| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| |
| #include <acpi/acpi.h> |
| #include <assert.h> |
| #include <bootmode.h> |
| #include <console/console.h> |
| #include <device/mmio.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| #include <drivers/intel/gma/i915.h> |
| #include <drivers/intel/gma/libgfxinit.h> |
| #include <drivers/intel/gma/opregion.h> |
| #include <intelblocks/cfg.h> |
| #include <intelblocks/graphics.h> |
| #include <fsp/graphics.h> |
| #include <soc/pci_devs.h> |
| #include <types.h> |
| |
| /* Display Type: |
| * 0 - only internal display aka eDP attached |
| * 1 - only external display aka HDMI/USB-C attached |
| * 2 - dual display aka both internal and external display attached |
| */ |
| enum display_type { |
| INTERNAL_DISPLAY_ONLY, |
| EXTERNAL_DISPLAY_ONLY, |
| DUAL_DISPLAY, |
| }; |
| |
| #define GFX_MBUS_CTL 0x4438C |
| #define GFX_MBUS_SEL(x) (GFX_MBUS_CTL + (x)) |
| #define GFX_MBUS_JOIN BIT(31) |
| #define GFX_MBUS_HASHING_MODE BIT(30) |
| #define GFX_MBUS_JOIN_PIPE_SEL (BIT(28) | BIT(27) | BIT(26)) |
| |
| /* SoC Overrides */ |
| __weak void graphics_soc_panel_init(struct device *dev) |
| { |
| /* |
| * User needs to implement SoC override in case wishes |
| * to perform certain specific graphics initialization |
| */ |
| } |
| |
| __weak const struct i915_gpu_controller_info * |
| intel_igd_get_controller_info(const struct device *device) |
| { |
| return NULL; |
| } |
| |
| static uint32_t graphics_get_ddi_func_ctrl(unsigned long reg) |
| { |
| uint32_t ddi_func_ctrl = graphics_gtt_read(reg); |
| ddi_func_ctrl &= TRANS_DDI_PORT_MASK; |
| |
| return ddi_func_ctrl; |
| } |
| |
| /* |
| * Transcoders contain the timing generators for eDP, DP, and HDMI interfaces. |
| * Intel transcoders are based on Quick Sync Video, which offloads video |
| * encoding and decoding tasks from the CPU to the GPU. |
| * |
| * On Intel silicon, there are four display pipes (DDI-A to DDI-D) that support |
| * blending, color adjustments, scaling, and dithering. |
| * |
| * From the display block diagram perspective, the front end of the display |
| * contains the pipes. The pipes connect to the transcoder. The transcoder |
| * (except for wireless) connects to the DDIs to drive the IO/PHY. |
| * |
| * This logic checks if the DDI-A port is attached to the transcoder and |
| * enabled (bit 27). Traditionally, the on-board display (eDP) is attached to DDI-A. |
| * If the above conditions is met, then the on-board display is present and enabled. |
| * |
| * On platforms without an on-board display (i.e., value at bits 27-30 is between 2-9), |
| * meaning that DDI-A (eDP) is not enabled. |
| * |
| * Additionally, if bits 27-30 are all set to 0, this means that no DDI ports |
| * are enabled, and there is no display. |
| * |
| * Consider external display is present and enabled, if eDP/DDI-A is not enabled |
| * and transcoder is attached to any DDI port (bits 27-30 are not zero). |
| */ |
| static enum display_type get_external_display_status(void) |
