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2011-03-04x86-64, NUMA: Clean up initmem_init()David Rientjes1-39/+55
This patch cleans initmem_init() so that it is more readable and doesn't use an unnecessary array of function pointers to convolute the flow of the code. It also makes it obvious that dummy_numa_init() will always succeed (and documents that requirement) so that the existing BUG() is never actually reached. No functional change. -tj: Updated comment for dummy_numa_init() slightly. Signed-off-by: David Rientjes <[email protected]> Signed-off-by: Tejun Heo <[email protected]>
2011-03-04x86-64, NUMA: Fix numa_emulation code with node0 without RAMYinghai Lu1-3/+1
On one system that does not have RAM on node0. When numa_emulation is compiled in, and 1. boot system without numa=fake... 2. or boot system with numa=fake=128 to make emulation fail will get: [ 0.092026] ------------[ cut here ]------------ [ 0.096005] kernel BUG at arch/x86/mm/numa_emulation.c:439! [ 0.096005] invalid opcode: 0000 [#1] SMP [ 0.096005] last sysfs file: [ 0.096005] CPU 0 [ 0.096005] Modules linked in: [ 0.096005] [ 0.096005] Pid: 0, comm: swapper Not tainted 2.6.38-rc6-tip-yh-03869-gcb0491d-dirty #684 Sun Microsystems Sun Fire X4240/Sun Fire X4240 [ 0.096005] RIP: 0010:[<ffffffff81cdc65b>] [<ffffffff81cdc65b>] numa_add_cpu+0x56/0xcf [ 0.096005] RSP: 0000:ffffffff82437ed8 EFLAGS: 00010246 ... [ 0.096005] Call Trace: [ 0.096005] [<ffffffff81cd7931>] identify_cpu+0x2d7/0x2df [ 0.096005] [<ffffffff827e54fa>] identify_boot_cpu+0x10/0x30 [ 0.096005] [<ffffffff827e5704>] check_bugs+0x9/0x2d [ 0.096005] [<ffffffff827dceda>] start_kernel+0x3d7/0x3f1 [ 0.096005] [<ffffffff827dc2cc>] x86_64_start_reservations+0x9c/0xa0 [ 0.096005] [<ffffffff827dc4ad>] x86_64_start_kernel+0x1dd/0x1e8 [ 0.096005] Code: 74 06 48 8d 04 90 eb 0f 48 c7 c0 30 d9 00 00 48 03 04 d5 90 0f 60 82 8b 00 83 f8 ff 74 0d 0f a3 05 8b 7e 92 00 19 d2 85 d2 75 02 <0f> 0b 48 98 be 00 01 00 00 48 c7 c7 e0 44 60 82 44 8b 2c 85 e0 [ 0.096005] RIP [<ffffffff81cdc65b>] numa_add_cpu+0x56/0xcf [ 0.096005] RSP <ffffffff82437ed8> [ 0.096026] ---[ end trace a7919e7f17c0a725 ]--- We need to use early_cpu_to_node() directly, because numa_cpu_node() will return node0 that is not onlined. Signed-off-by: Yinghai Lu <[email protected]> Signed-off-by: Tejun Heo <[email protected]>
2011-03-04perf: Fix LLC-* events on Intel Nehalem/WestmereAndi Kleen2-17/+79
On Intel Nehalem and Westmere CPUs the generic perf LLC-* events count the L2 caches, not the real L3 LLC - this was inconsistent with behavior on other CPUs. Fixing this requires the use of the special OFFCORE_RESPONSE events which need a separate mask register. This has been implemented by the previous patch, now use this infrastructure to set correct events for the LLC-* on Nehalem and Westmere. Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Lin Ming <[email protected]> Signed-off-by: Peter Zijlstra <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2011-03-04perf: Add support for supplementary event registersAndi Kleen3-0/+265
Change logs against Andi's original version: - Extends perf_event_attr:config to config{,1,2} (Peter Zijlstra) - Fixed a major event scheduling issue. There cannot be a ref++ on an event that has already done ref++ once and without calling put_constraint() in between. (Stephane Eranian) - Use thread_cpumask for percore allocation. (Lin Ming) - Use MSR names in the extra reg lists. (Lin Ming) - Remove redundant "c = NULL" in intel_percore_constraints - Fix comment of perf_event_attr::config1 Intel Nehalem/Westmere have a special OFFCORE_RESPONSE event that can be used to monitor any offcore accesses from a core. This is a very useful event for various tunings, and it's also needed to implement the generic LLC-* events correctly. Unfortunately this event requires programming a mask in a separate register. And worse this separate register is per core, not per CPU thread. This patch: - Teaches perf_events that OFFCORE_RESPONSE needs extra parameters. The extra parameters are passed by user space in the perf_event_attr::config1 field. - Adds support to the Intel perf_event core to schedule per core resources. This adds fairly generic infrastructure that can be also used for other per core resources. The basic code has is patterned after the similar AMD northbridge constraints code. Thanks to Stephane Eranian who pointed out some problems in the original version and suggested improvements. Signed-off-by: Andi Kleen <[email protected]> Signed-off-by: Lin Ming <[email protected]> Signed-off-by: Peter Zijlstra <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2011-03-04perf_events: Update PEBS event constraintsStephane Eranian2-21/+42
