[coreboot-gerrit] Patch set updated for coreboot: soc/intel/apollolake: Add opregion code to pass vbt in kernel.
Andrey Petrov (andrey.petrov@intel.com)
gerrit at coreboot.org
Wed Apr 27 00:55:51 CEST 2016
Andrey Petrov (andrey.petrov at intel.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/14519
-gerrit
commit 0d404d50e899686f59d409581d330b2630d34f37
Author: Abhay Kumar <abhay.kumar at intel.com>
Date: Tue Mar 15 16:16:44 2016 -0700
soc/intel/apollolake: Add opregion code to pass vbt in kernel.
Change-Id: I47d01a56d242f0d3fcdb0fc5146500210ea6f48c
Signed-off-by: Abhay Kumar <abhay.kumar at intel.com>
Signed-off-by: Andrey Petrov <andrey.petrov at intel.com>
---
src/drivers/intel/fsp2_0/graphics.c | 40 ++++++
src/drivers/intel/fsp2_0/include/fsp/util.h | 3 +
src/soc/intel/apollolake/acpi.c | 89 +++++++++++-
src/soc/intel/apollolake/include/soc/acpi.h | 1 +
src/soc/intel/apollolake/include/soc/pci_ids.h | 10 ++
src/soc/intel/common/gma.h | 182 +++++++++++++++++++++++++
6 files changed, 324 insertions(+), 1 deletion(-)
diff --git a/src/drivers/intel/fsp2_0/graphics.c b/src/drivers/intel/fsp2_0/graphics.c
index 1480179..e52a5f4 100644
--- a/src/drivers/intel/fsp2_0/graphics.c
+++ b/src/drivers/intel/fsp2_0/graphics.c
@@ -54,6 +54,46 @@ static const struct fsp_framebuffer {
[pixel_bgrx_8bpc] = { {16, 8}, {8, 8}, {0, 8}, {24, 8} },
};
+/* Reading VBT table from flash */
+const optionrom_vbt_t *fsp_get_vbt(uint32_t *vbt_len)
+{
+ size_t vbt_size;
+ union {
+ const optionrom_vbt_t *data;
+ uint32_t *signature;
+ } vbt;
+
+ /* Locate the vbt file in cbfs */
+ vbt.data = cbfs_boot_map_with_leak("vbt.bin", CBFS_TYPE_RAW,
+ &vbt_size);
+ if (!vbt.data) {
+ printk(BIOS_INFO,
+ "FSP_INFO: VBT data file (vbt.bin) not found in CBFS");
+ return NULL;
+ }
+
+ /* Validate the vbt file */
+ if (*vbt.signature != VBT_SIGNATURE) {
+ printk(BIOS_WARNING,
+ "FSP_WARNING: Invalid signature in VBT data file (vbt.bin)!\n");
+ return NULL;
+ }
+ *vbt_len = vbt_size;
+ printk(BIOS_DEBUG, "FSP_INFO: VBT found at %p, 0x%08x bytes\n",
+ vbt.data, *vbt_len);
+
+#if IS_ENABLED(CONFIG_DISPLAY_VBT)
+ /* Display the vbt file contents */
+ printk(BIOS_DEBUG, "VBT Data:\n");
+ hexdump(vbt.data, *vbt_len);
+ printk(BIOS_DEBUG, "\n");
+#endif
+
+ /* Return the pointer to the vbt file data */
+ return vbt.data;
+}
+
+
enum cb_err fsp_fill_lb_framebuffer(struct lb_framebuffer *framebuffer)
{
size_t size;
diff --git a/src/drivers/intel/fsp2_0/include/fsp/util.h b/src/drivers/intel/fsp2_0/include/fsp/util.h
index d9d9539..fe0e359 100644
--- a/src/drivers/intel/fsp2_0/include/fsp/util.h
+++ b/src/drivers/intel/fsp2_0/include/fsp/util.h
@@ -16,6 +16,9 @@
#include <boot/coreboot_tables.h>
#include <fsp/info_header.h>
#include <memrange.h>
+#include <soc/intel/common/gma.h>
