43835d147f640d1e054f21bd89a06fa04863a6cd
2 * Copyright © 2019 Google LLC
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
26 #include "tu_private.h"
28 #include "registers/adreno_pm4.xml.h"
31 tu_cs_init(struct tu_cs
*cs
, uint32_t initial_size
);
34 tu_cs_finish(struct tu_device
*dev
, struct tu_cs
*cs
);
37 tu_cs_begin(struct tu_cs
*cs
);
40 tu_cs_end(struct tu_cs
*cs
);
43 tu_cs_reserve_space(struct tu_device
*dev
,
45 uint32_t reserved_size
);
48 tu_cs_reset(struct tu_device
*dev
, struct tu_cs
*cs
);
51 * Assert that we did not exceed the reserved space.
54 tu_cs_reserve_space_assert(struct tu_cs
*cs
)
56 assert(cs
->cur
<= cs
->reserved_end
);
60 * Emit a uint32_t value into a command stream, without boundary checking.
63 tu_cs_emit(struct tu_cs
*cs
, uint32_t value
)
65 assert(cs
->cur
< cs
->end
);
70 static inline unsigned
71 tu_odd_parity_bit(unsigned val
)
73 /* See: http://graphics.stanford.edu/~seander/bithacks.html#ParityParallel
74 * note that we want odd parity so 0x6996 is inverted.
80 return (~0x6996 >> val
) & 1;
84 * Emit a type-4 command packet header into a command stream.
87 tu_cs_emit_pkt4(struct tu_cs
*cs
, uint16_t regindx
, uint16_t cnt
)
89 tu_cs_emit(cs
, CP_TYPE4_PKT
| cnt
| (tu_odd_parity_bit(cnt
) << 7) |
90 ((regindx
& 0x3ffff) << 8) |
91 ((tu_odd_parity_bit(regindx
) << 27)));
95 * Emit a type-7 command packet header into a command stream.
98 tu_cs_emit_pkt7(struct tu_cs
*cs
, uint8_t opcode
, uint16_t cnt
)
100 tu_cs_emit(cs
, CP_TYPE7_PKT
| cnt
| (tu_odd_parity_bit(cnt
) << 15) |
101 ((opcode
& 0x7f) << 16) |
102 ((tu_odd_parity_bit(opcode
) << 23)));
106 tu_cs_emit_wfi(struct tu_cs
*cs
)
108 tu_cs_emit_pkt7(cs
, CP_WAIT_FOR_IDLE
, 0);
112 tu_cs_emit_qw(struct tu_cs
*cs
, uint64_t value
)
114 tu_cs_emit(cs
, (uint32_t) value
);
115 tu_cs_emit(cs
, (uint32_t) (value
>> 32));
119 tu_cs_emit_write_reg(struct tu_cs
*cs
, uint16_t reg
, uint32_t value
)
121 tu_cs_emit_pkt4(cs
, reg
, 1);
122 tu_cs_emit(cs
, value
);
126 tu_cs_emit_ib(struct tu_cs
*cs
, const struct tu_cs
*target
)
128 for (uint32_t i
= 0; i
< target
->entry_count
; i
++) {
129 const struct tu_cs_entry
*entry
= target
->entries
+ i
;
131 tu_cs_emit_pkt7(cs
, CP_INDIRECT_BUFFER
, 3);
132 tu_cs_emit_qw(cs
, entry
->bo
->iova
+ entry
->offset
);
133 tu_cs_emit(cs
, entry
->size
/ sizeof(uint32_t));