This patch updates PEBS event constraints for Intel Atom, Nehalem, Westmere. This patch also reorganizes the PEBS format/constraint detection code. It is now based on processor model and not PEBS format. Two processors may use the same PEBS format without have the same list of PEBS events. In this second version, we simplified the initialization of the PEBS constraints by leveraging the existing switch() statement in perf_event_intel.c. We also renamed the constraint tables to be more consistent with regular constraints. In this 3rd version, we drop BR_INST_RETIRED.MISPRED from Intel Atom as it does not seem to work. Use MISPREDICTED_BRANCH_RETIRED instead. Also add FP_ASSIST.* o both Intel Nehalem and Westmere. I misssed those in the earlier patches. Events were tested using libpfm4 perf_examples. Signed-off-by: Stephane Eranian <[email protected]> Signed-off-by: Peter Zijlstra <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2011-03-04Merge branch 'perf/urgent' into perf/coreIngo Molnar3-1/+165
Merge reason: Pick up updates before queueing up dependent patches. Signed-off-by: Ingo Molnar <[email protected]>
2011-03-04x86-64, NUMA: Revert NUMA affine page table allocationTejun Heo4-58/+8
This patch reverts NUMA affine page table allocation added by commit 1411e0ec31 (x86-64, numa: Put pgtable to local node memory). The commit made an undocumented change where the kernel linear mapping strictly follows intersection of e820 memory map and NUMA configuration. If the physical memory configuration has holes or NUMA nodes are not properly aligned, this leads to using unnecessarily smaller mapping size which leads to increased TLB pressure. For details, http://thread.gmane.org/gmane.linux.kernel/1104672 Patches to fix the problem have been proposed but the underlying code needs more cleanup and the approach itself seems a bit heavy handed and it has been determined to revert the feature for now and come back to it in the next developement cycle. http://thread.gmane.org/gmane.linux.kernel/1105959 As init_memory_mapping_high() callsites have been consolidated since the commit, reverting is done manually. Also, the RED-PEN comment in arch/x86/mm/init.c is not restored as the problem no longer exists with memblock based top-down early memory allocation. Signed-off-by: Tejun Heo <[email protected]> Cc: Yinghai Lu <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: Thomas Gleixner <[email protected]>
2011-03-03xen/timer: Missing IRQF_NO_SUSPEND in timer code broke suspend.Ian Campbell1-1/+3
The patches missed an indirect use of IRQF_NO_SUSPEND pulled in via IRQF_TIMER. The following patch fixes the issue. With this fixlet PV guest migration works just fine. I also booted the entire series as a dom0 kernel and it appeared fine. Signed-off-by: Ian Campbell <[email protected]> Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
2011-03-03xen: handled remapped IRQs when enabling a pcifront PCI device.Ian Campbell1-8/+14
This happens to not be an issue currently because we take pains to try to ensure that the GSI-IRQ mapping is 1-1 in a PV guest and that regular event channels do not clash. However a subsequent patch is going to break this 1-1 mapping. Signed-off-by: Ian Campbell <[email protected]> Signed-off-by: Konrad Rzeszutek Wilk <[email protected]> Cc: Stefano Stabellini <[email protected]> Cc: Jeremy Fitzhardinge <[email protected]>
2011-03-03xen: Mark all initial reserved pages for the balloon as INVALID_P2M_ENTRY.Konrad Rzeszutek Wilk4-7/+12
With this patch, we diligently set regions that will be used by the balloon driver to be INVALID_P2M_ENTRY and under the ownership of the balloon driver. We are OK using the __set_phys_to_machine as we do not expect to be allocating any P2M middle or entries pages. The set_phys_to_machine has the side-effect of potentially allocating new pages and we do not want that at this stage. We can do this because xen_build_mfn_list_list will have already allocated all such pages up to xen_max_p2m_pfn. We also move the check for auto translated physmap down the stack so it is present in __set_phys_to_machine. [v2: Rebased with mmu->p2m code split] Reviewed-by: Ian Campbell <[email protected]> Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
