- 08 Sep, 2014 3 commits
-
-
Gaël PORTAY authored
Shutdown properly the timer counter block by masking interruptions. Otherwise, a segmentation may happen when kexec-ing a new kernel (see backtrace below). An interruption may happen before the handler is set, leading to a kernel segmentation fault. Furthermore, we make sure the interruptions are masked when the driver is initialized. This will prevent freshly kexec-ed kernel from crashing when launched from a kernel which does not properly mask interruptions at shutdown. The backtrace below happened after kexec-ing a new kernel, from a kernel that did not shut down properly leaving interruptions unmasked. Unable to handle kernel NULL pointer dereference at virtual address 00000000 pgd = c0004000 [00000000] *pgd=00000000 Internal error: Oops: 80000005 [#1] ARM Modules linked in: CPU: 0 PID: 1 Comm: swapper Not tainted 3.16.0+ #144 task: c1828aa0 ti: c182a000 task.ti: c182a000 PC is at 0x0 LR is at ch2_irq+0x28/0x30 pc : [<00000000>] lr : [<c01db904>] psr: 000000d3 sp : c182bd38 ip : c182bd48 fp : c182bd44 r10: c0373390 r9 : c1825b00 r8 : 60000053 r7 : 00000000 r6 : 00000000 r5 : 00000013 r4 : c036e800 r3 : 00000000 r2 : 00002004 r1 : c036e760 r0 : c036e760 Flags: nzcv IRQs off FIQs off Mode SVC_32 ISA ARM Segment kernel Control: 0005317f Table: 20004000 DAC: 00000017 Process swapper (pid: 1, stack limit = 0xc182a1c0) Stack: (0xc182bd38 to 0xc182c000) bd20: c182bd7c c182bd48 bd40: c0045430 c01db8ec 00000000 c18c6f40 c182bd74 c1825b00 c035cec4 00000000 bd60: c182be2c 60000053 c1825b34 00000000 c182bd94 c182bd80 c0045570 c0045408 bd80: 00000000 c1825b00 c182bdac c182bd98 c0047f34 c0045550 00000013 c036619c bda0: c182bdc4 c182bdb0 c0044da4 c0047e98 0000007f 00000013 c182bde4 c182bdc8 bdc0: c0009e34 c0044d8c fefff000 c0046728 60000053 ffffffff c182bdf4 c182bde8 bde0: c00086a8 c0009ddc c182be74 c182bdf8 c000cb80 c0008674 00000000 00000013 be00: 00000000 00014200 c1825b00 c036e800 00000013 c035ed98 60000053 c1825b34 be20: 00000000 c182be74 c182be20 c182be40 c0047994 c0046728 60000053 ffffffff be40: 00000013 c036e800 c182be64 c1825b00 00000013 c036e800 c035ed98 c03874bc be60: 00000004 c036e700 c182be94 c182be78 c004689c c0046398 c036e760 c18c6080 be80: 00000000 c035ed10 c182bedc c182be98 c0348b08 c004684c 0000000c c034dac8 bea0: 004c4b3f c028c338 c036e760 00000013 c014ecc8 c18e67e0 c035b9c0 c0348884 bec0: c035b9c0 c182a020 00000000 00000000 c182bf54 c182bee0 c00089fc c0348894 bee0: c00da51c c1ffcc78 c182bf0c c182bef8 c002d100 c002d09c c1ffcc78 00000000 bf00: c182bf54 c182bf10 c002d308 c0336570 c182bf3c c0334e44 00000003 00000003 bf20: 00000030 c0334b44 c0044d74 00000003 00000003 c034dac8 c0350a94 c0373440 bf40: c0373440 00000030 c182bf94 c182bf58 c0336d24 c000890c 00000003 00000003 bf60: c0336560 c182bf64 c182bf64 6e616e0d 00000000 c0272fc8 00000000 00000000 bf80: 00000000 00000000 c182bfac c182bf98 c0272fd8 c0336bd8 c182a000 00000000 bfa0: 00000000 c182bfb0 c00095d0 c0272fd8 00000000 00000000 00000000 00000000 bfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 bfe0: 00000000 00000000 00000000 00000000 00000013 00000000 374d27cd 33cc33e4 Backtrace: [<c01db8dc>] (ch2_irq) from [<c0045430>] (handle_irq_event_percpu+0x38/0x148) [<c00453f8>] (handle_irq_event_percpu) from [<c0045570>] (handle_irq_event+0x30/0x40) r10:00000000 r9:c1825b34 r8:60000053 r7:c182be2c r6:00000000 r5:c035cec4 r4:c1825b00 [<c0045540>] (handle_irq_event) from [<c0047f34>] (handle_fasteoi_irq+0xac/0x11c) r4:c1825b00 r3:00000000 [<c0047e88>] (handle_fasteoi_irq) from [<c0044da4>] (generic_handle_irq+0x28/0x38) r5:c036619c r4:00000013 [<c0044d7c>] (generic_handle_irq) from [<c0009e34>] (handle_IRQ+0x68/0x88) r4:00000013 r3:0000007f [<c0009dcc>] (handle_IRQ) from [<c00086a8>] (at91_aic_handle_irq+0x44/0x4c) r6:ffffffff r5:60000053 r4:c0046728 r3:fefff000 [<c0008664>] (at91_aic_handle_irq) from [<c000cb80>] (__irq_svc+0x40/0x4c) Exception stack(0xc182bdf8 to 0xc182be40) bde0: 00000000 00000013 be00: 00000000 00014200 c1825b00 c036e800 00000013 c035ed98 60000053 c1825b34 be20: 00000000 c182be74 c182be20 c182be40 c0047994 c0046728 60000053 ffffffff [<c0046388>] (__setup_irq) from [<c004689c>] (setup_irq+0x60/0x8c) r10:c036e700 r9:00000004 r8:c03874bc r7:c035ed98 r6:c036e800 r5:00000013 r4:c1825b00 [<c004683c>] (setup_irq) from [<c0348b08>] (tcb_clksrc_init+0x284/0x31c) r6:c035ed10 r5:00000000 r4:c18c6080 r3:c036e760 [<c0348884>] (tcb_clksrc_init) from [<c00089fc>] (do_one_initcall+0x100/0x1b4) r10:00000000 r9:00000000 r8:c182a020 r7:c035b9c0 r6:c0348884 r5:c035b9c0 r4:c18e67e0 [<c00088fc>] (do_one_initcall) from [<c0336d24>] (kernel_init_freeable+0x15c/0x224) r9:00000030 r8:c0373440 r7:c0373440 r6:c0350a94 r5:c034dac8 r4:00000003 [<c0336bc8>] (kernel_init_freeable) from [<c0272fd8>] (kernel_init+0x10/0xec) r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c0272fc8 r4:00000000 [<c0272fc8>] (kernel_init) from [<c00095d0>] (ret_from_fork+0x14/0x24) r4:00000000 r3:c182a000 Code: bad PC value ---[ end trace 5b30f0017e282e47 ]--- Kernel panic - not syncing: Fatal exception in interrupt Signed-off-by:
Gaël PORTAY <gael.portay@gmail.com> Acked-by:
Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by:
Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by:
Nicolas Ferre <nicolas.ferre@atmel.com>
-
Gaël PORTAY authored
Move resource retrieval from atmel_tc_alloc to tc_probe to avoid lately reporting resource related issues when a TC block user request a TC block. Moreover, resources retrieval are usually done in the probe function, thus moving them add some consistency with other drivers. Initialization is done once, ie not every time a tc block is requested. If it fails, the device is not appended to the list of tc blocks. Furhermore, the device id is retrieved at probe as well, avoiding parsing DT every time the user requests of tc block. Signed-off-by:
Thierry Reding <thierry.reding@gmail.com> Acked-by:
-
Gaël PORTAY authored
Signed-off-by:
-
- 19 Aug, 2014 4 commits
-
-
Boris BREZILLON authored
