- 25 Oct, 2006 12 commits
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Christian Krafft authored
In order to add sysfs attributes to all spu's, there is a need for a list of all available spu's. Adding the device_node makes also sense, as it is needed for proper register access. This patch also adds two functions to create and remove sysfs attributes and attribute_groups to all spus. That allows to group spu attributes in a subdirectory like: /sys/devices/system/spu/spuX/group_name/what_ever This will be used by cbe_thermal to group all attributes dealing with thermal support in one directory. Signed-off-by:
Christian Krafft <krafft@de.ibm.com> Signed-off-by:
Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by:
Paul Mackerras <paulus@samba.org>
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Kevin Corry authored
Add routines for accessing the registers and counters in the performance monitoring unit. Signed-off-by:
Kevin Corry <kevcorry@us.ibm.com> Signed-off-by:
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Kevin Corry authored
Many of the registers in the performance monitoring unit are write-only. We need to save a "shadow" copy when we write to those registers so we can retrieve the values if we need them later. The new cbe_pmd_shadow_regs structure is added to the cbe_regs_map structure so we have the appropriate per-node copies of these shadow values. Signed-off-by:
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David Erb authored
There are a few definitions that are required by subsequent patches, so add them here. The original patch is from David Erb, but is significantly cleaned up by Kevon Corry. Cc: Kevin Corry <kevcorry@us.ibm.com> Signed-off-by:
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Jeremy Kerr authored
When in isolated mode, SPEs have access to an area of persistent storage, which is per-SPE. In order for isolated-mode apps to communicate arbitrary data through this storage, we need to ensure that isolated physical SPEs can be reused for subsequent applications. Add a file ("recycle") in a spethread dir to enable isolated-mode recycling. By writing to this file, the kernel will reload the isolated-mode loader kernel, allowing a new app to be run on the same physical SPE. This requires the spu_acquire_exclusive function to enforce exclusive access to the SPE while the loader is initialised. Signed-off-by:Jeremy Kerr <jk@ozlabs.org> Signed-off-by:
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arnd@arndb.de authored
This patch adds general support for isolated mode SPE apps. Isolated apps are started indirectly, by a dedicated loader "kernel". This patch starts the loader when spe_create is invoked with the ISOLATE flag. We do this at spe_create time to allow libspe to pass the isolated app in before calling spe_run. The loader is read from the device tree, at the location "/spu-isolation/loader". If the loader is not present, an attempt to start an isolated SPE binary will fail with -ENODEV. Update: loader needs to be correctly aligned - copy to a kmalloced buf. Update: remove workaround for systemsim/spurom 'L-bit' bug, which has been fixed. Update: don't write to runcntl on spu_run_init: SPU is already running. Update: do spu_setup_isolated earlier Tested on systemsim. Signed-off-by: -
arnd@arndb.de authored
Signed-off-by:
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Mark Nutter authored
This adds two new flags to spu_create: SPU_CREATE_NONSCHED: create a context that is never moved away from an SPE once it has started running. This flag can only be used by tasks with the CAP_SYS_NICE capability. SPU_CREATE_ISOLATED: create a nonschedulable context that enters isolation mode upon first run. This requires the SPU_CREATE_NONSCHED flag. Signed-off-by:
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Geoff Levand authored
Remove the mostly unused variable isrc from struct spu and a forgotten function declaration. Signed-off-by:
Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by:
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Masato Noguchi authored
SPRN_SDR1 and the SPE's MFC SDR are hypervisor resources and are not accessible from a logical partition. This change adds an access wrapper. When running on bare H/W, the spufs needs to only set the SPE's MFC SDR to the value of the PPE's SPRN_SDR1 once at SPE initialization, so this change renames mfc_sdr_set() to mfc_sdr_setup() and moves the access of SPRN_SDR1 into the mmio wrapper. It also removes the now unneeded member mfc_sdr_RW from struct spu_priv1_collapsed. Signed-off-by:
Masato Noguchi <Masato.Noguchi@jp.sony.com> Signed-off-by:
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Michael Ellerman authored
It makes for a friendlier API if irq_dispose_mapping(NO_IRQ) is a nop, rather than triggering a WARN_ON. Signed-off-by:
Michael Ellerman <michael@ellerman.id.au> Acked-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
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Matthew McClintock authored
Fixed some missing files to be deleted when running make clean Signed-off-by:
Matthew McClintock <msm@freescale.com> Signed-off-by:
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- 24 Oct, 2006 3 commits
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Michael Ellerman authored
Remove the iSeries initrd logic, instead just store the initrd location and size in the device tree so generic code can do the rest for us. The iSeries code had a "feature" which the generic code lacks, ie. if the compressed initrd is bigger than the configured ram disk size, we make the ram disk size bigger. That's bogus, as the compressed size of the initrd tells us nothing about how big the ram disk needs to be. If the ram disk isn't big enough you just need to make CONFIG_BLK_DEV_RAM_SIZE larger. Signed-off-by:
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Andy Fleming authored
