| /* |
| * Copyright(c) 2011-2016 Intel Corporation. All rights reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| * |
| * Authors: |
| * Ke Yu |
| * Zhiyuan Lv <zhiyuan.lv@intel.com> |
| * |
| * Contributors: |
| * Terrence Xu <terrence.xu@intel.com> |
| * Changbin Du <changbin.du@intel.com> |
| * Bing Niu <bing.niu@intel.com> |
| * Zhi Wang <zhi.a.wang@intel.com> |
| * |
| */ |
| |
| #include "i915_drv.h" |
| #include "i915_reg.h" |
| #include "gvt.h" |
| |
| #include "display/bxt_dpio_phy_regs.h" |
| #include "display/i9xx_plane_regs.h" |
| #include "display/intel_cursor_regs.h" |
| #include "display/intel_display.h" |
| #include "display/intel_dpio_phy.h" |
| #include "display/intel_sprite_regs.h" |
| |
| static int get_edp_pipe(struct intel_vgpu *vgpu) |
| { |
| u32 data = vgpu_vreg(vgpu, _TRANS_DDI_FUNC_CTL_EDP); |
| int pipe = -1; |
| |
| switch (data & TRANS_DDI_EDP_INPUT_MASK) { |
| case TRANS_DDI_EDP_INPUT_A_ON: |
| case TRANS_DDI_EDP_INPUT_A_ONOFF: |
| pipe = PIPE_A; |
| break; |
| case TRANS_DDI_EDP_INPUT_B_ONOFF: |
| pipe = PIPE_B; |
| break; |
| case TRANS_DDI_EDP_INPUT_C_ONOFF: |
| pipe = PIPE_C; |
| break; |
| } |
| return pipe; |
| } |
| |
| static int edp_pipe_is_enabled(struct intel_vgpu *vgpu) |
| { |
| struct drm_i915_private *dev_priv = vgpu->gvt->gt->i915; |
| |
| if (!(vgpu_vreg_t(vgpu, TRANSCONF(dev_priv, TRANSCODER_EDP)) & TRANSCONF_ENABLE)) |
| return 0; |
| |
| if (!(vgpu_vreg(vgpu, _TRANS_DDI_FUNC_CTL_EDP) & TRANS_DDI_FUNC_ENABLE)) |
| return 0; |
| return 1; |
| } |
| |
| int pipe_is_enabled(struct intel_vgpu *vgpu, int pipe) |
| { |
| struct drm_i915_private *dev_priv = vgpu->gvt->gt->i915; |
| |
| if (drm_WARN_ON(&dev_priv->drm, |
| pipe < PIPE_A || pipe >= I915_MAX_PIPES)) |
| return -EINVAL; |
| |
| if (vgpu_vreg_t(vgpu, TRANSCONF(dev_priv, pipe)) & TRANSCONF_ENABLE) |
| return 1; |
| |
| if (edp_pipe_is_enabled(vgpu) && |
| get_edp_pipe(vgpu) == pipe) |
| return 1; |
| return 0; |
| } |
| |
| static unsigned char virtual_dp_monitor_edid[GVT_EDID_NUM][EDID_SIZE] = { |
| { |
| /* EDID with 1024x768 as its resolution */ |
| /*Header*/ |
| 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, |
| /* Vendor & Product Identification */ |
| 0x22, 0xf0, 0x54, 0x29, 0x00, 0x00, 0x00, 0x00, 0x04, 0x17, |
| /* Version & Revision */ |
| 0x01, 0x04, |
| /* Basic Display Parameters & Features */ |
| 0xa5, 0x34, 0x20, 0x78, 0x23, |
| /* Color Characteristics */ |
| 0xfc, 0x81, 0xa4, 0x55, 0x4d, 0x9d, 0x25, 0x12, 0x50, 0x54, |
| /* Established Timings: maximum resolution is 1024x768 */ |
| 0x21, 0x08, 0x00, |
| /* Standard Timings. All invalid */ |
| 0x00, 0xc0, 0x00, 0xc0, 0x00, 0x40, 0x00, 0x80, 0x00, 0x00, |
| 0x00, 0x40, 0x00, 0x00, 0x00, 0x01, |
| /* 18 Byte Data Blocks 1: invalid */ |
| 0x00, 0x00, 0x80, 0xa0, 0x70, 0xb0, |
| 0x23, 0x40, 0x30, 0x20, 0x36, 0x00, 0x06, 0x44, 0x21, 0x00, 0x00, 0x1a, |
| /* 18 Byte Data Blocks 2: invalid */ |
| 0x00, 0x00, 0x00, 0xfd, 0x00, 0x18, 0x3c, 0x18, 0x50, 0x11, 0x00, 0x0a, |
| 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, |
| /* 18 Byte Data Blocks 3: invalid */ |
| 0x00, 0x00, 0x00, 0xfc, 0x00, 0x48, |
| 0x50, 0x20, 0x5a, 0x52, 0x32, 0x34, 0x34, 0x30, 0x77, 0x0a, 0x20, 0x20, |
| /* 18 Byte Data Blocks 4: invalid */ |
| 0x00, 0x00, 0x00, 0xff, 0x00, 0x43, 0x4e, 0x34, 0x33, 0x30, 0x34, 0x30, |
| 0x44, 0x58, 0x51, 0x0a, 0x20, 0x20, |
| /* Extension Block Count */ |
| 0x00, |
| /* Checksum */ |
| 0xef, |
| }, |
| { |
| /* EDID with 1920x1200 as its resolution */ |
| /*Header*/ |
| 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, |
| /* Vendor & Product Identification */ |
| 0x22, 0xf0, 0x54, 0x29, 0x00, 0x00, 0x00, 0x00, 0x04, 0x17, |
