cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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local.h (1398B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 * Local helper macros and functions for HD-audio core drivers
      4 */
      5
      6#ifndef __HDAC_LOCAL_H
      7#define __HDAC_LOCAL_H
      8
      9#define get_wcaps(codec, nid) \
     10	snd_hdac_read_parm(codec, nid, AC_PAR_AUDIO_WIDGET_CAP)
     11
     12/* get the widget type from widget capability bits */
     13static inline int get_wcaps_type(unsigned int wcaps)
     14{
     15	if (!wcaps)
     16		return -1; /* invalid type */
     17	return (wcaps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
     18}
     19
     20static inline unsigned int get_wcaps_channels(u32 wcaps)
     21{
     22	unsigned int chans;
     23
     24	chans = (wcaps & AC_WCAP_CHAN_CNT_EXT) >> 13;
     25	chans = (chans + 1) * 2;
     26
     27	return chans;
     28}
     29
     30extern const struct attribute_group *hdac_dev_attr_groups[];
     31int hda_widget_sysfs_init(struct hdac_device *codec);
     32int hda_widget_sysfs_reinit(struct hdac_device *codec, hda_nid_t start_nid,
     33			    int num_nodes);
     34void hda_widget_sysfs_exit(struct hdac_device *codec);
     35
     36int snd_hdac_bus_add_device(struct hdac_bus *bus, struct hdac_device *codec);
     37void snd_hdac_bus_remove_device(struct hdac_bus *bus,
     38				struct hdac_device *codec);
     39void snd_hdac_bus_queue_event(struct hdac_bus *bus, u32 res, u32 res_ex);
     40int snd_hdac_bus_exec_verb(struct hdac_bus *bus, unsigned int addr,
     41			   unsigned int cmd, unsigned int *res);
     42
     43int snd_hdac_exec_verb(struct hdac_device *codec, unsigned int cmd,
     44		       unsigned int flags, unsigned int *res);
     45
     46#endif /* __HDAC_LOCAL_H */