xref: /linux/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c (revision a3a02a52bcfcbcc4a637d4b68bf1bc391c9fad02)
1 // SPDX-License-Identifier: MIT
2 /*
3  * Copyright © 2022 Intel Corporation
4  */
5 
6 #include <drm/drm_edid.h>
7 #include <drm/drm_eld.h>
8 
9 #include "i915_drv.h"
10 #include "intel_crtc_state_dump.h"
11 #include "intel_display_types.h"
12 #include "intel_hdmi.h"
13 #include "intel_vrr.h"
14 
15 static void intel_dump_crtc_timings(struct drm_printer *p,
16 				    const struct drm_display_mode *mode)
17 {
18 	drm_printf(p, "crtc timings: clock=%d, "
19 		   "hd=%d hb=%d-%d hs=%d-%d ht=%d, "
20 		   "vd=%d vb=%d-%d vs=%d-%d vt=%d, "
21 		   "flags=0x%x\n",
22 		   mode->crtc_clock,
23 		   mode->crtc_hdisplay, mode->crtc_hblank_start, mode->crtc_hblank_end,
24 		   mode->crtc_hsync_start, mode->crtc_hsync_end, mode->crtc_htotal,
25 		   mode->crtc_vdisplay, mode->crtc_vblank_start, mode->crtc_vblank_end,
26 		   mode->crtc_vsync_start, mode->crtc_vsync_end, mode->crtc_vtotal,
27 		   mode->flags);
28 }
29 
30 static void
31 intel_dump_m_n_config(struct drm_printer *p,
32 		      const struct intel_crtc_state *pipe_config,
33 		      const char *id, unsigned int lane_count,
34 		      const struct intel_link_m_n *m_n)
35 {
36 	drm_printf(p, "%s: lanes: %i; data_m: %u, data_n: %u, link_m: %u, link_n: %u, tu: %u\n",
37 		   id, lane_count,
38 		   m_n->data_m, m_n->data_n,
39 		   m_n->link_m, m_n->link_n, m_n->tu);
40 }
41 
42 static void
43 intel_dump_infoframe(struct drm_i915_private *i915,
44 		     const union hdmi_infoframe *frame)
45 {
46 	if (!drm_debug_enabled(DRM_UT_KMS))
47 		return;
48 
49 	hdmi_infoframe_log(KERN_DEBUG, i915->drm.dev, frame);
50 }
51 
52 static void
53 intel_dump_buffer(const char *prefix, const u8 *buf, size_t len)
54 {
55 	if (!drm_debug_enabled(DRM_UT_KMS))
56 		return;
57 
58 	print_hex_dump(KERN_DEBUG, prefix, DUMP_PREFIX_NONE,
59 		       16, 0, buf, len, false);
60 }
61 
62 #define OUTPUT_TYPE(x) [INTEL_OUTPUT_ ## x] = #x
63 
64 static const char * const output_type_str[] = {
65 	OUTPUT_TYPE(UNUSED),
66 	OUTPUT_TYPE(ANALOG),
67 	OUTPUT_TYPE(DVO),
68 	OUTPUT_TYPE(SDVO),
69 	OUTPUT_TYPE(LVDS),
70 	OUTPUT_TYPE(TVOUT),
71 	OUTPUT_TYPE(HDMI),
72 	OUTPUT_TYPE(DP),
73 	OUTPUT_TYPE(EDP),
74 	OUTPUT_TYPE(DSI),
75 	OUTPUT_TYPE(DDI),
76 	OUTPUT_TYPE(DP_MST),
77 };
78 
79 #undef OUTPUT_TYPE
80 
81 static void snprintf_output_types(char *buf, size_t len,
82 				  unsigned int output_types)
83 {
84 	char *str = buf;
85 	int i;
86 
87 	str[0] = '\0';
88 
89 	for (i = 0; i < ARRAY_SIZE(output_type_str); i++) {
90 		int r;
91 
92 		if ((output_types & BIT(i)) == 0)
93 			continue;
94 
95 		r = snprintf(str, len, "%s%s",
96 			     str != buf ? "," : "", output_type_str[i]);
97 		if (r >= len)
98 			break;
99 		str += r;
100 		len -= r;
101 
102 		output_types &= ~BIT(i);
103 	}
104 