| /* Version & Revision */ |
| 0x01, 0x04, |
| /* Basic Display Parameters & Features */ |
| 0xa5, 0x34, 0x20, 0x78, 0x23, |
| /* Color Characteristics */ |
| 0xfc, 0x81, 0xa4, 0x55, 0x4d, 0x9d, 0x25, 0x12, 0x50, 0x54, |
| /* Established Timings: maximum resolution is 1024x768 */ |
| 0x21, 0x08, 0x00, |
| /* |
| * Standard Timings. |
| * below new resolutions can be supported: |
| * 1920x1080, 1280x720, 1280x960, 1280x1024, |
| * 1440x900, 1600x1200, 1680x1050 |
| */ |
| 0xd1, 0xc0, 0x81, 0xc0, 0x81, 0x40, 0x81, 0x80, 0x95, 0x00, |
| 0xa9, 0x40, 0xb3, 0x00, 0x01, 0x01, |
| /* 18 Byte Data Blocks 1: max resolution is 1920x1200 */ |
| 0x28, 0x3c, 0x80, 0xa0, 0x70, 0xb0, |
| 0x23, 0x40, 0x30, 0x20, 0x36, 0x00, 0x06, 0x44, 0x21, 0x00, 0x00, 0x1a, |
| /* 18 Byte Data Blocks 2: invalid */ |
| 0x00, 0x00, 0x00, 0xfd, 0x00, 0x18, 0x3c, 0x18, 0x50, 0x11, 0x00, 0x0a, |
| 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, |
| /* 18 Byte Data Blocks 3: invalid */ |
| 0x00, 0x00, 0x00, 0xfc, 0x00, 0x48, |
| 0x50, 0x20, 0x5a, 0x52, 0x32, 0x34, 0x34, 0x30, 0x77, 0x0a, 0x20, 0x20, |
| /* 18 Byte Data Blocks 4: invalid */ |
| 0x00, 0x00, 0x00, 0xff, 0x00, 0x43, 0x4e, 0x34, 0x33, 0x30, 0x34, 0x30, |
| 0x44, 0x58, 0x51, 0x0a, 0x20, 0x20, |
| /* Extension Block Count */ |
| 0x00, |
| /* Checksum */ |
| 0x45, |
| }, |
| }; |
| |
| #define DPCD_HEADER_SIZE 0xb |
| |
| /* let the virtual display supports DP1.2 */ |
| static u8 dpcd_fix_data[DPCD_HEADER_SIZE] = { |
| 0x12, 0x014, 0x84, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 |
| }; |
| |
| static void emulate_monitor_status_change(struct intel_vgpu *vgpu) |
| { |
| struct drm_i915_private *dev_priv = vgpu->gvt->gt->i915; |
| int pipe; |
| |
| if (IS_BROXTON(dev_priv)) { |
| enum transcoder trans; |
| enum port port; |
| |
| /* Clear PIPE, DDI, PHY, HPD before setting new */ |
| vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) &= |
| ~(GEN8_DE_PORT_HOTPLUG(HPD_PORT_A) | |
| GEN8_DE_PORT_HOTPLUG(HPD_PORT_B) | |
| GEN8_DE_PORT_HOTPLUG(HPD_PORT_C)); |
| |
| for_each_pipe(dev_priv, pipe) { |
| vgpu_vreg_t(vgpu, TRANSCONF(dev_priv, pipe)) &= |
| ~(TRANSCONF_ENABLE | TRANSCONF_STATE_ENABLE); |
| vgpu_vreg_t(vgpu, DSPCNTR(dev_priv, pipe)) &= ~DISP_ENABLE; |
| vgpu_vreg_t(vgpu, SPRCTL(pipe)) &= ~SPRITE_ENABLE; |
| vgpu_vreg_t(vgpu, CURCNTR(dev_priv, pipe)) &= ~MCURSOR_MODE_MASK; |
| vgpu_vreg_t(vgpu, CURCNTR(dev_priv, pipe)) |= MCURSOR_MODE_DISABLE; |
| } |
| |
| for (trans = TRANSCODER_A; trans <= TRANSCODER_EDP; trans++) { |
| vgpu_vreg_t(vgpu, TRANS_DDI_FUNC_CTL(dev_priv, trans)) &= |
| ~(TRANS_DDI_BPC_MASK | TRANS_DDI_MODE_SELECT_MASK | |
| TRANS_DDI_PORT_MASK | TRANS_DDI_FUNC_ENABLE); |
| } |
| vgpu_vreg_t(vgpu, TRANS_DDI_FUNC_CTL(dev_priv, TRANSCODER_A)) &= |
| ~(TRANS_DDI_BPC_MASK | TRANS_DDI_MODE_SELECT_MASK | |
| TRANS_DDI_PORT_MASK); |
| |
| for (port = PORT_A; port <= PORT_C; port++) { |
| vgpu_vreg_t(vgpu, BXT_PHY_CTL(port)) &= |
| ~BXT_PHY_LANE_ENABLED; |
| vgpu_vreg_t(vgpu, BXT_PHY_CTL(port)) |= |
| (BXT_PHY_CMNLANE_POWERDOWN_ACK | |
| BXT_PHY_LANE_POWERDOWN_ACK); |
| |
| vgpu_vreg_t(vgpu, BXT_PORT_PLL_ENABLE(port)) &= |
| ~(PORT_PLL_POWER_STATE | PORT_PLL_POWER_ENABLE | |
| PORT_PLL_REF_SEL | PORT_PLL_LOCK | |
| PORT_PLL_ENABLE); |
| |
| vgpu_vreg_t(vgpu, DDI_BUF_CTL(port)) &= |
| ~(DDI_INIT_DISPLAY_DETECTED | |
| DDI_BUF_CTL_ENABLE); |
| vgpu_vreg_t(vgpu, DDI_BUF_CTL(port)) |= DDI_BUF_IS_IDLE; |
| } |
| vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) &= |
| ~(PORTA_HOTPLUG_ENABLE | PORTA_HOTPLUG_STATUS_MASK); |
| vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) &= |
| ~(PORTB_HOTPLUG_ENABLE | PORTB_HOTPLUG_STATUS_MASK); |
| vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) &= |
| ~(PORTC_HOTPLUG_ENABLE | PORTC_HOTPLUG_STATUS_MASK); |
| /* No hpd_invert set in vgpu vbt, need to clear invert mask */ |
| vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) &= ~BXT_DDI_HPD_INVERT_MASK; |
| vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) &= ~BXT_DE_PORT_HOTPLUG_MASK; |
| |
| vgpu_vreg_t(vgpu, BXT_P_CR_GT_DISP_PWRON) &= ~(BIT(0) | BIT(1)); |
| vgpu_vreg_t(vgpu, BXT_PORT_CL1CM_DW0(DPIO_PHY0)) &= |
| ~PHY_POWER_GOOD; |
| vgpu_vreg_t(vgpu, BXT_PORT_CL1CM_DW0(DPIO_PHY1)) &= |
| ~PHY_POWER_GOOD; |
| vgpu_vreg_t(vgpu, BXT_PHY_CTL_FAMILY(DPIO_PHY0)) &= ~BIT(30); |
| vgpu_vreg_t(vgpu, BXT_PHY_CTL_FAMILY(DPIO_PHY1)) &= ~BIT(30); |
| |
| vgpu_vreg_t(vgpu, SFUSE_STRAP) &= ~SFUSE_STRAP_DDIB_DETECTED; |
| vgpu_vreg_t(vgpu, SFUSE_STRAP) &= ~SFUSE_STRAP_DDIC_DETECTED; |
| |
| /* |
| * Only 1 PIPE enabled in current vGPU display and PIPE_A is |
| * tied to TRANSCODER_A in HW, so it's safe to assume PIPE_A, |
| * TRANSCODER_A can be enabled. PORT_x depends on the input of |
| * setup_virtual_dp_monitor. |
| */ |
| vgpu_vreg_t(vgpu, TRANSCONF(dev_priv, TRANSCODER_A)) |= TRANSCONF_ENABLE; |
| vgpu_vreg_t(vgpu, TRANSCONF(dev_priv, TRANSCODER_A)) |= TRANSCONF_STATE_ENABLE; |
| |
| /* |
| * Golden M/N are calculated based on: |
| * 24 bpp, 4 lanes, 154000 pixel clk (from virtual EDID), |
| * DP link clk 1620 MHz and non-constant_n. |
| * TODO: calculate DP link symbol clk and stream clk m/n. |
| */ |
| vgpu_vreg_t(vgpu, PIPE_DATA_M1(dev_priv, TRANSCODER_A)) = TU_SIZE(64); |
| vgpu_vreg_t(vgpu, PIPE_DATA_M1(dev_priv, TRANSCODER_A)) |= 0x5b425e; |
| vgpu_vreg_t(vgpu, PIPE_DATA_N1(dev_priv, TRANSCODER_A)) = 0x800000; |
| vgpu_vreg_t(vgpu, PIPE_LINK_M1(dev_priv, TRANSCODER_A)) = 0x3cd6e; |
| vgpu_vreg_t(vgpu, PIPE_LINK_N1(dev_priv, TRANSCODER_A)) = 0x80000; |
| |
| /* Enable per-DDI/PORT vreg */ |
| if (intel_vgpu_has_monitor_on_port(vgpu, PORT_A)) { |
| vgpu_vreg_t(vgpu, BXT_P_CR_GT_DISP_PWRON) |= BIT(1); |
| vgpu_vreg_t(vgpu, BXT_PORT_CL1CM_DW0(DPIO_PHY1)) |= |
| PHY_POWER_GOOD; |
| vgpu_vreg_t(vgpu, BXT_PHY_CTL_FAMILY(DPIO_PHY1)) |= |
| BIT(30); |
| vgpu_vreg_t(vgpu, BXT_PHY_CTL(PORT_A)) |= |
| BXT_PHY_LANE_ENABLED; |
| vgpu_vreg_t(vgpu, BXT_PHY_CTL(PORT_A)) &= |
| ~(BXT_PHY_CMNLANE_POWERDOWN_ACK | |
| BXT_PHY_LANE_POWERDOWN_ACK); |
| vgpu_vreg_t(vgpu, BXT_PORT_PLL_ENABLE(PORT_A)) |= |
| (PORT_PLL_POWER_STATE | PORT_PLL_POWER_ENABLE | |
| PORT_PLL_REF_SEL | PORT_PLL_LOCK | |
| PORT_PLL_ENABLE); |
| vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_A)) |= |
| (DDI_BUF_CTL_ENABLE | DDI_INIT_DISPLAY_DETECTED); |
| vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_A)) &= |
| ~DDI_BUF_IS_IDLE; |
| vgpu_vreg_t(vgpu, |
| TRANS_DDI_FUNC_CTL(dev_priv, TRANSCODER_EDP)) |= |
| (TRANS_DDI_BPC_8 | TRANS_DDI_MODE_SELECT_DP_SST | |
| TRANS_DDI_FUNC_ENABLE); |
| vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) |= |
| PORTA_HOTPLUG_ENABLE; |
| vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) |= |
| GEN8_DE_PORT_HOTPLUG(HPD_PORT_A); |
| } |
| |
| if (intel_vgpu_has_monitor_on_port(vgpu, PORT_B)) { |
| vgpu_vreg_t(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDIB_DETECTED; |
| vgpu_vreg_t(vgpu, BXT_P_CR_GT_DISP_PWRON) |= BIT(0); |
| vgpu_vreg_t(vgpu, BXT_PORT_CL1CM_DW0(DPIO_PHY0)) |= |
| PHY_POWER_GOOD; |
| vgpu_vreg_t(vgpu, BXT_PHY_CTL_FAMILY(DPIO_PHY0)) |= |
| BIT(30); |
| vgpu_vreg_t(vgpu, BXT_PHY_CTL(PORT_B)) |= |
| BXT_PHY_LANE_ENABLED; |
| vgpu_vreg_t(vgpu, BXT_PHY_CTL(PORT_B)) &= |
| ~(BXT_PHY_CMNLANE_POWERDOWN_ACK | |
| BXT_PHY_LANE_POWERDOWN_ACK); |
