25 Nov, 2011
2 commits
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Sorry, there was a typo in the #if
signed-off-by: Jimi Xenidis
Signed-off-by: Benjamin Herrenschmidt
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The 'u' command will print the TLB on book3e parts and the SLB on
Book3s parts, but the help system doesn't say that correctly.Signed-off-by: Jimi Xenidis
Signed-off-by: Benjamin Herrenschmidt
07 Nov, 2011
1 commit
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* 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits)
Revert "tracing: Include module.h in define_trace.h"
irq: don't put module.h into irq.h for tracking irqgen modules.
bluetooth: macroize two small inlines to avoid module.h
ip_vs.h: fix implicit use of module_get/module_put from module.h
nf_conntrack.h: fix up fallout from implicit moduleparam.h presence
include: replace linux/module.h with "struct module" wherever possible
include: convert various register fcns to macros to avoid include chaining
crypto.h: remove unused crypto_tfm_alg_modname() inline
uwb.h: fix implicit use of asm/page.h for PAGE_SIZE
pm_runtime.h: explicitly requires notifier.h
linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h
miscdevice.h: fix up implicit use of lists and types
stop_machine.h: fix implicit use of smp.h for smp_processor_id
of: fix implicit use of errno.h in include/linux/of.h
of_platform.h: delete needless include
acpi: remove module.h include from platform/aclinux.h
miscdevice.h: delete unnecessary inclusion of module.h
device_cgroup.h: delete needless include
net: sch_generic remove redundant use of
net: inet_timewait_sock doesnt need
...Fix up trivial conflicts (other header files, and removal of the ab3550 mfd driver) in
- drivers/media/dvb/frontends/dibx000_common.c
- drivers/media/video/{mt9m111.c,ov6650.c}
- drivers/mfd/ab3550-core.c
- include/linux/dmaengine.h
01 Nov, 2011
1 commit
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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
29 Sep, 2011
1 commit
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Based on patch by David Gibson
xmon has a longstanding bug on systems which are SMP-capable but lack
the MSR[RI] bit. In these cases, xmon invoked by IPI on secondary
CPUs will not properly keep quiet, but will print stuff, thereby
garbling the primary xmon's output. This patch fixes it, by ignoring
the RI bit if the processor does not support it.There's already a version of this for 4xx upstream, which we'll need
to extend to other RI-lacking CPUs at some point. For now this adds
Book3e processors to the mix.Signed-off-by: Jimi Xenidis
Signed-off-by: Benjamin Herrenschmidt
19 May, 2011
1 commit
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The only user of MSG_ALL_BUT_SELF in the whole kernel tree is powerpc,
and it only uses it to start the debugger. Both debuggers always call
smp_send_debugger_break with MSG_ALL_BUT_SELF, and only mpic can do
anything more optimal than a loop over all online cpus, but all message
passing implementations have to code for this special delivery target.Convert smp_send_debugger_break to take void and loop calling the smp_ops
message_pass function for each of the other cpus in the online cpumask.Use raw_smp_processor_id() because we are either entering the debugger
or trying to start kdump and the additional warning it not useful were
it to trigger.Signed-off-by: Milton Miller
Signed-off-by: Benjamin Herrenschmidt
04 May, 2011
2 commits
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Adapt new API.
