- 11 4月, 2011 16 次提交
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由 Peter Zijlstra 提交于
Since we now allocate SD_LV_MAX * nr_cpu_ids sched_domain/sched_group structures when rebuilding the scheduler toplogy it might make sense to shrink that depending on the CONFIG_ options. This is only needed until we get rid of SD_LV_* alltogether and provide a full dynamic topology interface. Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Nick Piggin <npiggin@kernel.dk> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Link: http://lkml.kernel.org/r/20110407122942.406226449@chello.nlSigned-off-by: NIngo Molnar <mingo@elte.hu>
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由 Peter Zijlstra 提交于
Don't use sd->level for identifying properties of the domain. Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Nick Piggin <npiggin@kernel.dk> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Link: http://lkml.kernel.org/r/20110407122942.350174079@chello.nlSigned-off-by: NIngo Molnar <mingo@elte.hu>
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由 Peter Zijlstra 提交于
If we check the root_domain reference count we can see if its been used or not, use this observation to simplify some of the return paths. Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Nick Piggin <npiggin@kernel.dk> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Link: http://lkml.kernel.org/r/20110407122942.298339503@chello.nlSigned-off-by: NIngo Molnar <mingo@elte.hu>
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由 Peter Zijlstra 提交于
Instead of relying on static allocations for the sched_domain and sched_group trees, dynamically allocate and RCU free them. Allocating this dynamically also allows for some build_sched_groups() simplification since we can now (like with other simplifications) rely on the sched_domain tree instead of hard-coded knowledge. One tricky to note is that detach_destroy_domains() needs to hold rcu_read_lock() over the entire tear-down, per-cpu is not sufficient since that can lead to partial sched_group existance (could possibly be solved by doing the tear-down backwards but this is much more robust). A concequence of the above is that we can no longer print the sched_domain debug stuff from cpu_attach_domain() since that might now run with preemption disabled (due to classic RCU etc.) and sched_domain_debug() does some GFP_KERNEL allocations. Another thing to note is that we now fully rely on normal RCU and not RCU-sched, this is because with the new and exiting RCU flavours we grew over the years BH doesn't necessarily hold off RCU-sched grace periods (-rt is known to break this). This would in fact already cause us grief since we do sched_domain/sched_group iterations from softirq context. This patch is somewhat larger than I would like it to be, but I didn't find any means of shrinking/splitting this. Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Nick Piggin <npiggin@kernel.dk> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Link: http://lkml.kernel.org/r/20110407122942.245307941@chello.nlSigned-off-by: NIngo Molnar <mingo@elte.hu>
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由 Peter Zijlstra 提交于
Again, instead of relying on knowing the possible domains and their order, simply rely on the sched_domain tree and whatever domains are present in there to initialize the sched_group cpu_power. Note: we need to iterate the CPU mask backwards because of the cpumask_first() condition for iterating up the tree. By iterating the mask backwards we ensure all groups of a domain are set-up before starting on the parent groups that rely on its children to be completely done. Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Nick Piggin <npiggin@kernel.dk> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Link: http://lkml.kernel.org/r/20110407122942.187335414@chello.nlSigned-off-by: NIngo Molnar <mingo@elte.hu>
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由 Peter Zijlstra 提交于
Instead of relying on knowing the build order and various CONFIG_ flags simply remember the bottom most sched_domain when we created the domain hierarchy. Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Nick Piggin <npiggin@kernel.dk> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Link: http://lkml.kernel.org/r/20110407122942.134511046@chello.nlSigned-off-by: NIngo Molnar <mingo@elte.hu>
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由 Peter Zijlstra 提交于
