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2006-12-04Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] Cleanup memory barriers for weakly ordered systems. [MIPS] Alchemy: Automatically enable CONFIG_RESOURCES_64BIT for PCI configs. [MIPS] Unify csum_partial.S [MIPS] SWARM: Fix a typo in #error directives [MIPS] Fix atomic.h build errors. [MIPS] Use SYSVIPC_COMPAT to fix various problems on N32 [MIPS] klconfig add missing bracket
2006-12-04Merge master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpcLinus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc: (194 commits) [POWERPC] Add missing EXPORTS for mpc52xx support [POWERPC] Remove obsolete PPC_52xx and update CLASSIC32 comment [POWERPC] ps3: add a default zImage target [POWERPC] Add of_platform_bus support to mpc52xx psc uart driver [POWERPC] typo fix and whitespace cleanup on mpc52xx-uart driver [POWERPC] Fix debug printks for 32-bit resources in the PCI code [POWERPC] Replace kmalloc+memset with kzalloc [POWERPC] Linkstation / kurobox support [POWERPC] Add the e300c3 core to the CPU table. [POWERPC] ppc: m48t35 add missing bracket [POWERPC] iSeries: don't build head_64.o unnecessarily [POWERPC] iSeries: stop dt_mod.o being rebuilt unnecessarily [POWERPC] Fix cputable.h for combined build [POWERPC] Allow CONFIG_BOOTX_TEXT on iSeries [POWERPC] Allow xmon to build on legacy iSeries [POWERPC] Change ppc64_defconfig to use AUTOFS_V4 not V3 [POWERPC] Tell firmware we can handle POWER6 compatible mode [POWERPC] Clean images in arch/powerpc/boot [POWERPC] Fix OF pci flags parsing [POWERPC] defconfig for lite5200 board ...
2006-12-04[MIPS] Cleanup memory barriers for weakly ordered systems.Ralf Baechle
Also the R4000 / R4600 LL/SC instructions imply a sync so no explicit sync needed. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-12-04[MIPS] Fix atomic.h build errors.Ralf Baechle
For the definition of atomic64_t atomic.h was relying on <asm/types.h> having been included previously. Before changeset d89d8e0637a5e4e0a12e90c4bc934d0d4c335239 this was happening as a side effect of including <linux/spinlock.h>. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-12-04[MIPS] Use SYSVIPC_COMPAT to fix various problems on N32Atsushi Nemoto
N32 SysV IPC system calls should use 32-bit compatible code. arch/mips/kernel/linux32.c have similar compatible code for O32, but ipc/compat.c seems more complete. We can use it for both N32 and O32. This patch should fix these problems (and other possible problems): http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=1149188824.6986.6.camel%40diimka-laptop http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=44C6B829.8050508%40caviumnetworks.com Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-12-04[MIPS] klconfig add missing bracketMariusz Kozlowski
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-12-04Merge branch 'upstream-linus' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev: (82 commits) [PATCH] pata_ali: small fixes [PATCH] pata_via: VIA 8251 bridged systems are now out and about [PATCH] trivial piix: swap bogus dot for comma space [PATCH] sata_promise: PHYMODE4 fixup [PATCH] libata: always use polling IDENTIFY [libata] pata_cs5535: fix build [PATCH] ahci: do not powerdown during initialization [PATCH] libata: prepare ata_sg_clean() for invocation from EH [PATCH] libata: separate out rw ATA taskfile building into ata_build_rw_tf() [PATCH] libata: implement ata_exec_internal_sg() [PATCH] libata: make sure IRQ is cleared after ata_bmdma_freeze() [PATCH] libata: move BMDMA host status recording from EH to interrupt handler [PATCH] libata: make sure sdev doesn't go away while rescanning [PATCH] libata: don't request sense if the port is frozen [PATCH] libata: fix READ CAPACITY simulation [PATCH] libata: implement ATA_FLAG_SETXFER_POLLING and use it in pata_via, take #2 [PATCH] libata: set IRQF_SHARED for legacy PCI IDE IRQs [PATCH] libata: remove unused HSM_ST_UNKNOWN [PATCH] libata: kill unnecessary sht->max_sectors initializations [PATCH] libata: add missing sht->slave_destroy ...
