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| author |   Huacai Chen <chenhuacai@loongson.cn> | 2022-05-31 18:04:11 +0800 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2022-06-03 20:09:28 +0800 |
| commit | 628c3bb40e9a8cefc0a6fde28b7b66bfe46d1dc2 (patch) | |
| tree | 37f8cf6768e1bab484836d7c2e456475efc7262a /arch/loongarch/include/asm/setup.h | |
| parent | LoongArch: Add other common headers (diff) | |
| download | wireguard-linux-628c3bb40e9a8cefc0a6fde28b7b66bfe46d1dc2.tar.xz wireguard-linux-628c3bb40e9a8cefc0a6fde28b7b66bfe46d1dc2.zip | |
LoongArch: Add boot and setup routines
Add basic boot, setup and reset routines for LoongArch. Now, LoongArch
machines use UEFI-based firmware. The firmware passes configuration
information to the kernel via ACPI and DMI/SMBIOS.
Currently an existing interface between the kernel and the bootloader
is implemented. Kernel gets 2 values from the bootloader, passed in
registers a0 and a1; a0 is an "EFI boot flag" distinguishing UEFI and
non-UEFI firmware, while a1 is a pointer to an FDT with systable,
memmap, cmdline and initrd information.
The standard UEFI boot protocol (EFISTUB) will be added later.
Cc: linux-efi@vger.kernel.org
Cc: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Co-developed-by: Yun Liu <liuyun@loongson.cn>
Signed-off-by: Yun Liu <liuyun@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Diffstat (limited to 'arch/loongarch/include/asm/setup.h')
| -rw-r--r-- | arch/loongarch/include/asm/setup.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/loongarch/include/asm/setup.h b/arch/loongarch/include/asm/setup.h new file mode 100644 index 000000000000..6d7d2a3e23dd --- /dev/null +++ b/arch/loongarch/include/asm/setup.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2020-2022 Loongson Technology Corporation Limited + */ + +#ifndef _LOONGARCH_SETUP_H +#define _LOONGARCH_SETUP_H + +#include <linux/types.h> +#include <uapi/asm/setup.h> + +#define VECSIZE 0x200 + +extern unsigned long eentry; +extern unsigned long tlbrentry; +extern void cpu_cache_init(void); +extern void per_cpu_trap_init(int cpu); +extern void set_handler(unsigned long offset, void *addr, unsigned long len); +extern void set_merr_handler(unsigned long offset, void *addr, unsigned long len); + +#endif /* __SETUP_H */ |