/* * Intel Baytrail SST MAX98090 machine driver * Copyright (c) 2014, Intel Corporation. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. */ #include #include #include #include #include #include #include #include #include #include #include #include #include "../../codecs/max98090.h" struct byt_max98090_private { struct snd_soc_jack jack; }; static const struct snd_soc_dapm_widget byt_max98090_widgets[] = { SND_SOC_DAPM_HP("Headphone", NULL), SND_SOC_DAPM_MIC("Headset Mic", NULL), SND_SOC_DAPM_MIC("Int Mic", NULL), SND_SOC_DAPM_SPK("Ext Spk", NULL), }; static const struct snd_soc_dapm_route byt_max98090_audio_map[] = { {"IN34", NULL, "Headset Mic"}, {"Headset Mic", NULL, "MICBIAS"}, {"DMICL", NULL, "Int Mic"}, {"Headphone", NULL, "HPL"}, {"Headphone", NULL, "HPR"}, {"Ext Spk", NULL, "SPKL"}, {"Ext Spk", NULL, "SPKR"}, }; static const struct snd_kcontrol_new byt_max98090_controls[] = { SOC_DAPM_PIN_SWITCH("Headphone"), SOC_DAPM_PIN_SWITCH("Headset Mic"), SOC_DAPM_PIN_SWITCH("Int Mic"), SOC_DAPM_PIN_SWITCH("Ext Spk"), }; static struct snd_soc_jack_pin hs_jack_pins[] = { { .pin = "Headphone", .mask = SND_JACK_HEADPHONE, }, { .pin = "Headset Mic", .mask = SND_JACK_MICROPHONE, }, }; static struct snd_soc_jack_gpio hs_jack_gpios[] = { { .name = "hp-gpio", .idx = 0, .report = SND_JACK_HEADPHONE | SND_JACK_LINEOUT, .debounce_time = 200, }, { .name = "mic-gpio", .idx = 1, .invert = 1, .report = SND_JACK_MICROPHONE, .debounce_time = 200, }, }; static int byt_max98090_init(struct snd_soc_pcm_runtime *runtime) { int ret; struct snd_soc_card *card = runtime->card; struct byt_max98090_private *drv = snd_soc_card_get_drvdata(card); struct snd_soc_jack *jack = &drv->jack; card->dapm.idle_bias_off = true; ret = snd_soc_dai_set_sysclk(runtime->codec_dai, M98090_REG_SYSTEM_CLOCK, 25000000, SND_SOC_CLOCK_IN); if (ret < 0) { dev_err(card->dev, "Can't set codec clock %d\n", ret); return ret; } /* Enable jack detection */ ret = snd_soc_card_jack_new(runtime->card, "Headset", SND_JACK_LINEOUT | SND_JACK_HEADSET, jack, hs_jack_pins, ARRAY_SIZE(hs_jack_pins)); if (ret) return ret; return snd_soc_jack_add_gpiods(card->dev->parent, jack, ARRAY_SIZE(hs_jack_gpios), hs_jack_gpios); } static struct snd_soc_dai_link byt_max98090_dais[] = { { .name = "Baytrail Audio", .stream_name = "Audio", .cpu_dai_name = "baytrail-pcm-audio", .codec_dai_name = "HiFi", .codec_name = "i2c-193C9890:00", .platform_name = "baytrail-pcm-audio", .init = byt_max98090_init, .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS, }, }; static struct snd_soc_card byt_max98090_card = { .name = "byt-max98090", .owner = THIS_MODULE, .dai_link = byt_max98090_dais, .num_links = ARRAY_SIZE(byt_max98090_dais), .dapm_widgets = byt_max98090_widgets, .num_dapm_widgets = ARRAY_SIZE(byt_max98090_widgets), .dapm_routes = byt_max98090_audio_map, .num_dapm_routes = ARRAY_SIZE(byt_max98090_audio_map), .controls = byt_max98090_controls, .num_controls = ARRAY_SIZE(byt_max98090_controls), .fully_routed = true, }; static int byt_max98090_probe(struct platform_device *pdev) { int ret_val = 0; struct byt_max98090_private *priv; priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_ATOMIC); if (!priv) { dev_err(&pdev->dev, "allocation failed\n"); return -ENOMEM; } byt_max98090_card.dev = &pdev->dev; snd_soc_card_set_drvdata(&byt_max98090_card, priv); ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_max98090_card); if (ret_val) { dev_err(&pdev->dev, "snd_soc_register_card failed %d\n", ret_val); return ret_val; } return ret_val; } static int byt_max98090_remove(struct platform_device *pdev) { struct snd_soc_card *card = platform_get_drvdata(pdev); struct byt_max98090_private *priv = snd_soc_card_get_drvdata(card); snd_soc_jack_free_gpios(&priv->jack, ARRAY_SIZE(hs_jack_gpios), hs_jack_gpios); return 0; } static struct platform_driver byt_max98090_driver = { .probe = byt_max98090_probe, .remove = byt_max98090_remove, .driver = { .name = "byt-max98090", .pm = &snd_soc_pm_ops, }, }; module_platform_driver(byt_max98090_driver) MODULE_DESCRIPTION("ASoC Intel(R) Baytrail Machine driver"); MODULE_AUTHOR("Omair Md Abdullah, Jarkko Nikula"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:byt-max98090"); linux/net-next.git/commit/net/sunrpc/xprtrdma/rpc_rdma.c?id=d7df2443cd5f67fc6ee7c05a88e4996e8177f91b'>d7df2443cd5f67fc6ee7c05a88e4996e8177f91b (patch) tree098a7c0ca4fceb8a65cb1f693c9d71990388933d /net/sunrpc/xprtrdma/rpc_rdma.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 'net/sunrpc/xprtrdma/rpc_rdma.c')