kernel.git/arch/powerpc/kernel/crash.c, branch linux-2.6.28.y

powerpc: Increase CRASH_HANDLER_MAX

2008-06-30T12:31:00Z

There are now two potential callers of machine_crash_shutdown, so increase the limit accordingly. Signed-off-by: Arnd Bergmann Signed-off-by: Paul Mackerras

[LIB]: Make PowerPC LMB code generic so sparc64 can use it too.

2008-02-14T00:56:49Z

Signed-off-by: David S. Miller

[POWERPC] kdump shutdown hook support

2008-01-25T11:52:50Z

This adds hooks into the default_machine_crash_shutdown so drivers can register a function to be run in the first kernel before we hand off to the second kernel. This should only be used in exceptional circumstances, like where the device can't be reset in the second kernel alone (as is the case with eHEA). To emphasize this, the number of handles allowed to be registered is currently #def to 1. This uses the setjmp/longjmp code around the call out to the registered hooks, so any bogus exceptions we encounter will hopefully be recoverable. Tested with bogus data and instruction exceptions. Signed-off-by: Michael Neuling Signed-off-by: Paul Mackerras

[POWERPC] Clean out a bunch of duplicate includes

2007-08-17T01:01:51Z

This removes several duplicate includes from arch/powerpc/. Signed-off-by: Jesper Juhl Acked-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras

[CELL] saving spus information for kexec crash

2007-07-20T19:41:43Z

This patch adds support for investigating spus information after a kernel crash event, through kdump vmcore file. Implementation is based on xmon code, but the new functionality was kept independent from xmon. Signed-off-by: Lucio Jose Herculano Correia Signed-off-by: Andre Detsch Signed-off-by: Arnd Bergmann

[PATCH] Kexec / Kdump: Unify elf note code

2006-12-07T16:39:46Z

The elf note saving code is currently duplicated over several architectures. This cleanup patch simply adds code to a common file and then replaces the arch-specific code with calls to the newly added code. The only drawback with this approach is that s390 doesn't fully support kexec-on-panic which for that arch leads to introduction of unused code. Signed-off-by: Magnus Damm Cc: Vivek Goyal Cc: Andi Kleen Cc: Paul Mackerras Cc: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[POWERPC] Lazy interrupt disabling for 64-bit machines

2006-10-16T06:31:36Z

This implements a lazy strategy for disabling interrupts. This means that local_irq_disable() et al. just clear the 'interrupts are enabled' flag in the paca. If an interrupt comes along, the interrupt entry code notices that interrupts are supposed to be disabled, and clears the EE bit in SRR1, clears the 'interrupts are hard-enabled' flag in the paca, and returns. This means that interrupts only actually get disabled in the processor when an interrupt comes along. When interrupts are enabled by local_irq_enable() et al., the code sets the interrupts-enabled flag in the paca, and then checks whether interrupts got hard-disabled. If so, it also sets the EE bit in the MSR to hard-enable the interrupts. This has the potential to improve performance, and also makes it easier to make a kernel that can boot on iSeries and on other 64-bit machines, since this lazy-disable strategy is very similar to the soft-disable strategy that iSeries already uses. This version renames paca->proc_enabled to paca->soft_enabled, and changes a couple of soft-disables in the kexec code to hard-disables, which should fix the crash that Michael Ellerman saw. This doesn't yet use a reserved CR field for the soft_enabled and hard_enabled flags. This applies on top of Stephen Rothwell's patches to make it possible to build a combined iSeries/other kernel. Signed-off-by: Paul Mackerras

[POWERPC] Fix interrupt clearing in kdump shutdown sequence

2006-09-13T08:31:23Z

Call chip->eoi(irq) to clear any pending interrupt in case of kdump shutdown sequence. chip->end(irq) does not serve this purpose. Signed-off-by: Mohan Kumar M Signed-off-by: Paul Mackerras

[POWERPC] Make crash.c work on 32-bit and 64-bit

2006-08-17T06:41:10Z

To compile kexec on 32-bit we need a few more bits and pieces. Rather than add empty definitions, we can make crash.c work on 32-bit, with only a couple of kludges. Signed-off-by: Michael Ellerman Signed-off-by: Paul Mackerras

Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

2006-06-29T18:32:34Z

* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (43 commits) [POWERPC] Use little-endian bit from firmware ibm,pa-features property [POWERPC] Make sure smp_processor_id works very early in boot [POWERPC] U4 DART improvements [POWERPC] todc: add support for Time-Of-Day-Clock [POWERPC] Make lparcfg.c work when both iseries and pseries are selected [POWERPC] Fix idr locking in init_new_context [POWERPC] mpc7448hpc2 (taiga) board config file [POWERPC] Add tsi108 pci and platform device data register function [POWERPC] Add general support for mpc7448hpc2 (Taiga) platform [POWERPC] Correct the MAX_CONTEXT definition powerpc: minor cleanups for mpc86xx [POWERPC] Make sure we select CONFIG_NEW_LEDS if ADB_PMU_LED is set [POWERPC] Simplify the code defining the 64-bit CPU features [POWERPC] powerpc: kconfig warning fix [POWERPC] Consolidate some of kernel/misc*.S [POWERPC] Remove unused function call_with_mmu_off [POWERPC] update asm-powerpc/time.h [POWERPC] Clean up it_lp_queue.h [POWERPC] Skip the "copy down" of the kernel if it is already at zero. [POWERPC] Add the use of the firmware soft-reset-nmi to kdump. ...