2006-12-04[PATCH] fix fallout from header dependency trimmingAl Viro
OK, that seems to be enough to deal with the mess. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-04netfilter.h needs rcuupdate.h for RCU locking functionsLinus Torvalds
This was exposed by Al's recent header file dependency reduction patches.. Cc: Al Viro <viro@ftp.linux.org.uk> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-04Merge branch 'for-linus4' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/viro/bird * 'for-linus4' of master.kernel.org:/pub/scm/linux/kernel/git/viro/bird: [PATCH] severing poll.h -> mm.h [PATCH] severing skbuff.h -> mm.h [PATCH] severing skbuff.h -> poll.h [PATCH] severing skbuff.h -> highmem.h [PATCH] severing uaccess.h -> sched.h [PATCH] severing fs.h, radix-tree.h -> sched.h [PATCH] severing module.h->sched.h
2006-12-04Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6Linus Torvalds
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: (34 commits) [S390] Don't use small stacks when lockdep is used. [S390] cio: Use device_reprobe() instead of bus_rescan_devices(). [S390] cio: Retry internal operations after vary off. [S390] cio: Use path verification for last path gone after vary off. [S390] non-unique constant/macro identifiers. [S390] Memory detection fixes. [S390] cio: Make ccw_dev_id_is_equal() more robust. [S390] Convert extmem spin_lock into a mutex. [S390] set KBUILD_IMAGE. [S390] lockdep: show held locks when showing a stackdump [S390] Add dynamic size check for usercopy functions. [S390] Use diag260 for memory size detection. [S390] pfault code cleanup. [S390] Cleanup memory_chunk array usage. [S390] Misaligned wait PSW at memory detection. [S390] cpu shutdown rework [S390] cpcmd <-> __cpcmd calling issues [S390] Bad kexec control page allocation. [S390] Reset infrastructure for re-IPL. [S390] Some documentation typos. ...
2006-12-04[PATCH] m68knommu: fix missing bracket in scatterlist.hGreg Ungerer
This patch adds missing bracket. Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-04[PATCH] m68knommu: fix dma-mapping.hGreg Ungerer
Make the m68knommu DMA handling consistent with other architectures. Compile problems pointed out by Adrian Bunk <bunk@stusta.de> Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-04[PATCH] m68knommu: memory register defines for 520x ColdFire CPU'sGreg Ungerer
Here is a small patch to automatically detect the DRAM size on m520x. It was generated against 2.6.17-uc0, and tested on an Intec 5208 dev board. (This part of the patch if the memory register defines for the 520x ColdFire CPU family - Greg). Signed-off-by: Michael Broughton <mbobowik@telusplanet.net> Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-04[S390] Memory detection fixes.Heiko Carstens
VMALLOC_END on 31bit should be 0x8000000UL instead of 0x7fffffffL. The page mask which is used to make sure memory_end is on 4MB/2MB boundary is wrong and not needed. Therefore remove it. Make sure a vmalloc area does also exist and work on (future) machines with 4TB and more memory. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-04[S390] cio: Make ccw_dev_id_is_equal() more robust.Cornelia Huck
Using memcmp to compare ccw_dev_id implies that the whole structure (incl. padding) has always been completely initialized to sane values. Comparing the structures field by field doesn't make such assumptions. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-04[S390] pfault code cleanup.Heiko Carstens
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-04[S390] Cleanup memory_chunk array usage.Heiko Carstens
Need this at yet another file and don't want to add yet another extern... Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-04[S390] cpu shutdown reworkHeiko Carstens
Let one master cpu kill all other cpus instead of sending an external interrupt to all other cpus so they can kill themselves. Simplifies reipl/shutdown functions a lot. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-04[S390] cpcmd <-> __cpcmd calling issuesHeiko Carstens
In case of reipl cpcmd gets called when all other cpus are not running anymore. To prevent deadlocks change __cpcmd so that it doesn't take any locks and call cpcmd or __cpcmd, whatever is correct in the current context. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-04[S390] Bad kexec control page allocation.Heiko Carstens
KEXEC_CONTROL_MEMORY_LIMIT is an unsigned long value and therefore should be defined as one. Otherwise the kexec control page can be allocated above 2GB which will cause a specification exception on the sam31 instruction in the s390 kexec relocation code. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-04[S390] Reset infrastructure for re-IPL.Heiko Carstens
