]>
Commit | Line | Data |
---|---|---|
04d348ae ZW |
1 | /* |
2 | * Copyright(c) 2011-2016 Intel Corporation. All rights reserved. | |
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 (including the next | |
12 | * paragraph) shall be included in all copies or substantial portions of the | |
13 | * Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
21 | * SOFTWARE. | |
22 | * | |
23 | * Authors: | |
24 | * Ke Yu | |
25 | * Zhiyuan Lv <zhiyuan.lv@intel.com> | |
26 | * | |
27 | * Contributors: | |
28 | * Terrence Xu <terrence.xu@intel.com> | |
29 | * Changbin Du <changbin.du@intel.com> | |
30 | * Bing Niu <bing.niu@intel.com> | |
31 | * Zhi Wang <zhi.a.wang@intel.com> | |
32 | * | |
33 | */ | |
34 | ||
35 | #include "i915_drv.h" | |
feddf6e8 | 36 | #include "gvt.h" |
04d348ae ZW |
37 | |
38 | static int get_edp_pipe(struct intel_vgpu *vgpu) | |
39 | { | |
40 | u32 data = vgpu_vreg(vgpu, _TRANS_DDI_FUNC_CTL_EDP); | |
41 | int pipe = -1; | |
42 | ||
43 | switch (data & TRANS_DDI_EDP_INPUT_MASK) { | |
44 | case TRANS_DDI_EDP_INPUT_A_ON: | |
45 | case TRANS_DDI_EDP_INPUT_A_ONOFF: | |
46 | pipe = PIPE_A; | |
47 | break; | |
48 | case TRANS_DDI_EDP_INPUT_B_ONOFF: | |
49 | pipe = PIPE_B; | |
50 | break; | |
51 | case TRANS_DDI_EDP_INPUT_C_ONOFF: | |
52 | pipe = PIPE_C; | |
53 | break; | |
54 | } | |
55 | return pipe; | |
56 | } | |
57 | ||
58 | static int edp_pipe_is_enabled(struct intel_vgpu *vgpu) | |
59 | { | |
60 | struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv; | |
61 | ||
62 | if (!(vgpu_vreg(vgpu, PIPECONF(_PIPE_EDP)) & PIPECONF_ENABLE)) | |
63 | return 0; | |
64 | ||
65 | if (!(vgpu_vreg(vgpu, _TRANS_DDI_FUNC_CTL_EDP) & TRANS_DDI_FUNC_ENABLE)) | |
66 | return 0; | |
67 | return 1; | |
68 | } | |
69 | ||
70 | static int pipe_is_enabled(struct intel_vgpu *vgpu, int pipe) | |
71 | { | |
72 | struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv; | |
73 | ||
74 | if (WARN_ON(pipe < PIPE_A || pipe >= I915_MAX_PIPES)) | |
75 | return -EINVAL; | |
76 | ||
77 | if (vgpu_vreg(vgpu, PIPECONF(pipe)) & PIPECONF_ENABLE) | |
78 | return 1; | |
79 | ||
80 | if (edp_pipe_is_enabled(vgpu) && | |
81 | get_edp_pipe(vgpu) == pipe) | |
82 | return 1; | |
83 | return 0; | |
84 | } | |
85 | ||
bca5609f ZW |
86 | static unsigned char virtual_dp_monitor_edid[GVT_EDID_NUM][EDID_SIZE] = { |
87 | { | |
88 | /* EDID with 1024x768 as its resolution */ | |
89 | /*Header*/ | |
90 | 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, | |
91 | /* Vendor & Product Identification */ | |
92 | 0x22, 0xf0, 0x54, 0x29, 0x00, 0x00, 0x00, 0x00, 0x04, 0x17, | |
93 | /* Version & Revision */ | |
94 | 0x01, 0x04, | |
95 | /* Basic Display Parameters & Features */ | |
96 | 0xa5, 0x34, 0x20, 0x78, 0x23, | |
97 | /* Color Characteristics */ | |
98 | 0xfc, 0x81, 0xa4, 0x55, 0x4d, 0x9d, 0x25, 0x12, 0x50, 0x54, | |
