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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
[cris-mirror.git] / drivers / gpu / drm / sti / sti_hqvdp.c
blob106be8c4e58b9a186e664da52fd7afaf92df5d0b
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright (C) STMicroelectronics SA 2014
4 * Authors: Fabien Dessenne <fabien.dessenne@st.com> for STMicroelectronics.
5 */
6
7 #include <linux/component.h>
8 #include <linux/firmware.h>
9 #include <linux/reset.h>
10 #include <linux/seq_file.h>
11
12 #include <drm/drm_atomic.h>
13 #include <drm/drm_fb_cma_helper.h>
14 #include <drm/drm_gem_cma_helper.h>
15
16 #include "sti_compositor.h"
17 #include "sti_hqvdp_lut.h"
18 #include "sti_plane.h"
19 #include "sti_vtg.h"
20 #include "sti_drv.h"
21
22 /* Firmware name */
23 #define HQVDP_FMW_NAME "hqvdp-stih407.bin"
24
25 /* Regs address */
26 #define HQVDP_DMEM 0x00000000 /* 0x00000000 */
27 #define HQVDP_PMEM 0x00040000 /* 0x00040000 */
28 #define HQVDP_RD_PLUG 0x000E0000 /* 0x000E0000 */
29 #define HQVDP_RD_PLUG_CONTROL (HQVDP_RD_PLUG + 0x1000) /* 0x000E1000 */
30 #define HQVDP_RD_PLUG_PAGE_SIZE (HQVDP_RD_PLUG + 0x1004) /* 0x000E1004 */
31 #define HQVDP_RD_PLUG_MIN_OPC (HQVDP_RD_PLUG + 0x1008) /* 0x000E1008 */
32 #define HQVDP_RD_PLUG_MAX_OPC (HQVDP_RD_PLUG + 0x100C) /* 0x000E100C */
33 #define HQVDP_RD_PLUG_MAX_CHK (HQVDP_RD_PLUG + 0x1010) /* 0x000E1010 */
34 #define HQVDP_RD_PLUG_MAX_MSG (HQVDP_RD_PLUG + 0x1014) /* 0x000E1014 */
35 #define HQVDP_RD_PLUG_MIN_SPACE (HQVDP_RD_PLUG + 0x1018) /* 0x000E1018 */
36 #define HQVDP_WR_PLUG 0x000E2000 /* 0x000E2000 */
37 #define HQVDP_WR_PLUG_CONTROL (HQVDP_WR_PLUG + 0x1000) /* 0x000E3000 */
38 #define HQVDP_WR_PLUG_PAGE_SIZE (HQVDP_WR_PLUG + 0x1004) /* 0x000E3004 */
39 #define HQVDP_WR_PLUG_MIN_OPC (HQVDP_WR_PLUG + 0x1008) /* 0x000E3008 */
40 #define HQVDP_WR_PLUG_MAX_OPC (HQVDP_WR_PLUG + 0x100C) /* 0x000E300C */
41 #define HQVDP_WR_PLUG_MAX_CHK (HQVDP_WR_PLUG + 0x1010) /* 0x000E3010 */
42 #define HQVDP_WR_PLUG_MAX_MSG (HQVDP_WR_PLUG + 0x1014) /* 0x000E3014 */
43 #define HQVDP_WR_PLUG_MIN_SPACE (HQVDP_WR_PLUG + 0x1018) /* 0x000E3018 */
44 #define HQVDP_MBX 0x000E4000 /* 0x000E4000 */
45 #define HQVDP_MBX_IRQ_TO_XP70 (HQVDP_MBX + 0x0000) /* 0x000E4000 */
46 #define HQVDP_MBX_INFO_HOST (HQVDP_MBX + 0x0004) /* 0x000E4004 */
47 #define HQVDP_MBX_IRQ_TO_HOST (HQVDP_MBX + 0x0008) /* 0x000E4008 */
48 #define HQVDP_MBX_INFO_XP70 (HQVDP_MBX + 0x000C) /* 0x000E400C */
49 #define HQVDP_MBX_SW_RESET_CTRL (HQVDP_MBX + 0x0010) /* 0x000E4010 */
50 #define HQVDP_MBX_STARTUP_CTRL1 (HQVDP_MBX + 0x0014) /* 0x000E4014 */
51 #define HQVDP_MBX_STARTUP_CTRL2 (HQVDP_MBX + 0x0018) /* 0x000E4018 */
52 #define HQVDP_MBX_GP_STATUS (HQVDP_MBX + 0x001C) /* 0x000E401C */
53 #define HQVDP_MBX_NEXT_CMD (HQVDP_MBX + 0x0020) /* 0x000E4020 */
54 #define HQVDP_MBX_CURRENT_CMD (HQVDP_MBX + 0x0024) /* 0x000E4024 */
55 #define HQVDP_MBX_SOFT_VSYNC (HQVDP_MBX + 0x0028) /* 0x000E4028 */
56
57 /* Plugs config */
58 #define PLUG_CONTROL_ENABLE 0x00000001
59 #define PLUG_PAGE_SIZE_256 0x00000002
60 #define PLUG_MIN_OPC_8 0x00000003
61 #define PLUG_MAX_OPC_64 0x00000006
62 #define PLUG_MAX_CHK_2X 0x00000001
63 #define PLUG_MAX_MSG_1X 0x00000000
64 #define PLUG_MIN_SPACE_1 0x00000000
65
66 /* SW reset CTRL */
67 #define SW_RESET_CTRL_FULL BIT(0)
68 #define SW_RESET_CTRL_CORE BIT(1)
69
70 /* Startup ctrl 1 */
71 #define STARTUP_CTRL1_RST_DONE BIT(0)
72 #define STARTUP_CTRL1_AUTH_IDLE BIT(2)
73
74 /* Startup ctrl 2 */
75 #define STARTUP_CTRL2_FETCH_EN BIT(1)
76
77 /* Info xP70 */
78 #define INFO_XP70_FW_READY BIT(15)
79 #define INFO_XP70_FW_PROCESSING BIT(14)
80 #define INFO_XP70_FW_INITQUEUES BIT(13)
81
82 /* SOFT_VSYNC */
83 #define SOFT_VSYNC_HW 0x00000000
84 #define SOFT_VSYNC_SW_CMD 0x00000001
85 #define SOFT_VSYNC_SW_CTRL_IRQ 0x00000003
86
87 /* Reset & boot poll config */
88 #define POLL_MAX_ATTEMPT 50
89 #define POLL_DELAY_MS 20
90
91 #define SCALE_FACTOR 8192
92 #define SCALE_MAX_FOR_LEG_LUT_F 4096
93 #define SCALE_MAX_FOR_LEG_LUT_E 4915
94 #define SCALE_MAX_FOR_LEG_LUT_D 6654
95 #define SCALE_MAX_FOR_LEG_LUT_C 8192
96
97 enum sti_hvsrc_orient {
98 HVSRC_HORI,
99 HVSRC_VERT
100 };
101
102 /* Command structures */
103 struct sti_hqvdp_top {
104 u32 config;
105 u32 mem_format;
106 u32 current_luma;
107 u32 current_enh_luma;
108 u32 current_right_luma;
109 u32 current_enh_right_luma;
110 u32 current_chroma;
111 u32 current_enh_chroma;
112 u32 current_right_chroma;
113 u32 current_enh_right_chroma;
114 u32 output_luma;
115 u32 output_chroma;
116 u32 luma_src_pitch;
117 u32 luma_enh_src_pitch;
118 u32 luma_right_src_pitch;
119 u32 luma_enh_right_src_pitch;
120 u32 chroma_src_pitch;
121 u32 chroma_enh_src_pitch;
122 u32 chroma_right_src_pitch;
123 u32 chroma_enh_right_src_pitch;
124 u32 luma_processed_pitch;
125 u32 chroma_processed_pitch;
126 u32 input_frame_size;
127 u32 input_viewport_ori;
128 u32 input_viewport_ori_right;
129 u32 input_viewport_size;
130 u32 left_view_border_width;
131 u32 right_view_border_width;
132 u32 left_view_3d_offset_width;
133 u32 right_view_3d_offset_width;
134 u32 side_stripe_color;
135 u32 crc_reset_ctrl;
136 };
137
138 /* Configs for interlaced : no IT, no pass thru, 3 fields */
139 #define TOP_CONFIG_INTER_BTM 0x00000000
140 #define TOP_CONFIG_INTER_TOP 0x00000002
141
142 /* Config for progressive : no IT, no pass thru, 3 fields */
143 #define TOP_CONFIG_PROGRESSIVE 0x00000001
144
145 /* Default MemFormat: in=420_raster_dual out=444_raster;opaque Mem2Tv mode */
146 #define TOP_MEM_FORMAT_DFLT 0x00018060
147
148 /* Min/Max size */