In case of re-IPL and diag308 doesn't work we have to reset all devices manually and wait synchronously that each reset finished. This patch adds the necessary infrastucture and the first exploiter of it. Subsystems that need to add a function that needs to be called at re-IPL may register/unregister this function via struct reset_call { struct reset_call *next; void (*fn)(void); }; void register_reset_call(struct reset_call *reset); void unregister_reset_call(struct reset_call *reset); When the registered function get called the context is: - all cpus beside the current one are stopped - all machine checks and interrupts are disabled - prefixing is disabled - a default machine check handler is available for use The registered functions may not take any locks are sleep. For the common I/O layer part of this patch: Introduce a reset_call css_reset that does the following: - clear all subchannels - perform a rchp on all channel paths and wait for the resulting machine checks This replaces the calls to clear_all_subchannels() and cio_reset_channel_paths() for kexec and ccw reipl. reipl_ccw_dev() now uses reipl_find_schid() to determine the subchannel id for a given device id. Also remove cio_reset_channel_paths() and friends since they are not needed anymore. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-04[S390] termio <-> termios conversion error handling.Heiko Carstens
Get rid of our own user_termio_to_kernel_termios() and kernel_termios_to_user_termio() macros which didn't check for errors on user space accesses. Instead use the generic functions which handle this properly. In addition the generic version of user_termio_to_kernel_termios() also copies the c_line member which was missing in our variant. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-04[S390] update interface notes in zcrypt.hRalph Wuerthner
Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-04[S390] Add __must_check to uaccess functions.Heiko Carstens
Follow other architectures and add __must_check to uaccess functions. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-12-04[POWERPC] ppc: m48t35 add missing bracketMariusz Kozlowski
Add missing bracket in definition for m48t35 RTC chip. Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-04[POWERPC] Fix cputable.h for combined buildStephen Rothwell
Remove CPU_FTR_16M_PAGE from the cupfeatures mask at runtime on iSeries. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-04[POWERPC] Add common routines for 52xx support in arch/powerpcGrant Likely
Adds utility routines used by 52xx device drivers and board support code. Main functionality is to add device nodes to the of_platform_bus, retrieve the IPB bus frequency, and find+ioremap device registers. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Sylvain Munaut <tnt@246tNt.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-04[POWERPC] Separate IRQ config / register set from main headerSylvain Munaut
There is no need to expose these settings outside the scope of the interrupt controller code itself. Signed-off-by: Sylvain Munaut <tnt@246tNt.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-04[POWERPC] Provide dummy hard_irq_enable/disable() for PPC32Michael Ellerman
To allow arch/powerpc/kernel/crash.c to build on 32-bit we need a definition of hard_irq_disable(). 32-bit doesn't support the lazy interrupt disabling mechanism, so on 32-bit hard_irq_disable() is simply local_irq_disable(). Add a definition for hard_irq_enable() just for completeness. This allows (KEXEC=y && PPC32=y) to build again. Broken since d04c56f73c30a5e593202ecfcf25ed43d42363a2. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-04[POWERPC] include/asm-powerpc/: "extern inline" -> "static inline"Adrian Bunk
"extern inline" generates a warning with -Wmissing-prototypes and I'm currently working on getting the kernel cleaned up for adding this to the CFLAGS since it will help us to avoid a nasty class of runtime errors. If there are places that really need a forced inline, __always_inline would be the correct solution. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-04[POWERPC] fix building without PCIArnd Bergmann
At least the ide driver calls pcibus_to_node, which is not defined when CONFIG_PCI is disabled. This adds a nop function for the !PCI case. Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2006-12-04[POWERPC] ps3: multiplatform build fixesArnd Bergmann