| { |
| /* Read the transcoder register for DDI-A (eDP) */ |
| uint32_t ddi_a_func_ctrl = graphics_get_ddi_func_ctrl(TRANS_DDI_FUNC_CTL_A); |
| /* Read the transcoder register for DDI-B (HDMI) */ |
| uint32_t ddi_b_func_ctrl = graphics_get_ddi_func_ctrl(TRANS_DDI_FUNC_CTL_B); |
| |
| /* |
| * Check if transcoder is none or connected to DDI-A port (aka eDP). |
| * Report no external display in both cases. |
| */ |
| if (ddi_a_func_ctrl == TRANS_DDI_PORT_NONE) { |
| return INTERNAL_DISPLAY_ONLY; |
| } else { |
| if (ddi_a_func_ctrl == TRANS_DDI_SELECT_PORT(PORT_A) && |
| (ddi_b_func_ctrl == TRANS_DDI_SELECT_PORT(PORT_B) |
| #if CONFIG(INTEL_GMA_VERSION_2) |
| || ddi_b_func_ctrl == TRANS_DDI_SELECT_PORT(PORT_USB_C1) |
| || ddi_b_func_ctrl == TRANS_DDI_SELECT_PORT(PORT_USB_C2) |
| || ddi_b_func_ctrl == TRANS_DDI_SELECT_PORT(PORT_USB_C3) |
| || ddi_b_func_ctrl == TRANS_DDI_SELECT_PORT(PORT_USB_C4) |
| #endif |
| )) { |
| /* |
| * Dual display detected: both DDI-A(eDP) and |
| * DDI-B(HDMI) pipes are active |
| */ |
| return DUAL_DISPLAY; |
| } else { |
| if (ddi_a_func_ctrl == TRANS_DDI_SELECT_PORT(PORT_A)) |
| return INTERNAL_DISPLAY_ONLY; |
| else |
| return EXTERNAL_DISPLAY_ONLY; |
| } |
| } |
| } |
| |
| /* Check and report if an external display is attached */ |
| int fsp_soc_report_external_display(void) |
| { |
| return graphics_get_framebuffer_address() && get_external_display_status(); |
| } |
| |
| static void gma_init(struct device *const dev) |
| { |
| intel_gma_init_igd_opregion(); |
| |
| /* SoC specific panel init/configuration. |
| If FSP has already run/configured the IGD, we can assume the |
| panel/backlight control have already been set up sufficiently |
| and that we shouldn't attempt to reconfigure things. */ |
| if (!CONFIG(RUN_FSP_GOP)) |
| graphics_soc_panel_init(dev); |
| |
| if (CONFIG(SOC_INTEL_CONFIGURE_DDI_A_4_LANES) && !acpi_is_wakeup_s3()) { |
| const u32 ddi_buf_ctl = graphics_gtt_read(DDI_BUF_CTL_A); |
| /* Only program if the buffer is not enabled yet. */ |
| if (!(ddi_buf_ctl & DDI_BUF_CTL_ENABLE)) |
| graphics_gtt_write(DDI_BUF_CTL_A, ddi_buf_ctl | DDI_A_4_LANES); |
| } |
| |
| /* |
| * GFX PEIM module inside FSP binary is taking care of graphics |
| * initialization based on RUN_FSP_GOP Kconfig option and input |
| * VBT file. Need to report the framebuffer info after PCI enumeration. |
| * |
| * In case of non-FSP solution, SoC need to select another |
| * Kconfig to perform GFX initialization. |
| */ |
| if (CONFIG(RUN_FSP_GOP) && display_init_required()) { |
| const struct soc_intel_common_config *config = chip_get_common_soc_structure(); |
| fsp_report_framebuffer_info(graphics_get_framebuffer_address(), |
| config->panel_orientation); |
| return; |
| } |
| |
| if (!CONFIG(NO_GFX_INIT)) |
| pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER); |
| |
| if (CONFIG(MAINBOARD_USE_LIBGFXINIT)) { |
| if (!acpi_is_wakeup_s3() && display_init_required()) { |
| int lightup_ok; |
| gma_gfxinit(&lightup_ok); |
