e46bf83c18
This patch set contains basic components for supporting the nds32 FPU, such as exception handlers and context switch for FPU registers. By default, the lazy FPU scheme is supported and the user can configure it via CONFIG_LZAY_FPU. Signed-off-by: Vincent Chen <vincentc@andestech.com> Acked-by: Greentime Hu <greentime@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com>
66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
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// Copyright (C) 2005-2017 Andes Technology Corporation
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#ifndef _ASMNDS32_SIGCONTEXT_H
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#define _ASMNDS32_SIGCONTEXT_H
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/*
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* Signal context structure - contains all info to do with the state
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* before the signal handler was invoked. Note: only add new entries
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* to the end of the structure.
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*/
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struct fpu_struct {
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unsigned long long fd_regs[32];
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unsigned long fpcsr;
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};
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struct zol_struct {
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unsigned long nds32_lc; /* $LC */
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unsigned long nds32_le; /* $LE */
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unsigned long nds32_lb; /* $LB */
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};
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struct sigcontext {
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unsigned long trap_no;
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unsigned long error_code;
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unsigned long oldmask;
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unsigned long nds32_r0;
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unsigned long nds32_r1;
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unsigned long nds32_r2;
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unsigned long nds32_r3;
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unsigned long nds32_r4;
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unsigned long nds32_r5;
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unsigned long nds32_r6;
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unsigned long nds32_r7;
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unsigned long nds32_r8;
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unsigned long nds32_r9;
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unsigned long nds32_r10;
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unsigned long nds32_r11;
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unsigned long nds32_r12;
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unsigned long nds32_r13;
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unsigned long nds32_r14;
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unsigned long nds32_r15;
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unsigned long nds32_r16;
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unsigned long nds32_r17;
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unsigned long nds32_r18;
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unsigned long nds32_r19;
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unsigned long nds32_r20;
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unsigned long nds32_r21;
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unsigned long nds32_r22;
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unsigned long nds32_r23;
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unsigned long nds32_r24;
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unsigned long nds32_r25;
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unsigned long nds32_fp; /* $r28 */
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unsigned long nds32_gp; /* $r29 */
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unsigned long nds32_lp; /* $r30 */
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unsigned long nds32_sp; /* $r31 */
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unsigned long nds32_ipc;
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unsigned long fault_address;
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unsigned long used_math_flag;
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/* FPU Registers */
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struct fpu_struct fpu;
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struct zol_struct zol;
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};
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#endif
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