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Atmosphere/exosphere/src/interrupt.h

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/*
* Copyright (c) 2018 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
*/
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#ifndef EXOSPHERE_INTERRUPT_H
#define EXOSPHERE_INTERRUPT_H
#include <stdint.h>
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#include "memory_map.h"
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/* Exosphere driver for the Tegra X1 GIC-400 registers. */
#define MAX_REGISTERED_INTERRUPTS 4
#define INTERRUPT_ID_SECURITY_ENGINE 0x5A
#define INTERRUPT_ID_ACTIVITY_MONITOR_4X 0x4D
#define INTERRUPT_ID_1C 0x1C
#define INTERRUPT_ID_USER_SECURITY_ENGINE 0x2C
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static inline uintptr_t get_gicd_base(void) {
return MMIO_GET_DEVICE_ADDRESS(MMIO_DEVID_GICD);
}
static inline uintptr_t get_gicc_base(void) {
return MMIO_GET_DEVICE_ADDRESS(MMIO_DEVID_GICC);
}
#define GICD_BASE (get_gicd_base())
#define GICC_BASE (get_gicc_base())
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#define GICD_CTLR MAKE_REG32(GICD_BASE + 0x000ull)
#define GICD_IGROUPR ((volatile uint32_t *)(GICD_BASE + 0x080ull))
#define GICD_ISENABLER ((volatile uint32_t *)(GICD_BASE + 0x100ull))
#define GICD_ISPENDR ((volatile uint32_t *)(GICD_BASE + 0x200ull))
#define GICD_IPRIORITYR ((volatile uint8_t *)(GICD_BASE + 0x400ull))
#define GICD_ITARGETSR ((volatile uint8_t *)(GICD_BASE + 0x800ull))
#define GICD_ICFGR ((volatile uint32_t *)(GICD_BASE + 0xC00ull))
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#define GICC_CTLR MAKE_REG32(GICC_BASE + 0x0000ull)
#define GICC_PMR MAKE_REG32(GICC_BASE + 0x0004ull)
#define GICC_BPR MAKE_REG32(GICC_BASE + 0x0008ull)
#define GICC_IAR MAKE_REG32(GICC_BASE + 0x000CULL)
#define GICC_EOIR MAKE_REG32(GICC_BASE + 0x0010ull)
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#define GIC_PRI_HIGHEST_SECURE 0x00
#define GIC_PRI_HIGHEST_NONSECURE 0x80
#define GIC_GROUP_SECURE 0
#define GIC_GROUP_NONSECURE 1
/* To be called by FIQ handler. */
void handle_registered_interrupt(void);
/* Initializes the GIC. This must be called during wakeup. */
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void intr_initialize_gic(void);
void intr_initialize_gic_nonsecure(void);
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void intr_prepare_gicc_for_sleep(void);
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void intr_register_handler(unsigned int id, void (*handler)(void));
void intr_set_group(unsigned int id, int group);
void intr_set_pending(unsigned int id);
void intr_set_priority(unsigned int id, uint8_t priority);
void intr_set_cpu_mask(unsigned int id, uint8_t mask);
void intr_set_edge_level(unsigned int id, int edge_level);
void intr_set_enabled(unsigned int id, int enabled);
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#endif