1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (C) 2021 Western Digital Corporation or its affiliates. 4 * 5 * Authors: 6 * Atish Patra <atish.patra@wdc.com> 7 * Anup Patel <anup.patel@wdc.com> 8 */ 9 10 #ifndef __KVM_VCPU_RISCV_FP_H 11 #define __KVM_VCPU_RISCV_FP_H 12 13 #include <linux/types.h> 14 15 struct kvm_cpu_context; 16 17 #ifdef CONFIG_FPU 18 void __kvm_riscv_fp_f_save(struct kvm_cpu_context *context); 19 void __kvm_riscv_fp_f_restore(struct kvm_cpu_context *context); 20 void __kvm_riscv_fp_d_save(struct kvm_cpu_context *context); 21 void __kvm_riscv_fp_d_restore(struct kvm_cpu_context *context); 22 23 void kvm_riscv_vcpu_fp_reset(struct kvm_vcpu *vcpu); 24 void kvm_riscv_vcpu_guest_fp_save(struct kvm_cpu_context *cntx, 25 const unsigned long *isa); 26 void kvm_riscv_vcpu_guest_fp_restore(struct kvm_cpu_context *cntx, 27 const unsigned long *isa); 28 void kvm_riscv_vcpu_host_fp_save(struct kvm_cpu_context *cntx); 29 void kvm_riscv_vcpu_host_fp_restore(struct kvm_cpu_context *cntx); 30 #else 31 static inline void kvm_riscv_vcpu_fp_reset(struct kvm_vcpu *vcpu) 32 { 33 } 34 static inline void kvm_riscv_vcpu_guest_fp_save(struct kvm_cpu_context *cntx, 35 const unsigned long *isa) 36 { 37 } 38 static inline void kvm_riscv_vcpu_guest_fp_restore( 39 struct kvm_cpu_context *cntx, 40 const unsigned long *isa) 41 { 42 } 43 static inline void kvm_riscv_vcpu_host_fp_save(struct kvm_cpu_context *cntx) 44 { 45 } 46 static inline void kvm_riscv_vcpu_host_fp_restore( 47 struct kvm_cpu_context *cntx) 48 { 49 } 50 #endif 51 52 int kvm_riscv_vcpu_get_reg_fp(struct kvm_vcpu *vcpu, 53 const struct kvm_one_reg *reg, 54 unsigned long rtype); 55 int kvm_riscv_vcpu_set_reg_fp(struct kvm_vcpu *vcpu, 56 const struct kvm_one_reg *reg, 57 unsigned long rtype); 58 59 #endif 60