149 #define MAX_WIDTH 0x1FFF
150 #define MAX_HEIGHT 0x0FFF
151 #define MIN_WIDTH 0x0030
152 #define MIN_HEIGHT 0x0010
153
154 struct sti_hqvdp_vc1re {
155 u32 ctrl_prv_csdi;
156 u32 ctrl_cur_csdi;
157 u32 ctrl_nxt_csdi;
158 u32 ctrl_cur_fmd;
159 u32 ctrl_nxt_fmd;
160 };
161
162 struct sti_hqvdp_fmd {
163 u32 config;
164 u32 viewport_ori;
165 u32 viewport_size;
166 u32 next_next_luma;
167 u32 next_next_right_luma;
168 u32 next_next_next_luma;
169 u32 next_next_next_right_luma;
170 u32 threshold_scd;
171 u32 threshold_rfd;
172 u32 threshold_move;
173 u32 threshold_cfd;
174 };
175
176 struct sti_hqvdp_csdi {
177 u32 config;
178 u32 config2;
179 u32 dcdi_config;
180 u32 prev_luma;
181 u32 prev_enh_luma;
182 u32 prev_right_luma;
183 u32 prev_enh_right_luma;
184 u32 next_luma;
185 u32 next_enh_luma;
186 u32 next_right_luma;
187 u32 next_enh_right_luma;
188 u32 prev_chroma;
189 u32 prev_enh_chroma;
190 u32 prev_right_chroma;
191 u32 prev_enh_right_chroma;
192 u32 next_chroma;
193 u32 next_enh_chroma;
194 u32 next_right_chroma;
195 u32 next_enh_right_chroma;
196 u32 prev_motion;
197 u32 prev_right_motion;
198 u32 cur_motion;
199 u32 cur_right_motion;
200 u32 next_motion;
201 u32 next_right_motion;
202 };
203
204 /* Config for progressive: by pass */
205 #define CSDI_CONFIG_PROG 0x00000000
206 /* Config for directional deinterlacing without motion */
207 #define CSDI_CONFIG_INTER_DIR 0x00000016
208 /* Additional configs for fader, blender, motion,... deinterlace algorithms */
209 #define CSDI_CONFIG2_DFLT 0x000001B3
210 #define CSDI_DCDI_CONFIG_DFLT 0x00203803
211
212 struct sti_hqvdp_hvsrc {
213 u32 hor_panoramic_ctrl;
214 u32 output_picture_size;
215 u32 init_horizontal;
216 u32 init_vertical;
217 u32 param_ctrl;
218 u32 yh_coef[NB_COEF];
219 u32 ch_coef[NB_COEF];
220 u32 yv_coef[NB_COEF];
221 u32 cv_coef[NB_COEF];
222 u32 hori_shift;
223 u32 vert_shift;
224 };
225
226 /* Default ParamCtrl: all controls enabled */
227 #define HVSRC_PARAM_CTRL_DFLT 0xFFFFFFFF
228
229 struct sti_hqvdp_iqi {
230 u32 config;
231 u32 demo_wind_size;
232 u32 pk_config;
233 u32 coeff0_coeff1;
234 u32 coeff2_coeff3;
235 u32 coeff4;
236 u32 pk_lut;
237 u32 pk_gain;
238 u32 pk_coring_level;
239 u32 cti_config;
240 u32 le_config;
241 u32 le_lut[64];
242 u32 con_bri;
243 u32 sat_gain;
244 u32 pxf_conf;
245 u32 default_color;
246 };
247
248 /* Default Config : IQI bypassed */
249 #define IQI_CONFIG_DFLT 0x00000001
250 /* Default Contrast & Brightness gain = 256 */
251 #define IQI_CON_BRI_DFLT 0x00000100
252 /* Default Saturation gain = 256 */
253 #define IQI_SAT_GAIN_DFLT 0x00000100
254 /* Default PxfConf : P2I bypassed */
255 #define IQI_PXF_CONF_DFLT 0x00000001
256
257 struct sti_hqvdp_top_status {
258 u32 processing_time;
259 u32 input_y_crc;
260 u32 input_uv_crc;
261 };
262
263 struct sti_hqvdp_fmd_status {
264 u32 fmd_repeat_move_status;
265 u32 fmd_scene_count_status;
266 u32 cfd_sum;
267 u32 field_sum;
268 u32 next_y_fmd_crc;
269 u32 next_next_y_fmd_crc;
270 u32 next_next_next_y_fmd_crc;
271 };
272
273 struct sti_hqvdp_csdi_status {
274 u32 prev_y_csdi_crc;
275 u32 cur_y_csdi_crc;
276 u32 next_y_csdi_crc;
277 u32 prev_uv_csdi_crc;
278 u32 cur_uv_csdi_crc;
279 u32 next_uv_csdi_crc;
280 u32 y_csdi_crc;
281 u32 uv_csdi_crc;
282 u32 uv_cup_crc;
283 u32 mot_csdi_crc;
284 u32 mot_cur_csdi_crc;
285 u32 mot_prev_csdi_crc;
286 };
287
288 struct sti_hqvdp_hvsrc_status {
289 u32 y_hvsrc_crc;
290 u32 u_hvsrc_crc;
291 u32 v_hvsrc_crc;
292 };
293
294 struct sti_hqvdp_iqi_status {
295 u32 pxf_it_status;
296 u32 y_iqi_crc;
297 u32 u_iqi_crc;
298 u32 v_iqi_crc;
299 };
300
301 /* Main commands. We use 2 commands one being processed by the firmware, one
302 * ready to be fetched upon next Vsync*/
303 #define NB_VDP_CMD 2
304
305 struct sti_hqvdp_cmd {
306 struct sti_hqvdp_top top;
307 struct sti_hqvdp_vc1re vc1re;
308 struct sti_hqvdp_fmd fmd;
309 struct sti_hqvdp_csdi csdi;
310 struct sti_hqvdp_hvsrc hvsrc;
311 struct sti_hqvdp_iqi iqi;
312 struct sti_hqvdp_top_status top_status;
313 struct sti_hqvdp_fmd_status fmd_status;
314 struct sti_hqvdp_csdi_status csdi_status;
315 struct sti_hqvdp_hvsrc_status hvsrc_status;
316 struct sti_hqvdp_iqi_status iqi_status;
317 };
318
319 /*
320 * STI HQVDP structure
321 *
322 * @dev: driver device
323 * @drm_dev: the drm device
324 * @regs: registers
325 * @plane: plane structure for hqvdp it self
326 * @clk: IP clock
327 * @clk_pix_main: pix main clock
328 * @reset: reset control
329 * @vtg_nb: notifier to handle VTG Vsync
330 * @btm_field_pending: is there any bottom field (interlaced frame) to display
331 * @hqvdp_cmd: buffer of commands
332 * @hqvdp_cmd_paddr: physical address of hqvdp_cmd
333 * @vtg: vtg for main data path
334 * @xp70_initialized: true if xp70 is already initialized
335 * @vtg_registered: true if registered to VTG
336 */
337 struct sti_hqvdp {
338 struct device *dev;
339 struct drm_device *drm_dev;
340 void __iomem *regs;
341 struct sti_plane plane;
342 struct clk *clk;
343 struct clk *clk_pix_main;
344 struct reset_control *reset;
345 struct notifier_block vtg_nb;
346 bool btm_field_pending;
347 void *hqvdp_cmd;
348 u32 hqvdp_cmd_paddr;
349 struct sti_vtg *vtg;
350 bool xp70_initialized;
351 bool vtg_registered;
352 };
353
354 #define to_sti_hqvdp(x) container_of(x, struct sti_hqvdp, plane)
355
356 static const uint32_t hqvdp_supported_formats[] = {
357 DRM_FORMAT_NV12,
358 };
359
360 /**
361 * sti_hqvdp_get_free_cmd
362 * @hqvdp: hqvdp structure
363 *
364 * Look for a hqvdp_cmd that is not being used (or about to be used) by the FW.
