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2013-05-09xtensa: Switch to asm-generic/linkage.hGeert Uytterhoeven2-16/+1
Signed-off-by: Geert Uytterhoeven <[email protected]>
2013-05-09xtensa: fix redboot load addressChris Zankel1-1/+1
With the patch to support MMUv3, the base address for the loaded binary image has changed, and a fix was applied to the U-Boot image. This fixes the RedBoot image. Signed-off-by: Chris Zankel <[email protected]>
2013-05-09xtensa: ISS: fix timer_lock usage in rs_openMax Filippov1-2/+2
This fixes the following lockdep splat: [ 66.460000] ================================= [ 66.460000] [ INFO: inconsistent lock state ] [ 66.460000] 3.9.0-rc5-00161-ga48dd49 #4 Not tainted [ 66.460000] --------------------------------- [ 66.460000] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. [ 66.460000] swapper/1 [HC0[0]:SC1[1]:HE1:SE0] takes: [ 66.460000] (timer_lock){+.?...}, at: [<d0006cde>] rs_poll+0x12/0xdc [ 66.460000] {SOFTIRQ-ON-W} state was registered at: [ 66.460000] [<d00421f0>] lock_acquire+0xec/0x13c [ 66.460000] [<d01ea036>] _raw_spin_lock+0x3a/0x84 [ 66.460000] [<d0006c8c>] rs_open+0x18/0x58 [ 66.460000] [<d0139ea2>] tty_open+0x262/0x3cc [ 66.460000] [<d00942e0>] chrdev_open+0x8c/0xe0 [ 66.460000] [<d00907b2>] do_dentry_open$isra$16+0x10e/0x190 [ 66.460000] [<d0091141>] finish_open+0x39/0x48 [ 66.460000] [<d009a0b4>] do_last$isra$34+0x6c4/0x824 [ 66.460000] [<d009a27a>] path_openat+0x66/0x310 [ 66.460000] [<d009a53a>] do_filp_open+0x16/0x44 [ 66.460000] [<d0091445>] do_sys_open+0xd5/0x13c [ 66.460000] [<d00914be>] sys_open+0x12/0x18 [ 66.460000] [<d0413ffc>] kernel_init_freeable+0xe4/0x12c [ 66.460000] [<d01e2a9c>] kernel_init+0xc/0x9c [ 66.460000] [<d00044fc>] ret_from_kernel_thread+0x8/0xc [ 66.460000] irq event stamp: 132542 [ 66.460000] hardirqs last enabled at (132542): [<d01ea2ec>] _raw_spin_unlock_irq+0x30/0x44 [ 66.460000] hardirqs last disabled at (132541): [<d01ea11e>] _raw_spin_lock_irq+0xe/0x8c [ 66.460000] softirqs last enabled at (132234): [<d0017d32>] __do_softirq+0x216/0x2a4 [ 66.460000] softirqs last disabled at (132539): [<d0018024>] irq_exit+0x38/0x40 [ 66.460000] [ 66.460000] other info that might help us debug this: [ 66.460000] Possible unsafe locking scenario: [ 66.460000] [ 66.460000] CPU0 [ 66.460000] ---- [ 66.460000] lock(timer_lock); [ 66.460000] <Interrupt> [ 66.460000] lock(timer_lock); [ 66.460000] [ 66.460000] *** DEADLOCK *** [ 66.460000] [ 66.460000] 1 lock held by swapper/1: [ 66.460000] #0: (((&serial_timer))){+.-...}, at: [<d001c65c>] call_timer_fn+0x0/0x1f0 [ 66.460000] Stack: d7c2fac0 00000018 00000004 00000001 d7c2faa0 00000004 00000006 d7c2fa90 9003e87c d7c2fae0 d7c30000 d025a87c 00000001 0000000f 00000000 d7c2fac0 9004005d d7c2fb10 d7c30000 d7c30338 00000001 00000001 00000000 d7c30338 [ 66.460000] Call Trace: [ 66.460000] [<d01e4f93>] print_usage_bug$part$26+0x1c3/0x1c8 [ 66.460000] [<d003e87c>] mark_lock+0x2b4/0x440 [ 66.460000] [<d004005d>] __lock_acquire+0x54d/0x16c4 [ 66.460000] [<d00421f0>] lock_acquire+0xec/0x13c [ 66.460000] [<d01ea036>] _raw_spin_lock+0x3a/0x84 [ 66.460000] [<d0006cde>] rs_poll+0x12/0xdc [ 66.460000] [<d001c71a>] call_timer_fn+0xbe/0x1f0 [ 66.460000] [<d001cd90>] run_timer_softirq+0x198/0x1f4 [ 66.460000] [<d0017c30>] __do_softirq+0x114/0x2a4 [ 66.460000] [<d0018024>] irq_exit+0x38/0x40 [ 66.460000] [<d00046c0>] do_IRQ+0x44/0x48 [ 66.460000] [<d0005c58>] do_interrupt+0x4c/0x54 [ 66.460000] [<d0003c80>] common_exception_return+0x0/0x5c [ 66.460000] [<d006682c>] free_pcppages_bulk+0x254/0x308 [ 66.460000] Signed-off-by: Max Filippov <[email protected]> Signed-off-by: Chris Zankel <[email protected]>
