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 
42 static inline u32 host1x_channel_fifostat_r(void)
43 {
44 	return 0x0;
45 }
46 #define HOST1X_CHANNEL_FIFOSTAT \
47 	host1x_channel_fifostat_r()
48 static 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)
54 static inline u32 host1x_channel_dmastart_r(void)
55 {
56 	return 0x14;
57 }
58 #define HOST1X_CHANNEL_DMASTART \
59 	host1x_channel_dmastart_r()
60 static inline u32 host1x_channel_dmaput_r(void)
61 {
62 	return 0x18;
63 }
64 #define HOST1X_CHANNEL_DMAPUT \
65 	host1x_channel_dmaput_r()
66 static inline u32 host1x_channel_dmaget_r(void)
67 {
68 	return 0x1c;
69 }
70 #define HOST1X_CHANNEL_DMAGET \
71 	host1x_channel_dmaget_r()
72 static inline u32 host1x_channel_dmaend_r(void)
73 {
74 	return 0x20;
75 }
76 #define HOST1X_CHANNEL_DMAEND \
77 	host1x_channel_dmaend_r()
78 static inline u32 host1x_channel_dmactrl_r(void)
79 {
80 	return 0x24;
81 }
82 #define HOST1X_CHANNEL_DMACTRL \
83 	host1x_channel_dmactrl_r()
84 static inline u32 host1x_channel_dmactrl_dmastop(void)
85 {
86 	return 1 << 0;
87 }
88 #define HOST1X_CHANNEL_DMACTRL_DMASTOP \
89 	host1x_channel_dmactrl_dmastop()
90 static 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)
96 static inline u32 host1x_channel_dmactrl_dmagetrst(void)
97 {
98 	return 1 << 1;
99 }
100 #define HOST1X_CHANNEL_DMACTRL_DMAGETRST \
101 	host1x_channel_dmactrl_dmagetrst()
102 static inline u32 host1x_channel_dmactrl_dmainitget(void)
103 {
104 	return 1 << 2;
105 }
106 #define HOST1X_CHANNEL_DMACTRL_DMAINITGET \
107 	host1x_channel_dmactrl_dmainitget()
108 static inline u32 host1x_channel_channelctrl_r(void)
109 {
110 	return 0x98;
111 }
112 #define HOST1X_CHANNEL_CHANNELCTRL \
113 	host1x_channel_channelctrl_r()
114 static 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