linux/drivers/misc/sgi-gru/grukdump.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * SN Platform GRU Driver
 *
 *            Dump GRU State
 *
 *  Copyright (c) 2008 Silicon Graphics, Inc.  All Rights Reserved.
 */

#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/spinlock.h>
#include <linux/uaccess.h>
#include <linux/delay.h>
#include <linux/bitops.h>
#include <asm/uv/uv_hub.h>

#include <linux/nospec.h>

#include "gru.h"
#include "grutables.h"
#include "gruhandles.h"
#include "grulib.h"

#define CCH_LOCK_ATTEMPTS …

static int gru_user_copy_handle(void __user **dp, void *s)
{ … }

static int gru_dump_context_data(void *grubase,
			struct gru_context_configuration_handle *cch,
			void __user *ubuf, int ctxnum, int dsrcnt,
			int flush_cbrs)
{ … }

static int gru_dump_tfm(struct gru_state *gru,
		void __user *ubuf, void __user *ubufend)
{ … }

static int gru_dump_tgh(struct gru_state *gru,
		void __user *ubuf, void __user *ubufend)
{ … }

static int gru_dump_context(struct gru_state *gru, int ctxnum,
		void __user *ubuf, void __user *ubufend, char data_opt,
		char lock_cch, char flush_cbrs)
{ … }

int gru_dump_chiplet_request(unsigned long arg)
{ … }