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* powerpc/irq: Remove IRQF_DISABLEDYong Zhang2011-11-07
| | | | | | | | | | | | | | | Since commit [e58aa3d2: genirq: Run irq handlers with interrupts disabled], We run all interrupt handlers with interrupts disabled and we even check and yell when an interrupt handler returns with interrupts enabled (see commit [b738a50a: genirq: Warn when handler enables interrupts]). So now this flag is a NOOP and can be removed. Signed-off-by: Yong Zhang <yong.zhang0@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Geoff Levand <geoff@infradead.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: remove non-required uses of include <linux/module.h>Paul Gortmaker2011-10-31
| | | | | | | | | | | None of the files touched here are modules, and they are not exporting any symbols either -- so there is no need to be including the module.h. Builds of all the files remains successful. Even kernel/module.c does not need to include it, since it includes linux/moduleloader.h instead. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* powerpc: various straight conversions from module.h --> export.hPaul Gortmaker2011-10-31
| | | | | | | | | All these files were including module.h just for the basic EXPORT_SYMBOL infrastructure. We can shift them off to the export.h header which is a way smaller footprint and thus realize some compile time gains. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* powerpc: add export.h to files making use of EXPORT_SYMBOLPaul Gortmaker2011-10-31
| | | | | | | | | With module.h being implicitly everywhere via device.h, the absence of explicitly including something for EXPORT_SYMBOL went unnoticed. Since we are heading to fix things up and clean module.h from the device.h file, we need to explicitly include these files now. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* powerpc: Fix device-tree matching for Apple U4 bridgeBenjamin Herrenschmidt2011-09-29
| | | | | | | | | | | | | | Apple Quad G5 has some oddity in it's device-tree which causes the new generic matching code to fail to relate nodes for PCI-E devices below U4 with their respective struct pci_dev. This breaks graphics on those machines among others. This fixes it using a quirk which copies the node pointer from the host bridge for the root complex, which makes the generic code work for the children afterward. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'next/cross-platform' of ↵Linus Torvalds2011-07-26
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc * 'next/cross-platform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc: ARM: Consolidate the clkdev header files ARM: set vga memory base at run-time ARM: convert PCI defines to variables ARM: pci: make pcibios_assign_all_busses use pci_has_flag ARM: remove unnecessary mach/hardware.h includes pci: move microblaze and powerpc pci flag functions into asm-generic powerpc: rename ppc_pci_*_flags to pci_*_flags Fix up conflicts in arch/microblaze/include/asm/pci-bridge.h
| * powerpc: rename ppc_pci_*_flags to pci_*_flagsRob Herring2011-07-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This renames pci flags functions and enums in preparation for creating generic version in asm-generic/pci-bridge.h. The following search and replace is done: s/ppc_pci_/pci_/ s/PPC_PCI_/PCI_/ Direct accesses to ppc_pci_flag variable are replaced with helper functions. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org>
* | atomic: use <linux/atomic.h>Arun Sharma2011-07-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This allows us to move duplicated code in <asm/atomic.h> (atomic_inc_not_zero() for now) to <linux/atomic.h> Signed-off-by: Arun Sharma <asharma@fb.com> Reviewed-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Miller <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'next' of ↵Linus Torvalds2011-07-26
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (99 commits) drivers/virt: add missing linux/interrupt.h to fsl_hypervisor.c powerpc/85xx: fix mpic configuration in CAMP mode powerpc: Copy back TIF flags on return from softirq stack powerpc/64: Make server perfmon only built on ppc64 server devices powerpc/pseries: Fix hvc_vio.c build due to recent changes powerpc: Exporting boot_cpuid_phys powerpc: Add CFAR to oops output hvc_console: Add kdb support powerpc/pseries: Fix hvterm_raw_get_chars to accept < 16 chars, fixing xmon powerpc/irq: Quieten irq mapping printks powerpc: Enable lockup and hung task detectors in pseries and ppc64 defeconfigs powerpc: Add mpt2sas driver to pseries and ppc64 defconfig powerpc: Disable IRQs off tracer in ppc64 defconfig powerpc: Sync pseries and ppc64 defconfigs powerpc/pseries/hvconsole: Fix dropped console output hvc_console: Improve tty/console put_chars handling powerpc/kdump: Fix timeout in crash_kexec_wait_realmode powerpc/mm: Fix output of total_ram. powerpc/cpufreq: Add cpufreq driver for Momentum Maple boards powerpc: Correct annotations of pmu registration functions ... Fix up trivial Kconfig/Makefile conflicts in arch/powerpc, drivers, and drivers/cpufreq