| vgpu_vreg_t(vgpu, BXT_PORT_PLL_ENABLE(PORT_B)) |= |
| (PORT_PLL_POWER_STATE | PORT_PLL_POWER_ENABLE | |
| PORT_PLL_REF_SEL | PORT_PLL_LOCK | |
| PORT_PLL_ENABLE); |
| vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_B)) |= |
| DDI_BUF_CTL_ENABLE; |
| vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_B)) &= |
| ~DDI_BUF_IS_IDLE; |
| vgpu_vreg_t(vgpu, |
| TRANS_DDI_FUNC_CTL(dev_priv, TRANSCODER_A)) |= |
| (TRANS_DDI_BPC_8 | TRANS_DDI_MODE_SELECT_DP_SST | |
| (PORT_B << TRANS_DDI_PORT_SHIFT) | |
| TRANS_DDI_FUNC_ENABLE); |
| vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) |= |
| PORTB_HOTPLUG_ENABLE; |
| vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) |= |
| GEN8_DE_PORT_HOTPLUG(HPD_PORT_B); |
| } |
| |
| if (intel_vgpu_has_monitor_on_port(vgpu, PORT_C)) { |
| vgpu_vreg_t(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDIC_DETECTED; |
| vgpu_vreg_t(vgpu, BXT_P_CR_GT_DISP_PWRON) |= BIT(0); |
| vgpu_vreg_t(vgpu, BXT_PORT_CL1CM_DW0(DPIO_PHY0)) |= |
| PHY_POWER_GOOD; |
| vgpu_vreg_t(vgpu, BXT_PHY_CTL_FAMILY(DPIO_PHY0)) |= |
| BIT(30); |
| vgpu_vreg_t(vgpu, BXT_PHY_CTL(PORT_C)) |= |
| BXT_PHY_LANE_ENABLED; |
| vgpu_vreg_t(vgpu, BXT_PHY_CTL(PORT_C)) &= |
| ~(BXT_PHY_CMNLANE_POWERDOWN_ACK | |
| BXT_PHY_LANE_POWERDOWN_ACK); |
| vgpu_vreg_t(vgpu, BXT_PORT_PLL_ENABLE(PORT_C)) |= |
| (PORT_PLL_POWER_STATE | PORT_PLL_POWER_ENABLE | |
| PORT_PLL_REF_SEL | PORT_PLL_LOCK | |
| PORT_PLL_ENABLE); |
| vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_C)) |= |
| DDI_BUF_CTL_ENABLE; |
| vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_C)) &= |
| ~DDI_BUF_IS_IDLE; |
| vgpu_vreg_t(vgpu, |
| TRANS_DDI_FUNC_CTL(dev_priv, TRANSCODER_A)) |= |
| (TRANS_DDI_BPC_8 | TRANS_DDI_MODE_SELECT_DP_SST | |
| (PORT_B << TRANS_DDI_PORT_SHIFT) | |
| TRANS_DDI_FUNC_ENABLE); |
| vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) |= |
| PORTC_HOTPLUG_ENABLE; |
| vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) |= |
| GEN8_DE_PORT_HOTPLUG(HPD_PORT_C); |
| } |
| |
| return; |
| } |
| |
| vgpu_vreg_t(vgpu, SDEISR) &= ~(SDE_PORTB_HOTPLUG_CPT | |
| SDE_PORTC_HOTPLUG_CPT | |
| SDE_PORTD_HOTPLUG_CPT); |
| |
| if (IS_SKYLAKE(dev_priv) || |
| IS_KABYLAKE(dev_priv) || |
| IS_COFFEELAKE(dev_priv) || |
| IS_COMETLAKE(dev_priv)) { |
| vgpu_vreg_t(vgpu, SDEISR) &= ~(SDE_PORTA_HOTPLUG_SPT | |
| SDE_PORTE_HOTPLUG_SPT); |
| vgpu_vreg_t(vgpu, SKL_FUSE_STATUS) |= |
| SKL_FUSE_DOWNLOAD_STATUS | |
| SKL_FUSE_PG_DIST_STATUS(SKL_PG0) | |
| SKL_FUSE_PG_DIST_STATUS(SKL_PG1) | |
| SKL_FUSE_PG_DIST_STATUS(SKL_PG2); |
| /* |
| * Only 1 PIPE enabled in current vGPU display and PIPE_A is |
| * tied to TRANSCODER_A in HW, so it's safe to assume PIPE_A, |
| * TRANSCODER_A can be enabled. PORT_x depends on the input of |
| * setup_virtual_dp_monitor, we can bind DPLL0 to any PORT_x |
| * so we fixed to DPLL0 here. |
| * Setup DPLL0: DP link clk 1620 MHz, non SSC, DP Mode |
| */ |
| vgpu_vreg_t(vgpu, DPLL_CTRL1) = |
| DPLL_CTRL1_OVERRIDE(DPLL_ID_SKL_DPLL0); |
| vgpu_vreg_t(vgpu, DPLL_CTRL1) |= |
| DPLL_CTRL1_LINK_RATE(DPLL_CTRL1_LINK_RATE_1620, DPLL_ID_SKL_DPLL0); |
| vgpu_vreg_t(vgpu, LCPLL1_CTL) = |
| LCPLL_PLL_ENABLE | LCPLL_PLL_LOCK; |
| vgpu_vreg_t(vgpu, DPLL_STATUS) = DPLL_LOCK(DPLL_ID_SKL_DPLL0); |
| /* |
| * Golden M/N are calculated based on: |
| * 24 bpp, 4 lanes, 154000 pixel clk (from virtual EDID), |
| * DP link clk 1620 MHz and non-constant_n. |
| * TODO: calculate DP link symbol clk and stream clk m/n. |
| */ |
| vgpu_vreg_t(vgpu, PIPE_DATA_M1(dev_priv, TRANSCODER_A)) = TU_SIZE(64); |
| vgpu_vreg_t(vgpu, PIPE_DATA_M1(dev_priv, TRANSCODER_A)) |= 0x5b425e; |
| vgpu_vreg_t(vgpu, PIPE_DATA_N1(dev_priv, TRANSCODER_A)) = 0x800000; |
