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2010-08-02Merge branch 'devel-misc' into omap-for-linusTony Lindgren407-195284/+2792
2010-08-02omap: mux: fix multipath gpio handlingGrazvydas Ignotas1-18/+20
OMAP3530 CBB package can have GPIO126 muxed on 2 pins: mmc1_dat4 and cam_strobe. This causes a problem with current multipath GPIO mux handling, which muxes both pins as GPIO126 and makes the GPIO unusable. Fix this by not muxing any pins if multipath GPIO is detected and just print a warning instead. It's up to board files to set correct mux using omap_mux_init_signal and pin name. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap: Devkit8000: Use DIE id to initialize dm9000 MAC addressKan-Ru Chen1-0/+14
The devkit8000 boards often come with empty EEPROM thus without valid ethernet MAC address. The DIE id to MAC formula is copied from u-boot. Signed-off-by: Kan-Ru Chen <kanru@0xlab.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap: Use omap_get_die_id() to get the DIE idsKan-Ru Chen1-8/+6
Signed-off-by: Kan-Ru Chen <kanru@0xlab.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap: Add new interface omap_get_die_idKan-Ru Chen2-0/+32
Allow DIE id to be get and used by others. Signed-off-by: Kan-Ru Chen <kanru@0xlab.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02OMAP3: AM3505/3517 do not have IO wakeup capabilitystanley.miao3-3/+8
AM3505/3517 doesn't have IO wakeup capability, so we do not need to set the bit OMAP3430_EN_IO and the bit OMAP3430_EN_IO_CHAIN in the register PM_WKEN_WKUP when the system enters suspend state. Tested on AM3517EVM and OMAP3530EVM. Signed-off-by: Stanley.Miao <stanley.miao@windriver.com> Acked-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap: dma: Support for prefetch in destination synchronizedtransferSamu Onkalo2-4/+8
Omap DMA controller can prefetch data in advance in case of destination synchronized data transfer. This may increase performance when target HW block doesn't have fifo. Data is waiting for transfer request in DMA fifo instead of read from memory. Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap2/3: id: fix sparse warningNishanth Menon1-5/+5
omap24xx_check_revision, omap3_check_features, omap3_check_revision, omap4_check_revision, omap3_cpuinfo are not used elsewhere, it should be static Also fixes the following sparse warnings: arch/arm/mach-omap2/id.c:105:13: warning: symbol 'omap24xx_check_revision' was not declared. Should it be static? arch/arm/mach-omap2/id.c:167:13: warning: symbol 'omap3_check_features' was not declared. Should it be static? arch/arm/mach-omap2/id.c:189:13: warning: symbol 'omap3_check_revision' was not declared. Should it be static? arch/arm/mach-omap2/id.c:270:13: warning: symbol 'omap4_check_revision' was not declared. Should it be static? arch/arm/mach-omap2/id.c:300:13: warning: symbol 'omap3_cpuinfo' was not declared. Should it be static? Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap: Overo: Fix support for second ethernet portSteve Sakoman1-2/+40
The original patch got truncated when applied from patchwork.kernel.org as discussed at: http://www.mail-archive.com/linux-omap@vger.kernel.org/msg28953.html This patch supplies the missing chunks. Signed-off-by: Steve Sakoman <sakoman@gmail.com> [tony@atomide.com: added more info to the patch description] Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap2: Fix GPIO numbers and smc91x for 2430sdpTony Lindgren2-6/+4
Fix GPIO numbers and smc91x for 2430sdp. The earlier code had cut and paste errors from 3430sdp code. Also, 2430 has five GPIO banks for a total of 160 GPIO lines. Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap1: omap7xx clocks, mux, serial fixesCory Maccarrone4-0/+35
This change adds in the necessary clocks and mux pins for UART control on omap7xx devices. I also made a change in the serial code to only try and initialize two UARTs in omap_serial_init, as these devices don't have three. Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap: Add back UART MDR1 check into uncompress.hTony Lindgren1-0/+6
