (ARM, PPC, MIPS) rely on this property to treat new pages as dirty with respect to the data cache and perform the appropriate flushing before mapping the pages into userspace. This can lead to cache synchronisation problems when using hugepages, since the allocator keeps its own pool of pages above the usual page allocator and does not reset the page flags when freeing a page into the pool. This patch adds a new architecture hook, arch_clear_hugepage_flags, so that architectures which rely on the page flags being in a particular state for fresh allocations can adjust the flags accordingly when a page is freed into the pool. Signed-off-by: Will Deacon <will.deacon@arm.com> Cc: Michal Hocko <mhocko@suse.cz> Reviewed-by: Michal Hocko <mhocko@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds2012-10-09
|\ \ \ \ | |/ / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull MIPS update from Ralf Baechle: "This is the MIPS update for 3.7. A fair chunk of them are platform updates to the Cavium Octeon SOC (which involves machine generated header files of considerable size), Atheros ATH79xx, RMI aka Netlogic aka Broadcom XLP, Broadcom BCM63xx platforms. Support for the commercial MIPS simulator MIPSsim has been removed as MIPS Technologies is shifting away from this product and Qemu is offering various more powerful platforms. The generic MIPS code can now also probe for no-execute / write-only TLB features implemented without the full SmartMIPS extension as permitted by the latest MIPS processor architecture. Lots of small changes to generic code." * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (78 commits) MIPS: ath79: Fix CPU/DDR frequency calculation for SRIF PLLs MIPS: ath79: use correct fractional dividers for {CPU,DDR}_PLL on AR934x MIPS: BCM63XX: Properly handle mac address octet overflow MIPS: Kconfig: Avoid build errors by hiding USE_OF from the user. MIPS: Replace `-' in defconfig filename wth `_' for consistency. MIPS: Wire kcmp syscall. MIPS: MIPSsim: Remove the MIPSsim platform. MIPS: NOTIFY_RESUME is not needed in TIF masks MIPS: Merge the identical "return from syscall" per-ABI code MIPS: Unobfuscate _TIF..._MASK MIPS: Prevent hitting do_notify_resume() with !user_mode(regs). MIPS: Replace 'kernel_uses_smartmips_rixi' with 'cpu_has_rixi'. MIPS: Add base architecture support for RI and XI. MIPS: Optimise TLB handlers for MIPS32/64 R2 cores. MIPS: uasm: Add INS and EXT instructions. MIPS: Avoid pipeline stalls on some MIPS32R2 cores. MIPS: Make VPE count to be one-based. MIPS: Add new end of interrupt functionality for GIC. MIPS: Add EIC support for GIC. MIPS: Code clean-ups for the GIC. ...
| * | | Merge branch 'master' of git://dev.phrozen.org/mips-next into ↵Ralf Baechle2012-10-05
| |\ \ \ | | | | | | | | | | | | | | | mips-for-linux-next
| | * | | MIPS: BCM63XX: remove bogus ENETSW_TXDMA interrupts from BCM6328Jonas Gorski2012-08-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These were erroneously copied from BCM6368. BCM6328 does not expose the ENETSW_TXDMA interrupts, and BCM_6328_HIGH_IRQ_BASE + 7 is actually used for the second UART. Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/4090/ Signed-off-by: John Crispin <blogic@openwrt.org>
| | * | | MIPS: BCM63XX: add external irq support for BCM6345Maxime Bizon2012-08-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the missing definitions for BCM6345. Signed-off-by: Maxime Bizon <mbizon@freebox.fr> Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/4091/ Signed-off-by: John Crispin <blogic@openwrt.org>
| | * | | MIPS: OCTEON: Add register definitions for SPI host hardware.David Daney2012-08-22
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | Needed by SPI driver. Signed-off-by: David Daney <david.daney@cavium.com> Patchwork: http://patchwork.linux-mips.org/patch/3796/ Signed-off-by: John Crispin <blogic@openwrt.org>
| * | | MIPS: ath79: Fix CPU/DDR frequency calculation for SRIF PLLsGabor Juhos2012-10-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Besides the CPU and DDR PLLs, the CPU and DDR frequencies can be derived from other PLLs in the SRIF block on the AR934x SoCs. The current code does not checks if the SRIF PLLs are used and this can lead to incorrectly calculated CPU/DDR frequencies. Fix it by calculating the frequencies from SRIF PLLs if those are used on a given board. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: <stable@vger.kernel.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/4324/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | Merge branch 'ralf-3.7' of ↵Ralf Baechle2012-09-28