105 	WARN_ON_ONCE(output_types != 0);
106 }
107 
108 static const char * const output_format_str[] = {
109 	[INTEL_OUTPUT_FORMAT_RGB] = "RGB",
110 	[INTEL_OUTPUT_FORMAT_YCBCR420] = "YCBCR4:2:0",
111 	[INTEL_OUTPUT_FORMAT_YCBCR444] = "YCBCR4:4:4",
112 };
113 
114 const char *intel_output_format_name(enum intel_output_format format)
115 {
116 	if (format >= ARRAY_SIZE(output_format_str))
117 		return "invalid";
118 	return output_format_str[format];
119 }
120 
121 static void intel_dump_plane_state(struct drm_printer *p,
122 				   const struct intel_plane_state *plane_state)
123 {
124 	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
125 	const struct drm_framebuffer *fb = plane_state->hw.fb;
126 
127 	if (!fb) {
128 		drm_printf(p, "[PLANE:%d:%s] fb: [NOFB], visible: %s\n",
129 			   plane->base.base.id, plane->base.name,
130 			   str_yes_no(plane_state->uapi.visible));
131 		return;
132 	}
133 
134 	drm_printf(p, "[PLANE:%d:%s] fb: [FB:%d] %ux%u format = %p4cc modifier = 0x%llx, visible: %s\n",
135 		   plane->base.base.id, plane->base.name,
136 		   fb->base.id, fb->width, fb->height, &fb->format->format,
137 		   fb->modifier, str_yes_no(plane_state->uapi.visible));
138 	drm_printf(p, "\trotation: 0x%x, scaler: %d, scaling_filter: %d\n",
139 		   plane_state->hw.rotation, plane_state->scaler_id, plane_state->hw.scaling_filter);
140 	if (plane_state->uapi.visible)
141 		drm_printf(p, "\tsrc: " DRM_RECT_FP_FMT " dst: " DRM_RECT_FMT "\n",
142 			   DRM_RECT_FP_ARG(&plane_state->uapi.src),
143 			   DRM_RECT_ARG(&plane_state->uapi.dst));
144 }
145 
146 static void
147 ilk_dump_csc(struct drm_i915_private *i915,
148 	     struct drm_printer *p,
149 	     const char *name,
150 	     const struct intel_csc_matrix *csc)
151 {
152 	int i;
153 
154 	drm_printf(p, "%s: pre offsets: 0x%04x 0x%04x 0x%04x\n", name,
155 		   csc->preoff[0], csc->preoff[1], csc->preoff[2]);
156 
157 	for (i = 0; i < 3; i++)
158 		drm_printf(p, "%s: coefficients: 0x%04x 0x%04x 0x%04x\n", name,
159 			   csc->coeff[3 * i + 0],
160 			   csc->coeff[3 * i + 1],
161 			   csc->coeff[3 * i + 2]);
162 
163 	if (DISPLAY_VER(i915) < 7)
164 		return;
165 
166 	drm_printf(p, "%s: post offsets: 0x%04x 0x%04x 0x%04x\n", name,
167 		   csc->postoff[0], csc->postoff[1], csc->postoff[2]);
168 }
169 
170 static void
171 vlv_dump_csc(struct drm_printer *p, const char *name,
172 	     const struct intel_csc_matrix *csc)
173 {
174 	int i;
175 
176 	for (i = 0; i < 3; i++)
177 		drm_printf(p, "%s: coefficients: 0x%04x 0x%04x 0x%04x\n", name,
178 			   csc->coeff[3 * i + 0],
179 			   csc->coeff[3 * i + 1],
180 			   csc->coeff[3 * i + 2]);
181 }
182 
183 void intel_crtc_state_dump(const struct intel_crtc_state *pipe_config,
184 			   struct intel_atomic_state *state,
185 			   const char *context)
186 {
187 	struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc);