Recent DEBUG_LL and uncompress.h changes removed the check_port() as pointed out by Cory Maccarrone <darkstar6262@gmail.com>. This causes some boards to not boot, so add back the MDR1 register check. The MDR1 register tells the mode of omap uart. Based on an earlier patch by Cory Maccarrone <darkstar6262@gmail.com>. Tested-by: Cory Maccarrone <darkstar6262@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap4: hotplug: Add basic CPU hotplug supportSantosh Shilimkar4-1/+89
This patch adds cpu hotplug support for OMAP4430. Only CPU inactive state is supported as a low power state in the basic hot-plug support Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap4: Add smc API to read AuxCoreBoot0 registerSantosh Shilimkar3-16/+26
This patch adds a secure API to read AuxCoreBoot0 register to check the cpu boot status. It also moves the other smc APIs to common omap44xx-smc.S. This APIs should not be marked as __INIT because we need these to be present for CPU hotplug Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap4: suspend: Add basic system suspend supportRajendra Nayak2-0/+136
This patch adds support for basic suspend doing a CPUx wfi for OMAP4. All powerdomains are for now are kept programmed in ON state. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap2/3/4: serial: errata i202: fix for MDR1 accessDeepak K1-3/+49
Errata i202 (OMAP3430 - 1.12, OMAP3630 - 1.6): UART module MDR1 register access can cause a dummy underrun condition which could result in a freeze in the case of IrDA communication or if used as UART, corrupted data. Workaround is as follows for everytime MDR1 register is changed: * setup all required UART registers * setup MDR1.MODE_SELECT bit field * Wait 5 L4 clk cycles + 5 UART functional clock cycles * Clear the Tx and RX fifo using FCR register Note: The following step is not done as I am assuming it is not needed due to reconfiguration being done and there is no halted operation perse. * Read if required, the RESUME register to resume halted operation Based on an earlier patch at: http://git.omapzoom.org/?p=kernel/omap.git;a=commitdiff;h=42d4a342c009bd9727c100abc8a4bc3063c22f0c Signed-off-by: Deepak K <deepak.k@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap2/3/4: serial: introduce errata handlingNishanth Menon1-5/+10
introduce silicon specific quirks as a errata handling mechanism as a start UART_ERRATA_FIFO_FULL_ABORT is used to handle the override for fifo full condition for rx and tx. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap2/3/4: serial: kill dev_attr_sleep_timeout sparse warnNishanth Menon1-1/+2
Remove the following sparse warnings by declaring attr as static: arch/arm/mach-omap2/serial.c:627:1: warning: symbol 'dev_attr_sleep_timeout' was not declared. Should it be static? Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap2/3/4: serial: remove initialization sparse warningsNishanth Menon1-2/+2
Initialization of pointer should be done with NULL. Removes sparse warnings: arch/arm/mach-omap2/serial.c:566:17: warning: Using plain integer as NULL pointer arch/arm/mach-omap2/serial.c:567:17: warning: Using plain integer as NULL pointer Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap3: serial: Add context save and restore for mcrGovindraj R1-0/+6
Adds context save/restore for mcr register as state of mcr register is lost after core off. Signed-off-by: Govindraj R <govindraj.raja@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap4: Add OMAP4 Panda SupportDavid Anders3-0/+311
Add initial support for the OMAP4 based Panda Board. Signed-off-by: David Anders <x0132446@ti.com> [tony@atomide.com: selected board by default in Kconfig] Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02OMAP4: Add GPIO LED support for SDP boardHemanth V1-0/+50
This patch adds support for GPIO LEDs present on OMAP4 SDP and Blaze boards. This basically adds platform data required by leds-gpio driver Signed-off-by: Hemanth V <hemanthv@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap4: Board changes for 4430sdp tmp105 temperature sensorShubhrajyoti Datta1-1/+7
Adding board configuration for the tmp105 temperature sensor. The interface to the sensor is I2C. Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap4: mmc: Fix the regulator resource for MMC2 on 4430sdpSantosh Shilimkar1-4/+8
