- 20 Jul, 2007 40 commits
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Masato Noguchi authored
The decr_status in the LSCSA is valid only in the sequence of context restore. Thus, it's nonsense to read and/or write it through spufs. This patch changes decr_status node to access MFC_CNTL[Ds] in the CSA. Signed-off-by:
Masato Noguchi <Masato.Noguchi@jp.sony.com> Signed-off-by:
Jeremy Kerr <jk@ozlabs.org> Signed-off-by:
Arnd Bergmann <arnd.bergmann@de.ibm.com>
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Masato Noguchi authored
The decr_status in the LSCSA is confusedly used as two meanings: * SPU decrementer was running * SPU decrementer was wrapped as a result of adjust and the code to set decr_status is missing. This patch fixes these problems by using the decr_status argument as a set of flags. This requires a rebuild of the shipped spu_restore code. Signed-off-by:
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Masato Noguchi authored
The following steps are not needed in the SPE context save/restore paths: Save Step 12: save_mfc_decr() save suspend_time to CSA (It will be done by step 14) save ch 7 (decrementer value will be saved in LSCSA by spe-side step 10) Restore Step 59: restore_ch_part1() restore ch 1 (it will be done by spe-side step 15) This change removes the unnecessary steps. Signed-off-by:
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Jeremy Kerr authored
Based on a fix from Masato Noguchi <Masato.Noguchi@jp.sony.com>. Remove the (incorrect) array size declarations in the spufs channel arrays, and use ARRAY_SIZE rather than hardcoded values. Signed-off-by:
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Christoph Hellwig authored
Currently a process is removed from the physical spu when spu_acquire_saved is saved but never put back. This patch adds a new spu_release_saved that is to be paired with spu_acquire_saved and put the process back if it has been in RUNNABLE state before. Niether Jeremy not be are entirely happy about this exact patch because it adds another spu_activate call outside of the owner thread, but I feel this is the best short-term fix we can come up with. Signed-off-by:
Christoph Hellwig <hch@lst.de> Signed-off-by:
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Andre Detsch authored
This patch exports per-context statistics in spufs as long as spu statistics in sysfs. It was formed by merging: "spufs: add spu stats in sysfs" From: Christoph Hellwig "spufs: add stat file to spufs" From: Christoph Hellwig "spufs: fix libassist accounting" From: Jeremy Kerr "spusched: fix spu utilization statistics" From: Luke Browning And some adjustments by myself, after suggestions on cbe-oss-dev. Having separate patches was making the review process harder than it should, as we end up integrating spus and ctx statistics accounting much more than it was on the first implementation. Signed-off-by:
Andre Detsch <adetsch@br.ibm.com> Signed-off-by:
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Jeremy Kerr authored
In 6cbf93960e64f313f6e247cbca7afaa50e3ee2c we added a WARN_ON for calling spu_deactivate on contexts created with the SPU_CREATE_NOSCHED flag. However, all NOSCHED contexts will need to be deactivated when the context is destroyed, so this gives a spurious warning when any NOSCHED context is closed. This change removes the WARN_ON. Signed-off-by:
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Jeremy Kerr authored
Reading from the signal{1,2} files requires a spu_acquire_saved, so make these files write-only for contexts created with SPU_CREATE_NOSCHED. Signed-off-by: -
Kazunori Asayama authored
The current SPU context saving procedure in SPUFS unexpectedly restarts MFC when halting decrementer, because MFC_CNTL[Dh] is set without MFC_CNTL[Sm]. This bug causes, for example, saving broken DMA queues. Here is a patch to fix the problem. Signed-off-by:
Kazunori Asayama <asayama@sm.sony.co.jp> Signed-off-by:
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Sebastian Siewior authored
WARNING: arch/powerpc/platforms/cell/spufs/spufs.o(.init.text+0x158): Section mismatch: reference to .exit.text:.spu_sched_exit (between '.init_module' and '.spu_sched_init') was introduced by c99c1994 This patch removes the warning. Cc: Christoph Hellwig <hch@lst.de> Signed-off-by:
Sebastian Siewior <sebastian@breakpoint.cc> Signed-off-by:
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Michael Ellerman authored
This patch adds support for the setup and decoding of MSIs on Axon-based Cell systems, using the MSIC mechanism. This involves setting up an area of BE memory which the Axon then uses as a FIFO for MSI messages. When one or more MSIs are decoded by the MSIC we receive an interrupt on the MPIC, and the MSI messages are written into the FIFO. At the moment we use a 64KB FIFO, one per MSIC/BE. Signed-off-by:
Michael Ellerman <michael@ellerman.id.au> Signed-off-by:
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Andre Detsch authored