Instead of calling build_sched_groups() for each possible sched_domain we might have created, note that we can simply iterate the sched_domain tree and call it for each sched_domain present. Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Nick Piggin <npiggin@kernel.dk> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Link: http://lkml.kernel.org/r/20110407122942.077862519@chello.nlSigned-off-by: NIngo Molnar <mingo@elte.hu>
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由 Peter Zijlstra 提交于
Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Nick Piggin <npiggin@kernel.dk> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Link: http://lkml.kernel.org/r/20110407122942.025636011@chello.nlSigned-off-by: NIngo Molnar <mingo@elte.hu>
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由 Peter Zijlstra 提交于
The NODE sched_domain is 'special' in that it allocates sched_groups per CPU, instead of sharing the sched_groups between all CPUs. While this might have some benefits on large NUMA and avoid remote memory accesses when iterating the sched_groups, this does break current code that assumes sched_groups are shared between all sched_domains (since the dynamic cpu_power patches). So refactor the NODE groups to behave like all other groups. (The ALLNODES domain again shared its groups across the CPUs for some reason). If someone does measure a performance decrease due to this change we need to revisit this and come up with another way to have both dynamic cpu_power and NUMA work nice together. Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Nick Piggin <npiggin@kernel.dk> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Link: http://lkml.kernel.org/r/20110407122941.978111700@chello.nlSigned-off-by: NIngo Molnar <mingo@elte.hu>
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由 Peter Zijlstra 提交于
Notice that the mask being computed is the same as the domain span we just computed. By using the domain_span we can avoid some mask allocations and computations. Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Nick Piggin <npiggin@kernel.dk> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Link: http://lkml.kernel.org/r/20110407122941.925028189@chello.nlSigned-off-by: NIngo Molnar <mingo@elte.hu>
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由 Peter Zijlstra 提交于
The code in update_group_power() does what init_sched_groups_power() does and more, so remove the special init_ code and call the generic code instead. Also move the sd->span_weight initialization because update_group_power() needs it. Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Nick Piggin <npiggin@kernel.dk> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Link: http://lkml.kernel.org/r/20110407122941.875856012@chello.nlSigned-off-by: NIngo Molnar <mingo@elte.hu>
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由 Peter Zijlstra 提交于
Non weak static functions clearly are not arch specific, so remove the arch_ prefix. Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Nick Piggin <npiggin@kernel.dk> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Link: http://lkml.kernel.org/r/20110407122941.820460566@chello.nlSigned-off-by: NIngo Molnar <mingo@elte.hu>
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由 Shaohua Li 提交于
calc_delta_fair() checks NICE_0_LOAD already, delete duplicate check. Signed-off-by: Shaohua Li<shaohua.li@intel.com> Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Link: http://lkml.kernel.org/r/1302238389.3981.92.camel@sli10-conroeSigned-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ken Chen 提交于
The scheduler load balancer has specific code to deal with cases of unbalanced system due to lots of unmovable tasks (for example because of hard CPU affinity). In those situation, it excludes the busiest CPU that has pinned tasks for load balance consideration such that it can perform second 2nd load balance pass on the rest of the system. This all works as designed if there is only one cgroup in the system. However, when we have multiple cgroups, this logic has false positives and triggers multiple load balance passes despite there are actually no pinned tasks at all. The reason it has false positives is that the all pinned logic is deep in the lowest function of can_migrate_task() and is too low level: load_balance_fair() iterates each task group and calls balance_tasks() to migrate target load. Along the way, balance_tasks() will also set a all_pinned variable. Given that task-groups are iterated, this all_pinned variable is essentially the status of last group in the scanning process. Task group can have number of reasons that no load being migrated, none due to cpu affinity. However, this status bit is being propagated back up to the higher level load_balance(), which incorrectly think that no tasks were moved. It kick off the all pinned logic and start multiple passes attempt to move load onto puller CPU. To fix this, move the all_pinned aggregation up at the iterator level. This ensures that the status is aggregated over all task-groups, not just last one in the list. Signed-off-by: NKen Chen <kenchen@google.com> Cc: stable@kernel.org Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/BANLkTi=ernzNawaR5tJZEsV_QVnfxqXmsQ@mail.gmail.comSigned-off-by: NIngo Molnar <mingo@elte.hu>
