| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* This file is part of the coreboot project. */ |
| |
| #include <console/console.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| #include <device/pci_ops.h> |
| #include <commonlib/helpers.h> |
| #include <cbmem.h> |
| #include <drivers/intel/gma/intel_bios.h> |
| #include <drivers/intel/gma/edid.h> |
| #include <drivers/intel/gma/i915.h> |
| #include <drivers/intel/gma/opregion.h> |
| #include <drivers/intel/gma/libgfxinit.h> |
| #include <pc80/vga.h> |
| #include <types.h> |
| |
| #include "chip.h" |
| #include "drivers/intel/gma/i915_reg.h" |
| #include "x4x.h" |
| |
| #if CONFIG(SOUTHBRIDGE_INTEL_I82801JX) |
| #include <southbridge/intel/i82801jx/nvs.h> |
| #elif CONFIG(SOUTHBRIDGE_INTEL_I82801GX) |
| #include <southbridge/intel/i82801gx/nvs.h> |
| #endif |
| |
| #define BASE_FREQUENCY 96000 |
| |
| uintptr_t gma_get_gnvs_aslb(const void *gnvs) |
| { |
| const global_nvs_t *gnvs_ptr = gnvs; |
| return (uintptr_t)(gnvs_ptr ? gnvs_ptr->aslb : 0); |
| } |
| |
| void gma_set_gnvs_aslb(void *gnvs, uintptr_t aslb) |
| { |
| global_nvs_t *gnvs_ptr = gnvs; |
| if (gnvs_ptr) |
| gnvs_ptr->aslb = aslb; |
| } |
| |
| static void gma_func0_init(struct device *dev) |
| { |
| u32 reg32; |
| |
| /* IGD needs to be Bus Master */ |
| reg32 = pci_read_config32(dev, PCI_COMMAND); |
| reg32 |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | PCI_COMMAND_IO; |
| pci_write_config32(dev, PCI_COMMAND, reg32); |
| |
| /* configure GMBUSFREQ */ |
| pci_update_config16(dev, 0xcc, ~0x1ff, 0xbc); |
| |
| int vga_disable = (pci_read_config16(dev, D0F0_GGC) & 2) >> 1; |
| |
| if (CONFIG(MAINBOARD_USE_LIBGFXINIT)) { |
| if (vga_disable) { |
| printk(BIOS_INFO, |
| "IGD is not decoding legacy VGA MEM and IO: skipping NATIVE graphic init\n"); |
| } else { |
| int lightup_ok; |
| gma_gfxinit(&lightup_ok); |
| } |
| } else { |
| pci_dev_init(dev); |
| } |
| |
| intel_gma_restore_opregion(); |
| } |
| |
| static void gma_func0_disable(struct device *dev) |
| { |
| struct device *dev_host = pcidev_on_root(0, 0); |
| u16 ggc; |
| |
| ggc = pci_read_config16(dev_host, D0F0_GGC); |
| ggc |= (1 << 1); /* VGA cycles to discrete GPU */ |
| pci_write_config16(dev_host, D0F0_GGC, ggc); |
| } |
| |
| static void gma_generate_ssdt(const struct device *device) |
| { |
| const struct northbridge_intel_x4x_config *chip = device->chip_info; |
| |
| drivers_intel_gma_displays_ssdt_generate(&chip->gfx); |
| } |
| |
| static unsigned long |
| gma_write_acpi_tables(const struct device *const dev, |
| unsigned long current, |
| struct acpi_rsdp *const rsdp) |
| { |
| igd_opregion_t *opregion = (igd_opregion_t *)current; |
| global_nvs_t *gnvs; |
| |
| if (intel_gma_init_igd_opregion(opregion) != CB_SUCCESS) |
| return current; |
| |
| current += sizeof(igd_opregion_t); |
| |
| /* GNVS has been already set up */ |
| gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS); |
| if (gnvs) { |
| /* IGD OpRegion Base Address */ |
| gma_set_gnvs_aslb(gnvs, (uintptr_t)opregion); |
| } else { |
| printk(BIOS_ERR, "Error: GNVS table not found.\n"); |
| } |
| |
| current = acpi_align_current(current); |
| return current; |
| } |
| |
| static const char *gma_acpi_name(const struct device *dev) |
| { |
| return "GFX0"; |
| } |
| |
| static struct pci_operations gma_pci_ops = { |
| .set_subsystem = pci_dev_set_subsystem, |
| }; |
| |
| static struct device_operations gma_func0_ops = { |
| .read_resources = pci_dev_read_resources, |
| .set_resources = pci_dev_set_resources, |
| .enable_resources = pci_dev_enable_resources, |
| .acpi_fill_ssdt = gma_generate_ssdt, |
| .init = gma_func0_init, |
| .ops_pci = &gma_pci_ops, |
| .disable = gma_func0_disable, |
| .acpi_name = gma_acpi_name, |
| .write_acpi_tables = gma_write_acpi_tables, |
| }; |
| |
| static const unsigned short pci_device_ids[] = { |
| 0x2e02, /* Eaglelake */ |
| 0x2e12, /* Q43/Q45 */ |
| 0x2e22, /* G43/G45 */ |
| 0x2e32, /* G41 */ |
| 0x2e42, /* B43 */ |
| 0x2e92, /* B43_I */ |
| 0 |
| }; |
| |
| static const struct pci_driver gma __pci_driver = { |
| .ops = &gma_func0_ops, |
| .vendor = PCI_VENDOR_ID_INTEL, |
| .devices = pci_device_ids, |
| }; |