+
+const optionrom_vbt_t *fsp_get_vbt(uint32_t *vbt_len);
/*
* Hand-off-block handling functions that depend on CBMEM, and thus can only
diff --git a/src/soc/intel/apollolake/acpi.c b/src/soc/intel/apollolake/acpi.c
index a5d1dfa..bdbdfe9 100644
--- a/src/soc/intel/apollolake/acpi.c
+++ b/src/soc/intel/apollolake/acpi.c
@@ -25,6 +25,12 @@
#include <soc/iomap.h>
#include <soc/pm.h>
#include <soc/nvs.h>
+#include <vendorcode/google/chromeos/gnvs.h>
+#include <fsp/util.h>
+#include <soc/pci_ids.h>
+#include <string.h>
+#include <fsp/util.h>
+#include <device/pci.h>
unsigned long acpi_fill_mcfg(unsigned long current)
{
@@ -35,6 +41,78 @@ unsigned long acpi_fill_mcfg(unsigned long current)
return current;
}
+
+/* Reading VBT table from flash */
+static void get_fsp_vbt(igd_opregion_t *opregion)
+{
+ const optionrom_vbt_t *vbt;
+ uint32_t vbt_len;
+
+ vbt = fsp_get_vbt(&vbt_len);
+ if (!vbt)
+ die("vbt data not found");
+ memcpy(opregion->header.vbios_version, vbt->coreblock_biosbuild, 4);
+ memcpy(opregion->vbt.gvd1, vbt, vbt->hdr_vbt_size <
+ sizeof(opregion->vbt.gvd1) ? vbt->hdr_vbt_size :
+ sizeof(opregion->vbt.gvd1));
+}
+
+
+static int init_igd_opregion(igd_opregion_t *opregion)
+{
+ device_t igd;
+ u16 reg16;
+
+ memset(opregion, 0, sizeof(igd_opregion_t));
+
+ /* FIXME if IGD is disabled, we should exit here. */
+
+ memcpy(&opregion->header.signature, IGD_OPREGION_SIGNATURE,
+ sizeof(IGD_OPREGION_SIGNATURE));
+
+ /* 8kb */
+ opregion->header.size = sizeof(igd_opregion_t) / 1024;
+ opregion->header.version = IGD_OPREGION_VERSION;
+
+ /* FIXME We just assume we're mobile for now */
+ opregion->header.mailboxes = MAILBOXES_MOBILE;
+
+ /* TODO Initialize Mailbox 1 */
+
+ /* TODO Initialize Mailbox 3 */
+ opregion->mailbox3.bclp = IGD_BACKLIGHT_BRIGHTNESS;
+ opregion->mailbox3.pfit = IGD_FIELD_VALID | IGD_PFIT_STRETCH;
+ opregion->mailbox3.pcft = 0; /* should be (IMON << 1) & 0x3e */
+ opregion->mailbox3.cblv = IGD_FIELD_VALID | IGD_INITIAL_BRIGHTNESS;
+ opregion->mailbox3.bclm[0] = IGD_WORD_FIELD_VALID + 0x0000;
+ opregion->mailbox3.bclm[1] = IGD_WORD_FIELD_VALID + 0x0a19;
+ opregion->mailbox3.bclm[2] = IGD_WORD_FIELD_VALID + 0x1433;
+ opregion->mailbox3.bclm[3] = IGD_WORD_FIELD_VALID + 0x1e4c;
+ opregion->mailbox3.bclm[4] = IGD_WORD_FIELD_VALID + 0x2866;
+ opregion->mailbox3.bclm[5] = IGD_WORD_FIELD_VALID + 0x327f;
+ opregion->mailbox3.bclm[6] = IGD_WORD_FIELD_VALID + 0x3c99;
+ opregion->mailbox3.bclm[7] = IGD_WORD_FIELD_VALID + 0x46b2;
+ opregion->mailbox3.bclm[8] = IGD_WORD_FIELD_VALID + 0x50cc;
+ opregion->mailbox3.bclm[9] = IGD_WORD_FIELD_VALID + 0x5ae5;
+ opregion->mailbox3.bclm[10] = IGD_WORD_FIELD_VALID + 0x64ff;
+
+ get_fsp_vbt(opregion);
+
+ /*
+ * TODO This needs to happen in S3 resume, too.