99 | /* Established Timings: maximum resolution is 1024x768 */ | |
100 | 0x21, 0x08, 0x00, | |
101 | /* Standard Timings. All invalid */ | |
102 | 0x00, 0xc0, 0x00, 0xc0, 0x00, 0x40, 0x00, 0x80, 0x00, 0x00, | |
103 | 0x00, 0x40, 0x00, 0x00, 0x00, 0x01, | |
104 | /* 18 Byte Data Blocks 1: invalid */ | |
105 | 0x00, 0x00, 0x80, 0xa0, 0x70, 0xb0, | |
106 | 0x23, 0x40, 0x30, 0x20, 0x36, 0x00, 0x06, 0x44, 0x21, 0x00, 0x00, 0x1a, | |
107 | /* 18 Byte Data Blocks 2: invalid */ | |
108 | 0x00, 0x00, 0x00, 0xfd, 0x00, 0x18, 0x3c, 0x18, 0x50, 0x11, 0x00, 0x0a, | |
109 | 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, | |
110 | /* 18 Byte Data Blocks 3: invalid */ | |
111 | 0x00, 0x00, 0x00, 0xfc, 0x00, 0x48, | |
112 | 0x50, 0x20, 0x5a, 0x52, 0x32, 0x34, 0x34, 0x30, 0x77, 0x0a, 0x20, 0x20, | |
113 | /* 18 Byte Data Blocks 4: invalid */ | |
114 | 0x00, 0x00, 0x00, 0xff, 0x00, 0x43, 0x4e, 0x34, 0x33, 0x30, 0x34, 0x30, | |
115 | 0x44, 0x58, 0x51, 0x0a, 0x20, 0x20, | |
116 | /* Extension Block Count */ | |
117 | 0x00, | |
118 | /* Checksum */ | |
119 | 0xef, | |
120 | }, | |
121 | { | |
2c883136 | 122 | /* EDID with 1920x1200 as its resolution */ |
bca5609f ZW |
123 | /*Header*/ |
124 | 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, | |
125 | /* Vendor & Product Identification */ | |
126 | 0x22, 0xf0, 0x54, 0x29, 0x00, 0x00, 0x00, 0x00, 0x04, 0x17, | |
127 | /* Version & Revision */ | |
128 | 0x01, 0x04, | |
129 | /* Basic Display Parameters & Features */ | |
130 | 0xa5, 0x34, 0x20, 0x78, 0x23, | |
131 | /* Color Characteristics */ | |
132 | 0xfc, 0x81, 0xa4, 0x55, 0x4d, 0x9d, 0x25, 0x12, 0x50, 0x54, | |
133 | /* Established Timings: maximum resolution is 1024x768 */ | |
134 | 0x21, 0x08, 0x00, | |
135 | /* | |
136 | * Standard Timings. | |
137 | * below new resolutions can be supported: | |
138 | * 1920x1080, 1280x720, 1280x960, 1280x1024, | |
139 | * 1440x900, 1600x1200, 1680x1050 | |
140 | */ | |
141 | 0xd1, 0xc0, 0x81, 0xc0, 0x81, 0x40, 0x81, 0x80, 0x95, 0x00, | |
142 | 0xa9, 0x40, 0xb3, 0x00, 0x01, 0x01, | |
143 | /* 18 Byte Data Blocks 1: max resolution is 1920x1200 */ | |
144 | 0x28, 0x3c, 0x80, 0xa0, 0x70, 0xb0, | |
145 | 0x23, 0x40, 0x30, 0x20, 0x36, 0x00, 0x06, 0x44, 0x21, 0x00, 0x00, 0x1a, | |
146 | /* 18 Byte Data Blocks 2: invalid */ | |
147 | 0x00, 0x00, 0x00, 0xfd, 0x00, 0x18, 0x3c, 0x18, 0x50, 0x11, 0x00, 0x0a, | |
148 | 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, | |
149 | /* 18 Byte Data Blocks 3: invalid */ | |
150 | 0x00, 0x00, 0x00, 0xfc, 0x00, 0x48, | |
151 | 0x50, 0x20, 0x5a, 0x52, 0x32, 0x34, 0x34, 0x30, 0x77, 0x0a, 0x20, 0x20, | |
152 | /* 18 Byte Data Blocks 4: invalid */ | |
153 | 0x00, 0x00, 0x00, 0xff, 0x00, 0x43, 0x4e, 0x34, 0x33, 0x30, 0x34, 0x30, | |
154 | 0x44, 0x58, 0x51, 0x0a, 0x20, 0x20, | |
155 | /* Extension Block Count */ | |
