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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surface_acpi_notify.h (1091B)

      1/* SPDX-License-Identifier: GPL-2.0+ */
      2/*
      3 * Interface for Surface ACPI Notify (SAN) driver.
      4 *
      5 * Provides access to discrete GPU notifications sent from ACPI via the SAN
      6 * driver, which are not handled by this driver directly.
      7 *
      8 * Copyright (C) 2019-2020 Maximilian Luz <luzmaximilian@gmail.com>
      9 */
     10
     11#ifndef _LINUX_SURFACE_ACPI_NOTIFY_H
     12#define _LINUX_SURFACE_ACPI_NOTIFY_H
     13
     14#include <linux/notifier.h>
     15#include <linux/types.h>
     16
     17/**
     18 * struct san_dgpu_event - Discrete GPU ACPI event.
     19 * @category: Category of the event.
     20 * @target:   Target ID of the event source.
     21 * @command:  Command ID of the event.
     22 * @instance: Instance ID of the event source.
     23 * @length:   Length of the event's payload data (in bytes).
     24 * @payload:  Pointer to the event's payload data.
     25 */
     26struct san_dgpu_event {
     27	u8 category;
     28	u8 target;
     29	u8 command;
     30	u8 instance;
     31	u16 length;
     32	u8 *payload;
     33};
     34
     35int san_client_link(struct device *client);
     36int san_dgpu_notifier_register(struct notifier_block *nb);
     37int san_dgpu_notifier_unregister(struct notifier_block *nb);
     38
     39#endif /* _LINUX_SURFACE_ACPI_NOTIFY_H */