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
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