- 27 4月, 2011 1 次提交
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由 Michael Ellerman 提交于
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: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 25 3月, 2011 1 次提交
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由 David Rientjes 提交于
Commit ddd588b5 ("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 here The 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: NStephen Rothwell <sfr@canb.auug.org.au> Reported-by: NJames Bottomley <James.Bottomley@hansenpartnership.com> Suggested-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NDavid Rientjes <rientjes@google.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 20 8月, 2010 1 次提交
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由 Dmitry Torokhov 提交于
Noone is using tty argument so let's get rid of it. Acked-by: NAlan Cox <alan@lxorguk.ukuu.org.uk> Acked-by: NJason Wessel <jason.wessel@windriver.com> Acked-by: NGreg Kroah-Hartman <gregkh@suse.de> Signed-off-by: NDmitry Torokhov <dtor@mail.ru>
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- 14 7月, 2010 1 次提交
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由 Benjamin Herrenschmidt 提交于
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 03 2月, 2010 1 次提交
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由 Anton Blanchard 提交于
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: NAnton Blanchard <anton@samba.org> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 24 11月, 2009 1 次提交
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由 Gautham R Shenoy 提交于
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: NGautham R Shenoy <ego@in.ibm.com> Signed-off-by: NArun R Bharadwaj <arun@linux.vnet.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 27 10月, 2009 1 次提交
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由 Josh Boyer 提交于
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: NJosh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 24 9月, 2009 1 次提交
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由 Josh Boyer 提交于
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: NJosh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 20 8月, 2009 1 次提交
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由 Benjamin Herrenschmidt 提交于
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: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 09 6月, 2009 1 次提交
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由 Stephen Rothwell 提交于
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: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 21 5月, 2009 1 次提交
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由 Vinay Sridhar 提交于
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, Vinay Signed-off-by: Michael Ellerman <michael at ellerman.id.au> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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- 23 12月, 2008 1 次提交
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由 Anton Vorontsov 提交于
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: NAnton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 31 10月, 2008 1 次提交
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由 Paul Mackerras 提交于
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 2 Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 16 6月, 2008 1 次提交
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由 Luke Browning 提交于
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: NLuke Browning <lukebrowning@us.ibm.com> Signed-off-by: NJeremy Kerr <jk@ozlabs.org>
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- 14 5月, 2008 2 次提交
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由 Michael Ellerman 提交于
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: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Ellerman 提交于
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: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 05 5月, 2008 1 次提交
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由 Luke Browning 提交于
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: NLuke Browning <lukebr@linux.vnet.ibm.com> Signed-off-by: NJeremy Kerr <jk@ozlabs.org>
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- 18 4月, 2008 1 次提交
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由 Benjamin Herrenschmidt 提交于
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: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 15 4月, 2008 1 次提交
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由 Stephen Rothwell 提交于
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.c Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 25 1月, 2008 1 次提交
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由 Michael Neuling 提交于
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: NMichael Neuling <mikey@neuling.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 11 12月, 2007 2 次提交
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由 will schmidt 提交于
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:100 sample 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:100 Tested on power5 and power6. Signed-Off-By: NWill Schmidt <will_schmidt@vnet.ibm.com> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Michael Neuling 提交于
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: NMichael Neuling <mikey@neuling.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 03 12月, 2007 1 次提交
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由 Benjamin Herrenschmidt 提交于
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: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 22 7月, 2007 1 次提交
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由 Ishizaki Kou 提交于
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: NKou Ishizaki <kou.ishizaki@toshiba.co.jp> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 10 7月, 2007 1 次提交
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由 Olaf Hering 提交于
xmon_early and xmon_off are only used in this file. Signed-off-by: NOlaf Hering <olaf@aepfle.de> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 09 5月, 2007 1 次提交
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由 Alexey Dobriyan 提交于
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: NAlexey Dobriyan <adobriyan@sw.ru> Cc: Rusty Russell <rusty@rustcorp.com.au> Acked-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 27 4月, 2007 1 次提交
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由 Anton Blanchard 提交于
