1 | #ifndef __NVKM_FBRAM_FUC_H__ |
2 | #define __NVKM_FBRAM_FUC_H__ |
3 | |
4 | #include <subdev/pwr.h> |
5 | |
6 | struct ramfuc { |
7 | struct nouveau_memx *memx; |
8 | struct nouveau_fb *pfb; |
9 | int sequence; |
10 | }; |
11 | |
12 | struct ramfuc_reg { |
13 | int sequence; |
14 | bool force; |
15 | u32 addr[2]; |
16 | u32 data; |
17 | }; |
18 | |
19 | static inline struct ramfuc_reg |
20 | ramfuc_reg2(u32 addr1, u32 addr2) |
21 | { |
22 | return (struct ramfuc_reg) { |
23 | .sequence = 0, |
24 | .addr = { addr1, addr2 }, |
25 | .data = 0xdeadbeef, |
26 | }; |
27 | } |
28 | |
29 | static inline struct ramfuc_reg |
30 | ramfuc_reg(u32 addr) |
31 | { |
32 | return ramfuc_reg2(addr, addr); |
33 | } |
34 | |
35 | static inline int |
36 | ramfuc_init(struct ramfuc *ram, struct nouveau_fb *pfb) |
37 | { |
38 | struct nouveau_pwr *ppwr = nouveau_pwr(pfb); |
39 | int ret; |
40 | |
41 | ret = nouveau_memx_init(ppwr, &ram->memx); |
42 | if (ret) |
43 | return ret; |
44 | |
45 | ram->sequence++; |
46 | ram->pfb = pfb; |
47 | return 0; |
48 | } |
49 | |
50 | static inline int |
51 | ramfuc_exec(struct ramfuc *ram, bool exec) |
52 | { |
53 | int ret = 0; |
54 | if (ram->pfb) { |
55 | ret = nouveau_memx_fini(&ram->memx, exec); |
56 | ram->pfb = NULL; |
57 | } |
58 | return ret; |
59 | } |
60 | |
61 | static inline u32 |
62 | ramfuc_rd32(struct ramfuc *ram, struct ramfuc_reg *reg) |
63 | { |
64 | if (reg->sequence != ram->sequence) |
65 | reg->data = nv_rd32(ram->pfb, reg->addr[0]); |
66 | return reg->data; |
67 | } |
68 | |
69 | static inline void |
70 | ramfuc_wr32(struct ramfuc *ram, struct ramfuc_reg *reg, u32 data) |
71 | { |
72 | reg->sequence = ram->sequence; |
73 | reg->data = data; |
74 | if (reg->addr[0] != reg->addr[1]) |
75 | nouveau_memx_wr32(ram->memx, reg->addr[1], reg->data); |
76 | nouveau_memx_wr32(ram->memx, reg->addr[0], reg->data); |
77 | } |
78 | |
79 | static inline void |
80 | ramfuc_nuke(struct ramfuc *ram, struct ramfuc_reg *reg) |
81 | { |
82 | reg->force = true; |
83 | } |
84 | |
85 | static inline u32 |
86 | ramfuc_mask(struct ramfuc *ram, struct ramfuc_reg *reg, u32 mask, u32 data) |
87 | { |
88 | u32 temp = ramfuc_rd32(ram, reg); |
89 | if (temp != ((temp & ~mask) | data) || reg->force) { |
90 | ramfuc_wr32(ram, reg, (temp & ~mask) | data); |
91 | reg->force = false; |
92 | } |
93 | return temp; |
94 | } |
95 | |
96 | static inline void |
97 | ramfuc_wait(struct ramfuc *ram, u32 addr, u32 mask, u32 data, u32 nsec) |
98 | { |
99 | nouveau_memx_wait(ram->memx, addr, mask, data, nsec); |
100 | } |
101 | |
102 | static inline void |
103 | ramfuc_nsec(struct ramfuc *ram, u32 nsec) |
104 | { |
105 | nouveau_memx_nsec(ram->memx, nsec); |
106 | } |
107 | |
108 | #define ram_init(s,p) ramfuc_init(&(s)->base, (p)) |
109 | #define ram_exec(s,e) ramfuc_exec(&(s)->base, (e)) |
110 | #define ram_have(s,r) ((s)->r_##r.addr != 0x000000) |
111 | #define ram_rd32(s,r) ramfuc_rd32(&(s)->base, &(s)->r_##r) |
112 | #define ram_wr32(s,r,d) ramfuc_wr32(&(s)->base, &(s)->r_##r, (d)) |
113 | #define ram_nuke(s,r) ramfuc_nuke(&(s)->base, &(s)->r_##r) |
114 | #define ram_mask(s,r,m,d) ramfuc_mask(&(s)->base, &(s)->r_##r, (m), (d)) |
115 | #define ram_wait(s,r,m,d,n) ramfuc_wait(&(s)->base, (r), (m), (d), (n)) |
116 | #define ram_nsec(s,n) ramfuc_nsec(&(s)->base, (n)) |
117 | |
118 | #endif |
119 | |