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 * Kevin Tian <kevin.tian@intel.com>
25 * Eddie Dong <eddie.dong@intel.com>
26 * Zhiyuan Lv <zhiyuan.lv@intel.com>
27 *
28 * Contributors:
29 * Min He <min.he@intel.com>
30 * Tina Zhang <tina.zhang@intel.com>
31 * Pei Zhang <pei.zhang@intel.com>
32 * Niu Bing <bing.niu@intel.com>
33 * Ping Gao <ping.a.gao@intel.com>
34 * Zhi Wang <zhi.a.wang@intel.com>
35 *
36
37 */
38
39 #include "i915_drv.h"
40 #include "i915_reg.h"
41 #include "gvt.h"
42 #include "i915_pvinfo.h"
43 #include "intel_mchbar_regs.h"
44 #include "display/intel_display_types.h"
45 #include "display/intel_dmc_regs.h"
46 #include "display/intel_fbc.h"
47 #include "display/vlv_dsi_pll_regs.h"
48 #include "gt/intel_gt_regs.h"
49
50 /* XXX FIXME i915 has changed PP_XXX definition */
51 #define PCH_PP_STATUS _MMIO(0xc7200)
52 #define PCH_PP_CONTROL _MMIO(0xc7204)
53 #define PCH_PP_ON_DELAYS _MMIO(0xc7208)
54 #define PCH_PP_OFF_DELAYS _MMIO(0xc720c)
55 #define PCH_PP_DIVISOR _MMIO(0xc7210)
56
intel_gvt_get_device_type(struct intel_gvt * gvt)57 unsigned long intel_gvt_get_device_type(struct intel_gvt *gvt)
58 {
59 struct drm_i915_private *i915 = gvt->gt->i915;
60
61 if (IS_BROADWELL(i915))
62 return D_BDW;
63 else if (IS_SKYLAKE(i915))
64 return D_SKL;
65 else if (IS_KABYLAKE(i915))
66 return D_KBL;
67 else if (IS_BROXTON(i915))
68 return D_BXT;
69 else if (IS_COFFEELAKE(i915) || IS_COMETLAKE(i915))
70 return D_CFL;
71
72 return 0;
73 }
74
intel_gvt_match_device(struct intel_gvt * gvt,unsigned long device)75 static bool intel_gvt_match_device(struct intel_gvt *gvt,
76 unsigned long device)
77 {
78 return intel_gvt_get_device_type(gvt) & device;
79 }
80
read_vreg(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)81 static void read_vreg(struct intel_vgpu *vgpu, unsigned int offset,
82 void *p_data, unsigned int bytes)
83 {
84 memcpy(p_data, &vgpu_vreg(vgpu, offset), bytes);
85 }
86
write_vreg(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)87 static void write_vreg(struct intel_vgpu *vgpu, unsigned int offset,
88 void *p_data, unsigned int bytes)
89 {
90 memcpy(&vgpu_vreg(vgpu, offset), p_data, bytes);
91 }
92
intel_gvt_find_mmio_info(struct intel_gvt * gvt,unsigned int offset)93 struct intel_gvt_mmio_info *intel_gvt_find_mmio_info(struct intel_gvt *gvt,
94 unsigned int offset)
95 {
96 struct intel_gvt_mmio_info *e;
97
98 hash_for_each_possible(gvt->mmio.mmio_info_table, e, node, offset) {
99 if (e->offset == offset)
100 return e;
101 }
102 return NULL;
103 }
104
setup_mmio_info(struct intel_gvt * gvt,u32 offset,u32 size,u16 flags,u32 addr_mask,u32 ro_mask,u32 device,gvt_mmio_func read,gvt_mmio_func write)105 static int setup_mmio_info(struct intel_gvt *gvt, u32 offset, u32 size,
106 u16 flags, u32 addr_mask, u32 ro_mask, u32 device,
107 gvt_mmio_func read, gvt_mmio_func write)
108 {
109 struct intel_gvt_mmio_info *p;
110 u32 start, end, i;
111
112 if (!intel_gvt_match_device(gvt, device))
113 return 0;
114
115 if (WARN_ON(!IS_ALIGNED(offset, 4)))
116 return -EINVAL;
117
118 start = offset;
119 end = offset + size;
120
121 for (i = start; i < end; i += 4) {
122 p = intel_gvt_find_mmio_info(gvt, i);
123 if (!p) {
124 WARN(1, "assign a handler to a non-tracked mmio %x\n",
125 i);
126 return -ENODEV;
127 }
128 p->ro_mask = ro_mask;
129 gvt->mmio.mmio_attribute[i / 4] = flags;
130 if (read)
131 p->read = read;
132 if (write)
133 p->write = write;
134 }
135 return 0;
136 }
137
138 /**
139 * intel_gvt_render_mmio_to_engine - convert a mmio offset into the engine
140 * @gvt: a GVT device
141 * @offset: register offset
142 *
143 * Returns:
144 * The engine containing the offset within its mmio page.
145 */
146 const struct intel_engine_cs *
intel_gvt_render_mmio_to_engine(struct intel_gvt * gvt,unsigned int offset)147 intel_gvt_render_mmio_to_engine(struct intel_gvt *gvt, unsigned int offset)
148 {
149 struct intel_engine_cs *engine;
150 enum intel_engine_id id;
151
152 offset &= ~GENMASK(11, 0);
153 for_each_engine(engine, gvt->gt, id)
154 if (engine->mmio_base == offset)
155 return engine;
156
157 return NULL;
158 }
159
160 #define offset_to_fence_num(offset) \
161 ((offset - i915_mmio_reg_offset(FENCE_REG_GEN6_LO(0))) >> 3)
162
163 #define fence_num_to_offset(num) \
164 (num * 8 + i915_mmio_reg_offset(FENCE_REG_GEN6_LO(0)))
165
166
enter_failsafe_mode(struct intel_vgpu * vgpu,int reason)167 void enter_failsafe_mode(struct intel_vgpu *vgpu, int reason)
168 {
169 switch (reason) {
170 case GVT_FAILSAFE_UNSUPPORTED_GUEST:
171 pr_err("Detected your guest driver doesn't support GVT-g.\n");
172 break;
173 case GVT_FAILSAFE_INSUFFICIENT_RESOURCE:
174 pr_err("Graphics resource is not enough for the guest\n");
175 break;
176 case GVT_FAILSAFE_GUEST_ERR:
177 pr_err("GVT Internal error for the guest\n");
178 break;
179 default:
180 break;
181 }
182 pr_err("Now vgpu %d will enter failsafe mode.\n", vgpu->id);
183 vgpu->failsafe = true;
184 }
185
sanitize_fence_mmio_access(struct intel_vgpu * vgpu,unsigned int fence_num,void * p_data,unsigned int bytes)186 static int sanitize_fence_mmio_access(struct intel_vgpu *vgpu,
187 unsigned int fence_num, void *p_data, unsigned int bytes)
188 {
189 unsigned int max_fence = vgpu_fence_sz(vgpu);
190
191 if (fence_num >= max_fence) {
192 gvt_vgpu_err("access oob fence reg %d/%d\n",
193 fence_num, max_fence);
194
195 /* When guest access oob fence regs without access
196 * pv_info first, we treat guest not supporting GVT,
197 * and we will let vgpu enter failsafe mode.
198 */
199 if (!vgpu->pv_notified)
200 enter_failsafe_mode(vgpu,
201 GVT_FAILSAFE_UNSUPPORTED_GUEST);
202
203 memset(p_data, 0, bytes);
204 return -EINVAL;
205 }
206 return 0;
207 }
208
gamw_echo_dev_rw_ia_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)209 static int gamw_echo_dev_rw_ia_write(struct intel_vgpu *vgpu,
210 unsigned int offset, void *p_data, unsigned int bytes)
211 {
212 u32 ips = (*(u32 *)p_data) & GAMW_ECO_ENABLE_64K_IPS_FIELD;
213
214 if (GRAPHICS_VER(vgpu->gvt->gt->i915) <= 10) {
215 if (ips == GAMW_ECO_ENABLE_64K_IPS_FIELD)
216 gvt_dbg_core("vgpu%d: ips enabled\n", vgpu->id);
217 else if (!ips)
218 gvt_dbg_core("vgpu%d: ips disabled\n", vgpu->id);
219 else {
220 /* All engines must be enabled together for vGPU,
221 * since we don't know which engine the ppgtt will
222 * bind to when shadowing.
223 */
224 gvt_vgpu_err("Unsupported IPS setting %x, cannot enable 64K gtt.\n",
225 ips);
226 return -EINVAL;
227 }
228 }
229
230 write_vreg(vgpu, offset, p_data, bytes);
231 return 0;
232 }
233
fence_mmio_read(struct intel_vgpu * vgpu,unsigned int off,void * p_data,unsigned int bytes)234 static int fence_mmio_read(struct intel_vgpu *vgpu, unsigned int off,
235 void *p_data, unsigned int bytes)
236 {
237 int ret;
238
239 ret = sanitize_fence_mmio_access(vgpu, offset_to_fence_num(off),
240 p_data, bytes);
241 if (ret)
242 return ret;
243 read_vreg(vgpu, off, p_data, bytes);
244 return 0;
245 }
246
fence_mmio_write(struct intel_vgpu * vgpu,unsigned int off,void * p_data,unsigned int bytes)247 static int fence_mmio_write(struct intel_vgpu *vgpu, unsigned int off,
248 void *p_data, unsigned int bytes)
249 {
250 struct intel_gvt *gvt = vgpu->gvt;
251 unsigned int fence_num = offset_to_fence_num(off);
252 int ret;
253
254 ret = sanitize_fence_mmio_access(vgpu, fence_num, p_data, bytes);
255 if (ret)
256 return ret;
257 write_vreg(vgpu, off, p_data, bytes);
258
259 mmio_hw_access_pre(gvt->gt);
260 intel_vgpu_write_fence(vgpu, fence_num,
261 vgpu_vreg64(vgpu, fence_num_to_offset(fence_num)));
262 mmio_hw_access_post(gvt->gt);
263 return 0;
264 }
265
266 #define CALC_MODE_MASK_REG(old, new) \
267 (((new) & GENMASK(31, 16)) \
268 | ((((old) & GENMASK(15, 0)) & ~((new) >> 16)) \
269 | ((new) & ((new) >> 16))))
270
mul_force_wake_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)271 static int mul_force_wake_write(struct intel_vgpu *vgpu,
272 unsigned int offset, void *p_data, unsigned int bytes)
273 {
274 u32 old, new;
275 u32 ack_reg_offset;
276
277 old = vgpu_vreg(vgpu, offset);
278 new = CALC_MODE_MASK_REG(old, *(u32 *)p_data);
279
280 if (GRAPHICS_VER(vgpu->gvt->gt->i915) >= 9) {
281 switch (offset) {
282 case FORCEWAKE_RENDER_GEN9_REG:
283 ack_reg_offset = FORCEWAKE_ACK_RENDER_GEN9_REG;
284 break;
285 case FORCEWAKE_GT_GEN9_REG:
286 ack_reg_offset = FORCEWAKE_ACK_GT_GEN9_REG;
287 break;
288 case FORCEWAKE_MEDIA_GEN9_REG:
289 ack_reg_offset = FORCEWAKE_ACK_MEDIA_GEN9_REG;
290 break;
291 default:
292 /*should not hit here*/
293 gvt_vgpu_err("invalid forcewake offset 0x%x\n", offset);
294 return -EINVAL;
295 }
296 } else {
297 ack_reg_offset = FORCEWAKE_ACK_HSW_REG;
298 }
299
300 vgpu_vreg(vgpu, offset) = new;
301 vgpu_vreg(vgpu, ack_reg_offset) = (new & GENMASK(15, 0));
302 return 0;
303 }
304
gdrst_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)305 static int gdrst_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
306 void *p_data, unsigned int bytes)
307 {
308 intel_engine_mask_t engine_mask = 0;
309 u32 data;
310
311 write_vreg(vgpu, offset, p_data, bytes);
312 data = vgpu_vreg(vgpu, offset);
313
314 if (data & GEN6_GRDOM_FULL) {
315 gvt_dbg_mmio("vgpu%d: request full GPU reset\n", vgpu->id);
316 engine_mask = ALL_ENGINES;
317 } else {
318 if (data & GEN6_GRDOM_RENDER) {
319 gvt_dbg_mmio("vgpu%d: request RCS reset\n", vgpu->id);
320 engine_mask |= BIT(RCS0);
321 }
322 if (data & GEN6_GRDOM_MEDIA) {
323 gvt_dbg_mmio("vgpu%d: request VCS reset\n", vgpu->id);
324 engine_mask |= BIT(VCS0);
325 }
326 if (data & GEN6_GRDOM_BLT) {
327 gvt_dbg_mmio("vgpu%d: request BCS Reset\n", vgpu->id);
328 engine_mask |= BIT(BCS0);
329 }
330 if (data & GEN6_GRDOM_VECS) {
331 gvt_dbg_mmio("vgpu%d: request VECS Reset\n", vgpu->id);
332 engine_mask |= BIT(VECS0);
333 }
334 if (data & GEN8_GRDOM_MEDIA2) {
335 gvt_dbg_mmio("vgpu%d: request VCS2 Reset\n", vgpu->id);
336 engine_mask |= BIT(VCS1);
337 }
338 if (data & GEN9_GRDOM_GUC) {
339 gvt_dbg_mmio("vgpu%d: request GUC Reset\n", vgpu->id);
340 vgpu_vreg_t(vgpu, GUC_STATUS) |= GS_MIA_IN_RESET;
341 }
342 engine_mask &= vgpu->gvt->gt->info.engine_mask;
343 }
344
345 /* vgpu_lock already hold by emulate mmio r/w */
346 intel_gvt_reset_vgpu_locked(vgpu, false, engine_mask);
347
348 /* sw will wait for the device to ack the reset request */
349 vgpu_vreg(vgpu, offset) = 0;
350
351 return 0;
352 }
353
gmbus_mmio_read(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)354 static int gmbus_mmio_read(struct intel_vgpu *vgpu, unsigned int offset,
355 void *p_data, unsigned int bytes)
356 {
357 return intel_gvt_i2c_handle_gmbus_read(vgpu, offset, p_data, bytes);
358 }
359
gmbus_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)360 static int gmbus_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
361 void *p_data, unsigned int bytes)
362 {
363 return intel_gvt_i2c_handle_gmbus_write(vgpu, offset, p_data, bytes);
364 }
365
pch_pp_control_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)366 static int pch_pp_control_mmio_write(struct intel_vgpu *vgpu,
367 unsigned int offset, void *p_data, unsigned int bytes)
368 {
369 write_vreg(vgpu, offset, p_data, bytes);
370
371 if (vgpu_vreg(vgpu, offset) & PANEL_POWER_ON) {
372 vgpu_vreg_t(vgpu, PCH_PP_STATUS) |= PP_ON;
373 vgpu_vreg_t(vgpu, PCH_PP_STATUS) |= PP_SEQUENCE_STATE_ON_IDLE;
374 vgpu_vreg_t(vgpu, PCH_PP_STATUS) &= ~PP_SEQUENCE_POWER_DOWN;
375 vgpu_vreg_t(vgpu, PCH_PP_STATUS) &= ~PP_CYCLE_DELAY_ACTIVE;
376
377 } else
378 vgpu_vreg_t(vgpu, PCH_PP_STATUS) &=
379 ~(PP_ON | PP_SEQUENCE_POWER_DOWN
380 | PP_CYCLE_DELAY_ACTIVE);
381 return 0;
382 }
383
transconf_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)384 static int transconf_mmio_write(struct intel_vgpu *vgpu,
385 unsigned int offset, void *p_data, unsigned int bytes)
386 {
387 write_vreg(vgpu, offset, p_data, bytes);
388
389 if (vgpu_vreg(vgpu, offset) & TRANS_ENABLE)
390 vgpu_vreg(vgpu, offset) |= TRANS_STATE_ENABLE;
391 else
392 vgpu_vreg(vgpu, offset) &= ~TRANS_STATE_ENABLE;
393 return 0;
394 }
395
lcpll_ctl_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)396 static int lcpll_ctl_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
397 void *p_data, unsigned int bytes)
398 {
399 write_vreg(vgpu, offset, p_data, bytes);
400
401 if (vgpu_vreg(vgpu, offset) & LCPLL_PLL_DISABLE)
402 vgpu_vreg(vgpu, offset) &= ~LCPLL_PLL_LOCK;
403 else
404 vgpu_vreg(vgpu, offset) |= LCPLL_PLL_LOCK;
405
406 if (vgpu_vreg(vgpu, offset) & LCPLL_CD_SOURCE_FCLK)
407 vgpu_vreg(vgpu, offset) |= LCPLL_CD_SOURCE_FCLK_DONE;
408 else
409 vgpu_vreg(vgpu, offset) &= ~LCPLL_CD_SOURCE_FCLK_DONE;
410
411 return 0;
412 }
413
dpy_reg_mmio_read(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)414 static int dpy_reg_mmio_read(struct intel_vgpu *vgpu, unsigned int offset,
415 void *p_data, unsigned int bytes)
416 {
417 switch (offset) {
418 case 0xe651c:
419 case 0xe661c:
420 case 0xe671c:
421 case 0xe681c:
422 vgpu_vreg(vgpu, offset) = 1 << 17;
423 break;
424 case 0xe6c04:
425 vgpu_vreg(vgpu, offset) = 0x3;
426 break;
427 case 0xe6e1c:
428 vgpu_vreg(vgpu, offset) = 0x2f << 16;
429 break;
430 default:
431 return -EINVAL;
432 }
433
434 read_vreg(vgpu, offset, p_data, bytes);
435 return 0;
436 }
437
438 /*
439 * Only PIPE_A is enabled in current vGPU display and PIPE_A is tied to
440 * TRANSCODER_A in HW. DDI/PORT could be PORT_x depends on
441 * setup_virtual_dp_monitor().
442 * emulate_monitor_status_change() set up PLL for PORT_x as the initial enabled
443 * DPLL. Later guest driver may setup a different DPLLx when setting mode.
444 * So the correct sequence to find DP stream clock is:
445 * Check TRANS_DDI_FUNC_CTL on TRANSCODER_A to get PORT_x.
446 * Check correct PLLx for PORT_x to get PLL frequency and DP bitrate.
