1 /* 2 * Copyright(c) 2011-2016 Intel Corporation. All rights reserved. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 * SOFTWARE. 22 * 23 * Authors: 24 * Ke Yu 25 * Zhiyuan Lv <zhiyuan.lv@intel.com> 26 * 27 * Contributors: 28 * Terrence Xu <terrence.xu@intel.com> 29 * Changbin Du <changbin.du@intel.com> 30 * Bing Niu <bing.niu@intel.com> 31 * Zhi Wang <zhi.a.wang@intel.com> 32 * 33 */ 34 35 #include "i915_drv.h" 36 #include "i915_reg.h" 37 #include "gvt.h" 38 39 #include "display/intel_display.h" 40 #include "display/intel_dpio_phy.h" 41 42 static int get_edp_pipe(struct intel_vgpu *vgpu) 43 { 44 u32 data = vgpu_vreg(vgpu, _TRANS_DDI_FUNC_CTL_EDP); 45 int pipe = -1; 46 47 switch (data & TRANS_DDI_EDP_INPUT_MASK) { 48 case TRANS_DDI_EDP_INPUT_A_ON: 49 case TRANS_DDI_EDP_INPUT_A_ONOFF: 50 pipe = PIPE_A; 51 break; 52 case TRANS_DDI_EDP_INPUT_B_ONOFF: 53 pipe = PIPE_B; 54 break; 55 case TRANS_DDI_EDP_INPUT_C_ONOFF: 56 pipe = PIPE_C; 57 break; 58 } 59 return pipe; 60 } 61 62 static int edp_pipe_is_enabled(struct intel_vgpu *vgpu) 63 { 64 struct drm_i915_private *dev_priv = vgpu->gvt->gt->i915; 65 66 if (!(vgpu_vreg_t(vgpu, TRANSCONF(TRANSCODER_EDP)) & TRANSCONF_ENABLE)) 67 return 0; 68 69 if (!(vgpu_vreg(vgpu, _TRANS_DDI_FUNC_CTL_EDP) & TRANS_DDI_FUNC_ENABLE)) 70 return 0; 71 return 1; 72 } 73 74 int pipe_is_enabled(struct intel_vgpu *vgpu, int pipe) 75 { 76 struct drm_i915_private *dev_priv = vgpu->gvt->gt->i915; 77 78 if (drm_WARN_ON(&dev_priv->drm, 79 pipe < PIPE_A || pipe >= I915_MAX_PIPES)) 80 return -EINVAL; 81 82 if (vgpu_vreg_t(vgpu, TRANSCONF(pipe)) & TRANSCONF_ENABLE) 83 return 1; 84 85 if (edp_pipe_is_enabled(vgpu) && 86 get_edp_pipe(vgpu) == pipe) 87 return 1; 88 return 0; 89 } 90 91 static unsigned char virtual_dp_monitor_edid[GVT_EDID_NUM][EDID_SIZE] = { 92 { 93 /* EDID with 1024x768 as its resolution */ 94 /*Header*/ 95 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 96 /* Vendor & Product Identification */ 97 0x22, 0xf0, 0x54, 0x29, 0x00, 0x00, 0x00, 0x00, 0x04, 0x17, 98 /* Version & Revision */ 99 0x01, 0x04, 100 /* Basic Display Parameters & Features */ 101 0xa5, 0x34, 0x20, 0x78, 0x23, 102 /* Color Characteristics */ 103 0xfc, 0x81, 0xa4, 0x55, 0x4d, 0x9d, 0x25, 0x12, 0x50, 0x54, 104 /* Established Timings: maximum resolution is 1024x768 */ 105 0x21, 0x08, 0x00, 106 /* Standard Timings. All invalid */ 107 0x00, 0xc0, 0x00, 0xc0, 0x00, 0x40, 0x00, 0x80, 0x00, 0x00, 108 0x00, 0x40, 0x00, 0x00, 0x00, 0x01, 109 /* 18 Byte Data Blocks 1: invalid */ 110 0x00, 0x00, 0x80, 0xa0, 0x70, 0xb0, 111 0x23, 0x40, 0x30, 0x20, 0x36, 0x00, 0x06, 0x44, 0x21, 0x00, 0x00, 0x1a, 112 /* 18 Byte Data Blocks 2: invalid */ 113 0x00, 0x00, 0x00, 0xfd, 0x00, 0x18, 0x3c, 0x18, 0x50, 0x11, 0x00, 0x0a, 114 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 115 /* 18 Byte Data Blocks 3: invalid */ 116 0x00, 0x00, 0x00, 0xfc, 0x00, 0x48, 117 0x50, 0x20, 0x5a, 0x52, 0x32, 0x34, 0x34, 0x30, 0x77, 0x0a, 0x20, 0x20, 118 /* 18 Byte Data Blocks 4: invalid */ 119 0x00, 0x00, 0x00, 0xff, 0x00, 0x43, 0x4e, 0x34, 0x33, 0x30, 0x34, 0x30, 120 0x44, 0x58, 0x51, 0x0a, 0x20, 0x20, 121 /* Extension Block Count */ 122 0x00, 123 /* Checksum */ 124 0xef, 125 }, 126 { 127 /* EDID with 1920x1200 as its resolution */ 128 /*Header*/ 129 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 130 /* Vendor & Product Identification */ 131 0x22, 0xf0, 0x54, 0x29, 0x00, 0x00, 0x00, 0x00, 0x04, 0x17, 132 /* Version & Revision */ 133 0x01, 0x04, 134 /* Basic Display Parameters & Features */ 135 0xa5, 0x34, 0x20, 0x78, 0x23, 136 /* Color Characteristics */ 137 0xfc, 0x81, 0xa4, 0x55, 0x4d, 0x9d, 0x25, 0x12, 0x50, 0x54, 138 /* Established Timings: maximum resolution is 1024x768 */ 139 0x21, 0x08, 0x00, 140 /* 141 * Standard Timings. 