Commit | Line | Data |
---|---|---|
bbf45ba5 HB |
1 | /* |
2 | * This program is free software; you can redistribute it and/or modify | |
3 | * it under the terms of the GNU General Public License, version 2, as | |
4 | * published by the Free Software Foundation. | |
5 | * | |
6 | * This program is distributed in the hope that it will be useful, | |
7 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
8 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
9 | * GNU General Public License for more details. | |
10 | * | |
11 | * You should have received a copy of the GNU General Public License | |
12 | * along with this program; if not, write to the Free Software | |
13 | * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. | |
14 | * | |
15 | * Copyright IBM Corp. 2007 | |
16 | * | |
17 | * Authors: Hollis Blanchard <hollisb@us.ibm.com> | |
18 | */ | |
19 | ||
20 | #ifndef __KVM_POWERPC_TLB_H__ | |
21 | #define __KVM_POWERPC_TLB_H__ | |
22 | ||
23 | #include <linux/kvm_host.h> | |
24 | #include <asm/mmu-44x.h> | |
25 | ||
26 | extern int kvmppc_44x_tlb_index(struct kvm_vcpu *vcpu, gva_t eaddr, | |
27 | unsigned int pid, unsigned int as); | |
bbf45ba5 | 28 | |
75f74f0d HB |
29 | extern int kvmppc_44x_emul_tlbsx(struct kvm_vcpu *vcpu, u8 rt, u8 ra, u8 rb, |
30 | u8 rc); | |
31 | extern int kvmppc_44x_emul_tlbwe(struct kvm_vcpu *vcpu, u8 ra, u8 rs, u8 ws); | |
32 | ||
bbf45ba5 | 33 | /* TLB helper functions */ |
0f55dc48 | 34 | static inline unsigned int get_tlb_size(const struct kvmppc_44x_tlbe *tlbe) |
bbf45ba5 HB |
35 | { |
36 | return (tlbe->word0 >> 4) & 0xf; | |
37 | } | |
38 | ||
0f55dc48 | 39 | static inline gva_t get_tlb_eaddr(const struct kvmppc_44x_tlbe *tlbe) |
bbf45ba5 HB |
40 | { |
41 | return tlbe->word0 & 0xfffffc00; | |
42 | } | |
43 | ||
0f55dc48 | 44 | static inline gva_t get_tlb_bytes(const struct kvmppc_44x_tlbe *tlbe) |
bbf45ba5 HB |
45 | { |
46 | unsigned int pgsize = get_tlb_size(tlbe); | |
47 | return 1 << 10 << (pgsize << 1); | |
48 | } | |
49 | ||
0f55dc48 | 50 | static inline gva_t get_tlb_end(const struct kvmppc_44x_tlbe *tlbe) |
bbf45ba5 HB |
51 | { |
52 | return get_tlb_eaddr(tlbe) + get_tlb_bytes(tlbe) - 1; | |
53 | } | |
54 | ||
0f55dc48 | 55 | static inline u64 get_tlb_raddr(const struct kvmppc_44x_tlbe *tlbe) |
bbf45ba5 HB |
56 | { |
57 | u64 word1 = tlbe->word1; | |
58 | return ((word1 & 0xf) << 32) | (word1 & 0xfffffc00); | |
59 | } | |
60 | ||
0f55dc48 | 61 | static inline unsigned int get_tlb_tid(const struct kvmppc_44x_tlbe *tlbe) |
bbf45ba5 HB |
62 | { |
63 | return tlbe->tid & 0xff; | |
64 | } | |
65 | ||
0f55dc48 | 66 | static inline unsigned int get_tlb_ts(const struct kvmppc_44x_tlbe *tlbe) |
bbf45ba5 HB |
67 | { |
68 | return (tlbe->word0 >> 8) & 0x1; | |
69 | } | |
70 | ||
0f55dc48 | 71 | static inline unsigned int get_tlb_v(const struct kvmppc_44x_tlbe *tlbe) |
bbf45ba5 HB |
72 | { |
73 | return (tlbe->word0 >> 9) & 0x1; | |
74 | } | |
75 | ||
76 | static inline unsigned int get_mmucr_stid(const struct kvm_vcpu *vcpu) | |
77 | { | |
78 | return vcpu->arch.mmucr & 0xff; | |
79 | } | |
80 | ||
81 | static inline unsigned int get_mmucr_sts(const struct kvm_vcpu *vcpu) | |
82 | { | |
83 | return (vcpu->arch.mmucr >> 16) & 0x1; | |
84 | } | |
85 | ||
bbf45ba5 | 86 | #endif /* __KVM_POWERPC_TLB_H__ */ |