/* * simone.c -- ASoC audio for Simplemachines Sim.One board * * Copyright (c) 2010 Mika Westerberg * * Based on snappercl15 machine driver by Ryan Mallon. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include #include #include #include #include #include #include #include static struct snd_soc_dai_link simone_dai = { .name = "AC97", .stream_name = "AC97 HiFi", .cpu_dai_name = "ep93xx-ac97", .codec_dai_name = "ac97-hifi", .codec_name = "ac97-codec", .platform_name = "ep93xx-ac97", }; static struct snd_soc_card snd_soc_simone = { .name = "Sim.One", .owner = THIS_MODULE, .dai_link = &simone_dai, .num_links = 1, }; static struct platform_device *simone_snd_ac97_device; static int simone_probe(struct platform_device *pdev) { struct snd_soc_card *card = &snd_soc_simone; int ret; simone_snd_ac97_device = platform_device_register_simple("ac97-codec", -1, NULL, 0); if (IS_ERR(simone_snd_ac97_device)) return PTR_ERR(simone_snd_ac97_device); card->dev = &pdev->dev; ret = snd_soc_register_card(card); if (ret) { dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret); platform_device_unregister(simone_snd_ac97_device); } return ret; } static int simone_remove(struct platform_device *pdev) { struct snd_soc_card *card = platform_get_drvdata(pdev); snd_soc_unregister_card(card); platform_device_unregister(simone_snd_ac97_device); return 0; } static struct platform_driver simone_driver = { .driver = { .name = "simone-audio", }, .probe = simone_probe, .remove = simone_remove, }; module_platform_driver(simone_driver); MODULE_DESCRIPTION("ALSA SoC Simplemachines Sim.One"); MODULE_AUTHOR("Mika Westerberg "); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:simone-audio"); mixer_quirks.c?id=d7df2443cd5f67fc6ee7c05a88e4996e8177f91b'>diff
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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2017-02-03 17:10:28 +1100
committerMichael Ellerman <mpe@ellerman.id.au>2017-02-08 23:36:29 +1100
commitd7df2443cd5f67fc6ee7c05a88e4996e8177f91b (patch)
tree098a7c0ca4fceb8a65cb1f693c9d71990388933d /sound/usb/mixer_quirks.c
parenta0615a16f7d0ceb5804d295203c302d496d8ee91 (diff)
powerpc/mm: Fix spurrious segfaults on radix with autonuma
When autonuma (Automatic NUMA balancing) marks a PTE inaccessible it clears all the protection bits but leave the PTE valid. With the Radix MMU, an attempt at executing from such a PTE will take a fault with bit 35 of SRR1 set "SRR1_ISI_N_OR_G". It is thus incorrect to treat all such faults as errors. We should pass them to handle_mm_fault() for autonuma to deal with. The case of pages that are really not executable is handled by the existing test for VM_EXEC further down. That leaves us with catching the kernel attempts at executing user pages. We can catch that earlier, even before we do find_vma. It is never valid on powerpc for the kernel to take an exec fault to begin with. So fold that test with the existing test for the kernel faulting on kernel addresses to bail out early. Fixes: 1d18ad026844 ("powerpc/mm: Detect instruction fetch denied and report") Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Acked-by: Balbir Singh <bsingharora@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'sound/usb/mixer_quirks.c')