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* xen/p2m: Make debug/xen/mmu/p2m visible again.Konrad Rzeszutek Wilk2011-09-233-20/+32
| | | | | | | | | | We dropped a lot of the MMU debugfs in favour of using tracing API - but there is one which just provides mostly static information that was made invisible by this change. Bring it back. Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* Revert "xen/debug: WARN_ON when identity PFN has no _PAGE_IOMAP flag set."Konrad Rzeszutek Wilk2011-08-092-46/+0
| | | | | | | | We don' use it anymore and there are more false positives. This reverts commit fc25151d9ac7d809239fe68de0a1490b504bb94a. Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds2011-08-071-2/+4
|\ | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc: Fix build with DEBUG_PAGEALLOC enabled.
| * sparc: Fix build with DEBUG_PAGEALLOC enabled.David S. Miller2011-08-061-2/+4
| | | | | | | | | | | | | | arch/sparc/mm/init_64.c:1622:22: error: unused variable '__swapper_4m_tsb_phys_patch_end' [-Werror=unused-variable] arch/sparc/mm/init_64.c:1621:22: error: unused variable '__swapper_4m_tsb_phys_patch' [-Werror=unused-variable] Signed-off-by: David S. Miller <davem@davemloft.net>
* | arm: remove stale export of 'sha_transform'Linus Torvalds2011-08-071-3/+0
| | | | | | | | | | | | | | The generic library code already exports the generic function, this was left-over from the ARM-specific version that just got removed. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | arm: remove "optimized" SHA1 routinesLinus Torvalds2011-08-072-212/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since commit 1eb19a12bd22 ("lib/sha1: use the git implementation of SHA-1"), the ARM SHA1 routines no longer work. The reason? They depended on the larger 320-byte workspace, and now the sha1 workspace is just 16 words (64 bytes). So the assembly version would overwrite the stack randomly. The optimized asm version is also probably slower than the new improved C version, so there's no reason to keep it around. At least that was the case in git, where what appears to be the same assembly language version was removed two years ago because the optimized C BLK_SHA1 code was faster. Reported-and-tested-by: Joachim Eastwood <manabian@gmail.com> Cc: Andreas Schwab <schwab@linux-m68k.org> Cc: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'stable/bug.fixes' of ↵Linus Torvalds2011-08-063-7/+6
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen * 'stable/bug.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: xen/trace: Fix compile error when CONFIG_XEN_PRIVILEGED_GUEST is not set xen: Fix misleading WARN message at xen_release_chunk xen: Fix printk() format in xen/setup.c xen/tracing: it looks like we wanted CONFIG_FTRACE xen/self-balloon: Add dependency on tmem. xen/balloon: Fix compile errors - missing header files. xen/grant: Fix compile warning. xen/pciback: remove duplicated #include
| * xen/trace: Fix compile error when CONFIG_XEN_PRIVILEGED_GUEST is not setKonrad Rzeszutek Wilk2011-08-051-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | with CONFIG_XEN and CONFIG_FTRACE set we get this: arch/x86/xen/trace.c:22: error: ‘__HYPERVISOR_console_io’ undeclared here (not in a function) arch/x86/xen/trace.c:22: error: array index in initializer not of integer type arch/x86/xen/trace.c:22: error: (near initialization for ‘xen_hypercall_names’) arch/x86/xen/trace.c:23: error: ‘__HYPERVISOR_physdev_op_compat’ undeclared here (not in a function) Issue was that the definitions of __HYPERVISOR were not pulled if CONFIG_XEN_PRIVILEGED_GUEST was not set. Reported-by: Randy Dunlap <rdunlap@xenotime.net> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
| * xen: Fix misleading WARN message at xen_release_chunkIgor Mammedov2011-08-041-5/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | WARN message should not complain "Failed to release memory %lx-%lx err=%d\n" ^^^^^^^ about range when it fails to release just one page, instead it should say what pfn is not freed. In addition line: printk(KERN_INFO "xen_release_chunk: looking at area pfn %lx-%lx: " ... printk(KERN_CONT "%lu pages freed\n", len); will be broken if WARN in between this line is fired. So fix it by using a single printk for this. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
| * xen: Fix printk() format in xen/setup.cIgor Mammedov2011-08-041-2/+2
| | | | | | | | | | | | | | Use correct format specifier for unsigned long. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
| * xen/tracing: it looks like we wanted CONFIG_FTRACEJeremy Fitzhardinge2011-08-041-1/+1
| | | | | | | | | | | | | | | | | | Apparently we wanted CONFIG_FTRACE rather the CONFIG_FUNCTION_TRACER. Reported-by: Sander Eikelenboom <linux@eikelenboom.it> Tested-by: Sander Eikelenboom <linux@eikelenboom.it> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds2011-08-0530-258/+661
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc: Size mondo queues more sanely. sparc: Access kernel TSB using physical addressing when possible. sparc: Fix __atomic_add_unless() return value. sparc: use kbuild-generic support for true asm-generic header files sparc: Use popc when possible for ffs/__ffs/ffz. sparc: Set reboot-cmd using reboot data hypervisor call if available. sparc: Add some missing hypervisor API groups. sparc: Use hweight64() in popc emulation. sparc: Use popc if possible for hweight routines. sparc: Minor tweaks to Niagara page copy/clear. sparc: Sanitize cpu feature detection and reporting.