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由 Ken Chen 提交于
In function find_busiest_group(), the sched-domain avg_load isn't calculated at all if there is a group imbalance within the domain. This will cause erroneous imbalance calculation. The reason is that calculate_imbalance() sees sds->avg_load = 0 and it will dump entire sds->max_load into imbalance variable, which is used later on to migrate entire load from busiest CPU to the puller CPU. This has two really bad effect: 1. stampede of task migration, and they won't be able to break out of the bad state because of positive feedback loop: large load delta -> heavier load migration -> larger imbalance and the cycle goes on. 2. severe imbalance in CPU queue depth. This causes really long scheduling latency blip which affects badly on application that has tight latency requirement. The fix is to have kernel calculate domain avg_load in both cases. This will ensure that imbalance calculation is always sensible and the target is usually half way between busiest and puller CPU. Signed-off-by: NKen Chen <kenchen@google.com> Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Cc: <stable@kernel.org> Link: http://lkml.kernel.org/r/20110408002322.3A0D812217F@elm.corp.google.comSigned-off-by: NIngo Molnar <mingo@elte.hu>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: hda - Don't query connections for widgets have no connections ALSA: HDA: Fix single internal mic on ALC275 (Sony Vaio VPCSB1C5E) ALSA: hda - HDMI: Fix MCP7x audio infoframe checksums ALSA: usb-audio: define another USB ID for a buggy USB MIDI cable ALSA: HDA: Fix dock mic for Lenovo X220-tablet ASoC: format_register_str: Don't clip register values ASoC: PXA: Fix oops in __pxa2xx_pcm_prepare ASoC: zylonite: set .codec_dai_name in initializer
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- 10 4月, 2011 1 次提交
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git://git.infradead.org/mtd-2.6由 Linus Torvalds 提交于
* git://git.infradead.org/mtd-2.6: mtd: atmel_nand: use CPU I/O when buffer is in vmalloc(ed) region mtd: atmel_nand: modify test case for using DMA operations mtd: atmel_nand: fix support for CPUs that do not support DMA access mtd: atmel_nand: trivial: change DMA usage information trace mtd: mtdswap: fix printk format warning
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- 09 4月, 2011 4 次提交
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由 Takashi Iwai 提交于
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由 Takashi Iwai 提交于
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git://git.linux-nfs.org/projects/trondmy/nfs-2.6由 Linus Torvalds 提交于
* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: NFS: Change initial mount authflavor only when server returns NFS4ERR_WRONGSEC NFS: Fix a signed vs. unsigned secinfo bug Revert "net/sunrpc: Use static const char arrays"
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由 Randy Dunlap 提交于
Fix erroneous syscall kernel-doc comments in kernel/signal.c. Reported-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 08 4月, 2011 15 次提交
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git://git390.marist.edu/pub/scm/linux-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] compile fix for latest binutils [S390] cio: prevent purging of CCW devices in the online state [S390] qdio: fix init sequence [S390] Fix parameter passing for smp_switch_to_cpu() [S390] oprofile s390: prevent stack corruption
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git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6由 Linus Torvalds 提交于
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6: quota: Don't write quota info in dquot_commit() ext3: Fix writepage credits computation for ordered mode
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git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog由 Linus Torvalds 提交于
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog: watchdog: mpc8xxx_wdt: fix build
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由 Peter Korsgaard 提交于
Since 1c48a5c9 (dt: Eliminate of_platform_{,un}register_driver) mpc8xxx_wdt no longer builds as it tries to refer to a 'match' variable rather than ofdev->dev.of_match that it checks just before. Signed-off-by: NPeter Korsgaard <jacmet@sunsite.dk> Acked-by: NGrant Likely <grant.likely@secretlab.ca> Signed-off-by: NWim Van Sebroeck <wim@iguana.be>