Remove all the material related to AIC5 support: this interrupt controller driver is now implemented in drivers/irqchip/atmel-aic.c. Signed-off-by:
-
Boris BREZILLON authored
Remove selection of OLD_IRQ_AT91 when selecting dt boards. Select ATMEL_AIC_IRQ for sama5 SoCs (a kernel compiled for this SoC will always use ATMEL_AIC_IRQ driver). Select ATMEL_AIC_IRQ for at91rm9200 and at91sam9 SoCs only if OLD_IRQ_AT91 is not selected (which means we are compiling a pure DT kernel, without any legacy board support). Remove specific irq init code in all dt board files: this init procedure is automatically handled in of_irq_init which is called by the arm irq core code and is in charge of calling the appropriate aic init functions. Signed-off-by:
-
Boris BREZILLON authored
Enclose at91_aic_xx calls in IS_ENABLED(CONFIG_OLD_IRQ_AT91) blocks in order to prepare migration to the new AIC driver. In the new AIC driver the suspend/resume functions are called by the generic irq framework and are no longer needed in the PM specific code. Moreover, the new AIC driver no longer exposes the at91_aic_base variable which is used by the at91_aic_read functions. Signed-off-by:
-
Boris BREZILLON authored
Introduce the OLD_IRQ_AT91 Kconfig option to prepare migration to the new AIC driver. Select this option for all at91 SoCs and all available boards so that we can later move DT enabled boards to the new irq driver and keep the old implementation when legacy boards are selected. Signed-off-by:
-
- 16 Aug, 2014 33 commits
-
-
Linus Torvalds authored
-
git://cavan.codon.org.uk/platform-drivers-x86Linus Torvalds authored
Pull x86 platform driver updates from Matthew Garrett: "A moderate number of changes, but nothing awfully significant. A lot of const cleanups, some reworking and additions to the rfkill quirks in the asus driver, a new driver for generating falling laptop events on Toshibas and some misc fixes. Maybe vendors have stopped inventing things" * 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86: (41 commits) platform/x86: Enable build support for toshiba_haps Documentation: Add file about toshiba_haps module platform/x86: Toshiba HDD Active Protection Sensor asus-nb-wmi: Add wapf4 quirk for the U32U alienware-wmi: make hdmi_mux enabled on case-by-case basis ideapad-laptop: Constify DMI table and other r/o variables asus-nb-wmi.c: Rename x401u quirk to wapf4 compal-laptop: correct invalid hwmon name toshiba_acpi: Add Qosmio X75-A to the alt keymap dmi list toshiba_acpi: Add extra check to backlight code Fix log message about future removal of interface ideapad-laptop: Disable touchpad interface on Yoga models asus-nb-wmi: Add wapf4 quirk for the X550CC intel_ips: Make ips_mcp_limits variables static thinkpad_acpi: Mark volume_alsa_control_{vol,mute} as __initdata fujitsu-laptop: Mark fujitsu_dmi_table[] DMI table as __initconst hp-wmi: Add missing __init annotations to initialization code hp_accel: Constify ACPI and DMI tables fujitsu-tablet: Mark DMI callbacks as __init code dell-laptop: Mark dell_quirks[] DMI table as __initconst ...
