6b5bc77c9b
Stefan thinks they don't add value. Command used: sed -i -e '/file is part of /d' $(git grep "file is part of " |egrep ":( */\*.*\*/\$|#|;#|-- | *\* )" | cut -d: -f1 |grep -v crossgcc |grep -v gcov | grep -v /elf.h |grep -v nvramtool) The exceptions are for: - crossgcc (patch file) - gcov (imported from gcc) - elf.h (imported from GNU's libc) - nvramtool (more complicated header) The removed lines are: - fmt.Fprintln(f, "/* This file is part of the coreboot project. */") -# This file is part of a set of unofficial pre-commit hooks available -/* This file is part of coreboot */ -# This file is part of msrtool. -/* This file is part of msrtool. */ - * This file is part of ncurses, designed to be appended after curses.h.in -/* This file is part of pgtblgen. */ - * This file is part of the coreboot project. - /* This file is part of the coreboot project. */ -# This file is part of the coreboot project. -# This file is part of the coreboot project. -## This file is part of the coreboot project. --- This file is part of the coreboot project. -/* This file is part of the coreboot project */ -/* This file is part of the coreboot project. */ -;## This file is part of the coreboot project. -# This file is part of the coreboot project. It originated in the - * This file is part of the coreinfo project. -## This file is part of the coreinfo project. - * This file is part of the depthcharge project. -/* This file is part of the depthcharge project. */ -/* This file is part of the ectool project. */ - * This file is part of the GNU C Library. - * This file is part of the libpayload project. -## This file is part of the libpayload project. -/* This file is part of the Linux kernel. */ -## This file is part of the superiotool project. -/* This file is part of the superiotool project */ -/* This file is part of uio_usbdebug */ Change-Id: I82d872b3b337388c93d5f5bf704e9ee9e53ab3a9 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41194 Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
77 lines
2.1 KiB
C
77 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#include <program_loading.h>
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#include <stdint.h>
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#include <arch/boot.h>
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#include <arch/encoding.h>
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#include <arch/smp/atomic.h>
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#include <console/console.h>
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#include <vm.h>
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/* Run OpenSBI and let OpenSBI hand over control to the payload */
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void run_payload_opensbi(struct prog *prog, void *fdt, struct prog *opensbi, int payload_mode)
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{
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int hart_id = read_csr(mhartid);
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uintptr_t status = read_csr(mstatus);
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status = INSERT_FIELD(status, MSTATUS_MPIE, 0);
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/*
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* In case of OpenSBI we always run it in M-Mode.
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* OpenSBI will switch to payload_mode when done.
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*/
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status = INSERT_FIELD(status, MSTATUS_MPP, PRV_M);
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/* Trap vector base address point to the payload */
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write_csr(mtvec, prog_entry(opensbi));
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/* disable M-Mode interrupt */
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write_csr(mie, 0);
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write_csr(mstatus, status);
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run_opensbi(hart_id, fdt, prog_entry(opensbi), prog_entry(prog), payload_mode);
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}
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/* Runs the payload without OpenSBI integration */
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void run_payload(struct prog *prog, void *fdt, int payload_mode)
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{
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void (*doit)(int hart_id, void *fdt) = prog_entry(prog);
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int hart_id = read_csr(mhartid);
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uintptr_t status = read_csr(mstatus);
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status = INSERT_FIELD(status, MSTATUS_MPIE, 0);
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switch (payload_mode) {
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case RISCV_PAYLOAD_MODE_U:
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status = INSERT_FIELD(status, MSTATUS_MPP, PRV_U);
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/* Trap vector base address point to the payload */
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write_csr(utvec, doit);
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/* disable U-Mode interrupt */
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write_csr(uie, 0);
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break;
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case RISCV_PAYLOAD_MODE_S:
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status = INSERT_FIELD(status, MSTATUS_MPP, PRV_S);
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/* Trap vector base address point to the payload */
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write_csr(stvec, doit);
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/* disable S-Mode interrupt */
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write_csr(sie, 0);
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/* disable MMU */
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write_csr(satp, 0);
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break;
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case RISCV_PAYLOAD_MODE_M:
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status = INSERT_FIELD(status, MSTATUS_MPP, PRV_M);
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/* Trap vector base address point to the payload */
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write_csr(mtvec, doit);
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/* disable M-Mode interrupt */
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write_csr(mie, 0);
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break;
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default:
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die("wrong privilege level for payload");
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break;
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}
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write_csr(mstatus, status);
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write_csr(mepc, doit);
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asm volatile(
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"mv a0, %0\n\t"
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"mv a1, %1\n\t"
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"mret" ::"r"(hart_id),
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"r"(fdt)
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: "a0", "a1");
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}
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