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-rw-r--r--src/soc/intel/skylake/acpi/globalnvs.asl42
-rw-r--r--src/soc/intel/skylake/graphics.c21
-rw-r--r--src/soc/intel/skylake/include/soc/nvs.h37
3 files changed, 98 insertions, 2 deletions
diff --git a/src/soc/intel/skylake/acpi/globalnvs.asl b/src/soc/intel/skylake/acpi/globalnvs.asl
index 5564f02df2..c4544e8a6e 100644
--- a/src/soc/intel/skylake/acpi/globalnvs.asl
+++ b/src/soc/intel/skylake/acpi/globalnvs.asl
@@ -71,6 +71,48 @@ Field (GNVS, ByteAcc, NoLock, Preserve)
EMNA, 64, // 0x44 - 0x4B EPC base address
ELNG, 64, // 0x4C - 0x53 EPC Length
+ /* IGD OpRegion */
+ Offset (0xb4),
+ ASLB, 32, // 0xb4 - IGD OpRegion Base Address
+ IBTT, 8, // 0xb8 - IGD boot panel device
+ IPAT, 8, // 0xb9 - IGD panel type cmos option
+ ITVF, 8, // 0xba - IGD TV format cmos option
+ ITVM, 8, // 0xbb - IGD TV minor format option
+ IPSC, 8, // 0xbc - IGD panel scaling
+ IBLC, 8, // 0xbd - IGD BLC config
+ IBIA, 8, // 0xbe - IGD BIA config
+ ISSC, 8, // 0xbf - IGD SSC config
+ I409, 8, // 0xc0 - IGD 0409 modified settings
+ I509, 8, // 0xc1 - IGD 0509 modified settings
+ I609, 8, // 0xc2 - IGD 0609 modified settings
+ I709, 8, // 0xc3 - IGD 0709 modified settings
+ IDMM, 8, // 0xc4 - IGD Power conservation feature
+ IDMS, 8, // 0xc5 - IGD DVMT memory size
+ IF1E, 8, // 0xc6 - IGD function 1 enable
+ HVCO, 8, // 0xc7 - IGD HPLL VCO
+ NXD1, 32, // 0xc8 - IGD _DGS next DID1
+ NXD2, 32, // 0xcc - IGD _DGS next DID2
+ NXD3, 32, // 0xd0 - IGD _DGS next DID3
+ NXD4, 32, // 0xd4 - IGD _DGS next DID4
+ NXD5, 32, // 0xd8 - IGD _DGS next DID5
+ NXD6, 32, // 0xdc - IGD _DGS next DID6
+ NXD7, 32, // 0xe0 - IGD _DGS next DID7
+ NXD8, 32, // 0xe4 - IGD _DGS next DID8
+
+ ISCI, 8, // 0xe8 - IGD SMI/SCI mode (0: SCI)
+ PAVP, 8, // 0xe9 - IGD PAVP data
+ Offset (0xeb),
+ OSCC, 8, // 0xeb - PCIe OSC control
+ NPCE, 8, // 0xec - native pcie support
+ PLFL, 8, // 0xed - platform flavor
+ BREV, 8, // 0xee - board revision
+ DPBM, 8, // 0xef - digital port b mode
+ DPCM, 8, // 0xf0 - digital port c mode
+ DPDM, 8, // 0xf1 - digital port d mode
+ ALFP, 8, // 0xf2 - active lfp
+ IMON, 8, // 0xf3 - current graphics turbo imon value
+ MMIO, 8, // 0xf4 - 64bit mmio support
+
/* ChromeOS specific */
Offset (0x100),
#include <vendorcode/google/chromeos/acpi/gnvs.asl>
diff --git a/src/soc/intel/skylake/graphics.c b/src/soc/intel/skylake/graphics.c
index 95a37d673d..bda08c54c0 100644
--- a/src/soc/intel/skylake/graphics.c
+++ b/src/soc/intel/skylake/graphics.c
@@ -14,11 +14,13 @@
* GNU General Public License for more details.
