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arch/arm64/kernel/entry-fpsimd.S 1.08 KB
81f7e3824   Eric Lee   Initial Release, ...
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  /*
   * FP/SIMD state saving and restoring
   *
   * Copyright (C) 2012 ARM Ltd.
   * Author: Catalin Marinas <catalin.marinas@arm.com>
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
   */
  
  #include <linux/linkage.h>
  
  #include <asm/assembler.h>
  #include <asm/fpsimdmacros.h>
  
  /*
   * Save the FP registers.
   *
   * x0 - pointer to struct fpsimd_state
   */
  ENTRY(fpsimd_save_state)
  	fpsimd_save x0, 8
  	ret
  ENDPROC(fpsimd_save_state)
  
  /*
   * Load the FP registers.
   *
   * x0 - pointer to struct fpsimd_state
   */
  ENTRY(fpsimd_load_state)
  	fpsimd_restore x0, 8
  	ret
  ENDPROC(fpsimd_load_state)