| * | powerpc: Move free_initmem to common codeDave Carroll2011-06-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The free_initmem function is basically duplicated in mm/init_32, and init_64, and is moved to the common 32/64-bit mm/mem.c. All other sections except init were removed in v2.6.15 by 6c45ab992e4299c869fb26427944a8f8ea177024 (powerpc: Remove section free() and linker script bits), and therefore the bulk of the executed code is identical. This patch also removes updating ppc_md.progress to NULL in the powermac late_initcall. Suggested-by: Milton Miller <miltonm@bga.com> Suggested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Dave Carroll <dcarroll@astekcorp.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | powerpc: Avoid extra indirect function call in sending IPIsPaul Mackerras2011-06-19
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | On many platforms (including pSeries), smp_ops->message_pass is always smp_muxed_ipi_message_pass. This changes arch/powerpc/kernel/smp.c so that if smp_ops->message_pass is NULL, it calls smp_muxed_ipi_message_pass directly. This means that a platform doesn't need to set both .message_pass and .cause_ipi, only one of them. It is a slight performance improvement in that it gets rid of an indirect function call at the expense of a predictable conditional branch. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | Merge branch 'for-linus' of ↵Linus Torvalds2011-07-25
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (43 commits) fs: Merge split strings treewide: fix potentially dangerous trailing ';' in #defined values/expressions uwb: Fix misspelling of neighbourhood in comment net, netfilter: Remove redundant goto in ebt_ulog_packet trivial: don't touch files that are removed in the staging tree lib/vsprintf: replace link to Draft by final RFC number doc: Kconfig: `to be' -> `be' doc: Kconfig: Typo: square -> squared doc: Konfig: Documentation/power/{pm => apm-acpi}.txt drivers/net: static should be at beginning of declaration drivers/media: static should be at beginning of declaration drivers/i2c: static should be at beginning of declaration XTENSA: static should be at beginning of declaration SH: static should be at beginning of declaration MIPS: static should be at beginning of declaration ARM: static should be at beginning of declaration rcu: treewide: Do not use rcu_read_lock_held when calling rcu_dereference_check Update my e-mail address PCIe ASPM: forcedly -> forcibly gma500: push through device driver tree ... Fix up trivial conflicts: - arch/arm/mach-ep93xx/dma-m2p.c (deleted) - drivers/gpio/gpio-ep93xx.c (renamed and context nearby) - drivers/net/r8169.c (just context changes)
| * | treewide: Convert uses of struct resource to resource_size(ptr)Joe Perches2011-06-10
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Several fixes as well where the +1 was missing. Done via coccinelle scripts like: @@ struct resource *ptr; @@ - ptr->end - ptr->start + 1 + resource_size(ptr) and some grep and typing. Mostly uncompiled, no cross-compilers. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* / pci/of: Match PCI devices to OF nodes dynamicallyBenjamin Herrenschmidt2011-06-07
|/ | | | | | | | | | | | | | | | | | | | | | | | powerpc has two different ways of matching PCI devices to their corresponding OF node (if any) for historical reasons. The ppc64 one does a scan looking for matching bus/dev/fn, while the ppc32 one does a scan looking only for matching dev/fn on each level in order to be agnostic to busses being renumbered (which Linux does on some platforms). This removes both and instead moves the matching code to the PCI core itself. It's the most logical place to do it: when a pci_dev is created, we know the parent and thus can do a single level scan for the matching device_node (if any). The benefit is that all archs now get the matching for free. There's one hook the arch might want to provide to match a PHB bus to its device node. A default weak implementation is provided that looks for the parent device device node, but it's not entirely reliable on powerpc for various reasons so powerpc provides its own. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Michal Simek <monstr@monstr.eu> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* powerpc/pmac: Don't register pmac PIC syscore ops when HW not presentBenjamin Herrenschmidt2011-05-31
