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path: root/arch/powerpc/platforms/cell/pervasive.c
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2008-04-01[POWERPC] Replace remaining __FUNCTION__ occurrencesHarvey Harrison
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-09[POWERPC] cell: Move cbe_regs.h to include/asm-powerpc/cell-regs.hBenjamin Herrenschmidt
The new Cell EDAC driver needs that file, oprofile also does ugly path tricks to get to it, it's time to move it to asm-powerpc. While at it, rename it to be consistent with cell-pmu.h (and dashes look nicer than underscores anyway). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-25[POWERPC] cell: Support pinhole-reset on IBM cell bladesArnd Bergmann
The Cell Broadband Engine has a method of injecting a system-reset-exception from an external source into the operating system, which should trigger the regular behaviour of entering xmon or kdump. Unfortunately, the exception handler cannot distinguish it from other interrupt causes by the SRR1 register, which gets used for this on Power 6 and others. IBM Blade servers that want to support triggering the system reset exception using a pinhole button in the front panel therefore use an extra register to determine the reset cause. Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> -- Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-11powerpc: fixup hard_irq_disable semanticsBenjamin Herrenschmidt
This patch renames the raw hard_irq_{enable,disable} into __hard_irq_{enable,disable} and introduces a higher level hard_irq_disable() function that can be used by any code to enforce that IRQs are fully disabled, not only lazy disabled. The difference with the __ versions is that it will update some per-processor fields so that the kernel keeps track and properly re-enables them in the next local_irq_disable(); This prepares powerpc for my next patch that introduces hard_irq_disable() generically. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2006-12-04[POWERPC] cell: hard disable interrupts in power_save()Benjamin Herrenschmidt
With soft-disabled interrupts in power_save, we can still get external exceptions on Cell, even if we are in pause(0) a.k.a. sleep state. When the CPU really wakes up through the 0x100 (system reset) vector, while we have already started processing the 0x500 (external) exception, we get a panic in unrecoverable_exception() because of the lost state. This occurred in Systemsim for Cell, but as far as I can see, it can theoretically occur on any machine that uses the system reset exception to get out of sleep state. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2006-10-25[POWERPC] cell: use ppc_md->power_save instead of cbe_idle_looparnd@arndb.de
This moves the cell idle function to use the default cpu_idle with a special power_save callback, like all other platforms except iSeries already do. It also makes it possible to disable this power_save function with a new powerpc-specific boot option "powersave=off". Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-25[POWERPC] cell: update Cell BE register definitionsDavid Erb
There are a few definitions that are required by subsequent patches, so add them here. The original patch is from David Erb, but is significantly cleaned up by Kevon Corry. Cc: Kevin Corry <kevcorry@us.ibm.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-06-30Remove obsolete #include <linux/config.h>Jörn Engel
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-21[POWERPC] cell: add RAS supportBenjamin Herrenschmidt
This is a first version of support for the Cell BE "Reliability, Availability and Serviceability" features. It doesn't yet handle some of the RAS interrupts (the ones described in iic_is/iic_irr), I'm still working on a proper way to expose these. They are essentially a cascaded controller by themselves (sic !) though I may just handle them locally to the iic driver. I need also to sync with David Erb on the way he hooked in the performance monitor interrupt. So that's all for 2.6.17 and I'll do more work on that with my rework of the powerpc interrupt layer that I'm hacking on at the moment. Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-03-29[PATCH] for_each_possible_cpu: powerpcKAMEZAWA Hiroyuki
for_each_cpu() actually iterates across all possible CPUs. We've had mistakes in the past where people were using for_each_cpu() where they should have been iterating across only online or present CPUs. This is inefficient and possibly buggy. We're renaming for_each_cpu() to for_each_possible_cpu() to avoid this in the future. This patch replaces for_each_cpu with for_each_possible_cpu. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-03-27[PATCH] powerpc: use guarded ioremap for cell on-chip mappingsArnd Bergmann
I'm not sure where the information came from, but I assumed that doing cache-inhibited mappings for mmio regions was sufficient. It seems we also need the guarded bit set, like everyone else, which is the default for ioremap. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-01-12[PATCH] powerpc: cell namespace cleanupArnd Bergmann
These symbols are only used in the file that they are defined in, so they should not be in the global namespace. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-01-09[PATCH] cell: enable pause(0) in cpu_idleArnd Bergmann
This patch enables support for pause(0) power management state for the Cell Broadband Processor, which is import for power efficient operation. The pervasive infrastructure will in the future enable us to introduce more functionality specific to the Cell's pervasive unit. From: Maximino Aguilar <maguilar@us.ibm.com> Signed-off-by: Arnd Bergmann <arndb@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>