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authorMatt DeVillier <matt.devillier@gmail.com>2017-07-14 13:28:42 -0500
committerMartin Roth <martinroth@google.com>2017-08-11 16:15:14 +0000
commitebe08e0ee3dffad30abffac04f95c7579ec11a30 (patch)
tree04455c7c23c3ad0cfc7f6ceb60dc1a6f74b6f116 /src/drivers
parent44d399c394f0cd5d38dffe551742badc100573d3 (diff)
downloadcoreboot-ebe08e0ee3dffad30abffac04f95c7579ec11a30.tar.xz
drivers/intel/gma/opregion: migrate from nb/common
Migrate opregion code from northbridge/intel/common to drivers/intel/gma in preparation for consolidation with soc/intel/common opregion code. Rename init_igd_opregion() for clarity and disambiguation with other implementations. Change-Id: I2d0bae98f04dbe7e896ca34e15f24d29b6aa2ed6 Signed-off-by: Matt DeVillier <matt.devillier@gmail.com> Reviewed-on: https://review.coreboot.org/20582 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Diffstat (limited to 'src/drivers')
-rw-r--r--src/drivers/intel/gma/Makefile.inc1
-rw-r--r--src/drivers/intel/gma/opregion.c105
-rw-r--r--src/drivers/intel/gma/opregion.h1
3 files changed, 106 insertions, 1 deletions
diff --git a/src/drivers/intel/gma/Makefile.inc b/src/drivers/intel/gma/Makefile.inc
index 50494e19de..940d15a038 100644
--- a/src/drivers/intel/gma/Makefile.inc
+++ b/src/drivers/intel/gma/Makefile.inc
@@ -21,7 +21,6 @@ endif
ramstage-$(CONFIG_INTEL_GMA_ACPI) += acpi.c
ramstage-$(CONFIG_INTEL_GMA_ACPI) += opregion.c
-
ifeq ($(CONFIG_MAINBOARD_USE_LIBGFXINIT),y)
$(call add-special-class,gfxinit)
diff --git a/src/drivers/intel/gma/opregion.c b/src/drivers/intel/gma/opregion.c
index 721a5d8239..e9cbba13cc 100644
--- a/src/drivers/intel/gma/opregion.c
+++ b/src/drivers/intel/gma/opregion.c
@@ -14,12 +14,16 @@
* GNU General Public License for more details.
*/
+#include <arch/acpi.h>
+#include <types.h>
+#include <string.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include <console/console.h>
#include <cbmem.h>
+#include "intel_bios.h"
#include "opregion.h"
/* Write ASLS PCI register and prepare SWSCI register. */
@@ -62,3 +66,104 @@ void intel_gma_restore_opregion(void)
printk(BIOS_ERR, "Error: GNVS or ASLB not set.\n");
}
}
+
+static void *get_intel_vbios(void)
+{
+ /* This should probably be looking at CBFS or we should always
+ * deploy the VBIOS on Intel systems, even if we don't run it
+ * in coreboot (e.g. SeaBIOS only scenarios).
+ */
+ u8 *vbios = (u8 *)0xc0000;
+
+ optionrom_header_t *oprom = (optionrom_header_t *)vbios;
+ optionrom_pcir_t *pcir = (optionrom_pcir_t *)(vbios +
+ oprom->pcir_offset);
+
+ printk(BIOS_DEBUG, "GET_VBIOS: %x %x %x %x %x\n",
+ oprom->signature, pcir->vendor, pcir->classcode[0],
+ pcir->classcode[1], pcir->classcode[2]);
+
+
+ if ((oprom->signature == OPROM_SIGNATURE) &&
+ (pcir->vendor == PCI_VENDOR_ID_INTEL) &&
+ (pcir->classcode[0] == 0x00) &&
+ (pcir->classcode[1] == 0x00) &&
+ (pcir->classcode[2] == 0x03))
+ return (void *)vbios;
+
+ return NULL;
+}
+
+static enum cb_err init_opregion_vbt(igd_opregion_t *opregion)
+{
+ void *vbios;
+ vbios = get_intel_vbios();
+ if (!vbios) {
+ printk(BIOS_DEBUG, "VBIOS not found.\n");
+ return CB_ERR;
+ }
+
+ printk(BIOS_DEBUG, " ... VBIOS found at %p\n", vbios);
+ optionrom_header_t *oprom = (optionrom_header_t *)vbios;
+ optionrom_vbt_t *vbt = (optionrom_vbt_t *)(vbios +
+ oprom->vbt_offset);
+
+ if (read32(vbt->hdr_signature) != VBT_SIGNATURE) {
+ printk(BIOS_DEBUG, "VBT not found!\n");
+ return CB_ERR;
+ }
+
+ memcpy(opregion->header.vbios_version, vbt->coreblock_biosbuild, 4);
+ memcpy(opregion->vbt.gvd1, vbt, vbt->hdr_vbt_size < 7168 ?
+ vbt->hdr_vbt_size : 7168);
+
+ return CB_SUCCESS;
+}
+
+/* Initialize IGD OpRegion, called from ACPI code and OS drivers */
+enum cb_err intel_gma_init_igd_opregion(igd_opregion_t *opregion)
+{
+ enum cb_err ret;
+
+ memset((void *)opregion, 0, sizeof(igd_opregion_t));
+
+ // FIXME if IGD is disabled, we should exit here.
+
+ memcpy(&opregion->header.signature, IGD_OPREGION_SIGNATURE,
+ sizeof(opregion->header.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;
+
+ ret = init_opregion_vbt(opregion);
+ if (ret != CB_SUCCESS)
+ return ret;
+
+ /* Write ASLS PCI register and prepare SWSCI register. */
+ intel_gma_opregion_register((uintptr_t)opregion);
+
+ return CB_SUCCESS;
+}
diff --git a/src/drivers/intel/gma/opregion.h b/src/drivers/intel/gma/opregion.h
index 10c1691774..3ae68e527b 100644
--- a/src/drivers/intel/gma/opregion.h
+++ b/src/drivers/intel/gma/opregion.h
@@ -250,5 +250,6 @@ void intel_gma_opregion_register(uintptr_t opregion);
void intel_gma_restore_opregion(void);
uintptr_t gma_get_gnvs_aslb(const void *gnvs);
void gma_set_gnvs_aslb(void *gnvs, uintptr_t aslb);
+enum cb_err intel_gma_init_igd_opregion(igd_opregion_t *opregion);
#endif /* _COMMON_GMA_H_ */