447 * Then Refresh rate then can be calculated based on follow equations:
448 * Pixel clock = h_total * v_total * refresh_rate
449 * stream clock = Pixel clock
450 * ls_clk = DP bitrate
451 * Link M/N = strm_clk / ls_clk
452 */
453
bdw_vgpu_get_dp_bitrate(struct intel_vgpu * vgpu,enum port port)454 static u32 bdw_vgpu_get_dp_bitrate(struct intel_vgpu *vgpu, enum port port)
455 {
456 u32 dp_br = 0;
457 u32 ddi_pll_sel = vgpu_vreg_t(vgpu, PORT_CLK_SEL(port));
458
459 switch (ddi_pll_sel) {
460 case PORT_CLK_SEL_LCPLL_2700:
461 dp_br = 270000 * 2;
462 break;
463 case PORT_CLK_SEL_LCPLL_1350:
464 dp_br = 135000 * 2;
465 break;
466 case PORT_CLK_SEL_LCPLL_810:
467 dp_br = 81000 * 2;
468 break;
469 case PORT_CLK_SEL_SPLL:
470 {
471 switch (vgpu_vreg_t(vgpu, SPLL_CTL) & SPLL_FREQ_MASK) {
472 case SPLL_FREQ_810MHz:
473 dp_br = 81000 * 2;
474 break;
475 case SPLL_FREQ_1350MHz:
476 dp_br = 135000 * 2;
477 break;
478 case SPLL_FREQ_2700MHz:
479 dp_br = 270000 * 2;
480 break;
481 default:
482 gvt_dbg_dpy("vgpu-%d PORT_%c can't get freq from SPLL 0x%08x\n",
483 vgpu->id, port_name(port), vgpu_vreg_t(vgpu, SPLL_CTL));
484 break;
485 }
486 break;
487 }
488 case PORT_CLK_SEL_WRPLL1:
489 case PORT_CLK_SEL_WRPLL2:
490 {
491 u32 wrpll_ctl;
492 int refclk, n, p, r;
493
494 if (ddi_pll_sel == PORT_CLK_SEL_WRPLL1)
495 wrpll_ctl = vgpu_vreg_t(vgpu, WRPLL_CTL(DPLL_ID_WRPLL1));
496 else
497 wrpll_ctl = vgpu_vreg_t(vgpu, WRPLL_CTL(DPLL_ID_WRPLL2));
498
499 switch (wrpll_ctl & WRPLL_REF_MASK) {
500 case WRPLL_REF_PCH_SSC:
501 refclk = vgpu->gvt->gt->i915->display.dpll.ref_clks.ssc;
502 break;
503 case WRPLL_REF_LCPLL:
504 refclk = 2700000;
505 break;
506 default:
507 gvt_dbg_dpy("vgpu-%d PORT_%c WRPLL can't get refclk 0x%08x\n",
508 vgpu->id, port_name(port), wrpll_ctl);
509 goto out;
510 }
511
512 r = wrpll_ctl & WRPLL_DIVIDER_REF_MASK;
513 p = (wrpll_ctl & WRPLL_DIVIDER_POST_MASK) >> WRPLL_DIVIDER_POST_SHIFT;
514 n = (wrpll_ctl & WRPLL_DIVIDER_FB_MASK) >> WRPLL_DIVIDER_FB_SHIFT;
515
516 dp_br = (refclk * n / 10) / (p * r) * 2;
517 break;
518 }
519 default:
520 gvt_dbg_dpy("vgpu-%d PORT_%c has invalid clock select 0x%08x\n",
521 vgpu->id, port_name(port), vgpu_vreg_t(vgpu, PORT_CLK_SEL(port)));
522 break;
523 }
524
525 out:
526 return dp_br;
527 }
528
bxt_vgpu_get_dp_bitrate(struct intel_vgpu * vgpu,enum port port)529 static u32 bxt_vgpu_get_dp_bitrate(struct intel_vgpu *vgpu, enum port port)
530 {
531 u32 dp_br = 0;
532 int refclk = vgpu->gvt->gt->i915->display.dpll.ref_clks.nssc;
533 enum dpio_phy phy = DPIO_PHY0;
534 enum dpio_channel ch = DPIO_CH0;
535 struct dpll clock = {0};
536 u32 temp;
537
538 /* Port to PHY mapping is fixed, see bxt_ddi_phy_info{} */
539 switch (port) {
540 case PORT_A:
541 phy = DPIO_PHY1;
542 ch = DPIO_CH0;
543 break;
544 case PORT_B:
545 phy = DPIO_PHY0;
546 ch = DPIO_CH0;
547 break;
548 case PORT_C:
549 phy = DPIO_PHY0;
550 ch = DPIO_CH1;
551 break;
552 default:
553 gvt_dbg_dpy("vgpu-%d no PHY for PORT_%c\n", vgpu->id, port_name(port));
554 goto out;
555 }
556
557 temp = vgpu_vreg_t(vgpu, BXT_PORT_PLL_ENABLE(port));
558 if (!(temp & PORT_PLL_ENABLE) || !(temp & PORT_PLL_LOCK)) {
559 gvt_dbg_dpy("vgpu-%d PORT_%c PLL_ENABLE 0x%08x isn't enabled or locked\n",
560 vgpu->id, port_name(port), temp);
561 goto out;
562 }
563
564 clock.m1 = 2;
565 clock.m2 = REG_FIELD_GET(PORT_PLL_M2_INT_MASK,
566 vgpu_vreg_t(vgpu, BXT_PORT_PLL(phy, ch, 0))) << 22;
567 if (vgpu_vreg_t(vgpu, BXT_PORT_PLL(phy, ch, 3)) & PORT_PLL_M2_FRAC_ENABLE)
568 clock.m2 |= REG_FIELD_GET(PORT_PLL_M2_FRAC_MASK,
569 vgpu_vreg_t(vgpu, BXT_PORT_PLL(phy, ch, 2)));
570 clock.n = REG_FIELD_GET(PORT_PLL_N_MASK,
571 vgpu_vreg_t(vgpu, BXT_PORT_PLL(phy, ch, 1)));
572 clock.p1 = REG_FIELD_GET(PORT_PLL_P1_MASK,
573 vgpu_vreg_t(vgpu, BXT_PORT_PLL_EBB_0(phy, ch)));
574 clock.p2 = REG_FIELD_GET(PORT_PLL_P2_MASK,
575 vgpu_vreg_t(vgpu, BXT_PORT_PLL_EBB_0(phy, ch)));
576 clock.m = clock.m1 * clock.m2;
577 clock.p = clock.p1 * clock.p2 * 5;
578
579 if (clock.n == 0 || clock.p == 0) {
580 gvt_dbg_dpy("vgpu-%d PORT_%c PLL has invalid divider\n", vgpu->id, port_name(port));
581 goto out;
582 }
583
584 clock.vco = DIV_ROUND_CLOSEST_ULL(mul_u32_u32(refclk, clock.m), clock.n << 22);
585 clock.dot = DIV_ROUND_CLOSEST(clock.vco, clock.p);
586
587 dp_br = clock.dot;
588
589 out:
590 return dp_br;
591 }
592
skl_vgpu_get_dp_bitrate(struct intel_vgpu * vgpu,enum port port)593 static u32 skl_vgpu_get_dp_bitrate(struct intel_vgpu *vgpu, enum port port)
594 {
595 u32 dp_br = 0;
596 enum intel_dpll_id dpll_id = DPLL_ID_SKL_DPLL0;
597
598 /* Find the enabled DPLL for the DDI/PORT */
599 if (!(vgpu_vreg_t(vgpu, DPLL_CTRL2) & DPLL_CTRL2_DDI_CLK_OFF(port)) &&
600 (vgpu_vreg_t(vgpu, DPLL_CTRL2) & DPLL_CTRL2_DDI_SEL_OVERRIDE(port))) {
601 dpll_id += (vgpu_vreg_t(vgpu, DPLL_CTRL2) &
602 DPLL_CTRL2_DDI_CLK_SEL_MASK(port)) >>
603 DPLL_CTRL2_DDI_CLK_SEL_SHIFT(port);
604 } else {
605 gvt_dbg_dpy("vgpu-%d DPLL for PORT_%c isn't turned on\n",
606 vgpu->id, port_name(port));
607 return dp_br;
608 }
609
610 /* Find PLL output frequency from correct DPLL, and get bir rate */
611 switch ((vgpu_vreg_t(vgpu, DPLL_CTRL1) &
612 DPLL_CTRL1_LINK_RATE_MASK(dpll_id)) >>
613 DPLL_CTRL1_LINK_RATE_SHIFT(dpll_id)) {
614 case DPLL_CTRL1_LINK_RATE_810:
615 dp_br = 81000 * 2;
616 break;
617 case DPLL_CTRL1_LINK_RATE_1080:
618 dp_br = 108000 * 2;
619 break;
620 case DPLL_CTRL1_LINK_RATE_1350:
621 dp_br = 135000 * 2;
622 break;
623 case DPLL_CTRL1_LINK_RATE_1620:
624 dp_br = 162000 * 2;
625 break;
626 case DPLL_CTRL1_LINK_RATE_2160:
627 dp_br = 216000 * 2;
628 break;
629 case DPLL_CTRL1_LINK_RATE_2700:
630 dp_br = 270000 * 2;
631 break;
632 default:
633 dp_br = 0;
634 gvt_dbg_dpy("vgpu-%d PORT_%c fail to get DPLL-%d freq\n",
635 vgpu->id, port_name(port), dpll_id);
636 }
637
638 return dp_br;
639 }
640
vgpu_update_refresh_rate(struct intel_vgpu * vgpu)641 static void vgpu_update_refresh_rate(struct intel_vgpu *vgpu)
642 {
643 struct drm_i915_private *dev_priv = vgpu->gvt->gt->i915;
644 enum port port;
645 u32 dp_br, link_m, link_n, htotal, vtotal;
646
647 /* Find DDI/PORT assigned to TRANSCODER_A, expect B or D */
648 port = (vgpu_vreg_t(vgpu, TRANS_DDI_FUNC_CTL(TRANSCODER_A)) &
649 TRANS_DDI_PORT_MASK) >> TRANS_DDI_PORT_SHIFT;
650 if (port != PORT_B && port != PORT_D) {
651 gvt_dbg_dpy("vgpu-%d unsupported PORT_%c\n", vgpu->id, port_name(port));
652 return;
653 }
654
655 /* Calculate DP bitrate from PLL */
656 if (IS_BROADWELL(dev_priv))
657 dp_br = bdw_vgpu_get_dp_bitrate(vgpu, port);
658 else if (IS_BROXTON(dev_priv))
659 dp_br = bxt_vgpu_get_dp_bitrate(vgpu, port);
660 else
661 dp_br = skl_vgpu_get_dp_bitrate(vgpu, port);
662
663 /* Get DP link symbol clock M/N */
664 link_m = vgpu_vreg_t(vgpu, PIPE_LINK_M1(TRANSCODER_A));
665 link_n = vgpu_vreg_t(vgpu, PIPE_LINK_N1(TRANSCODER_A));
666
667 /* Get H/V total from transcoder timing */
668 htotal = (vgpu_vreg_t(vgpu, HTOTAL(TRANSCODER_A)) >> TRANS_HTOTAL_SHIFT);
669 vtotal = (vgpu_vreg_t(vgpu, VTOTAL(TRANSCODER_A)) >> TRANS_VTOTAL_SHIFT);
670
671 if (dp_br && link_n && htotal && vtotal) {
672 u64 pixel_clk = 0;
673 u32 new_rate = 0;
674 u32 *old_rate = &(intel_vgpu_port(vgpu, vgpu->display.port_num)->vrefresh_k);
675
676 /* Calcuate pixel clock by (ls_clk * M / N) */
677 pixel_clk = div_u64(mul_u32_u32(link_m, dp_br), link_n);
678 pixel_clk *= MSEC_PER_SEC;
679
680 /* Calcuate refresh rate by (pixel_clk / (h_total * v_total)) */
681 new_rate = DIV64_U64_ROUND_CLOSEST(mul_u64_u32_shr(pixel_clk, MSEC_PER_SEC, 0), mul_u32_u32(htotal + 1, vtotal + 1));
682
683 if (*old_rate != new_rate)
684 *old_rate = new_rate;
685
686 gvt_dbg_dpy("vgpu-%d PIPE_%c refresh rate updated to %d\n",
687 vgpu->id, pipe_name(PIPE_A), new_rate);
688 }
689 }
690
pipeconf_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)691 static int pipeconf_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
692 void *p_data, unsigned int bytes)
693 {
694 u32 data;
695
696 write_vreg(vgpu, offset, p_data, bytes);
697 data = vgpu_vreg(vgpu, offset);
698
699 if (data & PIPECONF_ENABLE) {
700 vgpu_vreg(vgpu, offset) |= PIPECONF_STATE_ENABLE;
701 vgpu_update_refresh_rate(vgpu);
702 vgpu_update_vblank_emulation(vgpu, true);
703 } else {
704 vgpu_vreg(vgpu, offset) &= ~PIPECONF_STATE_ENABLE;
705 vgpu_update_vblank_emulation(vgpu, false);
706 }
707 return 0;
708 }
709
710 /* sorted in ascending order */
711 static i915_reg_t force_nonpriv_white_list[] = {
712 _MMIO(0xd80),
713 GEN9_CS_DEBUG_MODE1, //_MMIO(0x20ec)
714 GEN9_CTX_PREEMPT_REG,//_MMIO(0x2248)
715 CL_PRIMITIVES_COUNT, //_MMIO(0x2340)
716 PS_INVOCATION_COUNT, //_MMIO(0x2348)
717 PS_DEPTH_COUNT, //_MMIO(0x2350)
718 GEN8_CS_CHICKEN1,//_MMIO(0x2580)
719 _MMIO(0x2690),
720 _MMIO(0x2694),
721 _MMIO(0x2698),
722 _MMIO(0x2754),
723 _MMIO(0x28a0),
724 _MMIO(0x4de0),
725 _MMIO(0x4de4),
726 _MMIO(0x4dfc),
727 GEN7_COMMON_SLICE_CHICKEN1,//_MMIO(0x7010)
728 _MMIO(0x7014),
729 HDC_CHICKEN0,//_MMIO(0x7300)
730 GEN8_HDC_CHICKEN1,//_MMIO(0x7304)
731 _MMIO(0x7700),
732 _MMIO(0x7704),
733 _MMIO(0x7708),
734 _MMIO(0x770c),
735 _MMIO(0x83a8),
736 _MMIO(0xb110),
737 GEN8_L3SQCREG4,//_MMIO(0xb118)
738 _MMIO(0xe100),
739 _MMIO(0xe18c),
740 _MMIO(0xe48c),
741 _MMIO(0xe5f4),
742 _MMIO(0x64844),
743 };
744
745 /* a simple bsearch */
in_whitelist(u32 reg)746 static inline bool in_whitelist(u32 reg)
747 {
748 int left = 0, right = ARRAY_SIZE(force_nonpriv_white_list);
749 i915_reg_t *array = force_nonpriv_white_list;
750
751 while (left < right) {
752 int mid = (left + right)/2;
753
754 if (reg > array[mid].reg)
755 left = mid + 1;
756 else if (reg < array[mid].reg)
757 right = mid;
758 else
759 return true;
760 }
761 return false;
762 }
763
force_nonpriv_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)764 static int force_nonpriv_write(struct intel_vgpu *vgpu,
765 unsigned int offset, void *p_data, unsigned int bytes)
766 {
767 u32 reg_nonpriv = (*(u32 *)p_data) & REG_GENMASK(25, 2);
768 const struct intel_engine_cs *engine =
769 intel_gvt_render_mmio_to_engine(vgpu->gvt, offset);
770
771 if (bytes != 4 || !IS_ALIGNED(offset, bytes) || !engine) {
772 gvt_err("vgpu(%d) Invalid FORCE_NONPRIV offset %x(%dB)\n",
773 vgpu->id, offset, bytes);
774 return -EINVAL;
775 }
776
777 if (!in_whitelist(reg_nonpriv) &&
778 reg_nonpriv != i915_mmio_reg_offset(RING_NOPID(engine->mmio_base))) {
779 gvt_err("vgpu(%d) Invalid FORCE_NONPRIV write %x at offset %x\n",
780 vgpu->id, reg_nonpriv, offset);
781 } else
782 intel_vgpu_default_mmio_write(vgpu, offset, p_data, bytes);
783
784 return 0;
785 }
786
ddi_buf_ctl_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)787 static int ddi_buf_ctl_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
788 void *p_data, unsigned int bytes)
789 {
790 write_vreg(vgpu, offset, p_data, bytes);
791
792 if (vgpu_vreg(vgpu, offset) & DDI_BUF_CTL_ENABLE) {
793 vgpu_vreg(vgpu, offset) &= ~DDI_BUF_IS_IDLE;
794 } else {
795 vgpu_vreg(vgpu, offset) |= DDI_BUF_IS_IDLE;
796 if (offset == i915_mmio_reg_offset(DDI_BUF_CTL(PORT_E)))
797 vgpu_vreg_t(vgpu, DP_TP_STATUS(PORT_E))
798 &= ~DP_TP_STATUS_AUTOTRAIN_DONE;
799 }
800 return 0;
801 }
802
fdi_rx_iir_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)803 static int fdi_rx_iir_mmio_write(struct intel_vgpu *vgpu,
804 unsigned int offset, void *p_data, unsigned int bytes)
805 {
806 vgpu_vreg(vgpu, offset) &= ~*(u32 *)p_data;
807 return 0;
808 }
809
810 #define FDI_LINK_TRAIN_PATTERN1 0
811 #define FDI_LINK_TRAIN_PATTERN2 1
812
fdi_auto_training_started(struct intel_vgpu * vgpu)813 static int fdi_auto_training_started(struct intel_vgpu *vgpu)
814 {
815 u32 ddi_buf_ctl = vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_E));
816 u32 rx_ctl = vgpu_vreg(vgpu, _FDI_RXA_CTL);
817 u32 tx_ctl = vgpu_vreg_t(vgpu, DP_TP_CTL(PORT_E));
818
819 if ((ddi_buf_ctl & DDI_BUF_CTL_ENABLE) &&
820 (rx_ctl & FDI_RX_ENABLE) &&
821 (rx_ctl & FDI_AUTO_TRAINING) &&
822 (tx_ctl & DP_TP_CTL_ENABLE) &&
823 (tx_ctl & DP_TP_CTL_FDI_AUTOTRAIN))
824 return 1;
825 else
826 return 0;
827 }
828
check_fdi_rx_train_status(struct intel_vgpu * vgpu,enum pipe pipe,unsigned int train_pattern)829 static int check_fdi_rx_train_status(struct intel_vgpu *vgpu,
830 enum pipe pipe, unsigned int train_pattern)
831 {
832 i915_reg_t fdi_rx_imr, fdi_tx_ctl, fdi_rx_ctl;
833 unsigned int fdi_rx_check_bits, fdi_tx_check_bits;
834 unsigned int fdi_rx_train_bits, fdi_tx_train_bits;
835 unsigned int fdi_iir_check_bits;
836
837 fdi_rx_imr = FDI_RX_IMR(pipe);
838 fdi_tx_ctl = FDI_TX_CTL(pipe);
839 fdi_rx_ctl = FDI_RX_CTL(pipe);
840
841 if (train_pattern == FDI_LINK_TRAIN_PATTERN1) {
842 fdi_rx_train_bits = FDI_LINK_TRAIN_PATTERN_1_CPT;
843 fdi_tx_train_bits = FDI_LINK_TRAIN_PATTERN_1;
844 fdi_iir_check_bits = FDI_RX_BIT_LOCK;
845 } else if (train_pattern == FDI_LINK_TRAIN_PATTERN2) {
846 fdi_rx_train_bits = FDI_LINK_TRAIN_PATTERN_2_CPT;
847 fdi_tx_train_bits = FDI_LINK_TRAIN_PATTERN_2;
848 fdi_iir_check_bits = FDI_RX_SYMBOL_LOCK;
849 } else {
850 gvt_vgpu_err("Invalid train pattern %d\n", train_pattern);
851 return -EINVAL;
852 }
853
854 fdi_rx_check_bits = FDI_RX_ENABLE | fdi_rx_train_bits;
855 fdi_tx_check_bits = FDI_TX_ENABLE | fdi_tx_train_bits;
856
857 /* If imr bit has been masked */
858 if (vgpu_vreg_t(vgpu, fdi_rx_imr) & fdi_iir_check_bits)
859 return 0;
860
861 if (((vgpu_vreg_t(vgpu, fdi_tx_ctl) & fdi_tx_check_bits)
862 == fdi_tx_check_bits)
863 && ((vgpu_vreg_t(vgpu, fdi_rx_ctl) & fdi_rx_check_bits)
864 == fdi_rx_check_bits))
865 return 1;
866 else
867 return 0;
868 }
869
870 #define INVALID_INDEX (~0U)
871
calc_index(unsigned int offset,unsigned int start,unsigned int next,unsigned int end,i915_reg_t i915_end)872 static unsigned int calc_index(unsigned int offset, unsigned int start,
873 unsigned int next, unsigned int end, i915_reg_t i915_end)
874 {
875 unsigned int range = next - start;
876
877 if (!end)
878 end = i915_mmio_reg_offset(i915_end);
879 if (offset < start || offset > end)
880 return INVALID_INDEX;
881 offset -= start;
882 return offset / range;
883 }
884
885 #define FDI_RX_CTL_TO_PIPE(offset) \
886 calc_index(offset, _FDI_RXA_CTL, _FDI_RXB_CTL, 0, FDI_RX_CTL(PIPE_C))
887
888 #define FDI_TX_CTL_TO_PIPE(offset) \
889 calc_index(offset, _FDI_TXA_CTL, _FDI_TXB_CTL, 0, FDI_TX_CTL(PIPE_C))
890
891 #define FDI_RX_IMR_TO_PIPE(offset) \
892 calc_index(offset, _FDI_RXA_IMR, _FDI_RXB_IMR, 0, FDI_RX_IMR(PIPE_C))
893
update_fdi_rx_iir_status(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)894 static int update_fdi_rx_iir_status(struct intel_vgpu *vgpu,
895 unsigned int offset, void *p_data, unsigned int bytes)
896 {
897 i915_reg_t fdi_rx_iir;
898 unsigned int index;
899 int ret;
900
901 if (FDI_RX_CTL_TO_PIPE(offset) != INVALID_INDEX)
902 index = FDI_RX_CTL_TO_PIPE(offset);
903 else if (FDI_TX_CTL_TO_PIPE(offset) != INVALID_INDEX)
904 index = FDI_TX_CTL_TO_PIPE(offset);
905 else if (FDI_RX_IMR_TO_PIPE(offset) != INVALID_INDEX)
906 index = FDI_RX_IMR_TO_PIPE(offset);
907 else {
908 gvt_vgpu_err("Unsupported registers %x\n", offset);
909 return -EINVAL;
910 }
911
912 write_vreg(vgpu, offset, p_data, bytes);
913
914 fdi_rx_iir = FDI_RX_IIR(index);
915
916 ret = check_fdi_rx_train_status(vgpu, index, FDI_LINK_TRAIN_PATTERN1);
917 if (ret < 0)
918 return ret;
919 if (ret)
920 vgpu_vreg_t(vgpu, fdi_rx_iir) |= FDI_RX_BIT_LOCK;
921
922 ret = check_fdi_rx_train_status(vgpu, index, FDI_LINK_TRAIN_PATTERN2);
923 if (ret < 0)
924 return ret;
925 if (ret)
926 vgpu_vreg_t(vgpu, fdi_rx_iir) |= FDI_RX_SYMBOL_LOCK;
927
928 if (offset == _FDI_RXA_CTL)
929 if (fdi_auto_training_started(vgpu))
930 vgpu_vreg_t(vgpu, DP_TP_STATUS(PORT_E)) |=
931 DP_TP_STATUS_AUTOTRAIN_DONE;
932 return 0;
933 }
934
935 #define DP_TP_CTL_TO_PORT(offset) \
936 calc_index(offset, _DP_TP_CTL_A, _DP_TP_CTL_B, 0, DP_TP_CTL(PORT_E))
937
dp_tp_ctl_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)938 static int dp_tp_ctl_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
939 void *p_data, unsigned int bytes)
940 {
941 i915_reg_t status_reg;
942 unsigned int index;
943 u32 data;
944
945 write_vreg(vgpu, offset, p_data, bytes);
946
947 index = DP_TP_CTL_TO_PORT(offset);
948 data = (vgpu_vreg(vgpu, offset) & GENMASK(10, 8)) >> 8;
949 if (data == 0x2) {
950 status_reg = DP_TP_STATUS(index);
