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