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2008-08-20powerpc: Replace __FUNCTION__ with __func__Harvey Harrison1-4/+4
__FUNCTION__ is gcc-specific, use __func__ [akpm@linux-foundation.org: coding-style fixes] 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>
2008-08-18powerpc: Add CMO enabled flag and paging space data to lparcfgRobert Jennings1-0/+5
Add a field in lparcfg output to indicate whether the kernel is running on a dedicated or shared memory lpar. Added fields to show the paging space pool IDs and the CMO page size. Submitted-by: Robert Jennings <rcj@linux.vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-07-30powerpc: Allow non-hcall return values for lparcfg writesNathan Fontenot1-4/+0
The code to handle writes to /proc/ppc64/lparcfg incorrectly assumes that the return code from the helper routines to update processor or memory entitlement return a hcall return value. It then assumes any non-hcall return value is bad and sets the return code for the write to be -EIO. The update_[mp]pp routines can return values other than a hcall return value. This patch removes the automatic setting of any return code that is not an hcall return value from these routines to -EIO. Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-07-25powerpc/pseries: Remove kmalloc call in handling writes to lparcfgNathan Fontenot1-16/+12
There are only 4 valid name=value pairs for writes to /proc/ppc64/lparcfg. Current code allocates a buffer to copy this information in from the user. Since the longest name=value pair will easily fit into a buffer of 64 characters, simply put the buffer on the stack instead of allocating the buffer. Signed-off-by: Nathan Fotenot <nfont@austin.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-07-25powerpc/pseries: Verify CMO memory entitlement updates with virtual I/ONathan Fontenot1-0/+10
Verify memory entitlement updates can be handled by vio. Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com> Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-07-25powerpc/pseries: Add CMO paging statisticsBrian King1-0/+20
With the addition of Cooperative Memory Overcommitment (CMO) support for IBM Power Systems, two fields have been added to the VPA to report paging statistics. Add support in lparcfg to report them to userspace. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-07-25powerpc/pseries: Split retrieval of processor entitlement data into a helper routineRobert Jennings1-35/+46
Split the retrieval of processor entitlement data returned in the H_GET_PPP hcall into its own helper routine. Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com> Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-07-25powerpc/pseries: Add memory entitlement capabilities to /proc/ppc64/lparcfgNathan Fontenot1-1/+120
Update /proc/ppc64/lparcfg to display Cooperative Memory Overcommitment statistics as reported by the H_GET_MPP hcall. This also updates the lparcfg interface to allow setting memory entitlement and weight. Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com> Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-07-25powerpc/pseries: Split processor entitlement retrieval and gathering to helper routinesNathan Fotenot1-78/+88
Split the retrieval and setting of processor entitlement and weight into helper routines. This also removes the printing of the raw values returned from h_get_ppp, the values are already parsed and printed. Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com> Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-07-25powerpc/pseries: Remove extraneous error reporting for hcall failures in lparcfgNathan Fontenot1-32/+0
Remove the extraneous error reporting used when a hcall made from lparcfg fails. Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com> Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-05-14[POWERPC] Fix sparse warnings in arch/powerpc/kernelMichael Ellerman1-3/+3
Make a few things static in lparcfg.c Make init and exit routines static in rtas_flash.c Make things static in rtas_pci.c Make some functions static in rtas.c Make fops static in rtas-proc.c Remove unneeded extern for do_gtod in smp.c Make clocksource_init() static in time.c Make last_tick_len and ticklen_to_xs static in time.c Move the declaration of the pvr per-cpu into smp.h Make kexec_smp_down() and kexec_stack static in machine_kexec_64.c Don't return void in arch_teardown_msi_irqs() in msi.c Move declaration of GregorianDay()into asm/time.h Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-29powerpc: use non-racy method for proc entries creationDenis V. Lunev1-4/+2
Use proc_create()/proc_create_data() to make sure that ->proc_fops and ->data be setup before gluing PDE to main tree. Add correct ->owner to proc_fops to fix reading/module unloading race. Signed-off-by: Denis V. Lunev <den@openvz.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-01[POWERPC] Replace remaining __FUNCTION__ occurrencesHarvey Harrison1-6/+6