2013-05-09xtensa: disable IRQs while IRQ handler is runningMax Filippov3-55/+28
IRQ handlers are expected to run with IRQs disabled. See e.g. http://lwn.net/Articles/380931/ for a longer story. This was overlooked in the commit 2d1c645 xtensa: dispatch medium-priority interrupts Revert to old behavior and simplify interrupt entry and exit code. Interrupt handler still honours IRQ priority. do_notify_resume/schedule must be called with interrupts enabled, enable interrupts if we return from user exception. Signed-off-by: Max Filippov <[email protected]> Signed-off-by: Chris Zankel <[email protected]>
2013-05-09xtensa: enable lockdep supportMax Filippov1-3/+4
Signed-off-by: Max Filippov <[email protected]> Signed-off-by: Chris Zankel <[email protected]>
2013-05-09xtensa: fix arch_irqs_disabled_flags implementationMax Filippov1-1/+4
IRQs are disabled when PS.EXCM is set or PS.INTLEVEL is equal to or higher than LOCKLEVEL. Signed-off-by: Max Filippov <[email protected]> Signed-off-by: Chris Zankel <[email protected]>
2013-05-09xtensa: add irq flags trace supportMax Filippov2-0/+35
Signed-off-by: Max Filippov <[email protected]> Signed-off-by: Chris Zankel <[email protected]>
2013-05-09xtensa: provide custom CALLER_ADDR* implementationsMax Filippov2-1/+66
Definition of CALLER_ADDR* through __builtin_return_address makes compiler insert calls to __xtensa_libgcc_window_spill, which in turn makes fast_syscall_spill_registers syscall that clobbers registers when called from the kernel mode, leading to invalid opcode exceptions on return to userspace. Provide definition for CALLER_ADDR0 as MAKE_PC_FROM_RA(a0, a1) and in case CONFIG_FRAME_POINTER is enabled extract CALLER_ADDR{1-3} from stack. Signed-off-by: Max Filippov <[email protected]> Signed-off-by: Chris Zankel <[email protected]>
2013-05-09xtensa: add stacktrace supportMax Filippov5-41/+140
Signed-off-by: Max Filippov <[email protected]> Signed-off-by: Chris Zankel <[email protected]>
2013-05-09xtensa: clean up stpill_registersMax Filippov1-3/+2
- remove unused asm parameters; - fix EXCM bit setting in the PS SR during _spill_registers call. Signed-off-by: Max Filippov <[email protected]> Signed-off-by: Chris Zankel <[email protected]>
2013-05-09xtensa: don't use a7 in simcallsMax Filippov3-18/+18
To support FRAME_POINTER avoid using a7 in __simc (none of the existing simcalls needs it). Replace calls to __simc with more specific simc_read, simc_write and simc_lseek calls. Signed-off-by: Max Filippov <[email protected]> Signed-off-by: Chris Zankel <[email protected]>
2013-05-09xtensa: don't attempt to use unconfigured timersMax Filippov1-3/+6
Signed-off-by: Max Filippov <[email protected]> Signed-off-by: Chris Zankel <[email protected]>
2013-05-09xtensa: provide default platform_pcibios_init implementationMax Filippov2-6/+1
This fixes the following build error: arch/xtensa/kernel/built-in.o:(.init.literal+0xe8): undefined reference to `platform_pcibios_init' arch/xtensa/kernel/built-in.o: In function `setup_arch': (.init.text+0x20e): undefined reference to `platform_pcibios_init' and allows platform to omit definition of platform_pcibios_init if it's empty. Signed-off-by: Max Filippov <[email protected]> Signed-off-by: Chris Zankel <[email protected]>
2013-05-09xtensa: remove KCORE_ELF againPaul Bolle1-15/+0
