/*
 * \brief   Platform implementations specific for base-hw and Raspberry Pi3
 * \author  Stefan Kalkowski
 * \date    2019-05-11
 */

/*
 * Copyright (C) 2019 Genode Labs GmbH
 *
 * This file is part of the Genode OS framework, which is distributed
 * under the terms of the GNU Affero General Public License version 3.
 */

#include <platform.h>

/**
 * Leave out the first page (being 0x0) from bootstraps RAM allocator,
 * some code does not feel happy with addresses being zero
 */
Bootstrap::Platform::Board::Board()
: early_ram_regions(Memory_region { ::Board::RAM_BASE + 0x1000,
                                    ::Board::RAM_SIZE - 0x1000 }),
  late_ram_regions(Memory_region { ::Board::RAM_BASE, 0x1000 }),
  core_mmio(Memory_region { ::Board::UART_BASE, ::Board::UART_SIZE },
            Memory_region { ::Board::LOCAL_IRQ_CONTROLLER_BASE,
                            ::Board::LOCAL_IRQ_CONTROLLER_SIZE },
            Memory_region { ::Board::IRQ_CONTROLLER_BASE,
                            ::Board::IRQ_CONTROLLER_SIZE }) {}


extern unsigned int _crt0_qemu_start_secondary_cpus;

void Board::Cpu::wake_up_all_cpus(void * ip)
{
	/* start when in qemu */
	_crt0_qemu_start_secondary_cpus = 1;

	/* start on real hardware */
	*((void * volatile *) 0xe0) = ip;   /* cpu 1 */
	*((void * volatile *) 0xe8) = ip;   /* cpu 2 */
	*((void * volatile *) 0xf0) = ip;   /* cpu 3 */

	/* send event for both variants */
	asm volatile("dsb #15; sev");
}