/*
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* Copyright (C) 2010, 2012-2014, 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_specific.h
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* Defines per-OS Kernel level specifics, such as unusual workarounds for
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* certain OSs.
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*/
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#ifndef __MALI_OSK_SPECIFIC_H__
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#define __MALI_OSK_SPECIFIC_H__
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#include <linux/uaccess.h>
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#include <linux/platform_device.h>
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#include <linux/gfp.h>
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#include <linux/hardirq.h>
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#include <linux/uaccess.h>
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#include <linux/syscalls.h>
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#include "mali_osk_types.h"
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#include "mali_kernel_linux.h"
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#define MALI_STATIC_INLINE static inline
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#define MALI_NON_STATIC_INLINE inline
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typedef struct dma_pool *mali_dma_pool;
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typedef u32 mali_dma_addr;
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#if MALI_ENABLE_CPU_CYCLES
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/* Reads out the clock cycle performance counter of the current cpu.
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It is useful for cost-free (2 cycle) measuring of the time spent
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in a code path. Sample before and after, the diff number of cycles.
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When the CPU is idle it will not increase this clock counter.
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It means that the counter is accurate if only spin-locks are used,
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but mutexes may lead to too low values since the cpu might "idle"
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waiting for the mutex to become available.
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The clock source is configured on the CPU during mali module load,
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but will not give useful output after a CPU has been power cycled.
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It is therefore important to configure the system to not turn of
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the cpu cores when using this functionallity.*/
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static inline unsigned int mali_get_cpu_cyclecount(void)
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{
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unsigned int value;
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/* Reading the CCNT Register - CPU clock counter */
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asm volatile("MRC p15, 0, %0, c9, c13, 0\t\n": "=r"(value));
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return value;
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}
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void mali_init_cpu_time_counters(int reset, int enable_divide_by_64);
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#endif
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MALI_STATIC_INLINE u32 _mali_osk_copy_from_user(void *to, void *from, u32 n)
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{
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return (u32)copy_from_user(to, from, (unsigned long)n);
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}
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MALI_STATIC_INLINE mali_bool _mali_osk_in_atomic(void)
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{
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return in_atomic();
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}
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#define _mali_osk_put_user(x, ptr) put_user(x, ptr)
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#endif /* __MALI_OSK_SPECIFIC_H__ */
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