365 *
366 * RETURNS:
367 * the offset of the command to be used.
368 * -1 in error cases
369 */
370 static int sti_hqvdp_get_free_cmd(struct sti_hqvdp *hqvdp)
371 {
372 u32 curr_cmd, next_cmd;
373 u32 cmd = hqvdp->hqvdp_cmd_paddr;
374 int i;
375
376 curr_cmd = readl(hqvdp->regs + HQVDP_MBX_CURRENT_CMD);
377 next_cmd = readl(hqvdp->regs + HQVDP_MBX_NEXT_CMD);
378
379 for (i = 0; i < NB_VDP_CMD; i++) {
380 if ((cmd != curr_cmd) && (cmd != next_cmd))
381 return i * sizeof(struct sti_hqvdp_cmd);
382 cmd += sizeof(struct sti_hqvdp_cmd);
383 }
384
385 return -1;
386 }
387
388 /**
389 * sti_hqvdp_get_curr_cmd
390 * @hqvdp: hqvdp structure
391 *
392 * Look for the hqvdp_cmd that is being used by the FW.
393 *
394 * RETURNS:
395 * the offset of the command to be used.
396 * -1 in error cases
397 */
398 static int sti_hqvdp_get_curr_cmd(struct sti_hqvdp *hqvdp)
399 {
400 u32 curr_cmd;
401 u32 cmd = hqvdp->hqvdp_cmd_paddr;
402 unsigned int i;
403
404 curr_cmd = readl(hqvdp->regs + HQVDP_MBX_CURRENT_CMD);
405
406 for (i = 0; i < NB_VDP_CMD; i++) {
407 if (cmd == curr_cmd)
408 return i * sizeof(struct sti_hqvdp_cmd);
409
410 cmd += sizeof(struct sti_hqvdp_cmd);
411 }
412
413 return -1;
414 }
415
416 /**
417 * sti_hqvdp_get_next_cmd
418 * @hqvdp: hqvdp structure
419 *
420 * Look for the next hqvdp_cmd that will be used by the FW.
421 *
422 * RETURNS:
423 * the offset of the next command that will be used.
424 * -1 in error cases
425 */
426 static int sti_hqvdp_get_next_cmd(struct sti_hqvdp *hqvdp)
427 {
428 int next_cmd;
429 dma_addr_t cmd = hqvdp->hqvdp_cmd_paddr;
430 unsigned int i;
431
432 next_cmd = readl(hqvdp->regs + HQVDP_MBX_NEXT_CMD);
433
434 for (i = 0; i < NB_VDP_CMD; i++) {
435 if (cmd == next_cmd)
436 return i * sizeof(struct sti_hqvdp_cmd);
437
438 cmd += sizeof(struct sti_hqvdp_cmd);
439 }
440
441 return -1;
442 }
443
444 #define DBGFS_DUMP(reg) seq_printf(s, "\n %-25s 0x%08X", #reg, \
445 readl(hqvdp->regs + reg))
446
447 static const char *hqvdp_dbg_get_lut(u32 *coef)
448 {
449 if (!memcmp(coef, coef_lut_a_legacy, 16))
450 return "LUT A";
451 if (!memcmp(coef, coef_lut_b, 16))
452 return "LUT B";
453 if (!memcmp(coef, coef_lut_c_y_legacy, 16))
454 return "LUT C Y";
455 if (!memcmp(coef, coef_lut_c_c_legacy, 16))
456 return "LUT C C";
457 if (!memcmp(coef, coef_lut_d_y_legacy, 16))
458 return "LUT D Y";
459 if (!memcmp(coef, coef_lut_d_c_legacy, 16))
460 return "LUT D C";
461 if (!memcmp(coef, coef_lut_e_y_legacy, 16))
462 return "LUT E Y";
463 if (!memcmp(coef, coef_lut_e_c_legacy, 16))
464 return "LUT E C";
465 if (!memcmp(coef, coef_lut_f_y_legacy, 16))
466 return "LUT F Y";
467 if (!memcmp(coef, coef_lut_f_c_legacy, 16))
468 return "LUT F C";
469 return "<UNKNOWN>";
470 }
471
472 static void hqvdp_dbg_dump_cmd(struct seq_file *s, struct sti_hqvdp_cmd *c)
473 {
474 int src_w, src_h, dst_w, dst_h;
475
476 seq_puts(s, "\n\tTOP:");
477 seq_printf(s, "\n\t %-20s 0x%08X", "Config", c->top.config);
478 switch (c->top.config) {
479 case TOP_CONFIG_PROGRESSIVE:
480 seq_puts(s, "\tProgressive");
481 break;
482 case TOP_CONFIG_INTER_TOP:
483 seq_puts(s, "\tInterlaced, top field");
484 break;
485 case TOP_CONFIG_INTER_BTM:
486 seq_puts(s, "\tInterlaced, bottom field");
487 break;
488 default:
489 seq_puts(s, "\t<UNKNOWN>");
490 break;
491 }
492
493 seq_printf(s, "\n\t %-20s 0x%08X", "MemFormat", c->top.mem_format);
494 seq_printf(s, "\n\t %-20s 0x%08X", "CurrentY", c->top.current_luma);
495 seq_printf(s, "\n\t %-20s 0x%08X", "CurrentC", c->top.current_chroma);
496 seq_printf(s, "\n\t %-20s 0x%08X", "YSrcPitch", c->top.luma_src_pitch);
497 seq_printf(s, "\n\t %-20s 0x%08X", "CSrcPitch",
498 c->top.chroma_src_pitch);
499 seq_printf(s, "\n\t %-20s 0x%08X", "InputFrameSize",
500 c->top.input_frame_size);
501 seq_printf(s, "\t%dx%d",
502 c->top.input_frame_size & 0x0000FFFF,
503 c->top.input_frame_size >> 16);
504 seq_printf(s, "\n\t %-20s 0x%08X", "InputViewportSize",
505 c->top.input_viewport_size);
506 src_w = c->top.input_viewport_size & 0x0000FFFF;
507 src_h = c->top.input_viewport_size >> 16;
508 seq_printf(s, "\t%dx%d", src_w, src_h);
509
510 seq_puts(s, "\n\tHVSRC:");
511 seq_printf(s, "\n\t %-20s 0x%08X", "OutputPictureSize",
512 c->hvsrc.output_picture_size);
513 dst_w = c->hvsrc.output_picture_size & 0x0000FFFF;
514 dst_h = c->hvsrc.output_picture_size >> 16;
515 seq_printf(s, "\t%dx%d", dst_w, dst_h);
516 seq_printf(s, "\n\t %-20s 0x%08X", "ParamCtrl", c->hvsrc.param_ctrl);
517
518 seq_printf(s, "\n\t %-20s %s", "yh_coef",
519 hqvdp_dbg_get_lut(c->hvsrc.yh_coef));
520 seq_printf(s, "\n\t %-20s %s", "ch_coef",
521 hqvdp_dbg_get_lut(c->hvsrc.ch_coef));
522 seq_printf(s, "\n\t %-20s %s", "yv_coef",
523 hqvdp_dbg_get_lut(c->hvsrc.yv_coef));
524 seq_printf(s, "\n\t %-20s %s", "cv_coef",
525 hqvdp_dbg_get_lut(c->hvsrc.cv_coef));
526
527 seq_printf(s, "\n\t %-20s", "ScaleH");
528 if (dst_w > src_w)
529 seq_printf(s, " %d/1", dst_w / src_w);
530 else
531 seq_printf(s, " 1/%d", src_w / dst_w);
532
533 seq_printf(s, "\n\t %-20s", "tScaleV");
534 if (dst_h > src_h)
535 seq_printf(s, " %d/1", dst_h / src_h);
536 else
537 seq_printf(s, " 1/%d", src_h / dst_h);
538
539 seq_puts(s, "\n\tCSDI:");
540 seq_printf(s, "\n\t %-20s 0x%08X\t", "Config", c->csdi.config);
541 switch (c->csdi.config) {
542 case CSDI_CONFIG_PROG:
543 seq_puts(s, "Bypass");
544 break;
545 case CSDI_CONFIG_INTER_DIR:
546 seq_puts(s, "Deinterlace, directional");
547 break;
548 default:
549 seq_puts(s, "<UNKNOWN>");
550 break;
551 }
552
553 seq_printf(s, "\n\t %-20s 0x%08X", "Config2", c->csdi.config2);