Almost change is trivial. Most important change is the below line
because we plan to change task->cpus_allowed implementation.- ctx->cpus_allowed = current->cpus_allowed;
Signed-off-by: KOSAKI Motohiro
Signed-off-by: Benjamin Herrenschmidt -
Recent 64-bit server processors (POWER6 and POWER7) have a "Come-From
Address Register" (CFAR), that records the address of the most recent
branch or rfid (return from interrupt) instruction for debugging purposes.This saves the value of the CFAR in the exception entry code and stores
it in the exception frame. We also make xmon print the CFAR value in
its register dump code.Rather than extend the pt_regs struct at this time, we steal the orig_gpr3
field, which is only used for system calls, and use it for the CFAR value
for all exceptions/interrupts other than system calls. This means we
don't save the CFAR on system calls, which is not a great problem since
system calls tend not to happen unexpectedly, and also avoids adding the
overhead of reading the CFAR to the system call entry path.Signed-off-by: Paul Mackerras
Signed-off-by: Benjamin Herrenschmidt
27 Apr, 2011
2 commits
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Some of the 64bit PPC CPU features are MMU-related, so this patch moves
them to MMU_FTR_ bits. All cpu_has_feature()-style tests are moved to
mmu_has_feature(), and seven feature bits are freed as a result.Signed-off-by: Matt Evans
Signed-off-by: Benjamin Herrenschmidt -
Use the new MSR_64BIT in a few places. Some of these are already ifdef'ed
for BOOKE vs BOOKS, but it's still clearer, MSR_SF does not immediately
parse as "MSR bit for 64bit".Signed-off-by: Michael Ellerman
Signed-off-by: Benjamin Herrenschmidt
25 Mar, 2011
1 commit
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Commit ddd588b5dd55 ("oom: suppress nodes that are not allowed from
meminfo on oom kill") moved lib/show_mem.o out of lib/lib.a, which
resulted in build warnings on all architectures that implement their own
versions of show_mem():lib/lib.a(show_mem.o): In function `show_mem':
show_mem.c:(.text+0x1f4): multiple definition of `show_mem'
arch/sparc/mm/built-in.o:(.text+0xd70): first defined hereThe fix is to remove __show_mem() and add its argument to show_mem() in
all implementations to prevent this breakage.Architectures that implement their own show_mem() actually don't do
anything with the argument yet, but they could be made to filter nodes
that aren't allowed in the current context in the future just like the
generic implementation.Reported-by: Stephen Rothwell
Reported-by: James Bottomley
Suggested-by: Andrew Morton
Signed-off-by: David Rientjes
Signed-off-by: Linus Torvalds
13 Oct, 2010
1 commit
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Replace EXTRA_CFLAGS with ccflags-y and EXTRA_AFLAGS with asflags-y.
Signed-off-by: matt mooney
Signed-off-by: Benjamin Herrenschmidt
20 Aug, 2010
1 commit
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Noone is using tty argument so let's get rid of it.
Acked-by: Alan Cox
Acked-by: Jason Wessel
Acked-by: Greg Kroah-Hartman
Signed-off-by: Dmitry Torokhov
14 Jul, 2010
1 commit
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Signed-off-by: Benjamin Herrenschmidt
03 Feb, 2010
1 commit
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Using perf to trace L1 dcache misses and dumping data addresses I found a few
variables taking a lot of misses. Since they are almost never written, they
should go into the __read_mostly section.Signed-off-by: Anton Blanchard
Signed-off-by: Benjamin Herrenschmidt
24 Nov, 2009
1 commit
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This patch provides an extended_cede_processor() helper function
which takes the cede latency hint as an argument. This hint is to be passed
on to the hypervisor to cede to the corresponding state on platforms
which support it.Signed-off-by: Gautham R Shenoy
Signed-off-by: Arun R Bharadwaj
Signed-off-by: Benjamin Herrenschmidt
27 Oct, 2009
1 commit
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Prior to the arch/ppc -> arch/powerpc transition, xmon had support for single
stepping on 4xx boards. The functionality was lost when arch/ppc was removed.
This patch restores single step support for 44x boards, and Book-E in general.Signed-off-by: Josh Boyer
Signed-off-by: Benjamin Herrenschmidt
24 Sep, 2009
1 commit
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The xmon code relies on MSR_RI being non-zero to indicate that an exception
is recoverable. If it is not, it prints a warning message. However, the
PowerPC 4xx cores do not have an MSR_RI bit and this warning is produced for
every xmon event.This introduces an unrecoverable_excp function to determine if an exception
is recoverable or not. This gets rid of the erroneous warnings on 4xx.Signed-off-by: Josh Boyer
Signed-off-by: Benjamin Herrenschmidt
20 Aug, 2009
2 commits
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Make it possible to enable GCOV code coverage measurement on powerpc.
Lightly tested on 64-bit, seems to work as expected.
Signed-off-by: Michael Ellerman
Signed-off-by: Benjamin Herrenschmidt -
This contains all the bits that didn't fit in previous patches :-) This
includes the actual exception handlers assembly, the changes to the
kernel entry, other misc bits and wiring it all up in Kconfig.Signed-off-by: Benjamin Herrenschmidt
16 Jun, 2009
1 commit
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Add the option to build the code under arch/powerpc with -Werror.
The intention is to make it harder for people to inadvertantly introduce
warnings in the arch/powerpc code. It needs to be configurable so that
if a warning is introduced, people can easily work around it while it's
being fixed.The option is a negative, ie. don't enable -Werror, so that it will be
turned on for allyes and allmodconfig builds.The default is n, in the hope that developers will build with -Werror,
that will probably lead to some build breaks, I am prepared to be flamed.It's not enabled for math-emu, which is a steaming pile of warnings.