| | | | | | | | | | | | The Apple custom PIC only exist in some earlier machine models, anything with an MPIC will crash on suspend if we register those syscore ops unconditionally. This is a regression caused by commit f5a592f7d74e ("PM / PowerPC: Use struct syscore_ops instead of sysdevs for PM") Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge remote branch 'origin/master' into mergeBenjamin Herrenschmidt2011-05-20
|\ | | | | | | | | | | | | Manual merge of arch/powerpc/kernel/smp.c and add missing scheduler_ipi() call to arch/powerpc/platforms/cell/interrupt.c Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * PM / PowerPC: Use struct syscore_ops instead of sysdevs for PMRafael J. Wysocki2011-05-11
| | | | | | | | | | | | | | | | | | | | | | | | Make some PowerPC architecture's code use struct syscore_ops objects for power management instead of sysdev classes and sysdevs. This simplifies the code and reduces the kernel's memory footprint. It also is necessary for removing sysdevs from the kernel entirely in the future. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
* | powerpc/psurge: Create a irq_host for secondary cpusMilton Miller2011-05-19
| | | | | | | | | | | | | | | | | | | | | | | | | | Create a dummy irq_host using the generic dummy irq chip for the secondary cpus to use. Create a direct irq mapping for the ipi and register the ipi action handler against it. If for some unlikely reason part of this fails then don't detect the secondary cpus. This removes another instance of NO_IRQ_IGNORE, records the ipi stats for the secondary cpus, and runs the ipi on the interrupt stack. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc: Add kconfig for muxed smp ipi supportMilton Miller2011-05-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Compile the new smp ipi mux and demux code only if a platform will make use of it. The new config is selected as required. The new cause_ipi smp op is only available conditionally to point out configs where the select is required; this makes setting the op an immediate fail instead of a deferred unresolved symbol at link. This also creates a new config for power surge powermac upgrade support that can be disabled in expert mode but is default on. I also removed the depends / default y on CONFIG_XICS since it is selected by PSERIES. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc: Consolidate ipi message mux and demuxMilton Miller2011-05-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Consolidate the mux and demux of ipi messages into smp.c and call a new smp_ops callback to actually trigger the ipi. The powerpc architecture code is optimised for having 4 distinct ipi triggers, which are mapped to 4 distinct messages (ipi many, ipi single, scheduler ipi, and enter debugger). However, several interrupt controllers only provide a single software triggered interrupt that can be delivered to each cpu. To resolve this limitation, each smp_ops implementation created a per-cpu variable that is manipulated with atomic bitops. Since these lines will be contended they are optimialy marked as shared_aligned and take a full cache line for each cpu. Distro kernels may have 2 or 3 of these in their config, each taking per-cpu space even though at most one will be in use. This consolidation removes smp_message_recv and replaces the single call actions cases with direct calls from the common message recognition loop. The complicated debugger ipi case with its muxed crash handling code is moved to debug_ipi_action which is now called from the demux code (instead of the multi-message action calling smp_message_recv). I put a call to reschedule_action to increase the likelyhood of correctly merging the anticipated scheduler_ipi() hook coming from the scheduler tree; that single required call can be inlined later. The actual message decode is a copy of the old pseries xics code with its memory barriers and cache line spacing, augmented with a per-cpu unsigned long based on the book-e doorbell code. The optional data is set via a callback from the implementation and is passed to the new cause-ipi hook along with the logical cpu number. While currently only the doorbell implemntation uses this data it should be almost zero cost to retrieve and pass it -- it adds a single register load for the argument from the same cache line to which we just completed a store and the register is dead on return from the call. I extended the data element from unsigned int to unsigned long in case some other code wanted to associate a pointer. The doorbell check_self is replaced by a call to smp_muxed_ipi_resend, conditioned on the CPU_DBELL feature. The ifdef guard could be relaxed to CONFIG_SMP but I left it with BOOKE for now. Also, the doorbell interrupt vector for book-e was not calling irq_enter and irq_exit, which throws off cpu accounting and causes code to not realize it is running in interrupt context. Add the missing calls. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc: Remove powermac/pic.hMilton Miller2011-05-19