The Kconfig symbol KCORE_ELF was removed in v2.6.0, but reappeared in two architectures. It is useless. Remove it again. Signed-off-by: Paul Bolle <[email protected]> Signed-off-by: Max Filippov <[email protected]> Signed-off-by: Chris Zankel <[email protected]>
2013-05-09xtensa: document MMUv3 setup sequenceMax Filippov1-0/+46
Signed-off-by: Max Filippov <[email protected]> Signed-off-by: Chris Zankel <[email protected]>
2013-05-09xtensa: add MMU v3 supportMax Filippov12-86/+451
MMUv3 comes out of reset with identity vaddr -> paddr mapping in the TLB way 6: Way 6 (512 MB) Vaddr Paddr ASID Attr RWX Cache ---------- ---------- ---- ---- --- ------- 0x00000000 0x00000000 0x01 0x03 RWX Bypass 0x20000000 0x20000000 0x01 0x03 RWX Bypass 0x40000000 0x40000000 0x01 0x03 RWX Bypass 0x60000000 0x60000000 0x01 0x03 RWX Bypass 0x80000000 0x80000000 0x01 0x03 RWX Bypass 0xa0000000 0xa0000000 0x01 0x03 RWX Bypass 0xc0000000 0xc0000000 0x01 0x03 RWX Bypass 0xe0000000 0xe0000000 0x01 0x03 RWX Bypass This patch adds remapping code at the reset vector or at the kernel _start (depending on CONFIG_INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX) that reconfigures MMUv3 as MMUv2: Way 5 (128 MB) Vaddr Paddr ASID Attr RWX Cache ---------- ---------- ---- ---- --- ------- 0xd0000000 0x00000000 0x01 0x07 RWX WB 0xd8000000 0x00000000 0x01 0x03 RWX Bypass Way 6 (256 MB) Vaddr Paddr ASID Attr RWX Cache ---------- ---------- ---- ---- --- ------- 0xe0000000 0xf0000000 0x01 0x07 RWX WB 0xf0000000 0xf0000000 0x01 0x03 RWX Bypass Signed-off-by: Max Filippov <[email protected]> Signed-off-by: Chris Zankel <[email protected]>
2013-05-09xtensa: fix ibreakenable register updateMax Filippov4-0/+8
Only set the register when there is at least one ibreak register, otherwise the build fails: arch/xtensa/kernel/head.S:105: Error: invalid register 'ibreakenable' for 'wsr' instruction arch/xtensa/platforms/iss/setup.c:67: Error: invalid register 'ibreakenable' for 'wsr' instruction Signed-off-by: Max Filippov <[email protected]> Signed-off-by: Chris Zankel <[email protected]>
2013-05-09xtensa: fix oprofile building as moduleMax Filippov2-3/+6
Signed-off-by: Max Filippov <[email protected]> Signed-off-by: Chris Zankel <[email protected]>
2013-05-09microblaze: Fix uaccess_ok macroMichal Simek1-11/+19
Fix access_ok macro no to permit case where user will try to access the last address space which is equal to segment address. Example: segment addr = 0xbfff ffff address = 0xbfff fff0 size = 0x10 Current wrong implementation 0xbfff ffff >= (0xbfff fff0 | 0x10 | (0xbfff fff0 + 0x10)) 0xbfff ffff >= (0xbfff fff0 | 0xc000 0000) 0xbfff ffff >= 0xf000 0000 return 0 which is access failed even the combination is valid. because get_fs().seq returns the last valid address. This patch fix this problem. Size equals to zero is valid access. Signed-off-by: Michal Simek <[email protected]>
2013-05-09microblaze: Add support for new cpu versions and target architectureMichal Simek1-0/+5
Update PVR values based on reference manual. Signed-off-by: Michal Simek <[email protected]>
2013-05-09microblaze: Do not select OPT_LIB_ASM by defaultMichal Simek1-1/+0
This option is valid only for BE systems. Signed-off-by: Michal Simek <[email protected]>
2013-05-09microblaze: Fix initrd supportMichal Simek1-4/+5
Initrd/ramdisk support has been never validated. Signed-off-by: Michal Simek <[email protected]>
2013-05-09microblaze: Do not use r6 in head.SMichal Simek1-10/+10
r6 stores pointer to ramdisk and shouldn't be used before it is passed to machine_early_init. Signed-off-by: Michal Simek <[email protected]>