__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>
2007-12-11[POWERPC] lparcfg: Remove useless buffer allocationNathan Lynch1-11/+1
The 'data' member of proc_ppc64_lparcfg is unused, but the lparcfg module's init routine allocates 4K for it. Remove the code which allocates and frees this buffer. Signed-off-by: Nathan Lynch <ntl@pobox.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-03[POWERPC] ppc64: support CONFIG_DEBUG_PREEMPTHugh Dickins1-1/+1
Add CONFIG_DEBUG_PREEMPT support to ppc64: it was useful for testing get_paca() preemption. Cheat a little, just use debug_smp_processor_id() in the debug version of get_paca(): it contains all the right checks and reporting, though get_paca() doesn't really use smp_processor_id(). Use local_paca for what might have been called __raw_get_paca(). Silence harmless warnings from io.h and lparcfg.c with local_paca - it is okay for iseries_lparcfg_data to be referencing shared_proc with preemption enabled: all cpus should show the same value for shared_proc. Why do other architectures need TRACE_IRQFLAGS_SUPPORT for DEBUG_PREEMPT? I don't know, ppc64 appears to get along fine without it. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-19some kmalloc/memset ->kzalloc (tree wide)Yoann Padioleau1-2/+1
Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc). Here is a short excerpt of the semantic patch performing this transformation: @@ type T2; expression x; identifier f,fld; expression E; expression E1,E2; expression e1,e2,e3,y; statement S; @@ x = - kmalloc + kzalloc (E1,E2) ... when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\) - memset((T2)x,0,E1); @@ expression E1,E2,E3; @@ - kzalloc(E1 * E2,E3) + kcalloc(E1,E2,E3) [akpm@linux-foundation.org: get kcalloc args the right way around] Signed-off-by: Yoann Padioleau <padator@wanadoo.fr> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Acked-by: Russell King <rmk@arm.linux.org.uk> Cc: Bryan Wu <bryan.wu@analog.com> Acked-by: Jiri Slaby <jirislaby@gmail.com> Cc: Dave Airlie <airlied@linux.ie> Acked-by: Roland Dreier <rolandd@cisco.com> Cc: Jiri Kosina <jkosina@suse.cz> Acked-by: Dmitry Torokhov <dtor@mail.ru> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org> Acked-by: Pierre Ossman <drzeus-list@drzeus.cx> Cc: Jeff Garzik <jeff@garzik.org> Cc: "David S. Miller" <davem@davemloft.net> Acked-by: Greg KH <greg@kroah.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-04-27[POWERPC] Replace if-then-else with a switch statementWill Schmidt1-21/+22
Convert a compound if-else blob to a switch statement. This better fits the kernel coding style. Signed-off-by: Will Schmidt <will_schmidt@vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-04-24[POWERPC] Remove old interface find_path_deviceStephen Rothwell1-2/+4
Replaced by of_find_node_by_path. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-04-13[POWERPC] Rename get_property to of_get_property: arch/powerpcStephen Rothwell1-4/+5
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-12[PATCH] mark struct file_operations const 2Arjan van de Ven1-1/+1
Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. [akpm@osdl.org: sparc64 fix] Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-08[POWERPC] Fix ppc64's writing to struct file_operationsStephen Rothwell1-4/+7
In preparation for marking file_operations as const. Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-08-01[POWERPC] clean up pseries hcall interfacesAnton Blanchard1-4/+14
Our pseries hcall interfaces are out of control: plpar_hcall_norets plpar_hcall plpar_hcall_8arg_2ret plpar_hcall_4out plpar_hcall_7arg_7ret plpar_hcall_9arg_9ret Create 3 interfaces to cover all cases: plpar_hcall_norets: 7 arguments no returns plpar_hcall: 6 arguments 4 returns plpar_hcall9: 9 arguments 9 returns There are only 2 cases in the kernel that need plpar_hcall9, hopefully we can keep it that way. Pass in a buffer to stash return parameters so we avoid the &dummy1, &dummy2 madness. Signed-off-by: Anton Blanchard <anton@samba.org> -- Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-07-31[POWERPC] Constify & voidify get_property()Jeremy Kerr1-6/+5
Now that get_property() returns a void *, there's no need to cast its return value. Also, treat the return value as const, so we can constify get_property later. powerpc core changes. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-07-13[POWERPC] iseries: Make ItExtVpdPanel private to iSeriesMichael Ellerman1-1/+0
No one outside platforms/iseries needs ItExtVpdPanel anymore, so move it in there. It used to be needed by lparcfg, and so was exported, but isn't needed anymore, so unexport it. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2006-06-30Remove obsolete #include <linux/config.h>Jörn Engel1-1/+0
