block: Fix comment typo
[sfrench/cifs-2.6.git] / drivers / gpu / drm / amd / display / dc / dc_stream.h
1 /*
2  * Copyright 2012-14 Advanced Micro Devices, Inc.
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 COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Authors: AMD
23  *
24  */
25
26 #ifndef DC_STREAM_H_
27 #define DC_STREAM_H_
28
29 #include "dc_types.h"
30 #include "grph_object_defs.h"
31
32 /*******************************************************************************
33  * Stream Interfaces
34  ******************************************************************************/
35
36 struct dc_stream_status {
37         int primary_otg_inst;
38         int stream_enc_inst;
39         int plane_count;
40         struct dc_plane_state *plane_states[MAX_SURFACE_NUM];
41
42         /*
43          * link this stream passes through
44          */
45         struct dc_link *link;
46 };
47
48 // TODO: References to this needs to be removed..
49 struct freesync_context {
50         bool dummy;
51 };
52
53 struct dc_stream_state {
54         struct dc_sink *sink;
55         struct dc_crtc_timing timing;
56         struct dc_crtc_timing_adjust adjust;
57         struct dc_info_packet vrr_infopacket;
58         struct dc_info_packet vsc_infopacket;
59         struct dc_info_packet vsp_infopacket;
60
61         struct rect src; /* composition area */
62         struct rect dst; /* stream addressable area */
63
64         // TODO: References to this needs to be removed..
65         struct freesync_context freesync_ctx;
66
67         struct audio_info audio_info;
68
69         struct dc_info_packet hdr_static_metadata;
70         PHYSICAL_ADDRESS_LOC dmdata_address;
71         bool   use_dynamic_meta;
72
73         struct dc_transfer_func *out_transfer_func;
74         struct colorspace_transform gamut_remap_matrix;
75         struct dc_csc_transform csc_color_matrix;
76
77         enum dc_color_space output_color_space;
78         enum dc_dither_option dither_option;
79
80         enum view_3d_format view_format;
81
82         bool ignore_msa_timing_param;
83
84         unsigned long long periodic_fn_vsync_delta;
85
86         /* TODO: custom INFO packets */
87         /* TODO: ABM info (DMCU) */
88         /* PSR info */
89         unsigned char psr_version;
90         /* TODO: CEA VIC */
91
92         /* DMCU info */
93         unsigned int abm_level;
94         unsigned int bl_pwm_level;
95
96         /* from core_stream struct */
97         struct dc_context *ctx;
98
99         /* used by DCP and FMT */
100         struct bit_depth_reduction_params bit_depth_params;
101         struct clamping_and_pixel_encoding_params clamping;
102
103         int phy_pix_clk;
104         enum signal_type signal;
105         bool dpms_off;
106         bool apply_edp_fast_boot_optimization;
107
108         struct dc_cursor_attributes cursor_attributes;
109         struct dc_cursor_position cursor_position;
110         uint32_t sdr_white_level; // for boosting (SDR) cursor in HDR mode
111
112         /* from stream struct */
113         struct kref refcount;
114
115         struct crtc_trigger_info triggered_crtc_reset;
116
117         /* Computed state bits */
118         bool mode_changed : 1;
119
120 };
121
122 struct dc_stream_update {
123         struct rect src;
124         struct rect dst;
125         struct dc_transfer_func *out_transfer_func;
126         struct dc_info_packet *hdr_static_metadata;
127         unsigned int *abm_level;
128
129         unsigned long long *periodic_fn_vsync_delta;
130         struct dc_crtc_timing_adjust *adjust;
131         struct dc_info_packet *vrr_infopacket;
132         struct dc_info_packet *vsc_infopacket;
133         struct dc_info_packet *vsp_infopacket;
134
135         bool *dpms_off;
136
137         struct colorspace_transform *gamut_remap;
138         enum dc_color_space *output_color_space;
139         enum dc_dither_option *dither_option;
140
141         struct dc_csc_transform *output_csc_transform;
142
143 };
144
145 bool dc_is_stream_unchanged(
146         struct dc_stream_state *old_stream, struct dc_stream_state *stream);
147 bool dc_is_stream_scaling_unchanged(
148         struct dc_stream_state *old_stream, struct dc_stream_state *stream);
149
150 /*
151  * Set up surface attributes and associate to a stream
152  * The surfaces parameter is an absolute set of all surface active for the stream.
153  * If no surfaces are provided, the stream will be blanked; no memory read.
154  * Any flip related attribute changes must be done through this interface.
155  *
156  * After this call:
157  *   Surfaces attributes are programmed and configured to be composed into stream.
158  *   This does not trigger a flip.  No surface address is programmed.
159  */
160
161 void dc_commit_updates_for_stream(struct dc *dc,
162                 struct dc_surface_update *srf_updates,
163                 int surface_count,
164                 struct dc_stream_state *stream,
165                 struct dc_stream_update *stream_update,
166                 struct dc_plane_state **plane_states,
167                 struct dc_state *state);
168 /*
169  * Log the current stream state.
170  */
171 void dc_stream_log(const struct dc *dc, const struct dc_stream_state *stream);
172
173 uint8_t dc_get_current_stream_count(struct dc *dc);
174 struct dc_stream_state *dc_get_stream_at_index(struct dc *dc, uint8_t i);
175
176 /*
177  * Return the current frame counter.
