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2016-07-21powerpc: Put exception configuration in a common placeBenjamin Herrenschmidt1-0/+12
The various calls to establish exception endianness and AIL are now done from a single point using already established CPU and FW feature bits to decide what to do. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-04-10powerpc: Replace mem_init_done with slab_is_available()Michael Ellerman1-1/+0
We have a powerpc specific global called mem_init_done which is "set on boot once kmalloc can be called". But that's not *quite* true. We set it at the bottom of mem_init(), and rely on the fact that mm_init() calls kmem_cache_init() immediately after that, and nothing is running in parallel. So replace it with the generic and 100% correct slab_is_available(). Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2014-11-10powerpc: Remove bootmem allocatorAnton Blanchard1-2/+1
At the moment we transition from the memblock alloctor to the bootmem allocator. Gitting rid of the bootmem allocator removes a bunch of complicated code (most of which I owe the dubious honour of being responsible for writing). Signed-off-by: Anton Blanchard <anton@samba.org> Tested-by: Emil Medve <Emilian.Medve@Freescale.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2013-11-26powerpc: Clean up panic_timeout usageJason Baron1-0/+1
Default CONFIG_PANIC_TIMEOUT to 180 seconds on powerpc. The pSeries continue to set the timeout to 10 seconds at run-time. Thus, there's a small window where we don't have the correct value on pSeries, but if this is only run-time discoverable we don't have a better option. In any case, if the user changes the default setting of 180 seconds, we honor that user setting. Signed-off-by: Jason Baron <jbaron@akamai.com> Cc: benh@kernel.crashing.org Cc: paulus@samba.org Cc: ralf@linux-mips.org Cc: mpe@ellerman.id.au Cc: felipe.contreras@gmail.com Cc: linuxppc-dev@lists.ozlabs.org Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/705bbe0f70fb20759151642ba0176a6414ec9f7a.1385418410.git.jbaron@akamai.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-30powerpc: Move local setup.h declarations to arch includesRobert Jennings1-0/+4
Move the few declarations from arch/powerpc/kernel/setup.h into arch/powerpc/include/asm/setup.h. This resolves a sparse warning for arch/powerpc/mm/numa.c which defines do_init_bootmem() but can't include the setup.h header in the prior path. Resolves: arch/powerpc/mm/numa.c:998:13: warning: symbol 'do_init_bootmem' was not declared. Should it be static? Signed-off-by: Robert C Jennings <rcj@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-11-15powerpc: Remove stale function prototypes from setup.hAnton Blanchard1-4/+0
I noticed a couple of function prototypes for functions that no longer exist. Remove them. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-11-15powerpc: Move most of setup.h out of uapiAnton Blanchard1-0/+33
Most of setup.h should not be exported to userspace, so move it back. All we are left with is the asm-generic include to pick up the COMMAND_LINE_SIZE define. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-10-09UAPI: (Scripted) Disintegrate arch/powerpc/include/asmDavid Howells1-32/+0
Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
2012-09-07powerpc: Change memory_limit from phys_addr_t to unsigned long longSuzuki Poulose1-1/+1
There are some device-tree nodes, whose values are of type phys_addr_t. The phys_addr_t is variable sized based on the CONFIG_PHSY_T_64BIT. Change these to a fixed unsigned long long for consistency. This patch does the change only for memory_limit. The following is a list of such variables which need the change: 1) kernel_end, crashk_size - in arch/powerpc/kernel/machine_kexec.c 2) (struct resource *)crashk_res.start - We could export a local static variable from machine_kexec.c. Changing the above values might break the kexec-tools. So, I will fix kexec-tools first to handle the different sized values and then change the above. Suggested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Suzuki K. Poulose <suzuki@in.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-03-28Disintegrate asm/system.h for PowerPCDavid Howells1-1/+23
Disintegrate asm/system.h for PowerPC. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> cc: linuxppc-dev@lists.ozlabs.org
2011-07-01powerpc: Fix build problem with default ppc_md.progress commitBenjamin Herrenschmidt1-0/+2
a9c0f41b3a64955fd6f4e9d66ae1df1cbdee0cd0 breaks the build on some platforms. The extern declaration must be shielded against assembly. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-06-30powerpc: Add printk companion for ppc_md.progressDave Carroll1-0/+2
This patch adds a printk companion to replace the udbg progress function when initmem is freed. 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>
2009-08-28powerpc: derive COMMAND_LINE_SIZE from asm-genericPaul Gortmaker1-1/+1
The default COMMAND_LINE_SIZE in asm-generic is 512, so the net effect of this change is nil, aside from the cleanup factor. See also commit 2b74b8569. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-08-04powerpc: Move include files to arch/powerpc/include/asmStephen Rothwell1-0/+6
from include/asm-powerpc. This is the result of a mkdir arch/powerpc/include/asm git mv include/asm-powerpc/* arch/powerpc/include/asm Followed by a few documentation/comment fixups and a couple of places where <asm-powepc/...> was being used explicitly. Of the latter only one was outside the arch code and it is a driver only built for powerpc. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
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