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diff --git a/include/nvgpu/pmuif/gpmuif_cmn.h b/include/nvgpu/pmuif/gpmuif_cmn.h
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1/*
2 * Copyright (c) 2017-2018, NVIDIA CORPORATION. All rights reserved.
3 *
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:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
20 * DEALINGS IN THE SOFTWARE.
21 */
22#ifndef NVGPU_PMUIF_GPMUIF_CMN_H
23#define NVGPU_PMUIF_GPMUIF_CMN_H
24
25/*
26 * Defines the logical queue IDs that must be used when submitting
27 * commands to the PMU
28 */
29/* write by sw, read by pmu, protected by sw mutex lock */
30#define PMU_COMMAND_QUEUE_HPQ 0U
31/* write by sw, read by pmu, protected by sw mutex lock */
32#define PMU_COMMAND_QUEUE_LPQ 1U
33/* write by pmu, read by sw, accessed by interrupt handler, no lock */
34#define PMU_MESSAGE_QUEUE 4U
35#define PMU_QUEUE_COUNT 5U
36
37#define PMU_IS_COMMAND_QUEUE(id) \
38 ((id) < PMU_MESSAGE_QUEUE)
39
40#define PMU_IS_SW_COMMAND_QUEUE(id) \
41 (((id) == PMU_COMMAND_QUEUE_HPQ) || \
42 ((id) == PMU_COMMAND_QUEUE_LPQ))
43
44#define PMU_IS_MESSAGE_QUEUE(id) \
45 ((id) == PMU_MESSAGE_QUEUE)
46
47#define OFLAG_READ 0U
48#define OFLAG_WRITE 1U
49
50#define QUEUE_SET (true)
51#define QUEUE_GET (false)
52
53#define QUEUE_ALIGNMENT (4U)
54
55/* An enumeration containing all valid logical mutex identifiers */
56enum {
57 PMU_MUTEX_ID_RSVD1 = 0,
58 PMU_MUTEX_ID_GPUSER,
59 PMU_MUTEX_ID_QUEUE_BIOS,
60 PMU_MUTEX_ID_QUEUE_SMI,
61 PMU_MUTEX_ID_GPMUTEX,
62 PMU_MUTEX_ID_I2C,
63 PMU_MUTEX_ID_RMLOCK,
64 PMU_MUTEX_ID_MSGBOX,
65 PMU_MUTEX_ID_FIFO,
66 PMU_MUTEX_ID_PG,
67 PMU_MUTEX_ID_GR,
68 PMU_MUTEX_ID_CLK,
69 PMU_MUTEX_ID_RSVD6,
70 PMU_MUTEX_ID_RSVD7,
71 PMU_MUTEX_ID_RSVD8,
72 PMU_MUTEX_ID_RSVD9,
73 PMU_MUTEX_ID_INVALID
74};
75
76#define PMU_MUTEX_ID_IS_VALID(id) \
77 ((id) < PMU_MUTEX_ID_INVALID)
78
79#define PMU_INVALID_MUTEX_OWNER_ID (0)
80
81/*
82 * The PMU's frame-buffer interface block has several slots/indices
83 * which can be bound to support DMA to various surfaces in memory
84 */
85enum {
86 PMU_DMAIDX_UCODE = 0,
87 PMU_DMAIDX_VIRT = 1,
88 PMU_DMAIDX_PHYS_VID = 2,
89 PMU_DMAIDX_PHYS_SYS_COH = 3,
90 PMU_DMAIDX_PHYS_SYS_NCOH = 4,
91 PMU_DMAIDX_RSVD = 5,
92 PMU_DMAIDX_PELPG = 6,
93 PMU_DMAIDX_END = 7
94};
95
96/*
97 * Falcon PMU DMA's minimum size in bytes.
98 */
99#define PMU_DMA_MIN_READ_SIZE_BYTES 16
100#define PMU_DMA_MIN_WRITE_SIZE_BYTES 4
101
102#define PMU_FB_COPY_RW_ALIGNMENT \
103 ((PMU_DMA_MIN_READ_SIZE_BYTES > PMU_DMA_MIN_WRITE_SIZE_BYTES) ? \
104 PMU_DMA_MIN_READ_SIZE_BYTES : PMU_DMA_MIN_WRITE_SIZE_BYTES)
105
106/*
107 * Macros to make aligned versions of RM_PMU_XXX structures. PMU needs aligned
108 * data structures to issue DMA read/write operations.
109 */
110#define NV_PMU_MAKE_ALIGNED_STRUCT(name, size) \
111union name##_aligned { \
112 struct name data; \
113 u8 pad[ALIGN_UP(sizeof(struct name), \
114 (PMU_FB_COPY_RW_ALIGNMENT))]; \
115}
116
117#define NV_PMU_MAKE_ALIGNED_UNION(name, size) \
118union name##_aligned { \
119 union name data; \
120 u8 pad[ALIGN_UP(sizeof(union name), \
121 (PMU_FB_COPY_RW_ALIGNMENT))]; \
122}
123
124/* RPC (Remote Procedure Call) header structure */
125#define NV_PMU_RPC_FLAGS_TYPE_SYNC 0x00000000
126
127struct nv_pmu_rpc_header {
128 /* Identifies the unit servicing requested RPC*/
129 u8 unit_id;
130 /* Identifies the requested RPC (within the unit)*/
131 u8 function;
132 /* RPC call flags (@see PMU_RPC_FLAGS) */
133 u8 flags;
134 /* Falcon's status code to describe failures*/
135 u8 flcn_status;
136 /* RPC's total exec. time (measured on nvgpu driver side)*/
137 u32 exec_time_nv_ns;
138 /* RPC's actual exec. time (measured on PMU side)*/
139 u32 exec_time_pmu_ns;
140};
141
142#endif /* NVGPU_PMUIF_GPMUIF_CMN_H*/