| vgpu_vreg_t(vgpu, PIPE_LINK_M1(dev_priv, TRANSCODER_A)) = 0x3cd6e; |
| vgpu_vreg_t(vgpu, PIPE_LINK_N1(dev_priv, TRANSCODER_A)) = 0x80000; |
| } |
| |
| if (intel_vgpu_has_monitor_on_port(vgpu, PORT_B)) { |
| vgpu_vreg_t(vgpu, DPLL_CTRL2) &= |
| ~DPLL_CTRL2_DDI_CLK_OFF(PORT_B); |
| vgpu_vreg_t(vgpu, DPLL_CTRL2) |= |
| DPLL_CTRL2_DDI_CLK_SEL(DPLL_ID_SKL_DPLL0, PORT_B); |
| vgpu_vreg_t(vgpu, DPLL_CTRL2) |= |
| DPLL_CTRL2_DDI_SEL_OVERRIDE(PORT_B); |
| vgpu_vreg_t(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDIB_DETECTED; |
| vgpu_vreg_t(vgpu, TRANS_DDI_FUNC_CTL(dev_priv, TRANSCODER_A)) &= |
| ~(TRANS_DDI_BPC_MASK | TRANS_DDI_MODE_SELECT_MASK | |
| TRANS_DDI_PORT_MASK); |
| vgpu_vreg_t(vgpu, TRANS_DDI_FUNC_CTL(dev_priv, TRANSCODER_A)) |= |
| (TRANS_DDI_BPC_8 | TRANS_DDI_MODE_SELECT_DP_SST | |
| (PORT_B << TRANS_DDI_PORT_SHIFT) | |
| TRANS_DDI_FUNC_ENABLE); |
| if (IS_BROADWELL(dev_priv)) { |
| vgpu_vreg_t(vgpu, PORT_CLK_SEL(PORT_B)) &= |
| ~PORT_CLK_SEL_MASK; |
| vgpu_vreg_t(vgpu, PORT_CLK_SEL(PORT_B)) |= |
| PORT_CLK_SEL_LCPLL_810; |
| } |
| vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_B)) |= DDI_BUF_CTL_ENABLE; |
| vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_B)) &= ~DDI_BUF_IS_IDLE; |
| vgpu_vreg_t(vgpu, SDEISR) |= SDE_PORTB_HOTPLUG_CPT; |
| } |
| |
| if (intel_vgpu_has_monitor_on_port(vgpu, PORT_C)) { |
| vgpu_vreg_t(vgpu, DPLL_CTRL2) &= |
| ~DPLL_CTRL2_DDI_CLK_OFF(PORT_C); |
| vgpu_vreg_t(vgpu, DPLL_CTRL2) |= |
| DPLL_CTRL2_DDI_CLK_SEL(DPLL_ID_SKL_DPLL0, PORT_C); |
| vgpu_vreg_t(vgpu, DPLL_CTRL2) |= |
| DPLL_CTRL2_DDI_SEL_OVERRIDE(PORT_C); |
| vgpu_vreg_t(vgpu, SDEISR) |= SDE_PORTC_HOTPLUG_CPT; |
| vgpu_vreg_t(vgpu, TRANS_DDI_FUNC_CTL(dev_priv, TRANSCODER_A)) &= |
| ~(TRANS_DDI_BPC_MASK | TRANS_DDI_MODE_SELECT_MASK | |
| TRANS_DDI_PORT_MASK); |
| vgpu_vreg_t(vgpu, TRANS_DDI_FUNC_CTL(dev_priv, TRANSCODER_A)) |= |
| (TRANS_DDI_BPC_8 | TRANS_DDI_MODE_SELECT_DP_SST | |
| (PORT_C << TRANS_DDI_PORT_SHIFT) | |
| TRANS_DDI_FUNC_ENABLE); |
| if (IS_BROADWELL(dev_priv)) { |
| vgpu_vreg_t(vgpu, PORT_CLK_SEL(PORT_C)) &= |
| ~PORT_CLK_SEL_MASK; |
| vgpu_vreg_t(vgpu, PORT_CLK_SEL(PORT_C)) |= |
| PORT_CLK_SEL_LCPLL_810; |
| } |
| vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_C)) |= DDI_BUF_CTL_ENABLE; |
| vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_C)) &= ~DDI_BUF_IS_IDLE; |
| vgpu_vreg_t(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDIC_DETECTED; |
| } |
| |
| if (intel_vgpu_has_monitor_on_port(vgpu, PORT_D)) { |
| vgpu_vreg_t(vgpu, DPLL_CTRL2) &= |
| ~DPLL_CTRL2_DDI_CLK_OFF(PORT_D); |
| vgpu_vreg_t(vgpu, DPLL_CTRL2) |= |
| DPLL_CTRL2_DDI_CLK_SEL(DPLL_ID_SKL_DPLL0, PORT_D); |
| vgpu_vreg_t(vgpu, DPLL_CTRL2) |= |
| DPLL_CTRL2_DDI_SEL_OVERRIDE(PORT_D); |
| vgpu_vreg_t(vgpu, SDEISR) |= SDE_PORTD_HOTPLUG_CPT; |
| vgpu_vreg_t(vgpu, TRANS_DDI_FUNC_CTL(dev_priv, TRANSCODER_A)) &= |
| ~(TRANS_DDI_BPC_MASK | TRANS_DDI_MODE_SELECT_MASK | |
| TRANS_DDI_PORT_MASK); |
| vgpu_vreg_t(vgpu, TRANS_DDI_FUNC_CTL(dev_priv, TRANSCODER_A)) |= |
| (TRANS_DDI_BPC_8 | TRANS_DDI_MODE_SELECT_DP_SST | |
| (PORT_D << TRANS_DDI_PORT_SHIFT) | |
| TRANS_DDI_FUNC_ENABLE); |
| if (IS_BROADWELL(dev_priv)) { |
| vgpu_vreg_t(vgpu, PORT_CLK_SEL(PORT_D)) &= |
| ~PORT_CLK_SEL_MASK; |
| vgpu_vreg_t(vgpu, PORT_CLK_SEL(PORT_D)) |= |
| PORT_CLK_SEL_LCPLL_810; |
| } |
| vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_D)) |= DDI_BUF_CTL_ENABLE; |
| vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_D)) &= ~DDI_BUF_IS_IDLE; |
| vgpu_vreg_t(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDID_DETECTED; |
| } |
| |
| if ((IS_SKYLAKE(dev_priv) || |
| IS_KABYLAKE(dev_priv) || |
