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* sound: oss: off by one bugDan Carpenter2010-01-08
| | | | | | | | | | The problem is that in the original code sound_nblocks could go up to 1024 which would be an array overflow. This was found with a static checker and has been compile tested only. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
* ALSA: hda/realtek: Remove extra .capsrc_nids initialization for ALC889_INTELJaroslav Kysela2009-12-20
| | | | Signed-off-by: Jaroslav Kysela <perex@perex.cz>
* Merge branch 'fix/hda' of ↵Jaroslav Kysela2009-12-20
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 into fixes
| * ALSA: hda - Fix quirk for Maxdata obook4-1Takashi Iwai2009-12-18
| | | | | | | | | | | | | | | | | | Works fine with the auto-parser. Reference: Novell bnc#564940 https://bugzilla.novell.com/show_bug.cgi?id=564940 Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * ALSA: hda - Fix missing capsrc_nids for ALC88xTakashi Iwai2009-12-17
| | | | | | | | | | | | | | | | Some model quirks missed the corresponding capsrc_nids. This resulted in non-working capture source selection. Signed-off-by: Takashi Iwai <tiwai@suse.de> Cc: <stable@kernel.org>
| * ALSA: hda - Make use of beep device found in Dell Vostro 1015nEinar Rünkaru2009-12-17
| | | | | | | | | | | | | | | | Conexant CX20583-10Z has digital beep device with volume control. Making use of them. Signed-off-by: Einar Rünkaru <einarry@smail.ee> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * ALSA: hda - Fixed internal mic initialization for Dell Vostro 1015Einar Rünkaru2009-12-17
| | | | | | | | | | | | | | | | | | Fixed initialization of internal mic and added internal mic boost control Renamed analog mic boost control to ext mic boost contol. Name pair analog/digital seems too confusing for a normal user. Signed-off-by: Einar Rünkaru <einarry@smail.ee> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * ALSA: hda - More ALC663 fixes and support of compatible chipsKailang Yang2009-12-17
| | | | | | | | | | | | | | | | | | | | | | | | | | 1. Add more ASUS NB model. 2. Fixed alc663_m51va_setup M51VA has Digital Mic that NID is 0x12. The record source index is 0x9 for ALC663. So, to modify the alc663_m51va_setup function to index 0x9 and add analog Mic aupport function alc663_mode1_setup. 3. Add ASUS mode7 and mode8 modules for ALC663 Signed-off-by: Kailang Yang <kailang@realtek.com.tw> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * ALSA: hda - Add PCI IDs for Nvidia G2xx-seriesStefan Ringel2009-12-14
| | | | | | | | | | Signed-off-by: Stefan Ringel <stefan.ringel@arcor.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * ALSA: hda: Fix max PCM level to 0 dB for AD1981_HPDaniel T Chen2009-12-14
| | | | | | | | | | | | | | | | | | | | BugLink: https://bugs.launchpad.net/bugs/461062 The original reporter states that PCM maxes at +12 dB and results in very bad distortion. Cap PCM at 0 dB to resolve this symptom. Signed-off-by: Daniel T Chen <crimsun@ubuntu.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * ALSA: hda: Use ALC260_WILL quirk for another Acer model (0x1025007f)Daniel T Chen2009-12-14
| | | | | | | | | | | | | | | | | | | | | | BugLink: https://bugs.launchpad.net/bugs/418627 The original reporter states that this quirk is necessary to obtain reasonable gain for playback. Without it, sound is inaudible. Tested with playback (spkr and hp) and capture. Signed-off-by: Daniel T Chen <crimsun@ubuntu.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* | ALSA: ac97_codec - increase timeout for analog sections to 5 secondSteve Soule2009-12-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I have a Soundblaster 16PCI. For many years, alsa has had a bug where not all of the card's controls are detected (many alsa versions, many kernel versions). In particular, Master Playback Volume is usually not detected, and so I get no sound or extremely faint sound. The problem has always been inconsistent: sometimes all of the controls are detected correctly, and sometimes a partial set is detected. It works correctly about 10% of the time. Finally, I got around to tracking down the problem. When the driver fails, it prints the kernel message "AC'97 0 analog subsections not ready". This message is generated from the function snd_ac97_mixer() in ac97_codec.c. The message indicates that the card failed to come back after reset within the time limit. The time limit is 120 milliseconds. I tried increasing the time limit to 1 second, and found that this made the driver work about 70% of the time. I tried increasing it to 5 seconds, and it now seems to work 100% of the time. I expect that this change would be completely harmless for existing cards that work, and would only introduce additional delay for cards that do not work. ALSA bug#4032. Signed-off-by: Steve Soule <sts11dbxr@gmail.com> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
* | Merge branch 'ixp4xx' of ↵Linus Torvalds2009-12-12