| * | sparc: Size mondo queues more sanely.David S. Miller2011-08-051-7/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is currently no upper limit on the mondo queue sizes we'll use, which guarentees that we'll eventually his page allocation limits, and thus allocation failures, due to MAX_ORDER. Cap the sizes sanely, current limits are: CPU MONDO 2 * max_possible_cpus DEV MONDO 256 (basically NR_IRQS) RES MONDO 128 NRES MONDO 4 Signed-off-by: David S. Miller <davem@davemloft.net>
| * | sparc: Access kernel TSB using physical addressing when possible.David S. Miller2011-08-054-40/+85
| | | | | | | | | | | | | | | | | | | | | | | | On sun4v this is basically required since we point the hypervisor and the TSB walking hardware at these tables using physical addressing too. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | sparc: Fix __atomic_add_unless() return value.Josip Rodin2011-08-041-1/+1
| | | | | | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * | sparc: use kbuild-generic support for true asm-generic header filesSam Ravnborg2011-08-045-9/+5
| | | | | | | | | | | | | | | Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | sparc: Use popc when possible for ffs/__ffs/ffz.David S. Miller2011-08-027-15/+126
| | | | | | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * | sparc: Set reboot-cmd using reboot data hypervisor call if available.David S. Miller2011-08-025-9/+53
| | | | | | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * | sparc: Add some missing hypervisor API groups.David S. Miller2011-08-022-0/+12
| | | | | | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * | sparc: Use hweight64() in popc emulation.David S. Miller2011-08-021-11/+4
| | | | | | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * | sparc: Use popc if possible for hweight routines.David S. Miller2011-08-027-40/+102
| | | | | | | | | | | | | | | | | | Just like powerpc, we code patch at boot time. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | sparc: Minor tweaks to Niagara page copy/clear.David S. Miller2011-08-024-102/+77
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Don't use floating point on Niagara2, use the traditional plain Niagara code instead. Unroll Niagara loops to 128 bytes for copy, and 256 bytes for clear. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | sparc: Sanitize cpu feature detection and reporting.David S. Miller2011-07-284-36/+185
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of evaluating the cpu features for ELF_HWCAP every exec, calculate it once at boot time. Add AV_SPARC_* capability flag bits, compatible with what Solaris reports to applications. Report these capabilities once in the kernel log, and also via /proc/cpuinfo in a new "cpucaps" entry. If available, fetch the cpu features from the machine description 'hwcap-list' property of the 'cpu' node. Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Merge branch 'fixefi' of ↵Linus Torvalds2011-08-041-1/+1
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'fixefi' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: efi: Fix argument types for SetVariable() for ia64
| * | | efi: Fix argument types for SetVariable() for ia64Matthew Garrett2011-08-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The spec says this takes uint32 for attributes, not uintn. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | | | cpuidle: Consistent spelling of cpuidle_idle_call()David Brown2011-08-042-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit a0bfa1373859e9d11dc92561a8667588803e42d8 mispells cpuidle_idle_call() on ARM and SH code. Fix this to be consistent. Cc: Kevin Hilman <khilman@deeprootsystems.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: x86@kernel.org Cc: Len Brown <len.brown@intel.com> Signed-off-by: David Brown <davidb@codeaurora.org> [ Also done by Mark Brown - th ebug has been around forever, and was noticed in -next, but the idle tree never picked it up. Bad bad bad ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | Merge branch 'fixes' of ↵Linus Torvalds2011-08-044-9/+65
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6 * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6: [PARISC] wire up sendmmsg syscall [PARISC] fix return type of __atomic64_add_return [PARISC] Fix futex support
| * | | | [PARISC] wire up sendmmsg syscallJames Bottomley2011-07-312-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | Cc: stable@kernel.org Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | | | [PARISC] fix return type of __atomic64_add_returnJohn David Anglin2011-07-291-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The return type of __atomic64_add_return of should be s64 or long, not int. This fixes the atomic64 test failure that I previously reported. Signed-off-by: John David Anglin <dave.anglin@nrc-cnrc.gc.ca> Cc: stable@kernel.org Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | | | [PARISC] Fix futex supportCarlos O'Donell2011-07-181-6/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implements futex op support and makes futex cmpxchg atomic. Tested on 64-bit SMP kernel running on 2 x PA8700s. [jejb: checkpatch fixes] Signed-off-by: Carlos O'Donell <carlos@systemhalted.org> Tested-by: John David Anglin <dave.anglin@bell.net> Cc: stable@kernel.org Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* | | | | Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6Linus Torvalds2011-08-0417-117/+295