142 * below new resolutions can be supported: 143 * 1920x1080, 1280x720, 1280x960, 1280x1024, 144 * 1440x900, 1600x1200, 1680x1050 145 */ 146 0xd1, 0xc0, 0x81, 0xc0, 0x81, 0x40, 0x81, 0x80, 0x95, 0x00, 147 0xa9, 0x40, 0xb3, 0x00, 0x01, 0x01, 148 /* 18 Byte Data Blocks 1: max resolution is 1920x1200 */ 149 0x28, 0x3c, 0x80, 0xa0, 0x70, 0xb0, 150 0x23, 0x40, 0x30, 0x20, 0x36, 0x00, 0x06, 0x44, 0x21, 0x00, 0x00, 0x1a, 151 /* 18 Byte Data Blocks 2: invalid */ 152 0x00, 0x00, 0x00, 0xfd, 0x00, 0x18, 0x3c, 0x18, 0x50, 0x11, 0x00, 0x0a, 153 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 154 /* 18 Byte Data Blocks 3: invalid */ 155 0x00, 0x00, 0x00, 0xfc, 0x00, 0x48, 156 0x50, 0x20, 0x5a, 0x52, 0x32, 0x34, 0x34, 0x30, 0x77, 0x0a, 0x20, 0x20, 157 /* 18 Byte Data Blocks 4: invalid */ 158 0x00, 0x00, 0x00, 0xff, 0x00, 0x43, 0x4e, 0x34, 0x33, 0x30, 0x34, 0x30, 159 0x44, 0x58, 0x51, 0x0a, 0x20, 0x20, 160 /* Extension Block Count */ 161 0x00, 162 /* Checksum */ 163 0x45, 164 }, 165 }; 166 167 #define DPCD_HEADER_SIZE 0xb 168 169 /* let the virtual display supports DP1.2 */ 170 static u8 dpcd_fix_data[DPCD_HEADER_SIZE] = { 171 0x12, 0x014, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 172 }; 173 174 static void emulate_monitor_status_change(struct intel_vgpu *vgpu) 175 { 176 struct drm_i915_private *dev_priv = vgpu->gvt->gt->i915; 177 int pipe; 178 179 if (IS_BROXTON(dev_priv)) { 180 enum transcoder trans; 181 enum port port; 182 183 /* Clear PIPE, DDI, PHY, HPD before setting new */ 184 vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) &= 185 ~(GEN8_DE_PORT_HOTPLUG(HPD_PORT_A) | 186 GEN8_DE_PORT_HOTPLUG(HPD_PORT_B) | 187 GEN8_DE_PORT_HOTPLUG(HPD_PORT_C)); 188 189 for_each_pipe(dev_priv, pipe) { 190 vgpu_vreg_t(vgpu, TRANSCONF(pipe)) &= 191 ~(TRANSCONF_ENABLE | TRANSCONF_STATE_ENABLE); 192 vgpu_vreg_t(vgpu, DSPCNTR(pipe)) &= ~DISP_ENABLE; 193 vgpu_vreg_t(vgpu, SPRCTL(pipe)) &= ~SPRITE_ENABLE; 194 vgpu_vreg_t(vgpu, CURCNTR(pipe)) &= ~MCURSOR_MODE_MASK; 195 vgpu_vreg_t(vgpu, CURCNTR(pipe)) |= MCURSOR_MODE_DISABLE; 196 } 197 198 for (trans = TRANSCODER_A; trans <= TRANSCODER_EDP; trans++) { 199 vgpu_vreg_t(vgpu, TRANS_DDI_FUNC_CTL(trans)) &= 200 ~(TRANS_DDI_BPC_MASK | TRANS_DDI_MODE_SELECT_MASK | 201 TRANS_DDI_PORT_MASK | TRANS_DDI_FUNC_ENABLE); 202 } 203 vgpu_vreg_t(vgpu, TRANS_DDI_FUNC_CTL(TRANSCODER_A)) &= 204 ~(TRANS_DDI_BPC_MASK | TRANS_DDI_MODE_SELECT_MASK | 205 TRANS_DDI_PORT_MASK); 206 207 for (port = PORT_A; port <= PORT_C; port++) { 208 vgpu_vreg_t(vgpu, BXT_PHY_CTL(port)) &= 209 ~BXT_PHY_LANE_ENABLED; 210 vgpu_vreg_t(vgpu, BXT_PHY_CTL(port)) |= 211 (BXT_PHY_CMNLANE_POWERDOWN_ACK | 212 BXT_PHY_LANE_POWERDOWN_ACK); 213 214 vgpu_vreg_t(vgpu, BXT_PORT_PLL_ENABLE(port)) &= 215 ~(PORT_PLL_POWER_STATE | PORT_PLL_POWER_ENABLE | 216 PORT_PLL_REF_SEL | PORT_PLL_LOCK | 217 PORT_PLL_ENABLE); 218 219 vgpu_vreg_t(vgpu, DDI_BUF_CTL(port)) &= 220 ~(DDI_INIT_DISPLAY_DETECTED | 221 DDI_BUF_CTL_ENABLE); 222 vgpu_vreg_t(vgpu, DDI_BUF_CTL(port)) |= DDI_BUF_IS_IDLE; 223 } 224 vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) &= 225 ~(PORTA_HOTPLUG_ENABLE | PORTA_HOTPLUG_STATUS_MASK); 226 vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) &= 227 ~(PORTB_HOTPLUG_ENABLE | PORTB_HOTPLUG_STATUS_MASK); 228 vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) &= 229 ~(PORTC_HOTPLUG_ENABLE | PORTC_HOTPLUG_STATUS_MASK); 230 /* No hpd_invert set