-
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linuxLinus Torvalds authored
Pull idle update from Len Brown: "Two Intel-platform-specific updates to intel_idle, and a cosmetic tweak to the turbostat utility" * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: tools/power turbostat: tweak whitespace in output format intel_idle: Broadwell support intel_idle: Disable Baytrail Core and Module C6 auto-demotion
-
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linuxLinus Torvalds authored
Pull module fix from Rusty Russell: "Nasty potential bug if someone uses a known module param with an invalid value (we don't fail unknown module params any more, just warn)" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: module: Clean up ro/nx after early module load failures
-
git://git.kernel.org/pub/scm/linux/kernel/git/amit/virtioLinus Torvalds authored
Pull virtio-rng update from Amit Shah: "Add derating factor for use by hwrng core Sending directly to you with the commit log changes Ted Ts'o pointed out. Not sure if Rusty's back after his travel, but this already has his s-o-b" * 'rng-queue' of git://git.kernel.org/pub/scm/linux/kernel/git/amit/virtio: virtio: rng: add derating factor for use by hwrng core
-
git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfsLinus Torvalds authored
Pull btrfs updates from Chris Mason: "These are all fixes I'd like to get out to a broader audience. The biggest of the bunch is Mark's quota fix, which is also in the SUSE kernel, and makes our subvolume quotas dramatically more accurate. I've been running xfstests with these against your current git overnight, but I'm queueing up longer tests as well" * 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: btrfs: disable strict file flushes for renames and truncates Btrfs: fix csum tree corruption, duplicate and outdated checksums Btrfs: Fix memory corruption by ulist_add_merge() on 32bit arch Btrfs: fix compressed write corruption on enospc btrfs: correctly handle return from ulist_add btrfs: qgroup: account shared subtrees during snapshot delete Btrfs: read lock extent buffer while walking backrefs Btrfs: __btrfs_mod_ref should always use no_quota btrfs: adjust statfs calculations according to raid profiles
-
git://git.samba.org/jlayton/linuxLinus Torvalds authored
Pull file locking bugfixes from Jeff Layton: "Most of these patches are to fix a long-standing regression that crept in when the BKL was removed from the file-locking code. The code was converted to use a conventional spinlock, but some fl_release_private ops can block and you can end up sleeping inside the lock. There's also a patch to make /proc/locks show delegations as 'DELEG'" * tag 'locks-v3.17-2' of git://git.samba.org/jlayton/linux: locks: update Locking documentation to clarify fl_release_private behavior locks: move locks_free_lock calls in do_fcntl_add_lease outside spinlock locks: defer freeing locks in locks_delete_lock until after i_lock has been dropped locks: don't reuse file_lock in __posix_lock_file locks: don't call locks_release_private from locks_copy_lock locks: show delegations as "DELEG" in /proc/locks
-
git://git.kvack.org/~bcrl/aio-nextLinus Torvalds authored
Pull aio updates from Ben LaHaise. * git://git.kvack.org/~bcrl/aio-next: aio: use iovec array rather than the single one aio: fix some comments aio: use the macro rather than the inline magic number aio: remove the needless registration of ring file's private_data aio: remove no longer needed preempt_disable() aio: kill the misleading rcu read locks in ioctx_add_table() and kill_ioctx() aio: change exit_aio() to load mm->ioctx_table once and avoid rcu_read_lock()
-
Azael Avalos authored
Makefile and Kconfig build support patch for the newly introduced kernel module toshiba_haps. Signed-off-by:
Azael Avalos <coproscefalo@gmail.com> Signed-off-by:
Matthew Garrett <matthew.garrett@nebula.com>
-
Azael Avalos authored
This patch provides information about the Toshiba HDD Active Protection Sensor driver module toshiba_haps. Signed-off-by:
-
Azael Avalos authored
This driver adds support for the built-in accelereometer found on recent Toshiba laptops with HID TOS620A. This driver receives ACPI notify events 0x80 when the sensor detects a sudden move or a harsh vibration, as well as an ACPI notify event 0x81 whenever the movement or vibration has been stabilized. Also provides sysfs entries to get/set the desired protection level and reseting the HDD protection interface. Signed-off-by:
-
Hans de Goede authored
As reported here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1173681 the U32U needs wapf=4 too. Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
-
Mario Limonciello authored
Not all HW supporting WMAX method will support the HDMI mux feature. Explicitly quirk the HW that does support it. Signed-off-by:
Mario Limonciello <mario_limonciello@dell.com> Signed-off-by:
-
Mathias Krause authored
Constify the rfkill_blacklist[] DMI table, the ideapad_rfk_data[] table and the ideapad_attribute_group attribute group. There's no need to have them writeable during runtime. Signed-off-by:
Mathias Krause <minipli@googlemail.com> Cc: Ike Panhc <ike.pan@canonical.com> Signed-off-by:
-
Hans de Goede authored
The actual x401u does not use the so named x401u quirk but the x55u quirk. All that the x401u quirk does it setting wapf to 4, so rename it to wapf4 to stop the confusion. Signed-off-by:
-
Roald Frederickx authored
Change the name of the hwmon interface from "compal-laptop" to "compal". A dash is an invalid character for a hwmon name and caused the call to hwmon_device_register_with_groups() to fail. Signed-off-by:
Roald Frederickx <roald.frederickx@gmail.com> Signed-off-by:
-
Azael Avalos authored
The Toshiba Qosmio X75-A series models also come with the new keymap layout. This patch adds this model to the alt_keymap_dmi list, along with an extra key found on these models. Signed-off-by:
-
Azael Avalos authored
Some Toshiba models (most notably Qosmios) come with an incomplete backlight method where the AML code doesn't check for write or read commands and always returns HCI_SUCCESS and the actual brightness (and in some cases the max brightness), thus allowing the backlight interface to be registered without write support. This patch changes the set_lcd_brightness function, checking the returned values for values greater than zero to avoid registering a broken backlight interface. Signed-off-by:
-
Martin Kepplinger authored
If this is going away, it won't be in 2012. Signed-off-by:
Martin Kepplinger <martink@posteo.de> Signed-off-by:
-
Hans de Goede authored
Yoga models don't offer touchpad ctrl through the ideapad interface, causing ideapad_sync_touchpad_state to send wrong touchpad enable/disable events. Signed-off-by:
-
Hans de Goede authored
As reported here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1173681 the X550CC needs wapf=4 too. Signed-off-by:
-
Mathias Krause authored
These variables don't need to be visible outside of this compilation unit, make them static. Signed-off-by:
-
Mathias Krause authored
Mark volume_alsa_control_vol and volume_alsa_control_mute as __initdata, as snd_ctl_new1() will copy the relevant parts, so there is no need to keep the master copies around after initialization. Signed-off-by:
-
Mathias Krause authored
The DMI table is only ever used during initialization. Mark it as __initconst so its memory can be released afterwards -- roughly 1.5 kB. In turn, the callback functions can be marked with __init, too. Signed-off-by:
-
Mathias Krause authored
These functions are only called from other initialization routines, so can be marked __init, too. Signed-off-by:
-
Mathias Krause authored
Constify the lis3lv02d_device_ids[] ACPI and the lis3lv02d_dmi_ids[] DMI tables. There's no need to have them writeable during runtime. Signed-off-by:
-
Mathias Krause authored
The DMI table is already marked as __initconst, so can be the callback functions as they're only used in that context. Signed-off-by:
-
Mathias Krause authored
The dell_quirks[] DMI table is only ever used during initialization. Mark it as __initconst so its memory can be released afterwards -- roughly 5.7 kB. In turn, the callback function can be marked with __init, too. Also the touchpad_led_init() function can be marked __init as it's only referenced from dell_init() -- an __init function. Signed-off-by:
-
Mathias Krause authored
Constify the asus_quirks[] DMI table. There's no need to have it writeable during runtime. Signed-off-by:
-
Mathias Krause authored
Quite a lot of code and data of acer-wmi.c is only ever used during initialization. Mark those accordingly -- and constify, where appropriate -- so the memory can be released afterwards. All in all those changes move ~10 kB of code and data to the .init sections, marking them for release after initialization has finished. Signed-off-by:
-
Mathias Krause authored
Constify the asus_quirks[] DMI table. There's no need to have it writeable during runtime. Signed-off-by:
-
Mathias Krause authored
The DMI table is only ever used during initialization. Mark it as __initconst so its memory can be released appropriately. In turn, the callback function can be marked with __init, too. Signed-off-by:
-
Mathias Krause authored
Encapsulate acer_suspend() and acer_resume with #ifdef CONFIG_PM_SLEEP to get rid of the following warnings: ../acer-wmi.c:2046:12: warning: ‘acer_suspend’ defined but not used [-Wunused-function] ../acer-wmi.c:2068:12: warning: ‘acer_resume’ defined but not used [-Wunused-function] Signed-off-by:
-
