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22554020 JN |
1 | =========================== |
2 | drm/i915 Intel GFX Driver | |
3 | =========================== | |
ca00c2b9 JN |
4 | |
5 | The drm/i915 driver supports all (with the exception of some very early | |
6 | models) integrated GFX chipsets with both Intel display and rendering | |
7 | blocks. This excludes a set of SoC platforms with an SGX rendering unit, | |
8 | those have basic support through the gma500 drm driver. | |
9 | ||
10 | Core Driver Infrastructure | |
22554020 | 11 | ========================== |
ca00c2b9 JN |
12 | |
13 | This section covers core driver infrastructure used by both the display | |
14 | and the GEM parts of the driver. | |
15 | ||
16 | Runtime Power Management | |
22554020 | 17 | ------------------------ |
ca00c2b9 JN |
18 | |
19 | .. kernel-doc:: drivers/gpu/drm/i915/intel_runtime_pm.c | |
20 | :doc: runtime pm | |
21 | ||
22 | .. kernel-doc:: drivers/gpu/drm/i915/intel_runtime_pm.c | |
23 | :internal: | |
24 | ||
25 | .. kernel-doc:: drivers/gpu/drm/i915/intel_uncore.c | |
26 | :internal: | |
27 | ||
28 | Interrupt Handling | |
22554020 | 29 | ------------------ |
ca00c2b9 JN |
30 | |
31 | .. kernel-doc:: drivers/gpu/drm/i915/i915_irq.c | |
32 | :doc: interrupt handling | |
33 | ||
34 | .. kernel-doc:: drivers/gpu/drm/i915/i915_irq.c | |
35 | :functions: intel_irq_init intel_irq_init_hw intel_hpd_init | |
36 | ||
37 | .. kernel-doc:: drivers/gpu/drm/i915/i915_irq.c | |
38 | :functions: intel_runtime_pm_disable_interrupts | |
39 | ||
40 | .. kernel-doc:: drivers/gpu/drm/i915/i915_irq.c | |
41 | :functions: intel_runtime_pm_enable_interrupts | |
42 | ||
43 | Intel GVT-g Guest Support(vGPU) | |
22554020 | 44 | ------------------------------- |
ca00c2b9 JN |
45 | |
46 | .. kernel-doc:: drivers/gpu/drm/i915/i915_vgpu.c | |
47 | :doc: Intel GVT-g guest support | |
48 | ||
49 | .. kernel-doc:: drivers/gpu/drm/i915/i915_vgpu.c | |
50 | :internal: | |
51 | ||
22681c7b ZW |
52 | Intel GVT-g Host Support(vGPU device model) |
53 | ------------------------------------------- | |
54 | ||
55 | .. kernel-doc:: drivers/gpu/drm/i915/intel_gvt.c | |
56 | :doc: Intel GVT-g host support | |
57 | ||
58 | .. kernel-doc:: drivers/gpu/drm/i915/intel_gvt.c | |
59 | :internal: | |
60 | ||
ca00c2b9 | 61 | Display Hardware Handling |
22554020 | 62 | ========================= |
ca00c2b9 JN |
63 | |
64 | This section covers everything related to the display hardware including | |
65 | the mode setting infrastructure, plane, sprite and cursor handling and | |
66 | display, output probing and related topics. | |
67 | ||
68 | Mode Setting Infrastructure | |
22554020 | 69 | --------------------------- |
ca00c2b9 JN |
70 | |
71 | The i915 driver is thus far the only DRM driver which doesn't use the | |
72 | common DRM helper code to implement mode setting sequences. Thus it has | |
73 | its own tailor-made infrastructure for executing a display configuration | |
74 | change. | |
75 | ||
76 | Frontbuffer Tracking | |
22554020 | 77 | -------------------- |
ca00c2b9 JN |
78 | |
79 | .. kernel-doc:: drivers/gpu/drm/i915/intel_frontbuffer.c | |
80 | :doc: frontbuffer tracking | |
81 | ||
5d723d7a CW |
82 | .. kernel-doc:: drivers/gpu/drm/i915/intel_frontbuffer.h |
83 | :internal: | |
84 | ||
ca00c2b9 JN |
85 | .. kernel-doc:: drivers/gpu/drm/i915/intel_frontbuffer.c |
86 | :internal: | |
87 | ||
88 | .. kernel-doc:: drivers/gpu/drm/i915/i915_gem.c | |
89 | :functions: i915_gem_track_fb | |
90 | ||
91 | Display FIFO Underrun Reporting | |