in vgpu vbt, need to clear invert mask */ 231 vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) &= ~BXT_DDI_HPD_INVERT_MASK; 232 vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) &= ~BXT_DE_PORT_HOTPLUG_MASK; 233 234 vgpu_vreg_t(vgpu, BXT_P_CR_GT_DISP_PWRON) &= ~(BIT(0) | BIT(1)); 235 vgpu_vreg_t(vgpu, BXT_PORT_CL1CM_DW0(DPIO_PHY0)) &= 236 ~PHY_POWER_GOOD; 237 vgpu_vreg_t(vgpu, BXT_PORT_CL1CM_DW0(DPIO_PHY1)) &= 238 ~PHY_POWER_GOOD; 239 vgpu_vreg_t(vgpu, BXT_PHY_CTL_FAMILY(DPIO_PHY0)) &= ~BIT(30); 240 vgpu_vreg_t(vgpu, BXT_PHY_CTL_FAMILY(DPIO_PHY1)) &= ~BIT(30); 241 242 vgpu_vreg_t(vgpu, SFUSE_STRAP) &= ~SFUSE_STRAP_DDIB_DETECTED; 243 vgpu_vreg_t(vgpu, SFUSE_STRAP) &= ~SFUSE_STRAP_DDIC_DETECTED; 244 245 /* 246 * Only 1 PIPE enabled in current vGPU display and PIPE_A is 247 * tied to TRANSCODER_A in HW, so it's safe to assume PIPE_A, 248 * TRANSCODER_A can be enabled. PORT_x depends on the input of 249 * setup_virtual_dp_monitor. 250 */ 251 vgpu_vreg_t(vgpu, TRANSCONF(TRANSCODER_A)) |= TRANSCONF_ENABLE; 252 vgpu_vreg_t(vgpu, TRANSCONF(TRANSCODER_A)) |= TRANSCONF_STATE_ENABLE; 253 254 /* 255 * Golden M/N are calculated based on: 256 * 24 bpp, 4 lanes, 154000 pixel clk (from virtual EDID), 257 * DP link clk 1620 MHz and non-constant_n. 258 * TODO: calculate DP link symbol clk and stream clk m/n. 259 */ 260 vgpu_vreg_t(vgpu, PIPE_DATA_M1(TRANSCODER_A)) = TU_SIZE(64); 261 vgpu_vreg_t(vgpu, PIPE_DATA_M1(TRANSCODER_A)) |= 0x5b425e; 262 vgpu_vreg_t(vgpu, PIPE_DATA_N1(TRANSCODER_A)) = 0x800000; 263 vgpu_vreg_t(vgpu, PIPE_LINK_M1(TRANSCODER_A)) = 0x3cd6e; 264 vgpu_vreg_t(vgpu, PIPE_LINK_N1(TRANSCODER_A)) = 0x80000; 265 266 /* Enable per-DDI/PORT vreg */ 267 if (intel_vgpu_has_monitor_on_port(vgpu, PORT_A)) { 268 vgpu_vreg_t(vgpu, BXT_P_CR_GT_DISP_PWRON) |= BIT(1); 269 vgpu_vreg_t(vgpu, BXT_PORT_CL1CM_DW0(DPIO_PHY1)) |= 270 PHY_POWER_GOOD; 271 vgpu_vreg_t(vgpu, BXT_PHY_CTL_FAMILY(DPIO_PHY1)) |= 272 BIT(30); 273 vgpu_vreg_t(vgpu, BXT_PHY_CTL(PORT_A)) |= 274 BXT_PHY_LANE_ENABLED; 275 vgpu_vreg_t(vgpu, BXT_PHY_CTL(PORT_A)) &= 276 ~(BXT_PHY_CMNLANE_POWERDOWN_ACK | 277 BXT_PHY_LANE_POWERDOWN_ACK); 278 vgpu_vreg_t(vgpu, BXT_PORT_PLL_ENABLE(PORT_A)) |= 279 (PORT_PLL_POWER_STATE | PORT_PLL_POWER_ENABLE | 280 PORT_PLL_REF_SEL | PORT_PLL_LOCK | 281 PORT_PLL_ENABLE); 282 vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_A)) |= 283 (DDI_BUF_CTL_ENABLE | DDI_INIT_DISPLAY_DETECTED); 284 vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_A)) &= 285 ~DDI_BUF_IS_IDLE; 286 vgpu_vreg_t(vgpu, TRANS_DDI_FUNC_CTL(TRANSCODER_EDP)) |= 287 (TRANS_DDI_BPC_8 | TRANS_DDI_MODE_SELECT_DP_SST | 288 TRANS_DDI_FUNC_ENABLE); 289 vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) |= 290 PORTA_HOTPLUG_ENABLE; 291 vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) |= 292 GEN8_DE_PORT_HOTPLUG(HPD_PORT_A); 293 } 294 295 if (intel_vgpu_has_monitor_on_port(vgpu, PORT_B)) { 296 vgpu_vreg_t(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDIB_DETECTED; 297 vgpu_vreg_t(vgpu, BXT_P_CR_GT_DISP_PWRON) |= BIT(0); 298 vgpu_vreg_t(vgpu, BXT_PORT_CL1CM_DW0(DPIO_PHY0)) |= 299 PHY_POWER_GOOD; 300 vgpu_vreg_t(vgpu, BXT_PHY_CTL_FAMILY(DPIO_PHY0)) |= 301 BIT(30); 302 vgpu_vreg_t(vgpu, BXT_PHY_CTL(PORT_B)) |= 303 BXT_PHY_LANE_ENABLED; 304 vgpu_vreg_t(vgpu, BXT_PHY_CTL(PORT_B)) &= 305 ~(BXT_PHY_CMNLANE_POWERDOWN_ACK | 306 BXT_PHY_LANE_POWERDOWN_ACK); 307 vgpu_vreg_t(vgpu, BXT_PORT_PLL_ENABLE(PORT_B)) |= 308 (PORT_PLL_POWER_STATE | PORT_PLL_POWER_ENABLE | 309 PORT_PLL_REF_SEL | PORT_PLL_LOCK | 310 PORT_PLL_ENABLE); 311 vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_B)) |= 