951 vgpu_vreg_t(vgpu, status_reg) |= (1 << 25);
952 }
953 return 0;
954 }
955
dp_tp_status_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)956 static int dp_tp_status_mmio_write(struct intel_vgpu *vgpu,
957 unsigned int offset, void *p_data, unsigned int bytes)
958 {
959 u32 reg_val;
960 u32 sticky_mask;
961
962 reg_val = *((u32 *)p_data);
963 sticky_mask = GENMASK(27, 26) | (1 << 24);
964
965 vgpu_vreg(vgpu, offset) = (reg_val & ~sticky_mask) |
966 (vgpu_vreg(vgpu, offset) & sticky_mask);
967 vgpu_vreg(vgpu, offset) &= ~(reg_val & sticky_mask);
968 return 0;
969 }
970
pch_adpa_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)971 static int pch_adpa_mmio_write(struct intel_vgpu *vgpu,
972 unsigned int offset, void *p_data, unsigned int bytes)
973 {
974 u32 data;
975
976 write_vreg(vgpu, offset, p_data, bytes);
977 data = vgpu_vreg(vgpu, offset);
978
979 if (data & ADPA_CRT_HOTPLUG_FORCE_TRIGGER)
980 vgpu_vreg(vgpu, offset) &= ~ADPA_CRT_HOTPLUG_FORCE_TRIGGER;
981 return 0;
982 }
983
south_chicken2_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)984 static int south_chicken2_mmio_write(struct intel_vgpu *vgpu,
985 unsigned int offset, void *p_data, unsigned int bytes)
986 {
987 u32 data;
988
989 write_vreg(vgpu, offset, p_data, bytes);
990 data = vgpu_vreg(vgpu, offset);
991
992 if (data & FDI_MPHY_IOSFSB_RESET_CTL)
993 vgpu_vreg(vgpu, offset) |= FDI_MPHY_IOSFSB_RESET_STATUS;
994 else
995 vgpu_vreg(vgpu, offset) &= ~FDI_MPHY_IOSFSB_RESET_STATUS;
996 return 0;
997 }
998
999 #define DSPSURF_TO_PIPE(offset) \
1000 calc_index(offset, _DSPASURF, _DSPBSURF, 0, DSPSURF(PIPE_C))
1001
pri_surf_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1002 static int pri_surf_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
1003 void *p_data, unsigned int bytes)
1004 {
1005 struct drm_i915_private *dev_priv = vgpu->gvt->gt->i915;
1006 u32 pipe = DSPSURF_TO_PIPE(offset);
1007 int event = SKL_FLIP_EVENT(pipe, PLANE_PRIMARY);
1008
1009 write_vreg(vgpu, offset, p_data, bytes);
1010 vgpu_vreg_t(vgpu, DSPSURFLIVE(pipe)) = vgpu_vreg(vgpu, offset);
1011
1012 vgpu_vreg_t(vgpu, PIPE_FLIPCOUNT_G4X(pipe))++;
1013
1014 if (vgpu_vreg_t(vgpu, DSPCNTR(pipe)) & PLANE_CTL_ASYNC_FLIP)
1015 intel_vgpu_trigger_virtual_event(vgpu, event);
1016 else
1017 set_bit(event, vgpu->irq.flip_done_event[pipe]);
1018
1019 return 0;
1020 }
1021
1022 #define SPRSURF_TO_PIPE(offset) \
1023 calc_index(offset, _SPRA_SURF, _SPRB_SURF, 0, SPRSURF(PIPE_C))
1024
spr_surf_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1025 static int spr_surf_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
1026 void *p_data, unsigned int bytes)
1027 {
1028 u32 pipe = SPRSURF_TO_PIPE(offset);
1029 int event = SKL_FLIP_EVENT(pipe, PLANE_SPRITE0);
1030
1031 write_vreg(vgpu, offset, p_data, bytes);
1032 vgpu_vreg_t(vgpu, SPRSURFLIVE(pipe)) = vgpu_vreg(vgpu, offset);
1033
1034 if (vgpu_vreg_t(vgpu, SPRCTL(pipe)) & PLANE_CTL_ASYNC_FLIP)
1035 intel_vgpu_trigger_virtual_event(vgpu, event);
1036 else
1037 set_bit(event, vgpu->irq.flip_done_event[pipe]);
1038
1039 return 0;
1040 }
1041
reg50080_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1042 static int reg50080_mmio_write(struct intel_vgpu *vgpu,
1043 unsigned int offset, void *p_data,
1044 unsigned int bytes)
1045 {
1046 struct drm_i915_private *dev_priv = vgpu->gvt->gt->i915;
1047 enum pipe pipe = REG_50080_TO_PIPE(offset);
1048 enum plane_id plane = REG_50080_TO_PLANE(offset);
1049 int event = SKL_FLIP_EVENT(pipe, plane);
1050
1051 write_vreg(vgpu, offset, p_data, bytes);
1052 if (plane == PLANE_PRIMARY) {
1053 vgpu_vreg_t(vgpu, DSPSURFLIVE(pipe)) = vgpu_vreg(vgpu, offset);
1054 vgpu_vreg_t(vgpu, PIPE_FLIPCOUNT_G4X(pipe))++;
1055 } else {
1056 vgpu_vreg_t(vgpu, SPRSURFLIVE(pipe)) = vgpu_vreg(vgpu, offset);
1057 }
1058
1059 if ((vgpu_vreg(vgpu, offset) & REG50080_FLIP_TYPE_MASK) == REG50080_FLIP_TYPE_ASYNC)
1060 intel_vgpu_trigger_virtual_event(vgpu, event);
1061 else
1062 set_bit(event, vgpu->irq.flip_done_event[pipe]);
1063
1064 return 0;
1065 }
1066
trigger_aux_channel_interrupt(struct intel_vgpu * vgpu,unsigned int reg)1067 static int trigger_aux_channel_interrupt(struct intel_vgpu *vgpu,
1068 unsigned int reg)
1069 {
1070 struct drm_i915_private *dev_priv = vgpu->gvt->gt->i915;
1071 enum intel_gvt_event_type event;
1072
1073 if (reg == i915_mmio_reg_offset(DP_AUX_CH_CTL(AUX_CH_A)))
1074 event = AUX_CHANNEL_A;
1075 else if (reg == _PCH_DPB_AUX_CH_CTL ||
1076 reg == i915_mmio_reg_offset(DP_AUX_CH_CTL(AUX_CH_B)))
1077 event = AUX_CHANNEL_B;
1078 else if (reg == _PCH_DPC_AUX_CH_CTL ||
1079 reg == i915_mmio_reg_offset(DP_AUX_CH_CTL(AUX_CH_C)))
1080 event = AUX_CHANNEL_C;
1081 else if (reg == _PCH_DPD_AUX_CH_CTL ||
1082 reg == i915_mmio_reg_offset(DP_AUX_CH_CTL(AUX_CH_D)))
1083 event = AUX_CHANNEL_D;
1084 else {
1085 drm_WARN_ON(&dev_priv->drm, true);
1086 return -EINVAL;
1087 }
1088
1089 intel_vgpu_trigger_virtual_event(vgpu, event);
1090 return 0;
1091 }
1092
dp_aux_ch_ctl_trans_done(struct intel_vgpu * vgpu,u32 value,unsigned int reg,int len,bool data_valid)1093 static int dp_aux_ch_ctl_trans_done(struct intel_vgpu *vgpu, u32 value,
1094 unsigned int reg, int len, bool data_valid)
1095 {
1096 /* mark transaction done */
1097 value |= DP_AUX_CH_CTL_DONE;
1098 value &= ~DP_AUX_CH_CTL_SEND_BUSY;
1099 value &= ~DP_AUX_CH_CTL_RECEIVE_ERROR;
1100
1101 if (data_valid)
1102 value &= ~DP_AUX_CH_CTL_TIME_OUT_ERROR;
1103 else
1104 value |= DP_AUX_CH_CTL_TIME_OUT_ERROR;
1105
1106 /* message size */
1107 value &= ~(0xf << 20);
1108 value |= (len << 20);
1109 vgpu_vreg(vgpu, reg) = value;
1110
1111 if (value & DP_AUX_CH_CTL_INTERRUPT)
1112 return trigger_aux_channel_interrupt(vgpu, reg);
1113 return 0;
1114 }
1115
dp_aux_ch_ctl_link_training(struct intel_vgpu_dpcd_data * dpcd,u8 t)1116 static void dp_aux_ch_ctl_link_training(struct intel_vgpu_dpcd_data *dpcd,
1117 u8 t)
1118 {
1119 if ((t & DPCD_TRAINING_PATTERN_SET_MASK) == DPCD_TRAINING_PATTERN_1) {
1120 /* training pattern 1 for CR */
1121 /* set LANE0_CR_DONE, LANE1_CR_DONE */
1122 dpcd->data[DPCD_LANE0_1_STATUS] |= DPCD_LANES_CR_DONE;
1123 /* set LANE2_CR_DONE, LANE3_CR_DONE */
1124 dpcd->data[DPCD_LANE2_3_STATUS] |= DPCD_LANES_CR_DONE;
1125 } else if ((t & DPCD_TRAINING_PATTERN_SET_MASK) ==
1126 DPCD_TRAINING_PATTERN_2) {
1127 /* training pattern 2 for EQ */
1128 /* Set CHANNEL_EQ_DONE and SYMBOL_LOCKED for Lane0_1 */
1129 dpcd->data[DPCD_LANE0_1_STATUS] |= DPCD_LANES_EQ_DONE;
1130 dpcd->data[DPCD_LANE0_1_STATUS] |= DPCD_SYMBOL_LOCKED;
1131 /* Set CHANNEL_EQ_DONE and SYMBOL_LOCKED for Lane2_3 */
1132 dpcd->data[DPCD_LANE2_3_STATUS] |= DPCD_LANES_EQ_DONE;
1133 dpcd->data[DPCD_LANE2_3_STATUS] |= DPCD_SYMBOL_LOCKED;
1134 /* set INTERLANE_ALIGN_DONE */
1135 dpcd->data[DPCD_LANE_ALIGN_STATUS_UPDATED] |=
1136 DPCD_INTERLANE_ALIGN_DONE;
1137 } else if ((t & DPCD_TRAINING_PATTERN_SET_MASK) ==
1138 DPCD_LINK_TRAINING_DISABLED) {
1139 /* finish link training */
1140 /* set sink status as synchronized */
1141 dpcd->data[DPCD_SINK_STATUS] = DPCD_SINK_IN_SYNC;
1142 }
1143 }
1144
1145 #define _REG_HSW_DP_AUX_CH_CTL(dp) \
1146 ((dp) ? (_PCH_DPB_AUX_CH_CTL + ((dp)-1)*0x100) : 0x64010)
1147
1148 #define _REG_SKL_DP_AUX_CH_CTL(dp) (0x64010 + (dp) * 0x100)
1149
1150 #define OFFSET_TO_DP_AUX_PORT(offset) (((offset) & 0xF00) >> 8)
1151
1152 #define dpy_is_valid_port(port) \
1153 (((port) >= PORT_A) && ((port) < I915_MAX_PORTS))
1154
dp_aux_ch_ctl_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1155 static int dp_aux_ch_ctl_mmio_write(struct intel_vgpu *vgpu,
1156 unsigned int offset, void *p_data, unsigned int bytes)
1157 {
1158 struct intel_vgpu_display *display = &vgpu->display;
1159 int msg, addr, ctrl, op, len;
1160 int port_index = OFFSET_TO_DP_AUX_PORT(offset);
1161 struct intel_vgpu_dpcd_data *dpcd = NULL;
1162 struct intel_vgpu_port *port = NULL;
1163 u32 data;
1164
1165 if (!dpy_is_valid_port(port_index)) {
1166 gvt_vgpu_err("Unsupported DP port access!\n");
1167 return 0;
1168 }
1169
1170 write_vreg(vgpu, offset, p_data, bytes);
1171 data = vgpu_vreg(vgpu, offset);
1172
1173 if ((GRAPHICS_VER(vgpu->gvt->gt->i915) >= 9)
1174 && offset != _REG_SKL_DP_AUX_CH_CTL(port_index)) {
1175 /* SKL DPB/C/D aux ctl register changed */
1176 return 0;
1177 } else if (IS_BROADWELL(vgpu->gvt->gt->i915) &&
1178 offset != _REG_HSW_DP_AUX_CH_CTL(port_index)) {
1179 /* write to the data registers */
1180 return 0;
1181 }
1182
1183 if (!(data & DP_AUX_CH_CTL_SEND_BUSY)) {
1184 /* just want to clear the sticky bits */
1185 vgpu_vreg(vgpu, offset) = 0;
1186 return 0;
1187 }
1188
1189 port = &display->ports[port_index];
1190 dpcd = port->dpcd;
1191
1192 /* read out message from DATA1 register */
1193 msg = vgpu_vreg(vgpu, offset + 4);
1194 addr = (msg >> 8) & 0xffff;
1195 ctrl = (msg >> 24) & 0xff;
1196 len = msg & 0xff;
1197 op = ctrl >> 4;
1198
1199 if (op == GVT_AUX_NATIVE_WRITE) {
1200 int t;
1201 u8 buf[16];
1202
1203 if ((addr + len + 1) >= DPCD_SIZE) {
1204 /*
1205 * Write request exceeds what we supported,
1206 * DCPD spec: When a Source Device is writing a DPCD
1207 * address not supported by the Sink Device, the Sink
1208 * Device shall reply with AUX NACK and “M” equal to
1209 * zero.
1210 */
1211
1212 /* NAK the write */
1213 vgpu_vreg(vgpu, offset + 4) = AUX_NATIVE_REPLY_NAK;
1214 dp_aux_ch_ctl_trans_done(vgpu, data, offset, 2, true);
1215 return 0;
1216 }
1217
1218 /*
1219 * Write request format: Headr (command + address + size) occupies
1220 * 4 bytes, followed by (len + 1) bytes of data. See details at
1221 * intel_dp_aux_transfer().
1222 */
1223 if ((len + 1 + 4) > AUX_BURST_SIZE) {
1224 gvt_vgpu_err("dp_aux_header: len %d is too large\n", len);
1225 return -EINVAL;
1226 }
1227
1228 /* unpack data from vreg to buf */
1229 for (t = 0; t < 4; t++) {
1230 u32 r = vgpu_vreg(vgpu, offset + 8 + t * 4);
1231
1232 buf[t * 4] = (r >> 24) & 0xff;
1233 buf[t * 4 + 1] = (r >> 16) & 0xff;
1234 buf[t * 4 + 2] = (r >> 8) & 0xff;
1235 buf[t * 4 + 3] = r & 0xff;
1236 }
1237
1238 /* write to virtual DPCD */
1239 if (dpcd && dpcd->data_valid) {
1240 for (t = 0; t <= len; t++) {
1241 int p = addr + t;
1242
1243 dpcd->data[p] = buf[t];
1244 /* check for link training */
1245 if (p == DPCD_TRAINING_PATTERN_SET)
1246 dp_aux_ch_ctl_link_training(dpcd,
1247 buf[t]);
1248 }
1249 }
1250
1251 /* ACK the write */
1252 vgpu_vreg(vgpu, offset + 4) = 0;
1253 dp_aux_ch_ctl_trans_done(vgpu, data, offset, 1,
1254 dpcd && dpcd->data_valid);
1255 return 0;
1256 }
1257
1258 if (op == GVT_AUX_NATIVE_READ) {
1259 int idx, i, ret = 0;
1260
1261 if ((addr + len + 1) >= DPCD_SIZE) {
1262 /*
1263 * read request exceeds what we supported
1264 * DPCD spec: A Sink Device receiving a Native AUX CH
1265 * read request for an unsupported DPCD address must
1266 * reply with an AUX ACK and read data set equal to
1267 * zero instead of replying with AUX NACK.
1268 */
1269
1270 /* ACK the READ*/
1271 vgpu_vreg(vgpu, offset + 4) = 0;
1272 vgpu_vreg(vgpu, offset + 8) = 0;
1273 vgpu_vreg(vgpu, offset + 12) = 0;
1274 vgpu_vreg(vgpu, offset + 16) = 0;
1275 vgpu_vreg(vgpu, offset + 20) = 0;
1276
1277 dp_aux_ch_ctl_trans_done(vgpu, data, offset, len + 2,
1278 true);
1279 return 0;
1280 }
1281
1282 for (idx = 1; idx <= 5; idx++) {
1283 /* clear the data registers */
1284 vgpu_vreg(vgpu, offset + 4 * idx) = 0;
1285 }
1286
1287 /*
1288 * Read reply format: ACK (1 byte) plus (len + 1) bytes of data.
1289 */
1290 if ((len + 2) > AUX_BURST_SIZE) {
1291 gvt_vgpu_err("dp_aux_header: len %d is too large\n", len);
1292 return -EINVAL;
1293 }
1294
1295 /* read from virtual DPCD to vreg */
1296 /* first 4 bytes: [ACK][addr][addr+1][addr+2] */
1297 if (dpcd && dpcd->data_valid) {
1298 for (i = 1; i <= (len + 1); i++) {
1299 int t;
1300
1301 t = dpcd->data[addr + i - 1];
1302 t <<= (24 - 8 * (i % 4));
1303 ret |= t;
1304
1305 if ((i % 4 == 3) || (i == (len + 1))) {
1306 vgpu_vreg(vgpu, offset +
1307 (i / 4 + 1) * 4) = ret;
1308 ret = 0;
1309 }
1310 }
1311 }
1312 dp_aux_ch_ctl_trans_done(vgpu, data, offset, len + 2,
1313 dpcd && dpcd->data_valid);
1314 return 0;
1315 }
1316
1317 /* i2c transaction starts */
1318 intel_gvt_i2c_handle_aux_ch_write(vgpu, port_index, offset, p_data);
1319
1320 if (data & DP_AUX_CH_CTL_INTERRUPT)
1321 trigger_aux_channel_interrupt(vgpu, offset);
1322 return 0;
1323 }
1324
mbctl_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1325 static int mbctl_write(struct intel_vgpu *vgpu, unsigned int offset,
1326 void *p_data, unsigned int bytes)
1327 {
1328 *(u32 *)p_data &= (~GEN6_MBCTL_ENABLE_BOOT_FETCH);
1329 write_vreg(vgpu, offset, p_data, bytes);
1330 return 0;
1331 }
1332
vga_control_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1333 static int vga_control_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
1334 void *p_data, unsigned int bytes)
1335 {
1336 bool vga_disable;
1337
1338 write_vreg(vgpu, offset, p_data, bytes);
1339 vga_disable = vgpu_vreg(vgpu, offset) & VGA_DISP_DISABLE;
1340
1341 gvt_dbg_core("vgpu%d: %s VGA mode\n", vgpu->id,
1342 vga_disable ? "Disable" : "Enable");
1343 return 0;
1344 }
1345
read_virtual_sbi_register(struct intel_vgpu * vgpu,unsigned int sbi_offset)1346 static u32 read_virtual_sbi_register(struct intel_vgpu *vgpu,
1347 unsigned int sbi_offset)
1348 {
1349 struct intel_vgpu_display *display = &vgpu->display;
1350 int num = display->sbi.number;
1351 int i;
1352
1353 for (i = 0; i < num; ++i)
1354 if (display->sbi.registers[i].offset == sbi_offset)
1355 break;
1356
1357 if (i == num)
1358 return 0;
1359
1360 return display->sbi.registers[i].value;
1361 }
1362
write_virtual_sbi_register(struct intel_vgpu * vgpu,unsigned int offset,u32 value)1363 static void write_virtual_sbi_register(struct intel_vgpu *vgpu,
1364 unsigned int offset, u32 value)
1365 {
1366 struct intel_vgpu_display *display = &vgpu->display;
1367 int num = display->sbi.number;
1368 int i;
1369
1370 for (i = 0; i < num; ++i) {
1371 if (display->sbi.registers[i].offset == offset)
1372 break;
1373 }
1374
1375 if (i == num) {
1376 if (num == SBI_REG_MAX) {
1377 gvt_vgpu_err("SBI caching meets maximum limits\n");
1378 return;
1379 }
1380 display->sbi.number++;
1381 }
1382
1383 display->sbi.registers[i].offset = offset;
1384 display->sbi.registers[i].value = value;
1385 }
1386
sbi_data_mmio_read(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1387 static int sbi_data_mmio_read(struct intel_vgpu *vgpu, unsigned int offset,
1388 void *p_data, unsigned int bytes)
1389 {
1390 if (((vgpu_vreg_t(vgpu, SBI_CTL_STAT) & SBI_OPCODE_MASK) >>
1391 SBI_OPCODE_SHIFT) == SBI_CMD_CRRD) {
1392 unsigned int sbi_offset = (vgpu_vreg_t(vgpu, SBI_ADDR) &
1393 SBI_ADDR_OFFSET_MASK) >> SBI_ADDR_OFFSET_SHIFT;
1394 vgpu_vreg(vgpu, offset) = read_virtual_sbi_register(vgpu,
1395 sbi_offset);
1396 }
1397 read_vreg(vgpu, offset, p_data, bytes);
1398 return 0;
1399 }
1400
sbi_ctl_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1401 static int sbi_ctl_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
1402 void *p_data, unsigned int bytes)
1403 {
1404 u32 data;
1405
1406 write_vreg(vgpu, offset, p_data, bytes);
1407 data = vgpu_vreg(vgpu, offset);
1408
1409 data &= ~(SBI_STAT_MASK << SBI_STAT_SHIFT);
1410 data |= SBI_READY;
1411
1412 data &= ~(SBI_RESPONSE_MASK << SBI_RESPONSE_SHIFT);
1413 data |= SBI_RESPONSE_SUCCESS;
1414
1415 vgpu_vreg(vgpu, offset) = data;
1416
1417 if (((vgpu_vreg_t(vgpu, SBI_CTL_STAT) & SBI_OPCODE_MASK) >>
1418 SBI_OPCODE_SHIFT) == SBI_CMD_CRWR) {
1419 unsigned int sbi_offset = (vgpu_vreg_t(vgpu, SBI_ADDR) &
1420 SBI_ADDR_OFFSET_MASK) >> SBI_ADDR_OFFSET_SHIFT;
1421
1422 write_virtual_sbi_register(vgpu, sbi_offset,
1423 vgpu_vreg_t(vgpu, SBI_DATA));
1424 }
1425 return 0;
1426 }
1427
1428 #define _vgtif_reg(x) \
1429 (VGT_PVINFO_PAGE + offsetof(struct vgt_if, x))
1430
pvinfo_mmio_read(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1431 static int pvinfo_mmio_read(struct intel_vgpu *vgpu, unsigned int offset,
1432 void *p_data, unsigned int bytes)
1433 {
1434 bool invalid_read = false;
1435
1436 read_vreg(vgpu, offset, p_data, bytes);
1437
1438 switch (offset) {
1439 case _vgtif_reg(magic) ... _vgtif_reg(vgt_id):
1440 if (offset + bytes > _vgtif_reg(vgt_id) + 4)
1441 invalid_read = true;
1442 break;
1443 case _vgtif_reg(avail_rs.mappable_gmadr.base) ...