| gfx_set_init_done(lightup_ok); |
| } |
| } else { |
| /* Initialize PCI device, load/execute BIOS Option ROM */ |
| pci_dev_init(dev); |
| } |
| } |
| |
| static void gma_generate_ssdt(const struct device *device) |
| { |
| const struct i915_gpu_controller_info *gfx = intel_igd_get_controller_info(device); |
| |
| if (gfx) |
| drivers_intel_gma_displays_ssdt_generate(gfx); |
| } |
| |
| static int is_graphics_disabled(struct device *dev) |
| { |
| /* Check if Graphics PCI device is disabled */ |
| if (!dev || !dev->enabled) |
| return 1; |
| |
| return 0; |
| } |
| |
| static uintptr_t graphics_get_bar(struct device *dev, unsigned long index) |
| { |
| struct resource *gm_res; |
| |
| gm_res = probe_resource(dev, index); |
| if (!gm_res) |
| return 0; |
| |
| return gm_res->base; |
| } |
| |
| uintptr_t graphics_get_framebuffer_address(void) |
| { |
| uintptr_t memory_base; |
| struct device *dev = pcidev_path_on_root(SA_DEVFN_IGD); |
| |
| if (is_graphics_disabled(dev)) |
| return 0; |
| |
| memory_base = graphics_get_bar(dev, PCI_BASE_ADDRESS_2); |
| if (!memory_base) |
| die_with_post_code(POSTCODE_HW_INIT_FAILURE, |
| "Graphic memory bar2 is not programmed!"); |
| |
| memory_base += CONFIG_SOC_INTEL_GFX_FRAMEBUFFER_OFFSET; |
| |
| return memory_base; |
| } |
| |
| static uintptr_t graphics_get_gtt_base(void) |
| { |
| static uintptr_t gtt_base; |
| struct device *dev = pcidev_path_on_root(SA_DEVFN_IGD); |
| |
| if (is_graphics_disabled(dev)) |
| die("IGD is disabled!"); |
| /* |
| * GFX PCI config space offset 0x10 know as Graphics |
| * Translation Table Memory Mapped Range Address |
| * (GTTMMADR) |
| */ |
| if (!gtt_base) { |
| gtt_base = graphics_get_bar(dev, PCI_BASE_ADDRESS_0); |
| if (!gtt_base) |
| die_with_post_code(POSTCODE_HW_INIT_FAILURE, |
| "GTTMMADR is not programmed!"); |
| } |
| return gtt_base; |
| } |
| |
| uint32_t graphics_gtt_read(unsigned long reg) |
| { |
| return read32p(graphics_get_gtt_base() + reg); |
| } |
| |
| void graphics_gtt_write(unsigned long reg, uint32_t data) |
| { |
| write32p(graphics_get_gtt_base() + reg, data); |
| } |
| |
| void graphics_gtt_rmw(unsigned long reg, uint32_t andmask, uint32_t ormask) |
| { |
| uint32_t val = graphics_gtt_read(reg); |
| val &= andmask; |
| val |= ormask; |
| graphics_gtt_write(reg, val); |
| } |
| |
| static void graphics_dev_read_resources(struct device *dev) |
| { |
| pci_dev_read_resources(dev); |
| |
| if (CONFIG(SOC_INTEL_GFX_NON_PREFETCHABLE_MMIO)) { |
| struct resource *res_bar0 = find_resource(dev, PCI_BASE_ADDRESS_0); |
| if (res_bar0->flags & IORESOURCE_PREFETCH) |
| res_bar0->flags &= ~IORESOURCE_PREFETCH; |
| } |
| |
| /* |
| * If libhwbase static MMIO driver is used, IGD BAR 0 has to be set to |
| * CONFIG_GFX_GMA_DEFAULT_MMIO for the libgfxinit to operate properly. |
| */ |
| if (CONFIG(MAINBOARD_USE_LIBGFXINIT) && CONFIG(HWBASE_STATIC_MMIO)) { |
| struct resource *res_bar0 = find_resource(dev, PCI_BASE_ADDRESS_0); |
| res_bar0->base = CONFIG_GFX_GMA_DEFAULT_MMIO; |