312 DDI_BUF_CTL_ENABLE; 313 vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_B)) &= 314 ~DDI_BUF_IS_IDLE; 315 vgpu_vreg_t(vgpu, TRANS_DDI_FUNC_CTL(TRANSCODER_A)) |= 316 (TRANS_DDI_BPC_8 | TRANS_DDI_MODE_SELECT_DP_SST | 317 (PORT_B << TRANS_DDI_PORT_SHIFT) | 318 TRANS_DDI_FUNC_ENABLE); 319 vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) |= 320 PORTB_HOTPLUG_ENABLE; 321 vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) |= 322 GEN8_DE_PORT_HOTPLUG(HPD_PORT_B); 323 } 324 325 if (intel_vgpu_has_monitor_on_port(vgpu, PORT_C)) { 326 vgpu_vreg_t(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDIC_DETECTED; 327 vgpu_vreg_t(vgpu, BXT_P_CR_GT_DISP_PWRON) |= BIT(0); 328 vgpu_vreg_t(vgpu, BXT_PORT_CL1CM_DW0(DPIO_PHY0)) |= 329 PHY_POWER_GOOD; 330 vgpu_vreg_t(vgpu, BXT_PHY_CTL_FAMILY(DPIO_PHY0)) |= 331 BIT(30); 332 vgpu_vreg_t(vgpu, BXT_PHY_CTL(PORT_C)) |= 333 BXT_PHY_LANE_ENABLED; 334 vgpu_vreg_t(vgpu, BXT_PHY_CTL(PORT_C)) &= 335 ~(BXT_PHY_CMNLANE_POWERDOWN_ACK | 336 BXT_PHY_LANE_POWERDOWN_ACK); 337 vgpu_vreg_t(vgpu, BXT_PORT_PLL_ENABLE(PORT_C)) |= 338 (PORT_PLL_POWER_STATE | PORT_PLL_POWER_ENABLE | 339 PORT_PLL_REF_SEL | PORT_PLL_LOCK | 340 PORT_PLL_ENABLE); 341 vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_C)) |= 342 DDI_BUF_CTL_ENABLE; 343 vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_C)) &= 344 ~DDI_BUF_IS_IDLE; 345 vgpu_vreg_t(vgpu, TRANS_DDI_FUNC_CTL(TRANSCODER_A)) |= 346 (TRANS_DDI_BPC_8 | TRANS_DDI_MODE_SELECT_DP_SST | 347 (PORT_B << TRANS_DDI_PORT_SHIFT) | 348 TRANS_DDI_FUNC_ENABLE); 349 vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) |= 350 PORTC_HOTPLUG_ENABLE; 351 vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) |= 352 GEN8_DE_PORT_HOTPLUG(HPD_PORT_C); 353 } 354 355 return; 356 } 357 358 vgpu_vreg_t(vgpu, SDEISR) &= ~(SDE_PORTB_HOTPLUG_CPT | 359 SDE_PORTC_HOTPLUG_CPT | 360 SDE_PORTD_HOTPLUG_CPT); 361 362 if (IS_SKYLAKE(dev_priv) || 363 IS_KABYLAKE(dev_priv) || 364 IS_COFFEELAKE(dev_priv) || 365 IS_COMETLAKE(dev_priv)) { 366 vgpu_vreg_t(vgpu, SDEISR) &= ~(SDE_PORTA_HOTPLUG_SPT | 367 SDE_PORTE_HOTPLUG_SPT); 368 vgpu_vreg_t(vgpu, SKL_FUSE_STATUS) |= 369 SKL_FUSE_DOWNLOAD_STATUS | 370 SKL_FUSE_PG_DIST_STATUS(SKL_PG0) | 371 SKL_FUSE_PG_DIST_STATUS(SKL_PG1) | 372 SKL_FUSE_PG_DIST_STATUS(SKL_PG2); 373 /* 374 * Only 1 PIPE enabled in current vGPU display and PIPE_A is 375 * tied to TRANSCODER_A in HW, so it's safe to assume PIPE_A, 376 * TRANSCODER_A can be enabled. PORT_x depends on the input of 377 * setup_virtual_dp_monitor, we can bind DPLL0 to any PORT_x 378 * so we fixed to DPLL0 here. 379 * Setup DPLL0: DP link clk 1620 MHz, non SSC, DP Mode 380 */ 381 vgpu_vreg_t(vgpu, DPLL_CTRL1) = 382 DPLL_CTRL1_OVERRIDE(DPLL_ID_SKL_DPLL0); 383 vgpu_vreg_t(vgpu, DPLL_CTRL1) |= 384 DPLL_CTRL1_LINK_RATE(DPLL_CTRL1_LINK_RATE_1620, DPLL_ID_SKL_DPLL0); 385 vgpu_vreg_t(vgpu, LCPLL1_CTL) = 386 LCPLL_PLL_ENABLE | LCPLL_PLL_LOCK; 387 vgpu_vreg_t(vgpu, DPLL_STATUS) = DPLL_LOCK(DPLL_ID_SKL_DPLL0); 388 /* 389 * Golden M/N are calculated based on: 390 * 24 bpp, 4 lanes, 154000 pixel clk (from virtual EDID), 391 * DP link clk 1620 MHz and non-constant_n. 392 * TODO: calculate DP link symbol clk and stream clk m/n. 393 */ 394 vgpu_vreg_t(vgpu, PIPE_DATA_M1(TRANSCODER_A)) = TU_SIZE(64); 395 vgpu_vreg_t(vgpu, PIPE_DATA_M1(TRANSCODER_A)) |= 0x5b425e; 396 vgpu_vreg_t(vgpu, PIPE_DATA_N1(TRANSCODER_A)) = 0x800000; 397 vgpu_vreg_t(vgpu, PIPE_LINK_M1(TRANSCODER_A)) = 0x3cd6e; 398 vgpu_vreg_t(vgpu, PIPE_LINK_N1(TRANSCODER_A)) = 0x80000; 399 } 400 401 if (intel_vgpu_has_monitor_on_port(vgpu, PORT_B)) { 