1444 _vgtif_reg(avail_rs.fence_num):
1445 if (offset + bytes >
1446 _vgtif_reg(avail_rs.fence_num) + 4)
1447 invalid_read = true;
1448 break;
1449 case 0x78010: /* vgt_caps */
1450 case 0x7881c:
1451 break;
1452 default:
1453 invalid_read = true;
1454 break;
1455 }
1456 if (invalid_read)
1457 gvt_vgpu_err("invalid pvinfo read: [%x:%x] = %x\n",
1458 offset, bytes, *(u32 *)p_data);
1459 vgpu->pv_notified = true;
1460 return 0;
1461 }
1462
handle_g2v_notification(struct intel_vgpu * vgpu,int notification)1463 static int handle_g2v_notification(struct intel_vgpu *vgpu, int notification)
1464 {
1465 enum intel_gvt_gtt_type root_entry_type = GTT_TYPE_PPGTT_ROOT_L4_ENTRY;
1466 struct intel_vgpu_mm *mm;
1467 u64 *pdps;
1468
1469 pdps = (u64 *)&vgpu_vreg64_t(vgpu, vgtif_reg(pdp[0]));
1470
1471 switch (notification) {
1472 case VGT_G2V_PPGTT_L3_PAGE_TABLE_CREATE:
1473 root_entry_type = GTT_TYPE_PPGTT_ROOT_L3_ENTRY;
1474 fallthrough;
1475 case VGT_G2V_PPGTT_L4_PAGE_TABLE_CREATE:
1476 mm = intel_vgpu_get_ppgtt_mm(vgpu, root_entry_type, pdps);
1477 return PTR_ERR_OR_ZERO(mm);
1478 case VGT_G2V_PPGTT_L3_PAGE_TABLE_DESTROY:
1479 case VGT_G2V_PPGTT_L4_PAGE_TABLE_DESTROY:
1480 return intel_vgpu_put_ppgtt_mm(vgpu, pdps);
1481 case VGT_G2V_EXECLIST_CONTEXT_CREATE:
1482 case VGT_G2V_EXECLIST_CONTEXT_DESTROY:
1483 case 1: /* Remove this in guest driver. */
1484 break;
1485 default:
1486 gvt_vgpu_err("Invalid PV notification %d\n", notification);
1487 }
1488 return 0;
1489 }
1490
send_display_ready_uevent(struct intel_vgpu * vgpu,int ready)1491 static int send_display_ready_uevent(struct intel_vgpu *vgpu, int ready)
1492 {
1493 struct kobject *kobj = &vgpu->gvt->gt->i915->drm.primary->kdev->kobj;
1494 char *env[3] = {NULL, NULL, NULL};
1495 char vmid_str[20];
1496 char display_ready_str[20];
1497
1498 snprintf(display_ready_str, 20, "GVT_DISPLAY_READY=%d", ready);
1499 env[0] = display_ready_str;
1500
1501 snprintf(vmid_str, 20, "VMID=%d", vgpu->id);
1502 env[1] = vmid_str;
1503
1504 return kobject_uevent_env(kobj, KOBJ_ADD, env);
1505 }
1506
pvinfo_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1507 static int pvinfo_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
1508 void *p_data, unsigned int bytes)
1509 {
1510 u32 data = *(u32 *)p_data;
1511 bool invalid_write = false;
1512
1513 switch (offset) {
1514 case _vgtif_reg(display_ready):
1515 send_display_ready_uevent(vgpu, data ? 1 : 0);
1516 break;
1517 case _vgtif_reg(g2v_notify):
1518 handle_g2v_notification(vgpu, data);
1519 break;
1520 /* add xhot and yhot to handled list to avoid error log */
1521 case _vgtif_reg(cursor_x_hot):
1522 case _vgtif_reg(cursor_y_hot):
1523 case _vgtif_reg(pdp[0].lo):
1524 case _vgtif_reg(pdp[0].hi):
1525 case _vgtif_reg(pdp[1].lo):
1526 case _vgtif_reg(pdp[1].hi):
1527 case _vgtif_reg(pdp[2].lo):
1528 case _vgtif_reg(pdp[2].hi):
1529 case _vgtif_reg(pdp[3].lo):
1530 case _vgtif_reg(pdp[3].hi):
1531 case _vgtif_reg(execlist_context_descriptor_lo):
1532 case _vgtif_reg(execlist_context_descriptor_hi):
1533 break;
1534 case _vgtif_reg(rsv5[0])..._vgtif_reg(rsv5[3]):
1535 invalid_write = true;
1536 enter_failsafe_mode(vgpu, GVT_FAILSAFE_INSUFFICIENT_RESOURCE);
1537 break;
1538 default:
1539 invalid_write = true;
1540 gvt_vgpu_err("invalid pvinfo write offset %x bytes %x data %x\n",
1541 offset, bytes, data);
1542 break;
1543 }
1544
1545 if (!invalid_write)
1546 write_vreg(vgpu, offset, p_data, bytes);
1547
1548 return 0;
1549 }
1550
pf_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1551 static int pf_write(struct intel_vgpu *vgpu,
1552 unsigned int offset, void *p_data, unsigned int bytes)
1553 {
1554 struct drm_i915_private *i915 = vgpu->gvt->gt->i915;
1555 u32 val = *(u32 *)p_data;
1556
1557 if ((offset == _PS_1A_CTRL || offset == _PS_2A_CTRL ||
1558 offset == _PS_1B_CTRL || offset == _PS_2B_CTRL ||
1559 offset == _PS_1C_CTRL) && (val & PS_PLANE_SEL_MASK) != 0) {
1560 drm_WARN_ONCE(&i915->drm, true,
1561 "VM(%d): guest is trying to scaling a plane\n",
1562 vgpu->id);
1563 return 0;
1564 }
1565
1566 return intel_vgpu_default_mmio_write(vgpu, offset, p_data, bytes);
1567 }
1568
power_well_ctl_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1569 static int power_well_ctl_mmio_write(struct intel_vgpu *vgpu,
1570 unsigned int offset, void *p_data, unsigned int bytes)
1571 {
1572 write_vreg(vgpu, offset, p_data, bytes);
1573
1574 if (vgpu_vreg(vgpu, offset) &
1575 HSW_PWR_WELL_CTL_REQ(HSW_PW_CTL_IDX_GLOBAL))
1576 vgpu_vreg(vgpu, offset) |=
1577 HSW_PWR_WELL_CTL_STATE(HSW_PW_CTL_IDX_GLOBAL);
1578 else
1579 vgpu_vreg(vgpu, offset) &=
1580 ~HSW_PWR_WELL_CTL_STATE(HSW_PW_CTL_IDX_GLOBAL);
1581 return 0;
1582 }
1583
gen9_dbuf_ctl_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1584 static int gen9_dbuf_ctl_mmio_write(struct intel_vgpu *vgpu,
1585 unsigned int offset, void *p_data, unsigned int bytes)
1586 {
1587 write_vreg(vgpu, offset, p_data, bytes);
1588
1589 if (vgpu_vreg(vgpu, offset) & DBUF_POWER_REQUEST)
1590 vgpu_vreg(vgpu, offset) |= DBUF_POWER_STATE;
1591 else
1592 vgpu_vreg(vgpu, offset) &= ~DBUF_POWER_STATE;
1593
1594 return 0;
1595 }
1596
fpga_dbg_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1597 static int fpga_dbg_mmio_write(struct intel_vgpu *vgpu,
1598 unsigned int offset, void *p_data, unsigned int bytes)
1599 {
1600 write_vreg(vgpu, offset, p_data, bytes);
1601
1602 if (vgpu_vreg(vgpu, offset) & FPGA_DBG_RM_NOCLAIM)
1603 vgpu_vreg(vgpu, offset) &= ~FPGA_DBG_RM_NOCLAIM;
1604 return 0;
1605 }
1606
dma_ctrl_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1607 static int dma_ctrl_write(struct intel_vgpu *vgpu, unsigned int offset,
1608 void *p_data, unsigned int bytes)
1609 {
1610 struct drm_i915_private *i915 = vgpu->gvt->gt->i915;
1611 u32 mode;
1612
1613 write_vreg(vgpu, offset, p_data, bytes);
1614 mode = vgpu_vreg(vgpu, offset);
1615
1616 if (GFX_MODE_BIT_SET_IN_MASK(mode, START_DMA)) {
1617 drm_WARN_ONCE(&i915->drm, 1,
1618 "VM(%d): iGVT-g doesn't support GuC\n",
1619 vgpu->id);
1620 return 0;
1621 }
1622
1623 return 0;
1624 }
1625
gen9_trtte_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1626 static int gen9_trtte_write(struct intel_vgpu *vgpu, unsigned int offset,
1627 void *p_data, unsigned int bytes)
1628 {
1629 struct drm_i915_private *i915 = vgpu->gvt->gt->i915;
1630 u32 trtte = *(u32 *)p_data;
1631
1632 if ((trtte & 1) && (trtte & (1 << 1)) == 0) {
1633 drm_WARN(&i915->drm, 1,
1634 "VM(%d): Use physical address for TRTT!\n",
1635 vgpu->id);
1636 return -EINVAL;
1637 }
1638 write_vreg(vgpu, offset, p_data, bytes);
1639
1640 return 0;
1641 }
1642
gen9_trtt_chicken_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1643 static int gen9_trtt_chicken_write(struct intel_vgpu *vgpu, unsigned int offset,
1644 void *p_data, unsigned int bytes)
1645 {
1646 write_vreg(vgpu, offset, p_data, bytes);
1647 return 0;
1648 }
1649
dpll_status_read(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1650 static int dpll_status_read(struct intel_vgpu *vgpu, unsigned int offset,
1651 void *p_data, unsigned int bytes)
1652 {
1653 u32 v = 0;
1654
1655 if (vgpu_vreg(vgpu, 0x46010) & (1 << 31))
1656 v |= (1 << 0);
1657
1658 if (vgpu_vreg(vgpu, 0x46014) & (1 << 31))
1659 v |= (1 << 8);
1660
1661 if (vgpu_vreg(vgpu, 0x46040) & (1 << 31))
1662 v |= (1 << 16);
1663
1664 if (vgpu_vreg(vgpu, 0x46060) & (1 << 31))
1665 v |= (1 << 24);
1666
1667 vgpu_vreg(vgpu, offset) = v;
1668
1669 return intel_vgpu_default_mmio_read(vgpu, offset, p_data, bytes);
1670 }
1671
mailbox_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1672 static int mailbox_write(struct intel_vgpu *vgpu, unsigned int offset,
1673 void *p_data, unsigned int bytes)
1674 {
1675 u32 value = *(u32 *)p_data;
1676 u32 cmd = value & 0xff;
1677 u32 *data0 = &vgpu_vreg_t(vgpu, GEN6_PCODE_DATA);
1678
1679 switch (cmd) {
1680 case GEN9_PCODE_READ_MEM_LATENCY:
1681 if (IS_SKYLAKE(vgpu->gvt->gt->i915) ||
1682 IS_KABYLAKE(vgpu->gvt->gt->i915) ||
1683 IS_COFFEELAKE(vgpu->gvt->gt->i915) ||
1684 IS_COMETLAKE(vgpu->gvt->gt->i915)) {
1685 /**
1686 * "Read memory latency" command on gen9.
1687 * Below memory latency values are read
1688 * from skylake platform.
1689 */
1690 if (!*data0)
1691 *data0 = 0x1e1a1100;
1692 else
1693 *data0 = 0x61514b3d;
1694 } else if (IS_BROXTON(vgpu->gvt->gt->i915)) {
1695 /**
1696 * "Read memory latency" command on gen9.
1697 * Below memory latency values are read
1698 * from Broxton MRB.
1699 */
1700 if (!*data0)
1701 *data0 = 0x16080707;
1702 else
1703 *data0 = 0x16161616;
1704 }
1705 break;
1706 case SKL_PCODE_CDCLK_CONTROL:
1707 if (IS_SKYLAKE(vgpu->gvt->gt->i915) ||
1708 IS_KABYLAKE(vgpu->gvt->gt->i915) ||
1709 IS_COFFEELAKE(vgpu->gvt->gt->i915) ||
1710 IS_COMETLAKE(vgpu->gvt->gt->i915))
1711 *data0 = SKL_CDCLK_READY_FOR_CHANGE;
1712 break;
1713 case GEN6_PCODE_READ_RC6VIDS:
1714 *data0 |= 0x1;
1715 break;
1716 }
1717
1718 gvt_dbg_core("VM(%d) write %x to mailbox, return data0 %x\n",
1719 vgpu->id, value, *data0);
1720 /**
1721 * PCODE_READY clear means ready for pcode read/write,
1722 * PCODE_ERROR_MASK clear means no error happened. In GVT-g we
1723 * always emulate as pcode read/write success and ready for access
1724 * anytime, since we don't touch real physical registers here.
1725 */
1726 value &= ~(GEN6_PCODE_READY | GEN6_PCODE_ERROR_MASK);
1727 return intel_vgpu_default_mmio_write(vgpu, offset, &value, bytes);
1728 }
1729
hws_pga_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1730 static int hws_pga_write(struct intel_vgpu *vgpu, unsigned int offset,
1731 void *p_data, unsigned int bytes)
1732 {
1733 u32 value = *(u32 *)p_data;
1734 const struct intel_engine_cs *engine =
1735 intel_gvt_render_mmio_to_engine(vgpu->gvt, offset);
1736
1737 if (value != 0 &&
1738 !intel_gvt_ggtt_validate_range(vgpu, value, I915_GTT_PAGE_SIZE)) {
1739 gvt_vgpu_err("write invalid HWSP address, reg:0x%x, value:0x%x\n",
1740 offset, value);
1741 return -EINVAL;
1742 }
1743
1744 /*
1745 * Need to emulate all the HWSP register write to ensure host can
1746 * update the VM CSB status correctly. Here listed registers can
1747 * support BDW, SKL or other platforms with same HWSP registers.
1748 */
1749 if (unlikely(!engine)) {
1750 gvt_vgpu_err("access unknown hardware status page register:0x%x\n",
1751 offset);
1752 return -EINVAL;
1753 }
1754 vgpu->hws_pga[engine->id] = value;
1755 gvt_dbg_mmio("VM(%d) write: 0x%x to HWSP: 0x%x\n",
1756 vgpu->id, value, offset);
1757
1758 return intel_vgpu_default_mmio_write(vgpu, offset, &value, bytes);
1759 }
1760
skl_power_well_ctl_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1761 static int skl_power_well_ctl_write(struct intel_vgpu *vgpu,
1762 unsigned int offset, void *p_data, unsigned int bytes)
1763 {
1764 u32 v = *(u32 *)p_data;
1765
1766 if (IS_BROXTON(vgpu->gvt->gt->i915))
1767 v &= (1 << 31) | (1 << 29);
1768 else
1769 v &= (1 << 31) | (1 << 29) | (1 << 9) |
1770 (1 << 7) | (1 << 5) | (1 << 3) | (1 << 1);
1771 v |= (v >> 1);
1772
1773 return intel_vgpu_default_mmio_write(vgpu, offset, &v, bytes);
1774 }
1775
skl_lcpll_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1776 static int skl_lcpll_write(struct intel_vgpu *vgpu, unsigned int offset,
1777 void *p_data, unsigned int bytes)
1778 {
1779 u32 v = *(u32 *)p_data;
1780
1781 /* other bits are MBZ. */
1782 v &= (1 << 31) | (1 << 30);
1783 v & (1 << 31) ? (v |= (1 << 30)) : (v &= ~(1 << 30));
1784
1785 vgpu_vreg(vgpu, offset) = v;
1786
1787 return 0;
1788 }
1789
bxt_de_pll_enable_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1790 static int bxt_de_pll_enable_write(struct intel_vgpu *vgpu,
1791 unsigned int offset, void *p_data, unsigned int bytes)
1792 {
1793 u32 v = *(u32 *)p_data;
1794
1795 if (v & BXT_DE_PLL_PLL_ENABLE)
1796 v |= BXT_DE_PLL_LOCK;
1797
1798 vgpu_vreg(vgpu, offset) = v;
1799
1800 return 0;
1801 }
1802
bxt_port_pll_enable_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1803 static int bxt_port_pll_enable_write(struct intel_vgpu *vgpu,
1804 unsigned int offset, void *p_data, unsigned int bytes)
1805 {
1806 u32 v = *(u32 *)p_data;
1807
1808 if (v & PORT_PLL_ENABLE)
1809 v |= PORT_PLL_LOCK;
1810
1811 vgpu_vreg(vgpu, offset) = v;
1812
1813 return 0;
1814 }
1815
bxt_phy_ctl_family_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1816 static int bxt_phy_ctl_family_write(struct intel_vgpu *vgpu,
1817 unsigned int offset, void *p_data, unsigned int bytes)
1818 {
1819 u32 v = *(u32 *)p_data;
1820 u32 data = v & COMMON_RESET_DIS ? BXT_PHY_LANE_ENABLED : 0;
1821
1822 switch (offset) {
1823 case _PHY_CTL_FAMILY_EDP:
1824 vgpu_vreg(vgpu, _BXT_PHY_CTL_DDI_A) = data;
1825 break;
1826 case _PHY_CTL_FAMILY_DDI:
1827 vgpu_vreg(vgpu, _BXT_PHY_CTL_DDI_B) = data;
1828 vgpu_vreg(vgpu, _BXT_PHY_CTL_DDI_C) = data;
1829 break;
1830 }
1831
1832 vgpu_vreg(vgpu, offset) = v;
1833
1834 return 0;
1835 }
1836
bxt_port_tx_dw3_read(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1837 static int bxt_port_tx_dw3_read(struct intel_vgpu *vgpu,
1838 unsigned int offset, void *p_data, unsigned int bytes)
1839 {
1840 u32 v = vgpu_vreg(vgpu, offset);
1841
1842 v &= ~UNIQUE_TRANGE_EN_METHOD;
1843
1844 vgpu_vreg(vgpu, offset) = v;
1845
1846 return intel_vgpu_default_mmio_read(vgpu, offset, p_data, bytes);
1847 }
1848
bxt_pcs_dw12_grp_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1849 static int bxt_pcs_dw12_grp_write(struct intel_vgpu *vgpu,
1850 unsigned int offset, void *p_data, unsigned int bytes)
1851 {
1852 u32 v = *(u32 *)p_data;
1853
1854 if (offset == _PORT_PCS_DW12_GRP_A || offset == _PORT_PCS_DW12_GRP_B) {
1855 vgpu_vreg(vgpu, offset - 0x600) = v;
1856 vgpu_vreg(vgpu, offset - 0x800) = v;
1857 } else {
1858 vgpu_vreg(vgpu, offset - 0x400) = v;
1859 vgpu_vreg(vgpu, offset - 0x600) = v;
1860 }
1861
1862 vgpu_vreg(vgpu, offset) = v;
1863
1864 return 0;
1865 }
1866
bxt_gt_disp_pwron_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1867 static int bxt_gt_disp_pwron_write(struct intel_vgpu *vgpu,
1868 unsigned int offset, void *p_data, unsigned int bytes)
1869 {
1870 u32 v = *(u32 *)p_data;
1871
1872 if (v & BIT(0)) {
1873 vgpu_vreg_t(vgpu, BXT_PORT_CL1CM_DW0(DPIO_PHY0)) &=
1874 ~PHY_RESERVED;
1875 vgpu_vreg_t(vgpu, BXT_PORT_CL1CM_DW0(DPIO_PHY0)) |=
1876 PHY_POWER_GOOD;
1877 }
1878
1879 if (v & BIT(1)) {
1880 vgpu_vreg_t(vgpu, BXT_PORT_CL1CM_DW0(DPIO_PHY1)) &=
1881 ~PHY_RESERVED;
1882 vgpu_vreg_t(vgpu, BXT_PORT_CL1CM_DW0(DPIO_PHY1)) |=
1883 PHY_POWER_GOOD;
1884 }
1885
1886
1887 vgpu_vreg(vgpu, offset) = v;
1888
1889 return 0;
1890 }
1891
edp_psr_imr_iir_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1892 static int edp_psr_imr_iir_write(struct intel_vgpu *vgpu,
1893 unsigned int offset, void *p_data, unsigned int bytes)
1894 {
1895 vgpu_vreg(vgpu, offset) = 0;
1896 return 0;
1897 }
1898
1899 /*
1900 * FixMe:
1901 * If guest fills non-priv batch buffer on ApolloLake/Broxton as Mesa i965 did:
1902 * 717e7539124d (i965: Use a WC map and memcpy for the batch instead of pwrite.)
