1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (c) 2013 NVIDIA Corporation.
4 */
5
6 /*
7 * Function naming determines intended use:
8 *
9 * <x>_r(void) : Returns the offset for register <x>.
10 *
11 * <x>_w(void) : Returns the word offset for word (4 byte) element <x>.
12 *
13 * <x>_<y>_s(void) : Returns size of field <y> of register <x> in bits.
14 *
15 * <x>_<y>_f(u32 v) : Returns a value based on 'v' which has been shifted
16 * and masked to place it at field <y> of register <x>. This value
17 * can be |'d with others to produce a full register value for
18 * register <x>.
19 *
20 * <x>_<y>_m(void) : Returns a mask for field <y> of register <x>. This
21 * value can be ~'d and then &'d to clear the value of field <y> for
22 * register <x>.
23 *
24 * <x>_<y>_<z>_f(void) : Returns the constant value <z> after being shifted
25 * to place it at field <y> of register <x>. This value can be |'d
26 * with others to produce a full register value for <x>.
27 *
28 * <x>_<y>_v(u32 r) : Returns the value of field <y> from a full register
29 * <x> value 'r' after being shifted to place its LSB at bit 0.
30 * This value is suitable for direct comparison with other unshifted
31 * values appropriate for use in field <y> of register <x>.
32 *
33 * <x>_<y>_<z>_v(void) : Returns the constant value for <z> defined for
34 * field <y> of register <x>. This value is suitable for direct
35 * comparison with unshifted values appropriate for use in field <y>
36 * of register <x>.
37 */
38
39#ifndef HOST1X_HW_HOST1X04_CHANNEL_H
40#define HOST1X_HW_HOST1X04_CHANNEL_H
41
42static inline u32 host1x_channel_fifostat_r(void)
43{
44 return 0x0;
45}
46#define HOST1X_CHANNEL_FIFOSTAT \
47 host1x_channel_fifostat_r()
48static inline u32 host1x_channel_fifostat_cfempty_v(u32 r)
49{
50 return (r >> 11) & 0x1;
51}
52#define HOST1X_CHANNEL_FIFOSTAT_CFEMPTY_V(r) \
53 host1x_channel_fifostat_cfempty_v(r)
54static inline u32 host1x_channel_dmastart_r(void)
55{
56 return 0x14;
57}
58#define HOST1X_CHANNEL_DMASTART \
59 host1x_channel_dmastart_r()
60static inline u32 host1x_channel_dmaput_r(void)
61{
62 return 0x18;
63}
64#define HOST1X_CHANNEL_DMAPUT \
65 host1x_channel_dmaput_r()
66static inline u32 host1x_channel_dmaget_r(void)
67{
68 return 0x1c;
69}
70#define HOST1X_CHANNEL_DMAGET \
71 host1x_channel_dmaget_r()
72static inline u32 host1x_channel_dmaend_r(void)
73{
74 return 0x20;
75}
76#define HOST1X_CHANNEL_DMAEND \
77 host1x_channel_dmaend_r()
78static inline u32 host1x_channel_dmactrl_r(void)
79{
80 return 0x24;
81}
82#define HOST1X_CHANNEL_DMACTRL \
83 host1x_channel_dmactrl_r()
84static inline u32 host1x_channel_dmactrl_dmastop(void)
85{
86 return 1 << 0;
87}
88#define HOST1X_CHANNEL_DMACTRL_DMASTOP \
89 host1x_channel_dmactrl_dmastop()
90static inline u32 host1x_channel_dmactrl_dmastop_v(u32 r)
91{
92 return (r >> 0) & 0x1;
93}
94#define HOST1X_CHANNEL_DMACTRL_DMASTOP_V(r) \
95 host1x_channel_dmactrl_dmastop_v(r)
96static inline u32 host1x_channel_dmactrl_dmagetrst(void)
97{
98 return 1 << 1;
99}
100#define HOST1X_CHANNEL_DMACTRL_DMAGETRST \
101 host1x_channel_dmactrl_dmagetrst()
102static inline u32 host1x_channel_dmactrl_dmainitget(void)
103{
104 return 1 << 2;
105}
106#define HOST1X_CHANNEL_DMACTRL_DMAINITGET \
107 host1x_channel_dmactrl_dmainitget()
108static inline u32 host1x_channel_channelctrl_r(void)
109{
110 return 0x98;
111}
112#define HOST1X_CHANNEL_CHANNELCTRL \
113 host1x_channel_channelctrl_r()
114static inline u32 host1x_channel_channelctrl_kernel_filter_gbuffer_f(u32 v)
115{
116 return (v & 0x1) << 2;
117}
118#define HOST1X_CHANNEL_CHANNELCTRL_KERNEL_FILTER_GBUFFER(v) \
119 host1x_channel_channelctrl_kernel_filter_gbuffer_f(v)
120
121#endif
122

source code of linux/drivers/gpu/host1x/hw/hw_host1x04_channel.h