The original problem that inspired this patch was solved quite some time ago (Turning off PCI didn't work), but this patch neatens things up a little (I think), by putting all the PCI stuff inside a single CONFIG_PCI block. It also removes the OF PCI bus matching entries if CONFIG_PCI is off. Signed-off-by: -
Josh Boyer authored
This patch adds the mktree program that is needed to post process zImage wrappers for various PowerPC 4xx boards Signed-off-by:
Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by:
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- 23 Oct, 2006 3 commits
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Mark A. Greer authored
Provide primitive malloc, free, and realloc functions for bootwrapper. Signed-off-by:
Mark A. Greer <mgreer@mvista.com> Signed-off-by:
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Mark A. Greer authored
Add serial console support for non-OF systems. There is a generic serial console layer which calls a serial console driver. Included is the serial console driver for the ns16550 class of uarts. Necessary support routines are added as well. Signed-off-by:
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Mark A. Greer authored
Add the latest version of the flatdevtree code and corresponding glue. A phandle table now tracks values returned by ft_find_device(). The value returned by ft_find_device() is a phandle which is really an index into the phandle table. The phandle table contains the address of the corresponding node. When the flat dt is edited/moved, the node pointers in the phandle table are updated accordingly so no phandles kept by the caller become stale. Signed-off-by:
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- 18 Oct, 2006 2 commits
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Mark A. Greer authored
More reorganization of the bootwrapper: - Add dtb section to zImage - ft_init now called by platform_init - Pack a flat dt before calling kernel - Remove size parameter from free - printf only calls console_ops.write it its not NULL - Some cleanup Signed-off-by:
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Paul Mackerras authored
The lazy IRQ disable patch missed a couple of places where the interrupt enable flags need to be restored correctly. First, we weren't restoring the paca->hard_enabled flag on interrupt exit. Instead of saving it on entry, we compute it from the MSR_EE bit in the MSR we are restoring at exit. Secondly, the MMU hash miss code was clearing both paca->soft_enabled and paca->hard_enabled but not restoring them in the case where hash_page was able to resolve the miss from the Linux page tables. Signed-off-by:
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- 16 Oct, 2006 16 commits
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Geoff Levand authored
Change the powerpc hpte_insert routines now called through ppc_md to static scope. Signed-off-by:
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David Gibson authored
Apparently we've copied the todc drivers, for various RTCs used in embedded machines from ARCH=ppc to ARCH=powerpc, despite the fact that it's never used in the latter. This patch removes it. If we ever need these drivers (which we probably shouldn't now the RTC class stuff is in), we can transfer them one by one from ARCH=ppc, removing from the hideous abomination which is the todc "infrastructure". Signed-off-by:
David Gibson <david@gibson.dropbear.id.au> Signed-off-by:
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Olof Johansson authored
Without this patch, on an idle system I get: cpu-power-0:21.638 cpu-power-1:27.102 cpu-power-2:29.343 cpu-power-3:25.784 Total: 103.8W With this patch: cpu-power-0:11.730 cpu-power-1:17.185 cpu-power-2:18.547 cpu-power-3:17.528 Total: 65.0W If I lower HZ to 100, I can get it as low as: cpu-power-0:10.938 cpu-power-1:16.021 cpu-power-2:17.245 cpu-power-3:16.145 Total: 60.2W Another (older) Quad G5 went from 54W to 39W at HZ=250. Coming back out of Deep Nap takes 40-70 cycles longer than coming back from just Nap (which already takes quite a while). I don't think it'll be a performance issue (interrupt latency on an idle system), but in case someone does measurements feel free to report them. Signed-off-by:
Olof Johansson <olof@lixom.net> Acked-by:
Michael Buesch <mb@bu3sch.de> Signed-off-by:
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Paul Mackerras authored
This implements a lazy strategy for disabling interrupts. This means that local_irq_disable() et al. just clear the 'interrupts are enabled' flag in the paca. If an interrupt comes along, the interrupt entry code notices that interrupts are supposed to be disabled, and clears the EE bit in SRR1, clears the 'interrupts are hard-enabled' flag in the paca, and returns. This means that interrupts only actually get disabled in the processor when an interrupt comes along. When interrupts are enabled by local_irq_enable() et al., the code sets the interrupts-enabled flag in the paca, and then checks whether interrupts got hard-disabled. If so, it also sets the EE bit in the MSR to hard-enable the interrupts. This has the potential to improve performance, and also makes it easier to make a kernel that can boot on iSeries and on other 64-bit machines, since this lazy-disable strategy is very similar to the soft-disable strategy that iSeries already uses. This version renames paca->proc_enabled to paca->soft_enabled, and changes a couple of soft-disables in the kexec code to hard-disables, which should fix the crash that Michael Ellerman saw. This doesn't yet use a reserved CR field for the soft_enabled and hard_enabled flags. This applies on top of Stephen Rothwell's patches to make it possible to build a combined iSeries/other kernel. Signed-off-by: -
Anton Blanchard authored
During boot we bring up all memory and cpu nodes. Normally a PCI device will be in one of these online nodes, however in some weird setups it may not. We have only seen this in the lab but we may as well check for the case and fallback to -1 (all nodes). Signed-off-by:
Anton Blanchard <anton@samba.org> Signed-off-by:
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Anton Blanchard authored
Instead of just checking that an address is in the right range, use the provided __kernel_text_address() helper which covers both the kernel and module text sections. Signed-off-by:
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Anton Blanchard authored
Change ->num_pmcs to match the number of PMCs in POWER6. Signed-off-by:
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Anton Blanchard authored
At the moment we rely on a cpu feature bit or a firmware property to detect altivec. If we dont have either of these and the cpu does in fact support altivec we can cause a panic from userspace. It seems safer to always send a signal if we manage to get an 0xf20 exception from userspace. Signed-off-by:
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Randy Vinson authored
When update_bridge_base() updates the IO window on a PCI-to-PCI bridge, it fails to zero the upper 16 bits of the base and limit registers if the window size is less than 64K. This fixes it. Signed-off-by: -
Li Yang authored
Add missing entry in Makefile for MPC832x MDS support. It also change white space to tab in MPC8360 entry. Signed-off-by:
Li Yang <leoli@freescale.com> Signed-off-by:
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Li Yang authored
MPC8360EMDS PB support is broken as some code was missing in last submission. This patch adds missing code and makes MPC8360EMDS PB support working. Signed-off-by:
Kim Phillips <kim.phillips@freescale.com> Signed-off-by:
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Kumar Gala authored
In the timer_interrupt we were not calling set_irq_regs() and if we are profiling we will end up calling get_irq_regs(). This causes bad things to happen. Signed-off-by:
Kumar Gala <galak@kernel.crashing.org> Signed-off-by:
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Eric Sesterhenn authored
A find -iname \*.[ch] | xargs grep "> ARRAY_SIZE(" revealed several incorrect usages of ARRAY_SIZE in the mpc drivers. The last element in the array is always ARRAY_SIZE()-1, this patch modifies the bounds checks accordingly. Signed-off-by:Eric Sesterhenn <snakebyte@gmx.de> Cc: Vitaly Bordug <vbordug@ru.mvista.com> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
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Timur Tabi authored
The default configuration file for the MPC8349E-mITX reference board, mpc834x_itx_defconfig, did not include support for DOS partition table types. This support is necessary because the hard drive that comes with the ITX is formatted with this partition table type. Without this config option, no partitions on the drive can be mounted. Signed-off-by:
Timur Tabi <timur@freescale.com> Signed-off-by:
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Noguchi, Masato authored
This fixes a memory leak introduced by "spufs: add support for read/write oncntl", which was missing a call to simple_attr_close. Signed-off-by:
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Benjamin Herrenschmidt authored
The SPU code will crash if CONFIG_NUMA is not set and SPUs are found on a non-0 node. This workaround will ignore those SPEs and just print an message in the kernel log. Signed-off-by:
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- 15 Oct, 2006 4 commits
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Ulrich Drepper authored
I need this patch to get a UML kernel to compile. This is with the kernel headers in FC6 which are automatically generated from the kernel tree. Some headers are missing but those files don't need them. At least it appears so since the resuling kernel works fine. Tested on x86-64. Signed-off-by:
Ulrich Drepper <drepper@redhat.com> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Linus Torvalds authored
.. and clean up the file mapping code while at it. No point in having a "if (file)" repeated twice, and generally doing similar checks in two different sections of the same code Signed-off-by: -
Petr Vandrovec authored
It is silly to use non-static variable for writting zeroes to the file. And more seriously, foffset in core dump file dump function was incremented too much, so some parts of core dump were shifted by size of few phdrs and notes down, so although gdb was able to load that file, it did not make lot of sense - in my test case data pages were shifted down by about 900 bytes. Signed-off-by:
Petr Vandrovec <petr@vandrovec.name> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6Linus Torvalds authored
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (28 commits) ACPI: check battery status on resume for un/plug events during sleep ACPICA: Fix incorrect handling of PCI Express Root Bridge _HID ACPI: asus_acpi: don't printk on writing garbage to proc files ACPI: asus_acpi: fix proc files parsing ACPI: SCI interrupt source override ACPI: fix printk format warnings ACPI: fix section for CPU init functions ACPI: update comments in motherboard.c ACPI: acpi_pci_link_set() can allocate with either GFP_ATOMIC or GFP_KERNEL ACPI: fix potential OOPS in power driver with CONFIG_ACPI_DEBUG ACPI: ibm_acpi: delete obsolete documentation ACPI: created a dedicated workqueue for notify() execution ACPI: Remove deferred execution from global lock acquire wakeup path MSI S270 Laptop support: backlight, wlan, bluetooth states ACPI: EC: export ec_transaction() for msi-laptop driver ACPI: EC: Simplify acpi_hw_low_level*() with inb()/outb(). ACPI: EC: Unify poll and interrupt gpe handlers ACPI: EC: Unify poll and interrupt mode transaction functions ACPI: EC: Remove unused variables and duplicated code ACPI: EC: Remove unnecessary delay added by previous transation patch. ...
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