554 seq_printf(s, "\n\t %-20s 0x%08X", "DcdiConfig", c->csdi.dcdi_config);
555 }
556
557 static int hqvdp_dbg_show(struct seq_file *s, void *data)
558 {
559 struct drm_info_node *node = s->private;
560 struct sti_hqvdp *hqvdp = (struct sti_hqvdp *)node->info_ent->data;
561 int cmd, cmd_offset, infoxp70;
562 void *virt;
563
564 seq_printf(s, "%s: (vaddr = 0x%p)",
565 sti_plane_to_str(&hqvdp->plane), hqvdp->regs);
566
567 DBGFS_DUMP(HQVDP_MBX_IRQ_TO_XP70);
568 DBGFS_DUMP(HQVDP_MBX_INFO_HOST);
569 DBGFS_DUMP(HQVDP_MBX_IRQ_TO_HOST);
570 DBGFS_DUMP(HQVDP_MBX_INFO_XP70);
571 infoxp70 = readl(hqvdp->regs + HQVDP_MBX_INFO_XP70);
572 seq_puts(s, "\tFirmware state: ");
573 if (infoxp70 & INFO_XP70_FW_READY)
574 seq_puts(s, "idle and ready");
575 else if (infoxp70 & INFO_XP70_FW_PROCESSING)
576 seq_puts(s, "processing a picture");
577 else if (infoxp70 & INFO_XP70_FW_INITQUEUES)
578 seq_puts(s, "programming queues");
579 else
580 seq_puts(s, "NOT READY");
581
582 DBGFS_DUMP(HQVDP_MBX_SW_RESET_CTRL);
583 DBGFS_DUMP(HQVDP_MBX_STARTUP_CTRL1);
584 if (readl(hqvdp->regs + HQVDP_MBX_STARTUP_CTRL1)
585 & STARTUP_CTRL1_RST_DONE)
586 seq_puts(s, "\tReset is done");
587 else
588 seq_puts(s, "\tReset is NOT done");
589 DBGFS_DUMP(HQVDP_MBX_STARTUP_CTRL2);
590 if (readl(hqvdp->regs + HQVDP_MBX_STARTUP_CTRL2)
591 & STARTUP_CTRL2_FETCH_EN)
592 seq_puts(s, "\tFetch is enabled");
593 else
594 seq_puts(s, "\tFetch is NOT enabled");
595 DBGFS_DUMP(HQVDP_MBX_GP_STATUS);
596 DBGFS_DUMP(HQVDP_MBX_NEXT_CMD);
597 DBGFS_DUMP(HQVDP_MBX_CURRENT_CMD);
598 DBGFS_DUMP(HQVDP_MBX_SOFT_VSYNC);
599 if (!(readl(hqvdp->regs + HQVDP_MBX_SOFT_VSYNC) & 3))
600 seq_puts(s, "\tHW Vsync");
601 else
602 seq_puts(s, "\tSW Vsync ?!?!");
603
604 /* Last command */
605 cmd = readl(hqvdp->regs + HQVDP_MBX_CURRENT_CMD);
606 cmd_offset = sti_hqvdp_get_curr_cmd(hqvdp);
607 if (cmd_offset == -1) {
608 seq_puts(s, "\n\n Last command: unknown");
609 } else {
610 virt = hqvdp->hqvdp_cmd + cmd_offset;
611 seq_printf(s, "\n\n Last command: address @ 0x%x (0x%p)",
612 cmd, virt);
613 hqvdp_dbg_dump_cmd(s, (struct sti_hqvdp_cmd *)virt);
614 }
615
616 /* Next command */
617 cmd = readl(hqvdp->regs + HQVDP_MBX_NEXT_CMD);
618 cmd_offset = sti_hqvdp_get_next_cmd(hqvdp);
619 if (cmd_offset == -1) {
620 seq_puts(s, "\n\n Next command: unknown");
621 } else {
622 virt = hqvdp->hqvdp_cmd + cmd_offset;
623 seq_printf(s, "\n\n Next command address: @ 0x%x (0x%p)",
624 cmd, virt);
625 hqvdp_dbg_dump_cmd(s, (struct sti_hqvdp_cmd *)virt);
626 }
627
628 seq_putc(s, '\n');
629 return 0;
630 }
631
632 static struct drm_info_list hqvdp_debugfs_files[] = {
633 { "hqvdp", hqvdp_dbg_show, 0, NULL },
634 };
635
636 static int hqvdp_debugfs_init(struct sti_hqvdp *hqvdp, struct drm_minor *minor)
637 {
638 unsigned int i;
639
640 for (i = 0; i < ARRAY_SIZE(hqvdp_debugfs_files); i++)
641 hqvdp_debugfs_files[i].data = hqvdp;
642
643 return drm_debugfs_create_files(hqvdp_debugfs_files,
644 ARRAY_SIZE(hqvdp_debugfs_files),
645 minor->debugfs_root, minor);
646 }
647
648 /**
649 * sti_hqvdp_update_hvsrc
650 * @orient: horizontal or vertical
651 * @scale: scaling/zoom factor
652 * @hvsrc: the structure containing the LUT coef
653 *
654 * Update the Y and C Lut coef, as well as the shift param
655 *
656 * RETURNS:
657 * None.
658 */
659 static void sti_hqvdp_update_hvsrc(enum sti_hvsrc_orient orient, int scale,
660 struct sti_hqvdp_hvsrc *hvsrc)
661 {
662 const int *coef_c, *coef_y;
663 int shift_c, shift_y;
664
665 /* Get the appropriate coef tables */
666 if (scale < SCALE_MAX_FOR_LEG_LUT_F) {
667 coef_y = coef_lut_f_y_legacy;
668 coef_c = coef_lut_f_c_legacy;
669 shift_y = SHIFT_LUT_F_Y_LEGACY;
670 shift_c = SHIFT_LUT_F_C_LEGACY;
671 } else if (scale < SCALE_MAX_FOR_LEG_LUT_E) {
672 coef_y = coef_lut_e_y_legacy;
673 coef_c = coef_lut_e_c_legacy;
674 shift_y = SHIFT_LUT_E_Y_LEGACY;
675 shift_c = SHIFT_LUT_E_C_LEGACY;
676 } else if (scale < SCALE_MAX_FOR_LEG_LUT_D) {
677 coef_y = coef_lut_d_y_legacy;
678 coef_c = coef_lut_d_c_legacy;
679 shift_y = SHIFT_LUT_D_Y_LEGACY;
680 shift_c = SHIFT_LUT_D_C_LEGACY;
681 } else if (scale < SCALE_MAX_FOR_LEG_LUT_C) {
682 coef_y = coef_lut_c_y_legacy;
683 coef_c = coef_lut_c_c_legacy;
684 shift_y = SHIFT_LUT_C_Y_LEGACY;
685 shift_c = SHIFT_LUT_C_C_LEGACY;
686 } else if (scale == SCALE_MAX_FOR_LEG_LUT_C) {
687 coef_y = coef_c = coef_lut_b;
688 shift_y = shift_c = SHIFT_LUT_B;
689 } else {
690 coef_y = coef_c = coef_lut_a_legacy;
691 shift_y = shift_c = SHIFT_LUT_A_LEGACY;
692 }
693
694 if (orient == HVSRC_HORI) {
695 hvsrc->hori_shift = (shift_c << 16) | shift_y;
696 memcpy(hvsrc->yh_coef, coef_y, sizeof(hvsrc->yh_coef));
697 memcpy(hvsrc->ch_coef, coef_c, sizeof(hvsrc->ch_coef));
698 } else {
699 hvsrc->vert_shift = (shift_c << 16) | shift_y;
700 memcpy(hvsrc->yv_coef, coef_y, sizeof(hvsrc->yv_coef));
701 memcpy(hvsrc->cv_coef, coef_c, sizeof(hvsrc->cv_coef));
702 }
703 }
704
705 /**
706 * sti_hqvdp_check_hw_scaling
707 * @hqvdp: hqvdp pointer
708 * @mode: display mode with timing constraints
709 * @src_w: source width
710 * @src_h: source height
711 * @dst_w: destination width
712 * @dst_h: destination height
713 *
714 * Check if the HW is able to perform the scaling request
715 * The firmware scaling limitation is "CEIL(1/Zy) <= FLOOR(LFW)" where:
716 * Zy = OutputHeight / InputHeight
717 * LFW = (Tx * IPClock) / (MaxNbCycles * Cp)
718 * Tx : Total video mode horizontal resolution
719 * IPClock : HQVDP IP clock (Mhz)
720 * MaxNbCycles: max(InputWidth, OutputWidth)
721 * Cp: Video mode pixel clock (Mhz)
722 *
723 * RETURNS:
724 * True if the HW can scale.
