common/include/linux/mali_hw_access.h

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 *
 * (C) COPYRIGHT 2023-2024 ARM Limited. All rights reserved.
 *
 * This program is free software and is provided to you under the terms of the
 * GNU General Public License version 2 as published by the Free Software
 * Foundation, and any use by you of this program is subject to the terms
 * of such GNU license.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you can access it online at
 * http://www.gnu.org/licenses/gpl-2.0.html.
 *
 */

#ifndef _MALI_HW_ACCESS_H_
#define _MALI_HW_ACCESS_H_

#include <asm/arch_timer.h>
#include <linux/io.h>


#define mali_readl(addr) readl(addr)

#define mali_writel(val, addr) writel(val, addr)

#define mali_ioremap(addr, size) ioremap(addr, size)

#define mali_iounmap(addr) iounmap(addr)

#define mali_arch_timer_get_cntfrq() arch_timer_get_cntfrq()


#define mali_readq(addr) ((u64)mali_readl(addr) | ((u64)mali_readl(addr + 4) << 32))

static inline u64 mali_readq_coherent(const void __iomem *addr)
{
	u32 hi1, hi2, lo;

	do {
		hi1 = mali_readl(addr + 4);
		lo = mali_readl(addr);
		hi2 = mali_readl(addr + 4);
	} while (hi1 != hi2);

	return lo | (((u64)hi1) << 32);
}

#define mali_writeq(val, addr)                                \
	do {                                                  \
		u64 __val = (u64)val;                         \
		mali_writel((u32)(__val & 0xFFFFFFFF), addr); \
		mali_writel((u32)(__val >> 32), addr + 4);    \
	} while (0)

#endif /* _MALI_HW_ACCESS_H_ */