| IS_COFFEELAKE(dev_priv) || |
| IS_COMETLAKE(dev_priv)) && |
| intel_vgpu_has_monitor_on_port(vgpu, PORT_E)) { |
| vgpu_vreg_t(vgpu, SDEISR) |= SDE_PORTE_HOTPLUG_SPT; |
| } |
| |
| if (intel_vgpu_has_monitor_on_port(vgpu, PORT_A)) { |
| if (IS_BROADWELL(dev_priv)) |
| vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) |= |
| GEN8_DE_PORT_HOTPLUG(HPD_PORT_A); |
| else |
| vgpu_vreg_t(vgpu, SDEISR) |= SDE_PORTA_HOTPLUG_SPT; |
| |
| vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_A)) |= DDI_INIT_DISPLAY_DETECTED; |
| } |
| |
| /* Clear host CRT status, so guest couldn't detect this host CRT. */ |
| if (IS_BROADWELL(dev_priv)) |
| vgpu_vreg_t(vgpu, PCH_ADPA) &= ~ADPA_CRT_HOTPLUG_MONITOR_MASK; |
| |
| /* Disable Primary/Sprite/Cursor plane */ |
| for_each_pipe(dev_priv, pipe) { |
| vgpu_vreg_t(vgpu, DSPCNTR(dev_priv, pipe)) &= ~DISP_ENABLE; |
| vgpu_vreg_t(vgpu, SPRCTL(pipe)) &= ~SPRITE_ENABLE; |
| vgpu_vreg_t(vgpu, CURCNTR(dev_priv, pipe)) &= ~MCURSOR_MODE_MASK; |
| vgpu_vreg_t(vgpu, CURCNTR(dev_priv, pipe)) |= MCURSOR_MODE_DISABLE; |
| } |
| |
| vgpu_vreg_t(vgpu, TRANSCONF(dev_priv, TRANSCODER_A)) |= TRANSCONF_ENABLE; |
| } |
| |
| static void clean_virtual_dp_monitor(struct intel_vgpu *vgpu, int port_num) |
| { |
| struct intel_vgpu_port *port = intel_vgpu_port(vgpu, port_num); |
| |
| kfree(port->edid); |
| port->edid = NULL; |
| |
| kfree(port->dpcd); |
| port->dpcd = NULL; |
| } |
| |
| static enum hrtimer_restart vblank_timer_fn(struct hrtimer *data) |
| { |
| struct intel_vgpu_vblank_timer *vblank_timer; |
| struct intel_vgpu *vgpu; |
| |
| vblank_timer = container_of(data, struct intel_vgpu_vblank_timer, timer); |
| vgpu = container_of(vblank_timer, struct intel_vgpu, vblank_timer); |
| |
| /* Set vblank emulation request per-vGPU bit */ |
| intel_gvt_request_service(vgpu->gvt, |
| INTEL_GVT_REQUEST_EMULATE_VBLANK + vgpu->id); |
| hrtimer_add_expires_ns(&vblank_timer->timer, vblank_timer->period); |
| return HRTIMER_RESTART; |
| } |
| |
| static int setup_virtual_dp_monitor(struct intel_vgpu *vgpu, int port_num, |
| int type, unsigned int resolution) |
| { |
| struct drm_i915_private *i915 = vgpu->gvt->gt->i915; |
| struct intel_vgpu_port *port = intel_vgpu_port(vgpu, port_num); |
| struct intel_vgpu_vblank_timer *vblank_timer = &vgpu->vblank_timer; |
| |
| if (drm_WARN_ON(&i915->drm, resolution >= GVT_EDID_NUM)) |
| return -EINVAL; |
| |
| port->edid = kzalloc(sizeof(*(port->edid)), GFP_KERNEL); |
| if (!port->edid) |
| return -ENOMEM; |
| |
| port->dpcd = kzalloc(sizeof(*(port->dpcd)), GFP_KERNEL); |
| if (!port->dpcd) { |
| kfree(port->edid); |
| return -ENOMEM; |
| } |
| |
| memcpy(port->edid->edid_block, virtual_dp_monitor_edid[resolution], |
| EDID_SIZE); |
| port->edid->data_valid = true; |
| |
| memcpy(port->dpcd->data, dpcd_fix_data, DPCD_HEADER_SIZE); |
| port->dpcd->data_valid = true; |
| port->dpcd->data[DPCD_SINK_COUNT] = 0x1; |
| port->type = type; |
| port->id = resolution; |
| port->vrefresh_k = GVT_DEFAULT_REFRESH_RATE * MSEC_PER_SEC; |
| vgpu->display.port_num = port_num; |
| |
| /* Init hrtimer based on default refresh rate */ |
| hrtimer_init(&vblank_timer->timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS); |
| vblank_timer->timer.function = vblank_timer_fn; |
| vblank_timer->vrefresh_k = port->vrefresh_k; |
| vblank_timer->period = DIV64_U64_ROUND_CLOSEST(NSEC_PER_SEC * MSEC_PER_SEC, vblank_timer->vrefresh_k); |
| |
| emulate_monitor_status_change(vgpu); |
| |
| return 0; |
| } |
| |
| /** |
| * vgpu_update_vblank_emulation - Update per-vGPU vblank_timer |
| * @vgpu: vGPU operated |
| * @turnon: Turn ON/OFF vblank_timer |
| * |