402 vgpu_vreg_t(vgpu, DPLL_CTRL2) &= 403 ~DPLL_CTRL2_DDI_CLK_OFF(PORT_B); 404 vgpu_vreg_t(vgpu, DPLL_CTRL2) |= 405 DPLL_CTRL2_DDI_CLK_SEL(DPLL_ID_SKL_DPLL0, PORT_B); 406 vgpu_vreg_t(vgpu, DPLL_CTRL2) |= 407 DPLL_CTRL2_DDI_SEL_OVERRIDE(PORT_B); 408 vgpu_vreg_t(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDIB_DETECTED; 409 vgpu_vreg_t(vgpu, TRANS_DDI_FUNC_CTL(TRANSCODER_A)) &= 410 ~(TRANS_DDI_BPC_MASK | TRANS_DDI_MODE_SELECT_MASK | 411 TRANS_DDI_PORT_MASK); 412 vgpu_vreg_t(vgpu, TRANS_DDI_FUNC_CTL(TRANSCODER_A)) |= 413 (TRANS_DDI_BPC_8 | TRANS_DDI_MODE_SELECT_DP_SST | 414 (PORT_B << TRANS_DDI_PORT_SHIFT) | 415 TRANS_DDI_FUNC_ENABLE); 416 if (IS_BROADWELL(dev_priv)) { 417 vgpu_vreg_t(vgpu, PORT_CLK_SEL(PORT_B)) &= 418 ~PORT_CLK_SEL_MASK; 419 vgpu_vreg_t(vgpu, PORT_CLK_SEL(PORT_B)) |= 420 PORT_CLK_SEL_LCPLL_810; 421 } 422 vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_B)) |= DDI_BUF_CTL_ENABLE; 423 vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_B)) &= ~DDI_BUF_IS_IDLE; 424 vgpu_vreg_t(vgpu, SDEISR) |= SDE_PORTB_HOTPLUG_CPT; 425 } 426 427 if (intel_vgpu_has_monitor_on_port(vgpu, PORT_C)) { 428 vgpu_vreg_t(vgpu, DPLL_CTRL2) &= 429 ~DPLL_CTRL2_DDI_CLK_OFF(PORT_C); 430 vgpu_vreg_t(vgpu, DPLL_CTRL2) |= 431 DPLL_CTRL2_DDI_CLK_SEL(DPLL_ID_SKL_DPLL0, PORT_C); 432 vgpu_vreg_t(vgpu, DPLL_CTRL2) |= 433 DPLL_CTRL2_DDI_SEL_OVERRIDE(PORT_C); 434 vgpu_vreg_t(vgpu, SDEISR) |= SDE_PORTC_HOTPLUG_CPT; 435 vgpu_vreg_t(vgpu, TRANS_DDI_FUNC_CTL(TRANSCODER_A)) &= 436 ~(TRANS_DDI_BPC_MASK | TRANS_DDI_MODE_SELECT_MASK | 437 TRANS_DDI_PORT_MASK); 438 vgpu_vreg_t(vgpu, TRANS_DDI_FUNC_CTL(TRANSCODER_A)) |= 439 (TRANS_DDI_BPC_8 | TRANS_DDI_MODE_SELECT_DP_SST | 440 (PORT_C << TRANS_DDI_PORT_SHIFT) | 441 TRANS_DDI_FUNC_ENABLE); 442 if (IS_BROADWELL(dev_priv)) { 443 vgpu_vreg_t(vgpu, PORT_CLK_SEL(PORT_C)) &= 444 ~PORT_CLK_SEL_MASK; 445 vgpu_vreg_t(vgpu, PORT_CLK_SEL(PORT_C)) |= 446 PORT_CLK_SEL_LCPLL_810; 447 } 448 vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_C)) |= DDI_BUF_CTL_ENABLE; 449 vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_C)) &= ~DDI_BUF_IS_IDLE; 450 vgpu_vreg_t(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDIC_DETECTED; 451 } 452 453 if (intel_vgpu_has_monitor_on_port(vgpu, PORT_D)) { 454 vgpu_vreg_t(vgpu, DPLL_CTRL2) &= 455 ~DPLL_CTRL2_DDI_CLK_OFF(PORT_D); 456 vgpu_vreg_t(vgpu, DPLL_CTRL2) |= 457 DPLL_CTRL2_DDI_CLK_SEL(DPLL_ID_SKL_DPLL0, PORT_D); 458 vgpu_vreg_t(vgpu, DPLL_CTRL2) |= 459 DPLL_CTRL2_DDI_SEL_OVERRIDE(PORT_D); 460 vgpu_vreg_t(vgpu, SDEISR) |= SDE_PORTD_HOTPLUG_CPT; 461 vgpu_vreg_t(vgpu, TRANS_DDI_FUNC_CTL(TRANSCODER_A)) &= 462 ~(TRANS_DDI_BPC_MASK | TRANS_DDI_MODE_SELECT_MASK | 463 TRANS_DDI_PORT_MASK); 464 vgpu_vreg_t(vgpu, TRANS_DDI_FUNC_CTL(TRANSCODER_A)) |= 465 (TRANS_DDI_BPC_8 | TRANS_DDI_MODE_SELECT_DP_SST | 466 (PORT_D << TRANS_DDI_PORT_SHIFT) | 467 TRANS_DDI_FUNC_ENABLE); 468 if (IS_BROADWELL(dev_priv)) { 469 vgpu_vreg_t(vgpu, PORT_CLK_SEL(PORT_D)) &= 470 ~PORT_CLK_SEL_MASK; 471 vgpu_vreg_t(vgpu, PORT_CLK_SEL(PORT_D)) |= 472 PORT_CLK_SEL_LCPLL_810; 473 } 474 vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_D)) |= DDI_BUF_CTL_ENABLE; 475 vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_D)) &= ~DDI_BUF_IS_IDLE; 476 vgpu_vreg_t(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDID_DETECTED; 477 } 478 479 if ((IS_SKYLAKE(dev_priv) || 480 IS_KABYLAKE(dev_priv) || 481 IS_COFFEELAKE(dev_priv) || 482 IS_COMETLAKE(dev_priv)) && 483 intel_vgpu_has_monitor_on_port(vgpu, PORT_E)) { 484 vgpu_vreg_t(vgpu, SDEISR) |= SDE_PORTE_HOTPLUG_SPT; 485 } 486 