A few code paths need to check whether or not they are running on the PS3's LV1 hypervisor before making hcalls. This introduces a new firmware feature bit for this, FW_FEATURE_PS3_LV1. Now when both PS3 and IBM_CELL_BLADE are enabled, but not PSERIES, FW_FEATURE_PS3_LV1 and FW_FEATURE_LPAR get enabled at compile time, which is a bug. The same problem can also happen for (PPC_ISERIES && !PPC_PSERIES && PPC_SOMETHING_ELSE). In order to solve this, I introduce a new CONFIG_PPC_NATIVE option that is set when at least one platform is selected that can run without a hypervisor and then turns the firmware feature check into a run-time option. The new cell oprofile support that was recently merged does not work on hypervisor based platforms like the PS3, therefore make it depend on PPC_CELL_NATIVE instead of PPC_CELL. This may change if we get oprofile support for PS3. Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2006-12-04[POWERPC] ps3: Missed renames of CONFIG_PS3 to CONFIG_PPC_PS3Geert Uytterhoeven
When renaming CONFIG_PS3 to CONFIG_PPC_PS3, a few occurrences have been missed. I also fixed up the alignment in arch/powerpc/platforms/Makefile. Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2006-12-04[POWERPC] cell: fix building without spufsArnd Bergmann
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: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2006-12-04[POWERPC] ps3: add ps3 platform system bus supportGeoff Levand
Adds a PS3 system bus driver. This system bus is a virtual bus used to present the PS3 system devices in the LDM. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2006-12-04[POWERPC] ps3: add lpar addressingGeoff Levand
Adds some needed bits for a config option PS3_USE_LPAR_ADDR that disables the PS3 lpar address translation mechanism. This is a currently needed workaround for limitations in the design of the generic cell spu support. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2006-12-04[POWERPC] ps3: add repository supportGeoff Levand
Adds support for the PS3 repository. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2006-12-04[POWERPC] ps3: add feature bitsGeoff Levand
Adds the needed firmware feature bits for the PS3. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2006-12-04[POWERPC] ps3: add lv1 hvcallsGeoff Levand
Adds the PS3 hvcalls. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2006-12-04[POWERPC] ps3: add support for ps3 platformGeoff Levand
Adds the core platform support for the PS3 game console and other devices using the PS3 hypervisor. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2006-12-04[POWERPC] cell: abstract spu management routinesGeoff Levand
This adds a platform specific spu management abstraction and the coresponding routines to support the IBM Cell Blade. It also removes the hypervisor only resources that were included in struct spu. Three new platform specific routines are introduced, spu_enumerate_spus(), spu_create_spu() and spu_destroy_spu(). The underlying design uses a new type, struct spu_management_ops, to hold function pointers that the platform setup code is expected to initialize to instances appropriate to that platform. For the IBM Cell Blade support, I put the hypervisor only resources that were in struct spu into a platform specific data structure struct spu_pdata. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2006-12-04[POWERPC] add virq_to_hw accessor routineGeoff Levand
This adds an accessor routine virq_to_hw() to the virq routines which hides the implementation details of the virq to hwirq map. Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2006-12-04[POWERPC] Make 64-bit cpu features defined on 32-bitMichael Ellerman
It saves #ifdef'ing in callers if we at least define the 64-bit cpu features for 32-bit also. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2006-12-04[POWERPC] coredump: Add SPU elf notes to coredump.Dwayne Grant McConnell
This patch adds SPU elf notes to the coredump. It creates a separate note for each of /regs, /fpcr, /lslr, /decr, /decr_status, /mem, /signal1, /signal1_type, /signal2, /signal2_type, /event_mask, /event_status, /mbox_info, /ibox_info, /wbox_info, /dma_info, /proxydma_info, /object-id. A new macro, ARCH_HAVE_EXTRA_NOTES, was created for architectures to specify they have extra elf core notes. A new macro, ELF_CORE_EXTRA_NOTES_SIZE, was created so the size of the additional notes could be calculated and added to the notes phdr entry. A new macro, ELF_CORE_WRITE_EXTRA_NOTES, was created so the new notes would be written after the existing notes. The SPU coredump code resides in spufs. Stub functions are provided in the kernel which are hooked into the spufs code which does the actual work via register_arch_coredump_calls(). A new set of __spufs_<file>_read/get() functions was provided to allow the coredump code to read from the spufs files without having to lock the SPU context for each file read from. Cc: <linux-arch@vger.kernel.org> Signed-off-by: Dwayne Grant McConnell <decimal@us.ibm.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