188 	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
189 	const struct intel_plane_state *plane_state;
190 	struct intel_plane *plane;
191 	struct drm_printer p;
192 	char buf[64];
193 	int i;
194 
195 	if (!drm_debug_enabled(DRM_UT_KMS))
196 		return;
197 
198 	p = drm_dbg_printer(&i915->drm, DRM_UT_KMS, NULL);
199 
200 	drm_printf(&p, "[CRTC:%d:%s] enable: %s [%s]\n",
201 		   crtc->base.base.id, crtc->base.name,
202 		   str_yes_no(pipe_config->hw.enable), context);
203 
204 	if (!pipe_config->hw.enable)
205 		goto dump_planes;
206 
207 	snprintf_output_types(buf, sizeof(buf), pipe_config->output_types);
208 	drm_printf(&p, "active: %s, output_types: %s (0x%x), output format: %s, sink format: %s\n",
209 		   str_yes_no(pipe_config->hw.active),
210 		   buf, pipe_config->output_types,
211 		   intel_output_format_name(pipe_config->output_format),
212 		   intel_output_format_name(pipe_config->sink_format));
213 
214 	drm_printf(&p, "cpu_transcoder: %s, pipe bpp: %i, dithering: %i\n",
215 		   transcoder_name(pipe_config->cpu_transcoder),
216 		   pipe_config->pipe_bpp, pipe_config->dither);
217 
218 	drm_printf(&p, "MST master transcoder: %s\n",
219 		   transcoder_name(pipe_config->mst_master_transcoder));
220 
221 	drm_printf(&p, "port sync: master transcoder: %s, slave transcoder bitmask = 0x%x\n",
222 		   transcoder_name(pipe_config->master_transcoder),
223 		   pipe_config->sync_mode_slaves_mask);
224 
225 	drm_printf(&p, "joiner: %s, pipes: 0x%x\n",
226 		   intel_crtc_is_joiner_secondary(pipe_config) ? "secondary" :
227 		   intel_crtc_is_joiner_primary(pipe_config) ? "primary" : "no",
228 		   pipe_config->joiner_pipes);
229 
230 	drm_printf(&p, "splitter: %s, link count %d, overlap %d\n",
231 		   str_enabled_disabled(pipe_config->splitter.enable),
232 		   pipe_config->splitter.link_count,
233 		   pipe_config->splitter.pixel_overlap);
234 
235 	if (pipe_config->has_pch_encoder)
236 		intel_dump_m_n_config(&p, pipe_config, "fdi",
237 				      pipe_config->fdi_lanes,
238 				      &pipe_config->fdi_m_n);
239 
240 	if (intel_crtc_has_dp_encoder(pipe_config)) {
241 		intel_dump_m_n_config(&p, pipe_config, "dp m_n",
242 				      pipe_config->lane_count,
243 				      &pipe_config->dp_m_n);
244 		intel_dump_m_n_config(&p, pipe_config, "dp m2_n2",
245 				      pipe_config->lane_count,
246 				      &pipe_config->dp_m2_n2);
247 		drm_printf(&p, "fec: %s, enhanced framing: %s\n",
248 			   str_enabled_disabled(pipe_config->fec_enable),
249 			   str_enabled_disabled(pipe_config->enhanced_framing));
250 
251 		drm_printf(&p, "sdp split: %s\n",
252 			   str_enabled_disabled(pipe_config->sdp_split_enable));
253 
254 		drm_printf(&p, "psr: %s, selective update: %s, panel replay: %s, selective fetch: %s\n",
255 			   str_enabled_disabled(pipe_config->has_psr &&
256 						!pipe_config->has_panel_replay),