2013-05-09microblaze: pci: Remove duplicated headerMichal Simek1-2/+0
Remove duplicated header. Signed-off-by: Michal Simek <[email protected]>
2013-05-09microblaze: Set the default irq_domainDan Christensen1-0/+2
Register the irq_domain created during initialization as the default so that device drivers can pass NULL to irq_create_mapping and get a virtual irq to pass to request_irq. Signed-off-by: Dan Christensen <[email protected]> Signed-off-by: Michal Simek <[email protected]>
2013-05-09microblaze: pci: Remove duplicated include from pci-common.cWei Yongjun1-1/+0
Remove duplicated include. Signed-off-by: Wei Yongjun <[email protected]> Signed-off-by: Michal Simek <[email protected]>
2013-05-09watchdog: Fix race condition in registration codeGuenter Roeck1-1/+2
A race condition exists when registering the first watchdog device. Sequence of events: - watchdog_register_device calls watchdog_dev_register - watchdog_dev_register creates the watchdog misc device by calling misc_register. At that time, the matching character device (/dev/watchdog0) does not yet exist, and old_wdd is not set either. - Userspace gets an event and opens /dev/watchdog - watchdog_open is called and sets wdd = old_wdd, which is still NULL, and tries to dereference it. This causes the kernel to panic. Seen with systemd trying to open /dev/watchdog immediately after it was created. Reported-by: Arkadiusz Miskiewicz <[email protected]> Signed-off-by: Guenter Roeck <[email protected]> Tested-by: Arkadiusz Miskiewicz <[email protected]> Signed-off-by: Wim Van Sebroeck <[email protected]>
2013-05-09watchdog: Convert to devm_ioremap_resource()Sachin Kamat4-17/+14
Use the newly introduced devm_ioremap_resource() instead of devm_request_and_ioremap() which provides more consistent error handling. devm_ioremap_resource() provides its own error messages; so all explicit error messages can be removed from the failure code paths. Signed-off-by: Sachin Kamat <[email protected]> Reviewed-by: Thierry Reding <[email protected]> Cc: Gabor Juhos <[email protected]> Cc: Paul Mundt <[email protected]> Signed-off-by: Wim Van Sebroeck <[email protected]>
2013-05-09KVM: VMX: fix halt emulation while emulating invalid guest sateGleb Natapov1-0/+6
The invalid guest state emulation loop does not check halt_request which causes 100% cpu loop while guest is in halt and in invalid state, but more serious issue is that this leaves halt_request set, so random instruction emulated by vm86 #GP exit can be interpreted as halt which causes guest hang. Fix both problems by handling halt_request in emulation loop. Reported-by: Tomas Papan <[email protected]> Tested-by: Tomas Papan <[email protected]> Reviewed-by: Paolo Bonzini <[email protected]> CC: [email protected] Signed-off-by: Gleb Natapov <[email protected]>
2013-05-09blackfin: smp: fix smp build after drop asm/system.hSteven Miao2-0/+3
Signed-off-by: Steven Miao <[email protected]>
2013-05-09blackfin: fix bootup core clock and system clock displayJames Cosin1-1/+1
From: James Cosin <[email protected]> fixes the number of digits to 6 after the decimal point to regain the significant 0s in the frequency after the decimal point. Signed-off-by: Steven Miao <[email protected]>
2013-05-08ARM: dts: Configure and fix the McSPI pins for 4430sdpTony Lindgren1-0/+12
