6403167d29
Instead of writing out '__attribute__((weak))' use a shorter form. Change-Id: If418a1d55052780077febd2d8f2089021f414b91 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/25767 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Justin TerAvest <teravest@chromium.org>
85 lines
2 KiB
C
85 lines
2 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright 2013 Google Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <arch/cache.h>
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#include <arch/lib_helpers.h>
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#include <arch/stages.h>
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#include <arch/transition.h>
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#include <arm_tf.h>
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#include <cbmem.h>
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#include <compiler.h>
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#include <console/console.h>
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#include <program_loading.h>
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#include <rules.h>
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#include <string.h>
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static void run_payload(struct prog *prog)
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{
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void (*doit)(void *);
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void *arg;
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doit = prog_entry(prog);
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arg = prog_entry_arg(prog);
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u64 payload_spsr = get_eret_el(EL2, SPSR_USE_L);
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if (IS_ENABLED(CONFIG_ARM64_USE_ARM_TRUSTED_FIRMWARE))
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arm_tf_run_bl31((u64)doit, (u64)arg, payload_spsr);
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else {
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uint8_t current_el = get_current_el();
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cache_sync_instructions();
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printk(BIOS_SPEW, "entry = %p\n", doit);
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/* If current EL is not EL3, jump to payload at same EL. */
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if (current_el != EL3)
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doit(arg);
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else {
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/* If current EL is EL3, we transition to payload in EL2. */
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struct exc_state exc_state;
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memset(&exc_state, 0, sizeof(exc_state));
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exc_state.elx.spsr = payload_spsr;
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transition_with_entry(doit, arg, &exc_state);
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}
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}
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}
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void arch_prog_run(struct prog *prog)
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{
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void (*doit)(void *);
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void *arg;
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if (ENV_RAMSTAGE && prog_type(prog) == PROG_PAYLOAD) {
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run_payload(prog);
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return;
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}
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doit = prog_entry(prog);
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arg = prog_entry_arg(prog);
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doit(prog_entry_arg(prog));
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}
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int arch_supports_bounce_buffer(void)
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{
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return 0;
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}
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/* Generic stage entry point. Can be overridden by board/SoC if needed. */
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__weak void stage_entry(void)
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{
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main();
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}
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