| * This function is used to turn on/off or update the per-vGPU vblank_timer |
| * when TRANSCONF is enabled or disabled. vblank_timer period is also updated |
| * if guest changed the refresh rate. |
| * |
| */ |
| void vgpu_update_vblank_emulation(struct intel_vgpu *vgpu, bool turnon) |
| { |
| struct intel_vgpu_vblank_timer *vblank_timer = &vgpu->vblank_timer; |
| struct intel_vgpu_port *port = |
| intel_vgpu_port(vgpu, vgpu->display.port_num); |
| |
| if (turnon) { |
| /* |
| * Skip the re-enable if already active and vrefresh unchanged. |
| * Otherwise, stop timer if already active and restart with new |
| * period. |
| */ |
| if (vblank_timer->vrefresh_k != port->vrefresh_k || |
| !hrtimer_active(&vblank_timer->timer)) { |
| /* Stop timer before start with new period if active */ |
| if (hrtimer_active(&vblank_timer->timer)) |
| hrtimer_cancel(&vblank_timer->timer); |
| |
| /* Make sure new refresh rate updated to timer period */ |
| vblank_timer->vrefresh_k = port->vrefresh_k; |
| vblank_timer->period = DIV64_U64_ROUND_CLOSEST(NSEC_PER_SEC * MSEC_PER_SEC, vblank_timer->vrefresh_k); |
| hrtimer_start(&vblank_timer->timer, |
| ktime_add_ns(ktime_get(), vblank_timer->period), |
| HRTIMER_MODE_ABS); |
| } |
| } else { |
| /* Caller request to stop vblank */ |
| hrtimer_cancel(&vblank_timer->timer); |
| } |
| } |
| |
| static void emulate_vblank_on_pipe(struct intel_vgpu *vgpu, int pipe) |
| { |
| struct drm_i915_private *dev_priv = vgpu->gvt->gt->i915; |
| struct intel_vgpu_irq *irq = &vgpu->irq; |
| int vblank_event[] = { |
| [PIPE_A] = PIPE_A_VBLANK, |
| [PIPE_B] = PIPE_B_VBLANK, |
| [PIPE_C] = PIPE_C_VBLANK, |
| }; |
| int event; |
| |
| if (pipe < PIPE_A || pipe > PIPE_C) |
| return; |
| |
| for_each_set_bit(event, irq->flip_done_event[pipe], |
| INTEL_GVT_EVENT_MAX) { |
| clear_bit(event, irq->flip_done_event[pipe]); |
| if (!pipe_is_enabled(vgpu, pipe)) |
| continue; |
| |
| intel_vgpu_trigger_virtual_event(vgpu, event); |
| } |
| |
| if (pipe_is_enabled(vgpu, pipe)) { |
| vgpu_vreg_t(vgpu, PIPE_FRMCOUNT_G4X(dev_priv, pipe))++; |
| intel_vgpu_trigger_virtual_event(vgpu, vblank_event[pipe]); |
| } |
| } |
| |
| void intel_vgpu_emulate_vblank(struct intel_vgpu *vgpu) |
| { |
| int pipe; |
| |
| mutex_lock(&vgpu->vgpu_lock); |
| for_each_pipe(vgpu->gvt->gt->i915, pipe) |
| emulate_vblank_on_pipe(vgpu, pipe); |
| mutex_unlock(&vgpu->vgpu_lock); |
| } |
| |
| /** |
| * intel_vgpu_emulate_hotplug - trigger hotplug event for vGPU |
| * @vgpu: a vGPU |
| * @connected: link state |
| * |
| * This function is used to trigger hotplug interrupt for vGPU |
| * |
| */ |
| void intel_vgpu_emulate_hotplug(struct intel_vgpu *vgpu, bool connected) |
| { |
| struct drm_i915_private *i915 = vgpu->gvt->gt->i915; |
| |
| /* TODO: add more platforms support */ |
| if (IS_SKYLAKE(i915) || |
| IS_KABYLAKE(i915) || |
| IS_COFFEELAKE(i915) || |
| IS_COMETLAKE(i915)) { |
| if (connected) { |
| vgpu_vreg_t(vgpu, SFUSE_STRAP) |= |
| SFUSE_STRAP_DDID_DETECTED; |
| vgpu_vreg_t(vgpu, SDEISR) |= SDE_PORTD_HOTPLUG_CPT; |
| } else { |
| vgpu_vreg_t(vgpu, SFUSE_STRAP) &= |
| ~SFUSE_STRAP_DDID_DETECTED; |
| vgpu_vreg_t(vgpu, SDEISR) &= ~SDE_PORTD_HOTPLUG_CPT; |
| } |
| vgpu_vreg_t(vgpu, SDEIIR) |= SDE_PORTD_HOTPLUG_CPT; |
| vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) |= |
| PORTD_HOTPLUG_STATUS_MASK; |
| intel_vgpu_trigger_virtual_event(vgpu, DP_D_HOTPLUG); |
| } else if (IS_BROXTON(i915)) { |
| if (intel_vgpu_has_monitor_on_port(vgpu, PORT_A)) { |
| if (connected) { |
| vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) |= |
| GEN8_DE_PORT_HOTPLUG(HPD_PORT_A); |
| } else { |
| vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) &= |