2011-03-03x86, amd-nb: Misc cleanliness fixesBorislav Petkov2-14/+16
Make functions used strictly in bool context return bool. Also, fixup used types and comments, and make a local function static, while at it. Signed-off-by: Borislav Petkov <[email protected]> Cc: Borislav Petkov <[email protected]> LKML-Reference: <20110303115932.GA8603@aftab> Signed-off-by: Ingo Molnar <[email protected]>
2011-03-03x86: Work around old gas bugJan Beulich1-4/+4
Add extra parentheses around a couple of definitions introduced by "x86: Cleanup vector usage" and used in assembly macro arguments, and remove spaces. Without that old (2.16.1) gas would see more macro arguments than were actually specified. Reported-and-tested-by: Andrew Morton <[email protected]> Signed-off-by: Jan Beulich <[email protected]> Cc: Shaohua Li <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2011-03-02Merge branch 'devicetree/merge' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds1-2/+1
* 'devicetree/merge' of git://git.secretlab.ca/git/linux-2.6: of/promtree: allow DT device matching by fixing 'name' brokenness (v5) x86: OLPC: have prom_early_alloc BUG rather than return NULL of/flattree: Drop an uninteresting message to pr_debug level of: Add missing of_address.h to xilinx ehci driver
2011-03-02Merge branch 'fixes' of ↵Linus Torvalds2-6/+13
git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] p4-clockmod: print EST-capable warning message only once [CPUFREQ] fix BUG on cpufreq policy init failure [CPUFREQ] Fix another notifier leak in powernow-k8. [CPUFREQ] Missing "unregister_cpu_notifier" in powernow-k8.c
2011-03-02Merge branch 'idle-release' of ↵Linus Torvalds1-0/+5
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6 * 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6: intel_idle: disable Atom/Lincroft HW C-state auto-demotion intel_idle: disable NHM/WSM HW C-state auto-demotion
2011-03-02x86: OLPC: have prom_early_alloc BUG rather than return NULLAndres Salomon1-2/+1
..similar to what sparc's prom_early_alloc does. Signed-off-by: Andres Salomon <[email protected]> Signed-off-by: Grant Likely <[email protected]>
2011-03-02x86-64, NUMA: Better explain numa_distance handlingTejun Heo2-2/+15
Handling of out-of-bounds distances and allocation failure can use better documentation. Add it. Signed-off-by: Tejun Heo <[email protected]> Cc: Yinghai Lu <[email protected]> Acked-by: David Rientjes <[email protected]>
2011-03-02x86-64, NUMA: Fix distance table handlingYinghai Lu2-11/+11
NUMA distance table handling has the following problems. * numa_reset_distance() uses numa_distance * sizeof(numa_distance[0]) as the table size when it should be using the square of numa_distance. * The same size miscalculation when allocation space for phys_dist in numa_emulation(). * In numa_emulation(), phys_dist must be reserved; otherwise, the new emulated distance table may overlap it. Fix them and, while at it, take numa_distance_cnt resetting in numa_reset_distance() out of the if block to simplify the code a bit. David Rientjes reported incorrect handling of distance table during emulation. -tj: Edited out numa_alloc_distance() related changes which weren't necessary and rewrote patch description. -v2: Ingo was unhappy with 80-column limit induced linebreaks. Let lines run over 80-column. Signed-off-by: Yinghai Lu <[email protected]> Reported-by: David Rientjes <[email protected]> Signed-off-by: Tejun Heo <[email protected]> Cc: Ingo Molnar <[email protected]> Acked-by: David Rientjes <[email protected]>
2011-03-02perf, x86: Add Intel SandyBridge CPU supportLin Ming3-1/+165
This patch adds basic SandyBridge support, including hardware cache events and PEBS events support. It has been tested on SandyBridge CPUs with perf stat and also with PEBS based profiling - both work fine. The patch does not affect other models. v2 -> v3: - fix PEBS event 0xd0 with right umask combinations - move snb pebs constraint assignment to intel_pmu_init v1 -> v2: - add more raw and PEBS events constraints - use offcore events for LLC-* cache events - remove the call to Nehalem workaround enable_all function Signed-off-by: Lin Ming <[email protected]> Acked-by: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Andi Kleen <[email protected]> LKML-Reference: <1299072424.2175.24.camel@localhost> Signed-off-by: Ingo Molnar <[email protected]>
2011-03-02x86: Fix a bogus unwind annotation in lib/semaphore_32.SJan Beulich1-1/+1
