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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mlxbf-bootctl.h (4210B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 * Copyright (c) 2019, Mellanox Technologies. All rights reserved.
      4 */
      5
      6#ifndef __MLXBF_BOOTCTL_H__
      7#define __MLXBF_BOOTCTL_H__
      8
      9/*
     10 * Request that the on-chip watchdog be enabled, or disabled, after
     11 * the next chip soft reset. This call does not affect the current
     12 * status of the on-chip watchdog. If non-zero, the argument
     13 * specifies the watchdog interval in seconds. If zero, the watchdog
     14 * will not be enabled after the next soft reset. Non-zero errors are
     15 * returned as documented below.
     16 */
     17#define MLXBF_BOOTCTL_SET_POST_RESET_WDOG	0x82000000
     18
     19/*
     20 * Query the status which has been requested for the on-chip watchdog
     21 * after the next chip soft reset. Returns the interval as set by
     22 * MLXBF_BOOTCTL_SET_POST_RESET_WDOG.
     23 */
     24#define MLXBF_BOOTCTL_GET_POST_RESET_WDOG	0x82000001
     25
     26/*
     27 * Request that a specific boot action be taken at the next soft
     28 * reset. By default, the boot action is set by external chip pins,
     29 * which are sampled on hard reset. Note that the boot action
     30 * requested by this call will persist on subsequent resets unless
     31 * this service, or the MLNX_SET_SECOND_RESET_ACTION service, is
     32 * invoked. See below for the available MLNX_BOOT_xxx parameter
     33 * values. Non-zero errors are returned as documented below.
     34 */
     35#define MLXBF_BOOTCTL_SET_RESET_ACTION		0x82000002
     36
     37/*
     38 * Return the specific boot action which will be taken at the next
     39 * soft reset. Returns the reset action (see below for the parameter
     40 * values for MLXBF_BOOTCTL_SET_RESET_ACTION).
     41 */
     42#define MLXBF_BOOTCTL_GET_RESET_ACTION		0x82000003
     43
     44/*
     45 * Request that a specific boot action be taken at the soft reset
     46 * after the next soft reset. For a specified valid boot mode, the
     47 * effect of this call is identical to that of invoking
     48 * MLXBF_BOOTCTL_SET_RESET_ACTION after the next chip soft reset; in
     49 * particular, after that reset, the action for the now next reset can
     50 * be queried with MLXBF_BOOTCTL_GET_RESET_ACTION and modified with
     51 * MLXBF_BOOTCTL_SET_RESET_ACTION. You may also specify the parameter as
     52 * MLNX_BOOT_NONE, which is equivalent to specifying that no call to
     53 * MLXBF_BOOTCTL_SET_RESET_ACTION be taken after the next chip soft reset.
     54 * This call does not affect the action to be taken at the next soft
     55 * reset. Non-zero errors are returned as documented below.
     56 */
     57#define MLXBF_BOOTCTL_SET_SECOND_RESET_ACTION	0x82000004
     58
     59/*
     60 * Return the specific boot action which will be taken at the soft
     61 * reset after the next soft reset; this will be one of the valid
     62 * actions for MLXBF_BOOTCTL_SET_SECOND_RESET_ACTION.
     63 */
     64#define MLXBF_BOOTCTL_GET_SECOND_RESET_ACTION	0x82000005
     65
     66/*
     67 * Return the fuse status of the current chip. The caller should specify
     68 * with the second argument if the state of the lifecycle fuses or the
     69 * version of secure boot fuse keys left should be returned.
     70 */
     71#define MLXBF_BOOTCTL_GET_TBB_FUSE_STATUS	0x82000006
     72
     73/* Reset eMMC by programming the RST_N register. */
     74#define MLXBF_BOOTCTL_SET_EMMC_RST_N		0x82000007
     75
     76#define MLXBF_BOOTCTL_GET_DIMM_INFO		0x82000008
     77
     78/* SMC function IDs for SiP Service queries */
     79#define MLXBF_BOOTCTL_SIP_SVC_CALL_COUNT	0x8200ff00
     80#define MLXBF_BOOTCTL_SIP_SVC_UID		0x8200ff01
     81#define MLXBF_BOOTCTL_SIP_SVC_VERSION		0x8200ff03
     82
     83/* ARM Standard Service Calls version numbers */
     84#define MLXBF_BOOTCTL_SVC_VERSION_MAJOR		0x0
     85#define MLXBF_BOOTCTL_SVC_VERSION_MINOR		0x2
     86
     87/* Number of svc calls defined. */
     88#define MLXBF_BOOTCTL_NUM_SVC_CALLS 12
     89
     90/* Valid reset actions for MLXBF_BOOTCTL_SET_RESET_ACTION. */
     91#define MLXBF_BOOTCTL_EXTERNAL	0 /* Not boot from eMMC */
     92#define MLXBF_BOOTCTL_EMMC	1 /* From primary eMMC boot partition */
     93#define MLNX_BOOTCTL_SWAP_EMMC	2 /* Swap eMMC boot partitions and reboot */
     94#define MLXBF_BOOTCTL_EMMC_LEGACY	3 /* From primary eMMC in legacy mode */
     95
     96/* Valid arguments for requesting the fuse status. */
     97#define MLXBF_BOOTCTL_FUSE_STATUS_LIFECYCLE	0 /* Return lifecycle status. */
     98#define MLXBF_BOOTCTL_FUSE_STATUS_KEYS	1 /* Return secure boot key status */
     99
    100/* Additional value to disable the MLXBF_BOOTCTL_SET_SECOND_RESET_ACTION. */
    101#define MLXBF_BOOTCTL_NONE	0x7fffffff /* Don't change next boot action */
    102
    103#endif /* __MLXBF_BOOTCTL_H__ */