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由 Bryan Schumaker 提交于
When attempting an initial mount, we should only attempt other authflavors if AUTH_UNIX receives a NFS4ERR_WRONGSEC error. This allows other errors to be passed back to userspace programs. Signed-off-by: NBryan Schumaker <bjschuma@netapp.com> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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由 Linus Torvalds 提交于
Merge branch 'fbdev-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6 * 'fbdev-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6: efifb: Add override for 11" Macbook Air 3,1 efifb: Support overriding fields FW tells us with the DMI data. fb: Reduce priority of resource conflict message savagefb: Remove obsolete else clause in savage_setup_i2c_bus savagefb: Set up I2C based on chip family instead of card id savagefb: Replace magic register address with define drivers/video/bfin-lq035q1-fb.c: introduce missing kfree video: s3c-fb: fix checkpatch errors and warning efifb: support AMD Radeon HD 6490 s3fb: fix Virge/GX2 fbcon: Remove unused 'display *p' variable from fb_flashcursor() fbdev: sh_mobile_lcdcfb: fix module lock acquisition fbdev: sh_mobile_lcdcfb: add blanking support viafb: initialize margins correct viafb: refresh rate bug collection sh: mach-ap325rxa: move backlight control code sh: mach-ecovec24: support for main lcd backlight
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由 Linus Torvalds 提交于
Merge branch 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: ARM: arch-shmobile: only run FSI init on respective boards ARM: arch-shmobile: only run HDMI init on respective boards ARM: mach-shmobile: Correctly check for CONFIG_MACH_MACKEREL
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git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6由 Linus Torvalds 提交于
* 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: select ARCH_NO_SYSDEV_OPS. sh: fix build error in board-sh7757lcr.c sh: landisk: Remove whitespace sh: landisk: Remove mv_nr_irqs sh: sh-sci: Fix double initialization by serial_console_setup serial: sh-sci: prevent setup of uninitialized serial console dma: shdma: add checking the DMAOR_AE in sh_dmae_err
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由 Linus Torvalds 提交于
Merge branches 'x86-fixes-for-linus', 'sched-fixes-for-linus', 'timers-fixes-for-linus', 'irq-fixes-for-linus' and 'perf-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: x86-32, fpu: Fix FPU exception handling on non-SSE systems x86, hibernate: Initialize mmu_cr4_features during boot x86-32, NUMA: Fix ACPI NUMA init broken by recent x86-64 change x86: visws: Fixup irq overhaul fallout * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: Clean up rebalance_domains() load-balance interval calculation * 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86/mrst/vrtc: Fix boot crash in mrst_rtc_init() rtc, x86/mrst/vrtc: Fix boot crash in rtc_read_alarm() * 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: genirq: Fix cpumask leak in __setup_irq() * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf probe: Fix listing incorrect line number with inline function perf probe: Fix to find recursively inlined function perf probe: Fix multiple --vars options behavior perf probe: Fix to remove redundant close perf probe: Fix to ensure function declared file
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6由 Linus Torvalds 提交于
* 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (28 commits) staging: usbip: bugfix for isochronous packets and optimization staging: usbip: bugfix add number of packets for isochronous frames staging: usbip: bugfixes related to kthread conversion staging: usbip: fix shutdown problems. staging: hv: Fix GARP not sent after Quick Migration staging: IIO: IMU: ADIS16400: Avoid using printk facility directly staging: IIO: IMU: ADIS16400: Fix product ID check, skip embedded revision number staging: IIO: IMU: ADIS16400: Make sure only enabled scan_elements are pushed into the ring staging: IIO: IMU: ADIS16400: Fix addresses of GYRO and ACCEL calibration offset staging: IIO: IMU: ADIS16400: Add delay after self test staging: IIO: IMU: ADIS16400: Fix up SPI messages cs_change behavior staging/rtl81*: build as loadable modules only staging: brcm80211: removed 'is_amsdu causing toss' log spam staging: brcm80211: fix for 'Short CCK' log spam staging: brcm80211: fix for 'AC_BE txop..' logs spammed problem staging: memrar: remove driver from tree staging: sep: remove last memrar remnants staging: fix hv_mouse build, needs delay.h staging: fix olpc_dcon build errors staging: sm7xx: fixed defines ... Fix up trivial conflict in drivers/staging/memrar/memrar_handler.c (deleted vs trivial spelling fixes)