257 			   str_enabled_disabled(pipe_config->has_sel_update),
258 			   str_enabled_disabled(pipe_config->has_panel_replay),
259 			   str_enabled_disabled(pipe_config->enable_psr2_sel_fetch));
260 	}
261 
262 	drm_printf(&p, "framestart delay: %d, MSA timing delay: %d\n",
263 		   pipe_config->framestart_delay, pipe_config->msa_timing_delay);
264 
265 	drm_printf(&p, "audio: %i, infoframes: %i, infoframes enabled: 0x%x\n",
266 		   pipe_config->has_audio, pipe_config->has_infoframe,
267 		   pipe_config->infoframes.enable);
268 
269 	if (pipe_config->infoframes.enable &
270 	    intel_hdmi_infoframe_enable(HDMI_PACKET_TYPE_GENERAL_CONTROL))
271 		drm_printf(&p, "GCP: 0x%x\n", pipe_config->infoframes.gcp);
272 	if (pipe_config->infoframes.enable &
273 	    intel_hdmi_infoframe_enable(HDMI_INFOFRAME_TYPE_AVI))
274 		intel_dump_infoframe(i915, &pipe_config->infoframes.avi);
275 	if (pipe_config->infoframes.enable &
276 	    intel_hdmi_infoframe_enable(HDMI_INFOFRAME_TYPE_SPD))
277 		intel_dump_infoframe(i915, &pipe_config->infoframes.spd);
278 	if (pipe_config->infoframes.enable &
279 	    intel_hdmi_infoframe_enable(HDMI_INFOFRAME_TYPE_VENDOR))
280 		intel_dump_infoframe(i915, &pipe_config->infoframes.hdmi);
281 	if (pipe_config->infoframes.enable &
282 	    intel_hdmi_infoframe_enable(HDMI_INFOFRAME_TYPE_DRM))
283 		intel_dump_infoframe(i915, &pipe_config->infoframes.drm);
284 	if (pipe_config->infoframes.enable &
285 	    intel_hdmi_infoframe_enable(HDMI_PACKET_TYPE_GAMUT_METADATA))
286 		intel_dump_infoframe(i915, &pipe_config->infoframes.drm);
287 	if (pipe_config->infoframes.enable &
288 	    intel_hdmi_infoframe_enable(DP_SDP_VSC))
289 		drm_dp_vsc_sdp_log(&p, &pipe_config->infoframes.vsc);
290 	if (pipe_config->infoframes.enable &
291 	    intel_hdmi_infoframe_enable(DP_SDP_ADAPTIVE_SYNC))
292 		drm_dp_as_sdp_log(&p, &pipe_config->infoframes.as_sdp);
293 
294 	if (pipe_config->has_audio)
295 		intel_dump_buffer("ELD: ", pipe_config->eld,
296 				  drm_eld_size(pipe_config->eld));
297 
298 	drm_printf(&p, "vrr: %s, vmin: %d, vmax: %d, pipeline full: %d, guardband: %d flipline: %d, vmin vblank: %d, vmax vblank: %d\n",
299 		   str_yes_no(pipe_config->vrr.enable),
300 		   pipe_config->vrr.vmin, pipe_config->vrr.vmax,
301 		   pipe_config->vrr.pipeline_full, pipe_config->vrr.guardband,
302 		   pipe_config->vrr.flipline,
303 		   intel_vrr_vmin_vblank_start(pipe_config),
304 		   intel_vrr_vmax_vblank_start(pipe_config));
305 
306 	drm_printf(&p, "requested mode: " DRM_MODE_FMT "\n",
307 		   DRM_MODE_ARG(&pipe_config->hw.mode));
308 	drm_printf(&p, "adjusted mode: " DRM_MODE_FMT "\n",
309 		   DRM_MODE_ARG(&pipe_config->hw.adjusted_mode));
310 	intel_dump_crtc_timings(&p, &pipe_config->hw.adjusted_mode);
311 	drm_printf(&p, "pipe mode: " DRM_MODE_FMT "\n",
312 		   DRM_MODE_ARG(&pipe_config->hw.pipe_mode));
313 	intel_dump_crtc_timings(&p, &pipe_config->hw.pipe_mode);