2006-12-04[POWERPC] Distinguish POWER6 partition modes and tell userspacePaul Mackerras
This adds code to look at the properties firmware puts in the device tree to determine what compatibility mode the partition is in on POWER6 machines, and set the ELF aux vector AT_HWCAP and AT_PLATFORM entries appropriately. Specifically, we look at the cpu-version property in the cpu node(s). If that contains a "logical" PVR value (of the form 0x0f00000x), we call identify_cpu again with this PVR value. A value of 0x0f000001 indicates the partition is in POWER5+ compatibility mode, and a value of 0x0f000002 indicates "POWER6 architected" mode, with various extensions disabled. We also look for various other properties: ibm,dfp, ibm,purr and ibm,spurr. Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-04[POWERPC] cell: Add oprofile supportMaynard Johnson
Add PPU event-based and cycle-based profiling support to Oprofile for Cell. Oprofile is expected to collect data on all CPUs simultaneously. However, there is one set of performance counters per node. There are two hardware threads or virtual CPUs on each node. Hence, OProfile must multiplex in time the performance counter collection on the two virtual CPUs. The multiplexing of the performance counters is done by a virtual counter routine. Initially, the counters are configured to collect data on the even CPUs in the system, one CPU per node. In order to capture the PC for the virtual CPU when the performance counter interrupt occurs (the specified number of events between samples has occurred), the even processors are configured to handle the performance counter interrupts for their node. The virtual counter routine is called via a kernel timer after the virtual sample time. The routine stops the counters, saves the current counts, loads the last counts for the other virtual CPU on the node, sets interrupts to be handled by the other virtual CPU and restarts the counters, the virtual timer routine is scheduled to run again. The virtual sample time is kept relatively small to make sure sampling occurs on both CPUs on the node with a relatively small granularity. Whenever the counters overflow, the performance counter interrupt is called to collect the PC for the CPU where data is being collected. The oprofile driver relies on a firmware RTAS call to setup the debug bus to route the desired signals to the performance counter hardware to be counted. The RTAS call must set the routing registers appropriately in each of the islands to pass the signals down the debug bus as well as routing the signals from a particular island onto the bus. There is a second firmware RTAS call to reset the debug bus to the non pass thru state when the counters are not in use. Signed-off-by: Carl Love <carll@us.ibm.com> Signed-off-by: Maynard Johnson <mpjohn@us.ibm.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-04[POWERPC] cell: Add routines for managing PMU interruptsKevin Corry
The following routines are added to arch/powerpc/platforms/cell/pmu.c: cbe_clear_pm_interrupts() cbe_enable_pm_interrupts() cbe_disable_pm_interrupts() cbe_query_pm_interrupts() cbe_pm_irq() cbe_init_pm_irq() This also adds a routine in arch/powerpc/platforms/cell/interrupt.c and some macros in cbe_regs.h to manipulate the IIC_IR register: iic_set_interrupt_routing() Signed-off-by: Kevin Corry <kevcorry@us.ibm.com> Signed-off-by: Carl Love <carll@us.ibm.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-04[POWERPC] cell: Move PMU-related stuff to include/asm-powerpc/cell-pmu.hKevin Corry
Move some PMU-related macros and function prototypes from cbe_regs.h and pmu.h in arch/powerpc/platforms/cell/ to a new header at include/asm-powerpc/cell-pmu.h This is cleaner to use from the oprofile code, since that sits in arch/powerpc/oprofile, not in the cell platform directory. Signed-off-by: Kevin Corry <kevcorry@us.ibm.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-04[POWERPC] spufs: Add /lslr, /dma_info and /proxydma filesDwayne Grant McConnell
The /lslr file gives read access to the SPU_LSLR register in hex; 0x3fff for example The /dma_info file provides read access to the SPU Command Queue in a binary format. The /proxydma_info files provides read access access to the Proxy Command Queue in a binary format. The spu_info.h file provides data structures for interpreting the binary format of /dma_info and /proxydma_info. Signed-off-by: Dwayne Grant McConnell <decimal@us.ibm.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>