487 if (intel_vgpu_has_monitor_on_port(vgpu, PORT_A)) { 488 if (IS_BROADWELL(dev_priv)) 489 vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) |= 490 GEN8_DE_PORT_HOTPLUG(HPD_PORT_A); 491 else 492 vgpu_vreg_t(vgpu, SDEISR) |= SDE_PORTA_HOTPLUG_SPT; 493 494 vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_A)) |= DDI_INIT_DISPLAY_DETECTED; 495 } 496 497 /* Clear host CRT status, so guest couldn't detect this host CRT. */ 498 if (IS_BROADWELL(dev_priv)) 499 vgpu_vreg_t(vgpu, PCH_ADPA) &= ~ADPA_CRT_HOTPLUG_MONITOR_MASK; 500 501 /* Disable Primary/Sprite/Cursor plane */ 502 for_each_pipe(dev_priv, pipe) { 503 vgpu_vreg_t(vgpu, DSPCNTR(pipe)) &= ~DISP_ENABLE; 504 vgpu_vreg_t(vgpu, SPRCTL(pipe)) &= ~SPRITE_ENABLE; 505 vgpu_vreg_t(vgpu, CURCNTR(pipe)) &= ~MCURSOR_MODE_MASK; 506 vgpu_vreg_t(vgpu, CURCNTR(pipe)) |= MCURSOR_MODE_DISABLE; 507 } 508 509 vgpu_vreg_t(vgpu, TRANSCONF(TRANSCODER_A)) |= TRANSCONF_ENABLE; 510 } 511 512 static void clean_virtual_dp_monitor(struct intel_vgpu *vgpu, int port_num) 513 { 514 struct intel_vgpu_port *port = intel_vgpu_port(vgpu, port_num); 515 516 kfree(port->edid); 517 port->edid = NULL; 518 519 kfree(port->dpcd); 520 port->dpcd = NULL; 521 } 522 523 static enum hrtimer_restart vblank_timer_fn(struct hrtimer *data) 524 { 525 struct intel_vgpu_vblank_timer *vblank_timer; 526 struct intel_vgpu *vgpu; 527 528 vblank_timer = container_of(data, struct intel_vgpu_vblank_timer, timer); 529 vgpu = container_of(vblank_timer, struct intel_vgpu, vblank_timer); 530 531 /* Set vblank emulation request per-vGPU bit */ 532 intel_gvt_request_service(vgpu->gvt, 533 INTEL_GVT_REQUEST_EMULATE_VBLANK + vgpu->id); 534 hrtimer_add_expires_ns(&vblank_timer->timer, vblank_timer->period); 535 return HRTIMER_RESTART; 536 } 537 538 static int setup_virtual_dp_monitor(struct intel_vgpu *vgpu, int port_num, 539 int type, unsigned int resolution) 540 { 541 struct drm_i915_private *i915 = vgpu->gvt->gt->i915; 542 struct intel_vgpu_port *port = intel_vgpu_port(vgpu, port_num); 543 struct intel_vgpu_vblank_timer *vblank_timer = &vgpu->vblank_timer; 544 545 if (drm_WARN_ON(&i915->drm, resolution >= GVT_EDID_NUM)) 546 return -EINVAL; 547 548 port->edid = kzalloc(sizeof(*(port->edid)), GFP_KERNEL); 549 if (!port->edid) 550 return -ENOMEM; 551 552 port->dpcd = kzalloc(sizeof(*(port->dpcd)), GFP_KERNEL); 553 if (!port->dpcd) { 554 kfree(port->edid); 555 return -ENOMEM; 556 } 557 558 memcpy(port->edid->edid_block, virtual_dp_monitor_edid[resolution], 559 EDID_SIZE); 560 port->edid->data_valid = true; 561 562 memcpy(port->dpcd->data, dpcd_fix_data, DPCD_HEADER_SIZE); 563 port->dpcd->data_valid = true; 564 port->dpcd->data[DPCD_SINK_COUNT] = 0x1; 565 port->type = type; 566 port->id = resolution; 567 port->vrefresh_k = GVT_DEFAULT_REFRESH_RATE * MSEC_PER_SEC; 568 vgpu->display.port_num = port_num; 569 570 /* Init hrtimer based on default refresh rate */ 571 hrtimer_init(&vblank_timer->timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); 572 vblank_timer->timer.function = vblank_timer_fn; 573 vblank_timer->vrefresh_k = port->vrefresh_k; 574 vblank_timer->period = DIV64_U64_ROUND_CLOSEST(NSEC_PER_SEC * MSEC_PER_SEC, vblank_timer->vrefresh_k); 575 576 emulate_monitor_status_change(vgpu); 577 578 return 0; 579 } 580 581 /** 582 * vgpu_update_vblank_emulation - Update per-vGPU vblank_timer 583 * @vgpu: vGPU operated 584 * @turnon: Turn ON/OFF vblank_timer 585 * 586 * This function is used to turn on/off or update the per-vGPU vblank_timer 587 * when TRANSCONF is enabled or disabled. vblank_timer period is also updated 588 * if guest changed the refresh rate. 589 * 590 */ 591 void vgpu_update_vblank_emulation(struct intel_vgpu *vgpu, bool turnon) 592 { 593 struct intel_vgpu_vblank_timer *vblank_timer = &vgpu->vblank_timer; 594 struct intel_vgpu_port *port = 595 intel_vgpu_port(vgpu, vgpu->display.port_num); 596 597 if (turnon) { 598 /* 599 * Skip the re-enable if already active and vrefresh unchanged. 