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kernel/linux-rt-4.4.41/arch/mips/include/asm/mach-loongson64/kernel-entry-init.h 1.17 KB
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  /*
   * 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.
   *
   * Copyright (C) 2005 Embedded Alley Solutions, Inc
   * Copyright (C) 2005 Ralf Baechle (ralf@linux-mips.org)
   * Copyright (C) 2009 Jiajie Chen (chenjiajie@cse.buaa.edu.cn)
   * Copyright (C) 2012 Huacai Chen (chenhc@lemote.com)
   */
  #ifndef __ASM_MACH_LOONGSON64_KERNEL_ENTRY_H
  #define __ASM_MACH_LOONGSON64_KERNEL_ENTRY_H
  
  /*
   * Override macros used in arch/mips/kernel/head.S.
   */
  	.macro	kernel_entry_setup
  #ifdef CONFIG_CPU_LOONGSON3
  	.set	push
  	.set	mips64
  	/* Set LPA on LOONGSON3 config3 */
  	mfc0	t0, $16, 3
  	or	t0, (0x1 << 7)
  	mtc0	t0, $16, 3
  	/* Set ELPA on LOONGSON3 pagegrain */
  	li	t0, (0x1 << 29)
  	mtc0	t0, $5, 1
  	_ehb
  	.set	pop
  #endif
  	.endm
  
  /*
   * Do SMP slave processor setup.
   */
  	.macro	smp_slave_setup
  #ifdef CONFIG_CPU_LOONGSON3
  	.set	push
  	.set	mips64
  	/* Set LPA on LOONGSON3 config3 */
  	mfc0	t0, $16, 3
  	or	t0, (0x1 << 7)
  	mtc0	t0, $16, 3
  	/* Set ELPA on LOONGSON3 pagegrain */
  	li	t0, (0x1 << 29)
  	mtc0	t0, $5, 1
  	_ehb
  	.set	pop
  #endif
  	.endm
  
  #endif /* __ASM_MACH_LOONGSON64_KERNEL_ENTRY_H */