| ~GEN8_DE_PORT_HOTPLUG(HPD_PORT_A); |
| } |
| vgpu_vreg_t(vgpu, GEN8_DE_PORT_IIR) |= |
| GEN8_DE_PORT_HOTPLUG(HPD_PORT_A); |
| vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) &= |
| ~PORTA_HOTPLUG_STATUS_MASK; |
| vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) |= |
| PORTA_HOTPLUG_LONG_DETECT; |
| intel_vgpu_trigger_virtual_event(vgpu, DP_A_HOTPLUG); |
| } |
| if (intel_vgpu_has_monitor_on_port(vgpu, PORT_B)) { |
| if (connected) { |
| vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) |= |
| GEN8_DE_PORT_HOTPLUG(HPD_PORT_B); |
| vgpu_vreg_t(vgpu, SFUSE_STRAP) |= |
| SFUSE_STRAP_DDIB_DETECTED; |
| } else { |
| vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) &= |
| ~GEN8_DE_PORT_HOTPLUG(HPD_PORT_B); |
| vgpu_vreg_t(vgpu, SFUSE_STRAP) &= |
| ~SFUSE_STRAP_DDIB_DETECTED; |
| } |
| vgpu_vreg_t(vgpu, GEN8_DE_PORT_IIR) |= |
| GEN8_DE_PORT_HOTPLUG(HPD_PORT_B); |
| vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) &= |
| ~PORTB_HOTPLUG_STATUS_MASK; |
| vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) |= |
| PORTB_HOTPLUG_LONG_DETECT; |
| intel_vgpu_trigger_virtual_event(vgpu, DP_B_HOTPLUG); |
| } |
| if (intel_vgpu_has_monitor_on_port(vgpu, PORT_C)) { |
| if (connected) { |
| vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) |= |
| GEN8_DE_PORT_HOTPLUG(HPD_PORT_C); |
| vgpu_vreg_t(vgpu, SFUSE_STRAP) |= |
| SFUSE_STRAP_DDIC_DETECTED; |
| } else { |
| vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) &= |
| ~GEN8_DE_PORT_HOTPLUG(HPD_PORT_C); |
| vgpu_vreg_t(vgpu, SFUSE_STRAP) &= |
| ~SFUSE_STRAP_DDIC_DETECTED; |
| } |
| vgpu_vreg_t(vgpu, GEN8_DE_PORT_IIR) |= |
| GEN8_DE_PORT_HOTPLUG(HPD_PORT_C); |
| vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) &= |
| ~PORTC_HOTPLUG_STATUS_MASK; |
| vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) |= |
| PORTC_HOTPLUG_LONG_DETECT; |
| intel_vgpu_trigger_virtual_event(vgpu, DP_C_HOTPLUG); |
| } |
| } |
| } |
| |
| /** |
| * intel_vgpu_clean_display - clean vGPU virtual display emulation |
| * @vgpu: a vGPU |
| * |
| * This function is used to clean vGPU virtual display emulation stuffs |
| * |
| */ |
| void intel_vgpu_clean_display(struct intel_vgpu *vgpu) |
| { |
| struct drm_i915_private *dev_priv = vgpu->gvt->gt->i915; |
| |
| if (IS_SKYLAKE(dev_priv) || |
| IS_KABYLAKE(dev_priv) || |
| IS_COFFEELAKE(dev_priv) || |
| IS_COMETLAKE(dev_priv)) |
| clean_virtual_dp_monitor(vgpu, PORT_D); |
| else |
| clean_virtual_dp_monitor(vgpu, PORT_B); |
| |
| vgpu_update_vblank_emulation(vgpu, false); |
| } |
| |
| /** |
| * intel_vgpu_init_display- initialize vGPU virtual display emulation |
| * @vgpu: a vGPU |
| * @resolution: resolution index for intel_vgpu_edid |
| * |
| * This function is used to initialize vGPU virtual display emulation stuffs |
| * |
| * Returns: |
| * Zero on success, negative error code if failed. |
| * |
| */ |
| int intel_vgpu_init_display(struct intel_vgpu *vgpu, u64 resolution) |
| { |
| struct drm_i915_private *dev_priv = vgpu->gvt->gt->i915; |
| |
| intel_vgpu_init_i2c_edid(vgpu); |
| |
| if (IS_SKYLAKE(dev_priv) || |
| IS_KABYLAKE(dev_priv) || |
| IS_COFFEELAKE(dev_priv) || |
| IS_COMETLAKE(dev_priv)) |
| return setup_virtual_dp_monitor(vgpu, PORT_D, GVT_DP_D, |
| resolution); |
| else |
| return setup_virtual_dp_monitor(vgpu, PORT_B, GVT_DP_B, |
| resolution); |
| } |
| |
| /** |
| * intel_vgpu_reset_display- reset vGPU virtual display emulation |
| * @vgpu: a vGPU |
| * |
| * This function is used to reset vGPU virtual display emulation stuffs |
| * |
| */ |
| void intel_vgpu_reset_display(struct intel_vgpu *vgpu) |
| { |
| emulate_monitor_status_change(vgpu); |
| } |