| | | | | | | | | | | | | | | | Its unused, and of the three declarations, one is duplicated in pmac.h, the second is static and the third is renamed and static. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc: Remove checks for MSG_ALL and MSG_ALL_BUT_SELFMilton Miller2011-05-19
| | | | | | | | | | | | | | | | Now that smp_ops->smp_message_pass is always called with an (online) cpu number for the target remove the checks for MSG_ALL and MSG_ALL_BUT_SELF. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/irq: Stop exporting irq_mapGrant Likely2011-05-04
| | | | | | | | | | | | First step in eliminating irq_map[] table entirely Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/smp: smp_ops->kick_cpu() should be able to failMichael Ellerman2011-04-20
|/ | | | | | | | | | | | | When we start a cpu we use smp_ops->kick_cpu(), which currently returns void, it should be able to fail. Convert it to return int, and update all uses. Convert all the current error cases to return -ENOENT, which is what would eventually be returned by __cpu_up() currently when it doesn't detect the cpu as coming up in time. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/powermac: Build fix with SMP and CPU hotplugBenjamin Herrenschmidt2011-04-18
| | | | Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* Merge branch 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6Linus Torvalds2011-04-07
|\ | | | | | | | | * 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6: Fix common misspellings
| * Fix common misspellingsLucas De Marchi2011-03-31
| | | | | | | | | | | | Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
* | powerpc/pmac/smp: Remove no-longer needed preempt workaroundBenjamin Herrenschmidt2011-04-01
| | | | | | | | | | | | | | The generic code properly re-initializes the preempt count in the idle thread now Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/smp: Don't expose per-cpu "cpu_state" arrayBenjamin Herrenschmidt2011-04-01
| | | | | | | | | | | | | | | | Instead, keep it static, expose an accessor and use that from the PowerMac code. Avoids easy namespace collisions and will make it easier to consolidate with other implementations. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/pmac/smp: Fix CPU hotplug crashes on some machinesBenjamin Herrenschmidt2011-04-01
| | | | | | | | | | | | | | | | | | | | | | | | | | On some machines that use i2c to synchronize the timebases (such as PowerMac7,2/7,3 G5 machines), hotplug CPU would crash when putting back a new CPU online due to the underlying i2c bus being closed. This uses the newly added bringup_done() callback to move the close along with other housekeeping calls, and adds a CPU notifier to re-open the i2c bus around subsequent hotplug operations Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/pmac/smp: Properly NAP offlined CPU on G5Benjamin Herrenschmidt2011-04-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current code soft-disables, and then goes to NAP mode which turns interrupts on. That means that if an interrupt occurs, we will hit the masked interrupt code path which isn't what we want, as it will return with EE off, which will either get us out of NAP mode, or fail to enter it (according to spec). Instead, let's just rely on the fact that it is safe to take decrementer interrupts on an offline CPU and leave interrupts enabled. We can also get rid of the special case in asm for power4_cpu_offline_powersave() and just use power4_idle(). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/pmac/smp: Remove HMT changes for PowerMac offline codeBenjamin Herrenschmidt2011-04-01
| | | | | | | | | | | | | | Those instructions do nothing on non-threaded processors such as 970's used on those machines. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/pmac/smp: Consolidate 32-bit and 64-bit PowerMac cpu_die in one fileBenjamin Herrenschmidt2011-04-01
| | | | | | | | Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/pmac/smp: Fixup smp_core99_cpu_disable() and use it on 64-bitBenjamin Herrenschmidt2011-04-01
| | | | | | | | | | | | | | | | | | | | Use the generic code, just add the MPIC priority setting, I don't see any use in mucking around with the decrementer, as 32-bit will have EE off all along, and 64-bit will be able to deal with it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/pmac/smp: Fix 32-bit PowerMac cpu_dieBenjamin Herrenschmidt2011-04-01
| | | | | | | | | | | | Use generic cpu_state, call idle_task_exit() properly, and remove smp_core99_cpu_die() which isn't useful, the generic function does the job just fine.
