Commit 7544a86e authored by Mao Minkai's avatar Mao Minkai Committed by guzitao
Browse files

sw64: add EFI support 

Sunway inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I8Y8CY



--------------------------------

Add basic EFI support for SW64.

Signed-off-by: default avatarMao Minkai <maominkai@wxiat.com>
Reviewed-by: default avatarHe Sheng <hesheng@wxiat.com>
Signed-off-by: default avatarGu Zitao <guzitao@wxiat.com>
parent 2dfd918e

arch/sw_64/include/asm/dmi.h

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/* SPDX-License-Identifier: GPL-2.0 */

/*

 * arch/sw_64/include/asm/dmi.h

 *

 * Copyright (C) 2019 Deepin Limited.

 * Porting by: Deepin Kernel Team (kernel@deepin.com)

 *

 * based on arch/x864/include/asm/dmi.h

 *

 * This file is subject to the terms and conditions of the GNU General Public

 * License.  See the file "COPYING" in the main directory of this archive

 * for more details.

 */



#ifndef _ASM_SW64_DMI_H

#define _ASM_SW64_DMI_H



#include <linux/io.h>

#include <linux/slab.h>

#include <asm/io.h>

#include <asm/early_ioremap.h>



/* Use early IO mappings for DMI because it's initialized early */

#define dmi_early_remap(x, l)		early_ioremap(x, l)

#define dmi_early_unmap(x, l)		early_iounmap(x, l)

#define dmi_remap(x, l)			early_ioremap(x, l)

#define dmi_unmap(x)			early_iounmap(x, 0)

#define dmi_alloc(l)			kzalloc(l, GFP_KERNEL)



#endif /* _ASM_SW64_DMI_H */

arch/sw_64/include/asm/efi.h

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/* SPDX-License-Identifier: GPL-2.0 */

#ifndef _ASM_SW64_EFI_H

#define _ASM_SW64_EFI_H



#include <asm/io.h>

#include <asm/early_ioremap.h>

#ifdef CONFIG_EFI

extern void efi_init(void);

extern unsigned long entSuspend;



#define SLEEP_ENTRY_GUID        EFI_GUID(0x59cb76bb, 0x9c3a, 0x4c8f, 0xbd, 0x5c, 0xc0, 0x0f, 0x20, 0x61, 0x18, 0x4b)



#else

#define efi_init()

#define efi_idmap_init()

#endif



#define arch_efi_call_virt_setup()

#define arch_efi_call_virt_teardown()



#define ARCH_EFI_IRQ_FLAGS_MASK		0x00000001



/* arch specific definitions used by the stub code */



/*

 * AArch64 requires the DTB to be 8-byte aligned in the first 512MiB from

 * start of kernel and may not cross a 2MiB boundary. We set alignment to

 * 2MiB so we know it won't cross a 2MiB boundary.

 */

#define EFI_FDT_ALIGN	SZ_2M   /* used by allocate_new_fdt_and_exit_boot() */

#define MAX_FDT_OFFSET	SZ_512M



#define efi_call_early(f, ...) sys_table_arg->boottime->f(__VA_ARGS__)



#endif /* _ASM_SW64_EFI_H */