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2008-01-11Pull bugzilla-9683 into release branchLen Brown
2008-01-11Pull bugzilla-9627 into release branchLen Brown
2008-01-11Pull bugzilla-9494 into release branchLen Brown
2008-01-11Pull bugzilla-9194 into release branchLen Brown
2008-01-11PM: ACPI and APM must not be enabled at the same timeLen Brown
ACPI and APM used "pm_active" to guarantee that they would not be simultaneously active. But pm_active was recently moved under CONFIG_PM_LEGACY, so that without CONFIG_PM_LEGACY, pm_active became a NOP -- allowing ACPI and APM to both be simultaneously enabled. This caused unpredictable results, including boot hangs. Further, the code under CONFIG_PM_LEGACY is scheduled for removal. So replace pm_active with pm_flags. pm_flags depends only on CONFIG_PM, which is present for both CONFIG_APM and CONFIG_ACPI. http://bugzilla.kernel.org/show_bug.cgi?id=9194 Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2008-01-11Pull bugzilla-8171 into release branchLen Brown
2008-01-10ACPICA: fix acpi_serialize hang regressionBob Moore
http://bugzilla.kernel.org/show_bug.cgi?id=8171 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-10ACPI : Not register gsi for PCI IDE controller in legacy modeAlan Cox
When PCI IDE controller works in legacy mode and no PRT entry is found in ACPI PRT table, OSPM will neither read the irq number from the IDE PCI configuration space nor call the function of acpi_register_gsi to register gsi. http://bugzilla.kernel.org/show_bug.cgi?id=5637 Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-07ACPI: Reintroduce run time configurable max_cstate for !CPU_IDLE caseVenki Pallipadi
This was writeable in 2.6.23 but the cpuidle merge made it read-only. But some people's scripts (ie: Mark's) were writing to it. As an unhappy compromise, make max_cstate writeable again if the kernel was configured without CONFIG_CPU_IDLE. http://bugzilla.kernel.org/show_bug.cgi?id=9683 Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Cc: Mark Lord <lkml@rtr.ca> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-01ACPI: Make sysfs interface in ACPI power optional.Alexey Starikovskiy
Reference: http://bugzilla.kernel.org/show_bug.cgi?id=9494 Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2008-01-01ACPI: EC: Enable boot EC before bus_scanAlexey Starikovskiy
Some _STA methods called during bus_scan() might require EC region handler, which might be enabled later in the scan. Enable it explicitly before scan to avoid errors. Reference: http://bugzilla.kernel.org/show_bug.cgi?id=9627 Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2007-12-14Pull bugzilla-9362 into release branchLen Brown
2007-12-14ACPI: SBS: Return rate in mW if capacity in mWhAlexey Starikovskiy
klaptopd assumes rate to be in same units as capacity. http://bugzilla.kernel.org/show_bug.cgi?id=9362 Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2007-12-14ACPI: SBS: Ignore alarms coming from unknown devicesAlexey Starikovskiy
http://bugzilla.kernel.org/show_bug.cgi?id=9362 Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2007-12-14ACPI: SBS: Reset alarm bitAlexey Starikovskiy
Alarm bit should be cleared in order for other alarms to be sent. http://bugzilla.kernel.org/show_bug.cgi?id=9362 Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2007-12-14Pull hotplug into release branchLen Brown
2007-12-13Pull battery-2.6.24 into release branchLen Brown
2007-12-13ACPI: fix modpost warningsJan Beulich
for sn2_defconfig: WARNING: vmlinux.o(.text+0x4b8601): Section mismatch: reference to .init.data:node_to_pxm_map (between '__acpi_map_pxm_to_node' and 'acpi_get_pxm') WARNING: vmlinux.o(.text+0x4b8741): Section mismatch: reference to .init.data:pxm_to_node_map (between 'acpi_map_pxm_to_node' and 'acpi_get_node') Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-12-13ACPI: video_device_list corruptionWilliam Lee Irwin III
The ->cap fields of struct acpi_video_device and struct acpi_video_bus are 1B each, not 4B. The oversized memset()'s corrupted the subsequent list_head fields. This resulted in silent corruption without CONFIG_DEBUG_LIST and BUG's with it. This patch uses sizeof() to pass the proper bounds to the memset() calls and thereby correct the bugs. Signed-off-by: William Irwin <wli@holomorphy.com> Acked-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Len Brown <len.brown@intel.com>
2007-12-07ACPI: move timer broadcast before busmaster disableThomas Gleixner
The timer broadcast code might access HPET, which should not be accessed after the busmaster disable. In acpi_idle_enter_simple() this change also prevents, that we modify the busmaster state without going actually idle. This might leave the ACPI bm state in a stale state, when we leave the function early in the need_resched() check. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