* | powerpc/smp: Remove unused smp_ops->cpu_enable()Benjamin Herrenschmidt2011-04-01
|/ | | | | | | Remove the last remnants of cpu_enable(), everybody uses the normal __cpu_up() path now Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Convert to new irq_* function namesThomas Gleixner2011-03-29
| | | | | | Scripted with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* powerpc: mac: pic: Use irqd_is_level_type()Thomas Gleixner2011-03-29
| | | | | | | No need for a redundant sparse irq lookup. irqdata provides the same information. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* powerpc: Use proper accessors for IRQ_* flagsThomas Gleixner2011-03-29
| | | | | | | Use the proper accessors instead of open access to irq_desc. Converted with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* Merge branch 'next' of ↵Linus Torvalds2011-03-18
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (62 commits) powerpc/85xx: Fix signedness bug in cache-sram powerpc/fsl: 85xx: document cache sram bindings powerpc/fsl: define binding for fsl mpic interrupt controllers powerpc/fsl_msi: Handle msi-available-ranges better drivers/serial/ucc_uart.c: Add of_node_put to avoid memory leak powerpc/85xx: Fix SPE float to integer conversion failure powerpc/85xx: Update sata controller compatible for p1022ds board ATA: Add FSL sata v2 controller support powerpc/mpc8xxx_gpio: simplify searching for 'fsl, qoriq-gpio' compatiable powerpc/8xx: remove obsolete mgsuvd board powerpc/82xx: rename and update mgcoge board support powerpc/83xx: rename and update kmeter1 powerpc/85xx: Workaroudn e500 CPU erratum A005 powerpc/fsl_pci: Add support for FSL PCIe controllers v2.x powerpc/85xx: Fix writing to spin table 'cpu-release-addr' on ppc64e powerpc/pseries: Disable MSI using new interface if possible powerpc: Enable GENERIC_HARDIRQS_NO_DEPRECATED. powerpc: core irq_data conversion. powerpc: sysdev/xilinx_intc irq_data conversion. powerpc: sysdev/uic irq_data conversion. ... Fix up conflicts in arch/powerpc/sysdev/fsl_msi.c (due to getting rid of of_platform_driver in arch/powerpc)
| * powerpc: platforms/powermac irq_data conversion.Lennert Buytenhek2011-03-09
| | | | | | | | | | Signed-off-by: Lennert Buytenhek <buytenh@secretlab.ca> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | [CPUFREQ] Remove the pm_message_t argument from driver suspendRafael J. Wysocki2011-03-16
|/ | | | | | | | None of the existing cpufreq drivers uses the second argument of its .suspend() callback (which isn't useful anyway), so remove it. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Dave Jones <davej@redhat.com>
* powerpc/powermac: Make auto-loading of therm_pm72 possibleMarc Zyngier2010-12-08
| | | | | | | | | | | | | | | | | | | | | The therm_pm72 driver, used on the PowerMac G5 range, cannot be auto-loaded, since the driver itself creates both the device node and the driver instance. Moving the device node creation to the platform setup code and adding the necessary MODULE_DEVICE_TABLE() information allows the driver to be automatically loaded by udev on any semi-modern distribution. It "fixes" a major source of problem on G5 machines where the driver wasn't explicitely loaded by default, and the system would automatically shutdown under load. Tested on an Xserve G5. Signed-off-by: Marc Zyngier <maz@misterjones.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/powermac/pfunc_core.c: Add of_node_put to avoid memory leakJulia Lawall2010-09-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a call to of_node_put in the error handling code following a call to of_find_node_by_phandle. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r exists@ local idexpression x; expression E,E1; statement S; @@ *x = (of_find_node_by_path |of_find_node_by_name |of_find_node_by_phandle |of_get_parent |of_get_next_parent |of_get_next_child |of_find_compatible_node |of_match_node )(...); ... if (x == NULL) S <... when != x = E *if (...) { ... when != of_node_put(x) when != if (...) { ... of_node_put(x); ... } ( return <+...x...+>; | * return ...; ) } ...> of_node_put(x); // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/powermac: Drop unnecessary null testJulia Lawall2010-08-24