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-29[POWERPC] Make lparcfg.c work when both iseries and pseries are selectedStephen Rothwell1-71/+76
This also consolidates the initial bits of lparcfg_data() and adds the partition number to the iSeries flattened device tree. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-05-19[PATCH] powerpc: udbg_printf() formatting attributejimix@watson.ibm.com1-2/+2
This patch allows the compiler to catch any printf-like mismatches for udbg_printf(). After some brute force building I've only found issues with my own code and lparcfg.c It could break some developers, but IMHO that would be goodness. Signed-off-by: Jimi Xenidis <jimix@watson.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-04-01[PATCH] powerpc/pseries: misc lparcfg fixesWill Schmidt1-4/+5
This fixes several problems with the lparcfg code. In case someone gets a sense of deja-vu, part of this was submitted last Sep, I thought the changes went in, but either got backed out, or just got lost. First, change the local_buffer declaration to be unsigned char *. We had a bad-math problem in a 2.4 tree which was built with a "-fsigned-char" parm. I dont believe we ever build with that parm now-a-days, but to be safe, I'd prefer the declaration be explicit. Second, fix a bad math calculation for splpar_strlen. Third, on the rtas_call for get-system-parameter, pass in RTAS_DATA_BUF_SIZE for the rtas_data_buf size, instead of letting random data determine the size. Until recently, we've had a sufficiently large 'random data' value get passed in, so the function just happens to have worked OK. Now it's getting passed a '0', which causes the rtas_call to return success, but no data shows up in the buffer. (oops!). This was found by the LTC test org. This is in a branch of code that only gets run on SPLPAR systems. Tested on power5 Lpar. Signed-off-by: Will Schmidt <willschm@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-04-01[PATCH] powerpc/pseries: Change H_StudlyCaps to H_SHOUTING_CAPSSegher Boessenkool1-11/+11
Also cleans up some nearby whitespace problems. Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-03-29[PATCH] for_each_possible_cpu: powerpcKAMEZAWA Hiroyuki1-2/+2
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>
2006-02-20[PATCH] powerpc: Fix OOPS in lparcfg on G5Olof Johansson1-2/+4
Fallback gracefully when reading /proc/ppc64/lparcfg when the /rtas device node can't be found. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-01-13[PATCH] powerpc: Remove lppaca structure from the PACADavid Gibson1-8/+5
At present the lppaca - the structure shared with the iSeries hypervisor and phyp - is contained within the PACA, our own low-level per-cpu structure. This doesn't have to be so, the patch below removes it, making a separate array of lppaca structures. This saves approximately 500*NR_CPUS bytes of image size and kernel memory, because we don't need aligning gap between the Linux and hypervisor portions of every PACA. On the other hand it means an extra level of dereference in many accesses to the lppaca. The patch also gets rid of several places where we assign the paca address to a local variable for no particular reason. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-14powerpc: iSeries build fixesStephen Rothwell1-26/+25
log_plpar_hcall_return is only used on PPC_PSERIES, so move it closer to its users and inside ifdef CONFIG_PPC_PSERIES. remove the last vestiges of systemcfg in iSeries. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-11-11powerpc: Fix some compile problems with the VDSO stuffPaul Mackerras1-2/+2
We needed the VDSO symbols in the arch/ppc asm-offsets.c, and there were a few usages of _systemcfg still left lying around. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-11[PATCH] ppc64: Quieten lparcfgAnton Blanchard1-11/+8
If we dont have permission to read some information from the hypervisor, lparcfg outputs a warning on the console. Now that lparcfg is world readable this is a problem. Dont warn in the case of H_Authority, remove some unnecessary function prototypes and fix whitespace damage in a structure as well. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-10[PATCH] powerpc: Move more ppc64 files with no ppc32 equivalent to powerpcDavid Gibson1-0/+612
This patch moves a bunch more files from arch/ppc64 and include/asm-ppc64 which have no equivalents in ppc32 code into arch/powerpc and include/asm-powerpc. The file affected are: hvcall.h proc_ppc64.c sysfs.c lparcfg.c rtas_pci.c The only changes apart from the move and corresponding Makefile changes are: - #ifndef/#define in includes updated to _ASM_POWERPC_ form - trailing whitespace removed - comments giving full paths removed Built and booted on POWER5 LPAR (ARCH=powerpc and ARCH=ppc64), built for 32-bit powermac (ARCH=powerpc). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
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