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/*
* Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of ARM nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __GIC_V3_H__
#define __GIC_V3_H__
#include <mmio.h>
#include <stdint.h>
/* GICv3 Re-distributor interface registers & shifts */
#define GICR_PCPUBASE_SHIFT 0x11
#define GICR_TYPER 0x08
#define GICR_WAKER 0x14
/* GICR_WAKER bit definitions */
#define WAKER_CA (1UL << 2)
#define WAKER_PS (1UL << 1)
/* GICR_TYPER bit definitions */
#define GICR_TYPER_AFF_SHIFT 32
#define GICR_TYPER_AFF_MASK 0xffffffff
#define GICR_TYPER_LAST (1UL << 4)
/* GICv3 ICC_SRE register bit definitions*/
#define ICC_SRE_EN (1UL << 3)
#define ICC_SRE_SRE (1UL << 0)
/*******************************************************************************
* GICv3 defintions
******************************************************************************/
#define GICV3_AFFLVL_MASK 0xff
#define GICV3_AFF0_SHIFT 0
#define GICV3_AFF1_SHIFT 8
#define GICV3_AFF2_SHIFT 16
#define GICV3_AFF3_SHIFT 24
#define GICV3_AFFINITY_MASK 0xffffffff
/*******************************************************************************
* Function prototypes
******************************************************************************/
uintptr_t gicv3_get_rdist(uintptr_t gicr_base, uint64_t mpidr);
unsigned int read_icc_sre_el1(void);
unsigned int read_icc_sre_el2(void);
unsigned int read_icc_sre_el3(void);
void write_icc_sre_el1(unsigned int);
void write_icc_sre_el2(unsigned int);
void write_icc_sre_el3(unsigned int);
void write_icc_pmr_el1(unsigned int);
/*******************************************************************************
* GIC Redistributor interface accessors
******************************************************************************/
static inline uint32_t gicr_read_waker(uintptr_t base)
{
return mmio_read_32(base + GICR_WAKER);
}
static inline void gicr_write_waker(uintptr_t base, uint32_t val)
{
mmio_write_32(base + GICR_WAKER, val);
}
static inline uint64_t gicr_read_typer(uintptr_t base)
{
return mmio_read_64(base + GICR_TYPER);
}
#endif /* __GIC_V3_H__ */