22554020 | 92 | ------------------------------- |
ca00c2b9 JN |
93 | |
94 | .. kernel-doc:: drivers/gpu/drm/i915/intel_fifo_underrun.c | |
95 | :doc: fifo underrun handling | |
96 | ||
97 | .. kernel-doc:: drivers/gpu/drm/i915/intel_fifo_underrun.c | |
98 | :internal: | |
99 | ||
100 | Plane Configuration | |
22554020 | 101 | ------------------- |
ca00c2b9 JN |
102 | |
103 | This section covers plane configuration and composition with the primary | |
104 | plane, sprites, cursors and overlays. This includes the infrastructure | |
105 | to do atomic vsync'ed updates of all this state and also tightly coupled | |
106 | topics like watermark setup and computation, framebuffer compression and | |
107 | panel self refresh. | |
108 | ||
109 | Atomic Plane Helpers | |
22554020 | 110 | -------------------- |
ca00c2b9 JN |
111 | |
112 | .. kernel-doc:: drivers/gpu/drm/i915/intel_atomic_plane.c | |
113 | :doc: atomic plane helpers | |
114 | ||
115 | .. kernel-doc:: drivers/gpu/drm/i915/intel_atomic_plane.c | |
116 | :internal: | |
117 | ||
118 | Output Probing | |
22554020 | 119 | -------------- |
ca00c2b9 JN |
120 | |
121 | This section covers output probing and related infrastructure like the | |
122 | hotplug interrupt storm detection and mitigation code. Note that the | |
123 | i915 driver still uses most of the common DRM helper code for output | |
124 | probing, so those sections fully apply. | |
125 | ||
126 | Hotplug | |
22554020 | 127 | ------- |
ca00c2b9 JN |
128 | |
129 | .. kernel-doc:: drivers/gpu/drm/i915/intel_hotplug.c | |
130 | :doc: Hotplug | |
131 | ||
132 | .. kernel-doc:: drivers/gpu/drm/i915/intel_hotplug.c | |
133 | :internal: | |
134 | ||
135 | High Definition Audio | |
22554020 | 136 | --------------------- |
ca00c2b9 JN |
137 | |
138 | .. kernel-doc:: drivers/gpu/drm/i915/intel_audio.c | |
139 | :doc: High Definition Audio over HDMI and Display Port | |
140 | ||
141 | .. kernel-doc:: drivers/gpu/drm/i915/intel_audio.c | |
142 | :internal: | |
143 | ||
144 | .. kernel-doc:: include/drm/i915_component.h | |
145 | :internal: | |
146 | ||
147 | Panel Self Refresh PSR (PSR/SRD) | |
22554020 | 148 | -------------------------------- |
ca00c2b9 JN |
149 | |
150 | .. kernel-doc:: drivers/gpu/drm/i915/intel_psr.c | |
151 | :doc: Panel Self Refresh (PSR/SRD) | |
152 | ||
153 | .. kernel-doc:: drivers/gpu/drm/i915/intel_psr.c | |
154 | :internal: | |
155 | ||
156 | Frame Buffer Compression (FBC) | |
22554020 | 157 | ------------------------------ |
ca00c2b9 JN |
158 | |
159 | .. kernel-doc:: drivers/gpu/drm/i915/intel_fbc.c | |
160 | :doc: Frame Buffer Compression (FBC) | |
161 | ||
162 | .. kernel-doc:: drivers/gpu/drm/i915/intel_fbc.c | |
163 | :internal: | |
164 | ||
165 | Display Refresh Rate Switching (DRRS) | |
22554020 | 166 | ------------------------------------- |
ca00c2b9 JN |
167 | |
168 | .. kernel-doc:: drivers/gpu/drm/i915/intel_dp.c | |
169 | :doc: Display Refresh Rate Switching (DRRS) | |
170 | ||
171 | .. kernel-doc:: drivers/gpu/drm/i915/intel_dp.c | |
172 | :functions: intel_dp_set_drrs_state | |
173 | ||
174 | .. kernel-doc:: drivers/gpu/drm/i915/intel_dp.c | |
175 | :functions: intel_edp_drrs_enable | |
176 | ||
177 | .. kernel-doc:: drivers/gpu/drm/i915/intel_dp.c | |
178 | :functions: intel_edp_drrs_disable | |
179 | ||
180 | .. kernel-doc:: drivers/gpu/drm/i915/intel_dp.c | |
181 | :functions: intel_edp_drrs_invalidate | |
182 | ||
183 | .. kernel-doc:: drivers/gpu/drm/i915/intel_dp.c | |
184 | :functions: intel_edp_drrs_flush | |
185 | ||
186 | .. kernel-doc:: drivers/gpu/drm/i915/intel_dp.c | |