The bootloader configures the pins, but has pull bits set without pull enable bits. While this is harmless, and won't do anything, it seems to cause confusion at least for me every time looking at the pin configuration. Fix it for DT based boot. Signed-off-by: Tony Lindgren <[email protected]>
2013-05-08ARM: dts: AM33XX: Add GPMC nodePhilip Avinash1-0/+12
Add GPMC data node to AM33XX device tree file. Signed-off-by: Philip Avinash <[email protected]> Acked-by: Peter Korsgaard <[email protected]> Signed-off-by: Pekon Gupta <[email protected]> Signed-off-by: Tony Lindgren <[email protected]>
2013-05-08ARM: dts: OMAP4460: Fix CPU OPP voltagesNishanth Menon1-3/+3
commit d16fb25 (ARM: dts: OMAP4460: Add CPU OPP table) introduced wrong OPP voltages per OPP by mistake. Sync the OPP tables with existing OMAP4460 OPP data in arch/arm/mach-omap2/opp4xxx_data.c Signed-off-by: Nishanth Menon <[email protected]> Signed-off-by: Tony Lindgren <[email protected]>
2013-05-08ARM: dts: OMAP36xx: Fix CPU OPP voltagesNishanth Menon1-3/+3
commit 3027e26 (ARM: dts: OMAP36xx: Add CPU OPP table) introduced wrong OPP voltages per OPP by mistake. Sync the OPP tables with existing OMAP36xx OPP data in arch/arm/mach-omap2/opp3xxx_data.c Signed-off-by: Nishanth Menon <[email protected]> Signed-off-by: Tony Lindgren <[email protected]>
2013-05-08ARM: OMAP4+: omap2plus_defconfig: Enable audio via TWL6040 as modulePeter Ujfalusi1-0/+2
Boards supported upstream all use TWL6040 as audio codec, enable the common ASoC machine driver by default for them. Signed-off-by: Peter Ujfalusi <[email protected]> Tested-by: Jyri Sarha <[email protected]> Signed-off-by: Tony Lindgren <[email protected]>
2013-05-08ARM: OMAP2: AM33XX: id: Add support for new AM335x PG2.1 SiVaibhav Hiremath2-2/+7
Add support for chip id detection of AM335x PG2.1 Silicon. Currently omap3xxx_check_revision() detects PG1.0 and PG2.0 only, this patch extends it by adding PG2.1 Si support. Signed-off-by: Vaibhav Hiremath <[email protected]> Signed-off-by: Tony Lindgren <[email protected]>
2013-05-08omap: mux: add AM/DM37x gpiosChristoph Fritz1-1/+5
This patch adds GPIO pins found on AM/DM37x. Signed-off-by: Christoph Fritz <[email protected]> Signed-off-by: Tony Lindgren <[email protected]>
2013-05-08Merge branch 'omap-gpmc-fixes-for-v3.10' of git://github.com/jonhunter/linux ↵Tony Lindgren3-68/+54
into fixes
2013-05-08Add support for fan button on Ideapad Z580Maxim Mikityanskiy1-1/+5
The patch adds support for fan control button on Ideapad Z580. This is the same button as on Z570, but it raises different bit in VPCCMD_R_SPECIAL_BUTTONS. Also add message to dmesg when unknown button press detected, it will help adding support for new special buttons. Signed-off-by: Maxim Mikityanskiy <[email protected]> Tested-by: Ivan Vojtko <[email protected]> Signed-off-by: Matthew Garrett <[email protected]>
2013-05-08pvpanic: pvpanic device driverHu Tao3-0/+134
pvpanic device is a qemu simulated device through which guest panic event is sent to host. Signed-off-by: Hu Tao <[email protected]> Signed-off-by: Matthew Garrett <[email protected]>
2013-05-08asus-nb-wmi: set wapf=4 for ASUSTeK COMPUTER INC. X75AAceLan Kao1-0/+9
BugLink: http://bugs.launchpad.net/bugs/1172151 Need to set wapf to 4 for ASUSTeK COMPUTER INC. X75A, so that user can toggle wifi function through function key correctly. Signed-off-by: AceLan Kao <[email protected]> Signed-off-by: Matthew Garrett <[email protected]>
2013-05-08drivers: platform: x86: Use PTR_RET functionAlexandru Gheorghiu1-4/+1
Used PTR_RET function instead of IS_ERR and PTR_ERR. Patch found using coccinelle. Signed-off-by: Alexandru Gheorghiu <[email protected]> Signed-off-by: Matthew Garrett <[email protected]>