This patch adds support for investigating spus information after a kernel crash event, through kdump vmcore file. Implementation is based on xmon code, but the new functionality was kept independent from xmon. Signed-off-by:
Lucio Jose Herculano Correia <luciojhc@br.ibm.com> Signed-off-by:
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Maxim Shchetynin authored
The Axon bridge chip used on new Cell/B.E. based blade servers comes with a DDR2 memory controller that can be used to attach cheap memory modules, as opposed to the high-speed XDR memory that is used by the CPU itself. Since the memory controller does not participate in the cache coherency protocol, we can not use the memory direcly for Linux applications, but by providing a block device it can be used for swap space, temporary file storage and through the use of the direct_access block device operation for mapping into user addresses, when it is mounted with an appropriate file system. Signed-off-by:
Maxim Shchetynin <maxim@de.ibm.com> Signed-off-by:
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Jean-Christophe DUBOIS authored
The platforms missing the "cpus" property in the "be" node are mono-Cell platforms such as CAB or Getaway. Therefore it is possible to assume that if there is no "cpus" properties under the "be" node then we can safely return the "device node" without more checking. This is a bit hacky but ... it allows it to work on these platforms. Signed-off-by:
Jean-Christophe DUBOIS <jcd@tribudubois.net> Acked-by:
Christian Krafft <krafft@de.ibm.com> Signed-off-by:
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Jean-Christophe DUBOIS authored
Previous patch changed based on Christian Krafft's comment. On some legacy SLOF tree the generic code is unable to ioremap some Cell BE registers. Therefore the "generic" functions are returning a NULL pointer, triggering a crash on such platforms. Let's handle this more gracefully. Signed-off-by:
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Jean-Christophe DUBOIS authored
Previous patch changed based on Christian Krafft's comment. On some legacy SLOF tree the generic code is unable to ioremap some Cell BE registers. Therefore the "generic" functions are returning a NULL pointer, triggering a crash on such platforms. Let's handle this more gracefully. Signed-off-by:
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Christian Krafft authored
This patch reorganizes the code of the driver into three files. Two cbe_cpufreq_pmi.c and cbe_cpufreq_pervasive.c care about hardware. cbe_cpufreq.c contains the logic. There is no changed behaviour, except that the PMI related function is now located in a seperate module cbe_cpufreq_pmi. This module will be required by cbe_cpufreq, if CONFIG_CBE_CPUFREQ_PMI has been set. Signed-off-by:
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Christian Krafft authored
Minor issues have been fixed: * added a missing call to of_node_put() * signedness of a function parameter * added some line breaks * changed global pmi_frequency_limit to a per node pmi_slow_mode_limit array Signed-off-by:
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Christian Krafft authored
This patch fixes the initialization of the cbe_cpufreq driver. The code that initializes the PMI related functions was called per cpu: * registering cpufreq notifier block * registering a pmi handler This ends in a bug that the notifier block gets called in an endless loop. The initialization code is being put to the module init code path by this patch. This way it only gets called once. Signed-off-by:
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Christian Krafft authored
This patch fixes the debug code that calculates the transition time when changing the slow modes on a Cell BE cpu. Signed-off-by:
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Christian Krafft authored
The pmi driver got simplified by removing support for multiple devices. As there is no more than one pmi device per maschine, there is no need to specify the device for listening and sending messages. This way the caller (cbe_cpufreq) doesn't need to scan the device tree. When registering the handler on a board without a pmi interface, pmi.c will just return -ENODEV. The patch that fixed the breakage of cell_defconfig has been broken out of the earlier version of this patch. So this is the version that applies cleanly on top of it. Signed-off-by:
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Avi Kivity authored
The kvm mmu uses page->private on shadow page tables; so does slub, and an oops result. Fix by allocating regular pages for shadows instead of using slub. Tested-by:
S.Çağlar Onur <caglar@pardus.org.tr> Signed-off-by:
Avi Kivity <avi@qumranet.com>
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Avi Kivity authored
Allow real-mode emulation of rdmsr and wrmsr. This allows smp Windows to boot, presumably for its sipi trampoline. Signed-off-by: -