'simple' would have required specifying current frame address and return address location manually, but that's obviously not the case (and not necessary) here. Signed-off-by: Jan Beulich <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2011-03-01x86, build: Make sure mkpiggy fails on read errorDaniel J Blueman1-1/+6
Ensure build doesn't silently continue despite read failure, addressing a warning due to the unchecked call. Signed-off-by: Daniel J Blueman <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: H. Peter Anvin <[email protected]>
2011-03-01[CPUFREQ] p4-clockmod: print EST-capable warning message only onceNaga Chumbalkar1-3/+3
Print the message only once. I see it 16 times on a 2P box with 16 logical CPUs. Signed-off-by: Naga Chumbalkar <[email protected]>
2011-03-01[CPUFREQ] Fix another notifier leak in powernow-k8.Dave Jones1-2/+2
Do the notifier registration later, so we don't have to worry about freeing it if we fail the msr allocation. Signed-off-by: Dave Jones <[email protected]>
2011-03-01[CPUFREQ] Missing "unregister_cpu_notifier" in powernow-k8.cNeil Brown1-1/+8
It appears that when powernow-k8 finds that No compatible ACPI _PSS objects found. and suggests Try again with latest BIOS. it fails the module load, but does not unregister the cpu_notifier that was registered in powernowk8_init This ends up leaving freed memory on the cpu notifier list for some other poor module (e.g. md/raid5) to come along and trip over. The following might be a partial fix, but I suspect there is probably other clean-up that is needed. ( https://bugzilla.novell.com/show_bug.cgi?id=655215 has full dmesg traces). Signed-off-by: Dave Jones <[email protected]> Signed-off-by: Neil Brown <[email protected]>
2011-02-28x86: Remove unused bits from lib/thunk_*.SJan Beulich2-45/+0
Some of the items removed were apparently never used, others simply didn't get removed with their last user. Signed-off-by: Jan Beulich <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2011-02-28x86: Use {push,pop}_cfi in more placesJan Beulich7-98/+49
Cleaning up and shortening code... Signed-off-by: Jan Beulich <[email protected]> Cc: Alexander van Heukelum <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2011-02-28x86-64: Add CFI annotations to lib/rwsem_64.SJan Beulich1-22/+34
These weren't part of the initial commit of this code. Signed-off-by: Jan Beulich <[email protected]> Cc: Alexander van Heukelum <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2011-02-28x86: Use u32 instead of long to set reset vector back to 0Don Zickus1-1/+1
A customer of ours, complained that when setting the reset vector back to 0, it trashed other data and hung their box. They noticed when only 4 bytes were set to 0 instead of 8, everything worked correctly. Mathew pointed out: | | We're supposed to be resetting trampoline_phys_low and | trampoline_phys_high here, which are two 16-bit values. | Writing 64 bits is definitely going to overwrite space | that we're not supposed to be touching. | So limit the area modified to u32. Signed-off-by: Don Zickus <[email protected]> Acked-by: Matthew Garrett <[email protected]> Cc: <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2011-02-28percpu, x86: Add arch-specific this_cpu_cmpxchg_double() supportChristoph Lameter3-0/+108
Support this_cpu_cmpxchg_double() using the cmpxchg16b and cmpxchg8b instructions. -tj: s/percpu_cmpxchg16b/percpu_cmpxchg16b_double/ for consistency and other cosmetic changes. Signed-off-by: Christoph Lameter <[email protected]> Signed-off-by: Tejun Heo <[email protected]>
2011-02-25x86, asm: Cleanup unnecssary macros in asm-offsets.cStratos Psomadakis4-12/+7
PAGE_SIZE_asm, PAGE_SHIFT_asm, THREAD_SIZE_asm can be safely removed from asm-offsets.c, and be replaced by their non-'_asm' counterparts in the code that uses them, since the _AC macro defined in include/linux/const.h makes PAGE_SIZE/PAGE_SHIFT/THREAD_SIZE work with as. Signed-off-by: Stratos Psomadakis <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: H. Peter Anvin <[email protected]>
2011-02-25Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds5-14/+27
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86 quirk: Fix polarity for IRQ0 pin2 override on SB800 systems x86/mrst: Fix apb timer rating when lapic timer is used x86: Fix reboot problem on VersaLogic Menlow boards
2011-02-25xen: suspend: add "arch" to pre/post suspend hooksIan Campbell1-3/+3