| |\ \ \ | | | | | | | | | | | | | | | git://git.linux-mips.org/pub/scm/sjhill/linux-sjhill into mips-for-linux-next
| | * | | MIPS: uasm: Add INS and EXT instructions.Steven J. Hill2012-09-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These are MIPS32R2 instructions for merging and extracting bit fields from one GPR into another. Signed-off-by: Steven J. Hill <sjhill@mips.com>
| | * | | MIPS: Code clean-ups for the GIC.Steven J. Hill2012-09-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix whitespace, beautify the code and remove debug statements. Signed-off-by: Steven J. Hill <sjhill@mips.com>
| | * | | MIPS: Make GIC code platform independent.Steven J. Hill2012-09-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The GIC interrupt code is used by multiple platforms and the current code was half Malta dependent code. These changes abstract away the platform specific differences. Signed-off-by: Steven J. Hill <sjhill@mips.com>
| | * | | MIPS: Add core files for MIPS SEAD-3 development platform.Steven J. Hill2012-09-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | More information about the SEAD-3 platform can be found at <http://www.mips.com/products/development-kits/mips-sead-3/> on MTI's site. Currently, the M14K family of cores is what the SEAD-3 is utilised with. Signed-off-by: Douglas Leung <douglas@mips.com> Signed-off-by: Chris Dearman <chris@mips.com> Signed-off-by: Steven J. Hill <sjhill@mips.com>
| | * | | MIPS: Add support for the 1074K core.Steven J. Hill2012-09-13
| | |/ / | | | | | | | | | | | | Signed-off-by: Steven J. Hill <sjhill@mips.com>
| * | | Merge branch 'rixi-3.7' of ↵Ralf Baechle2012-09-28
| |\ \ \ | | | | | | | | | | | | | | | git://git.linux-mips.org/pub/scm/sjhill/linux-sjhill into mips-for-linux-next
| | * | | MIPS: Replace 'kernel_uses_smartmips_rixi' with 'cpu_has_rixi'.Steven J. Hill2012-09-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove usage of the 'kernel_uses_smartmips_rixi' macro from all files and use new 'cpu_has_rixi' instead. Signed-off-by: Steven J. Hill <sjhill@mips.com> Acked-by: David Daney <david.daney@cavium.com>
| | * | | MIPS: Add base architecture support for RI and XI.Steven J. Hill2012-09-13
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Originally both Read Inhibit (RI) and Execute Inhibit (XI) were supported by the TLB only for a SmartMIPS core. The MIPSr3(TM) Architecture now defines an optional feature to implement these TLB bits separately. Support for one or both features can be checked by looking at the Config3.RXI bit. Signed-off-by: Steven J. Hill <sjhill@mips.com> Acked-by: David Daney <david.daney@cavium.com>
| * | | Merge branch 'broadcom' of git://dev.phrozen.org/mips-next into ↵Ralf Baechle2012-09-27
| |\ \ \ | | | | | | | | | | | | | | | mips-for-linux-next
| | * | | MIPS: BCM63XX: Create platform_device for USBDKevin Cernekee2012-08-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Reviewed-by: Jonas Gorski <jonas.gorski@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/4111/ Signed-off-by: John Crispin <blogic@openwrt.org>
| | * | | MIPS: BCM63XX: Add register and IRQ definitions for USB 2.0 deviceKevin Cernekee2012-08-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/4084/ Signed-off-by: John Crispin <blogic@openwrt.org>
| | * | | MIPS: BCM63XX: Fix USB IRQ definitions for 6328Kevin Cernekee2012-08-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | OHCI/EHCI are in the high (second) word. Not currently used by any driver. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/4026/ Signed-off-by: John Crispin <blogic@openwrt.org>
| | * | | MIPS: BCM63XX: Add register definitions for USBD dependenciesKevin Cernekee2012-08-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The USB 2.0 device depends on some functionality in other blocks, such as GPIO and USBH. Add those register definitions here. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/4025/ Signed-off-by: John Crispin <blogic@openwrt.org>
| | * | | MIPS: BCM63XX: Add new IUDMA definitions needed for USBDKevin Cernekee2012-08-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/4083/ Signed-off-by: John Crispin <blogic@openwrt.org>
| | * | | MIPS: BCM63XX: Move DMA descriptor definition into common header fileKevin Cernekee2012-08-30
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The "IUDMA" engine used by bcm63xx_enet is also used by other blocks, such as the USB 2.0 device. Move the definitions into a common file so that they do not need to be duplicated in each driver. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/4082/ Signed-off-by: John Crispin <blogic@openwrt.org>