1903 * Due to the missing flush of bb filled by VM vCPU, host GPU hangs on executing
1904 * these MI_BATCH_BUFFER.
1905 * Temporarily workaround this by setting SNOOP bit for PAT3 used by PPGTT
1906 * PML4 PTE: PAT(0) PCD(1) PWT(1).
1907 * The performance is still expected to be low, will need further improvement.
1908 */
bxt_ppat_low_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1909 static int bxt_ppat_low_write(struct intel_vgpu *vgpu, unsigned int offset,
1910 void *p_data, unsigned int bytes)
1911 {
1912 u64 pat =
1913 GEN8_PPAT(0, CHV_PPAT_SNOOP) |
1914 GEN8_PPAT(1, 0) |
1915 GEN8_PPAT(2, 0) |
1916 GEN8_PPAT(3, CHV_PPAT_SNOOP) |
1917 GEN8_PPAT(4, CHV_PPAT_SNOOP) |
1918 GEN8_PPAT(5, CHV_PPAT_SNOOP) |
1919 GEN8_PPAT(6, CHV_PPAT_SNOOP) |
1920 GEN8_PPAT(7, CHV_PPAT_SNOOP);
1921
1922 vgpu_vreg(vgpu, offset) = lower_32_bits(pat);
1923
1924 return 0;
1925 }
1926
guc_status_read(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1927 static int guc_status_read(struct intel_vgpu *vgpu,
1928 unsigned int offset, void *p_data,
1929 unsigned int bytes)
1930 {
1931 /* keep MIA_IN_RESET before clearing */
1932 read_vreg(vgpu, offset, p_data, bytes);
1933 vgpu_vreg(vgpu, offset) &= ~GS_MIA_IN_RESET;
1934 return 0;
1935 }
1936
mmio_read_from_hw(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1937 static int mmio_read_from_hw(struct intel_vgpu *vgpu,
1938 unsigned int offset, void *p_data, unsigned int bytes)
1939 {
1940 struct intel_gvt *gvt = vgpu->gvt;
1941 const struct intel_engine_cs *engine =
1942 intel_gvt_render_mmio_to_engine(gvt, offset);
1943
1944 /**
1945 * Read HW reg in following case
1946 * a. the offset isn't a ring mmio
1947 * b. the offset's ring is running on hw.
1948 * c. the offset is ring time stamp mmio
1949 */
1950
1951 if (!engine ||
1952 vgpu == gvt->scheduler.engine_owner[engine->id] ||
1953 offset == i915_mmio_reg_offset(RING_TIMESTAMP(engine->mmio_base)) ||
1954 offset == i915_mmio_reg_offset(RING_TIMESTAMP_UDW(engine->mmio_base))) {
1955 mmio_hw_access_pre(gvt->gt);
1956 vgpu_vreg(vgpu, offset) =
1957 intel_uncore_read(gvt->gt->uncore, _MMIO(offset));
1958 mmio_hw_access_post(gvt->gt);
1959 }
1960
1961 return intel_vgpu_default_mmio_read(vgpu, offset, p_data, bytes);
1962 }
1963
elsp_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)1964 static int elsp_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
1965 void *p_data, unsigned int bytes)
1966 {
1967 struct drm_i915_private *i915 = vgpu->gvt->gt->i915;
1968 const struct intel_engine_cs *engine = intel_gvt_render_mmio_to_engine(vgpu->gvt, offset);
1969 struct intel_vgpu_execlist *execlist;
1970 u32 data = *(u32 *)p_data;
1971 int ret = 0;
1972
1973 if (drm_WARN_ON(&i915->drm, !engine))
1974 return -EINVAL;
1975
1976 /*
1977 * Due to d3_entered is used to indicate skipping PPGTT invalidation on
1978 * vGPU reset, it's set on D0->D3 on PCI config write, and cleared after
1979 * vGPU reset if in resuming.
1980 * In S0ix exit, the device power state also transite from D3 to D0 as
1981 * S3 resume, but no vGPU reset (triggered by QEMU devic model). After
1982 * S0ix exit, all engines continue to work. However the d3_entered
1983 * remains set which will break next vGPU reset logic (miss the expected
1984 * PPGTT invalidation).
1985 * Engines can only work in D0. Thus the 1st elsp write gives GVT a
1986 * chance to clear d3_entered.
1987 */
1988 if (vgpu->d3_entered)
1989 vgpu->d3_entered = false;
1990
1991 execlist = &vgpu->submission.execlist[engine->id];
1992
1993 execlist->elsp_dwords.data[3 - execlist->elsp_dwords.index] = data;
1994 if (execlist->elsp_dwords.index == 3) {
1995 ret = intel_vgpu_submit_execlist(vgpu, engine);
1996 if(ret)
1997 gvt_vgpu_err("fail submit workload on ring %s\n",
1998 engine->name);
1999 }
2000
2001 ++execlist->elsp_dwords.index;
2002 execlist->elsp_dwords.index &= 0x3;
2003 return ret;
2004 }
2005
ring_mode_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)2006 static int ring_mode_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
2007 void *p_data, unsigned int bytes)
2008 {
2009 u32 data = *(u32 *)p_data;
2010 const struct intel_engine_cs *engine =
2011 intel_gvt_render_mmio_to_engine(vgpu->gvt, offset);
2012 bool enable_execlist;
2013 int ret;
2014
2015 (*(u32 *)p_data) &= ~_MASKED_BIT_ENABLE(1);
2016 if (IS_COFFEELAKE(vgpu->gvt->gt->i915) ||
2017 IS_COMETLAKE(vgpu->gvt->gt->i915))
2018 (*(u32 *)p_data) &= ~_MASKED_BIT_ENABLE(2);
2019 write_vreg(vgpu, offset, p_data, bytes);
2020
2021 if (IS_MASKED_BITS_ENABLED(data, 1)) {
2022 enter_failsafe_mode(vgpu, GVT_FAILSAFE_UNSUPPORTED_GUEST);
2023 return 0;
2024 }
2025
2026 if ((IS_COFFEELAKE(vgpu->gvt->gt->i915) ||
2027 IS_COMETLAKE(vgpu->gvt->gt->i915)) &&
2028 IS_MASKED_BITS_ENABLED(data, 2)) {
2029 enter_failsafe_mode(vgpu, GVT_FAILSAFE_UNSUPPORTED_GUEST);
2030 return 0;
2031 }
2032
2033 /* when PPGTT mode enabled, we will check if guest has called
2034 * pvinfo, if not, we will treat this guest as non-gvtg-aware
2035 * guest, and stop emulating its cfg space, mmio, gtt, etc.
2036 */
2037 if ((IS_MASKED_BITS_ENABLED(data, GFX_PPGTT_ENABLE) ||
2038 IS_MASKED_BITS_ENABLED(data, GFX_RUN_LIST_ENABLE)) &&
2039 !vgpu->pv_notified) {
2040 enter_failsafe_mode(vgpu, GVT_FAILSAFE_UNSUPPORTED_GUEST);
2041 return 0;
2042 }
2043 if (IS_MASKED_BITS_ENABLED(data, GFX_RUN_LIST_ENABLE) ||
2044 IS_MASKED_BITS_DISABLED(data, GFX_RUN_LIST_ENABLE)) {
2045 enable_execlist = !!(data & GFX_RUN_LIST_ENABLE);
2046
2047 gvt_dbg_core("EXECLIST %s on ring %s\n",
2048 (enable_execlist ? "enabling" : "disabling"),
2049 engine->name);
2050
2051 if (!enable_execlist)
2052 return 0;
2053
2054 ret = intel_vgpu_select_submission_ops(vgpu,
2055 engine->mask,
2056 INTEL_VGPU_EXECLIST_SUBMISSION);
2057 if (ret)
2058 return ret;
2059
2060 intel_vgpu_start_schedule(vgpu);
2061 }
2062 return 0;
2063 }
2064
gvt_reg_tlb_control_handler(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)2065 static int gvt_reg_tlb_control_handler(struct intel_vgpu *vgpu,
2066 unsigned int offset, void *p_data, unsigned int bytes)
2067 {
2068 unsigned int id = 0;
2069
2070 write_vreg(vgpu, offset, p_data, bytes);
2071 vgpu_vreg(vgpu, offset) = 0;
2072
2073 switch (offset) {
2074 case 0x4260:
2075 id = RCS0;
2076 break;
2077 case 0x4264:
2078 id = VCS0;
2079 break;
2080 case 0x4268:
2081 id = VCS1;
2082 break;
2083 case 0x426c:
2084 id = BCS0;
2085 break;
2086 case 0x4270:
2087 id = VECS0;
2088 break;
2089 default:
2090 return -EINVAL;
2091 }
2092 set_bit(id, (void *)vgpu->submission.tlb_handle_pending);
2093
2094 return 0;
2095 }
2096
ring_reset_ctl_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)2097 static int ring_reset_ctl_write(struct intel_vgpu *vgpu,
2098 unsigned int offset, void *p_data, unsigned int bytes)
2099 {
2100 u32 data;
2101
2102 write_vreg(vgpu, offset, p_data, bytes);
2103 data = vgpu_vreg(vgpu, offset);
2104
2105 if (IS_MASKED_BITS_ENABLED(data, RESET_CTL_REQUEST_RESET))
2106 data |= RESET_CTL_READY_TO_RESET;
2107 else if (data & _MASKED_BIT_DISABLE(RESET_CTL_REQUEST_RESET))
2108 data &= ~RESET_CTL_READY_TO_RESET;
2109
2110 vgpu_vreg(vgpu, offset) = data;
2111 return 0;
2112 }
2113
csfe_chicken1_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)2114 static int csfe_chicken1_mmio_write(struct intel_vgpu *vgpu,
2115 unsigned int offset, void *p_data,
2116 unsigned int bytes)
2117 {
2118 u32 data = *(u32 *)p_data;
2119
2120 (*(u32 *)p_data) &= ~_MASKED_BIT_ENABLE(0x18);
2121 write_vreg(vgpu, offset, p_data, bytes);
2122
2123 if (IS_MASKED_BITS_ENABLED(data, 0x10) ||
2124 IS_MASKED_BITS_ENABLED(data, 0x8))
2125 enter_failsafe_mode(vgpu, GVT_FAILSAFE_UNSUPPORTED_GUEST);
2126
2127 return 0;
2128 }
2129
2130 #define MMIO_F(reg, s, f, am, rm, d, r, w) do { \
2131 ret = setup_mmio_info(gvt, i915_mmio_reg_offset(reg), \
2132 s, f, am, rm, d, r, w); \
2133 if (ret) \
2134 return ret; \
2135 } while (0)
2136
2137 #define MMIO_DH(reg, d, r, w) \
2138 MMIO_F(reg, 4, 0, 0, 0, d, r, w)
2139
2140 #define MMIO_DFH(reg, d, f, r, w) \
2141 MMIO_F(reg, 4, f, 0, 0, d, r, w)
2142
2143 #define MMIO_GM(reg, d, r, w) \
2144 MMIO_F(reg, 4, F_GMADR, 0xFFFFF000, 0, d, r, w)
2145
2146 #define MMIO_GM_RDR(reg, d, r, w) \
2147 MMIO_F(reg, 4, F_GMADR | F_CMD_ACCESS, 0xFFFFF000, 0, d, r, w)
2148
2149 #define MMIO_RO(reg, d, f, rm, r, w) \
2150 MMIO_F(reg, 4, F_RO | f, 0, rm, d, r, w)
2151
2152 #define MMIO_RING_F(prefix, s, f, am, rm, d, r, w) do { \
2153 MMIO_F(prefix(RENDER_RING_BASE), s, f, am, rm, d, r, w); \
2154 MMIO_F(prefix(BLT_RING_BASE), s, f, am, rm, d, r, w); \
2155 MMIO_F(prefix(GEN6_BSD_RING_BASE), s, f, am, rm, d, r, w); \
2156 MMIO_F(prefix(VEBOX_RING_BASE), s, f, am, rm, d, r, w); \
2157 if (HAS_ENGINE(gvt->gt, VCS1)) \
2158 MMIO_F(prefix(GEN8_BSD2_RING_BASE), s, f, am, rm, d, r, w); \
2159 } while (0)
2160
2161 #define MMIO_RING_DFH(prefix, d, f, r, w) \
2162 MMIO_RING_F(prefix, 4, f, 0, 0, d, r, w)
2163
2164 #define MMIO_RING_GM(prefix, d, r, w) \
2165 MMIO_RING_F(prefix, 4, F_GMADR, 0xFFFF0000, 0, d, r, w)
2166
2167 #define MMIO_RING_GM_RDR(prefix, d, r, w) \
2168 MMIO_RING_F(prefix, 4, F_GMADR | F_CMD_ACCESS, 0xFFFF0000, 0, d, r, w)
2169
2170 #define MMIO_RING_RO(prefix, d, f, rm, r, w) \
2171 MMIO_RING_F(prefix, 4, F_RO | f, 0, rm, d, r, w)
2172
init_generic_mmio_info(struct intel_gvt * gvt)2173 static int init_generic_mmio_info(struct intel_gvt *gvt)
2174 {
2175 struct drm_i915_private *dev_priv = gvt->gt->i915;
2176 int ret;
2177
2178 MMIO_RING_DFH(RING_IMR, D_ALL, 0, NULL,
2179 intel_vgpu_reg_imr_handler);
2180
2181 MMIO_DFH(SDEIMR, D_ALL, 0, NULL, intel_vgpu_reg_imr_handler);
2182 MMIO_DFH(SDEIER, D_ALL, 0, NULL, intel_vgpu_reg_ier_handler);
2183 MMIO_DFH(SDEIIR, D_ALL, 0, NULL, intel_vgpu_reg_iir_handler);
2184
2185 MMIO_RING_DFH(RING_HWSTAM, D_ALL, 0, NULL, NULL);
2186
2187
2188 MMIO_DH(GEN8_GAMW_ECO_DEV_RW_IA, D_BDW_PLUS, NULL,
2189 gamw_echo_dev_rw_ia_write);
2190
2191 MMIO_GM_RDR(BSD_HWS_PGA_GEN7, D_ALL, NULL, NULL);
2192 MMIO_GM_RDR(BLT_HWS_PGA_GEN7, D_ALL, NULL, NULL);
2193 MMIO_GM_RDR(VEBOX_HWS_PGA_GEN7, D_ALL, NULL, NULL);
2194
2195 #define RING_REG(base) _MMIO((base) + 0x28)
2196 MMIO_RING_DFH(RING_REG, D_ALL, F_CMD_ACCESS, NULL, NULL);
2197 #undef RING_REG
2198
2199 #define RING_REG(base) _MMIO((base) + 0x134)
2200 MMIO_RING_DFH(RING_REG, D_ALL, F_CMD_ACCESS, NULL, NULL);
2201 #undef RING_REG
2202
2203 #define RING_REG(base) _MMIO((base) + 0x6c)
2204 MMIO_RING_DFH(RING_REG, D_ALL, 0, mmio_read_from_hw, NULL);
2205 #undef RING_REG
2206 MMIO_DH(GEN7_SC_INSTDONE, D_BDW_PLUS, mmio_read_from_hw, NULL);
2207
2208 MMIO_GM_RDR(_MMIO(0x2148), D_ALL, NULL, NULL);
2209 MMIO_GM_RDR(CCID(RENDER_RING_BASE), D_ALL, NULL, NULL);
2210 MMIO_GM_RDR(_MMIO(0x12198), D_ALL, NULL, NULL);
2211
2212 MMIO_RING_DFH(RING_TAIL, D_ALL, 0, NULL, NULL);
2213 MMIO_RING_DFH(RING_HEAD, D_ALL, 0, NULL, NULL);
2214 MMIO_RING_DFH(RING_CTL, D_ALL, 0, NULL, NULL);
2215 MMIO_RING_DFH(RING_ACTHD, D_ALL, 0, mmio_read_from_hw, NULL);
2216 MMIO_RING_GM(RING_START, D_ALL, NULL, NULL);
2217
2218 /* RING MODE */
2219 #define RING_REG(base) _MMIO((base) + 0x29c)
2220 MMIO_RING_DFH(RING_REG, D_ALL,
2221 F_MODE_MASK | F_CMD_ACCESS | F_CMD_WRITE_PATCH, NULL,
2222 ring_mode_mmio_write);
2223 #undef RING_REG
2224
2225 MMIO_RING_DFH(RING_MI_MODE, D_ALL, F_MODE_MASK | F_CMD_ACCESS,
2226 NULL, NULL);
2227 MMIO_RING_DFH(RING_INSTPM, D_ALL, F_MODE_MASK | F_CMD_ACCESS,
2228 NULL, NULL);
2229 MMIO_RING_DFH(RING_TIMESTAMP, D_ALL, F_CMD_ACCESS,
2230 mmio_read_from_hw, NULL);
2231 MMIO_RING_DFH(RING_TIMESTAMP_UDW, D_ALL, F_CMD_ACCESS,
2232 mmio_read_from_hw, NULL);
2233
2234 MMIO_DFH(GEN7_GT_MODE, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
2235 MMIO_DFH(CACHE_MODE_0_GEN7, D_ALL, F_MODE_MASK | F_CMD_ACCESS,
2236 NULL, NULL);
2237 MMIO_DFH(CACHE_MODE_1, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
2238 MMIO_DFH(CACHE_MODE_0, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
2239 MMIO_DFH(_MMIO(0x2124), D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
2240
2241 MMIO_DFH(_MMIO(0x20dc), D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
2242 MMIO_DFH(_3D_CHICKEN3, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
2243 MMIO_DFH(_MMIO(0x2088), D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
2244 MMIO_DFH(FF_SLICE_CS_CHICKEN2, D_ALL,
2245 F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
2246 MMIO_DFH(_MMIO(0x2470), D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
2247 MMIO_DFH(GAM_ECOCHK, D_ALL, F_CMD_ACCESS, NULL, NULL);
2248 MMIO_DFH(GEN7_COMMON_SLICE_CHICKEN1, D_ALL, F_MODE_MASK | F_CMD_ACCESS,
2249 NULL, NULL);
2250 MMIO_DFH(COMMON_SLICE_CHICKEN2, D_ALL, F_MODE_MASK | F_CMD_ACCESS,
2251 NULL, NULL);
2252 MMIO_DFH(_MMIO(0x9030), D_ALL, F_CMD_ACCESS, NULL, NULL);
2253 MMIO_DFH(_MMIO(0x20a0), D_ALL, F_CMD_ACCESS, NULL, NULL);
2254 MMIO_DFH(_MMIO(0x2420), D_ALL, F_CMD_ACCESS, NULL, NULL);
2255 MMIO_DFH(_MMIO(0x2430), D_ALL, F_CMD_ACCESS, NULL, NULL);
2256 MMIO_DFH(_MMIO(0x2434), D_ALL, F_CMD_ACCESS, NULL, NULL);
2257 MMIO_DFH(_MMIO(0x2438), D_ALL, F_CMD_ACCESS, NULL, NULL);
2258 MMIO_DFH(_MMIO(0x243c), D_ALL, F_CMD_ACCESS, NULL, NULL);
2259 MMIO_DFH(_MMIO(0x7018), D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
2260 MMIO_DFH(HALF_SLICE_CHICKEN3, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
2261 MMIO_DFH(GEN7_HALF_SLICE_CHICKEN1, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
2262
2263 /* display */
2264 MMIO_DH(PIPECONF(PIPE_A), D_ALL, NULL, pipeconf_mmio_write);
2265 MMIO_DH(PIPECONF(PIPE_B), D_ALL, NULL, pipeconf_mmio_write);
2266 MMIO_DH(PIPECONF(PIPE_C), D_ALL, NULL, pipeconf_mmio_write);
2267 MMIO_DH(PIPECONF(_PIPE_EDP), D_ALL, NULL, pipeconf_mmio_write);
2268 MMIO_DH(DSPSURF(PIPE_A), D_ALL, NULL, pri_surf_mmio_write);
2269 MMIO_DH(REG_50080(PIPE_A, PLANE_PRIMARY), D_ALL, NULL,
2270 reg50080_mmio_write);
2271 MMIO_DH(DSPSURF(PIPE_B), D_ALL, NULL, pri_surf_mmio_write);
2272 MMIO_DH(REG_50080(PIPE_B, PLANE_PRIMARY), D_ALL, NULL,
2273 reg50080_mmio_write);