Signed-off-by: Michael Ellerman
Signed-off-by: Benjamin Herrenschmidt
09 Jun, 2009
1 commit
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Gets rid of this warning:
arch/powerpc/xmon/xmon.c: In function 'dump_log_buf':
arch/powerpc/xmon/xmon.c:2133: warning: unused variable 'i'Signed-off-by: Stephen Rothwell
Signed-off-by: Benjamin Herrenschmidt
21 May, 2009
1 commit
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Hello All,
Quite a while back Michael Ellerman had posted a patch to add support to xmon to print the contents of the console log pointed to by __log_buf.
Here's the link to that patch - http://ozlabs.org/pipermail/linuxppc64-dev/2005-March/003657.html
I've ported the patch in the above link to 2.6.30-rc5 and have tested it.Thanks & regards,
VinaySigned-off-by: Michael Ellerman
Signed-off-by: Benjamin Herrenschmidt
23 Dec, 2008
1 commit
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Today the arch/powerpc/xmon/setjmp.S file contains only the
xmon_save_regs function. We want to use it for kdump purposes, so
let's move the file into arch/powerpc/kernel/ and give the function a
more generic name (ppc_save_regs).Signed-off-by: Anton Vorontsov
Signed-off-by: Paul Mackerras
31 Oct, 2008
1 commit
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This makes sure we don't try to call find_bug or is_warning_bug when
CONFIG_BUG=n and CONFIG_XMON=y. Otherwise we get these errors:arch/powerpc/xmon/xmon.c: In function ‘print_bug_trap’:
arch/powerpc/xmon/xmon.c:1364: error: implicit declaration of function ‘find_bug’
arch/powerpc/xmon/xmon.c:1364: warning: assignment makes pointer from integer without a cast
arch/powerpc/xmon/xmon.c:1367: error: implicit declaration of function ‘is_warning_bug’
arch/powerpc/xmon/xmon.c:1374: error: dereferencing pointer to incomplete type
make[2]: *** [arch/powerpc/xmon/xmon.o] Error 1
make[1]: *** [arch/powerpc/xmon] Error 2
make: *** [sub-make] Error 2Signed-off-by: Paul Mackerras
30 Jun, 2008
1 commit
16 Jun, 2008
1 commit
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According to the CBEA, the SPU dsisr is not updated for class 0
exceptions.spu_stopped() is testing the dsisr that was passed to it from the class
0 exception handler, so we return a false positive here.This patch cleans up the interrupt handler and erroneous tests in
spu_stopped. It also removes the fields from the csa since it is not
needed to process class 0 events.Signed-off-by: Luke Browning
Signed-off-by: Jeremy Kerr
14 May, 2008
2 commits
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This is a little messier than I'd like because xmon.h only exists
on powerpc and we can't have a static inline and an extern declaration
visible at the same time.Signed-off-by: Michael Ellerman
Signed-off-by: Paul Mackerras -
warning: Using plain integer as NULL pointer
warning: Using plain integer as NULL pointer
warning: symbol 'excprint' was not declared. Should it be static?
warning: symbol 'prregs' was not declared. Should it be static?
warning: symbol 'cacheflush' was not declared. Should it be static?
warning: symbol 'read_spr' was not declared. Should it be static?
warning: symbol 'write_spr' was not declared. Should it be static?
warning: symbol 'super_regs' was not declared. Should it be static?
warning: symbol 'mread' was not declared. Should it be static?
warning: symbol 'mwrite' was not declared. Should it be static?
warning: symbol 'byterev' was not declared. Should it be static?
warning: symbol 'memex' was not declared. Should it be static?
warning: symbol 'bsesc' was not declared. Should it be static?
warning: symbol 'dump' was not declared. Should it be static?
warning: symbol 'prdump' was not declared. Should it be static?
warning: symbol 'generic_inst_dump' was not declared. Should it be static?
warning: symbol 'ppc_inst_dump' was not declared. Should it be static?
warning: symbol 'memops' was not declared. Should it be static?
warning: symbol 'memdiffs' was not declared. Should it be static?
warning: symbol 'memlocate' was not declared. Should it be static?
warning: symbol 'memzcan' was not declared. Should it be static?
warning: symbol 'proccall' was not declared. Should it be static?
warning: symbol 'scannl' was not declared. Should it be static?
warning: symbol 'hexdigit' was not declared. Should it be static?
warning: symbol 'flush_input' was not declared. Should it be static?
warning: symbol 'inchar' was not declared. Should it be static?
warning: symbol 'take_input' was not declared. Should it be static?