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6 * 'ixp4xx' of git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6: IXP4xx: GTWX5715 platform only has two PCI IRQ lines, not four. IXP4xx: Introduce IXP4XX_GPIO_IRQ(n) macro and convert IXP4xx platform files. IXP4xx: move Gemtek GTWX5715 platform macros to the platform code. IXP4xx: Remove unused Motorola PrPMC1100 platform macros. IXP4xx: move FSG platform macros to the platform code. IXP4xx: move DSM G600 platform macros to the platform code. IXP4xx: move NAS100D platform macros to the platform code. IXP4xx: move NSLU2 platform macros to the platform code. IXP4xx: move Coyote platform macros to the platform code. IXP4xx: move AVILA platform macros to the platform code. IXP4xx: move IXDP425 platform macros to the platform code. IXP4xx: Extend PCI MMIO indirect address space to 1 GB. IXP4xx: Fix compilation failure with CONFIG_IXP4XX_INDIRECT_PCI. IXP4xx: Drop "__ixp4xx_" prefix from in/out/ioread/iowrite functions for clarity. IXP4xx: Rename indirect MMIO primitives from __ixp4xx_* to __indirect_*. IXP4xx: Ensure index is positive in irq_to_gpio() and npe_request(). ARM: fix insl() and outsl() endianness on IXP4xx architecture. IXP4xx: Fix normally-disabled debugging text in drivers/net/arm/ixp4xx_eth.c. IXP4xx: change the timer base frequency to 66.666000 MHz.
| * | IXP4xx: GTWX5715 platform only has two PCI IRQ lines, not four.Krzysztof Hałasa2009-12-05
| | | | | | | | | | | | Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
| * | IXP4xx: Introduce IXP4XX_GPIO_IRQ(n) macro and convert IXP4xx platform files.Krzysztof Hałasa2009-12-05
| | | | | | | | | | | | Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
| * | IXP4xx: move Gemtek GTWX5715 platform macros to the platform code.Krzysztof Hałasa2009-12-05
| | | | | | | | | | | | Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
| * | IXP4xx: Remove unused Motorola PrPMC1100 platform macros.Krzysztof Hałasa2009-12-05
| | | | | | | | | | | | | | | | | | | | | PrPMC1100 is handled by IXDP425 platform code, there is no need for duplicate set of macros. Remove them. Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
| * | IXP4xx: move FSG platform macros to the platform code.Krzysztof Hałasa2009-12-05
| | | | | | | | | | | | Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
| * | IXP4xx: move DSM G600 platform macros to the platform code.Krzysztof Hałasa2009-12-05
| | | | | | | | | | | | Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
| * | IXP4xx: move NAS100D platform macros to the platform code.Krzysztof Hałasa2009-12-05
| | | | | | | | | | | | Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
| * | IXP4xx: move NSLU2 platform macros to the platform code.Krzysztof Hałasa2009-12-05
| | | | | | | | | | | | Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
| * | IXP4xx: move Coyote platform macros to the platform code.Krzysztof Hałasa2009-12-05
| | | | | | | | | | | | Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
| * | IXP4xx: move AVILA platform macros to the platform code.Krzysztof Hałasa2009-12-05
| | | | | | | | | | | | Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
| * | IXP4xx: move IXDP425 platform macros to the platform code.Krzysztof Hałasa2009-12-05
| | | | | | | | | | | | Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
| * | IXP4xx: Extend PCI MMIO indirect address space to 1 GB.Krzysztof Hałasa2009-12-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | IXP4xx CPUs can indirectly access the whole 4 GB PCI MMIO address space (using the non-prefetch registers). Previously the available space depended on the CPU variant, since one of the IXP43x platforms needed more than the usual 128 MB. 1 GB should be enough for everyone, and if not, we can trivially increase it. Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
| * | IXP4xx: Fix compilation failure with CONFIG_IXP4XX_INDIRECT_PCI.Krzysztof Hałasa2009-12-05
| | | | | | | | | | | | | | | | | | | | | | | | Instead of including the heavy linux/mm.h for VMALLOC_START, test the addresses against PCI MIN and MAX addresses. Indirect PCI uses 1:1 mapping for MMIO space making this change possible. Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
| * | IXP4xx: Drop "__ixp4xx_" prefix from in/out/ioread/iowrite functions for ↵Krzysztof Hałasa2009-12-05
| | | | | | | | | | | | | | | | | | clarity. Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
| * | IXP4xx: Rename indirect MMIO primitives from __ixp4xx_* to __indirect_*.Krzysztof Hałasa2009-12-05
| | | | | | | | | | | | Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
| * | IXP4xx: Ensure index is positive in irq_to_gpio() and npe_request().Roel Kluin2009-12-05
| | | | | | | | | | | | | | | | | | | | | The indexes were signed, so negatives were possible. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
| * | ARM: fix insl() and outsl() endianness on IXP4xx architecture.Krzysztof Hałasa2009-12-05
| | | | | | | | | | | | | | | | | | The repetitive in/out functions must preserve order, not value. Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
| * | IXP4xx: Fix normally-disabled debugging text in drivers/net/arm/ixp4xx_eth.c.Krzysztof Hałasa2009-12-05
| | | | | | | | | | | | Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