Avi Kivity authored
The memory slot management functions were oriented against vcpu 0, where they should be kvm-wide. This causes hangs starting X on guest smp. Fix by making the functions (and resultant tail in the mmu) non-vcpu-specific. Unfortunately this reduces the efficiency of the mmu object cache a bit. We may have to revisit this later. Signed-off-by: -
Avi Kivity authored
We need to distinguish between large page shadows which have the nx bit set and those which don't. The problem shows up when booting a newer smp Linux kernel, where the trampoline page (which is in real mode, which uses the same shadow pages as large pages) is using the same mapping as a kernel data page, which is mapped using nx, causing kvm to spin on that page. Signed-off-by: -
git://git.kernel.org/pub/scm/linux/kernel/git/sfr/ofconsLinus Torvalds authored
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/sfr/ofcons: Create drivers/of/platform.c Create linux/of_platorm.h [SPARC/64] Rename some functions like PowerPC Begin consolidation of of_device.h Begin to consolidate of_device.c Consolidate of_find_node_by routines Consolidate of_get_next_child Consolidate of_get_parent Consolidate of_find_property Consolidate of_device_is_compatible Start split out of common open firmware code Split out common parts of prom.h
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/inputLinus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: appletouch - improve powersaving for Geyser3 devices Input: lifebook - fix an oops on Panasonic CF-18 Input: document intended meaning of KEY_SWITCHVIDEOMODE Input: switch to using seq_list_xxx helpers Input: i8042 - give more trust to PNP data on i386 Input: add driver for Fujitsu serial touchscreens Input: ads7846 - re-check pendown status before reporting events Input: ads7846 - introduce sample settling delay Input: xpad - add support for leds on xbox 360 pad
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Alan Cox authored
Signed-off-by:
Alan Cox <alan@redhat.com> Signed-off-by:
Linux Torvalds <torvalds@linux-foundation.org>
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Jens Axboe authored
If add_to_page_cache_lru() fails, the page will not be locked. But splice jumps to an error path that does a page release and unlock, causing a BUG() in unlock_page(). Fix this by adding one more label that just releases the page. This bug was actually triggered on EL5 by gurudas pai <gurudas.pai@oracle.com> using fio. Signed-off-by:
Jens Axboe <jens.axboe@oracle.com> Signed-off-by:
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Rusty Russell authored
Guests currently use the default scheduler clock: this means they always use jiffies even if TSC is actually available. It doesn't make any noticeable difference here, but it's a better thing to do. Also remove commented-out asm/sched-clock.h from -mm tree. Signed-off-by:
Rusty Russell <rusty@rustcorp.com.au> Signed-off-by:
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Rusty Russell authored
Signed-off-by:
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Rusty Russell authored
The sense of the IF bit is backwards in the host interrupt handling. This means we always save "IF=1" on the stack when injecting an interrupt. It turns out this is almost always correct (unless the guest is taking a page fault in an interrupt due to an unpopulated vmalloc mapping), so went unnoticed. Signed-off-by:
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David Howells authored
Fix afs_send_simple_reply() to accept a greater-than-zero return value from rxrpc_kernel_send_data() as being a successful return rather than thinking it an error and aborting the call. rxrpc_kernel_send_data() previously returned zero incorrectly when it worked successfully, but has been patched to return the number of bytes it transmitted. Signed-off-by:
David Howells <dhowells@redhat.com> Signed-off-by:
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Linus Torvalds authored
* master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6: (26 commits) sh: intc - add support for SH7750 and its variants sh: Move entry point code to .text.head. sh: heartbeat: Shut up resource size warning. sh: update r2d defconfig and fix SH7751R pci compliation sh: Many symbol exports for nommu allmodconfig. sh: zero terminate 8250 platform data for r2d board sh: cpufreq: Fix up the build for SH-2. sh: Make on-chip DMA channel selection explicit. sh: Fix up CPU dependencies for on-chip DMAC. sh: cpufreq: clock framework support. sh: Support rate rounding for SH7722 FRQCR clocks. sh: Implement clk_round_rate() in the clock framework. sh: Fix up PCI section mismatch warnings. sh: Wire up fallocate() syscall. sh: intc - add support for 7780 sh: intc - improve group support sh: Fix up SH-3 and SH-4 driver dependencies. sh: push-switch: Correct license string. sh: cpufreq: Fix driver dependencies and flag as broken. sh: IPR/INTC2 IRQ setup consolidation. ...