The MMC1 and MMC2 cards have seperate LDO supplies. Current code assumes that they are powered by same LDO. This patch fixes the same and has VAUX1 as supply to MMC2 card. Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Sukumar Ghorai <s-ghorai@ti.com> Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com> Tested-by: Kishore Kadiyala <kishore.kadiyala@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap: tsl2563 ALS support for Nokia N900Mathias Nyman1-0/+14
This commit will enable usage of tsl2563 ambient light sensor on Nokia N900. Signed-off-by: Ameya Palande <ameya.palande@nokia.com> Signed-off-by: Mathias Nyman <mathias.nyman@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap: rx51: Add supply and data for the tpa6130a2 headphoneamplifierJarkko Nikula1-0/+12
With these and upcoming change to tpa6130a2 driver it's possible to add support for the TPA6130A2 headphone amplifier. Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap: rx51: Use REGULATOR_SUPPLY macro when initializingregulator consumersJarkko Nikula1-32/+11
There is REGULATOR_SUPPLY macro available for initializing the struct regulator_consumer_supply so use it where applicable (all other supplies than vdds_sdi) as it improves the readability. Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Acked-by: Eduardo Valentin <eduardo.valentin@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap: rx51: Add platform_data for tlv320aic3x with reset gpionumberJarkko Nikula1-0/+7
Proper operation of the tlv320aic3x audio codec requires that reset sequencing is done in pair with supply voltages when using the regulator framework. Add the codec reset gpio used in Nokia RX51 to tlv320aic3x data. Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap: rx51: Set regulator V28 always onJarkko Nikula1-0/+1
It seems that the battery cover sensor in Nokia N900 is powered from the V28 domain. Now if this regulator is disabled it causes that the gpio 160 reads only zero which effectively causes uSD removal detection. Currently the bootloader enabled V28 is kept on but this may change in the future according to comment in drivers/regulator/core.c: regulator_has_full_constraints. Also if there are any consumers on the V28 domain doing regulator_enable regulator_disable cycle the V28 will be disabled after that. Prepare for these by defining the V28 as always_on regulator. Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Cc: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap3: pandora: add NAND and wifi supportGrazvydas Ignotas1-0/+120
Add platform data for NAND and wifi, also setup all GPIOs needed to use the wifi chip. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap3: pandora: update gpio-keys dataGrazvydas Ignotas1-20/+10
Update gpio-keys setup so it matches what is on default firmware. Also make use of debounce feature in gpio-keys instead of setting it explicitly, as gpio-keys is now capable of using hardware debounce on OMAPs thanks to recent gpiolib changes. Also fix a sparce warning along the way. Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap: zoom3: wlan board muxingOhad Ben-Cohen1-0/+13
Add board muxing to support the wlan wl1271 chip that is hardwired to mmc2 (third mmc controller) on the ZOOM3. Signed-off-by: Ohad Ben-Cohen <ohadb@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-02omap: zoom2: wlan board muxingOhad Ben-Cohen1-0/+13
Add board muxing to support the wlan wl1271 chip that is hardwired to mmc2 (third mmc controller) on the ZOOM2. Signed-off-by: Ohad Ben-Cohen <ohadb@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-07-31Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds9-47/+66
* master.kernel.org:/home/rmk/linux-2.6-arm: cyber2000fb: fix console in truecolor modes cyber2000fb: fix machine hang on module load SA1111: Eliminate use after free ARM: Fix Versatile/Realview/VExpress MMC card detection sense ARM: 6279/1: highmem: fix SMP preemption bug in kmap_high_l1_vipt ARM: Add barriers to io{read,write}{8,16,32} accessors as well ARM: 6273/1: Add barriers to the I/O accessors if ARM_DMA_MEM_BUFFERABLE ARM: 6272/1: Convert L2x0 to use the IO relaxed operations ARM: 6271/1: Introduce *_relaxed() I/O accessors ARM: 6275/1: ux500: don't use writeb() in uncompress.h ARM: 6270/1: clean files in arch/arm/boot/compressed/ ARM: Fix csum_partial_copy_from_user()
