1 /* SPDX-License-Identifier: GPL-2.0-only */
2
3 #include "chip.h"
4 #include <console/console.h>
5 #include <device/device.h>
6 #include <device/pci.h>
7 #include <device/pci_ids.h>
8 #include <drivers/intel/gma/opregion.h>
9 #include <drivers/intel/gma/i915.h>
10 #include <reg_script.h>
11 #include <soc/gfx.h>
12 #include <soc/pci_devs.h>
13 #include <soc/ramstage.h>
14
15 static const struct reg_script gpu_pre_vbios_script[] = {
16 /* Make sure GFX is bus master with MMIO access */
17 REG_PCI_OR32(PCI_COMMAND, PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY),
18 REG_SCRIPT_END
19 };
20
21 static const struct reg_script gfx_post_vbios_script[] = {
22 /* Set Lock bits */
23 REG_PCI_RMW32(GGC, 0xffffffff, GGC_GGCLCK),
24 REG_PCI_RMW32(GSM_BASE, 0xffffffff, GSM_BDSM_LOCK),
25 REG_PCI_RMW32(GTT_BASE, 0xffffffff, GTT_BGSM_LOCK),
26 REG_SCRIPT_END
27 };
28
gfx_run_script(struct device * dev,const struct reg_script * ops)29 static inline void gfx_run_script(struct device *dev, const struct reg_script *ops)
30 {
31 reg_script_run_on_dev(dev, ops);
32 }
33
gfx_pre_vbios_init(struct device * dev)34 static void gfx_pre_vbios_init(struct device *dev)
35 {
36 printk(BIOS_INFO, "GFX: Pre VBIOS Init\n");
37 gfx_run_script(dev, gpu_pre_vbios_script);
38 }
39
gfx_post_vbios_init(struct device * dev)40 static void gfx_post_vbios_init(struct device *dev)
41 {
42 printk(BIOS_INFO, "GFX: Post VBIOS Init\n");
43 gfx_run_script(dev, gfx_post_vbios_script);
44 }
45
gfx_init(struct device * dev)46 static void gfx_init(struct device *dev)
47 {
48 intel_gma_init_igd_opregion();
49
50 if (!CONFIG(RUN_FSP_GOP)) {
51 /* Pre VBIOS Init */
52 gfx_pre_vbios_init(dev);
53
54 /* Run VBIOS */
55 pci_dev_init(dev);
56
57 /* Post VBIOS Init */
58 gfx_post_vbios_init(dev);
59 }
60 }
61
gma_generate_ssdt(const struct device * dev)62 static void gma_generate_ssdt(const struct device *dev)
63 {
64 const struct soc_intel_braswell_config *chip = dev->chip_info;
65
66 drivers_intel_gma_displays_ssdt_generate(&chip->gfx);
67 }
68
69 static struct device_operations gfx_device_ops = {
70 .read_resources = pci_dev_read_resources,
71 .set_resources = pci_dev_set_resources,
72 .enable_resources = pci_dev_enable_resources,
73 .init = gfx_init,
74 .ops_pci = &soc_pci_ops,
75 .acpi_fill_ssdt = gma_generate_ssdt,
76 };
77
78 static const struct pci_driver gfx_driver __pci_driver = {
79 .ops = &gfx_device_ops,
80 .vendor = PCI_VID_INTEL,
81 .device = GFX_DEVID,
82 };
83