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] signal: use set_restore_sigmask() helper [S390] smp: remove pointless comments in startup_secondary() [S390] qdio: Use kstrtoul_from_user [S390] sclp_async: Use kstrtoul_from_user [S390] exec: remove redundant set_fs(USER_DS) [S390] cpu hotplug: on cpu start wait until being marked active [S390] signal: convert to use set_current_blocked() [S390] asm offsets: fix coding style [S390] Add support for IBM zEnterprise 114 [S390] dasd: check if raw track access is supported [S390] Use diagnose 308 for system reset [S390] Export store_status() function [S390] dasd: use vmalloc for statistics input buffer [S390] Add PSW restart shutdown trigger [S390] missing return in page_table_alloc_pgste [S390] qdio: 2nd stage retry on SIGA-W busy conditions
| * | | | | [S390] signal: use set_restore_sigmask() helperHeiko Carstens2011-08-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We should call set_restore_sigmask() instead of directly setting TIF_RESTORE_SIGMASK. This change should have been done three years earlier... see 4e4c22 "signals: add set_restore_sigmask". Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * | | | | [S390] smp: remove pointless comments in startup_secondary()Heiko Carstens2011-08-031-6/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove pointless comments in startup_secondary(). There is not too much value in having comments like e.g. "call cpu notifiers" just before a call to notify_cpu*(). Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * | | | | [S390] exec: remove redundant set_fs(USER_DS)Mathias Krause2011-08-031-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The address limit is already set in flush_old_exec() so those calls to set_fs(USER_DS) are redundant. Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * | | | | [S390] cpu hotplug: on cpu start wait until being marked activeHeiko Carstens2011-08-031-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the same as fd8a7de1 "x86: cpu-hotplug: Prevent softirq wakeup on wrong CPU". Unlike on x86 this doesn't fix a bug on s390 since we do not have threaded interrupt handlers. However we want to keep the same initialization order like on x86. This should prevent bugs caused by code which assumes (and relies on) the init order is the same on each architecture. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * | | | | [S390] signal: convert to use set_current_blocked()Heiko Carstens2011-08-032-72/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert to use set_current_blocked() like x86. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * | | | | [S390] asm offsets: fix coding styleHeiko Carstens2011-08-031-6/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Because of readability reasons we ignore the 80 character line limit in asm offsets. Just one line per define, nothing else. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * | | | | [S390] Add support for IBM zEnterprise 114Heiko Carstens2011-08-032-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Just fix up the Kconfig description and the elf platform. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * | | | | [S390] Use diagnose 308 for system resetMichael Holzheu2011-08-033-0/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The diagnose 308 call is the prefered method for clearing all ongoing I/O. Therefore if it is available we use it instead of doing a manual reset. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * | | | | [S390] Export store_status() functionMichael Holzheu2011-08-031-20/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For kdump we need a store status function to save the registers for the current CPU. Therefore this patch exports a function "store_status()". In addition to that now also floating point registers are saved correctly. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * | | | | [S390] Add PSW restart shutdown triggerMichael Holzheu2011-08-039-5/+146
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With this patch a new S390 shutdown trigger "restart" is added. If under z/VM "systerm restart" is entered or under the HMC the "PSW restart" button is pressed, the PSW located at 0 (31 bit) or 0x1a0 (64 bit) bit is loaded. Now we execute do_restart() that processes the restart action that is defined under /sys/firmware/shutdown_actions/on_restart. Currently the following actions are possible: reipl (default), stop, vmcmd, dump, and dump_reipl. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| * | | | | [S390] missing return in page_table_alloc_pgsteJan Glauber2011-08-031-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the following compile warning for !CONFIG_PGSTE: CC arch/s390/mm/pgtable.o arch/s390/mm/pgtable.c: In function ‘page_table_alloc_pgste’: arch/s390/mm/pgtable.c:531:1: warning: no return statement in function returning non-void [-Wreturn-type] Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