187 | :functions: intel_dp_drrs_init | |
188 | ||
189 | DPIO | |
22554020 | 190 | ---- |
ca00c2b9 | 191 | |
f38861b8 | 192 | .. kernel-doc:: drivers/gpu/drm/i915/intel_dpio_phy.c |
ca00c2b9 JN |
193 | :doc: DPIO |
194 | ||
195 | CSR firmware support for DMC | |
22554020 | 196 | ---------------------------- |
ca00c2b9 JN |
197 | |
198 | .. kernel-doc:: drivers/gpu/drm/i915/intel_csr.c | |
199 | :doc: csr support for dmc | |
200 | ||
201 | .. kernel-doc:: drivers/gpu/drm/i915/intel_csr.c | |
202 | :internal: | |
203 | ||
204 | Video BIOS Table (VBT) | |
22554020 | 205 | ---------------------- |
ca00c2b9 JN |
206 | |
207 | .. kernel-doc:: drivers/gpu/drm/i915/intel_bios.c | |
208 | :doc: Video BIOS Table (VBT) | |
209 | ||
210 | .. kernel-doc:: drivers/gpu/drm/i915/intel_bios.c | |
211 | :internal: | |
212 | ||
213 | .. kernel-doc:: drivers/gpu/drm/i915/intel_vbt_defs.h | |
214 | :internal: | |
215 | ||
216 | Memory Management and Command Submission | |
22554020 | 217 | ======================================== |
ca00c2b9 JN |
218 | |
219 | This sections covers all things related to the GEM implementation in the | |
220 | i915 driver. | |
221 | ||
222 | Batchbuffer Parsing | |
22554020 | 223 | ------------------- |
ca00c2b9 JN |
224 | |
225 | .. kernel-doc:: drivers/gpu/drm/i915/i915_cmd_parser.c | |
226 | :doc: batch buffer command parser | |
227 | ||
228 | .. kernel-doc:: drivers/gpu/drm/i915/i915_cmd_parser.c | |
229 | :internal: | |
230 | ||
231 | Batchbuffer Pools | |
22554020 | 232 | ----------------- |
ca00c2b9 JN |
233 | |
234 | .. kernel-doc:: drivers/gpu/drm/i915/i915_gem_batch_pool.c | |
235 | :doc: batch pool | |
236 | ||
237 | .. kernel-doc:: drivers/gpu/drm/i915/i915_gem_batch_pool.c | |
238 | :internal: | |
239 | ||
240 | Logical Rings, Logical Ring Contexts and Execlists | |
22554020 | 241 | -------------------------------------------------- |
ca00c2b9 JN |
242 | |
243 | .. kernel-doc:: drivers/gpu/drm/i915/intel_lrc.c | |
244 | :doc: Logical Rings, Logical Ring Contexts and Execlists | |
245 | ||
246 | .. kernel-doc:: drivers/gpu/drm/i915/intel_lrc.c | |
247 | :internal: | |
248 | ||
249 | Global GTT views | |
22554020 | 250 | ---------------- |
ca00c2b9 JN |
251 | |
252 | .. kernel-doc:: drivers/gpu/drm/i915/i915_gem_gtt.c | |
253 | :doc: Global GTT views | |
254 | ||
255 | .. kernel-doc:: drivers/gpu/drm/i915/i915_gem_gtt.c | |
256 | :internal: | |
257 | ||
258 | GTT Fences and Swizzling | |
22554020 | 259 | ------------------------ |
ca00c2b9 | 260 | |
ebc896db | 261 | .. kernel-doc:: drivers/gpu/drm/i915/i915_gem_fence_reg.c |
ca00c2b9 JN |
262 | :internal: |
263 | ||
264 | Global GTT Fence Handling | |
22554020 | 265 | ~~~~~~~~~~~~~~~~~~~~~~~~~ |
ca00c2b9 | 266 | |
ebc896db | 267 | .. kernel-doc:: drivers/gpu/drm/i915/i915_gem_fence_reg.c |
ca00c2b9 JN |
268 | :doc: fence register handling |
269 | ||
270 | Hardware Tiling and Swizzling Details | |
22554020 | 271 | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
ca00c2b9 | 272 | |
ebc896db | 273 | .. kernel-doc:: drivers/gpu/drm/i915/i915_gem_fence_reg.c |
ca00c2b9 JN |
274 | :doc: tiling swizzling details |
275 | ||
276 | Object Tiling IOCTLs | |
22554020 | 277 | -------------------- |
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278 | |
279 | .. kernel-doc:: drivers/gpu/drm/i915/i915_gem_tiling.c | |
280 | :internal: | |
281 | ||
282 | .. kernel-doc:: drivers/gpu/drm/i915/i915_gem_tiling.c | |
283 | :doc: buffer object tiling | |
284 | ||
285 | Buffer Object Eviction | |
22554020 | 286 | ---------------------- |