2274 MMIO_DH(DSPSURF(PIPE_C), D_ALL, NULL, pri_surf_mmio_write);
2275 MMIO_DH(REG_50080(PIPE_C, PLANE_PRIMARY), D_ALL, NULL,
2276 reg50080_mmio_write);
2277 MMIO_DH(SPRSURF(PIPE_A), D_ALL, NULL, spr_surf_mmio_write);
2278 MMIO_DH(REG_50080(PIPE_A, PLANE_SPRITE0), D_ALL, NULL,
2279 reg50080_mmio_write);
2280 MMIO_DH(SPRSURF(PIPE_B), D_ALL, NULL, spr_surf_mmio_write);
2281 MMIO_DH(REG_50080(PIPE_B, PLANE_SPRITE0), D_ALL, NULL,
2282 reg50080_mmio_write);
2283 MMIO_DH(SPRSURF(PIPE_C), D_ALL, NULL, spr_surf_mmio_write);
2284 MMIO_DH(REG_50080(PIPE_C, PLANE_SPRITE0), D_ALL, NULL,
2285 reg50080_mmio_write);
2286
2287 MMIO_F(PCH_GMBUS0, 4 * 4, 0, 0, 0, D_ALL, gmbus_mmio_read,
2288 gmbus_mmio_write);
2289 MMIO_F(PCH_GPIO_BASE, 6 * 4, F_UNALIGN, 0, 0, D_ALL, NULL, NULL);
2290
2291 MMIO_F(_MMIO(_PCH_DPB_AUX_CH_CTL), 6 * 4, 0, 0, 0, D_PRE_SKL, NULL,
2292 dp_aux_ch_ctl_mmio_write);
2293 MMIO_F(_MMIO(_PCH_DPC_AUX_CH_CTL), 6 * 4, 0, 0, 0, D_PRE_SKL, NULL,
2294 dp_aux_ch_ctl_mmio_write);
2295 MMIO_F(_MMIO(_PCH_DPD_AUX_CH_CTL), 6 * 4, 0, 0, 0, D_PRE_SKL, NULL,
2296 dp_aux_ch_ctl_mmio_write);
2297
2298 MMIO_DH(PCH_ADPA, D_PRE_SKL, NULL, pch_adpa_mmio_write);
2299
2300 MMIO_DH(_MMIO(_PCH_TRANSACONF), D_ALL, NULL, transconf_mmio_write);
2301 MMIO_DH(_MMIO(_PCH_TRANSBCONF), D_ALL, NULL, transconf_mmio_write);
2302
2303 MMIO_DH(FDI_RX_IIR(PIPE_A), D_ALL, NULL, fdi_rx_iir_mmio_write);
2304 MMIO_DH(FDI_RX_IIR(PIPE_B), D_ALL, NULL, fdi_rx_iir_mmio_write);
2305 MMIO_DH(FDI_RX_IIR(PIPE_C), D_ALL, NULL, fdi_rx_iir_mmio_write);
2306 MMIO_DH(FDI_RX_IMR(PIPE_A), D_ALL, NULL, update_fdi_rx_iir_status);
2307 MMIO_DH(FDI_RX_IMR(PIPE_B), D_ALL, NULL, update_fdi_rx_iir_status);
2308 MMIO_DH(FDI_RX_IMR(PIPE_C), D_ALL, NULL, update_fdi_rx_iir_status);
2309 MMIO_DH(FDI_RX_CTL(PIPE_A), D_ALL, NULL, update_fdi_rx_iir_status);
2310 MMIO_DH(FDI_RX_CTL(PIPE_B), D_ALL, NULL, update_fdi_rx_iir_status);
2311 MMIO_DH(FDI_RX_CTL(PIPE_C), D_ALL, NULL, update_fdi_rx_iir_status);
2312 MMIO_DH(PCH_PP_CONTROL, D_ALL, NULL, pch_pp_control_mmio_write);
2313 MMIO_DH(_MMIO(0xe651c), D_ALL, dpy_reg_mmio_read, NULL);
2314 MMIO_DH(_MMIO(0xe661c), D_ALL, dpy_reg_mmio_read, NULL);
2315 MMIO_DH(_MMIO(0xe671c), D_ALL, dpy_reg_mmio_read, NULL);
2316 MMIO_DH(_MMIO(0xe681c), D_ALL, dpy_reg_mmio_read, NULL);
2317 MMIO_DH(_MMIO(0xe6c04), D_ALL, dpy_reg_mmio_read, NULL);
2318 MMIO_DH(_MMIO(0xe6e1c), D_ALL, dpy_reg_mmio_read, NULL);
2319
2320 MMIO_RO(PCH_PORT_HOTPLUG, D_ALL, 0,
2321 PORTA_HOTPLUG_STATUS_MASK
2322 | PORTB_HOTPLUG_STATUS_MASK
2323 | PORTC_HOTPLUG_STATUS_MASK
2324 | PORTD_HOTPLUG_STATUS_MASK,
2325 NULL, NULL);
2326
2327 MMIO_DH(LCPLL_CTL, D_ALL, NULL, lcpll_ctl_mmio_write);
2328 MMIO_DH(SOUTH_CHICKEN2, D_ALL, NULL, south_chicken2_mmio_write);
2329 MMIO_DH(SFUSE_STRAP, D_ALL, NULL, NULL);
2330 MMIO_DH(SBI_DATA, D_ALL, sbi_data_mmio_read, NULL);
2331 MMIO_DH(SBI_CTL_STAT, D_ALL, NULL, sbi_ctl_mmio_write);
2332
2333 MMIO_F(_MMIO(_DPA_AUX_CH_CTL), 6 * 4, 0, 0, 0, D_ALL, NULL,
2334 dp_aux_ch_ctl_mmio_write);
2335
2336 MMIO_DH(DDI_BUF_CTL(PORT_A), D_ALL, NULL, ddi_buf_ctl_mmio_write);
2337 MMIO_DH(DDI_BUF_CTL(PORT_B), D_ALL, NULL, ddi_buf_ctl_mmio_write);
2338 MMIO_DH(DDI_BUF_CTL(PORT_C), D_ALL, NULL, ddi_buf_ctl_mmio_write);
2339 MMIO_DH(DDI_BUF_CTL(PORT_D), D_ALL, NULL, ddi_buf_ctl_mmio_write);
2340 MMIO_DH(DDI_BUF_CTL(PORT_E), D_ALL, NULL, ddi_buf_ctl_mmio_write);
2341
2342 MMIO_DH(DP_TP_CTL(PORT_A), D_ALL, NULL, dp_tp_ctl_mmio_write);
2343 MMIO_DH(DP_TP_CTL(PORT_B), D_ALL, NULL, dp_tp_ctl_mmio_write);
2344 MMIO_DH(DP_TP_CTL(PORT_C), D_ALL, NULL, dp_tp_ctl_mmio_write);
2345 MMIO_DH(DP_TP_CTL(PORT_D), D_ALL, NULL, dp_tp_ctl_mmio_write);
2346 MMIO_DH(DP_TP_CTL(PORT_E), D_ALL, NULL, dp_tp_ctl_mmio_write);
2347
2348 MMIO_DH(DP_TP_STATUS(PORT_A), D_ALL, NULL, dp_tp_status_mmio_write);
2349 MMIO_DH(DP_TP_STATUS(PORT_B), D_ALL, NULL, dp_tp_status_mmio_write);
2350 MMIO_DH(DP_TP_STATUS(PORT_C), D_ALL, NULL, dp_tp_status_mmio_write);
2351 MMIO_DH(DP_TP_STATUS(PORT_D), D_ALL, NULL, dp_tp_status_mmio_write);
2352 MMIO_DH(DP_TP_STATUS(PORT_E), D_ALL, NULL, NULL);
2353
2354 MMIO_DH(_MMIO(_TRANS_DDI_FUNC_CTL_A), D_ALL, NULL, NULL);
2355 MMIO_DH(_MMIO(_TRANS_DDI_FUNC_CTL_B), D_ALL, NULL, NULL);
2356 MMIO_DH(_MMIO(_TRANS_DDI_FUNC_CTL_C), D_ALL, NULL, NULL);
2357 MMIO_DH(_MMIO(_TRANS_DDI_FUNC_CTL_EDP), D_ALL, NULL, NULL);
2358
2359 MMIO_DH(FORCEWAKE, D_ALL, NULL, NULL);
2360 MMIO_DFH(GTFIFODBG, D_ALL, F_CMD_ACCESS, NULL, NULL);
2361 MMIO_DFH(GTFIFOCTL, D_ALL, F_CMD_ACCESS, NULL, NULL);
2362 MMIO_DH(FORCEWAKE_MT, D_PRE_SKL, NULL, mul_force_wake_write);
2363 MMIO_DH(FORCEWAKE_ACK_HSW, D_BDW, NULL, NULL);
2364 MMIO_DH(GEN6_RC_CONTROL, D_ALL, NULL, NULL);
2365 MMIO_DH(GEN6_RC_STATE, D_ALL, NULL, NULL);
2366 MMIO_DH(HSW_PWR_WELL_CTL1, D_BDW, NULL, power_well_ctl_mmio_write);
2367 MMIO_DH(HSW_PWR_WELL_CTL2, D_BDW, NULL, power_well_ctl_mmio_write);
2368 MMIO_DH(HSW_PWR_WELL_CTL3, D_BDW, NULL, power_well_ctl_mmio_write);
2369 MMIO_DH(HSW_PWR_WELL_CTL4, D_BDW, NULL, power_well_ctl_mmio_write);
2370 MMIO_DH(HSW_PWR_WELL_CTL5, D_BDW, NULL, power_well_ctl_mmio_write);
2371 MMIO_DH(HSW_PWR_WELL_CTL6, D_BDW, NULL, power_well_ctl_mmio_write);
2372
2373 MMIO_DH(GEN6_GDRST, D_ALL, NULL, gdrst_mmio_write);
2374 MMIO_F(FENCE_REG_GEN6_LO(0), 0x80, 0, 0, 0, D_ALL, fence_mmio_read, fence_mmio_write);
2375 MMIO_DH(CPU_VGACNTRL, D_ALL, NULL, vga_control_mmio_write);
2376
2377 MMIO_DH(GEN7_ERR_INT, D_ALL, NULL, NULL);
2378 MMIO_DH(GFX_FLSH_CNTL_GEN6, D_ALL, NULL, NULL);
2379
2380 MMIO_DH(GEN6_MBCTL, D_ALL, NULL, mbctl_write);
2381 MMIO_DFH(GEN7_UCGCTL4, D_ALL, F_CMD_ACCESS, NULL, NULL);
2382
2383 MMIO_DH(FPGA_DBG, D_ALL, NULL, fpga_dbg_mmio_write);
2384 MMIO_DFH(_MMIO(0x215c), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
2385 MMIO_DFH(_MMIO(0x2178), D_ALL, F_CMD_ACCESS, NULL, NULL);
2386 MMIO_DFH(_MMIO(0x217c), D_ALL, F_CMD_ACCESS, NULL, NULL);
2387 MMIO_DFH(_MMIO(0x12178), D_ALL, F_CMD_ACCESS, NULL, NULL);
2388 MMIO_DFH(_MMIO(0x1217c), D_ALL, F_CMD_ACCESS, NULL, NULL);
2389
2390 MMIO_F(_MMIO(0x2290), 8, F_CMD_ACCESS, 0, 0, D_BDW_PLUS, NULL, NULL);
2391 MMIO_F(_MMIO(0x5200), 32, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
2392 MMIO_F(_MMIO(0x5240), 32, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
2393 MMIO_F(_MMIO(0x5280), 16, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
2394
2395 MMIO_DFH(_MMIO(0x1c17c), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
2396 MMIO_DFH(_MMIO(0x1c178), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
2397 MMIO_DFH(BCS_SWCTRL, D_ALL, F_CMD_ACCESS, NULL, NULL);
2398
2399 MMIO_F(HS_INVOCATION_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
2400 MMIO_F(DS_INVOCATION_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
2401 MMIO_F(IA_VERTICES_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
2402 MMIO_F(IA_PRIMITIVES_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
2403 MMIO_F(VS_INVOCATION_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
2404 MMIO_F(GS_INVOCATION_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
2405 MMIO_F(GS_PRIMITIVES_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
2406 MMIO_F(CL_INVOCATION_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
2407 MMIO_F(CL_PRIMITIVES_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
2408 MMIO_F(PS_INVOCATION_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
2409 MMIO_F(PS_DEPTH_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL);
2410 MMIO_DH(_MMIO(0x4260), D_BDW_PLUS, NULL, gvt_reg_tlb_control_handler);
2411 MMIO_DH(_MMIO(0x4264), D_BDW_PLUS, NULL, gvt_reg_tlb_control_handler);
2412 MMIO_DH(_MMIO(0x4268), D_BDW_PLUS, NULL, gvt_reg_tlb_control_handler);
2413 MMIO_DH(_MMIO(0x426c), D_BDW_PLUS, NULL, gvt_reg_tlb_control_handler);
2414 MMIO_DH(_MMIO(0x4270), D_BDW_PLUS, NULL, gvt_reg_tlb_control_handler);
2415 MMIO_DFH(_MMIO(0x4094), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
2416
2417 MMIO_DFH(ARB_MODE, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
2418 MMIO_RING_GM(RING_BBADDR, D_ALL, NULL, NULL);
2419 MMIO_DFH(_MMIO(0x2220), D_ALL, F_CMD_ACCESS, NULL, NULL);
2420 MMIO_DFH(_MMIO(0x12220), D_ALL, F_CMD_ACCESS, NULL, NULL);
2421 MMIO_DFH(_MMIO(0x22220), D_ALL, F_CMD_ACCESS, NULL, NULL);
2422 MMIO_RING_DFH(RING_SYNC_1, D_ALL, F_CMD_ACCESS, NULL, NULL);
2423 MMIO_RING_DFH(RING_SYNC_0, D_ALL, F_CMD_ACCESS, NULL, NULL);
2424 MMIO_DFH(_MMIO(0x22178), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
2425 MMIO_DFH(_MMIO(0x1a178), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
2426 MMIO_DFH(_MMIO(0x1a17c), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
2427 MMIO_DFH(_MMIO(0x2217c), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
2428
2429 MMIO_DH(EDP_PSR_IMR, D_BDW_PLUS, NULL, edp_psr_imr_iir_write);
2430 MMIO_DH(EDP_PSR_IIR, D_BDW_PLUS, NULL, edp_psr_imr_iir_write);
2431 MMIO_DH(GUC_STATUS, D_ALL, guc_status_read, NULL);
2432
2433 return 0;
2434 }
2435
init_bdw_mmio_info(struct intel_gvt * gvt)2436 static int init_bdw_mmio_info(struct intel_gvt *gvt)
2437 {
2438 int ret;
2439
2440 MMIO_DH(GEN8_GT_IMR(0), D_BDW_PLUS, NULL, intel_vgpu_reg_imr_handler);
2441 MMIO_DH(GEN8_GT_IER(0), D_BDW_PLUS, NULL, intel_vgpu_reg_ier_handler);
2442 MMIO_DH(GEN8_GT_IIR(0), D_BDW_PLUS, NULL, intel_vgpu_reg_iir_handler);
2443
2444 MMIO_DH(GEN8_GT_IMR(1), D_BDW_PLUS, NULL, intel_vgpu_reg_imr_handler);
2445 MMIO_DH(GEN8_GT_IER(1), D_BDW_PLUS, NULL, intel_vgpu_reg_ier_handler);
2446 MMIO_DH(GEN8_GT_IIR(1), D_BDW_PLUS, NULL, intel_vgpu_reg_iir_handler);
2447
2448 MMIO_DH(GEN8_GT_IMR(2), D_BDW_PLUS, NULL, intel_vgpu_reg_imr_handler);
2449 MMIO_DH(GEN8_GT_IER(2), D_BDW_PLUS, NULL, intel_vgpu_reg_ier_handler);
2450 MMIO_DH(GEN8_GT_IIR(2), D_BDW_PLUS, NULL, intel_vgpu_reg_iir_handler);
2451
2452 MMIO_DH(GEN8_GT_IMR(3), D_BDW_PLUS, NULL, intel_vgpu_reg_imr_handler);
2453 MMIO_DH(GEN8_GT_IER(3), D_BDW_PLUS, NULL, intel_vgpu_reg_ier_handler);
2454 MMIO_DH(GEN8_GT_IIR(3), D_BDW_PLUS, NULL, intel_vgpu_reg_iir_handler);
2455
2456 MMIO_DH(GEN8_DE_PIPE_IMR(PIPE_A), D_BDW_PLUS, NULL,
2457 intel_vgpu_reg_imr_handler);
2458 MMIO_DH(GEN8_DE_PIPE_IER(PIPE_A), D_BDW_PLUS, NULL,
2459 intel_vgpu_reg_ier_handler);
2460 MMIO_DH(GEN8_DE_PIPE_IIR(PIPE_A), D_BDW_PLUS, NULL,
2461 intel_vgpu_reg_iir_handler);
2462
2463 MMIO_DH(GEN8_DE_PIPE_IMR(PIPE_B), D_BDW_PLUS, NULL,
2464 intel_vgpu_reg_imr_handler);
2465 MMIO_DH(GEN8_DE_PIPE_IER(PIPE_B), D_BDW_PLUS, NULL,
2466 intel_vgpu_reg_ier_handler);
2467 MMIO_DH(GEN8_DE_PIPE_IIR(PIPE_B), D_BDW_PLUS, NULL,
2468 intel_vgpu_reg_iir_handler);
2469
2470 MMIO_DH(GEN8_DE_PIPE_IMR(PIPE_C), D_BDW_PLUS, NULL,
2471 intel_vgpu_reg_imr_handler);
2472 MMIO_DH(GEN8_DE_PIPE_IER(PIPE_C), D_BDW_PLUS, NULL,
2473 intel_vgpu_reg_ier_handler);
2474 MMIO_DH(GEN8_DE_PIPE_IIR(PIPE_C), D_BDW_PLUS, NULL,
2475 intel_vgpu_reg_iir_handler);
2476
2477 MMIO_DH(GEN8_DE_PORT_IMR, D_BDW_PLUS, NULL, intel_vgpu_reg_imr_handler);
2478 MMIO_DH(GEN8_DE_PORT_IER, D_BDW_PLUS, NULL, intel_vgpu_reg_ier_handler);
2479 MMIO_DH(GEN8_DE_PORT_IIR, D_BDW_PLUS, NULL, intel_vgpu_reg_iir_handler);
2480
2481 MMIO_DH(GEN8_DE_MISC_IMR, D_BDW_PLUS, NULL, intel_vgpu_reg_imr_handler);
2482 MMIO_DH(GEN8_DE_MISC_IER, D_BDW_PLUS, NULL, intel_vgpu_reg_ier_handler);
2483 MMIO_DH(GEN8_DE_MISC_IIR, D_BDW_PLUS, NULL, intel_vgpu_reg_iir_handler);
2484
2485 MMIO_DH(GEN8_PCU_IMR, D_BDW_PLUS, NULL, intel_vgpu_reg_imr_handler);
2486 MMIO_DH(GEN8_PCU_IER, D_BDW_PLUS, NULL, intel_vgpu_reg_ier_handler);
2487 MMIO_DH(GEN8_PCU_IIR, D_BDW_PLUS, NULL, intel_vgpu_reg_iir_handler);
2488
2489 MMIO_DH(GEN8_MASTER_IRQ, D_BDW_PLUS, NULL,
2490 intel_vgpu_reg_master_irq_handler);
2491
2492 MMIO_RING_DFH(RING_ACTHD_UDW, D_BDW_PLUS, 0,
2493 mmio_read_from_hw, NULL);
2494
2495 #define RING_REG(base) _MMIO((base) + 0xd0)
2496 MMIO_RING_F(RING_REG, 4, F_RO, 0,
2497 ~_MASKED_BIT_ENABLE(RESET_CTL_REQUEST_RESET), D_BDW_PLUS, NULL,
2498 ring_reset_ctl_write);
2499 #undef RING_REG
2500
2501 #define RING_REG(base) _MMIO((base) + 0x230)
2502 MMIO_RING_DFH(RING_REG, D_BDW_PLUS, 0, NULL, elsp_mmio_write);
2503 #undef RING_REG
2504
2505 #define RING_REG(base) _MMIO((base) + 0x234)
2506 MMIO_RING_F(RING_REG, 8, F_RO, 0, ~0, D_BDW_PLUS,
2507 NULL, NULL);
2508 #undef RING_REG
2509
2510 #define RING_REG(base) _MMIO((base) + 0x244)
2511 MMIO_RING_DFH(RING_REG, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
2512 #undef RING_REG
2513
2514 #define RING_REG(base) _MMIO((base) + 0x370)
2515 MMIO_RING_F(RING_REG, 48, F_RO, 0, ~0, D_BDW_PLUS, NULL, NULL);
2516 #undef RING_REG
2517
2518 #define RING_REG(base) _MMIO((base) + 0x3a0)
2519 MMIO_RING_DFH(RING_REG, D_BDW_PLUS, F_MODE_MASK, NULL, NULL);
2520 #undef RING_REG
2521
2522 MMIO_DH(GEN6_PCODE_MAILBOX, D_BDW_PLUS, NULL, mailbox_write);
2523
2524 #define RING_REG(base) _MMIO((base) + 0x270)
2525 MMIO_RING_F(RING_REG, 32, F_CMD_ACCESS, 0, 0, D_BDW_PLUS, NULL, NULL);
2526 #undef RING_REG
2527
2528 MMIO_RING_GM(RING_HWS_PGA, D_BDW_PLUS, NULL, hws_pga_write);
2529
2530 MMIO_DFH(HDC_CHICKEN0, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
2531
2532 MMIO_DFH(GEN8_ROW_CHICKEN, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS,
2533 NULL, NULL);
2534 MMIO_DFH(GEN7_ROW_CHICKEN2, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS,
2535 NULL, NULL);
2536 MMIO_DFH(GEN8_UCGCTL6, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
2537
2538 MMIO_DFH(_MMIO(0xb1f0), D_BDW, F_CMD_ACCESS, NULL, NULL);
2539 MMIO_DFH(_MMIO(0xb1c0), D_BDW, F_CMD_ACCESS, NULL, NULL);
2540 MMIO_DFH(GEN8_L3SQCREG4, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
2541 MMIO_DFH(_MMIO(0xb100), D_BDW, F_CMD_ACCESS, NULL, NULL);
2542 MMIO_DFH(_MMIO(0xb10c), D_BDW, F_CMD_ACCESS, NULL, NULL);
2543
2544 MMIO_F(_MMIO(0x24d0), 48, F_CMD_ACCESS | F_CMD_WRITE_PATCH, 0, 0,
2545 D_BDW_PLUS, NULL, force_nonpriv_write);
2546
2547 MMIO_DFH(_MMIO(0x83a4), D_BDW, F_CMD_ACCESS, NULL, NULL);
2548
2549 MMIO_DFH(_MMIO(0x8430), D_BDW, F_CMD_ACCESS, NULL, NULL);
2550
2551 MMIO_DFH(_MMIO(0xe194), D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