2007-12-06ACPI: battery: fix ACPI battery technology reportingAndrey Borzenkov
At least some systems report technology information with trailing spaces: {pts/1}% cat -E /var/tmp/bat/2.6.23 | grep type battery type: Li-ION $ Use strncasecmp to compare model string to skip trailing part Signed-off-by: Andrey Borzenkov <arvidjaar@mail.ru> Acked-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2007-12-02Pull bugzilla-9429 into release branchLen Brown
2007-12-02Pull thermal into release branchLen Brown
2007-12-02ACPICA: fix acpi-cpufreq boot crash due to _PSD return-by-referenceBob Moore
Changed resolution of named references in packages Fixed a problem with the Package operator where all named references were created as object references and left otherwise unresolved. According to the ACPI specification, a Package can only contain Data Objects or references to control methods. The implication is that named references to Data Objects (Integer, Buffer, String, Package, BufferField, Field) should be resolved immediately upon package creation. This is the approach taken with this change. References to all other named objects (Methods, Devices, Scopes, etc.) are all now properly created as reference objects. http://bugzilla.kernel.org/show_bug.cgi?id=5328 http://bugzilla.kernel.org/show_bug.cgi?id=9429 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-12-01ACPI: Delete the IRQ operation in throttling controll via PTCZhao Yakui
The IRQ operation(enable/disable) should be avoided when throttling is controlled via PTC method. It is replaced by the migration of task. This fixes an oops on T61 -- a regression due to f79f06ab9f86 b/c FixedHW support tried to read remote MSR with interrupts disabled. Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-11-29ACPI: avoid references to impossible processors.Christoph Lameter
ACPI uses NR_CPUS in various loops and in some it accesses per cpu data of processors that are not present(!) and that will never be present. The pointers to per cpu data are typically not initialized for processors that are not present. So we seem to be reading something here from offset 0 in memory. Make ACPI use nr_cpu_ids instead. That stops at the end of the possible processors. Convert one loop to NR_CPUS to use the cpu_possible map instead. That way ranges of processor that can never be brought online are skipped during the loop. Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: Len Brown <lenb@kernel.org> Acked-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86: x86: fix APIC related bootup crash on Athlon XP CPUs time: add ADJ_OFFSET_SS_READ x86: export the symbol empty_zero_page on the 32-bit x86 architecture x86: fix kprobes_64.c inlining borkage pci: use pci=bfsort for HP DL385 G2, DL585 G2 x86: correctly set UTS_MACHINE for "make ARCH=x86" lockdep: annotate do_debug() trap handler x86: turn off iommu merge by default x86: fix ACPI compile for LOCAL_APIC=n x86: printk kernel version in WARN_ON and other dump_stack users ACPI: Set max_cstate to 1 for early Opterons. x86: fix NMI watchdog & 'stopped time' problem
2007-11-26ACPI: Set max_cstate to 1 for early Opterons.Alexey Starikovskiy
AMD Opteron processors before CG revision don't like C-states > 1. This solves the long standing bugzilla #5303 and probably some more on affected machines: http://bugzilla.kernel.org/show_bug.cgi?id=5303 [ tglx@linutronix.de: reworked the patch so it does not wreck ia64 ] Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-11-20Pull bugzilla-9327 into release branchLen Brown
Conflicts: drivers/acpi/ec.c Signed-off-by: Len Brown <len.brown@intel.com>
2007-11-20ACPI: EC: Workaround for optimized controllers (version 3)Alexey Starikovskiy
Some controllers fail to send confirmation GPE after address or data write. Detect this and don't expect such confirmation in future. This is a generalization of previous workaround (66c5f4e7367b0085652931b2f3366de29e7ff5ec), which did only read address. Reference: http://bugzilla.kernel.org/show_bug.cgi?id=9327 Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Tested-by: Romano Giannetti <romano.giannetti@gmail.com> Tested-by: Mats Johannesson Signed-off-by: Len Brown <len.brown@intel.com>
2007-11-20ACPI: EC: use printk_ratelimit(), add some DEBUG mode messagesMárton Németh
Sometimes it is usefull to see raw protocol dump. Uncomment '#define DEBUG' at the beginning of file to make EC really verbose. Signed-off-by: Márton Németh <nm127@freemail.hu> Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2007-11-20Revert "ACPI: EC: Workaround for optimized controllers"Len Brown
This reverts commit f2d68935ba08cf80f151bbdb5628381184e4a498.