2010-07-31SA1111: Eliminate use after freeJulia Lawall1-3/+2
__sa1111_remove always frees its argument, so the subsequent reference to sachip->saved_state represents a use after free. __sa1111_remove does not appear to use the saved_state field, so the patch simply frees it first. A simplified version of the semantic patch that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression E,E2; @@ __sa1111_remove(E) ... ( E = E2 | * E ) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-31ARM: Fix Versatile/Realview/VExpress MMC card detection senseRussell King2-2/+2
The MMC card detection sense has become really confused with negations at various levels, leading to some platforms not detecting inserted cards. Fix this by converting everything to positive logic throughout, thereby getting rid of these negations. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-31ARM: 6279/1: highmem: fix SMP preemption bug in kmap_high_l1_viptGary King1-5/+8
smp_processor_id() must not be called from a preemptible context (this is checked by CONFIG_DEBUG_PREEMPT). kmap_high_l1_vipt() was doing so. This lead to a problem where the wrong per_cpu kmap_high_l1_vipt_depth could be incremented, causing a BUG_ON(*depth <= 0); in kunmap_high_l1_vipt(). The solution is to move the call to smp_processor_id() after the call to preempt_disable(). Originally by: Andrew Howe <ahowe@nvidia.com> Signed-off-by: Gary King <gking@nvidia.com> Acked-by: Nicolas Pitre <nico.as.pitre@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-30Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6Linus Torvalds3-10/+32
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] etr: fix clock synchronization race [S390] Fix IRQ tracing in case of PER
2010-07-29ARM: Add barriers to io{read,write}{8,16,32} accessors as wellRussell King1-20/+18
The ioread/iowrite accessors also need barriers as they're used in place of readl/writel et.al. in portable drivers. Create __iormb() and __iowmb() which are conditionally defined to be barriers dependent on ARM_DMA_MEM_BUFFERABLE, and always use these macros in the accessors. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-29ARM: 6273/1: Add barriers to the I/O accessors if ARM_DMA_MEM_BUFFERABLECatalin Marinas1-0/+11
When the coherent DMA buffers are mapped as Normal Non-cacheable (ARM_DMA_MEM_BUFFERABLE enabled), buffer accesses are no longer ordered with Device memory accesses causing failures in device drivers that do not use the mandatory memory barriers before starting a DMA transfer. LKML discussions led to the conclusion that such barriers have to be added to the I/O accessors: http://thread.gmane.org/gmane.linux.kernel/683509/focus=686153 http://thread.gmane.org/gmane.linux.ide/46414 http://thread.gmane.org/gmane.linux.kernel.cross-arch/5250 This patch introduces a wmb() barrier to the write*() I/O accessors to handle the situations where Normal Non-cacheable writes are still in the processor (or L2 cache controller) write buffer before a DMA transfer command is issued. For the read*() accessors, a rmb() is introduced after the I/O to avoid speculative loads where the driver polls for a DMA transfer ready bit. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-29ARM: 6272/1: Convert L2x0 to use the IO relaxed operationsCatalin Marinas1-13/+13
This patch is in preparation for a subsequent patch which adds barriers to the I/O accessors. Since the mandatory barriers may do an L2 cache sync, this patch avoids a recursive call into l2x0_cache_sync() via the write*() accessors and wmb() and a call into l2x0_cache_sync() with the l2x0_lock held. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-29ARM: 6271/1: Introduce *_relaxed() I/O accessorsCatalin Marinas1-12/+17
