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8 #ifndef GOYA_PACKETS_H
9 #define GOYA_PACKETS_H
10
11 #include <linux/types.h>
12
13 #define PACKET_HEADER_PACKET_ID_SHIFT 56
14 #define PACKET_HEADER_PACKET_ID_MASK 0x1F00000000000000ull
15
16 enum packet_id {
17 PACKET_WREG_32 = 0x1,
18 PACKET_WREG_BULK = 0x2,
19 PACKET_MSG_LONG = 0x3,
20 PACKET_MSG_SHORT = 0x4,
21 PACKET_CP_DMA = 0x5,
22 PACKET_MSG_PROT = 0x7,
23 PACKET_FENCE = 0x8,
24 PACKET_LIN_DMA = 0x9,
25 PACKET_NOP = 0xA,
26 PACKET_STOP = 0xB,
27 MAX_PACKET_ID = (PACKET_HEADER_PACKET_ID_MASK >>
28 PACKET_HEADER_PACKET_ID_SHIFT) + 1
29 };
30
31 enum goya_dma_direction {
32 DMA_HOST_TO_DRAM,
33 DMA_HOST_TO_SRAM,
34 DMA_DRAM_TO_SRAM,
35 DMA_SRAM_TO_DRAM,
36 DMA_SRAM_TO_HOST,
37 DMA_DRAM_TO_HOST,
38 DMA_DRAM_TO_DRAM,
39 DMA_SRAM_TO_SRAM,
40 DMA_ENUM_MAX
41 };
42
43 #define GOYA_PKT_CTL_OPCODE_SHIFT 24
44 #define GOYA_PKT_CTL_OPCODE_MASK 0x1F000000
45
46 #define GOYA_PKT_CTL_EB_SHIFT 29
47 #define GOYA_PKT_CTL_EB_MASK 0x20000000
48
49 #define GOYA_PKT_CTL_RB_SHIFT 30
50 #define GOYA_PKT_CTL_RB_MASK 0x40000000
51
52 #define GOYA_PKT_CTL_MB_SHIFT 31
53 #define GOYA_PKT_CTL_MB_MASK 0x80000000
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59
60 struct goya_packet {
61 __le64 header;
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63
64
65 u8 contents[0];
66 };
67
68 struct packet_nop {
69 __le32 reserved;
70 __le32 ctl;
71 };
72
73 struct packet_stop {
74 __le32 reserved;
75 __le32 ctl;
76 };
77
78 #define GOYA_PKT_WREG32_CTL_REG_OFFSET_SHIFT 0
79 #define GOYA_PKT_WREG32_CTL_REG_OFFSET_MASK 0x0000FFFF
80
81 struct packet_wreg32 {
82 __le32 value;
83 __le32 ctl;
84 };
85
86 struct packet_wreg_bulk {
87 __le32 size64;
88 __le32 ctl;
89 __le64 values[0];
90 };
91
92 struct packet_msg_long {
93 __le32 value;
94 __le32 ctl;
95 __le64 addr;
96 };
97
98 struct packet_msg_short {
99 __le32 value;
100 __le32 ctl;
101 };
102
103 struct packet_msg_prot {
104 __le32 value;
105 __le32 ctl;
106 __le64 addr;
107 };
108
109 struct packet_fence {
110 __le32 cfg;
111 __le32 ctl;
112 };
113
114 #define GOYA_PKT_LIN_DMA_CTL_WO_SHIFT 0
115 #define GOYA_PKT_LIN_DMA_CTL_WO_MASK 0x00000001
116
117 #define GOYA_PKT_LIN_DMA_CTL_RDCOMP_SHIFT 1
118 #define GOYA_PKT_LIN_DMA_CTL_RDCOMP_MASK 0x00000002
119
120 #define GOYA_PKT_LIN_DMA_CTL_WRCOMP_SHIFT 2
121 #define GOYA_PKT_LIN_DMA_CTL_WRCOMP_MASK 0x00000004
122
123 #define GOYA_PKT_LIN_DMA_CTL_MEMSET_SHIFT 6
124 #define GOYA_PKT_LIN_DMA_CTL_MEMSET_MASK 0x00000040
125
126 #define GOYA_PKT_LIN_DMA_CTL_DMA_DIR_SHIFT 20
127 #define GOYA_PKT_LIN_DMA_CTL_DMA_DIR_MASK 0x00700000
128
129 struct packet_lin_dma {
130 __le32 tsize;
131 __le32 ctl;
132 __le64 src_addr;
133 __le64 dst_addr;
134 };
135
136 struct packet_cp_dma {
137 __le32 tsize;
138 __le32 ctl;
139 __le64 src_addr;
140 };
141
142 #endif