| res_bar0->flags |= IORESOURCE_ASSIGNED; |
| pci_dev_set_resources(dev); |
| res_bar0->flags |= IORESOURCE_FIXED; |
| } |
| } |
| |
| static void graphics_join_mbus(void) |
| { |
| enum display_type type = get_external_display_status(); |
| uint32_t hashing_mode = 0; /* 2x2 */ |
| if (type == INTERNAL_DISPLAY_ONLY) { |
| hashing_mode = GFX_MBUS_HASHING_MODE; /* 1x4 */ |
| /* Only eDP pipes is joining the MBUS */ |
| graphics_gtt_rmw(GFX_MBUS_SEL(PIPE_A), PIPE_A, GFX_MBUS_JOIN | hashing_mode); |
| } else if (type == DUAL_DISPLAY) { |
| /* All pipes are joining the MBUS */ |
| graphics_gtt_rmw(GFX_MBUS_SEL(PIPE_A), PIPE_A, GFX_MBUS_JOIN | hashing_mode); |
| graphics_gtt_rmw(GFX_MBUS_SEL(PIPE_B), PIPE_B, GFX_MBUS_JOIN | hashing_mode); |
| graphics_gtt_rmw(GFX_MBUS_SEL(PIPE_C), PIPE_C, GFX_MBUS_JOIN | hashing_mode); |
| #if CONFIG(INTEL_GMA_VERSION_2) |
| graphics_gtt_rmw(GFX_MBUS_SEL(PIPE_D), PIPE_D, GFX_MBUS_JOIN | hashing_mode); |
| #endif |
| } else { |
| /* No pipe joins the MBUS */ |
| graphics_gtt_rmw(GFX_MBUS_CTL, GFX_MBUS_JOIN_PIPE_SEL, |
| GFX_MBUS_JOIN | hashing_mode); |
| } |
| } |
| |
| static void graphics_dev_final(struct device *dev) |
| { |
| pci_dev_request_bus_master(dev); |
| |
| /* |
| * Call function to join the MBUS if GFX PEIM module inside FSP |
| * binary is taking care of graphics initialization based on |
| * RUN_FSP_GOP config option. |
| * |
| * Skip FW joining the MBUS in case of non-FSP solution. |
| */ |
| if (CONFIG(RUN_FSP_GOP) && CONFIG(SOC_INTEL_GFX_MBUS_JOIN) && display_init_required()) |
| graphics_join_mbus(); |
| } |
| |
| const struct device_operations graphics_ops = { |
| .read_resources = graphics_dev_read_resources, |
| .set_resources = pci_dev_set_resources, |
| .enable_resources = pci_dev_enable_resources, |
| .init = gma_init, |
| .final = graphics_dev_final, |
| .ops_pci = &pci_dev_ops_pci, |
| #if CONFIG(HAVE_ACPI_TABLES) |
| .acpi_fill_ssdt = gma_generate_ssdt, |
| #endif |
| .scan_bus = scan_generic_bus, |
| }; |
| |
| static const unsigned short pci_device_ids[] = { |
| PCI_DID_INTEL_LNL_M_GT2, |
| PCI_DID_INTEL_RPL_U_GT1, |
| PCI_DID_INTEL_RPL_U_GT2, |
| PCI_DID_INTEL_RPL_U_GT3, |
| PCI_DID_INTEL_RPL_U_GT4, |
| PCI_DID_INTEL_RPL_U_GT5, |
| PCI_DID_INTEL_RPL_P_GT1, |
| PCI_DID_INTEL_RPL_P_GT2, |
| PCI_DID_INTEL_RPL_P_GT3, |
| PCI_DID_INTEL_RPL_P_GT4, |
| PCI_DID_INTEL_RPL_P_GT5, |
| PCI_DID_INTEL_MTL_M_GT2, |
| PCI_DID_INTEL_MTL_P_GT2_1, |
| PCI_DID_INTEL_MTL_P_GT2_2, |
| PCI_DID_INTEL_MTL_P_GT2_3, |
| PCI_DID_INTEL_MTL_P_GT2_4, |
| PCI_DID_INTEL_APL_IGD_HD_505, |
| PCI_DID_INTEL_APL_IGD_HD_500, |
| PCI_DID_INTEL_CNL_GT2_ULX_1, |
| PCI_DID_INTEL_CNL_GT2_ULX_2, |
| PCI_DID_INTEL_CNL_GT2_ULX_3, |
| PCI_DID_INTEL_CNL_GT2_ULX_4, |
| PCI_DID_INTEL_CNL_GT2_ULT_1, |
| PCI_DID_INTEL_CNL_GT2_ULT_2, |
| PCI_DID_INTEL_CNL_GT2_ULT_3, |
| PCI_DID_INTEL_CNL_GT2_ULT_4, |
| PCI_DID_INTEL_GLK_IGD, |
| PCI_DID_INTEL_GLK_IGD_EU12, |
| PCI_DID_INTEL_WHL_GT1_ULT_1, |
| PCI_DID_INTEL_WHL_GT2_ULT_1, |
| PCI_DID_INTEL_AML_GT2_ULX, |