725 */
726 static bool sti_hqvdp_check_hw_scaling(struct sti_hqvdp *hqvdp,
727 struct drm_display_mode *mode,
728 int src_w, int src_h,
729 int dst_w, int dst_h)
730 {
731 unsigned long lfw;
732 unsigned int inv_zy;
733
734 lfw = mode->htotal * (clk_get_rate(hqvdp->clk) / 1000000);
735 lfw /= max(src_w, dst_w) * mode->clock / 1000;
736
737 inv_zy = DIV_ROUND_UP(src_h, dst_h);
738
739 return (inv_zy <= lfw) ? true : false;
740 }
741
742 /**
743 * sti_hqvdp_disable
744 * @hqvdp: hqvdp pointer
745 *
746 * Disables the HQVDP plane
747 */
748 static void sti_hqvdp_disable(struct sti_hqvdp *hqvdp)
749 {
750 int i;
751
752 DRM_DEBUG_DRIVER("%s\n", sti_plane_to_str(&hqvdp->plane));
753
754 /* Unregister VTG Vsync callback */
755 if (sti_vtg_unregister_client(hqvdp->vtg, &hqvdp->vtg_nb))
756 DRM_DEBUG_DRIVER("Warning: cannot unregister VTG notifier\n");
757
758 /* Set next cmd to NULL */
759 writel(0, hqvdp->regs + HQVDP_MBX_NEXT_CMD);
760
761 for (i = 0; i < POLL_MAX_ATTEMPT; i++) {
762 if (readl(hqvdp->regs + HQVDP_MBX_INFO_XP70)
763 & INFO_XP70_FW_READY)
764 break;
765 msleep(POLL_DELAY_MS);
766 }
767
768 /* VTG can stop now */
769 clk_disable_unprepare(hqvdp->clk_pix_main);
770
771 if (i == POLL_MAX_ATTEMPT)
772 DRM_ERROR("XP70 could not revert to idle\n");
773
774 hqvdp->plane.status = STI_PLANE_DISABLED;
775 hqvdp->vtg_registered = false;
776 }
777
778 /**
779 * sti_vdp_vtg_cb
780 * @nb: notifier block
781 * @evt: event message
782 * @data: private data
783 *
784 * Handle VTG Vsync event, display pending bottom field
785 *
786 * RETURNS:
787 * 0 on success.
788 */
789 static int sti_hqvdp_vtg_cb(struct notifier_block *nb, unsigned long evt, void *data)
790 {
791 struct sti_hqvdp *hqvdp = container_of(nb, struct sti_hqvdp, vtg_nb);
792 int btm_cmd_offset, top_cmd_offest;
793 struct sti_hqvdp_cmd *btm_cmd, *top_cmd;
794
795 if ((evt != VTG_TOP_FIELD_EVENT) && (evt != VTG_BOTTOM_FIELD_EVENT)) {
796 DRM_DEBUG_DRIVER("Unknown event\n");
797 return 0;
798 }
799
800 if (hqvdp->plane.status == STI_PLANE_FLUSHING) {
801 /* disable need to be synchronize on vsync event */
802 DRM_DEBUG_DRIVER("Vsync event received => disable %s\n",
803 sti_plane_to_str(&hqvdp->plane));
804
805 sti_hqvdp_disable(hqvdp);
806 }
807
808 if (hqvdp->btm_field_pending) {
809 /* Create the btm field command from the current one */
810 btm_cmd_offset = sti_hqvdp_get_free_cmd(hqvdp);
811 top_cmd_offest = sti_hqvdp_get_curr_cmd(hqvdp);
812 if ((btm_cmd_offset == -1) || (top_cmd_offest == -1)) {
813 DRM_DEBUG_DRIVER("Warning: no cmd, will skip field\n");
814 return -EBUSY;
815 }
816
817 btm_cmd = hqvdp->hqvdp_cmd + btm_cmd_offset;
818 top_cmd = hqvdp->hqvdp_cmd + top_cmd_offest;
819
820 memcpy(btm_cmd, top_cmd, sizeof(*btm_cmd));
821
822 btm_cmd->top.config = TOP_CONFIG_INTER_BTM;
823 btm_cmd->top.current_luma +=
824 btm_cmd->top.luma_src_pitch / 2;
825 btm_cmd->top.current_chroma +=
826 btm_cmd->top.chroma_src_pitch / 2;
827
828 /* Post the command to mailbox */
829 writel(hqvdp->hqvdp_cmd_paddr + btm_cmd_offset,
830 hqvdp->regs + HQVDP_MBX_NEXT_CMD);
831
832 hqvdp->btm_field_pending = false;
833
834 dev_dbg(hqvdp->dev, "%s Posted command:0x%x\n",
835 __func__, hqvdp->hqvdp_cmd_paddr);
836
837 sti_plane_update_fps(&hqvdp->plane, false, true);
838 }
839
840 return 0;
841 }
842
843 static void sti_hqvdp_init(struct sti_hqvdp *hqvdp)
844 {
845 int size;
846 dma_addr_t dma_addr;
847
848 hqvdp->vtg_nb.notifier_call = sti_hqvdp_vtg_cb;
849
850 /* Allocate memory for the VDP commands */
851 size = NB_VDP_CMD * sizeof(struct sti_hqvdp_cmd);
852 hqvdp->hqvdp_cmd = dma_alloc_wc(hqvdp->dev, size,
853 &dma_addr,
854 GFP_KERNEL | GFP_DMA);
855 if (!hqvdp->hqvdp_cmd) {
856 DRM_ERROR("Failed to allocate memory for VDP cmd\n");
857 return;
858 }
859
860 hqvdp->hqvdp_cmd_paddr = (u32)dma_addr;
861 memset(hqvdp->hqvdp_cmd, 0, size);
862 }
863
864 static void sti_hqvdp_init_plugs(struct sti_hqvdp *hqvdp)
865 {
866 /* Configure Plugs (same for RD & WR) */
867 writel(PLUG_PAGE_SIZE_256, hqvdp->regs + HQVDP_RD_PLUG_PAGE_SIZE);
868 writel(PLUG_MIN_OPC_8, hqvdp->regs + HQVDP_RD_PLUG_MIN_OPC);
869 writel(PLUG_MAX_OPC_64, hqvdp->regs + HQVDP_RD_PLUG_MAX_OPC);
870 writel(PLUG_MAX_CHK_2X, hqvdp->regs + HQVDP_RD_PLUG_MAX_CHK);
871 writel(PLUG_MAX_MSG_1X, hqvdp->regs + HQVDP_RD_PLUG_MAX_MSG);
872 writel(PLUG_MIN_SPACE_1, hqvdp->regs + HQVDP_RD_PLUG_MIN_SPACE);
873 writel(PLUG_CONTROL_ENABLE, hqvdp->regs + HQVDP_RD_PLUG_CONTROL);
874
875 writel(PLUG_PAGE_SIZE_256, hqvdp->regs + HQVDP_WR_PLUG_PAGE_SIZE);
876 writel(PLUG_MIN_OPC_8, hqvdp->regs + HQVDP_WR_PLUG_MIN_OPC);
877 writel(PLUG_MAX_OPC_64, hqvdp->regs + HQVDP_WR_PLUG_MAX_OPC);
878 writel(PLUG_MAX_CHK_2X, hqvdp->regs + HQVDP_WR_PLUG_MAX_CHK);
879 writel(PLUG_MAX_MSG_1X, hqvdp->regs + HQVDP_WR_PLUG_MAX_MSG);
880 writel(PLUG_MIN_SPACE_1, hqvdp->regs + HQVDP_WR_PLUG_MIN_SPACE);
881 writel(PLUG_CONTROL_ENABLE, hqvdp->regs + HQVDP_WR_PLUG_CONTROL);
882 }
883
884 /**
885 * sti_hqvdp_start_xp70
886 * @hqvdp: hqvdp pointer
887 *
888 * Run the xP70 initialization sequence
889 */
890 static void sti_hqvdp_start_xp70(struct sti_hqvdp *hqvdp)
891 {
892 const struct firmware *firmware;
893 u32 *fw_rd_plug, *fw_wr_plug, *fw_pmem, *fw_dmem;
894 u8 *data;
895 int i;
896 struct fw_header {
897 int rd_size;
898 int wr_size;
899 int pmem_size;
900 int dmem_size;
901 } *header;
902
903 DRM_DEBUG_DRIVER("\n");
904
