/*
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* Copyright (C) 2010-2014, 2016-2017 ARM Limited. All rights reserved.
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*
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* This program is free software and is provided to you under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence.
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*
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* A copy of the licence is included with the program, and can also be obtained from Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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/**
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* @file mali_osk_misc.c
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* Implementation of the OS abstraction layer for the kernel device driver
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*/
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#include <linux/kernel.h>
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#include <linux/uaccess.h>
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#include <asm/cacheflush.h>
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#include <linux/sched.h>
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#include <linux/seq_file.h>
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#include <linux/module.h>
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#include "mali_osk.h"
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#if !defined(CONFIG_MALI_QUIET)
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void _mali_osk_dbgmsg(const char *fmt, ...)
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{
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va_list args;
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va_start(args, fmt);
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vprintk(fmt, args);
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va_end(args);
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}
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#endif /* !defined(CONFIG_MALI_QUIET) */
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u32 _mali_osk_snprintf(char *buf, u32 size, const char *fmt, ...)
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{
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int res;
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va_list args;
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va_start(args, fmt);
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res = vscnprintf(buf, (size_t)size, fmt, args);
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va_end(args);
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return res;
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}
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void _mali_osk_abort(void)
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{
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/* make a simple fault by dereferencing a NULL pointer */
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dump_stack();
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*(volatile int *)0 = 0;
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}
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void _mali_osk_break(void)
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{
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_mali_osk_abort();
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}
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u32 _mali_osk_get_pid(void)
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{
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/* Thread group ID is the process ID on Linux */
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return (u32)current->tgid;
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}
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char *_mali_osk_get_comm(void)
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{
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return (char *)current->comm;
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}
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u32 _mali_osk_get_tid(void)
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{
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/* pid is actually identifying the thread on Linux */
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u32 tid = current->pid;
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/* If the pid is 0 the core was idle. Instead of returning 0 we return a special number
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* identifying which core we are on. */
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if (0 == tid) {
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tid = -(1 + raw_smp_processor_id());
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}
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return tid;
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}
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