/*
 * Copyright (c) 2015, Linaro Limited
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef VFP_PRIVATE
#define VFP_PRIVATE

#include <kernel/vfp.h>

void vfp_save_extension_regs(struct vfp_reg regs[VFP_NUM_REGS]);
void vfp_restore_extension_regs(struct vfp_reg regs[VFP_NUM_REGS]);
void vfp_clear_extension_regs(void);

#ifdef ARM32

#define FPEXC_EN	(1 << 30)

/*
 * These functions can't be implemented in inline assembly when compiling
 * for thumb mode, to make it easy always implement then in ARM assembly as
 * ordinary functions.
 */
void vfp_write_fpexc(uint32_t fpexc);
uint32_t vfp_read_fpexc(void);
void vfp_write_fpscr(uint32_t fpscr);
uint32_t vfp_read_fpscr(void);

#endif /* ARM32 */

#endif /*VFP_PRIVATE*/