linux/drivers/accel/habanalabs/goya/goya_security.c

// SPDX-License-Identifier: GPL-2.0

/*
 * Copyright 2016-2019 HabanaLabs, Ltd.
 * All Rights Reserved.
 */

#include "goyaP.h"
#include "../include/goya/asic_reg/goya_regs.h"

/*
 * goya_set_block_as_protected - set the given block as protected
 *
 * @hdev: pointer to hl_device structure
 * @block: block base address
 *
 */
static void goya_pb_set_block(struct hl_device *hdev, u64 base)
{ … }

static void goya_init_mme_protection_bits(struct hl_device *hdev)
{ … }

static void goya_init_dma_protection_bits(struct hl_device *hdev)
{ … }

static void goya_init_tpc_protection_bits(struct hl_device *hdev)
{ … }

/*
 * goya_init_protection_bits - Initialize protection bits for specific registers
 *
 * @hdev: pointer to hl_device structure
 *
 * All protection bits are 1 by default, means not protected. Need to set to 0
 * each bit that belongs to a protected register.
 *
 */
static void goya_init_protection_bits(struct hl_device *hdev)
{ … }

/*
 * goya_init_security - Initialize security model
 *
 * @hdev: pointer to hl_device structure
 *
 * Initialize the security model of the device
 * That includes range registers and protection bit per register
 *
 */
void goya_init_security(struct hl_device *hdev)
{ … }

void goya_ack_protection_bits_errors(struct hl_device *hdev)
{ … }