| * | | Merge branch 'ath79' of git://dev.phrozen.org/mips-next into mips-for-linux-nextRalf Baechle2012-09-27
| |\ \ \
| | * | | MIPS: ath79: add USB platform setup code for AR934XGabor Juhos2012-08-28
| | | |/ | | |/| | | | | | | | | | | | | | | | | Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/4172/ Signed-off-by: John Crispin <blogic@openwrt.org>
| * | | Merge branch 'lantiq' of git://dev.phrozen.org/mips-next into ↵Ralf Baechle2012-09-27
| |\ \ \ | | | | | | | | | | | | | | | mips-for-linux-next
| | * | | MIPS: lantiq: make use of __gpio_to_irqJohn Crispin2012-09-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The gpio_chip struct allows us to set a .to_irq callback. Once this is set we can rely on the generic __gpio_to_irq() function to map gpio->irq allowing more than one gpio_chip to register an interrupt Signed-off-by: John Crispin <blogic@openwrt.org>
| | * | | OF: pinctrl: MIPS: lantiq: adds support for FALCON SoCJohn Crispin2012-09-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement support for pinctrl on lantiq/falcon socs. The FALCON has 5 banks of up to 32 pins. Signed-off-by: John Crispin <blogic@openwrt.org> Signed-off-by: Thomas Langer <thomas.langer@lantiq.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: devicetree-discuss@lists.ozlabs.org Cc: linux-kernel@vger.kernel.org
| | * | | MIPS: lantiq: split up IRQ IM rangesJohn Crispin2012-08-22
| | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | | | | | Up to now all our SoCs had the 5 IM ranges in a consecutive order. To accomodate the SVIP we need to support IM ranges that are scattered inside the register range. Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/4237/
| * | | Merge branch 'cn6xxx-mgmt' of ↵Ralf Baechle2012-09-27
| |\ \ \ | | | | | | | | | | | | | | | git://git.linux-mips.org/pub/scm/daney/upstream-daney into mips-for-linux-next
| | * | | MIPS: Octeon: Add octeon_io_clk_delay() function.David Daney2012-08-31
| | | |/ | | |/| | | | | | | | | | | | | | | | | | | | | Also cleanup and fix octeon_init_cvmcount() Signed-off-by: David Daney <ddaney@caviumnetworks.com> Acked-by: David S. Miller <davem@davemloft.net>
| * | | Merge branch 'cn68xx-ciu2' of ↵Ralf Baechle2012-09-27
| |\ \ \ | | | | | | | | | | | | | | | git://git.linux-mips.org/pub/scm/daney/upstream-daney into mips-for-linux-next
| | * | | MIPS: OCTEON: Add support for cn68XX interrupt controller.David Daney2012-08-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cn68XX has a new interrupt controller named CIU2, add support for this, and use it if cn68XX detected at runtime. Signed-off-by: David Daney <david.daney@cavium.com>
| | * | | MIPS: OCTEON: Add OCTEON_IRQ_* definitions for cn68XX chips.David Daney2012-08-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are 64 workqueue, 32 watchdog, and 4 mbox. Signed-off-by: David Daney <david.daney@cavium.com>
| | * | | MIPS: OCTEON: Update register definitions.David Daney2012-08-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for cn68xx, cn61xx, cn63xx, cn66xx and cnf71XX. Add little-endian register layouts. Patch cvmx-interrupt-rsl.c for changed definition. Signed-off-by: David Daney <david.daney@cavium.com>
| | * | | MIPS: OCTEON: Add detection of cnf71xx parts.David Daney2012-08-31
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Also add cvmx_get_octeon_family(). Both of these are needed by the upcoming register definition refresh patch. Signed-off-by: David Daney <david.daney@cavium.com>
| * | | MIPS: Wire kcmp syscall.Ralf Baechle2012-09-26
| | | | | | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | MIPS: MIPSsim: Remove the MIPSsim platform.Steven J. Hill2012-09-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The MIPSsim platform is no longer supported or used. [ralf@linux-mips.org: Also remove mipssim from arch/mips/Kbuild.platforms and delete arch/mips/include/asm/mach-mipssim/*.] Signed-off-by: Steven J. Hill <sjhill@mips.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/4350/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | MIPS: NOTIFY_RESUME is not needed in TIF masksAl Viro2012-09-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If it's set, SIGPENDING is also set. And SIGPENDING is present in the masks... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | MIPS: Unobfuscate _TIF..._MASKAl Viro2012-09-22