xen_pre_device_suspend is unused on ia64. Signed-off-by: Ian Campbell <[email protected]> Reviewed-by: Konrad Rzeszutek Wilk <[email protected]>
2011-02-25xen: switch to new schedop hypercall by default.Ian Campbell1-2/+2
Rename old interface to sched_op_compat and rename sched_op_new to simply sched_op. Signed-off-by: Ian Campbell <[email protected]> Reviewed-by: Konrad Rzeszutek Wilk <[email protected]>
2011-02-25xen: use new schedop interface for suspendIan Campbell1-3/+10
Take the opportunity to comment on the semantics of the PV guest suspend hypercall arguments. Signed-off-by: Ian Campbell <[email protected]> Reviewed-by: Konrad Rzeszutek Wilk <[email protected]>
2011-02-25xen: fix compile issue if XEN is enabled but XEN_PVHVM is disabledStefano Stabellini1-0/+2
Signed-off-by: Stefano Stabellini <[email protected]>
2011-02-25xen: PV on HVM: support PV spinlocks and IPIsStefano Stabellini3-0/+43
Initialize PV spinlocks on boot CPU right after native_smp_prepare_cpus (that switch to APIC mode and initialize APIC routing); on secondary CPUs on CPU_UP_PREPARE. Enable the usage of event channels to send and receive IPIs when running as a PV on HVM guest. Signed-off-by: Stefano Stabellini <[email protected]>
2011-02-25xen: do not use xen_info on HVM, set pv_info name to "Xen HVM"Stefano Stabellini1-2/+1
Signed-off-by: Stefano Stabellini <[email protected]> Acked-by: Jeremy Fitzhardinge <[email protected]>
2011-02-25x86: dt: Cleanup local apic setupThomas Gleixner6-31/+29
Up to now we force enable the local apic in the devicetree setup uncoditionally and set smp_found_config unconditionally to 1 when a devicetree blob is available. This breaks, when local apic is disabled in the Kconfig. Make it consistent by initializing device tree explicitely before smp_get_config() so a non lapic configuration could be used as well. To be functional that would require to implement PIT as an interrupt host, but the only user of this code until now is ce4100 which requires apics to be available. So we leave this up to those who need it. Tested-by: Sebastian Siewior <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]>
2011-02-25x86-64, NUMA: Fix size of numa_distance arrayDavid Rientjes1-1/+2
numa_distance should be sized like the SLIT, an NxN matrix where N is the highest node id + 1. This patch fixes the calculation to avoid overflowing the array on the subsequent iteration. -tj: The original patch used last index to calculate size. Yinghai pointed out it should be incremented so it is the number of elements instead of the last index to calculate the size of the table. Updated accordingly. Signed-off-by: David Rientjes <[email protected]> Cc: Yinghai Lu <[email protected]> Signed-off-by: Tejun Heo <[email protected]>
2011-02-24Merge branch 'kvm-updates/2.6.38' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds1-0/+2
* 'kvm-updates/2.6.38' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: SVM: Advance instruction pointer in dr_intercept
2011-02-24x86 quirk: Fix polarity for IRQ0 pin2 override on SB800 systemsAndreas Herrmann3-13/+18
On some SB800 systems polarity for IOAPIC pin2 is wrongly specified as low active by BIOS. This caused system hangs after resume from S3 when HPET was used in one-shot mode on such systems because a timer interrupt was missed (HPET signal is high active). For more details see: http://marc.info/?l=linux-kernel&m=129623757413868 Tested-by: Manoj Iyer <[email protected]> Tested-by: Andre Przywara <[email protected]> Signed-off-by: Andreas Herrmann <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: [email protected] # 37.x, 32.x LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2011-02-24ACPI / PM: Merge do_suspend_lowlevel() into acpi_save_state_mem()Rafael J. Wysocki3-4/+7
The function do_suspend_lowlevel() is specific to x86 and defined in assembly code, so it should be called from the x86 low-level suspend code rather than from acpi_suspend_enter(). Merge do_suspend_lowlevel() into the x86's acpi_save_state_mem() and change the name of the latter to acpi_suspend_lowlevel(), so that the function's purpose is better reflected by its name. Signed-off-by: Rafael J. Wysocki <[email protected]>
2011-02-24ACPI / PM: Drop acpi_restore_state_mem()Rafael J. Wysocki2-10/+1
The function acpi_restore_state_mem() has never been and most likely never will be used, so remove it. Signed-off-by: Rafael J. Wysocki <[email protected]>
2011-02-24x86: Rename e820_table_* to pgt_buf_*Yinghai Lu5-20/+20