156 | 0x00, | |
157 | /* Checksum */ | |
158 | 0x45, | |
159 | }, | |
04d348ae ZW |
160 | }; |
161 | ||
162 | #define DPCD_HEADER_SIZE 0xb | |
163 | ||
999ccb40 | 164 | static u8 dpcd_fix_data[DPCD_HEADER_SIZE] = { |
04d348ae ZW |
165 | 0x11, 0x0a, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 |
166 | }; | |
167 | ||
168 | static void emulate_monitor_status_change(struct intel_vgpu *vgpu) | |
169 | { | |
170 | struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv; | |
171 | vgpu_vreg(vgpu, SDEISR) &= ~(SDE_PORTB_HOTPLUG_CPT | | |
172 | SDE_PORTC_HOTPLUG_CPT | | |
173 | SDE_PORTD_HOTPLUG_CPT); | |
174 | ||
175 | if (IS_SKYLAKE(dev_priv)) | |
176 | vgpu_vreg(vgpu, SDEISR) &= ~(SDE_PORTA_HOTPLUG_SPT | | |
177 | SDE_PORTE_HOTPLUG_SPT); | |
178 | ||
858b0f57 | 179 | if (intel_vgpu_has_monitor_on_port(vgpu, PORT_B)) { |
04d348ae | 180 | vgpu_vreg(vgpu, SDEISR) |= SDE_PORTB_HOTPLUG_CPT; |
858b0f57 BN |
181 | vgpu_vreg(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDIB_DETECTED; |
182 | } | |
04d348ae | 183 | |
858b0f57 | 184 | if (intel_vgpu_has_monitor_on_port(vgpu, PORT_C)) { |
04d348ae | 185 | vgpu_vreg(vgpu, SDEISR) |= SDE_PORTC_HOTPLUG_CPT; |
858b0f57 BN |
186 | vgpu_vreg(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDIC_DETECTED; |
187 | } | |
04d348ae | 188 | |
858b0f57 | 189 | if (intel_vgpu_has_monitor_on_port(vgpu, PORT_D)) { |
04d348ae | 190 | vgpu_vreg(vgpu, SDEISR) |= SDE_PORTD_HOTPLUG_CPT; |
858b0f57 BN |
191 | vgpu_vreg(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDID_DETECTED; |
192 | } | |
04d348ae ZW |
193 | |
194 | if (IS_SKYLAKE(dev_priv) && | |
195 | intel_vgpu_has_monitor_on_port(vgpu, PORT_E)) { | |
196 | vgpu_vreg(vgpu, SDEISR) |= SDE_PORTE_HOTPLUG_SPT; | |
197 | } | |
198 | ||
199 | if (intel_vgpu_has_monitor_on_port(vgpu, PORT_A)) { | |
200 | if (IS_BROADWELL(dev_priv)) | |
201 | vgpu_vreg(vgpu, GEN8_DE_PORT_ISR) |= | |
202 | GEN8_PORT_DP_A_HOTPLUG; | |
203 | else | |
204 | vgpu_vreg(vgpu, SDEISR) |= SDE_PORTA_HOTPLUG_SPT; | |
858b0f57 BN |
205 | |
206 | vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_A)) |= DDI_INIT_DISPLAY_DETECTED; | |
04d348ae ZW |
207 | } |
208 | } | |
209 | ||
210 | static void clean_virtual_dp_monitor(struct intel_vgpu *vgpu, int port_num) | |
211 | { | |
212 | struct intel_vgpu_port *port = intel_vgpu_port(vgpu, port_num); | |
213 | ||
214 | kfree(port->edid); | |
215 | port->edid = NULL; | |
216 | ||
217 | kfree(port->dpcd); | |
218 | port->dpcd = NULL; | |
219 | } | |
220 | ||
221 | static int setup_virtual_dp_monitor(struct intel_vgpu *vgpu, int port_num, | |
d1a513be | 222 | int type, unsigned int resolution) |
04d348ae ZW |
223 | { |
224 | struct intel_vgpu_port *port = intel_vgpu_port(vgpu, port_num); | |
225 | ||
d1a513be ZW |
226 | if (WARN_ON(resolution >= GVT_EDID_NUM)) |