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Linus Torvalds authored
* 'linus' of master.kernel.org:/pub/scm/linux/kernel/git/perex/alsa: (102 commits) [ALSA] version 1.0.14 [ALSA] remove duplicate Logitech Quickcam USB ID in usbquirks.h [ALSA] hda-codec - Fix input with STAC92xx [ALSA] hda-intel: support for iMac 24'' released on 09/2006 [ALSA] hda-codec - Add quirk for Asus P5LD2 [ALSA] snd-ca0106: Add support for X-Fi Extreme Audio. [ALSA] snd-emu10k1:Enable E-Mu 1616m notebook firmware loading. [ALSA] snd-emu10k1: Initial support for E-Mu 1616 and 1616m. [ALSA] cs46xx - Fix PM resume [ALSA] hda: Enable SPDIF in/out on some stac9205 boards [ALSA] timer: check for incorrect device state in non-debug compiles, too [ALSA] snd-aoa-codec-onyx: fix typo [ALSA] hda-codec - Add quirks for HP dx2200/dx2250 [ALSA] hda-codec - Rename HP model-specific quirks [ALSA] hda-codec - Add quirk for HP Samba [ALSA] hda-codec - Add LG LW20 line-in capture source [ALSA] usb-audio - Fix AC3 with M-Audio Audiophile USB [ALSA] hda: stac9202 mixer fix [ALSA] Make s3c24xx_i2s_set_clkdiv() change the correct bits [ALSA] hda-codec - Add LG LW20 si3054 modem id ...
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Linus Torvalds authored
* master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh64-2.6: sh64: Flag sh64_get_page() as __init_refok. sh64: Move entry point code to .text.head. sh64: Fix up PCI section mismatch warnings. sh64: Update cayman defconfig. sh64: Wire up fallocate() syscall.
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git://git.kernel.dk/data/git/linux-2.6-blockLinus Torvalds authored
* 'cfq' of git://git.kernel.dk/data/git/linux-2.6-block: cfq: Write-only stuff in CFQ data structures cfq: async queue allocation per priority
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Nick Piggin authored
Update arm to use bitwise types for its VM_FAULT_ constants. Signed-off-by:
Nick Piggin <npiggin@suse.de> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by:
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Linus Torvalds authored
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev: (29 commits) libata: implement EH fast drain libata: schedule probing after SError access failure during autopsy libata: clear HOTPLUG flag after a reset libata: reorganize ata_ehi_hotplugged() libata: improve SCSI scan failure handling libata: quickly trigger SATA SPD down after debouncing failed libata: improve SATA PHY speed down logic The SATA controller device ID is different according to ahci: implement SCR_NOTIFICATION r/w ahci: make NO_NCQ handling more consistent libata: make ->scr_read/write callbacks return error code libata: implement AC_ERR_NCQ libata: improve EH report formatting sata_sil24: separate out sil24_do_softreset() sata_sil24: separate out sil24_exec_polled_cmd() sata_sil24: replace sil24_update_tf() with sil24_read_tf() ahci: separate out ahci_do_softreset() ahci: separate out ahci_exec_polled_cmd() ahci: separate out ahci_kick_engine() ahci: use deadline instead of fixed timeout for 1st FIS for SRST ...
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Matthew Wilcox authored
I recently ran Lindent over the AdvanSys driver and it moved the comments on #else and #endif lines way over to the right: #else /* ADVANSYS_DEBUG */ This doesn't match what I expect from kernel style, but it is documented. We just need another flag to indent to make this look like: #else /* ADVANSYS_DEBUG */ Signed-off-by:
Matthew Wilcox <matthew@wil.cx> Signed-off-by:
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