905 if (hqvdp->xp70_initialized) {
906 DRM_DEBUG_DRIVER("HQVDP XP70 already initialized\n");
907 return;
908 }
909
910 /* Request firmware */
911 if (request_firmware(&firmware, HQVDP_FMW_NAME, hqvdp->dev)) {
912 DRM_ERROR("Can't get HQVDP firmware\n");
913 return;
914 }
915
916 /* Check firmware parts */
917 if (!firmware) {
918 DRM_ERROR("Firmware not available\n");
919 return;
920 }
921
922 header = (struct fw_header *)firmware->data;
923 if (firmware->size < sizeof(*header)) {
924 DRM_ERROR("Invalid firmware size (%d)\n", firmware->size);
925 goto out;
926 }
927 if ((sizeof(*header) + header->rd_size + header->wr_size +
928 header->pmem_size + header->dmem_size) != firmware->size) {
929 DRM_ERROR("Invalid fmw structure (%d+%d+%d+%d+%d != %d)\n",
930 sizeof(*header), header->rd_size, header->wr_size,
931 header->pmem_size, header->dmem_size,
932 firmware->size);
933 goto out;
934 }
935
936 data = (u8 *)firmware->data;
937 data += sizeof(*header);
938 fw_rd_plug = (void *)data;
939 data += header->rd_size;
940 fw_wr_plug = (void *)data;
941 data += header->wr_size;
942 fw_pmem = (void *)data;
943 data += header->pmem_size;
944 fw_dmem = (void *)data;
945
946 /* Enable clock */
947 if (clk_prepare_enable(hqvdp->clk))
948 DRM_ERROR("Failed to prepare/enable HQVDP clk\n");
949
950 /* Reset */
951 writel(SW_RESET_CTRL_FULL, hqvdp->regs + HQVDP_MBX_SW_RESET_CTRL);
952
953 for (i = 0; i < POLL_MAX_ATTEMPT; i++) {
954 if (readl(hqvdp->regs + HQVDP_MBX_STARTUP_CTRL1)
955 & STARTUP_CTRL1_RST_DONE)
956 break;
957 msleep(POLL_DELAY_MS);
958 }
959 if (i == POLL_MAX_ATTEMPT) {
960 DRM_ERROR("Could not reset\n");
961 clk_disable_unprepare(hqvdp->clk);
962 goto out;
963 }
964
965 /* Init Read & Write plugs */
966 for (i = 0; i < header->rd_size / 4; i++)
967 writel(fw_rd_plug[i], hqvdp->regs + HQVDP_RD_PLUG + i * 4);
968 for (i = 0; i < header->wr_size / 4; i++)
969 writel(fw_wr_plug[i], hqvdp->regs + HQVDP_WR_PLUG + i * 4);
970
971 sti_hqvdp_init_plugs(hqvdp);
972
973 /* Authorize Idle Mode */
974 writel(STARTUP_CTRL1_AUTH_IDLE, hqvdp->regs + HQVDP_MBX_STARTUP_CTRL1);
975
976 /* Prevent VTG interruption during the boot */
977 writel(SOFT_VSYNC_SW_CTRL_IRQ, hqvdp->regs + HQVDP_MBX_SOFT_VSYNC);
978 writel(0, hqvdp->regs + HQVDP_MBX_NEXT_CMD);
979
980 /* Download PMEM & DMEM */
981 for (i = 0; i < header->pmem_size / 4; i++)
982 writel(fw_pmem[i], hqvdp->regs + HQVDP_PMEM + i * 4);
983 for (i = 0; i < header->dmem_size / 4; i++)
984 writel(fw_dmem[i], hqvdp->regs + HQVDP_DMEM + i * 4);
985
986 /* Enable fetch */
987 writel(STARTUP_CTRL2_FETCH_EN, hqvdp->regs + HQVDP_MBX_STARTUP_CTRL2);
988
989 /* Wait end of boot */
990 for (i = 0; i < POLL_MAX_ATTEMPT; i++) {
991 if (readl(hqvdp->regs + HQVDP_MBX_INFO_XP70)
992 & INFO_XP70_FW_READY)
993 break;
994 msleep(POLL_DELAY_MS);
995 }
996 if (i == POLL_MAX_ATTEMPT) {
997 DRM_ERROR("Could not boot\n");
998 clk_disable_unprepare(hqvdp->clk);
999 goto out;
1000 }
1001
1002 /* Launch Vsync */
1003 writel(SOFT_VSYNC_HW, hqvdp->regs + HQVDP_MBX_SOFT_VSYNC);
1004
1005 DRM_INFO("HQVDP XP70 initialized\n");
1006
1007 hqvdp->xp70_initialized = true;
1008
1009 out:
1010 release_firmware(firmware);
1011 }
1012
1013 static int sti_hqvdp_atomic_check(struct drm_plane *drm_plane,
1014 struct drm_plane_state *state)
1015 {
1016 struct sti_plane *plane = to_sti_plane(drm_plane);
1017 struct sti_hqvdp *hqvdp = to_sti_hqvdp(plane);
1018 struct drm_crtc *crtc = state->crtc;
1019 struct drm_framebuffer *fb = state->fb;
1020 struct drm_crtc_state *crtc_state;
1021 struct drm_display_mode *mode;
1022 int dst_x, dst_y, dst_w, dst_h;
1023 int src_x, src_y, src_w, src_h;
1024
1025 /* no need for further checks if the plane is being disabled */
1026 if (!crtc || !fb)
1027 return 0;
1028
1029 crtc_state = drm_atomic_get_crtc_state(state->state, crtc);
1030 mode = &crtc_state->mode;
1031 dst_x = state->crtc_x;
1032 dst_y = state->crtc_y;
1033 dst_w = clamp_val(state->crtc_w, 0, mode->hdisplay - dst_x);
1034 dst_h = clamp_val(state->crtc_h, 0, mode->vdisplay - dst_y);
1035 /* src_x are in 16.16 format */
1036 src_x = state->src_x >> 16;
1037 src_y = state->src_y >> 16;
1038 src_w = state->src_w >> 16;
1039 src_h = state->src_h >> 16;
1040
1041 if (mode->clock && !sti_hqvdp_check_hw_scaling(hqvdp, mode,
1042 src_w, src_h,
1043 dst_w, dst_h)) {
1044 DRM_ERROR("Scaling beyond HW capabilities\n");
1045 return -EINVAL;
1046 }
1047
1048 if (!drm_fb_cma_get_gem_obj(fb, 0)) {
1049 DRM_ERROR("Can't get CMA GEM object for fb\n");
1050 return -EINVAL;
1051 }
1052
1053 /*
1054 * Input / output size
1055 * Align to upper even value
1056 */
1057 dst_w = ALIGN(dst_w, 2);
1058 dst_h = ALIGN(dst_h, 2);
1059
1060 if ((src_w > MAX_WIDTH) || (src_w < MIN_WIDTH) ||
1061 (src_h > MAX_HEIGHT) || (src_h < MIN_HEIGHT) ||
1062 (dst_w > MAX_WIDTH) || (dst_w < MIN_WIDTH) ||
1063 (dst_h > MAX_HEIGHT) || (dst_h < MIN_HEIGHT)) {
1064 DRM_ERROR("Invalid in/out size %dx%d -> %dx%d\n",
1065 src_w, src_h,
1066 dst_w, dst_h);
1067 return -EINVAL;
1068 }
1069
1070 if (!hqvdp->xp70_initialized)
1071 /* Start HQVDP XP70 coprocessor */
1072 sti_hqvdp_start_xp70(hqvdp);
1073
1074 if (!hqvdp->vtg_registered) {
1075 /* Prevent VTG shutdown */
1076 if (clk_prepare_enable(hqvdp->clk_pix_main)) {
1077 DRM_ERROR("Failed to prepare/enable pix main clk\n");
1078 return -EINVAL;
1079 }
1080
1081 /* Register VTG Vsync callback to handle bottom fields */