600 * Otherwise, stop timer if already active and restart with new 601 * period. 602 */ 603 if (vblank_timer->vrefresh_k != port->vrefresh_k || 604 !hrtimer_active(&vblank_timer->timer)) { 605 /* Stop timer before start with new period if active */ 606 if (hrtimer_active(&vblank_timer->timer)) 607 hrtimer_cancel(&vblank_timer->timer); 608 609 /* Make sure new refresh rate updated to timer period */ 610 vblank_timer->vrefresh_k = port->vrefresh_k; 611 vblank_timer->period = DIV64_U64_ROUND_CLOSEST(NSEC_PER_SEC * MSEC_PER_SEC, vblank_timer->vrefresh_k); 612 hrtimer_start(&vblank_timer->timer, 613 ktime_add_ns(ktime_get(), vblank_timer->period), 614 HRTIMER_MODE_ABS); 615 } 616 } else { 617 /* Caller request to stop vblank */ 618 hrtimer_cancel(&vblank_timer->timer); 619 } 620 } 621 622 static void emulate_vblank_on_pipe(struct intel_vgpu *vgpu, int pipe) 623 { 624 struct drm_i915_private *dev_priv = vgpu->gvt->gt->i915; 625 struct intel_vgpu_irq *irq = &vgpu->irq; 626 int vblank_event[] = { 627 [PIPE_A] = PIPE_A_VBLANK, 628 [PIPE_B] = PIPE_B_VBLANK, 629 [PIPE_C] = PIPE_C_VBLANK, 630 }; 631 int event; 632 633 if (pipe < PIPE_A || pipe > PIPE_C) 634 return; 635 636 for_each_set_bit(event, irq->flip_done_event[pipe], 637 INTEL_GVT_EVENT_MAX) { 638 clear_bit(event, irq->flip_done_event[pipe]); 639 if (!pipe_is_enabled(vgpu, pipe)) 640 continue; 641 642 intel_vgpu_trigger_virtual_event(vgpu, event); 643 } 644 645 if (pipe_is_enabled(vgpu, pipe)) { 646 vgpu_vreg_t(vgpu, PIPE_FRMCOUNT_G4X(pipe))++; 647 intel_vgpu_trigger_virtual_event(vgpu, vblank_event[pipe]); 648 } 649 } 650 651 void intel_vgpu_emulate_vblank(struct intel_vgpu *vgpu) 652 { 653 int pipe; 654 655 mutex_lock(&vgpu->vgpu_lock); 656 for_each_pipe(vgpu->gvt->gt->i915, pipe) 657 emulate_vblank_on_pipe(vgpu, pipe); 658 mutex_unlock(&vgpu->vgpu_lock); 659 } 660 661 /** 662 * intel_vgpu_emulate_hotplug - trigger hotplug event for vGPU 663 * @vgpu: a vGPU 664 * @connected: link state 665 * 666 * This function is used to trigger hotplug interrupt for vGPU 667 * 668 */ 669 void intel_vgpu_emulate_hotplug(struct intel_vgpu *vgpu, bool connected) 670 { 671 struct drm_i915_private *i915 = vgpu->gvt->gt->i915; 672 673 /* TODO: add more platforms support */ 674 if (IS_SKYLAKE(i915) || 675 IS_KABYLAKE(i915) || 676 IS_COFFEELAKE(i915) || 677 IS_COMETLAKE(i915)) { 678 if (connected) { 679 vgpu_vreg_t(vgpu, SFUSE_STRAP) |= 680 SFUSE_STRAP_DDID_DETECTED; 681 vgpu_vreg_t(vgpu, SDEISR) |= SDE_PORTD_HOTPLUG_CPT; 682 } else { 683 vgpu_vreg_t(vgpu, SFUSE_STRAP) &= 684 ~SFUSE_STRAP_DDID_DETECTED; 685 vgpu_vreg_t(vgpu, SDEISR) &= ~SDE_PORTD_HOTPLUG_CPT; 686 } 687 vgpu_vreg_t(vgpu, SDEIIR) |= SDE_PORTD_HOTPLUG_CPT; 688 vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) |= 689 PORTD_HOTPLUG_STATUS_MASK; 690 intel_vgpu_trigger_virtual_event(vgpu, DP_D_HOTPLUG); 691 } else if (IS_BROXTON(i915)) { 692 if (intel_vgpu_has_monitor_on_port(vgpu, PORT_A)) { 693 if (connected) { 694 vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) |= 695 GEN8_DE_PORT_HOTPLUG(HPD_PORT_A); 696 } else { 697 vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) &= 698 ~GEN8_DE_PORT_HOTPLUG(HPD_PORT_A); 699 } 700 