From 2bc6b218717b9d08f466f88209251d54bc09b207 Mon Sep 17 00:00:00 2001 From: Fuad Tabba Date: Tue, 22 Sep 2026 19:14:30 +0100 Subject: arm64/boot: Disable trapping of PMZR_EL0 writes to EL2 __init_el2_fgt2() writes one mask to both HDFGRTR2_EL2 and HDFGWTR2_EL2. PMZR_EL0 is write-only, so its trap bit, nPMZR_EL0, exists only in HDFGWTR2_EL2 and is therefore never set: a PMZR_EL0 write from the host traps to EL2, where the nVHE hypervisor has no handler and BUG()s. The kernel never writes PMZR_EL0, but kernel.perf_user_access=1 has the PMU driver set PMUSERENR_EL0.UEN for a task with a user-read event, so a write from EL0 reaches the trap and takes the host down without a panic message. Accumulate the HDFGWTR2_EL2 bits separately, as __init_el2_fgt() already does for HDFGWTR_EL2, and set nPMZR_EL0 with the other FEAT_PMUv3p9 bits. Fixes: 858c7bfcb35e1 ("arm64/boot: Enable EL2 requirements for FEAT_PMUv3p9") Cc: stable@vger.kernel.org Signed-off-by: Fuad Tabba Reviewed-by: Anshuman Khandual Reviewed-by: Oliver Upton Signed-off-by: Will Deacon --- include/sound/hdmi-codec.h | 140 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 140 insertions(+) create mode 100644 include/sound/hdmi-codec.h (limited to 'include/sound/hdmi-codec.h') diff --git a/include/sound/hdmi-codec.h b/include/sound/hdmi-codec.h new file mode 100644 index 000000000..273f4c36f --- /dev/null +++ b/include/sound/hdmi-codec.h @@ -0,0 +1,140 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * hdmi-codec.h - HDMI Codec driver API + * + * Copyright (C) 2014 Texas Instruments Incorporated - https://www.ti.com + * + * Author: Jyri Sarha + */ + +#ifndef __HDMI_CODEC_H__ +#define __HDMI_CODEC_H__ + +#include +#include +#include +#include +#include + +/* + * Protocol between ASoC cpu-dai and HDMI-encoder + */ +struct hdmi_codec_daifmt { + enum { + HDMI_I2S, + HDMI_RIGHT_J, + HDMI_LEFT_J, + HDMI_DSP_A, + HDMI_DSP_B, + HDMI_AC97, + HDMI_SPDIF, + } fmt; + unsigned int bit_clk_inv:1; + unsigned int frame_clk_inv:1; + unsigned int bit_clk_provider:1; + unsigned int frame_clk_provider:1; + /* bit_fmt could be standard PCM format or + * IEC958 encoded format. ALSA IEC958 plugin will pass + * IEC958_SUBFRAME format to the underneath driver. + */ + snd_pcm_format_t bit_fmt; +}; + +/* + * HDMI audio parameters + */ +struct hdmi_codec_params { + struct hdmi_audio_infoframe cea; + struct snd_aes_iec958 iec; + int sample_rate; + int sample_width; + int channels; +}; + +typedef void (*hdmi_codec_plugged_cb)(struct device *dev, + bool plugged); + +struct hdmi_codec_pdata; +struct hdmi_codec_ops { + /* + * Called when ASoC starts an audio stream setup. + * Optional + */ + int (*audio_startup)(struct device *dev, void *data); + + /* + * Configures HDMI-encoder for audio stream. + * Having either prepare or hw_params is mandatory. + */ + int (*hw_params)(struct device *dev, void *data, + struct hdmi_codec_daifmt *fmt, + struct hdmi_codec_params *hparms); + + /* + * Configures HDMI-encoder for audio stream. Can be called + * multiple times for each setup. + * + * Having either prepare or hw_params is mandatory. + */ + int (*prepare)(struct device *dev, void *data, + struct hdmi_codec_daifmt *fmt, + struct hdmi_codec_params *hparms); + + /* + * Shuts down the audio stream. + * Mandatory + */ + void (*audio_shutdown)(struct device *dev, void *data); + + /* + * Mute/unmute HDMI audio stream. + * Optional + */ + int (*mute_stream)(struct device *dev, void *data, + bool enable, int direction); + + /* + * Provides EDID-Like-Data from connected HDMI device. + * Optional + */ + int (*get_eld)(struct device *dev, void *data, + uint8_t *buf, size_t len); + + /* + * Getting DAI ID + * Optional + */ + int (*get_dai_id)(struct snd_soc_component *comment, + struct device_node *endpoint, + void *data); + + /* + * Hook callback function to handle connector plug event. + * Optional + */ + int (*hook_plugged_cb)(struct device *dev, void *data, + hdmi_codec_plugged_cb fn, + struct device *codec_dev); +}; + +/* HDMI codec initalization data */ +struct hdmi_codec_pdata { + const struct hdmi_codec_ops *ops; + u64 i2s_formats; + uint i2s:1; + uint no_i2s_playback:1; + uint no_i2s_capture:1; + uint spdif:1; + uint no_spdif_playback:1; + uint no_spdif_capture:1; + uint no_capture_mute:1; + int max_i2s_channels; + void *data; +}; + +struct snd_soc_component; +struct snd_soc_jack; + +#define HDMI_CODEC_DRV_NAME "hdmi-audio-codec" + +#endif /* __HDMI_CODEC_H__ */ -- cgit v1.3.1