1 /* SPDX-License-Identifier: BSD-2-Clause */ 2 /* 3 * Copyright (c) 2015, Linaro Limited 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright notice, 10 * this list of conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright notice, 13 * this list of conditions and the following disclaimer in the documentation 14 * and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef VFP_PRIVATE 30 #define VFP_PRIVATE 31 32 #include <kernel/vfp.h> 33 34 void vfp_save_extension_regs(struct vfp_reg regs[VFP_NUM_REGS]); 35 void vfp_restore_extension_regs(struct vfp_reg regs[VFP_NUM_REGS]); 36 void vfp_clear_extension_regs(void); 37 38 #ifdef ARM32 39 40 #define FPEXC_EN (1 << 30) 41 42 /* 43 * These functions can't be implemented in inline assembly when compiling 44 * for thumb mode, to make it easy always implement then in ARM assembly as 45 * ordinary functions. 46 */ 47 void vfp_write_fpexc(uint32_t fpexc); 48 uint32_t vfp_read_fpexc(void); 49 void vfp_write_fpscr(uint32_t fpscr); 50 uint32_t vfp_read_fpscr(void); 51 52 #endif /* ARM32 */ 53 54 #endif /*VFP_PRIVATE*/ 55