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287 | |
288 | This section documents the interface functions for evicting buffer | |
289 | objects to make space available in the virtual gpu address spaces. Note | |
290 | that this is mostly orthogonal to shrinking buffer objects caches, which | |
291 | has the goal to make main memory (shared with the gpu through the | |
292 | unified memory architecture) available. | |
293 | ||
294 | .. kernel-doc:: drivers/gpu/drm/i915/i915_gem_evict.c | |
295 | :internal: | |
296 | ||
297 | Buffer Object Memory Shrinking | |
22554020 | 298 | ------------------------------ |
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299 | |
300 | This section documents the interface function for shrinking memory usage | |
301 | of buffer object caches. Shrinking is used to make main memory | |
302 | available. Note that this is mostly orthogonal to evicting buffer | |
303 | objects, which has the goal to make space in gpu virtual address spaces. | |
304 | ||
305 | .. kernel-doc:: drivers/gpu/drm/i915/i915_gem_shrinker.c | |
306 | :internal: | |
307 | ||
308 | GuC | |
22554020 | 309 | === |
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310 | |
311 | GuC-specific firmware loader | |
22554020 | 312 | ---------------------------- |
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313 | |
314 | .. kernel-doc:: drivers/gpu/drm/i915/intel_guc_loader.c | |
315 | :doc: GuC-specific firmware loader | |
316 | ||
317 | .. kernel-doc:: drivers/gpu/drm/i915/intel_guc_loader.c | |
318 | :internal: | |
319 | ||
320 | GuC-based command submission | |
22554020 | 321 | ---------------------------- |
ca00c2b9 JN |
322 | |
323 | .. kernel-doc:: drivers/gpu/drm/i915/i915_guc_submission.c | |
324 | :doc: GuC-based command submission | |
325 | ||
326 | .. kernel-doc:: drivers/gpu/drm/i915/i915_guc_submission.c | |
327 | :internal: | |
328 | ||
329 | GuC Firmware Layout | |
22554020 | 330 | ------------------- |
ca00c2b9 JN |
331 | |
332 | .. kernel-doc:: drivers/gpu/drm/i915/intel_guc_fwif.h | |
333 | :doc: GuC Firmware Layout | |
334 | ||
335 | Tracing | |
22554020 | 336 | ======= |
ca00c2b9 JN |
337 | |
338 | This sections covers all things related to the tracepoints implemented | |
339 | in the i915 driver. | |
340 | ||
341 | i915_ppgtt_create and i915_ppgtt_release | |
22554020 | 342 | ---------------------------------------- |
ca00c2b9 JN |
343 | |
344 | .. kernel-doc:: drivers/gpu/drm/i915/i915_trace.h | |
345 | :doc: i915_ppgtt_create and i915_ppgtt_release tracepoints | |
346 | ||
347 | i915_context_create and i915_context_free | |
22554020 | 348 | ----------------------------------------- |
ca00c2b9 JN |
349 | |
350 | .. kernel-doc:: drivers/gpu/drm/i915/i915_trace.h | |
351 | :doc: i915_context_create and i915_context_free tracepoints | |
352 | ||
353 | switch_mm | |
22554020 | 354 | --------- |
ca00c2b9 JN |
355 | |
356 | .. kernel-doc:: drivers/gpu/drm/i915/i915_trace.h | |
357 | :doc: switch_mm tracepoint | |
358 | ||
16d98b31 RB |
359 | Perf |
360 | ==== | |
361 | ||
362 | Overview | |
363 | -------- | |
364 | .. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c | |
365 | :doc: i915 Perf Overview | |
366 | ||
367 | Comparison with Core Perf | |
368 | ------------------------- | |
369 | .. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c | |
370 | :doc: i915 Perf History and Comparison with Core Perf | |
371 | ||
372 | i915 Driver Entry Points | |
373 | ------------------------ | |
374 | ||
375 | This section covers the entrypoints exported outside of i915_perf.c to | |
