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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tegra186-hsp.h (1180B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 * This header provides constants for binding nvidia,tegra186-hsp.
      4 */
      5
      6#ifndef _DT_BINDINGS_MAILBOX_TEGRA186_HSP_H
      7#define _DT_BINDINGS_MAILBOX_TEGRA186_HSP_H
      8
      9/*
     10 * These define the type of mailbox that is to be used (doorbell, shared
     11 * mailbox, shared semaphore or arbitrated semaphore).
     12 */
     13#define TEGRA_HSP_MBOX_TYPE_DB 0x0
     14#define TEGRA_HSP_MBOX_TYPE_SM 0x1
     15#define TEGRA_HSP_MBOX_TYPE_SS 0x2
     16#define TEGRA_HSP_MBOX_TYPE_AS 0x3
     17
     18/*
     19 * These define the types of shared mailbox supported based on data size.
     20 */
     21#define TEGRA_HSP_MBOX_TYPE_SM_128BIT (1 << 8)
     22
     23/*
     24 * These defines represent the bit associated with the given master ID in the
     25 * doorbell registers.
     26 */
     27#define TEGRA_HSP_DB_MASTER_CCPLEX 17
     28#define TEGRA_HSP_DB_MASTER_BPMP 19
     29
     30/*
     31 * Shared mailboxes are unidirectional, so the direction needs to be specified
     32 * in the device tree.
     33 */
     34#define TEGRA_HSP_SM_MASK 0x00ffffff
     35#define TEGRA_HSP_SM_FLAG_RX (0 << 31)
     36#define TEGRA_HSP_SM_FLAG_TX (1 << 31)
     37
     38#define TEGRA_HSP_SM_RX(x) (TEGRA_HSP_SM_FLAG_RX | ((x) & TEGRA_HSP_SM_MASK))
     39#define TEGRA_HSP_SM_TX(x) (TEGRA_HSP_SM_FLAG_TX | ((x) & TEGRA_HSP_SM_MASK))
     40
     41#endif