/* * trimslice.c - TrimSlice machine ASoC driver * * Copyright (C) 2011 - CompuLab, Ltd. * Author: Mike Rapoport * * Based on code copyright/by: * Author: Stephen Warren * Copyright (C) 2010-2011 - NVIDIA, Inc. * * 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. * * This program is distributed in the hope that 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. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA * */ #include #include #include #include #include #include #include #include #include #include "../codecs/tlv320aic23.h" #include "tegra_asoc_utils.h" #define DRV_NAME "tegra-snd-trimslice" struct tegra_trimslice { struct tegra_asoc_utils_data util_data; }; static int trimslice_asoc_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *codec_dai = rtd->codec_dai; struct snd_soc_card *card = rtd->card; struct tegra_trimslice *trimslice = snd_soc_card_get_drvdata(card); int srate, mclk; int err; srate = params_rate(params); mclk = 128 * srate; err = tegra_asoc_utils_set_rate(&trimslice->util_data, srate, mclk); if (err < 0) { dev_err(card->dev, "Can't configure clocks\n"); return err; } err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk, SND_SOC_CLOCK_IN); if (err < 0) { dev_err(card->dev, "codec_dai clock not set\n"); return err; } return 0; } static const struct snd_soc_ops trimslice_asoc_ops = { .hw_params = trimslice_asoc_hw_params, }; static const struct snd_soc_dapm_widget trimslice_dapm_widgets[] = { SND_SOC_DAPM_HP("Line Out", NULL), SND_SOC_DAPM_LINE("Line In", NULL), }; static const struct snd_soc_dapm_route trimslice_audio_map[] = { {"Line Out", NULL, "LOUT"}, {"Line Out", NULL, "ROUT"}, {"LLINEIN", NULL, "Line In"}, {"RLINEIN", NULL, "Line In"}, }; static struct snd_soc_dai_link trimslice_tlv320aic23_dai = { .name = "TLV320AIC23", .stream_name = "AIC23", .codec_dai_name = "tlv320aic23-hifi", .ops = &trimslice_asoc_ops, .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS, }; static struct snd_soc_card snd_soc_trimslice = { .name = "tegra-trimslice", .owner = THIS_MODULE, .dai_link = &trimslice_tlv320aic23_dai, .num_links = 1, .dapm_widgets = trimslice_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(trimslice_dapm_widgets), .dapm_routes = trimslice_audio_map, .num_dapm_routes = ARRAY_SIZE(trimslice_audio_map), .fully_routed = true, }; static int tegra_snd_trimslice_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; struct snd_soc_card *card = &snd_soc_trimslice; struct tegra_trimslice *trimslice; int ret; trimslice = devm_kzalloc(&pdev->dev, sizeof(struct tegra_trimslice), GFP_KERNEL); if (!trimslice) { dev_err(&pdev->dev, "Can't allocate tegra_trimslice\n"); return -ENOMEM; } card->dev = &pdev->dev; platform_set_drvdata(pdev, card); snd_soc_card_set_drvdata(card, trimslice); trimslice_tlv320aic23_dai.codec_of_node = of_parse_phandle(np, "nvidia,audio-codec", 0); if (!trimslice_tlv320aic23_dai.codec_of_node) { dev_err(&pdev->dev, "Property 'nvidia,audio-codec' missing or invalid\n"); ret = -EINVAL; goto err; } trimslice_tlv320aic23_dai.cpu_of_node = of_parse_phandle(np, "nvidia,i2s-controller", 0); if (!trimslice_tlv320aic23_dai.cpu_of_node) { dev_err(&pdev->dev, "Property 'nvidia,i2s-controller' missing or invalid\n"); ret = -EINVAL; goto err; } trimslice_tlv320aic23_dai.platform_of_node = trimslice_tlv320aic23_dai.cpu_of_node; ret = tegra_asoc_utils_init(&trimslice->util_data, &pdev->dev); if (ret) goto err; ret = snd_soc_register_card(card); if (ret) { dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); goto err_fini_utils; } return 0; err_fini_utils: tegra_asoc_utils_fini(&trimslice->util_data); err: return ret; } static int tegra_snd_trimslice_remove(struct platform_device *pdev) { struct snd_soc_card *card = platform_get_drvdata(pdev); struct tegra_trimslice *trimslice = snd_soc_card_get_drvdata(card); snd_soc_unregister_card(card); tegra_asoc_utils_fini(&trimslice->util_data); return 0; } static const struct of_device_id trimslice_of_match[] = { { .compatible = "nvidia,tegra-audio-trimslice", }, {}, }; MODULE_DEVICE_TABLE(of, trimslice_of_match); static struct platform_driver tegra_snd_trimslice_driver = { .driver = { .name = DRV_NAME, .of_match_table = trimslice_of_match, }, .probe = tegra_snd_trimslice_probe, .remove = tegra_snd_trimslice_remove, }; module_platform_driver(tegra_snd_trimslice_driver); MODULE_AUTHOR("Mike Rapoport "); MODULE_DESCRIPTION("Trimslice machine ASoC driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:" DRV_NAME); -next.git/commit/sound/pci/emu10k1?id=883af14e67e8b8702b5560aa64c888c0cd0bd66c'>883af14e67e8b8702b5560aa64c888c0cd0bd66c (diff)
x86/efi: Always map the first physical page into the EFI pagetables
Commit: 129766708 ("x86/efi: Only map RAM into EFI page tables if in mixed-mode") stopped creating 1:1 mappings for all RAM, when running in native 64-bit mode. It turns out though that there are 64-bit EFI implementations in the wild (this particular problem has been reported on a Lenovo Yoga 710-11IKB), which still make use of the first physical page for their own private use, even though they explicitly mark it EFI_CONVENTIONAL_MEMORY in the memory map. In case there is no mapping for this particular frame in the EFI pagetables, as soon as firmware tries to make use of it, a triple fault occurs and the system reboots (in case of the Yoga 710-11IKB this is very early during bootup). Fix that by always mapping the first page of physical memory into the EFI pagetables. We're free to hand this page to the BIOS, as trim_bios_range() will reserve the first page and isolate it away from memory allocators anyway. Note that just reverting 129766708 alone is not enough on v4.9-rc1+ to fix the regression on affected hardware, as this commit: ab72a27da ("x86/efi: Consolidate region mapping logic") later made the first physical frame not to be mapped anyway. Reported-by: Hanka Pavlikova <hanka@ucw.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Borislav Petkov <bp@suse.de> Cc: Laura Abbott <labbott@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vojtech Pavlik <vojtech@ucw.cz> Cc: Waiman Long <waiman.long@hpe.com> Cc: linux-efi@vger.kernel.org Cc: stable@kernel.org # v4.8+ Fixes: 129766708 ("x86/efi: Only map RAM into EFI page tables if in mixed-mode") Link: http://lkml.kernel.org/r/20170127222552.22336-1-matt@codeblueprint.co.uk [ Tidied up the changelog and the comment. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'sound/pci/emu10k1')