- 15 Jul, 2008 8 commits
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Michael Neuling authored
giveup_vsx didn't save the FPU and VMX regsiters. Change it to be like giveup_fpr/altivec which save these registers. Also update call sites where FPU and VMX are already saved to use the original giveup_vsx (renamed to __giveup_vsx). Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Arnd Bergmann authored
Implement save_stack_trace_tsk on powerpc, so that we can run with latencytop. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Dave Kleikamp authored
It is okay for both _PAGE_GUARDED and _PAGE_COHERENT (G and M) to be set in the same pte. In fact, even if that were not the case, there doesn't seem to be any place where G is set without also setting I (_PAGE_NO_CACHE), so the test for I is sufficient as a condition to clear _PAGE_COHERENT when filling the hash table. Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Nathan Lynch authored
Background from Maynard Johnson: As of POWER6, a set of 32 common events is defined that must be supported on all future POWER processors. The main impetus for this compat set is the need to support partition migration, especially from processor P(n) to processor P(n+1), where performance software that's running in the new partition may not be knowledgeable about processor P(n+1). If a performance tool determines it does not support the physical processor, but is told (via the PPC_FEATURE_PSERIES_PERFMON_COMPAT bit) that the processor supports the notion of the PMU compat set, then the performance tool can surface just those events to the user of the tool. PPC_FEATURE_PSERIES_PERFMON_COMPAT indicates that the PMU supports at least this basic subset of events which is compatible across POWER processor lines. Signed-off-by: Nathan Lynch <ntl@pobox.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Sonny Rao authored
Adds a character driver for BSR support on IBM POWER systems including Power5 and Power6. The BSR is an optional processor facility not currently implemented by any other processors. It's primary purpose is fast large SMP synchronization. More details on the BSR are in comments to the code which follows. This patch adds BSR driver to pseries_defconfig. Signed-off-by: Sonny Rao <sonnyrao@linux.vnet.ibm.com> Signed-off-by: Joel Schopp <jschopp@austin.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Stephen Rothwell authored
Commit ef3d3246 ("powerpc/mm: Add Strong Access Ordering support") in the powerpc/{next,master} tree caused the following in a powerpc allmodconfig build: usr/include/asm/mman.h requires linux/mm.h, which does not exist in exported headers We should not use CONFIG_PPC64 in an unprotected (by __KERNEL__) section of an exported include file and linux/mm.h is not exported. So protect the whole section that is CONFIG_PPC64 with __KERNEL__ and put the two introduced includes in there as well. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Benjamin Herrenschmidt authored
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Benjamin Herrenschmidt authored
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- 14 Jul, 2008 18 commits
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Kim Phillips authored
delete obsolete device-type property, delete model property (use compatible property instead), prepend "fsl," to Freescale specific properties. Add nodes to device trees that are missing them, and fix broken property values in other trees. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Kumar Gala authored
Moved Freescale SoC related bindings out of booting-without-of.txt and into their own files. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Jason Jin authored
Remove the "uninitialized use" compile warning and avoid potential runtime issue. Signed-off-by: Jason Jin <Jason.jin@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Kumar Gala authored
There isn't any reason at this point that we can't build 82xx, 83xx & 86xx support in with the other 6xx based boards. Twiddle the Kconfigs to allow this. This allows us to remove the machine type selection for related to 6xx. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Dave Jiang authored
Publish the devices listed in dts under SOC as of_device for 85xx_cds platform. The devices are needed by the 85xx EDAC driver. Signed-off-by: Dave Jiang <djiang@mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Kumar Gala authored
For some reason long ago I decided that we should zero out the time base when we calibrate the decrementer. The problem is that this can be harmful in SMP systems where the firmware has already synchronized the time bases on the various cores. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Kumar Gala authored