376 | integrate with drm/i915 and to handle the `DRM_I915_PERF_OPEN` ioctl. | |
377 | ||
378 | .. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c | |
379 | :functions: i915_perf_init | |
380 | .. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c | |
381 | :functions: i915_perf_fini | |
382 | .. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c | |
383 | :functions: i915_perf_register | |
384 | .. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c | |
385 | :functions: i915_perf_unregister | |
386 | .. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c | |
387 | :functions: i915_perf_open_ioctl | |
388 | .. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c | |
389 | :functions: i915_perf_release | |
390 | ||
391 | i915 Perf Stream | |
392 | ---------------- | |
393 | ||
394 | This section covers the stream-semantics-agnostic structures and functions | |
395 | for representing an i915 perf stream FD and associated file operations. | |
396 | ||
397 | .. kernel-doc:: drivers/gpu/drm/i915/i915_drv.h | |
398 | :functions: i915_perf_stream | |
399 | .. kernel-doc:: drivers/gpu/drm/i915/i915_drv.h | |
400 | :functions: i915_perf_stream_ops | |
401 | ||
402 | .. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c | |
403 | :functions: read_properties_unlocked | |
404 | .. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c | |
405 | :functions: i915_perf_open_ioctl_locked | |
406 | .. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c | |
407 | :functions: i915_perf_destroy_locked | |
408 | .. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c | |
409 | :functions: i915_perf_read | |
410 | .. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c | |
411 | :functions: i915_perf_ioctl | |
412 | .. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c | |
413 | :functions: i915_perf_enable_locked | |
414 | .. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c | |
415 | :functions: i915_perf_disable_locked | |
416 | .. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c | |
417 | :functions: i915_perf_poll | |
418 | .. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c | |
419 | :functions: i915_perf_poll_locked | |
420 | ||
421 | i915 Perf Observation Architecture Stream | |
422 | ----------------------------------------- | |
423 | ||
424 | .. kernel-doc:: drivers/gpu/drm/i915/i915_drv.h | |
425 | :functions: i915_oa_ops | |
426 | ||
427 | .. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c | |
428 | :functions: i915_oa_stream_init | |
429 | .. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c | |
430 | :functions: i915_oa_read | |
431 | .. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c | |
432 | :functions: i915_oa_stream_enable | |
433 | .. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c | |
434 | :functions: i915_oa_stream_disable | |
435 | .. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c | |
436 | :functions: i915_oa_wait_unlocked | |
437 | .. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c | |
438 | :functions: i915_oa_poll_wait | |
439 | ||
440 | All i915 Perf Internals | |
441 | ----------------------- | |
442 | ||
443 | This section simply includes all currently documented i915 perf internals, in | |
444 | no particular order, but may include some more minor utilities or platform | |
445 | specific details than found in the more high-level sections. | |
446 | ||
447 | .. kernel-doc:: drivers/gpu/drm/i915/i915_perf.c | |
448 | :internal: | |
449 | ||
ca00c2b9 | 450 | .. WARNING: DOCPROC directive not supported: !Cdrivers/gpu/drm/i915/i915_irq.c |