Whenever we enter xmon we get a WARN_ON out of the rtas code since it thinks interrupts are still on: Unable to handle kernel paging request for data at address 0x00000000 Faulting instruction address: 0xd000000000080008 cpu 0x3: Vector: 300 (Data Access) at [c0000000075dba00] pc: d000000000080008: .doit+0x8/0x40 [oopser] lr: c000000000077704: .sys_init_module+0x1664/0x1824 sp: c0000000075dbc80 msr: 9000000000009032 dar: 0 dsisr: 42000000 current = 0xc000000003fa64b0 paca = 0xc000000000694280 pid = 2260, comm = insmod ------------[ cut here ]------------ Badness at arch/powerpc/kernel/entry_64.S:651 Call Trace: [C0000000075DAE70] [C00000000000EB64] .show_stack+0x68/0x1b0 (unreliable) [C0000000075DAF10] [C000000000216254] .report_bug+0x94/0xe8 [C0000000075DAFA0] [C00000000047B140] __kprobes_text_start+0x178/0x584 [C0000000075DB040] [C0000000000044F4] program_check_common+0xf4/0x100 Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 09 3月, 2007 1 次提交
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由 Stephen Rothwell 提交于
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 08 3月, 2007 1 次提交
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由 Michael Ellerman 提交于
My patch to add spu disassembly (af89fb80) removed a newline from the xmon help that it shouldn't have, put it back. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 14 2月, 2007 1 次提交
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由 Christoph Hellwig 提交于
It doesn't make any sense to have a priority field in the physical spu structure. Move it into the spu context instead. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
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- 11 12月, 2006 1 次提交
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由 Jeremy Fitzhardinge 提交于
This makes powerpc use the generic BUG machinery. The biggest reports the function name, since it is redundant with kallsyms, and not needed in general. There is an overall reduction of code, since module_32/64 duplicated several functions. Unfortunately there's no way to tell gcc that BUG won't return, so the BUG macro includes a goto loop. This will generate a real jmp instruction, which is never used. [akpm@osdl.org: build fix] [paulus@samba.org: remove infinite loop in BUG_ON] Signed-off-by: NJeremy Fitzhardinge <jeremy@goop.org> Cc: Andi Kleen <ak@muc.de> Cc: Hugh Dickens <hugh@veritas.com> Cc: Michael Ellerman <michael@ellerman.id.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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- 04 12月, 2006 9 次提交
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由 Stephen Rothwell 提交于
xmon still does not run on iSeries, but this allows us to build a combined kernel that includes it. Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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由 Arnd Bergmann 提交于
It may be desireable to build a kernel for cell without spufs, e.g. as the initial kboot kernel. This requires that the SPU specific parts of the core dump and the xmon code depend on CONFIG_SPU_BASE instead of CONFIG_PPC_CELL. Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
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由 Michael Ellerman 提交于
This fixes the xmon support for the cell spu to be compatable with the split spu platform code. Signed-off-by: NGeoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
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由 Michael Ellerman 提交于
While adding spu disassembly support it struck me that we're actually carrying quite a lot of code around, just to do disassembly in the case of a crash. While on large systems it's not an issue, on smaller ones it might be nice to have xmon - but without the weight of the disassembly support. For a Cell build this saves ~230KB (!), and for pSeries ~195KB. We still support the 'di' and 'sdi' commands, however they just dump the instruction in hex. Move the definitions into a header to clean xmon.c just a tiny bit. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
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由 Michael Ellerman 提交于
This patch adds a "sdi" command to xmon, to disassemble the contents of an spu's local store. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
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由 Michael Ellerman 提交于
In order to do disassembly of spu binaries in xmon, we need to abstract the disassembly function from ppc_inst_dump. We do this by making the actual disassembly function a function pointer that we pass to ppc_inst_dump(). To save updating all the callers, we turn ppc_inst_dump() into generic_inst_dump() and make ppc_inst_dump() a wrapper which always uses print_insn_powerpc(). Currently we pass the dialect into print_insn_powerpc(), but we always pass 0 - so just make it a local. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
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由 Michael Ellerman 提交于
Add a command to xmon to dump the memory of a spu's local store. This mimics the 'd' command which dumps regular memory, but does a little hand holding by taking the user supplied address and finding that offset in the local store for the specified spu. This makes it easy for example to look at what was executing on a spu: 1:mon> ss ... Stopped spu 04 (was running) ... 1:mon> sf 4 Dumping spu fields at address c0000000019e0a00: ... problem->spu_npc_RW = 0x228 ... 1:mon> sd 4 0x228 d000080080318228 01a00c021cffc408 4020007f217ff488 |........@ ..!...| Aha, 01a00c02, which is of course rdch $2,$ch24 ! -- Updated to only do the setjmp goo around the spu access, and not around prdump because it does its own (via mread). Also the num variable is now common between sf and sd, so you don't have to keep typing the spu number in if you're repeating commands on the same spu. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
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由 Michael Ellerman 提交于
After stopping spus in xmon I often find myself trawling through the field dumps to find out which spus were running. The spu stopping code actually knows what's running, so let's print it out to save the user some futzing. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
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由 Michael Ellerman 提交于
My patch to add spu helpers to xmon (a8984970) introduced a few sparse warnings, because I was dereferencing an __iomem pointer. I think the best way to handle it is to actually use the appropriate in_beXX functions. Need to rejigger the DUMP macro a little to accomodate that. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NArnd Bergmann <arnd.bergmann@de.ibm.com>
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