+ * Maybe it should move to the finalize handler
+ */
+ igd = dev_find_slot(0, PCI_DEVFN(GFX_DEV, GFX_FUNC));
+
+ pci_write_config32(igd, ASLS, (u32)opregion);
+ reg16 = pci_read_config16(igd, SWSCI);
+ reg16 &= ~(1 << 0);
+ reg16 |= (1 << 15);
+ pci_write_config16(igd, SWSCI, reg16);
+
+ return 0;
+}
+
static int acpi_sci_irq(void)
{
int sci_irq = 9;
@@ -126,7 +204,16 @@ unsigned long southbridge_write_acpi_tables(device_t device,
unsigned long current,
struct acpi_rsdp *rsdp)
{
- return acpi_write_hpet(device, current, rsdp);
+ current = acpi_write_hpet(device, current, rsdp);
+
+ igd_opregion_t *opregion;
+ printk(BIOS_DEBUG, "ACPI: * IGD OpRegion\n");
+ opregion = (igd_opregion_t *)current;
+ init_igd_opregion(opregion);
+ current += sizeof(igd_opregion_t);
+
+ return acpi_align_current(current);
+
}
static void acpi_create_gnvs(struct global_nvs_t *gnvs)
diff --git a/src/soc/intel/apollolake/include/soc/acpi.h b/src/soc/intel/apollolake/include/soc/acpi.h
index 3605cc3..1f5663f 100644
--- a/src/soc/intel/apollolake/include/soc/acpi.h
+++ b/src/soc/intel/apollolake/include/soc/acpi.h
@@ -19,6 +19,7 @@
#define _SOC_APOLLOLAKE_ACPI_H_
#include <arch/acpi.h>
+#include <soc/nvs.h>
void soc_fill_common_fadt(acpi_fadt_t * fadt);
diff --git a/src/soc/intel/apollolake/include/soc/pci_ids.h b/src/soc/intel/apollolake/include/soc/pci_ids.h
index 148640f..458c24e 100644
--- a/src/soc/intel/apollolake/include/soc/pci_ids.h
+++ b/src/soc/intel/apollolake/include/soc/pci_ids.h
@@ -41,4 +41,14 @@
#define PCI_DEVICE_ID_APOLLOLAKE_SPI2 0x5ac6 /* 00:19.2 */
#define PCI_DEVICE_ID_APOLLOLAKE_LPC 0x5ae8 /* 00:1f.0 */
+/* Graphics and Display */
+#define GFX_DEV 0x2
+#define GFX_FUNC 0
+#define GFX_DEVID 0x5a84
+
+/* System Agent Devices */
+#define SA_DEV_SLOT_IGD 0x02
+#define SA_DEVFN_IGD _SA_DEVFN(IGD)
+#define SA_DEV_IGD _SA_DEV(IGD)
+
#endif /* _SOC_APOLLOLAKE_PCI_IDS_H_ */
diff --git a/src/soc/intel/common/gma.h b/src/soc/intel/common/gma.h
new file mode 100644
index 0000000..1079bc8
--- /dev/null
+++ b/src/soc/intel/common/gma.h
@@ -0,0 +1,182 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 Chromium OS Authors
+ * Copyright (C) 2015 Intel Corp.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#ifndef _GMA_H_
+#define _GMA_H_
+
+#include <types.h>
+
+/* IGD PCI Configuration register */
+#define ASLS 0xfc /* OpRegion Base */
+#define SWSCI 0xe8 /* SWSCI Register */
+#define GSSCIE (1 << 0) /* SCI Event trigger */
+#define SMISCISEL (1 << 15) /* Select SMI or SCI event source */
+
+/* mailbox 0: header */
+typedef struct {
+ u8 signature[16];
+ u32 size;
+ u32 version;
+ u8 sbios_version[32];
+ u8 vbios_version[16];
+ u8 driver_version[16];
+ u32 mailboxes;
+ u8 reserved[164];
+} __attribute__((packed)) opregion_header_t;
+
+#define IGD_OPREGION_SIGNATURE "IntelGraphicsMem"
