- 05 8月, 2011 4 次提交
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由 David S. Miller 提交于
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: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
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: NDavid S. Miller <davem@davemloft.net>
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由 David Brown 提交于
Commit a0bfa137 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: NDavid 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: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Matthew Garrett 提交于
The spec says this takes uint32 for attributes, not uintn. Signed-off-by: NMatthew Garrett <mjg@redhat.com> Signed-off-by: NTony Luck <tony.luck@intel.com>
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- 04 8月, 2011 11 次提交
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由 Josip Rodin 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Sam Ravnborg 提交于
Signed-off-by: NSam Ravnborg <sam@ravnborg.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Linus Torvalds 提交于
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: NDmitry Kasatkin <dmitry.kasatkin@intel.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 WANG Cong 提交于
Fix: arch/cris/arch-v10/kernel/irq.c:239: error: implicit declaration of function 'kgdb_init' arch/cris/arch-v10/kernel/irq.c:240: error: implicit declaration of function 'breakpoint' Declare these two functions. Reported-by: NGeert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: NWANG Cong <xiyou.wangcong@gmail.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: <stable@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 WANG Cong 提交于
Fix: arch/cris/arch-v10/drivers/sync_serial.c:961: error: conflicting types for 'sync_serial_ioctl' Reported-by: NGeert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: NWANG Cong <xiyou.wangcong@gmail.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: <stable@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 WANG Cong 提交于
Fix: arch/cris/arch-v10/drivers/sync_serial.c:628: error: 'ret' undeclared (first use in this function) 'ret' should be 'err'. Reported-by: NGeert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: NWANG Cong <xiyou.wangcong@gmail.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: <stable@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 WANG Cong 提交于
Fix this error: kernel/fork.c:267: error: implicit declaration of function 'alloc_thread_info_node' This is due to renaming alloc_thread_info() to alloc_thread_info_node(). [akpm@linux-foundation.org: coding-style fixes] Reported-by: NGeert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: NWANG Cong <xiyou.wangcong@gmail.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: <stable@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Len Brown 提交于
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: NH. Peter Anvin <hpa@linux.intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Len Brown 提交于
...and make it static no functional change cc: x86@kernel.org Acked-by: NH. Peter Anvin <hpa@linux.intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Len Brown 提交于
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: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com> Acked-by: NH. Peter Anvin <hpa@linux.intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Len Brown 提交于
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: NAlan Cox <alan@linux.intel.com> Acked-by: NH. Peter Anvin <hpa@linux.intel.com> Signed-off-by: NLen Brown <len.brown@intel.com>
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- 03 8月, 2011 19 次提交
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由 Huang Ying 提交于
cmpxchg() is widely used by lockless code, including NMI-safe lockless code. But on some architectures, the cmpxchg() implementation is not NMI-safe, on these architectures the lockless code may need a spin_trylock_irqsave() based implementation. This patch adds a Kconfig option: ARCH_HAVE_NMI_SAFE_CMPXCHG, so that NMI-safe lockless code can depend on it or provide different implementation according to it. On many architectures, cmpxchg is only NMI-safe for several specific operand sizes. So, ARCH_HAVE_NMI_SAFE_CMPXCHG define in this patch only guarantees cmpxchg is NMI-safe for sizeof(unsigned long). Signed-off-by: NHuang Ying <ying.huang@intel.com> Acked-by: NMike Frysinger <vapier@gentoo.org> Acked-by: NPaul Mundt <lethal@linux-sh.org> Acked-by: NHans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: NChris Metcalf <cmetcalf@tilera.com> Acked-by: NRichard Henderson <rth@twiddle.net> CC: Mikael Starvik <starvik@axis.com> Acked-by: NDavid Howells <dhowells@redhat.com> CC: Yoshinori Sato <ysato@users.sourceforge.jp> CC: Tony Luck <tony.luck@intel.com> CC: Hirokazu Takata <takata@linux-m32r.org> CC: Geert Uytterhoeven <geert@linux-m68k.org> CC: Michal Simek <monstr@monstr.eu> Acked-by: NRalf Baechle <ralf@linux-mips.org> CC: Kyle McMartin <kyle@mcmartin.ca> CC: Martin Schwidefsky <schwidefsky@de.ibm.com> CC: Chen Liqin <liqin.chen@sunplusct.com> CC: "David S. Miller" <davem@davemloft.net> CC: Ingo Molnar <mingo@redhat.com> CC: Chris Zankel <chris@zankel.net> Signed-off-by: NLen Brown <len.brown@intel.com>