1082 if (sti_vtg_register_client(hqvdp->vtg,
1083 &hqvdp->vtg_nb,
1084 crtc)) {
1085 DRM_ERROR("Cannot register VTG notifier\n");
1086 clk_disable_unprepare(hqvdp->clk_pix_main);
1087 return -EINVAL;
1088 }
1089 hqvdp->vtg_registered = true;
1090 }
1091
1092 DRM_DEBUG_KMS("CRTC:%d (%s) drm plane:%d (%s)\n",
1093 crtc->base.id, sti_mixer_to_str(to_sti_mixer(crtc)),
1094 drm_plane->base.id, sti_plane_to_str(plane));
1095 DRM_DEBUG_KMS("%s dst=(%dx%d)@(%d,%d) - src=(%dx%d)@(%d,%d)\n",
1096 sti_plane_to_str(plane),
1097 dst_w, dst_h, dst_x, dst_y,
1098 src_w, src_h, src_x, src_y);
1099
1100 return 0;
1101 }
1102
1103 static void sti_hqvdp_atomic_update(struct drm_plane *drm_plane,
1104 struct drm_plane_state *oldstate)
1105 {
1106 struct drm_plane_state *state = drm_plane->state;
1107 struct sti_plane *plane = to_sti_plane(drm_plane);
1108 struct sti_hqvdp *hqvdp = to_sti_hqvdp(plane);
1109 struct drm_crtc *crtc = state->crtc;
1110 struct drm_framebuffer *fb = state->fb;
1111 struct drm_display_mode *mode;
1112 int dst_x, dst_y, dst_w, dst_h;
1113 int src_x, src_y, src_w, src_h;
1114 struct drm_gem_cma_object *cma_obj;
1115 struct sti_hqvdp_cmd *cmd;
1116 int scale_h, scale_v;
1117 int cmd_offset;
1118
1119 if (!crtc || !fb)
1120 return;
1121
1122 if ((oldstate->fb == state->fb) &&
1123 (oldstate->crtc_x == state->crtc_x) &&
1124 (oldstate->crtc_y == state->crtc_y) &&
1125 (oldstate->crtc_w == state->crtc_w) &&
1126 (oldstate->crtc_h == state->crtc_h) &&
1127 (oldstate->src_x == state->src_x) &&
1128 (oldstate->src_y == state->src_y) &&
1129 (oldstate->src_w == state->src_w) &&
1130 (oldstate->src_h == state->src_h)) {
1131 /* No change since last update, do not post cmd */
1132 DRM_DEBUG_DRIVER("No change, not posting cmd\n");
1133 plane->status = STI_PLANE_UPDATED;
1134 return;
1135 }
1136
1137 mode = &crtc->mode;
1138 dst_x = state->crtc_x;
1139 dst_y = state->crtc_y;
1140 dst_w = clamp_val(state->crtc_w, 0, mode->hdisplay - dst_x);
1141 dst_h = clamp_val(state->crtc_h, 0, mode->vdisplay - dst_y);
1142 /* src_x are in 16.16 format */
1143 src_x = state->src_x >> 16;
1144 src_y = state->src_y >> 16;
1145 src_w = state->src_w >> 16;
1146 src_h = state->src_h >> 16;
1147
1148 cmd_offset = sti_hqvdp_get_free_cmd(hqvdp);
1149 if (cmd_offset == -1) {
1150 DRM_DEBUG_DRIVER("Warning: no cmd, will skip frame\n");
1151 return;
1152 }
1153 cmd = hqvdp->hqvdp_cmd + cmd_offset;
1154
1155 /* Static parameters, defaulting to progressive mode */
1156 cmd->top.config = TOP_CONFIG_PROGRESSIVE;
1157 cmd->top.mem_format = TOP_MEM_FORMAT_DFLT;
1158 cmd->hvsrc.param_ctrl = HVSRC_PARAM_CTRL_DFLT;
1159 cmd->csdi.config = CSDI_CONFIG_PROG;
1160
1161 /* VC1RE, FMD bypassed : keep everything set to 0
1162 * IQI/P2I bypassed */
1163 cmd->iqi.config = IQI_CONFIG_DFLT;
1164 cmd->iqi.con_bri = IQI_CON_BRI_DFLT;
1165 cmd->iqi.sat_gain = IQI_SAT_GAIN_DFLT;
1166 cmd->iqi.pxf_conf = IQI_PXF_CONF_DFLT;
1167
1168 cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
1169
1170 DRM_DEBUG_DRIVER("drm FB:%d format:%.4s phys@:0x%lx\n", fb->base.id,
1171 (char *)&fb->format->format,
1172 (unsigned long)cma_obj->paddr);
1173
1174 /* Buffer planes address */
1175 cmd->top.current_luma = (u32)cma_obj->paddr + fb->offsets[0];
1176 cmd->top.current_chroma = (u32)cma_obj->paddr + fb->offsets[1];
1177
1178 /* Pitches */
1179 cmd->top.luma_processed_pitch = fb->pitches[0];
1180 cmd->top.luma_src_pitch = fb->pitches[0];
1181 cmd->top.chroma_processed_pitch = fb->pitches[1];
1182 cmd->top.chroma_src_pitch = fb->pitches[1];
1183
1184 /* Input / output size
1185 * Align to upper even value */
1186 dst_w = ALIGN(dst_w, 2);
1187 dst_h = ALIGN(dst_h, 2);
1188
1189 cmd->top.input_viewport_size = src_h << 16 | src_w;
1190 cmd->top.input_frame_size = src_h << 16 | src_w;
1191 cmd->hvsrc.output_picture_size = dst_h << 16 | dst_w;
1192 cmd->top.input_viewport_ori = src_y << 16 | src_x;
1193
1194 /* Handle interlaced */
1195 if (fb->flags & DRM_MODE_FB_INTERLACED) {
1196 /* Top field to display */
1197 cmd->top.config = TOP_CONFIG_INTER_TOP;
1198
1199 /* Update pitches and vert size */
1200 cmd->top.input_frame_size = (src_h / 2) << 16 | src_w;
1201 cmd->top.luma_processed_pitch *= 2;
1202 cmd->top.luma_src_pitch *= 2;
1203 cmd->top.chroma_processed_pitch *= 2;
1204 cmd->top.chroma_src_pitch *= 2;
1205
1206 /* Enable directional deinterlacing processing */
1207 cmd->csdi.config = CSDI_CONFIG_INTER_DIR;
1208 cmd->csdi.config2 = CSDI_CONFIG2_DFLT;
1209 cmd->csdi.dcdi_config = CSDI_DCDI_CONFIG_DFLT;
1210 }
1211
1212 /* Update hvsrc lut coef */
1213 scale_h = SCALE_FACTOR * dst_w / src_w;
1214 sti_hqvdp_update_hvsrc(HVSRC_HORI, scale_h, &cmd->hvsrc);
1215
1216 scale_v = SCALE_FACTOR * dst_h / src_h;
1217 sti_hqvdp_update_hvsrc(HVSRC_VERT, scale_v, &cmd->hvsrc);
1218
1219 writel(hqvdp->hqvdp_cmd_paddr + cmd_offset,
1220 hqvdp->regs + HQVDP_MBX_NEXT_CMD);
1221
1222 /* Interlaced : get ready to display the bottom field at next Vsync */
1223 if (fb->flags & DRM_MODE_FB_INTERLACED)
1224 hqvdp->btm_field_pending = true;
1225
1226 dev_dbg(hqvdp->dev, "%s Posted command:0x%x\n",
1227 __func__, hqvdp->hqvdp_cmd_paddr + cmd_offset);
1228
1229 sti_plane_update_fps(plane, true, true);
1230
1231 plane->status = STI_PLANE_UPDATED;
1232 }
1233
1234 static void sti_hqvdp_atomic_disable(struct drm_plane *drm_plane,
1235 struct drm_plane_state *oldstate)
1236 {