*/
+#include <cbmem.h>
#include <console/console.h>
#include <device/pci.h>
#include <drivers/intel/gma/i915_reg.h>
#include <intelblocks/graphics.h>
#include <drivers/intel/gma/opregion.h>
+#include <soc/nvs.h>
#include <soc/ramstage.h>
uintptr_t fsp_soc_get_igd_bar(void)
@@ -60,6 +62,21 @@ void graphics_soc_init(struct device *dev)
/* Initialize PCI device, load/execute BIOS Option ROM */
pci_dev_init(dev);
+
+ intel_gma_restore_opregion();
+}
+
+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;
}
/* Initialize IGD OpRegion, called from ACPI code */
@@ -72,6 +89,7 @@ uintptr_t graphics_soc_write_acpi_opregion(struct device *device,
uintptr_t current, struct acpi_rsdp *rsdp)
{
igd_opregion_t *opregion;
+ global_nvs_t *gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS);
/* If GOP is not used, exit here */
if (!IS_ENABLED(CONFIG_INTEL_GMA_ADD_VBT_DATA_FILE))
@@ -86,7 +104,8 @@ uintptr_t graphics_soc_write_acpi_opregion(struct device *device,
if (intel_gma_init_igd_opregion(opregion) != CB_SUCCESS)
return current;
-
+ if (gnvs)
+ gnvs->aslb = (u32)(uintptr_t)opregion;
update_igd_opregion(opregion);
current += sizeof(igd_opregion_t);
current = acpi_align_current(current);
diff --git a/src/soc/intel/skylake/include/soc/nvs.h b/src/soc/intel/skylake/include/soc/nvs.h
index 8bc4d8dfe4..bd3610e654 100644
--- a/src/soc/intel/skylake/include/soc/nvs.h
+++ b/src/soc/intel/skylake/include/soc/nvs.h
@@ -62,7 +62,42 @@ typedef struct global_nvs_t {
u8 ecps; /* 0x43 - SGX Enabled status */
u64 emna; /* 0x44 - 0x4B EPC base address */
u64 elng; /* 0x4C - 0x53 EPC Length */
- u8 unused[172];
+ u8 rsvd[96];
+
+ /* IGD OpRegion */
+ u32 aslb; /* 0xb4 - IGD OpRegion Base Address */
+ u8 ibtt; /* 0xb8 - IGD boot type */
+ u8 ipat; /* 0xb9 - IGD panel type */
+ u8 itvf; /* 0xba - IGD TV format */
+ u8 itvm; /* 0xbb - IGD TV minor format */
+ u8 ipsc; /* 0xbc - IGD Panel Scaling */
+ u8 iblc; /* 0xbd - IGD BLC configuration */
+ u8 ibia; /* 0xbe - IGD BIA configuration */
+ u8 issc; /* 0xbf - IGD SSC configuration */
+ u8 i409; /* 0xc0 - IGD 0409 modified settings */
+ u8 i509; /* 0xc1 - IGD 0509 modified settings */
+ u8 i609; /* 0xc2 - IGD 0609 modified settings */
+ u8 i709; /* 0xc3 - IGD 0709 modified settings */
+ u8 idmm; /* 0xc4 - IGD Power Conservation */
+ u8 idms; /* 0xc5 - IGD DVMT memory size */
+ u8 if1e; /* 0xc6 - IGD Function 1 Enable */
+ u8 hvco; /* 0xc7 - IGD HPLL VCO */
+ u32 nxd[8]; /* 0xc8 - IGD next state DIDx for _DGS */
+ u8 isci; /* 0xe8 - IGD SMI/SCI mode (0: SCI) */
+ u8 pavp; /* 0xe9 - IGD PAVP data */
+ u8 rsvd12; /* 0xea - rsvd */
+ u8 oscc; /* 0xeb - PCIe OSC control */
+ u8 npce; /* 0xec - native pcie support */
+ u8 plfl; /* 0xed - platform flavor */
+ u8 brev; /* 0xee - board revision */
+ u8 dpbm; /* 0xef - digital port b mode */
+ u8 dpcm; /* 0xf0 - digital port c mode */
+ u8 dpdm; /* 0xf1 - digital port c mode */
+ u8 alfp; /* 0xf2 - active lfp */
+ u8 imon; /* 0xf3 - current graphics turbo imon value */
+ u8 mmio; /* 0xf4 - 64bit mmio support */
+
+ u8 unused[11];
/* ChromeOS specific (0x100 - 0xfff) */
chromeos_acpi_t chromeos;