| * | IXP4xx: change the timer base frequency to 66.666000 MHz.Krzysztof Hałasa2009-12-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | Clock generators used by IXP4xx processors are usually 33.333 MHz, sometimes 33.33 MHz and few platforms use 33 MHz. The timers tick twice as fast, that means 66.666, 66.66 or 66 MHz. Current 66.666666 MHz means 10 ppm offset from the usual 66.666 MHz. Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
* | | [BKL] add 'might_sleep()' to the outermost lock takerLinus Torvalds2009-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As shown by the previous patch (6698e3472: "tty: Fix BKL taken under a spinlock bug introduced in the BKL split") the BKL removal is prone to some subtle issues, where removing the BKL in one place may in fact make a previously nested BKL call the new outer call, and then prone to nasty deadlocks with other spinlocks. In general, we should never take the BKL while we're holding a spinlock, so let's just add a "might_sleep()" to it (even though the BKL doesn't technically sleep - at least not yet), and we'll get nice warnings the next time this kind of problem happens during BKL removal. Acked-and-Tested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | tty: Fix BKL taken under a spinlock bug introduced in the BKL splitAlan Cox2009-12-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The fasync path takes the BKL (it probably doesn't need to in fact) while holding the file_list spinlock. You can't do that with the kernel lock: it causes lock inversions and deadlocks. Leave the BKL over that bit for the moment. Identified by AKPM. Signed-off-by: Alan Cox <alan@linux.intel.com> Acked-and-Tested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Merge branch 'next' of ↵Linus Torvalds2009-12-12
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (151 commits) powerpc: Fix usage of 64-bit instruction in 32-bit altivec code MAINTAINERS: Add PowerPC patterns powerpc/pseries: Track previous CPPR values to correctly EOI interrupts powerpc/pseries: Correct pseries/dlpar.c build break without CONFIG_SMP powerpc: Make "intspec" pointers in irq_host->xlate() const powerpc/8xx: DTLB Miss cleanup powerpc/8xx: Remove DIRTY pte handling in DTLB Error. powerpc/8xx: Start using dcbX instructions in various copy routines powerpc/8xx: Restore _PAGE_WRITETHRU powerpc/8xx: Add missing Guarded setting in DTLB Error. powerpc/8xx: Fixup DAR from buggy dcbX instructions. powerpc/8xx: Tag DAR with 0x00f0 to catch buggy instructions. powerpc/8xx: Update TLB asm so it behaves as linux mm expects. powerpc/8xx: Invalidate non present TLBs powerpc/pseries: Serialize cpu hotplug operations during deactivate Vs deallocate pseries/pseries: Add code to online/offline CPUs of a DLPAR node powerpc: stop_this_cpu: remove the cpu from the online map. powerpc/pseries: Add kernel based CPU DLPAR handling sysfs/cpu: Add probe/release files powerpc/pseries: Kernel DLPAR Infrastructure ...
| * | | powerpc: Fix usage of 64-bit instruction in 32-bit altivec codeBenjamin Herrenschmidt2009-12-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | e821ea70f3b4873b50056a1e0f74befed1014c09 introduced a bug by copying some 64-bit originated code as-is to be used by both 32 and 64-bit but this code contains a 64-bit ony "cmpdi" instruction. This changes it to cmpwi, which is fine since VRSAVE can only contains a 32-bit value anyway. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> CC: <stable@kernel.org>
| * | | Merge commit 'origin/master' into nextBenjamin Herrenschmidt2009-12-09
| |\ \ \ | | | | | | | | | | | | | | | | | | | | Conflicts: include/linux/kvm.h
| * | | | MAINTAINERS: Add PowerPC patternsJoe Perches2009-12-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On Fri, 2009-12-04 at 20:59 +1100, Benjamin Herrenschmidt wrote: > On Fri, 2009-12-04 at 10:34 +0100, Jean Delvare wrote: > > I've sent it to linuxppc-dev@ozlabs.org on October 14th. This is the > > address which is listed 22 times in MAINTAINERS. If it isn't correct, > > then please update MAINTAINERS. > No it's fine both shoul work. Your patches are there, just waiting for > me to pick them up, I was just firing a reminder to the rest of the CC > list :-) (and I do remember fwd'ing a couple of your patches to the > list, for some reason they didn't make it to patchwork back then, that > was a few month ago). > Anyways, I've been stretched thin with all sort of stuff lately, so bear > with me if I'm a bit slow at taking or testing stuff, I'm doing my best. Adding patterns to the PowerPC sections of MAINTAINERS is useful. Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | powerpc/pseries: Track previous CPPR values to correctly EOI interruptsMark Nelson2009-12-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | At the moment when we EOI an interrupt we set the CPPR back to 0xFF regardless of its previous value. This could lead to problems if we take an interrupt with a priority of 5, but before EOIing it we get an IPI which has a priority of 4. The problem is that at the moment when we EOI the IPI we will set the CPPR to 0xFF, but it should really be set back to 5 (the previous priority). To keep track of the previous CPPR values we create the xics_cppr structure that has an array for CPPR values and an index pointing to the current priority. This can easily grow if new priorities get added in the future. This will also be useful because the partition adjunct option of upcoming machines will update the H_XIRR hcall to accept the CPPR as a parameter. Signed-off-by: Mark Nelson <markn@au1.