source: mainline/boot/arch/ia64/src/sal.c

/*
 * Copyright (c) 2011 Jakub Jermar
 * 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.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 */

#include <arch/sal.h>
#include <arch/types.h>

static sal_ap_wakeup_desc_t *sal_ap_wakeup;

extern uint64_t pal_proc;

uint64_t sal_proc = 0;
uint64_t sal_proc_gp = 0;

void sal_system_table_parse(sal_system_table_header_t *sst)
{
        uint8_t *cur = (uint8_t *) &sst[1];
        uint16_t entry;

        for (entry = 0; entry < sst->entry_count; entry++) {
                switch ((sal_sst_type_t) *cur) {
                case SSTT_ENTRYPOINT_DESC:
                        pal_proc = ((sal_entrypoint_desc_t *) cur)->pal_proc;
                        sal_proc = ((sal_entrypoint_desc_t *) cur)->sal_proc;
                        sal_proc_gp = ((sal_entrypoint_desc_t *) cur)->sal_proc_gp;
                        cur += sizeof(sal_entrypoint_desc_t);
                        break;
                case SSTT_MEMORY_DESC:
                        cur += sizeof(sal_memory_desc_t);
                        break;
                case SSTT_PLATFORM_FEATURES_DESC:
                        cur += sizeof(sal_platform_features_desc_t);
                        break;
                case SSTT_TR_DESC:
                        cur += sizeof(sal_tr_desc_t);
                        break;
                case SSTT_PTC_COHERENCE_DOMAIN_DESC:
                        cur += sizeof(sal_ptc_coherence_domain_desc_t);
                        break;
                case SSTT_AP_WAKEUP_DESC:
                        sal_ap_wakeup = (sal_ap_wakeup_desc_t *) cur;
                        cur += sizeof(sal_ap_wakeup_desc_t);
                        break;
                default:
                        return;
                }
        }
}

uint64_t sal_base_clock_frequency(void)
{
        uint64_t freq;

        sal_call_1_1(SAL_FREQ_BASE, 0, &freq);

        return freq;
}