+#define IGD_OPREGION_VERSION 2
+
+#define IGD_MBOX1 (1 << 0)
+#define IGD_MBOX2 (1 << 1)
+#define IGD_MBOX3 (1 << 2)
+#define IGD_MBOX4 (1 << 3)
+#define IGD_MBOX5 (1 << 4)
+
+#define MAILBOXES_MOBILE (IGD_MBOX1 | IGD_MBOX2 | IGD_MBOX3 | \
+ IGD_MBOX4 | IGD_MBOX5)
+#define MAILBOXES_DESKTOP (IGD_MBOX2 | IGD_MBOX4)
+
+#define SBIOS_VERSION_SIZE 32
+
+/* mailbox 1: public acpi methods */
+typedef struct {
+ u32 drdy;
+ u32 csts;
+ u32 cevt;
+ u8 reserved1[20];
+ u32 didl[8];
+ u32 cpdl[8];
+ u32 cadl[8];
+ u32 nadl[8];
+ u32 aslp;
+ u32 tidx;
+ u32 chpd;
+ u32 clid;
+ u32 cdck;
+ u32 sxsw;
+ u32 evts;
+ u32 cnot;
+ u32 nrdy;
+ u8 reserved2[60];
+} __attribute__((packed)) opregion_mailbox1_t;
+
+/* mailbox 2: software sci interface */
+typedef struct {
+ u32 scic;
+ u32 parm;
+ u32 dslp;
+ u8 reserved[244];
+} __attribute__((packed)) opregion_mailbox2_t;
+
+/* mailbox 3: power conservation */
+typedef struct {
+ u32 ardy;
+ u32 aslc;
+ u32 tche;
+ u32 alsi;
+ u32 bclp;
+ u32 pfit;
+ u32 cblv;
+ u16 bclm[20];
+ u32 cpfm;
+ u32 epfm;
+ u8 plut[74];
+ u32 pfmb;
+ u32 ccdv;
+ u32 pcft;
+ u8 reserved[94];
+} __attribute__((packed)) opregion_mailbox3_t;
+
+#define IGD_BACKLIGHT_BRIGHTNESS 0xff
+#define IGD_INITIAL_BRIGHTNESS 0x64
+
+#define IGD_FIELD_VALID (1 << 31)
+#define IGD_WORD_FIELD_VALID (1 << 15)
+#define IGD_PFIT_STRETCH 6
+
+/* mailbox 4: vbt */
+typedef struct {
+ u8 gvd1[7168];
+} __attribute__((packed)) opregion_vbt_t;
+
+/* IGD OpRegion */
+typedef struct {
+ opregion_header_t header;
+ opregion_mailbox1_t mailbox1;
+ opregion_mailbox2_t mailbox2;
+ opregion_mailbox3_t mailbox3;
+ opregion_vbt_t vbt;
+} __attribute__((packed)) igd_opregion_t;
+
+/* Intel Video BIOS (Option ROM) */
+typedef struct {
+ u16 signature;
+ u8 size;
+ u8 reserved[21];
+ u16 pcir_offset;
+ u16 vbt_offset;
+} __attribute__((packed)) optionrom_header_t;
+
+#define OPROM_SIGNATURE 0xaa55
+
+typedef struct {
+ u32 signature;
+ u16 vendor;
+ u16 device;
+ u16 reserved1;
+ u16 length;
+ u8 revision;
+ u8 classcode[3];
+ u16 imagelength;
+ u16 coderevision;
+ u8 codetype;
+ u8 indicator;
+ u16 reserved2;
+} __attribute__((packed)) optionrom_pcir_t;
+
+typedef struct {
+ u8 hdr_signature[20];
+ u16 hdr_version;
+ u16 hdr_size;
+ u16 hdr_vbt_size;
+ u8 hdr_vbt_checksum;
+ u8 hdr_reserved;
+ u32 hdr_vbt_datablock;
+ u32 hdr_aim[4];
+ u8 datahdr_signature[16];
+ u16 datahdr_version;
+ u16 datahdr_size;
+ u16 datahdr_datablocksize;
+ u8 coreblock_id;
+ u16 coreblock_size;
+ u16 coreblock_biossize;
+ u8 coreblock_biostype;
+ u8 coreblock_releasestatus;
+ u8 coreblock_hwsupported;
+ u8 coreblock_integratedhw;
+ u8 coreblock_biosbuild[4];
+ u8 coreblock_biossignon[155];
+} __attribute__((packed)) optionrom_vbt_t;
+
+#define VBT_SIGNATURE 0x54425624
+
+#endif /* _GMA_H_ */
+
More information about the coreboot-gerrit
mailing list