vgpu_vreg_t(vgpu, GEN8_DE_PORT_IIR) |= 701 GEN8_DE_PORT_HOTPLUG(HPD_PORT_A); 702 vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) &= 703 ~PORTA_HOTPLUG_STATUS_MASK; 704 vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) |= 705 PORTA_HOTPLUG_LONG_DETECT; 706 intel_vgpu_trigger_virtual_event(vgpu, DP_A_HOTPLUG); 707 } 708 if (intel_vgpu_has_monitor_on_port(vgpu, PORT_B)) { 709 if (connected) { 710 vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) |= 711 GEN8_DE_PORT_HOTPLUG(HPD_PORT_B); 712 vgpu_vreg_t(vgpu, SFUSE_STRAP) |= 713 SFUSE_STRAP_DDIB_DETECTED; 714 } else { 715 vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) &= 716 ~GEN8_DE_PORT_HOTPLUG(HPD_PORT_B); 717 vgpu_vreg_t(vgpu, SFUSE_STRAP) &= 718 ~SFUSE_STRAP_DDIB_DETECTED; 719 } 720 vgpu_vreg_t(vgpu, GEN8_DE_PORT_IIR) |= 721 GEN8_DE_PORT_HOTPLUG(HPD_PORT_B); 722 vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) &= 723 ~PORTB_HOTPLUG_STATUS_MASK; 724 vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) |= 725 PORTB_HOTPLUG_LONG_DETECT; 726 intel_vgpu_trigger_virtual_event(vgpu, DP_B_HOTPLUG); 727 } 728 if (intel_vgpu_has_monitor_on_port(vgpu, PORT_C)) { 729 if (connected) { 730 vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) |= 731 GEN8_DE_PORT_HOTPLUG(HPD_PORT_C); 732 vgpu_vreg_t(vgpu, SFUSE_STRAP) |= 733 SFUSE_STRAP_DDIC_DETECTED; 734 } else { 735 vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) &= 736 ~GEN8_DE_PORT_HOTPLUG(HPD_PORT_C); 737 vgpu_vreg_t(vgpu, SFUSE_STRAP) &= 738 ~SFUSE_STRAP_DDIC_DETECTED; 739 } 740 vgpu_vreg_t(vgpu, GEN8_DE_PORT_IIR) |= 741 GEN8_DE_PORT_HOTPLUG(HPD_PORT_C); 742 vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) &= 743 ~PORTC_HOTPLUG_STATUS_MASK; 744 vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) |= 745 PORTC_HOTPLUG_LONG_DETECT; 746 intel_vgpu_trigger_virtual_event(vgpu, DP_C_HOTPLUG); 747 } 748 } 749 } 750 751 /** 752 * intel_vgpu_clean_display - clean vGPU virtual display emulation 753 * @vgpu: a vGPU 754 * 755 * This function is used to clean vGPU virtual display emulation stuffs 756 * 757 */ 758 void intel_vgpu_clean_display(struct intel_vgpu *vgpu) 759 { 760 struct drm_i915_private *dev_priv = vgpu->gvt->gt->i915; 761 762 if (IS_SKYLAKE(dev_priv) || 763 IS_KABYLAKE(dev_priv) || 764 IS_COFFEELAKE(dev_priv) || 765 IS_COMETLAKE(dev_priv)) 766 clean_virtual_dp_monitor(vgpu, PORT_D); 767 else 768 clean_virtual_dp_monitor(vgpu, PORT_B); 769 770 vgpu_update_vblank_emulation(vgpu, false); 771 } 772 773 /** 774 * intel_vgpu_init_display- initialize vGPU virtual display emulation 775 * @vgpu: a vGPU 776 * @resolution: resolution index for intel_vgpu_edid 777 * 778 * This function is used to initialize vGPU virtual display emulation stuffs 779 * 780 * Returns: 781 * Zero on success, negative error code if failed. 782 * 783 */ 784 int intel_vgpu_init_display(struct intel_vgpu *vgpu, u64 resolution) 785 { 786 struct drm_i915_private *dev_priv = vgpu->gvt->gt->i915; 787 788 intel_vgpu_init_i2c_edid(vgpu); 789 790 if (IS_SKYLAKE(dev_priv) || 791 IS_KABYLAKE(dev_priv) || 792 IS_COFFEELAKE(dev_priv) || 793 IS_COMETLAKE(dev_priv)) 794 return setup_virtual_dp_monitor(vgpu, PORT_D, GVT_DP_D, 795 resolution); 796 else 797 return setup_virtual_dp_monitor(vgpu, PORT_B, GVT_DP_B, 798 resolution); 799 } 800 801 /** 802 * intel_vgpu_reset_display- reset vGPU virtual display emulation 803 * @vgpu: a vGPU 804 * 805 * This function is used to reset vGPU virtual display emulation stuffs 806 * 807 */ 808 void intel_vgpu_reset_display(struct intel_vgpu *vgpu) 809 { 810 emulate_monitor_status_change(vgpu); 811 } 812