227 | return -EINVAL; | |
228 | ||
04d348ae ZW |
229 | port->edid = kzalloc(sizeof(*(port->edid)), GFP_KERNEL); |
230 | if (!port->edid) | |
231 | return -ENOMEM; | |
232 | ||
233 | port->dpcd = kzalloc(sizeof(*(port->dpcd)), GFP_KERNEL); | |
234 | if (!port->dpcd) { | |
235 | kfree(port->edid); | |
236 | return -ENOMEM; | |
237 | } | |
238 | ||
d1a513be | 239 | memcpy(port->edid->edid_block, virtual_dp_monitor_edid[resolution], |
04d348ae ZW |
240 | EDID_SIZE); |
241 | port->edid->data_valid = true; | |
242 | ||
243 | memcpy(port->dpcd->data, dpcd_fix_data, DPCD_HEADER_SIZE); | |
244 | port->dpcd->data_valid = true; | |
245 | port->dpcd->data[DPCD_SINK_COUNT] = 0x1; | |
246 | port->type = type; | |
247 | ||
248 | emulate_monitor_status_change(vgpu); | |
249 | return 0; | |
250 | } | |
251 | ||
252 | /** | |
253 | * intel_gvt_check_vblank_emulation - check if vblank emulation timer should | |
254 | * be turned on/off when a virtual pipe is enabled/disabled. | |
255 | * @gvt: a GVT device | |
256 | * | |
257 | * This function is used to turn on/off vblank timer according to currently | |
258 | * enabled/disabled virtual pipes. | |
259 | * | |
260 | */ | |
261 | void intel_gvt_check_vblank_emulation(struct intel_gvt *gvt) | |
262 | { | |
263 | struct intel_gvt_irq *irq = &gvt->irq; | |
264 | struct intel_vgpu *vgpu; | |
265 | bool have_enabled_pipe = false; | |
266 | int pipe, id; | |
267 | ||
268 | if (WARN_ON(!mutex_is_locked(&gvt->lock))) | |
269 | return; | |
270 | ||
271 | hrtimer_cancel(&irq->vblank_timer.timer); | |
272 | ||
273 | for_each_active_vgpu(gvt, vgpu, id) { | |
274 | for (pipe = 0; pipe < I915_MAX_PIPES; pipe++) { | |
275 | have_enabled_pipe = | |
276 | pipe_is_enabled(vgpu, pipe); | |
277 | if (have_enabled_pipe) | |
278 | break; | |
279 | } | |
280 | } | |
281 | ||
282 | if (have_enabled_pipe) | |
283 | hrtimer_start(&irq->vblank_timer.timer, | |
284 | ktime_add_ns(ktime_get(), irq->vblank_timer.period), | |
285 | HRTIMER_MODE_ABS); | |
286 | } | |
287 | ||
288 | static void emulate_vblank_on_pipe(struct intel_vgpu *vgpu, int pipe) | |
289 | { | |
290 | struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv; | |
291 | struct intel_vgpu_irq *irq = &vgpu->irq; | |
292 | int vblank_event[] = { | |
293 | [PIPE_A] = PIPE_A_VBLANK, | |
294 | [PIPE_B] = PIPE_B_VBLANK, | |
295 | [PIPE_C] = PIPE_C_VBLANK, | |
296 | }; | |
297 | int event; | |
298 | ||
299 | if (pipe < PIPE_A || pipe > PIPE_C) | |
300 | return; | |
301 | ||
302 | for_each_set_bit(event, irq->flip_done_event[pipe], | |
303 | INTEL_GVT_EVENT_MAX) { | |
304 | clear_bit(event, irq->flip_done_event[pipe]); | |
305 | if (!pipe_is_enabled(vgpu, pipe)) | |
306 | continue; | |
307 | ||
308 | vgpu_vreg(vgpu, PIPE_FLIPCOUNT_G4X(pipe))++; | |
309 | intel_vgpu_trigger_virtual_event(vgpu, event); | |