2013-05-08sony-laptop: SVS151290S kbd backlight and gfx switch supportArthur Wirski1-1/+19
SVS151290S series uses handle 0x0163 for keyboard backlight and 0x015B for the graphics switch. Signed-off-by: Arthur Wirski <[email protected]> Signed-off-by: Matthew Garrett <[email protected]>
2013-05-08hp-wmi: add more definitions for new event_id'sAlex Hung1-0/+24
New HP laptops start generating new events, and hp-wmi prints unknown event_ids for them. This patch also removes these messages Signed-off-by: Alex Hung <[email protected]> Signed-off-by: Matthew Garrett <[email protected]>
2013-05-08dell-laptop: Fix krealloc() misuse in parse_da_table()David Woodhouse1-4/+6
If krealloc() returns NULL, it *doesn't* free the original. So any code of the form 'foo = krealloc(foo, …);' is almost certainly a bug. Signed-off-by: David Woodhouse <[email protected]> Signed-off-by: Matthew Garrett <[email protected]>
2013-05-08hp_accel: Ignore the error from lis3lv02d_poweron() at resumeShuah Khan1-1/+2
The error in lis3lv02_poweron() is harmless in the resume path, so we should ignore it. It is inline with the other usages of lis3lv02_poweron() and matches the 3.0 code for this routine. This patch is in suse git and might have missed making it into the mainline. opensuse - commit id: 66ccdac87c322cf7af12bddba8c805af640b1cff Signed-off-by: Takashi Iwai <[email protected]> Signed-off-by: Shuah Khan <[email protected]> CC: [email protected] 3.8, 3.4, 3.5, 3.2 Signed-off-by: Matthew Garrett <[email protected]>
2013-05-08dell: add new dell WMI format for the AIO machinesAceLan Kao1-5/+48
There is a new DELL WMI spec. with new WMI event format. I'm working on the AIO machines, but I think the new format will apply to all the Dell's machines, not only for AIO, which will be released later this year. The new format of the WMI buffer is shown as below word 0 - the number of words following in the WMI buffer(not including this word. word 1 - the event type 0x0000 - A hot key is pressed or an event occurred 0x000F - A sequence of hot keys are pressed word 2 and on - the event data Signed-off-by: AceLan Kao <[email protected]> Signed-off-by: Matthew Garrett <[email protected]>
2013-05-08ARM: OMAP1: DMA: fix error handling in omap1_system_dma_init()Wei Yongjun1-4/+4
Add the missing iounmap() before return from omap1_system_dma_init() in the error handling case. Also removed platform_device_del() on add resources error case which cause dup device delete. Signed-off-by: Wei Yongjun <[email protected]> Signed-off-by: Tony Lindgren <[email protected]>
2013-05-08ARM: OMAP2+: omap_device: use late_initcall_syncKevin Hilman2-1/+2
If DEBUG_LL and earlyprintk are enabled, and omap-serial.c is compiled as a module, the kernel boot hangs early as the clocks for serial port are cut while earlyprintk still uses the port. The problem is a race between the late_initcall for omap_device (which idles devices that have no drivers) and the late_initcall in kernel/printk.c which turns off the earlyconsole. Any printks that happen between this omap_device late initcall and the earlyconsole late initcall will crash when accessing the UART. The fix is to ensure the omap_device initcall happens after the earlyconsole initcall. Reported-by: Tony Lindgren <[email protected]> Signed-off-by: Kevin Hilman <[email protected]> Signed-off-by: Tony Lindgren <[email protected]>
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