| | | | | | | | | | | | | | | | | | | | | | | | for_each_node_by_name binds its first argument to a non-null value, and thus any null test on the value of that argument is superfluous. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ iterator I; expression x,E; @@ I(x,...) { <... ( - (x != NULL) && E ...> } // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/powermac: Drop unnecessary of_node_putJulia Lawall2010-08-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | for_each_node_by_name only exits when its first argument is NULL, and a subsequent call to of_node_put on that argument is unnecessary. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ iterator name for_each_node_by_name; expression np,E; identifier l; @@ for_each_node_by_name(np,...) { ... when != break; when != goto l; } ... when != np = E - of_node_put(np); // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Reviewed-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* Merge branch 'irq-core-for-linus' of ↵Linus Torvalds2010-08-06
|\ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: xen: Do not suspend IPI IRQs. powerpc: Use IRQF_NO_SUSPEND not IRQF_TIMER for non-timer interrupts ixp4xx-beeper: Use IRQF_NO_SUSPEND not IRQF_TIMER for non-timer interrupt irq: Add new IRQ flag IRQF_NO_SUSPEND
| * powerpc: Use IRQF_NO_SUSPEND not IRQF_TIMER for non-timer interruptsIan Campbell2010-07-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | kw_i2c_irq and via_pmu_interrupt are not timer interrupts and therefore should not use IRQF_TIMER. Use the recently introduced IRQF_NO_SUSPEND instead since that is the actual desired behaviour. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: linuxppc-dev@ozlabs.org Cc: devicetree-discuss@lists.ozlabs.org LKML-Reference: <1280398595-29708-3-git-send-email-ian.campbell@citrix.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds2010-08-05
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6: (63 commits) of/platform: Register of_platform_drivers with an "of:" prefix of/address: Clean up function declarations of/spi: call of_register_spi_devices() from spi core code of: Provide default of_node_to_nid() implementation. of/device: Make of_device_make_bus_id() usable by other code. of/irq: Fix endian issues in parsing interrupt specifiers of: Fix phandle endian issues of/flattree: fix of_flat_dt_is_compatible() to match the full compatible string of: remove of_default_bus_ids of: make of_find_device_by_node generic microblaze: remove references to of_device and to_of_device sparc: remove references to of_device and to_of_device powerpc: remove references to of_device and to_of_device of/device: Replace of_device with platform_device in includes and core code of/device: Protect against binding of_platform_drivers to non-OF devices of: remove asm/of_device.h of: remove asm/of_platform.h of/platform: remove all of_bus_type and of_platform_bus_type references of: Merge of_platform_bus_type with platform_bus_type drivercore/of: Add OF style matching to platform bus ... Fix up trivial conflicts in arch/microblaze/kernel/Makefile due to just some obj-y removals by the devicetree branch, while the microblaze updates added a new file.
| * | of/address: Clean up function declarationsGrant Likely2010-08-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch moves the declaration of of_get_address(), of_get_pci_address(), and of_pci_address_to_resource() out of arch code and into the common linux/of_address header file. This patch also fixes some of the asm/prom.h ordering issues. It still includes some header files that it ideally shouldn't be, but at least the ordering is consistent now so that of_* overrides work. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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