1237 struct sti_plane *plane = to_sti_plane(drm_plane);
1238
1239 if (!oldstate->crtc) {
1240 DRM_DEBUG_DRIVER("drm plane:%d not enabled\n",
1241 drm_plane->base.id);
1242 return;
1243 }
1244
1245 DRM_DEBUG_DRIVER("CRTC:%d (%s) drm plane:%d (%s)\n",
1246 oldstate->crtc->base.id,
1247 sti_mixer_to_str(to_sti_mixer(oldstate->crtc)),
1248 drm_plane->base.id, sti_plane_to_str(plane));
1249
1250 plane->status = STI_PLANE_DISABLING;
1251 }
1252
1253 static const struct drm_plane_helper_funcs sti_hqvdp_helpers_funcs = {
1254 .atomic_check = sti_hqvdp_atomic_check,
1255 .atomic_update = sti_hqvdp_atomic_update,
1256 .atomic_disable = sti_hqvdp_atomic_disable,
1257 };
1258
1259 static void sti_hqvdp_destroy(struct drm_plane *drm_plane)
1260 {
1261 DRM_DEBUG_DRIVER("\n");
1262
1263 drm_plane_helper_disable(drm_plane);
1264 drm_plane_cleanup(drm_plane);
1265 }
1266
1267 static int sti_hqvdp_late_register(struct drm_plane *drm_plane)
1268 {
1269 struct sti_plane *plane = to_sti_plane(drm_plane);
1270 struct sti_hqvdp *hqvdp = to_sti_hqvdp(plane);
1271
1272 return hqvdp_debugfs_init(hqvdp, drm_plane->dev->primary);
1273 }
1274
1275 static const struct drm_plane_funcs sti_hqvdp_plane_helpers_funcs = {
1276 .update_plane = drm_atomic_helper_update_plane,
1277 .disable_plane = drm_atomic_helper_disable_plane,
1278 .destroy = sti_hqvdp_destroy,
1279 .reset = sti_plane_reset,
1280 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
1281 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
1282 .late_register = sti_hqvdp_late_register,
1283 };
1284
1285 static struct drm_plane *sti_hqvdp_create(struct drm_device *drm_dev,
1286 struct device *dev, int desc)
1287 {
1288 struct sti_hqvdp *hqvdp = dev_get_drvdata(dev);
1289 int res;
1290
1291 hqvdp->plane.desc = desc;
1292 hqvdp->plane.status = STI_PLANE_DISABLED;
1293
1294 sti_hqvdp_init(hqvdp);
1295
1296 res = drm_universal_plane_init(drm_dev, &hqvdp->plane.drm_plane, 1,
1297 &sti_hqvdp_plane_helpers_funcs,
1298 hqvdp_supported_formats,
1299 ARRAY_SIZE(hqvdp_supported_formats),
1300 NULL, DRM_PLANE_TYPE_OVERLAY, NULL);
1301 if (res) {
1302 DRM_ERROR("Failed to initialize universal plane\n");
1303 return NULL;
1304 }
1305
1306 drm_plane_helper_add(&hqvdp->plane.drm_plane, &sti_hqvdp_helpers_funcs);
1307
1308 sti_plane_init_property(&hqvdp->plane, DRM_PLANE_TYPE_OVERLAY);
1309
1310 return &hqvdp->plane.drm_plane;
1311 }
1312
1313 static int sti_hqvdp_bind(struct device *dev, struct device *master, void *data)
1314 {
1315 struct sti_hqvdp *hqvdp = dev_get_drvdata(dev);
1316 struct drm_device *drm_dev = data;
1317 struct drm_plane *plane;
1318
1319 DRM_DEBUG_DRIVER("\n");
1320
1321 hqvdp->drm_dev = drm_dev;
1322
1323 /* Create HQVDP plane once xp70 is initialized */
1324 plane = sti_hqvdp_create(drm_dev, hqvdp->dev, STI_HQVDP_0);
1325 if (!plane)
1326 DRM_ERROR("Can't create HQVDP plane\n");
1327
1328 return 0;
1329 }
1330
1331 static void sti_hqvdp_unbind(struct device *dev,
1332 struct device *master, void *data)
1333 {
1334 /* do nothing */
1335 }
1336
1337 static const struct component_ops sti_hqvdp_ops = {
1338 .bind = sti_hqvdp_bind,
1339 .unbind = sti_hqvdp_unbind,
1340 };
1341
1342 static int sti_hqvdp_probe(struct platform_device *pdev)
1343 {
1344 struct device *dev = &pdev->dev;
1345 struct device_node *vtg_np;
1346 struct sti_hqvdp *hqvdp;
1347 struct resource *res;
1348
1349 DRM_DEBUG_DRIVER("\n");
1350
1351 hqvdp = devm_kzalloc(dev, sizeof(*hqvdp), GFP_KERNEL);
1352 if (!hqvdp) {
1353 DRM_ERROR("Failed to allocate HQVDP context\n");
1354 return -ENOMEM;
1355 }
1356
1357 hqvdp->dev = dev;
1358
1359 /* Get Memory resources */
1360 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1361 if (!res) {
1362 DRM_ERROR("Get memory resource failed\n");
1363 return -ENXIO;
1364 }
1365 hqvdp->regs = devm_ioremap(dev, res->start, resource_size(res));
1366 if (!hqvdp->regs) {
1367 DRM_ERROR("Register mapping failed\n");
1368 return -ENXIO;
1369 }
1370
1371 /* Get clock resources */
1372 hqvdp->clk = devm_clk_get(dev, "hqvdp");
1373 hqvdp->clk_pix_main = devm_clk_get(dev, "pix_main");
1374 if (IS_ERR(hqvdp->clk) || IS_ERR(hqvdp->clk_pix_main)) {
1375 DRM_ERROR("Cannot get clocks\n");
1376 return -ENXIO;
1377 }
1378
1379 /* Get reset resources */
1380 hqvdp->reset = devm_reset_control_get(dev, "hqvdp");
1381 if (!IS_ERR(hqvdp->reset))
1382 reset_control_deassert(hqvdp->reset);
1383
1384 vtg_np = of_parse_phandle(pdev->dev.of_node, "st,vtg", 0);
1385 if (vtg_np)
1386 hqvdp->vtg = of_vtg_find(vtg_np);
1387 of_node_put(vtg_np);
1388
1389 platform_set_drvdata(pdev, hqvdp);
1390
1391 return component_add(&pdev->dev, &sti_hqvdp_ops);
1392 }
1393
1394 static int sti_hqvdp_remove(struct platform_device *pdev)
1395 {
1396 component_del(&pdev->dev, &sti_hqvdp_ops);
1397 return 0;
1398 }
1399
1400 static const struct of_device_id hqvdp_of_match[] = {
1401 { .compatible = "st,stih407-hqvdp", },
1402 { /* end node */ }
1403 };
1404 MODULE_DEVICE_TABLE(of, hqvdp_of_match);
1405
1406 struct platform_driver sti_hqvdp_driver = {
1407 .driver = {
1408 .name = "sti-hqvdp",
1409 .owner = THIS_MODULE,
1410 .of_match_table = hqvdp_of_match,
1411 },
1412 .probe = sti_hqvdp_probe,
1413 .remove = sti_hqvdp_remove,
1414 };
1415
1416 MODULE_AUTHOR("Benjamin Gaignard <benjamin.gaignard@st.com>");
1417 MODULE_DESCRIPTION("STMicroelectronics SoC DRM driver");
1418 MODULE_LICENSE("GPL");
CRIS linux kernel tree