* | | | | | x86: don't include xen/xen.h in <asm/io.h> unless XEN is enabledLinus Torvalds2011-08-031-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Dmitry Kasatkin reports: "kernel-devel package with kernel headers have no <include/xen> directory if XEN is disabled. Modules which inclide asm/io.h won't compile. XEN related content is behind the CONFIG_XEN flag in the io.h. And <xen/xen.h> should be also behind CONFIG_XEN flag." So move the include of <xen/xen.h> down into the section that is conditional on CONFIG_XEN. Reported-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | Merge branch 'idle-release' of ↵Linus Torvalds2011-08-0311-31/+1090
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: cpuidle: stop depending on pm_idle x86 idle: move mwait_idle_with_hints() to where it is used cpuidle: replace xen access to x86 pm_idle and default_idle cpuidle: create bootparam "cpuidle.off=1" mrst_pmu: driver for Intel Moorestown Power Management Unit
| * | | | | | cpuidle: stop depending on pm_idleLen Brown2011-08-034-5/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | cpuidle users should call cpuidle_call_idle() directly rather than via (pm_idle)() function pointer. Architecture may choose to continue using (pm_idle)(), but cpuidle need not depend on it: my_arch_cpu_idle() ... if(cpuidle_call_idle()) pm_idle(); cc: Kevin Hilman <khilman@deeprootsystems.com> cc: Paul Mundt <lethal@linux-sh.org> cc: x86@kernel.org Acked-by: H. Peter Anvin <hpa@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| * | | | | | x86 idle: move mwait_idle_with_hints() to where it is usedLen Brown2011-08-033-25/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ...and make it static no functional change cc: x86@kernel.org Acked-by: H. Peter Anvin <hpa@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| * | | | | | cpuidle: replace xen access to x86 pm_idle and default_idleLen Brown2011-08-031-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When a Xen Dom0 kernel boots on a hypervisor, it gets access to the raw-hardware ACPI tables. While it parses the idle tables for the hypervisor's beneift, it uses HLT for its own idle. Rather than have xen scribble on pm_idle and access default_idle, have it simply disable_cpuidle() so acpi_idle will not load and architecture default HLT will be used. cc: xen-devel@lists.xensource.com Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Acked-by: H. Peter Anvin <hpa@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
| * | | | | | mrst_pmu: driver for Intel Moorestown Power Management UnitLen Brown2011-08-033-0/+1052
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Moorestown (MRST) Power Management Unit (PMU) driver directs the SOC power states in the "Langwell" south complex (SCU). It hooks pci_platform_pm_ops[] and thus observes all PCI ".set_state" requests. For devices in the SC, the pmu driver translates those PCI requests into the appropriate commands for the SCU. The PMU driver helps implement S0i3, a deep system idle power idle state. Entry into S0i3 is via cpuidle, just like regular processor c-states. S0i3 depends on pre-conditions including uni-processor, graphics off, and certain IO devices in the SC must be off. If those pre-conditions are met, then the PMU allows cpuidle to enter S0i3, otherwise such requests are demoted, either to Atom C4 or Atom C6. This driver is based on prototype work by Bruce Flemming, Illyas Mansoor, Rajeev D. Muralidhar, Vishwesh M. Rudramuni, Hari Seshadri and Sujith Thomas. The current driver also includes contributions from H. Peter Anvin, Arjan van de Ven, Kristen Accardi, and Yong Wang. Thanks for additional review feedback from Alan Cox and Randy Dunlap. Acked-by: Alan Cox <alan@linux.intel.com> Acked-by: H. Peter Anvin <hpa@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | | | | | | Merge branch 'apei-release' of ↵Linus Torvalds2011-08-0313-0/+15
|\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'apei-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: ACPI, APEI, EINJ Param support is disabled by default APEI GHES: 32-bit buildfix ACPI: APEI build fix ACPI, APEI, GHES: Add hardware memory error recovery support HWPoison: add memory_failure_queue() ACPI, APEI, GHES, Error records content based throttle ACPI, APEI, GHES, printk support for recoverable error via NMI lib, Make gen_pool memory allocator lockless lib, Add lock-less NULL terminated single list Add Kconfig option ARCH_HAVE_NMI_SAFE_CMPXCHG ACPI, APEI, Add WHEA _OSC support ACPI, APEI, Add APEI bit support in generic _OSC call ACPI, APEI, GHES, Support disable GHES at boot time ACPI, APEI, GHES, Prevent GHES to be built as module ACPI, APEI, Use apei_exec_run_optional in APEI EINJ and ERST ACPI, APEI, Add apei_exec_run_optional ACPI, APEI, GHES, Do not ratelimit fatal error printk before panic ACPI, APEI, ERST, Fix erst-dbg long record reading issue ACPI, APEI, ERST, Prevent erst_dbg from loading if ERST is disabled
| * \ \ \ \ \ \ Merge branch 'apei' into apei-releaseLen Brown2011-08-0313-0/+15
| |\ \ \ \ \ \ \ | | |_|/ / / / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some trivial conflicts due to other various merges adding to the end of common lists sooner than this one. arch/ia64/Kconfig arch/powerpc/Kconfig arch/x86/Kconfig lib/Kconfig lib/Makefile Signed-off-by: Len Brown <len.brown@intel.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 17:02:42 +0000