This patch introduces readl*_relaxed()/write*_relaxed() as the main I/O accessors (when __mem_pci is defined). The standard read*()/write*() macros are now based on the relaxed accessors. This patch is in preparation for a subsequent patch which adds barriers to the I/O accessors. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-29ARM: 6275/1: ux500: don't use writeb() in uncompress.hRabin Vincent1-5/+5
Don't use writeb() in uncompress.h, to avoid the following build errors when the "Add barriers to the I/O accessors" series is applied. Use __raw_writeb() instead. arch/arm/boot/compressed/misc.o: In function `putc': arch/arm/mach-ux500/include/mach/uncompress.h:41: undefined reference to `outer_cache' Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-29ARM: 6270/1: clean files in arch/arm/boot/compressed/Magnus Damm1-0/+3
Update the compressed boot Makefile for ARM to remove files during clean. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-29Merge branch 'for_linus' of ↵Linus Torvalds1-2/+7
git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb: x86,kgdb: Fix hw breakpoint regression
2010-07-29Merge branch 'for-linus' of ↵Linus Torvalds1-0/+8
git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6: davinci: da850/omap-l138 evm: account for DEFDCDC{2,3} being tied high regulator: tps6507x: allow driver to use DEFDCDC{2,3}_HIGH register wm8350-regulator: fix wm8350_register_regulator error handling ab3100: fix off-by-one value range checking for voltage selector
2010-07-29x86,kgdb: Fix hw breakpoint regressionJason Wessel1-2/+7
HW breakpoints events stopped working correctly with kgdb as a result of commit: 018cbffe6819f6f8db20a0a3acd9bab9bfd667e4 (Merge commit 'v2.6.33' into perf/core). The regression occurred because the behavior changed for setting NOTIFY_STOP as the return value to the die notifier if the breakpoint was known to the HW breakpoint API. Because kgdb is using the HW breakpoint API to register HW breakpoints slots, it must also now implement the overflow_handler call back else kgdb does not get to see the events from the die notifier. The kgdb_ll_trap function will be changed to be general purpose code which can allow an easy way to implement the hw_breakpoint API overflow call back. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Acked-by: Dongdong Deng <dongdong.deng@windriver.com> Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
2010-07-28davinci: da850/omap-l138 evm: account for DEFDCDC{2,3} being tied highSekhar Nori1-0/+8
Per the da850/omap-l138 Beta EVM SOM schematic, the DEFDCDC2 and DEFDCDC3 lines are tied high. This leads to a 3.3V IO and 1.2V CVDD voltage. Pass the right platform data to the TPS6507x driver so it can operate on the DEFDCDC{2,3}_HIGH register to read and change voltage levels. Signed-off-by: Sekhar Nori <nsekhar@ti.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-07-27[S390] etr: fix clock synchronization raceMartin Schwidefsky1-6/+12
The etr events switch-to-local and sync-check disable the synchronous clock and schedule a work queue that tries to get the clock back into sync. If another switch-to-local or sync-check event occurs while the work queue function etr_work_fn still runs the eacr.es bit and the clock_sync_word can become inconsistent because check_sync_clock only uses the clock_sync_word to determine if the clock is in sync or not. The second pass of the etr_work_fn will reset the eacr.es bit but will leave the clock_sync_word intact. Fix this race by moving the reset of the eacr.es bit into the switch-to-local and sync-check functions and by checking the eacr.es bit as well to decide if the clock needs to be synced. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-07-27[S390] Fix IRQ tracing in case of PERHeiko Carstens2-4/+20
In case user space is single stepped (PER) the program check handler claims too early that IRQs are enabled on the return path. Subsequent checks will notice that the IRQ mask in the PSW and what lockdep thinks the IRQ mask should be do not correlate and therefore will print a warning to the console and disable lockdep. Fix this by doing all the work within the correct context. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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