warning: symbol 'xmon_init' was not declared. Should it be static?Signed-off-by: Michael Ellerman
Signed-off-by: Paul Mackerras
05 May, 2008
1 commit
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SPU class 0 & 1 exceptions may occur in parallel, so we may end up
overwriting csa.dsisr.This change adds dedicated fields for each class to the spu and the spu
context so that fault data is not overwritten.Signed-off-by: Luke Browning
Signed-off-by: Jeremy Kerr
18 Apr, 2008
1 commit
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This moves various definitions used all over the place to parse stack
frames to ptrace.h so only one definition is needed.Signed-off-by: Benjamin Herrenschmidt
Signed-off-by: Paul Mackerras
15 Apr, 2008
1 commit
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Now that we have the alpaca, the reg_save_ptr is no longer needed in the
paca. Eradicate all global uses of it and make it static in the iSeries
lpardata.cSigned-off-by: Stephen Rothwell
Signed-off-by: Paul Mackerras
25 Jan, 2008
1 commit
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This makes the setjmp/longjmp code used by xmon, generically available
to other code. It also removes the requirement for debugger hooks to
be only called on 0x300 (data storage) exception.Signed-off-by: Michael Neuling
Signed-off-by: Paul Mackerras
11 Dec, 2007
2 commits
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This adds a bit more detail to the xmon SLB output. When the valid
bit is set, this displays the ESID and VSID values, as well as
decoding the segment size -- 1T or 256M -- and displaying the LLP
bits. This supresses the output for any slb entries that contain only
zeros.sample output from power6 (1T segment support):
00 c000000008000000 40004f7ca3000500 1T ESID= c00000 VSID= 4f7ca3 LLP:100
01 d000000008000000 4000eb71b0000400 1T ESID= d00000 VSID= eb71b0 LLP: 0
08 0000000018000000 0000c8499f8ccc80 256M ESID= 1 VSID= c8499f8cc LLP: 0
09 00000000f8000000 0000d2c1a8e46c80 256M ESID= f VSID= d2c1a8e46 LLP: 0
10 0000000048000000 0000ca87eab1dc80 256M ESID= 4 VSID= ca87eab1d LLP: 0
43 cf00000008000000 400011b260000500 1T ESID= cf0000 VSID= 11b260 LLP:100sample output from power5 (notice the non-valid but non-zero entries)
10 0000000008000000 00004fd0e077ac80 256M ESID= 0 VSID= 4fd0e077a LLP: 0
11 00000000f8000000 00005b085830fc80 256M ESID= f VSID= 5b085830f LLP: 0
12 0000000048000000 000052ce99fe6c80 256M ESID= 4 VSID= 52ce99fe6 LLP: 0
13 0000000018000000 000050904ed95c80 256M ESID= 1 VSID= 50904ed95 LLP: 0
14 cf00000008000000 0000d59aca40f500 256M ESID=cf0000000 VSID= d59aca40f LLP:100
15 c000000078000000 000045cb97751500 256M ESID=c00000007 VSID= 45cb97751 LLP:100Tested on power5 and power6.
Signed-Off-By: Will Schmidt
Signed-off-by: Paul Mackerras
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Currently we hardwire the number of SLBs to 64, but PAPR says we
should use the ibm,slb-size property to obtain the number of SLB
entries. This uses this property instead of assuming 64. If no
property is found, we assume 64 entries as before.This soft patches the SLB handler, so it shouldn't change performance
at all.Signed-off-by: Michael Neuling
Signed-off-by: Paul Mackerras
03 Dec, 2007
1 commit
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This adds a function to xmon to dump the content of the 44x processor
TLB with a little bit of decoding (but not much).Signed-off-by: Benjamin Herrenschmidt
Signed-off-by: Paul Mackerras
22 Jul, 2007
2 commits
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In some configuration, xmon help string is larger than xmon_printf
buffer. We need not to use printf. This patch adds xmon_puts and
change to use it to show help string.Signed-off-by: Kou Ishizaki
Signed-off-by: Paul Mackerras -
Because xmon_write doesn't change the buffer, we should add 'const'
qualifier to the argument which points it.Signed-off-by: Kou Ishizaki
Signed-off-by: Paul Mackerras
10 Jul, 2007
1 commit
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xmon_early and xmon_off are only used in this file.
Signed-off-by: Olaf Hering
Signed-off-by: Paul Mackerras
09 May, 2007
1 commit
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Several kallsyms_lookup() pass dummy arguments but only need, say, module's
name. Make kallsyms_lookup() accept NULLs where possible.Also, makes picture clearer about what interfaces are needed for all symbol
resolving business.Signed-off-by: Alexey Dobriyan
Cc: Rusty Russell
Acked-by: Ingo Molnar
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