314 	drm_printf(&p, "port clock: %d, pipe src: " DRM_RECT_FMT ", pixel rate %d\n",
315 		   pipe_config->port_clock, DRM_RECT_ARG(&pipe_config->pipe_src),
316 		   pipe_config->pixel_rate);
317 
318 	drm_printf(&p, "linetime: %d, ips linetime: %d\n",
319 		   pipe_config->linetime, pipe_config->ips_linetime);
320 
321 	if (DISPLAY_VER(i915) >= 9)
322 		drm_printf(&p, "num_scalers: %d, scaler_users: 0x%x, scaler_id: %d, scaling_filter: %d\n",
323 			   crtc->num_scalers,
324 			   pipe_config->scaler_state.scaler_users,
325 			   pipe_config->scaler_state.scaler_id,
326 			   pipe_config->hw.scaling_filter);
327 
328 	if (HAS_GMCH(i915))
329 		drm_printf(&p, "gmch pfit: control: 0x%08x, ratios: 0x%08x, lvds border: 0x%08x\n",
330 			   pipe_config->gmch_pfit.control,
331 			   pipe_config->gmch_pfit.pgm_ratios,
332 			   pipe_config->gmch_pfit.lvds_border_bits);
333 	else
334 		drm_printf(&p, "pch pfit: " DRM_RECT_FMT ", %s, force thru: %s\n",
335 			   DRM_RECT_ARG(&pipe_config->pch_pfit.dst),
336 			   str_enabled_disabled(pipe_config->pch_pfit.enabled),
337 			   str_yes_no(pipe_config->pch_pfit.force_thru));
338 
339 	drm_printf(&p, "ips: %i, double wide: %i, drrs: %i\n",
340 		   pipe_config->ips_enabled, pipe_config->double_wide,
341 		   pipe_config->has_drrs);
342 
343 	intel_dpll_dump_hw_state(i915, &p, &pipe_config->dpll_hw_state);
344 
345 	if (IS_CHERRYVIEW(i915))
346 		drm_printf(&p, "cgm_mode: 0x%x gamma_mode: 0x%x gamma_enable: %d csc_enable: %d\n",
347 			   pipe_config->cgm_mode, pipe_config->gamma_mode,
348 			   pipe_config->gamma_enable, pipe_config->csc_enable);
349 	else
350 		drm_printf(&p, "csc_mode: 0x%x gamma_mode: 0x%x gamma_enable: %d csc_enable: %d\n",
351 			   pipe_config->csc_mode, pipe_config->gamma_mode,
352 			   pipe_config->gamma_enable, pipe_config->csc_enable);
353 
354 	drm_printf(&p, "pre csc lut: %s%d entries, post csc lut: %d entries\n",
355 		   pipe_config->pre_csc_lut && pipe_config->pre_csc_lut ==
356 		   i915->display.color.glk_linear_degamma_lut ? "(linear) " : "",
357 		   pipe_config->pre_csc_lut ?
358 		   drm_color_lut_size(pipe_config->pre_csc_lut) : 0,
359 		   pipe_config->post_csc_lut ?
360 		   drm_color_lut_size(pipe_config->post_csc_lut) : 0);
361 
362 	if (DISPLAY_VER(i915) >= 11)
363 		ilk_dump_csc(i915, &p, "output csc", &pipe_config->output_csc);
364 
365 	if (!HAS_GMCH(i915))
366 		ilk_dump_csc(i915, &p, "pipe csc", &pipe_config->csc);
367 	else if (IS_CHERRYVIEW(i915))
368 		vlv_dump_csc(&p, "cgm csc", &pipe_config->csc);
369 	else if (IS_VALLEYVIEW(i915))
370 		vlv_dump_csc(&p, "wgc csc", &pipe_config->csc);
371 
372 dump_planes:
373 	if (!state)
374 		return;
375 
376 	for_each_new_intel_plane_in_state(state, plane, plane_state, i) {
377 		if (plane->pipe == crtc->pipe)
378 			intel_dump_plane_state(&p, plane_state);
379 	}
380 }
381