178  */
179 uint32_t dc_stream_get_vblank_counter(const struct dc_stream_state *stream);
180
181 /* TODO: Return parsed values rather than direct register read
182  * This has a dependency on the caller (amdgpu_display_get_crtc_scanoutpos)
183  * being refactored properly to be dce-specific
184  */
185 bool dc_stream_get_scanoutpos(const struct dc_stream_state *stream,
186                                   uint32_t *v_blank_start,
187                                   uint32_t *v_blank_end,
188                                   uint32_t *h_position,
189                                   uint32_t *v_position);
190
191 enum dc_status dc_add_stream_to_ctx(
192                         struct dc *dc,
193                 struct dc_state *new_ctx,
194                 struct dc_stream_state *stream);
195
196 enum dc_status dc_remove_stream_from_ctx(
197                 struct dc *dc,
198                         struct dc_state *new_ctx,
199                         struct dc_stream_state *stream);
200
201
202 bool dc_add_plane_to_context(
203                 const struct dc *dc,
204                 struct dc_stream_state *stream,
205                 struct dc_plane_state *plane_state,
206                 struct dc_state *context);
207
208 bool dc_remove_plane_from_context(
209                 const struct dc *dc,
210                 struct dc_stream_state *stream,
211                 struct dc_plane_state *plane_state,
212                 struct dc_state *context);
213
214 bool dc_rem_all_planes_for_stream(
215                 const struct dc *dc,
216                 struct dc_stream_state *stream,
217                 struct dc_state *context);
218
219 bool dc_add_all_planes_for_stream(
220                 const struct dc *dc,
221                 struct dc_stream_state *stream,
222                 struct dc_plane_state * const *plane_states,
223                 int plane_count,
224                 struct dc_state *context);
225
226 enum dc_status dc_validate_stream(struct dc *dc, struct dc_stream_state *stream);
227
228 /*
229  * Set up streams and links associated to drive sinks
230  * The streams parameter is an absolute set of all active streams.
231  *
232  * After this call:
233  *   Phy, Encoder, Timing Generator are programmed and enabled.
234  *   New streams are enabled with blank stream; no memory read.
235  */
236 /*
237  * Enable stereo when commit_streams is not required,
238  * for example, frame alternate.
239  */
240 bool dc_enable_stereo(
241         struct dc *dc,
242         struct dc_state *context,
243         struct dc_stream_state *streams[],
244         uint8_t stream_count);
245
246
247 enum surface_update_type dc_check_update_surfaces_for_stream(
248                 struct dc *dc,
249                 struct dc_surface_update *updates,
250                 int surface_count,
251                 struct dc_stream_update *stream_update,
252                 const struct dc_stream_status *stream_status);
253
254 /**
255  * Create a new default stream for the requested sink
256  */
257 struct dc_stream_state *dc_create_stream_for_sink(struct dc_sink *dc_sink);
258
259 void update_stream_signal(struct dc_stream_state *stream);
260
261 void dc_stream_retain(struct dc_stream_state *dc_stream);
262 void dc_stream_release(struct dc_stream_state *dc_stream);
263
264 struct dc_stream_status *dc_stream_get_status(
265         struct dc_stream_state *dc_stream);
266
267 /*******************************************************************************
268  * Cursor interfaces - To manages the cursor within a stream
269  ******************************************************************************/
270 /* TODO: Deprecated once we switch to dc_set_cursor_position */
271 bool dc_stream_set_cursor_attributes(
272         struct dc_stream_state *stream,
273         const struct dc_cursor_attributes *attributes);
274
275 bool dc_stream_set_cursor_position(
276         struct dc_stream_state *stream,
277         const struct dc_cursor_position *position);
278
279
280 bool dc_stream_adjust_vmin_vmax(struct dc *dc,
281                                 struct dc_stream_state *stream,
282                                 struct dc_crtc_timing_adjust *adjust);
283
284 bool dc_stream_get_crtc_position(struct dc *dc,
285                                  struct dc_stream_state **stream,
286                                  int num_streams,
287                                  unsigned int *v_pos,
288                                  unsigned int *nom_v_pos);
289
290 bool dc_stream_configure_crc(struct dc *dc,
291                              struct dc_stream_state *stream,
292                              bool enable,
293                              bool continuous);
294
295 bool dc_stream_get_crc(struct dc *dc,
296                        struct dc_stream_state *stream,
297                        uint32_t *r_cr,
298                        uint32_t *g_y,
299                        uint32_t *b_cb);
300
301 void dc_stream_set_static_screen_events(struct dc *dc,
302                                         struct dc_stream_state **stream,
303                                         int num_streams,
304                                         const struct dc_static_screen_events *events);
305
306 void dc_stream_set_dither_option(struct dc_stream_state *stream,
307                                  enum dc_dither_option option);
308
309 bool dc_stream_set_gamut_remap(struct dc *dc,
310                                const struct dc_stream_state *stream);
311
312 bool dc_stream_program_csc_matrix(struct dc *dc,
313                                   struct dc_stream_state *stream);
314
315 bool dc_stream_get_crtc_position(struct dc *dc,
316                                  struct dc_stream_state **stream,
317                                  int num_streams,
318                                  unsigned int *v_pos,
319                                  unsigned int *nom_v_pos);
320
321 #endif /* DC_STREAM_H_ */