| | |/ | |/| | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | | compat: move compat_siginfo_t definition to asm/compat.hDenys Vlasenko2012-10-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a preparatory patch for the introduction of NT_SIGINFO elf note. Make the location of compat_siginfo_t uniform across eight architectures which have it. Now it can be pulled in by including asm/compat.h or linux/compat.h. Most of the copies are verbatim. compat_uid[32]_t had to be replaced by __compat_uid[32]_t. compat_uptr_t had to be moved up before compat_siginfo_t in asm/compat.h on a several architectures (tile already had it moved up). compat_sigval_t had to be relocated from linux/compat.h to asm/compat.h. Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Amerigo Wang <amwang@redhat.com> Cc: "Jonathan M. Foote" <jmfoote@cert.org> Cc: Roland McGrath <roland@hack.frob.com> Cc: Pedro Alves <palves@redhat.com> Cc: Fengguang Wu <fengguang.wu@intel.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | UAPI: (Scripted) Set up UAPI Kbuild filesDavid Howells2012-10-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Set up empty UAPI Kbuild files to be populated by the header splitter. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
* | | UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel ↵David Howells2012-10-02
| |/ |/| | | | | | | | | | | | | | | | | | | | | system headers Convert #include "..." to #include <path/...> in kernel system headers. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
* | MIPS: ath79: don't hardcode the unavailability of the DSP ASEGabor Juhos2012-08-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The ath79 platform code allows to run a single kernel image on various SoCs which are based on the 24Kc and 74Kc cores. The current code explicitely disables the DSP ASE, but that is available in the 74Kc core. Remove the override in order to let the kernel to detect the availability of the DSP ASE at runtime. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/4222/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | MIPS: Synchronize MIPS count one CPU at a timeJayachandran C2012-08-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current implementation of synchronise_count_{master,slave} blocks slave CPUs in early boot until all of them come up. This no longer works because blocking a CPU with interrupts off after notifying the CPU to be online causes problems with the current kernel. Specifically, after the workqueue changes (commit a08489c569dc1 "Pull workqueue changes from Tejun Heo") the CPU_ONLINE notification callback workqueue_cpu_up_callback() will hang on wait_for_completion(&idle_rebind.done), if the slave CPUs are blocked for synchronize_count_slave(). The changes are to update synchronize_count_{master,slave}() to handle one CPU at a time and to call synchronise_count_master() in __cpu_up() so that the CPU_ONLINE notification goes out only after the COP0 COUNT register is synchronized. [ralf@linux-mips.org: This matter only to those few platforms which are using the cp0 counter as their clocksource which are XLP, XLR and MIPS' CMP solution.] Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/4216/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | MIPS: BCM63xx: Fix SPI message control register handling for BCM6338/6348.Florian Fainelli2012-08-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BCM6338 and BCM6348 have a message control register width of 8 bits, instead of 16-bits like what the SPI driver assumes right now. Also the SPI message type shift value of 14 is actually 6 for these SoCs. This resulted in transmit FIFO corruption because we were writing 16-bits to an 8-bits wide register, thus spanning on the first byte of the transmit FIFO, which had already been filed in bcm63xx_spi_fill_txrx_fifo(). Fix this by passing the message control register width and message type shift through platform data back to the SPI driver so that it can use it properly. Signed-off-by: Florian Fainelli <florian@openwrt.org> Cc: linux-mips@linux-mips.org Cc: grant.likely@secretlab.ca Cc: spi-devel-general@lists.sourceforge.net Cc: jonas.gorski@gmail.com Patchwork: https://patchwork.linux-mips.org/patch/3983/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | MIPS: Fix race condition in module relocation code.Ralf Baechle2012-08-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The relocation code was essentially taken from the 2.4 modutils which perform relocation in userspace. In 2.6 relocation of multiple modules may be performed in parallel by the in-kernel loader so the global variable mips_hi16_list won't fly anymore. Fix race by moving it into mod_arch_specific. [ralf@linux-mips.org: folded in Tony's followup fix. Thanks Tony!] Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Tony Wu <tung7970@gmail.com> Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/4189/
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