2007-11-20ACPI: acpiphp: Remove dmesg spam on device removeGary Hade
In cases where acpi_pci_bind() does not attach device data, acpi_pci_unbind() complains via an ACPI exception about the missing data when the device is removed. For example, acpi_pci_bind() does not attach data for non-existent device functions so when the device is removed using the ACPI PCI hotplug driver 'acpiphp' an ACPI exception is logged for every non-existent function. This patch avoids the confusing log messages by removing the unnecessary ACPI exception. Signed-off-by: Gary Hade <garyhade@us.ibm.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-11-20Pull fluff into release branchLen Brown
Conflicts: drivers/acpi/ec.c Signed-off-by: Len Brown <len.brown@intel.com>
2007-11-20Pull video-2.6.24 into release branchLen Brown
2007-11-20Pull thermal into release branchLen Brown
2007-11-20Pull procfs-default into release branchLen Brown
Conflicts: drivers/acpi/sbs.c Signed-off-by: Len Brown <len.brown@intel.com>
2007-11-20Pull cpuidle into release branchLen Brown
2007-11-20Pull bugzilla-9327 into release branchLen Brown
2007-11-20Pull bugzilla-9262 into release branchLen Brown
2007-11-20Pull battery into release branchLen Brown
2007-11-19ACPI: Add missing spaces to printk formatJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-11-19cpuidle: fix HP nx6125 regressionVenkatesh Pallipadi
Fix for http://bugzilla.kernel.org/show_bug.cgi?id=9355 cpuidle always used to fallback to C2 if there is some bm activity while entering C3. But, presence of C2 is not always guaranteed. Change cpuidle algorithm to detect a safe_state to fallback in case of bm_activity and use that state instead of C2. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-11-19cpuidle: add sched_clock_idle_[sleep|wakeup]_event() hooksVenkatesh Pallipadi
Port 2aa44d0567ed21b47b87d68819415d48194cb923 (sched: sched_clock_idle_[sleep|wakeup]_event()) to cpuidle. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-11-19cpuidle: fix C3 for no bus-master control caseVenkatesh Pallipadi
Port 18eab8550397f1f3d4b8b2c5257c88dae25d58ed (Enable C3 even when PM2_control is zero) to cpuidle. Without this patch, some systems will notice a regression when enabling CPU_IDLE -- C3 would no longer be available. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-11-19ACPI: EC: Don't init EC early if it has no _INIAlexey Starikovskiy
Option to init EC early inserted to handle #8598 ASUS problem, introduced several others. EC driver in this particular case has fake _INI method, not present on other machines, which don't need or break from this workaround, so lets use its presence as a flag for early init. http://bugzilla.kernel.org/show_bug.cgi?id=9262 http://bugzilla.kernel.org/show_bug.cgi?id=8598 https://bugzilla.novell.com/show_bug.cgi?id=334806 Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2007-11-19Revert "acpi: make ACPI_PROCFS default to y"Len Brown
This reverts commit cbff2fbf55c21f50298b1aef1263b11bf510e35f.
2007-11-19Revert "ACPI: add documentation for deprecated /proc/acpi/battery in ↵Len Brown
ACPI_PROCFS" This reverts commit 6e800af233e0bdf108efb7bd23c11ea6fa34cdeb.
2007-11-19ACPI: Split out control for /proc/acpi entries from battery, ac, and sbs.Alexey Starikovskiy
Introduce new ACPI_PROCFS_POWER (default Yes) config option and move procfs code in battery, ac, and sbs drivers under it. This is done to allow ACPI_PROCFS to be default No. Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2007-11-19ACPI: Video: Increase buffer size for writes to brightness proc file.Danny Baumann
In order to be able to write the value "100" to /proc/acpi/video/.../brightness, we have to allocate 5 bytes: 4 characters will be written (1, 0, 0 plus null byte), and 1 byte should be buffer for a terminating NULL character. http://bugzilla.kernel.org/show_bug.cgi?id=9278 Signed-off-by: Danny Baumann <dannybaumann@web.de> Acked-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
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