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | powerpc/pseries: Correct pseries/dlpar.c build break without CONFIG_SMPNathan Fontenot2009-12-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The recent patch to add cpu offline/online as part of the DLPAR process for pseries causes a build break if CONFIG_SMP is not defined. Original patch here; http://lists.ozlabs.org/pipermail/linuxppc-dev/2009-November/078299.html This corrects the build break by moving the online_node_cpus and offline_node_cpus under the #ifdef CONFIG_ARCH_CPU_PROBE_RELEASE portions of dlpar.c. This patch also slightly modifies the online_node_cpus and offline_node_cpus routines to prepend dlpar_ to the them and make them static. These two routine are only used in the dlpar add/remove of cpus and these changes should help clarify that. Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | powerpc: Make "intspec" pointers in irq_host->xlate() constRoman Fietze2009-12-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Writing a driver using SCLPC on the MPC5200B I detected, that the intspec arrays to map irqs to Linux virq cannot be const, because the mapping and xlate functions only take non const pointers. All those functions do not modify the intspec, so a const pointer could be used. Signed-off-by: Roman Fietze <roman.fietze@telemotive.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | powerpc/8xx: DTLB Miss cleanupJoakim Tjernlund2009-12-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use symbolic constant for PRESENT and avoid branching. Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | powerpc/8xx: Remove DIRTY pte handling in DTLB Error.Joakim Tjernlund2009-12-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no need to do set the DIRTY bit directly in DTLB Error. Trap to do_page_fault() and let the generic MM code do the work. Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | powerpc/8xx: Start using dcbX instructions in various copy routinesJoakim Tjernlund2009-12-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that 8xx can fixup dcbX instructions, start using them where possible like every other PowerPc arch do. Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | powerpc/8xx: Restore _PAGE_WRITETHRUJoakim Tjernlund2009-12-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 8xx has not had WRITETHRU due to lack of bits in the pte. After the recent rewrite of the 8xx TLB code, there are two bits left. Use one of them to WRITETHRU. Perhaps use the last SW bit to PAGE_SPECIAL or PAGE_FILE? Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | powerpc/8xx: Add missing Guarded setting in DTLB Error.Joakim Tjernlund2009-12-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | only DTLB Miss did set this bit, DTLB Error needs too otherwise the setting is lost when the page becomes dirty. Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | powerpc/8xx: Fixup DAR from buggy dcbX instructions.Joakim Tjernlund2009-12-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is an assembler version to fixup DAR not being set by dcbX, icbi instructions. There are two versions, one uses selfmodifing code, the other uses a jump table but is much bigger(default). Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | powerpc/8xx: Tag DAR with 0x00f0 to catch buggy instructions.Joakim Tjernlund2009-12-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dcbz, dcbf, dcbi, dcbst and icbi do not set DAR when they cause a DTLB Error. Dectect this by tagging DAR with 0x00f0 at every exception exit that modifies DAR. Test for DAR=0x00f0 in DataTLBError and bail to handle_page_fault(). Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | powerpc/8xx: Update TLB asm so it behaves as linux mm expects.Joakim Tjernlund2009-12-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update the TLB asm to make proper use of _PAGE_DIRY and _PAGE_ACCESSED. Get rid of _PAGE_HWWRITE too. Pros: - I/D TLB Miss never needs to write to the linux pte. - _PAGE_ACCESSED is only set on TLB Error fixing accounting - _PAGE_DIRTY is mapped to 0x100, the changed bit, and is set directly when a page has been made dirty. - Proper RO/RW mapping of user space. - Free up 2 SW TLB bits in the linux pte(add back _PAGE_WRITETHRU ?) - kernel RO/user NA support. Cons: - A few more instructions in the TLB Miss routines. Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| * | | | powerpc/8xx: Invalidate non present TLBsJoakim Tjernlund2009-12-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 8xx sometimes need to load a invalid/non-present TLBs in it DTLB asm handler. These must be invalidated separaly as linux mm don't. Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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