1 ===========================
2 drm/i915 Intel GFX Driver
3 ===========================
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.
10 Core Driver Infrastructure
11 ==========================
13 This section covers core driver infrastructure used by both the display
14 and the GEM parts of the driver.
16 Runtime Power Management
17 ------------------------
19 .. kernel-doc:: drivers/gpu/drm/i915/intel_runtime_pm.c
22 .. kernel-doc:: drivers/gpu/drm/i915/intel_runtime_pm.c
25 .. kernel-doc:: drivers/gpu/drm/i915/intel_uncore.c
31 .. kernel-doc:: drivers/gpu/drm/i915/i915_irq.c
32 :doc: interrupt handling
34 .. kernel-doc:: drivers/gpu/drm/i915/i915_irq.c
35 :functions: intel_irq_init intel_irq_init_hw intel_hpd_init
37 .. kernel-doc:: drivers/gpu/drm/i915/i915_irq.c
38 :functions: intel_runtime_pm_disable_interrupts
40 .. kernel-doc:: drivers/gpu/drm/i915/i915_irq.c
41 :functions: intel_runtime_pm_enable_interrupts
43 Intel GVT-g Guest Support(vGPU)
44 -------------------------------
46 .. kernel-doc:: drivers/gpu/drm/i915/i915_vgpu.c
47 :doc: Intel GVT-g guest support
49 .. kernel-doc:: drivers/gpu/drm/i915/i915_vgpu.c
52 Intel GVT-g Host Support(vGPU device model)
53 -------------------------------------------
55 .. kernel-doc:: drivers/gpu/drm/i915/intel_gvt.c
56 :doc: Intel GVT-g host support
58 .. kernel-doc:: drivers/gpu/drm/i915/intel_gvt.c
61 Display Hardware Handling
62 =========================
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.
68 Mode Setting Infrastructure
69 ---------------------------
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
79 .. kernel-doc:: drivers/gpu/drm/i915/intel_frontbuffer.c
80 :doc: frontbuffer tracking
82 .. kernel-doc:: drivers/gpu/drm/i915/intel_frontbuffer.h
85 .. kernel-doc:: drivers/gpu/drm/i915/intel_frontbuffer.c
88 .. kernel-doc:: drivers/gpu/drm/i915/i915_gem.c
89 :functions: i915_gem_track_fb
91 Display FIFO Underrun Reporting
92 -------------------------------
94 .. kernel-doc:: drivers/gpu/drm/i915/intel_fifo_underrun.c
95 :doc: fifo underrun handling
97 .. kernel-doc:: drivers/gpu/drm/i915/intel_fifo_underrun.c
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
112 .. kernel-doc:: drivers/gpu/drm/i915/intel_atomic_plane.c
113 :doc: atomic plane helpers
115 .. kernel-doc:: drivers/gpu/drm/i915/intel_atomic_plane.c
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.
129 .. kernel-doc:: drivers/gpu/drm/i915/intel_hotplug.c
132 .. kernel-doc:: drivers/gpu/drm/i915/intel_hotplug.c
135 High Definition Audio
136 ---------------------
138 .. kernel-doc:: drivers/gpu/drm/i915/intel_audio.c
139 :doc: High Definition Audio over HDMI and Display Port
141 .. kernel-doc:: drivers/gpu/drm/i915/intel_audio.c
144 .. kernel-doc:: include/drm/i915_component.h
147 Panel Self Refresh PSR (PSR/SRD)
148 --------------------------------
150 .. kernel-doc:: drivers/gpu/drm/i915/intel_psr.c
151 :doc: Panel Self Refresh (PSR/SRD)
153 .. kernel-doc:: drivers/gpu/drm/i915/intel_psr.c
156 Frame Buffer Compression (FBC)
157 ------------------------------
159 .. kernel-doc:: drivers/gpu/drm/i915/intel_fbc.c
160 :doc: Frame Buffer Compression (FBC)
162 .. kernel-doc:: drivers/gpu/drm/i915/intel_fbc.c
165 Display Refresh Rate Switching (DRRS)
166 -------------------------------------
168 .. kernel-doc:: drivers/gpu/drm/i915/intel_dp.c
169 :doc: Display Refresh Rate Switching (DRRS)
171 .. kernel-doc:: drivers/gpu/drm/i915/intel_dp.c
172 :functions: intel_dp_set_drrs_state
174 .. kernel-doc:: drivers/gpu/drm/i915/intel_dp.c
175 :functions: intel_edp_drrs_enable
177 .. kernel-doc:: drivers/gpu/drm/i915/intel_dp.c
178 :functions: intel_edp_drrs_disable
180 .. kernel-doc:: drivers/gpu/drm/i915/intel_dp.c
181 :functions: intel_edp_drrs_invalidate