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git://git.kernel.org/pub/scm/virt/kvm/kvm由 Linus Torvalds 提交于
* 'kvm-updates/2.6.39' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: move and fix substitue search for missing CPUID entries KVM: fix XSAVE bit scanning KVM: Enable async page fault processing KVM: fix crash on irqfd deassign
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git://git.infradead.org/ubifs-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git.infradead.org/ubifs-2.6: UBI: do not select KALLSYMS_ALL UBI: do not compare array with NULL UBI: check if we are in RO mode in the erase routine UBIFS: fix debugging failure in dbg_check_space_info UBIFS: fix error path in dbg_debugfs_init_fs UBIFS: unify error path dbg_debugfs_init_fs UBIFS: do not select KALLSYMS_ALL UBIFS: fix assertion warnings UBIFS: fix oops on error path in read_pnode UBIFS: do not read flash unnecessarily
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git://git.profusion.mobi/users/lucas/linux-2.6由 Linus Torvalds 提交于
* 'for-linus2' of git://git.profusion.mobi/users/lucas/linux-2.6: Fix common misspellings
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: Add support for CH Pro Throttle HID: hid-magicmouse: Increase evdev buffer size HID: add FF support for Logitech G25/G27 HID: roccat: Add support for wireless variant of Pyra HID: Fix typo Keyoutch -> Keytouch HID: add support for Skycable 0x3f07 wireless presenter
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由 Youquan Song 提交于
Fix build failure issue for hv_mouse When build 2.6.39-rc1 kernel, it will be blocked at build hv_mouse. drivers/staging/hv/hv_mouse.c: In function ‘ReleaseInputDevice’: drivers/staging/hv/hv_mouse.c:293: error: implicit declaration of function ‘udelay’ Signed-off-by: NYouquan Song <youquan.song@intel.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 07 4月, 2011 4 次提交
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由 Linus Torvalds 提交于
The normal mmap paths all avoid creating a mapping where the pgoff inside the mapping could wrap around due to overflow. However, an expanding mremap() can take such a non-wrapping mapping and make it bigger and cause a wrapping condition. Noticed by Robert Swiecki when running a system call fuzzer, where it caused a BUG_ON() due to terminally confusing the vma_prio_tree code. A vma dumping patch by Hugh then pinpointed the crazy wrapped case. Reported-and-tested-by: NRobert Swiecki <robert@swiecki.net> Acked-by: NHugh Dickins <hughd@google.com> Cc: stable@kernel.org Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Takashi Iwai 提交于
Fixes the kernel warnings with IDT codecs like hda_codec: connection list not available for 0x1e Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 David Henningsson 提交于
In cases where there is only one internal mic connected to ADC 0x11, alc275_setup_dual_adc won't handle the case, so we need to add the ADC node to the array of candidates. Cc: stable@kernel.org BugLink: http://bugs.launchpad.net/bugs/752792 Reported-by: Vincenzo Pii Signed-off-by: NDavid Henningsson <david.henningsson@canonical.com> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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由 Aaron Plattner 提交于
The MCP7x hardware computes the audio infoframe channel count automatically, but requires the audio driver to set the audio infoframe checksum manually via the Nv_VERB_SET_Info_Frame_Checksum control verb. When audio starts playing, nvhdmi_8ch_7x_pcm_prepare sets the checksum to (0x71 - chan - chanmask). For example, for 2ch audio, chan == 1 and chanmask == 0 so the checksum is set to 0x70. When audio playback finishes and the device is closed, nvhdmi_8ch_7x_pcm_close resets the channel formats, causing the channel count to revert to 8ch. Since the checksum is not reset, the hardware starts generating audio infoframes with invalid checksums. This causes some displays to blank the video. Fix this by updating the checksum and channel mask when the device is closed and also when it is first initialized. In addition, make sure that the channel mask is appropriate for an 8ch infoframe by setting it to 0x13 (FL FR LFE FC RL RR RLC RRC). Signed-off-by: NAaron Plattner <aplattner@nvidia.com> Acked-by: NStephen Warren <swarren@nvidia.com> Cc: <stable@kernel.org> Signed-off-by: NTakashi Iwai <tiwai@suse.de>
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