2552 MMIO_DFH(_MMIO(0xe188), D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
2553 MMIO_DFH(HALF_SLICE_CHICKEN2, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
2554 MMIO_DFH(_MMIO(0x2580), D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
2555
2556 MMIO_DFH(_MMIO(0x2248), D_BDW, F_CMD_ACCESS, NULL, NULL);
2557
2558 MMIO_DFH(_MMIO(0xe220), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
2559 MMIO_DFH(_MMIO(0xe230), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
2560 MMIO_DFH(_MMIO(0xe240), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
2561 MMIO_DFH(_MMIO(0xe260), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
2562 MMIO_DFH(_MMIO(0xe270), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
2563 MMIO_DFH(_MMIO(0xe280), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
2564 MMIO_DFH(_MMIO(0xe2a0), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
2565 MMIO_DFH(_MMIO(0xe2b0), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
2566 MMIO_DFH(_MMIO(0xe2c0), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
2567 MMIO_DFH(_MMIO(0x21f0), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
2568 return 0;
2569 }
2570
init_skl_mmio_info(struct intel_gvt * gvt)2571 static int init_skl_mmio_info(struct intel_gvt *gvt)
2572 {
2573 struct drm_i915_private *dev_priv = gvt->gt->i915;
2574 int ret;
2575
2576 MMIO_DH(FORCEWAKE_RENDER_GEN9, D_SKL_PLUS, NULL, mul_force_wake_write);
2577 MMIO_DH(FORCEWAKE_ACK_RENDER_GEN9, D_SKL_PLUS, NULL, NULL);
2578 MMIO_DH(FORCEWAKE_GT_GEN9, D_SKL_PLUS, NULL, mul_force_wake_write);
2579 MMIO_DH(FORCEWAKE_ACK_GT_GEN9, D_SKL_PLUS, NULL, NULL);
2580 MMIO_DH(FORCEWAKE_MEDIA_GEN9, D_SKL_PLUS, NULL, mul_force_wake_write);
2581 MMIO_DH(FORCEWAKE_ACK_MEDIA_GEN9, D_SKL_PLUS, NULL, NULL);
2582
2583 MMIO_F(DP_AUX_CH_CTL(AUX_CH_B), 6 * 4, 0, 0, 0, D_SKL_PLUS, NULL,
2584 dp_aux_ch_ctl_mmio_write);
2585 MMIO_F(DP_AUX_CH_CTL(AUX_CH_C), 6 * 4, 0, 0, 0, D_SKL_PLUS, NULL,
2586 dp_aux_ch_ctl_mmio_write);
2587 MMIO_F(DP_AUX_CH_CTL(AUX_CH_D), 6 * 4, 0, 0, 0, D_SKL_PLUS, NULL,
2588 dp_aux_ch_ctl_mmio_write);
2589
2590 MMIO_DH(HSW_PWR_WELL_CTL2, D_SKL_PLUS, NULL, skl_power_well_ctl_write);
2591
2592 MMIO_DH(DBUF_CTL_S(0), D_SKL_PLUS, NULL, gen9_dbuf_ctl_mmio_write);
2593
2594 MMIO_DFH(GEN9_GAMT_ECO_REG_RW_IA, D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL);
2595 MMIO_DFH(MMCD_MISC_CTRL, D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL);
2596 MMIO_DH(CHICKEN_PAR1_1, D_SKL_PLUS, NULL, NULL);
2597 MMIO_DH(LCPLL1_CTL, D_SKL_PLUS, NULL, skl_lcpll_write);
2598 MMIO_DH(LCPLL2_CTL, D_SKL_PLUS, NULL, skl_lcpll_write);
2599 MMIO_DH(DPLL_STATUS, D_SKL_PLUS, dpll_status_read, NULL);
2600
2601 MMIO_DH(SKL_PS_WIN_POS(PIPE_A, 0), D_SKL_PLUS, NULL, pf_write);
2602 MMIO_DH(SKL_PS_WIN_POS(PIPE_A, 1), D_SKL_PLUS, NULL, pf_write);
2603 MMIO_DH(SKL_PS_WIN_POS(PIPE_B, 0), D_SKL_PLUS, NULL, pf_write);
2604 MMIO_DH(SKL_PS_WIN_POS(PIPE_B, 1), D_SKL_PLUS, NULL, pf_write);
2605 MMIO_DH(SKL_PS_WIN_POS(PIPE_C, 0), D_SKL_PLUS, NULL, pf_write);
2606 MMIO_DH(SKL_PS_WIN_POS(PIPE_C, 1), D_SKL_PLUS, NULL, pf_write);
2607
2608 MMIO_DH(SKL_PS_WIN_SZ(PIPE_A, 0), D_SKL_PLUS, NULL, pf_write);
2609 MMIO_DH(SKL_PS_WIN_SZ(PIPE_A, 1), D_SKL_PLUS, NULL, pf_write);
2610 MMIO_DH(SKL_PS_WIN_SZ(PIPE_B, 0), D_SKL_PLUS, NULL, pf_write);
2611 MMIO_DH(SKL_PS_WIN_SZ(PIPE_B, 1), D_SKL_PLUS, NULL, pf_write);
2612 MMIO_DH(SKL_PS_WIN_SZ(PIPE_C, 0), D_SKL_PLUS, NULL, pf_write);
2613 MMIO_DH(SKL_PS_WIN_SZ(PIPE_C, 1), D_SKL_PLUS, NULL, pf_write);
2614
2615 MMIO_DH(SKL_PS_CTRL(PIPE_A, 0), D_SKL_PLUS, NULL, pf_write);
2616 MMIO_DH(SKL_PS_CTRL(PIPE_A, 1), D_SKL_PLUS, NULL, pf_write);
2617 MMIO_DH(SKL_PS_CTRL(PIPE_B, 0), D_SKL_PLUS, NULL, pf_write);
2618 MMIO_DH(SKL_PS_CTRL(PIPE_B, 1), D_SKL_PLUS, NULL, pf_write);
2619 MMIO_DH(SKL_PS_CTRL(PIPE_C, 0), D_SKL_PLUS, NULL, pf_write);
2620 MMIO_DH(SKL_PS_CTRL(PIPE_C, 1), D_SKL_PLUS, NULL, pf_write);
2621
2622 MMIO_DH(PLANE_BUF_CFG(PIPE_A, 0), D_SKL_PLUS, NULL, NULL);
2623 MMIO_DH(PLANE_BUF_CFG(PIPE_A, 1), D_SKL_PLUS, NULL, NULL);
2624 MMIO_DH(PLANE_BUF_CFG(PIPE_A, 2), D_SKL_PLUS, NULL, NULL);
2625 MMIO_DH(PLANE_BUF_CFG(PIPE_A, 3), D_SKL_PLUS, NULL, NULL);
2626
2627 MMIO_DH(PLANE_BUF_CFG(PIPE_B, 0), D_SKL_PLUS, NULL, NULL);
2628 MMIO_DH(PLANE_BUF_CFG(PIPE_B, 1), D_SKL_PLUS, NULL, NULL);
2629 MMIO_DH(PLANE_BUF_CFG(PIPE_B, 2), D_SKL_PLUS, NULL, NULL);
2630 MMIO_DH(PLANE_BUF_CFG(PIPE_B, 3), D_SKL_PLUS, NULL, NULL);
2631
2632 MMIO_DH(PLANE_BUF_CFG(PIPE_C, 0), D_SKL_PLUS, NULL, NULL);
2633 MMIO_DH(PLANE_BUF_CFG(PIPE_C, 1), D_SKL_PLUS, NULL, NULL);
2634 MMIO_DH(PLANE_BUF_CFG(PIPE_C, 2), D_SKL_PLUS, NULL, NULL);
2635 MMIO_DH(PLANE_BUF_CFG(PIPE_C, 3), D_SKL_PLUS, NULL, NULL);
2636
2637 MMIO_DH(CUR_BUF_CFG(PIPE_A), D_SKL_PLUS, NULL, NULL);
2638 MMIO_DH(CUR_BUF_CFG(PIPE_B), D_SKL_PLUS, NULL, NULL);
2639 MMIO_DH(CUR_BUF_CFG(PIPE_C), D_SKL_PLUS, NULL, NULL);
2640
2641 MMIO_DH(PLANE_WM_TRANS(PIPE_A, 0), D_SKL_PLUS, NULL, NULL);
2642 MMIO_DH(PLANE_WM_TRANS(PIPE_A, 1), D_SKL_PLUS, NULL, NULL);
2643 MMIO_DH(PLANE_WM_TRANS(PIPE_A, 2), D_SKL_PLUS, NULL, NULL);
2644
2645 MMIO_DH(PLANE_WM_TRANS(PIPE_B, 0), D_SKL_PLUS, NULL, NULL);
2646 MMIO_DH(PLANE_WM_TRANS(PIPE_B, 1), D_SKL_PLUS, NULL, NULL);
2647 MMIO_DH(PLANE_WM_TRANS(PIPE_B, 2), D_SKL_PLUS, NULL, NULL);
2648
2649 MMIO_DH(PLANE_WM_TRANS(PIPE_C, 0), D_SKL_PLUS, NULL, NULL);
2650 MMIO_DH(PLANE_WM_TRANS(PIPE_C, 1), D_SKL_PLUS, NULL, NULL);
2651 MMIO_DH(PLANE_WM_TRANS(PIPE_C, 2), D_SKL_PLUS, NULL, NULL);
2652
2653 MMIO_DH(CUR_WM_TRANS(PIPE_A), D_SKL_PLUS, NULL, NULL);
2654 MMIO_DH(CUR_WM_TRANS(PIPE_B), D_SKL_PLUS, NULL, NULL);
2655 MMIO_DH(CUR_WM_TRANS(PIPE_C), D_SKL_PLUS, NULL, NULL);
2656
2657 MMIO_DH(PLANE_NV12_BUF_CFG(PIPE_A, 0), D_SKL_PLUS, NULL, NULL);
2658 MMIO_DH(PLANE_NV12_BUF_CFG(PIPE_A, 1), D_SKL_PLUS, NULL, NULL);
2659 MMIO_DH(PLANE_NV12_BUF_CFG(PIPE_A, 2), D_SKL_PLUS, NULL, NULL);
2660 MMIO_DH(PLANE_NV12_BUF_CFG(PIPE_A, 3), D_SKL_PLUS, NULL, NULL);
2661
2662 MMIO_DH(PLANE_NV12_BUF_CFG(PIPE_B, 0), D_SKL_PLUS, NULL, NULL);
2663 MMIO_DH(PLANE_NV12_BUF_CFG(PIPE_B, 1), D_SKL_PLUS, NULL, NULL);
2664 MMIO_DH(PLANE_NV12_BUF_CFG(PIPE_B, 2), D_SKL_PLUS, NULL, NULL);
2665 MMIO_DH(PLANE_NV12_BUF_CFG(PIPE_B, 3), D_SKL_PLUS, NULL, NULL);
2666
2667 MMIO_DH(PLANE_NV12_BUF_CFG(PIPE_C, 0), D_SKL_PLUS, NULL, NULL);
2668 MMIO_DH(PLANE_NV12_BUF_CFG(PIPE_C, 1), D_SKL_PLUS, NULL, NULL);
2669 MMIO_DH(PLANE_NV12_BUF_CFG(PIPE_C, 2), D_SKL_PLUS, NULL, NULL);
2670 MMIO_DH(PLANE_NV12_BUF_CFG(PIPE_C, 3), D_SKL_PLUS, NULL, NULL);
2671
2672 MMIO_DH(_MMIO(_REG_701C0(PIPE_A, 1)), D_SKL_PLUS, NULL, NULL);
2673 MMIO_DH(_MMIO(_REG_701C0(PIPE_A, 2)), D_SKL_PLUS, NULL, NULL);
2674 MMIO_DH(_MMIO(_REG_701C0(PIPE_A, 3)), D_SKL_PLUS, NULL, NULL);
2675 MMIO_DH(_MMIO(_REG_701C0(PIPE_A, 4)), D_SKL_PLUS, NULL, NULL);
2676
2677 MMIO_DH(_MMIO(_REG_701C0(PIPE_B, 1)), D_SKL_PLUS, NULL, NULL);
2678 MMIO_DH(_MMIO(_REG_701C0(PIPE_B, 2)), D_SKL_PLUS, NULL, NULL);
2679 MMIO_DH(_MMIO(_REG_701C0(PIPE_B, 3)), D_SKL_PLUS, NULL, NULL);
2680 MMIO_DH(_MMIO(_REG_701C0(PIPE_B, 4)), D_SKL_PLUS, NULL, NULL);
2681
2682 MMIO_DH(_MMIO(_REG_701C0(PIPE_C, 1)), D_SKL_PLUS, NULL, NULL);
2683 MMIO_DH(_MMIO(_REG_701C0(PIPE_C, 2)), D_SKL_PLUS, NULL, NULL);
2684 MMIO_DH(_MMIO(_REG_701C0(PIPE_C, 3)), D_SKL_PLUS, NULL, NULL);
2685 MMIO_DH(_MMIO(_REG_701C0(PIPE_C, 4)), D_SKL_PLUS, NULL, NULL);
2686
2687 MMIO_DH(_MMIO(_REG_701C4(PIPE_A, 1)), D_SKL_PLUS, NULL, NULL);
2688 MMIO_DH(_MMIO(_REG_701C4(PIPE_A, 2)), D_SKL_PLUS, NULL, NULL);
2689 MMIO_DH(_MMIO(_REG_701C4(PIPE_A, 3)), D_SKL_PLUS, NULL, NULL);
2690 MMIO_DH(_MMIO(_REG_701C4(PIPE_A, 4)), D_SKL_PLUS, NULL, NULL);
2691
2692 MMIO_DH(_MMIO(_REG_701C4(PIPE_B, 1)), D_SKL_PLUS, NULL, NULL);
2693 MMIO_DH(_MMIO(_REG_701C4(PIPE_B, 2)), D_SKL_PLUS, NULL, NULL);
2694 MMIO_DH(_MMIO(_REG_701C4(PIPE_B, 3)), D_SKL_PLUS, NULL, NULL);
2695 MMIO_DH(_MMIO(_REG_701C4(PIPE_B, 4)), D_SKL_PLUS, NULL, NULL);
2696
2697 MMIO_DH(_MMIO(_REG_701C4(PIPE_C, 1)), D_SKL_PLUS, NULL, NULL);
2698 MMIO_DH(_MMIO(_REG_701C4(PIPE_C, 2)), D_SKL_PLUS, NULL, NULL);
2699 MMIO_DH(_MMIO(_REG_701C4(PIPE_C, 3)), D_SKL_PLUS, NULL, NULL);
2700 MMIO_DH(_MMIO(_REG_701C4(PIPE_C, 4)), D_SKL_PLUS, NULL, NULL);
2701
2702 MMIO_DFH(BDW_SCRATCH1, D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL);
2703
2704 MMIO_F(GEN9_GFX_MOCS(0), 0x7f8, F_CMD_ACCESS, 0, 0, D_SKL_PLUS,
2705 NULL, NULL);
2706 MMIO_F(GEN7_L3CNTLREG2, 0x80, F_CMD_ACCESS, 0, 0, D_SKL_PLUS,
2707 NULL, NULL);
2708
2709 MMIO_DFH(GEN7_FF_SLICE_CS_CHICKEN1, D_SKL_PLUS,
2710 F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
2711 MMIO_DFH(GEN9_CS_DEBUG_MODE1, D_SKL_PLUS, F_MODE_MASK | F_CMD_ACCESS,
2712 NULL, NULL);
2713
2714 /* TRTT */
2715 MMIO_DFH(TRVATTL3PTRDW(0), D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL);
2716 MMIO_DFH(TRVATTL3PTRDW(1), D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL);
2717 MMIO_DFH(TRVATTL3PTRDW(2), D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL);
2718 MMIO_DFH(TRVATTL3PTRDW(3), D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL);
2719 MMIO_DFH(TRVADR, D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL);
2720 MMIO_DFH(TRTTE, D_SKL_PLUS, F_CMD_ACCESS | F_PM_SAVE,
2721 NULL, gen9_trtte_write);
2722 MMIO_DFH(_MMIO(0x4dfc), D_SKL_PLUS, F_PM_SAVE,
2723 NULL, gen9_trtt_chicken_write);
2724
2725 MMIO_DFH(GEN8_GARBCNTL, D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL);
2726 MMIO_DH(DMA_CTRL, D_SKL_PLUS, NULL, dma_ctrl_write);
2727
2728 #define CSFE_CHICKEN1_REG(base) _MMIO((base) + 0xD4)
2729 MMIO_RING_DFH(CSFE_CHICKEN1_REG, D_SKL_PLUS, F_MODE_MASK | F_CMD_ACCESS,
2730 NULL, csfe_chicken1_mmio_write);
2731 #undef CSFE_CHICKEN1_REG
2732 MMIO_DFH(GEN8_HDC_CHICKEN1, D_SKL_PLUS, F_MODE_MASK | F_CMD_ACCESS,
2733 NULL, NULL);
2734 MMIO_DFH(GEN9_WM_CHICKEN3, D_SKL_PLUS, F_MODE_MASK | F_CMD_ACCESS,
2735 NULL, NULL);
2736
2737 MMIO_DFH(GAMT_CHKN_BIT_REG, D_KBL | D_CFL, F_CMD_ACCESS, NULL, NULL);
2738 MMIO_DFH(_MMIO(0xe4cc), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
2739
2740 return 0;
2741 }
2742
init_bxt_mmio_info(struct intel_gvt * gvt)2743 static int init_bxt_mmio_info(struct intel_gvt *gvt)
2744 {
2745 int ret;
2746
2747 MMIO_DH(BXT_P_CR_GT_DISP_PWRON, D_BXT, NULL, bxt_gt_disp_pwron_write);
2748 MMIO_DH(BXT_PHY_CTL_FAMILY(DPIO_PHY0), D_BXT,
2749 NULL, bxt_phy_ctl_family_write);
2750 MMIO_DH(BXT_PHY_CTL_FAMILY(DPIO_PHY1), D_BXT,
2751 NULL, bxt_phy_ctl_family_write);
2752 MMIO_DH(BXT_PORT_PLL_ENABLE(PORT_A), D_BXT,
2753 NULL, bxt_port_pll_enable_write);
2754 MMIO_DH(BXT_PORT_PLL_ENABLE(PORT_B), D_BXT,
2755 NULL, bxt_port_pll_enable_write);
2756 MMIO_DH(BXT_PORT_PLL_ENABLE(PORT_C), D_BXT, NULL,
2757 bxt_port_pll_enable_write);
2758
2759 MMIO_DH(BXT_PORT_PCS_DW12_GRP(DPIO_PHY0, DPIO_CH0), D_BXT,
2760 NULL, bxt_pcs_dw12_grp_write);
2761 MMIO_DH(BXT_PORT_TX_DW3_LN0(DPIO_PHY0, DPIO_CH0), D_BXT,
2762 bxt_port_tx_dw3_read, NULL);
2763 MMIO_DH(BXT_PORT_PCS_DW12_GRP(DPIO_PHY0, DPIO_CH1), D_BXT,
2764 NULL, bxt_pcs_dw12_grp_write);
2765 MMIO_DH(BXT_PORT_TX_DW3_LN0(DPIO_PHY0, DPIO_CH1), D_BXT,
2766 bxt_port_tx_dw3_read, NULL);
2767 MMIO_DH(BXT_PORT_PCS_DW12_GRP(DPIO_PHY1, DPIO_CH0), D_BXT,
2768 NULL, bxt_pcs_dw12_grp_write);
2769 MMIO_DH(BXT_PORT_TX_DW3_LN0(DPIO_PHY1, DPIO_CH0), D_BXT,
2770 bxt_port_tx_dw3_read, NULL);
2771 MMIO_DH(BXT_DE_PLL_ENABLE, D_BXT, NULL, bxt_de_pll_enable_write);
2772 MMIO_DFH(GEN8_L3SQCREG1, D_BXT, F_CMD_ACCESS, NULL, NULL);
2773 MMIO_DFH(GEN8_L3CNTLREG, D_BXT, F_CMD_ACCESS, NULL, NULL);
2774 MMIO_DFH(_MMIO(0x20D8), D_BXT, F_CMD_ACCESS, NULL, NULL);
2775 MMIO_F(GEN8_RING_CS_GPR(RENDER_RING_BASE, 0), 0x40, F_CMD_ACCESS,
2776 0, 0, D_BXT, NULL, NULL);
2777 MMIO_F(GEN8_RING_CS_GPR(GEN6_BSD_RING_BASE, 0), 0x40, F_CMD_ACCESS,
2778 0, 0, D_BXT, NULL, NULL);
2779 MMIO_F(GEN8_RING_CS_GPR(BLT_RING_BASE, 0), 0x40, F_CMD_ACCESS,
2780 0, 0, D_BXT, NULL, NULL);
2781 MMIO_F(GEN8_RING_CS_GPR(VEBOX_RING_BASE, 0), 0x40, F_CMD_ACCESS,
2782 0, 0, D_BXT, NULL, NULL);
2783
2784 MMIO_DFH(GEN9_CTX_PREEMPT_REG, D_BXT, F_CMD_ACCESS, NULL, NULL);
2785
2786 MMIO_DH(GEN8_PRIVATE_PAT_LO, D_BXT, NULL, bxt_ppat_low_write);
2787
2788 return 0;
2789 }
2790
find_mmio_block(struct intel_gvt * gvt,unsigned int offset)2791 static struct gvt_mmio_block *find_mmio_block(struct intel_gvt *gvt,
2792 unsigned int offset)
2793 {
2794 struct gvt_mmio_block *block = gvt->mmio.mmio_block;
2795 int num = gvt->mmio.num_mmio_block;
2796 int i;
2797
2798 for (i = 0; i < num; i++, block++) {
2799 if (offset >= i915_mmio_reg_offset(block->offset) &&
2800 offset < i915_mmio_reg_offset(block->offset) + block->size)
2801 return block;
2802 }
2803 return NULL;
2804 }
2805
2806 /**
2807 * intel_gvt_clean_mmio_info - clean up MMIO information table for GVT device
2808 * @gvt: GVT device
2809 *
2810 * This function is called at the driver unloading stage, to clean up the MMIO
2811 * information table of GVT device
2812 *
2813 */
intel_gvt_clean_mmio_info(struct intel_gvt * gvt)2814 void intel_gvt_clean_mmio_info(struct intel_gvt *gvt)
2815 {
2816 struct hlist_node *tmp;
2817 struct intel_gvt_mmio_info *e;
2818 int i;
2819
2820 hash_for_each_safe(gvt->mmio.mmio_info_table, i, tmp, e, node)
2821 kfree(e);
2822
2823 kfree(gvt->mmio.mmio_block);
2824 gvt->mmio.mmio_block = NULL;
2825 gvt->mmio.num_mmio_block = 0;
2826
2827 vfree(gvt->mmio.mmio_attribute);
2828 gvt->mmio.mmio_attribute = NULL;
2829 }
2830
handle_mmio(struct intel_gvt_mmio_table_iter * iter,u32 offset,u32 size)2831 static int handle_mmio(struct intel_gvt_mmio_table_iter *iter, u32 offset,
2832 u32 size)
2833 {
2834 struct intel_gvt *gvt = iter->data;
2835 struct intel_gvt_mmio_info *info, *p;
2836 u32 start, end, i;
2837
2838 if (WARN_ON(!IS_ALIGNED(offset, 4)))
2839 return -EINVAL;
2840
2841 start = offset;
2842 end = offset + size;
2843
2844 for (i = start; i < end; i += 4) {
2845 p = intel_gvt_find_mmio_info(gvt, i);
2846 if (p) {
2847 WARN(1, "dup mmio definition offset %x\n", i);
2848
2849 /* We return -EEXIST here to make GVT-g load fail.