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由 Heiko Carstens 提交于
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: NHeiko Carstens <heiko.carstens@de.ibm.com>
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由 Heiko Carstens 提交于
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: NHeiko Carstens <heiko.carstens@de.ibm.com>
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由 Mathias Krause 提交于
The address limit is already set in flush_old_exec() so those calls to set_fs(USER_DS) are redundant. Signed-off-by: NMathias Krause <minipli@googlemail.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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由 Heiko Carstens 提交于
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: NHeiko Carstens <heiko.carstens@de.ibm.com>
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由 Heiko Carstens 提交于
Convert to use set_current_blocked() like x86. Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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由 Heiko Carstens 提交于
Because of readability reasons we ignore the 80 character line limit in asm offsets. Just one line per define, nothing else. Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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由 Heiko Carstens 提交于
Just fix up the Kconfig description and the elf platform. Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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由 Michael Holzheu 提交于
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: NMichael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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由 Michael Holzheu 提交于
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: NMichael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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由 Michael Holzheu 提交于
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: NMichael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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由 Jan Glauber 提交于
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: NJan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
Just like powerpc, we code patch at boot time. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
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: NDavid S. Miller <davem@davemloft.net>
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由 Julia Lawall 提交于
Use BUG_ON(x) rather than if(x) BUG(); The semantic patch that fixes this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier x; @@ -if (x) BUG(); +BUG_ON(x); @@ identifier x; @@ -if (!x) BUG(); +BUG_ON(!x); // </smpl> Signed-off-by: NJulia Lawall <julia@diku.dk> Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>
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- 01 8月, 2011 6 次提交
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由 David Brown 提交于
Migrate the driver for the v7-based MSM chips into drivers/gpio. The driver is unchanged, only moved. Change-Id: I810db5b50b71cdca4e869aa0d0310f7f48781a55 Signed-off-by: NDavid Brown <davidb@codeaurora.org> Acked-by: NLinus Walleij <linus.walleij@linaro.org> Acked-by: NNicolas Pitre <nicolas.pitre@linaro.org>
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由 David Brown 提交于
Migrate the driver for the v6-based MSM chips into drivers/gpio. The driver is unchanged, only moved. Change-Id: I03ba597b95b4d62b42da112a8efac88d67aa40f9 Signed-off-by: NDavid Brown <davidb@codeaurora.org> Acked-by: NLinus Walleij <linus.walleij@linaro.org> Acked-by: NNicolas Pitre <nicolas.pitre@linaro.org>
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由 David Brown 提交于
No need to have a separate header file containing only register definitions that are used by a single driver. Fold these into the gpio driver. Signed-off-by: NDavid Brown <davidb@codeaurora.org>
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由 David Brown 提交于
The gpiomux.h header contains some SOC ifdefs. However, the API that is actually used by the GPIO driver only uses two functions that are general. Move these general definitions into a public header file. Change-Id: Ia5df8af87dba268225598d56908e523bcfc24ef6 Signed-off-by: NDavid Brown <davidb@codeaurora.org> Acked-by: NLinus Walleij <linus.walleij@linaro.org> Acked-by: NNicolas Pitre <nicolas.pitre@linaro.org>
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由 David Brown 提交于
Select the GPIO register configuration at runtime rather than through idefs. Change-Id: I02ea0a3d61bc81669f32097c32420f0688552231 Signed-off-by: NDavid Brown <davidb@codeaurora.org> Acked-by: NLinus Walleij <linus.walleij@linaro.org> Acked-by: NNicolas Pitre <nicolas.pitre@linaro.org>
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由 David Brown 提交于
Put an SOC prefix on each GPIO register definition, eliminating the need to have SOC ifdefs around the definitions. Change-Id: I5a01fd328a89ce1be610847934d6e118f5465e42 Signed-off-by: NDavid Brown <davidb@codeaurora.org> Acked-by: NLinus Walleij <linus.walleij@linaro.org> Acked-by: NNicolas Pitre <nicolas.pitre@linaro.org>
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