310 | } | |
311 | ||
312 | if (pipe_is_enabled(vgpu, pipe)) { | |
313 | vgpu_vreg(vgpu, PIPE_FRMCOUNT_G4X(pipe))++; | |
314 | intel_vgpu_trigger_virtual_event(vgpu, vblank_event[pipe]); | |
315 | } | |
316 | } | |
317 | ||
318 | static void emulate_vblank(struct intel_vgpu *vgpu) | |
319 | { | |
320 | int pipe; | |
321 | ||
322 | for_each_pipe(vgpu->gvt->dev_priv, pipe) | |
323 | emulate_vblank_on_pipe(vgpu, pipe); | |
324 | } | |
325 | ||
326 | /** | |
327 | * intel_gvt_emulate_vblank - trigger vblank events for vGPUs on GVT device | |
328 | * @gvt: a GVT device | |
329 | * | |
330 | * This function is used to trigger vblank interrupts for vGPUs on GVT device | |
331 | * | |
332 | */ | |
333 | void intel_gvt_emulate_vblank(struct intel_gvt *gvt) | |
334 | { | |
335 | struct intel_vgpu *vgpu; | |
336 | int id; | |
337 | ||
338 | if (WARN_ON(!mutex_is_locked(&gvt->lock))) | |
339 | return; | |
340 | ||
341 | for_each_active_vgpu(gvt, vgpu, id) | |
342 | emulate_vblank(vgpu); | |
343 | } | |
344 | ||
345 | /** | |
346 | * intel_vgpu_clean_display - clean vGPU virtual display emulation | |
347 | * @vgpu: a vGPU | |
348 | * | |
349 | * This function is used to clean vGPU virtual display emulation stuffs | |
350 | * | |
351 | */ | |
352 | void intel_vgpu_clean_display(struct intel_vgpu *vgpu) | |
353 | { | |
354 | struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv; | |
355 | ||
356 | if (IS_SKYLAKE(dev_priv)) | |
357 | clean_virtual_dp_monitor(vgpu, PORT_D); | |
358 | else | |
359 | clean_virtual_dp_monitor(vgpu, PORT_B); | |
360 | } | |
361 | ||
362 | /** | |
363 | * intel_vgpu_init_display- initialize vGPU virtual display emulation | |
364 | * @vgpu: a vGPU | |
365 | * | |
366 | * This function is used to initialize vGPU virtual display emulation stuffs | |
367 | * | |
368 | * Returns: | |
369 | * Zero on success, negative error code if failed. | |
370 | * | |
371 | */ | |
d1a513be | 372 | int intel_vgpu_init_display(struct intel_vgpu *vgpu, u64 resolution) |
04d348ae ZW |
373 | { |
374 | struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv; | |
375 | ||
376 | intel_vgpu_init_i2c_edid(vgpu); | |
377 | ||
378 | if (IS_SKYLAKE(dev_priv)) | |
d1a513be ZW |
379 | return setup_virtual_dp_monitor(vgpu, PORT_D, GVT_DP_D, |
380 | resolution); | |
04d348ae | 381 | else |
d1a513be ZW |
382 | return setup_virtual_dp_monitor(vgpu, PORT_B, GVT_DP_B, |
383 | resolution); | |
04d348ae | 384 | } |
6294b61b CD |
385 | |
386 | /** | |
387 | * intel_vgpu_reset_display- reset vGPU virtual display emulation | |
388 | * @vgpu: a vGPU | |
389 | * | |
390 | * This function is used to reset vGPU virtual display emulation stuffs | |
391 | * | |
392 | */ | |
393 | void intel_vgpu_reset_display(struct intel_vgpu *vgpu) | |
394 | { | |
395 | emulate_monitor_status_change(vgpu); | |
396 | } |