2850 * So duplicated MMIO can be found as soon as
2851 * possible.
2852 */
2853 return -EEXIST;
2854 }
2855
2856 info = kzalloc(sizeof(*info), GFP_KERNEL);
2857 if (!info)
2858 return -ENOMEM;
2859
2860 info->offset = i;
2861 info->read = intel_vgpu_default_mmio_read;
2862 info->write = intel_vgpu_default_mmio_write;
2863 INIT_HLIST_NODE(&info->node);
2864 hash_add(gvt->mmio.mmio_info_table, &info->node, info->offset);
2865 gvt->mmio.num_tracked_mmio++;
2866 }
2867 return 0;
2868 }
2869
handle_mmio_block(struct intel_gvt_mmio_table_iter * iter,u32 offset,u32 size)2870 static int handle_mmio_block(struct intel_gvt_mmio_table_iter *iter,
2871 u32 offset, u32 size)
2872 {
2873 struct intel_gvt *gvt = iter->data;
2874 struct gvt_mmio_block *block = gvt->mmio.mmio_block;
2875 void *ret;
2876
2877 ret = krealloc(block,
2878 (gvt->mmio.num_mmio_block + 1) * sizeof(*block),
2879 GFP_KERNEL);
2880 if (!ret)
2881 return -ENOMEM;
2882
2883 gvt->mmio.mmio_block = block = ret;
2884
2885 block += gvt->mmio.num_mmio_block;
2886
2887 memset(block, 0, sizeof(*block));
2888
2889 block->offset = _MMIO(offset);
2890 block->size = size;
2891
2892 gvt->mmio.num_mmio_block++;
2893
2894 return 0;
2895 }
2896
handle_mmio_cb(struct intel_gvt_mmio_table_iter * iter,u32 offset,u32 size)2897 static int handle_mmio_cb(struct intel_gvt_mmio_table_iter *iter, u32 offset,
2898 u32 size)
2899 {
2900 if (size < 1024 || offset == i915_mmio_reg_offset(GEN9_GFX_MOCS(0)))
2901 return handle_mmio(iter, offset, size);
2902 else
2903 return handle_mmio_block(iter, offset, size);
2904 }
2905
init_mmio_info(struct intel_gvt * gvt)2906 static int init_mmio_info(struct intel_gvt *gvt)
2907 {
2908 struct intel_gvt_mmio_table_iter iter = {
2909 .i915 = gvt->gt->i915,
2910 .data = gvt,
2911 .handle_mmio_cb = handle_mmio_cb,
2912 };
2913
2914 return intel_gvt_iterate_mmio_table(&iter);
2915 }
2916
init_mmio_block_handlers(struct intel_gvt * gvt)2917 static int init_mmio_block_handlers(struct intel_gvt *gvt)
2918 {
2919 struct gvt_mmio_block *block;
2920
2921 block = find_mmio_block(gvt, VGT_PVINFO_PAGE);
2922 if (!block) {
2923 WARN(1, "fail to assign handlers to mmio block %x\n",
2924 i915_mmio_reg_offset(gvt->mmio.mmio_block->offset));
2925 return -ENODEV;
2926 }
2927
2928 block->read = pvinfo_mmio_read;
2929 block->write = pvinfo_mmio_write;
2930
2931 return 0;
2932 }
2933
2934 /**
2935 * intel_gvt_setup_mmio_info - setup MMIO information table for GVT device
2936 * @gvt: GVT device
2937 *
2938 * This function is called at the initialization stage, to setup the MMIO
2939 * information table for GVT device
2940 *
2941 * Returns:
2942 * zero on success, negative if failed.
2943 */
intel_gvt_setup_mmio_info(struct intel_gvt * gvt)2944 int intel_gvt_setup_mmio_info(struct intel_gvt *gvt)
2945 {
2946 struct intel_gvt_device_info *info = &gvt->device_info;
2947 struct drm_i915_private *i915 = gvt->gt->i915;
2948 int size = info->mmio_size / 4 * sizeof(*gvt->mmio.mmio_attribute);
2949 int ret;
2950
2951 gvt->mmio.mmio_attribute = vzalloc(size);
2952 if (!gvt->mmio.mmio_attribute)
2953 return -ENOMEM;
2954
2955 ret = init_mmio_info(gvt);
2956 if (ret)
2957 goto err;
2958
2959 ret = init_mmio_block_handlers(gvt);
2960 if (ret)
2961 goto err;
2962
2963 ret = init_generic_mmio_info(gvt);
2964 if (ret)
2965 goto err;
2966
2967 if (IS_BROADWELL(i915)) {
2968 ret = init_bdw_mmio_info(gvt);
2969 if (ret)
2970 goto err;
2971 } else if (IS_SKYLAKE(i915) ||
2972 IS_KABYLAKE(i915) ||
2973 IS_COFFEELAKE(i915) ||
2974 IS_COMETLAKE(i915)) {
2975 ret = init_bdw_mmio_info(gvt);
2976 if (ret)
2977 goto err;
2978 ret = init_skl_mmio_info(gvt);
2979 if (ret)
2980 goto err;
2981 } else if (IS_BROXTON(i915)) {
2982 ret = init_bdw_mmio_info(gvt);
2983 if (ret)
2984 goto err;
2985 ret = init_skl_mmio_info(gvt);
2986 if (ret)
2987 goto err;
2988 ret = init_bxt_mmio_info(gvt);
2989 if (ret)
2990 goto err;
2991 }
2992
2993 return 0;
2994 err:
2995 intel_gvt_clean_mmio_info(gvt);
2996 return ret;
2997 }
2998
2999 /**
3000 * intel_gvt_for_each_tracked_mmio - iterate each tracked mmio
3001 * @gvt: a GVT device
3002 * @handler: the handler
3003 * @data: private data given to handler
3004 *
3005 * Returns:
3006 * Zero on success, negative error code if failed.
3007 */
intel_gvt_for_each_tracked_mmio(struct intel_gvt * gvt,int (* handler)(struct intel_gvt * gvt,u32 offset,void * data),void * data)3008 int intel_gvt_for_each_tracked_mmio(struct intel_gvt *gvt,
3009 int (*handler)(struct intel_gvt *gvt, u32 offset, void *data),
3010 void *data)
3011 {
3012 struct gvt_mmio_block *block = gvt->mmio.mmio_block;
3013 struct intel_gvt_mmio_info *e;
3014 int i, j, ret;
3015
3016 hash_for_each(gvt->mmio.mmio_info_table, i, e, node) {
3017 ret = handler(gvt, e->offset, data);
3018 if (ret)
3019 return ret;
3020 }
3021
3022 for (i = 0; i < gvt->mmio.num_mmio_block; i++, block++) {
3023 /* pvinfo data doesn't come from hw mmio */
3024 if (i915_mmio_reg_offset(block->offset) == VGT_PVINFO_PAGE)
3025 continue;
3026
3027 for (j = 0; j < block->size; j += 4) {
3028 ret = handler(gvt, i915_mmio_reg_offset(block->offset) + j, data);
3029 if (ret)
3030 return ret;
3031 }
3032 }
3033 return 0;
3034 }
3035
3036 /**
3037 * intel_vgpu_default_mmio_read - default MMIO read handler
3038 * @vgpu: a vGPU
3039 * @offset: access offset
3040 * @p_data: data return buffer
3041 * @bytes: access data length
3042 *
3043 * Returns:
3044 * Zero on success, negative error code if failed.
3045 */
intel_vgpu_default_mmio_read(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)3046 int intel_vgpu_default_mmio_read(struct intel_vgpu *vgpu, unsigned int offset,
3047 void *p_data, unsigned int bytes)
3048 {
3049 read_vreg(vgpu, offset, p_data, bytes);
3050 return 0;
3051 }
3052
3053 /**
3054 * intel_vgpu_default_mmio_write() - default MMIO write handler
3055 * @vgpu: a vGPU
3056 * @offset: access offset
3057 * @p_data: write data buffer
3058 * @bytes: access data length
3059 *
3060 * Returns:
3061 * Zero on success, negative error code if failed.
3062 */
intel_vgpu_default_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)3063 int intel_vgpu_default_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
3064 void *p_data, unsigned int bytes)
3065 {
3066 write_vreg(vgpu, offset, p_data, bytes);
3067 return 0;
3068 }
3069
3070 /**
3071 * intel_vgpu_mask_mmio_write - write mask register
3072 * @vgpu: a vGPU
3073 * @offset: access offset
3074 * @p_data: write data buffer
3075 * @bytes: access data length
3076 *
3077 * Returns:
3078 * Zero on success, negative error code if failed.
3079 */
intel_vgpu_mask_mmio_write(struct intel_vgpu * vgpu,unsigned int offset,void * p_data,unsigned int bytes)3080 int intel_vgpu_mask_mmio_write(struct intel_vgpu *vgpu, unsigned int offset,
3081 void *p_data, unsigned int bytes)
3082 {
3083 u32 mask, old_vreg;
3084
3085 old_vreg = vgpu_vreg(vgpu, offset);
3086 write_vreg(vgpu, offset, p_data, bytes);
3087 mask = vgpu_vreg(vgpu, offset) >> 16;
3088 vgpu_vreg(vgpu, offset) = (old_vreg & ~mask) |
3089 (vgpu_vreg(vgpu, offset) & mask);
3090
3091 return 0;
3092 }
3093
3094 /**
3095 * intel_gvt_in_force_nonpriv_whitelist - if a mmio is in whitelist to be
3096 * force-nopriv register
3097 *
3098 * @gvt: a GVT device
3099 * @offset: register offset
3100 *
3101 * Returns:
3102 * True if the register is in force-nonpriv whitelist;
3103 * False if outside;
3104 */
intel_gvt_in_force_nonpriv_whitelist(struct intel_gvt * gvt,unsigned int offset)3105 bool intel_gvt_in_force_nonpriv_whitelist(struct intel_gvt *gvt,
3106 unsigned int offset)
3107 {
3108 return in_whitelist(offset);
3109 }
3110
3111 /**
3112 * intel_vgpu_mmio_reg_rw - emulate tracked mmio registers
3113 * @vgpu: a vGPU
3114 * @offset: register offset
3115 * @pdata: data buffer
3116 * @bytes: data length
3117 * @is_read: read or write
3118 *
3119 * Returns:
3120 * Zero on success, negative error code if failed.
3121 */
intel_vgpu_mmio_reg_rw(struct intel_vgpu * vgpu,unsigned int offset,void * pdata,unsigned int bytes,bool is_read)3122 int intel_vgpu_mmio_reg_rw(struct intel_vgpu *vgpu, unsigned int offset,
3123 void *pdata, unsigned int bytes, bool is_read)
3124 {
3125 struct drm_i915_private *i915 = vgpu->gvt->gt->i915;
3126 struct intel_gvt *gvt = vgpu->gvt;
3127 struct intel_gvt_mmio_info *mmio_info;
3128 struct gvt_mmio_block *mmio_block;
3129 gvt_mmio_func func;
3130 int ret;
3131
3132 if (drm_WARN_ON(&i915->drm, bytes > 8))
3133 return -EINVAL;
3134
3135 /*
3136 * Handle special MMIO blocks.
3137 */
3138 mmio_block = find_mmio_block(gvt, offset);
3139 if (mmio_block) {
3140 func = is_read ? mmio_block->read : mmio_block->write;
3141 if (func)
3142 return func(vgpu, offset, pdata, bytes);
3143 goto default_rw;
3144 }
3145
3146 /*
3147 * Normal tracked MMIOs.
3148 */
3149 mmio_info = intel_gvt_find_mmio_info(gvt, offset);
3150 if (!mmio_info) {
3151 gvt_dbg_mmio("untracked MMIO %08x len %d\n", offset, bytes);
3152 goto default_rw;
3153 }
3154
3155 if (is_read)
3156 return mmio_info->read(vgpu, offset, pdata, bytes);
3157 else {
3158 u64 ro_mask = mmio_info->ro_mask;
3159 u32 old_vreg = 0;
3160 u64 data = 0;
3161
3162 if (intel_gvt_mmio_has_mode_mask(gvt, mmio_info->offset)) {
3163 old_vreg = vgpu_vreg(vgpu, offset);
3164 }
3165
3166 if (likely(!ro_mask))
3167 ret = mmio_info->write(vgpu, offset, pdata, bytes);
3168 else if (!~ro_mask) {
3169 gvt_vgpu_err("try to write RO reg %x\n", offset);
3170 return 0;
3171 } else {
3172 /* keep the RO bits in the virtual register */
3173 memcpy(&data, pdata, bytes);
3174 data &= ~ro_mask;
3175 data |= vgpu_vreg(vgpu, offset) & ro_mask;
3176 ret = mmio_info->write(vgpu, offset, &data, bytes);
3177 }
3178
3179 /* higher 16bits of mode ctl regs are mask bits for change */
3180 if (intel_gvt_mmio_has_mode_mask(gvt, mmio_info->offset)) {
3181 u32 mask = vgpu_vreg(vgpu, offset) >> 16;
3182
3183 vgpu_vreg(vgpu, offset) = (old_vreg & ~mask)
3184 | (vgpu_vreg(vgpu, offset) & mask);
3185 }
3186 }
3187
3188 return ret;
3189
3190 default_rw:
3191 return is_read ?
3192 intel_vgpu_default_mmio_read(vgpu, offset, pdata, bytes) :
3193 intel_vgpu_default_mmio_write(vgpu, offset, pdata, bytes);
3194 }
3195
intel_gvt_restore_fence(struct intel_gvt * gvt)3196 void intel_gvt_restore_fence(struct intel_gvt *gvt)
3197 {
3198 struct intel_vgpu *vgpu;
3199 int i, id;
3200
3201 idr_for_each_entry(&(gvt)->vgpu_idr, vgpu, id) {
3202 mmio_hw_access_pre(gvt->gt);
3203 for (i = 0; i < vgpu_fence_sz(vgpu); i++)
3204 intel_vgpu_write_fence(vgpu, i, vgpu_vreg64(vgpu, fence_num_to_offset(i)));
3205 mmio_hw_access_post(gvt->gt);
3206 }
3207 }
3208
mmio_pm_restore_handler(struct intel_gvt * gvt,u32 offset,void * data)3209 static int mmio_pm_restore_handler(struct intel_gvt *gvt, u32 offset, void *data)
3210 {
3211 struct intel_vgpu *vgpu = data;
3212 struct drm_i915_private *dev_priv = gvt->gt->i915;
3213
3214 if (gvt->mmio.mmio_attribute[offset >> 2] & F_PM_SAVE)
3215 intel_uncore_write(&dev_priv->uncore, _MMIO(offset), vgpu_vreg(vgpu, offset));
3216
3217 return 0;
3218 }
3219
intel_gvt_restore_mmio(struct intel_gvt * gvt)3220 void intel_gvt_restore_mmio(struct intel_gvt *gvt)
3221 {
3222 struct intel_vgpu *vgpu;
3223 int id;
3224
3225 idr_for_each_entry(&(gvt)->vgpu_idr, vgpu, id) {
3226 mmio_hw_access_pre(gvt->gt);
3227 intel_gvt_for_each_tracked_mmio(gvt, mmio_pm_restore_handler, vgpu);
3228 mmio_hw_access_post(gvt->gt);
3229 }
3230 }
3231