e820_table_{start|end|top}, which are used to buffer page table allocation during early boot, are now derived from memblock and don't have much to do with e820. Change the names so that they reflect what they're used for. This patch doesn't introduce any behavior change. -v2: Ingo found that earlier patch "x86: Use early pre-allocated page table buffer top-down" caused crash on 32bit and needed to be dropped. This patch was updated to reflect the change. -tj: Updated commit description. Signed-off-by: Yinghai Lu <[email protected]> Signed-off-by: Tejun Heo <[email protected]>
2011-02-24x86: dt: Fix OLPC=y/INTEL_CE=n buildSebastian Andrzej Siewior2-5/+19
Both OLPC and CE4100 activate CONFIG_OF. OLPC uses PROMTREE while CE uses FLATTREE. Compiling for OLPC only breaks due to missing flat tree functions and variables. Use proper wrappers and provide an empty x86_flattree_get_config() inline so OF=y FLATTREE=n builds and works. [ tglx: Make it work with HPET_TIMER=n and make a function static ] Signed-off-by: Sebastian Andrzej Siewior <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]>
2011-02-24x86/mrst: Fix apb timer rating when lapic timer is usedJacob Pan1-1/+1
Need to adjust the clockevent device rating for the structure that will be registered with clockevent system instead of the temporary structure. Without this fix, APB timer rating will be higher than LAPIC timer such that it can not be released later to be used as the broadcast timer. Signed-off-by: Jacob Pan <[email protected]> Cc: Arjan van de Ven <[email protected]> Cc: Alan Cox <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: John Stultz <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2011-02-23rtc: cmos: Add OF bindingsSebastian Andrzej Siewior1-0/+3
This allows to load the OF driver based informations from the device tree. Systems without BIOS may need to perform some initialization. PowerPC creates a PNP device from the OF information and performs this kind of initialization in their private PCI quirk. This looks more generic. This patch also avoids registering the platform RTC driver on X86 if we have a device tree blob. Otherwise we would setup the device based on the hardcoded information in arch/x86 rather than the device tree based one. [ tglx: Changed "int of_have_populated_dt()" to bool as recommended by Grant ] Signed-off-by: Sebastian Andrzej Siewior <[email protected]> Signed-off-by: Dirk Brandewie <[email protected]> Acked-by: Grant Likely <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: Alessandro Zummo <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]>
2011-02-23x86: ce4100: Use OF to setup devicesSebastian Andrzej Siewior1-7/+19
Use device tree information to setup IO_APIC configuration, interrupt routing, HPET and everything else which cannot be enumerated by other means. Signed-off-by: Sebastian Andrzej Siewior <[email protected]> Signed-off-by: Dirk Brandewie <[email protected]> Acked-by: Grant Likely <[email protected]> Cc: [email protected] Cc: [email protected] LKML-Reference: <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]>
2011-02-23x86: ioapic: Add OF bindings for IO_APICSebastian Andrzej Siewior3-0/+112
ioapic_xlate provides a translation from the information in device tree to ioapic related informations. This includes - obtaining hw irq which is the vector number "=> pin number + gsi" - obtaining type (level/edge/..) - programming this information into ioapic ioapic_add_ofnode adds an irq_domain based on informations from the device tree. This information (irq_domain) is required in order to map a device to its proper interrupt controller. [ tglx: Adapted to the io_apic changes, which let us move that whole code to devicetree.c ] Signed-off-by: Sebastian Andrzej Siewior <[email protected]> Signed-off-by: Dirk Brandewie <[email protected]> Acked-by: Grant Likely <[email protected]> Cc: [email protected] Cc: [email protected] LKML-Reference: <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]>
2011-02-23x86: dtb: Add generic bus probeSebastian Andrzej Siewior1-0/+19
For now we probe these busses and we change this to board dependent probes once we have to. Signed-off-by: Sebastian Andrzej Siewior <[email protected]> Signed-off-by: Dirk Brandewie <[email protected]> Acked-by: Grant Likely <[email protected]> Cc: [email protected] Cc: [email protected] LKML-Reference: <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]>
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