| PCI_DID_INTEL_CFL_H_GT2, |
| PCI_DID_INTEL_CFL_H_XEON_GT2, |
| PCI_DID_INTEL_CFL_S_GT1_1, |
| PCI_DID_INTEL_CFL_S_GT1_2, |
| PCI_DID_INTEL_CFL_S_GT2_1, |
| PCI_DID_INTEL_CFL_S_GT2_2, |
| PCI_DID_INTEL_CFL_S_GT2_3, |
| PCI_DID_INTEL_CFL_S_GT2_4, |
| PCI_DID_INTEL_CFL_S_GT2_5, |
| PCI_DID_INTEL_CML_GT1_ULT_1, |
| PCI_DID_INTEL_CML_GT1_ULT_2, |
| PCI_DID_INTEL_CML_GT2_ULT_1, |
| PCI_DID_INTEL_CML_GT2_ULT_2, |
| PCI_DID_INTEL_CML_GT1_ULT_3, |
| PCI_DID_INTEL_CML_GT1_ULT_4, |
| PCI_DID_INTEL_CML_GT2_ULT_5, |
| PCI_DID_INTEL_CML_GT2_ULT_6, |
| PCI_DID_INTEL_CML_GT2_ULT_7, |
| PCI_DID_INTEL_CML_GT2_ULT_8, |
| PCI_DID_INTEL_CML_GT2_ULT_3, |
| PCI_DID_INTEL_CML_GT2_ULT_4, |
| PCI_DID_INTEL_CML_GT1_ULX_1, |
| PCI_DID_INTEL_CML_GT2_ULX_1, |
| PCI_DID_INTEL_CML_GT1_S_1, |
| PCI_DID_INTEL_CML_GT1_S_2, |
| PCI_DID_INTEL_CML_GT2_S_1, |
| PCI_DID_INTEL_CML_GT2_S_2, |
| PCI_DID_INTEL_CML_GT1_H_1, |
| PCI_DID_INTEL_CML_GT1_H_2, |
| PCI_DID_INTEL_CML_GT2_H_1, |
| PCI_DID_INTEL_CML_GT2_H_2, |
| PCI_DID_INTEL_CML_GT2_S_G0, |
| PCI_DID_INTEL_CML_GT2_S_P0, |
| PCI_DID_INTEL_CML_GT2_H_R0, |
| PCI_DID_INTEL_CML_GT2_H_R1, |
| PCI_DID_INTEL_TGL_GT0, |
| PCI_DID_INTEL_TGL_GT1_H_32, |
| PCI_DID_INTEL_TGL_GT1_H_16, |
| PCI_DID_INTEL_TGL_GT2_ULT, |
| PCI_DID_INTEL_TGL_GT2_ULX, |
| PCI_DID_INTEL_TGL_GT3_ULT, |
| PCI_DID_INTEL_TGL_GT2_ULT_1, |
| PCI_DID_INTEL_EHL_GT1_1, |
| PCI_DID_INTEL_EHL_GT2_1, |
| PCI_DID_INTEL_EHL_GT1_2, |
| PCI_DID_INTEL_EHL_GT2_2, |
| PCI_DID_INTEL_EHL_GT1_2_1, |
| PCI_DID_INTEL_EHL_GT1_3, |
| PCI_DID_INTEL_EHL_GT2_3, |
| PCI_DID_INTEL_JSL_GT1, |
| PCI_DID_INTEL_JSL_GT2, |
| PCI_DID_INTEL_JSL_GT3, |
| PCI_DID_INTEL_JSL_GT4, |
| PCI_DID_INTEL_ADL_GT0, |
| PCI_DID_INTEL_ADL_GT1, |
| PCI_DID_INTEL_ADL_GT1_1, |
| PCI_DID_INTEL_ADL_GT1_2, |
| PCI_DID_INTEL_ADL_GT1_3, |
| PCI_DID_INTEL_ADL_GT1_4, |
| PCI_DID_INTEL_ADL_GT1_5, |
| PCI_DID_INTEL_ADL_GT1_6, |
| PCI_DID_INTEL_ADL_GT1_7, |
| PCI_DID_INTEL_ADL_GT1_8, |
| PCI_DID_INTEL_ADL_GT1_9, |
| PCI_DID_INTEL_ADL_P_GT2, |
| PCI_DID_INTEL_ADL_P_GT2_1, |
| PCI_DID_INTEL_ADL_P_GT2_2, |
| PCI_DID_INTEL_ADL_P_GT2_3, |
| PCI_DID_INTEL_ADL_P_GT2_4, |
| PCI_DID_INTEL_ADL_P_GT2_5, |
| PCI_DID_INTEL_ADL_P_GT2_6, |
| PCI_DID_INTEL_ADL_P_GT2_7, |
| PCI_DID_INTEL_ADL_P_GT2_8, |
| PCI_DID_INTEL_ADL_P_GT2_9, |
| PCI_DID_INTEL_ADL_S_GT1, |
| PCI_DID_INTEL_ADL_S_GT1_1, |
| PCI_DID_INTEL_ADL_S_GT2, |
| PCI_DID_INTEL_ADL_S_GT2_1, |
| PCI_DID_INTEL_ADL_S_GT2_2, |
| PCI_DID_INTEL_ADL_M_GT1, |
| PCI_DID_INTEL_ADL_M_GT2, |
| PCI_DID_INTEL_ADL_M_GT3, |
| PCI_DID_INTEL_ADL_N_GT1, |
| PCI_DID_INTEL_ADL_N_GT2, |
| PCI_DID_INTEL_ADL_N_GT3, |
| PCI_DID_INTEL_RPL_S_GT0, |
| PCI_DID_INTEL_RPL_S_GT1_1, |
| PCI_DID_INTEL_RPL_S_GT1_2, |
| PCI_DID_INTEL_RPL_S_GT1_3, |
| PCI_DID_INTEL_RPL_HX_GT1, |
| PCI_DID_INTEL_RPL_HX_GT2, |
| PCI_DID_INTEL_RPL_HX_GT3, |
| PCI_DID_INTEL_RPL_HX_GT4, |
| 0, |
| }; |
| |
| static const struct pci_driver graphics_driver __pci_driver = { |
| .ops = &graphics_ops, |
| .vendor = PCI_VID_INTEL, |
| .devices = pci_device_ids, |
| }; |