Moved the pic initialization into its own common file and out of the board code. Also fixed the OF reference counting on the mpic node. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Jochen Friedrich authored
Initialize I2C pins on boards with CPM1/CPM2 controllers and document the i2c bus in booting-without-of. The boards don't have any I2C chips connected to the I2C bus, so unless some external chips are connected to the boards, this code is just an example of setting everything else up. Signed-off-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Laurent Pinchart authored
Set port->fifosize to the software FIFO size, and update the port timeout when the baud rate is modified. SCC ports have an optional 32 byte hardware FIFO which is currently not taken into account, as there is no documented way to check when the FIFO becomes empty. Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Kumar Gala authored
Add support for the MPC8536 process and MPC8536DS reference board. The MPC8536 is an e500v2 based SoC which eTSEC, USB, SATA, PCI, and PCIe. The USB and SATA IP blocks are similiar to those on the PQ2 Pro SoCs and thus use the same drivers. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Kumar Gala authored
These issues were reported by Stephen Rothwell for another 85xx board port and pointed out by Chen Gong as issues in the DS port. * mpic OF node reference counting was off * of_device_id struct should be marked as __initdata Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Nye Liu authored
udbg_putc is a *function pointer* that is initialized during udbg_init_cpm. It might not be initialized properly when called from udbg_putc_cpm(), so (recursively) call udbg_putc_cpm() directly. Signed-off-by: Nye Liu <nyet@mrv.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Wolfgang Grandegger authored
It adds the missing RTC node to tqm8548.dts and enables support for I2C, DS1307 and LM75 in the default configuration. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Anton Vorontsov authored
i8259 PIC is disabled on MPC8610HPCD, and ULi IDE is configured to use PCI sideband interrupt that is specified in the device tree. Current HPCD's device tree specify that IDE interrupt is low to high sensitive, but in practice ULi IDE throws active-high interrupts (not active-low as all normal PCI devices). Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Rune Torgersen authored
Fix interrupt threading issue on pq2fads when running with CONFIG_PREEMPT_RT Signed-off-by: Rune Torgersen <runet@innovsys.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Rune Torgersen authored
Fix CPM serial port corruption when running with CONFIG_PREEMPT_RT. Userland usage of console, and kernel printf's were stepping on each others toes. Also only take lock if not in an oops. Signed-off-by: Rune Torgersen <runet@innovsys.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Kumar Gala authored
Rename MPIC label to mpic to match all other 85xx .dts and to fix compile issue introduced by addition of the DMA node. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Benjamin Herrenschmidt authored
Manual fixup of include/asm-powerpc/pgtable-ppc64.h
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- 13 Jul, 2008 6 commits
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Linus Torvalds authored
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Li Zefan authored
# cat devices.list c 1:3 r # echo 'c 1:3 w' > sub/devices.allow # cat sub/devices.list c 1:3 w As illustrated, the parent group has no write permission to /dev/null, so it's child should not be allowed to add this write permission. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Acked-by: Serge Hallyn <serue@us.ibm.com> Cc: Serge Hallyn <serue@us.ibm.com> Cc: Paul Menage <menage@google.com> Cc: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Li Zefan authored
# echo "b $((0x7fffffff)):$((0x80000000)) rwm" > devices.allow # cat devices.list b 214748364:-21474836 rwm though a major/minor number of 0x800000000 is meaningless, we should not cast it to a negative value. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Acked-by: Serge Hallyn <serue@us.ibm.com> Cc: Serge Hallyn <serue@us.ibm.com> Cc: Paul Menage <menage@google.com> Cc: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Jiri Pirko authored
Signed-off-by: Jiri Pirko <jpirko@redhat.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds authored
Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: cpusets, hotplug, scheduler: fix scheduler domain breakage
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Dmitry Adamushko authored