183 .. kernel-doc:: drivers/gpu/drm/i915/intel_dp.c
184 :functions: intel_edp_drrs_flush
186 .. kernel-doc:: drivers/gpu/drm/i915/intel_dp.c
187 :functions: intel_dp_drrs_init
192 .. kernel-doc:: drivers/gpu/drm/i915/intel_dpio_phy.c
195 CSR firmware support for DMC
196 ----------------------------
198 .. kernel-doc:: drivers/gpu/drm/i915/intel_csr.c
199 :doc: csr support for dmc
201 .. kernel-doc:: drivers/gpu/drm/i915/intel_csr.c
204 Video BIOS Table (VBT)
205 ----------------------
207 .. kernel-doc:: drivers/gpu/drm/i915/intel_bios.c
208 :doc: Video BIOS Table (VBT)
210 .. kernel-doc:: drivers/gpu/drm/i915/intel_bios.c
213 .. kernel-doc:: drivers/gpu/drm/i915/intel_vbt_defs.h
216 Memory Management and Command Submission
217 ========================================
219 This sections covers all things related to the GEM implementation in the
225 .. kernel-doc:: drivers/gpu/drm/i915/i915_cmd_parser.c
226 :doc: batch buffer command parser
228 .. kernel-doc:: drivers/gpu/drm/i915/i915_cmd_parser.c
234 .. kernel-doc:: drivers/gpu/drm/i915/i915_gem_batch_pool.c
237 .. kernel-doc:: drivers/gpu/drm/i915/i915_gem_batch_pool.c
240 Logical Rings, Logical Ring Contexts and Execlists
241 --------------------------------------------------
243 .. kernel-doc:: drivers/gpu/drm/i915/intel_lrc.c
244 :doc: Logical Rings, Logical Ring Contexts and Execlists
246 .. kernel-doc:: drivers/gpu/drm/i915/intel_lrc.c
252 .. kernel-doc:: drivers/gpu/drm/i915/i915_gem_gtt.c
253 :doc: Global GTT views
255 .. kernel-doc:: drivers/gpu/drm/i915/i915_gem_gtt.c
258 GTT Fences and Swizzling
259 ------------------------
261 .. kernel-doc:: drivers/gpu/drm/i915/i915_gem_fence_reg.c
264 Global GTT Fence Handling
265 ~~~~~~~~~~~~~~~~~~~~~~~~~
267 .. kernel-doc:: drivers/gpu/drm/i915/i915_gem_fence_reg.c
268 :doc: fence register handling
270 Hardware Tiling and Swizzling Details
271 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
273 .. kernel-doc:: drivers/gpu/drm/i915/i915_gem_fence_reg.c
274 :doc: tiling swizzling details
279 .. kernel-doc:: drivers/gpu/drm/i915/i915_gem_tiling.c
282 .. kernel-doc:: drivers/gpu/drm/i915/i915_gem_tiling.c
283 :doc: buffer object tiling
285 Buffer Object Eviction
286 ----------------------
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.
294 .. kernel-doc:: drivers/gpu/drm/i915/i915_gem_evict.c
297 Buffer Object Memory Shrinking
298 ------------------------------
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.
305 .. kernel-doc:: drivers/gpu/drm/i915/i915_gem_shrinker.c
311 GuC-specific firmware loader
312 ----------------------------
314 .. kernel-doc:: drivers/gpu/drm/i915/intel_guc_loader.c
315 :doc: GuC-specific firmware loader
317 .. kernel-doc:: drivers/gpu/drm/i915/intel_guc_loader.c
320 GuC-based command submission
321 ----------------------------
323 .. kernel-doc:: drivers/gpu/drm/i915/i915_guc_submission.c
324 :doc: GuC-based command submission
326 .. kernel-doc:: drivers/gpu/drm/i915/i915_guc_submission.c
332 .. kernel-doc:: drivers/gpu/drm/i915/intel_guc_fwif.h
333 :doc: GuC Firmware Layout
338 This sections covers all things related to the tracepoints implemented
341 i915_ppgtt_create and i915_ppgtt_release
342 ----------------------------------------
344 .. kernel-doc:: drivers/gpu/drm/i915/i915_trace.h
345 :doc: i915_ppgtt_create and i915_ppgtt_release tracepoints
347 i915_context_create and i915_context_free
348 -----------------------------------------
350 .. kernel-doc:: drivers/gpu/drm/i915/i915_trace.h
351 :doc: i915_context_create and i915_context_free tracepoints
356 .. kernel-doc:: drivers/gpu/drm/i915/i915_trace.h
357 :doc: switch_mm tracepoint
359 .. WARNING: DOCPROC directive not supported: !Cdrivers/gpu/drm/i915/i915_irq.c