Commit f18f982a ("sched: CPU hotplug events must not destroy scheduler domains created by the cpusets") introduced a hotplug-related problem as described below: Upon CPU_DOWN_PREPARE, update_sched_domains() -> detach_destroy_domains(&cpu_online_map) does the following: /* * Force a reinitialization of the sched domains hierarchy. The domains * and groups cannot be updated in place without racing with the balancing * code, so we temporarily attach all running cpus to the NULL domain * which will prevent rebalancing while the sched domains are recalculated. */ The sched-domains should be rebuilt when a CPU_DOWN ops. has been completed, effectively either upon CPU_DEAD{_FROZEN} (upon success) or CPU_DOWN_FAILED{_FROZEN} (upon failure -- restore the things to their initial state). That's what update_sched_domains() also does but only for !CPUSETS case. With f18f982a, sched-domains' reinitialization is delegated to CPUSETS code: cpuset_handle_cpuhp() -> common_cpu_mem_hotplug_unplug() -> rebuild_sched_domains() Being called for CPU_UP_PREPARE and if its callback is called after update_sched_domains()), it just negates all the work done by update_sched_domains() -- i.e. a soon-to-be-offline cpu is included in the sched-domains and that makes it visible for the load-balancer while the CPU_DOWN ops. is in progress. __migrate_live_tasks() moves the tasks off a 'dead' cpu (it's already "offline" when this function is called). try_to_wake_up() is called for one of these tasks from another CPU -> the load-balancer (wake_idle()) picks up a "dead" CPU and places the task on it. Then e.g. BUG_ON(rq->nr_running) detects this a bit later -> oops. Signed-off-by: Dmitry Adamushko <dmitry.adamushko@gmail.com> Tested-by: Vegard Nossum <vegard.nossum@gmail.com> Cc: Paul Menage <menage@google.com> Cc: Max Krasnyansky <maxk@qualcomm.com> Cc: Paul Jackson <pj@sgi.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: miaox@cn.fujitsu.com Cc: rostedt@goodmis.org Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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- 12 Jul, 2008 8 commits
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Linus Torvalds authored
Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: fix ldt limit for 64 bit
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: [SCSI] bsg: fix oops on remove [SCSI] fusion: default MSI to disabled for SPI and FC controllers [SCSI] ipr: Fix HDIO_GET_IDENTITY oops for SATA devices [SCSI] mptspi: fix oops in mptspi_dv_renegotiate_work() [SCSI] erase invalid data returned by device
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Jeff Layton authored
The current definition of wksidarr works fine on little endian arches (since cpu_to_le32 is a no-op there), but on big-endian arches, it fails to compile with this error: error: braced-group within expression allowed only inside a function The problem is that this static declaration has cpu_to_le32 embedded within it, and that expands into a function macro. We need to use __constant_cpu_to_le32() instead. Signed-off-by: Jeff Layton <jlayton@redhat.com> Cc: Steven French <sfrench@us.ibm.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Jeff Layton authored
Try this: mount a share with unix extensions create a file on it umount the share You'll get the following message in the ring buffer: VFS: Busy inodes after unmount of cifs. Self-destruct in 5 seconds. Have a nice day... ...the problem is that cifs_get_inode_info_unix is creating and hashing a new inode even when it's going to return error anyway. The first lookup when creating a file returns an error so we end up leaking this inode before we do the actual create. This appears to be a regression caused by commit 0e4bbde9. The following patch seems to fix it for me, and fixes a minor formatting nit as well. Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: Steven French <sfrench@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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David Howells authored
Fix FRV irqs_disabled() to return an int, not an unsigned long to avoid this warning: kernel/sched.c: In function '__might_sleep': kernel/sched.c:8198: warning: format '%d' expects type 'int', but argument 3 has type 'long unsigned int' Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Robert Richter authored
Cc: Philippe Elie <phil.el@wanadoo.fr> Cc: John Levon <levon@movementarian.org> Cc: Maynard Johnson <maynardj@us.ibm.com> Cc: Richard Purdie <rpurdie@openedhand.com> Cc: Daniel Hansel <daniel.hansel@linux.vnet.ibm.com> Cc: Jason Yeh <jason.yeh@amd.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Robert Richter <robert.richter@amd.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Jon Smirl authored
Add the rtc8564 chip entry Signed-off-by: Jon Smirl <jonsmirl@gmail.com> Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Alessandro Zummo authored
Fix chip naming from fm3031-rtc to fm3031 Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Cc: Sergey Lapin <slapin@ossfans.org> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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