diff options
| author | Matt DeVillier <matt.devillier@gmail.com> | 2017-07-01 12:25:46 -0500 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2018-03-30 07:21:03 +0000 |
| commit | 76d17719fe44faa4aa97fd6c26f121ba279761dd (patch) | |
| tree | 2f3ac06dd8a153872d5656883be6397858daf66f /src/soc/intel/skylake/include | |
| parent | 132bbe6be537b5cb8e827e01f28086d3e3ce6677 (diff) | |
soc/intel/skylake: Save/restore GMA OpRegion address
Add global/ACPI nvs variables required for IGD OpRegion.
Add functions necessary to save the ACPI OpRegion table
address in ASLB, and restore table address upon S3 resume.
Implementation modeled on existing Baytrail code.
Test: boot Windows 10 on google/chell with Tianocore payload and
GOP display init, observe display driver loaded and functional,
display not black screen when resuming from S3 suspend.
Change-Id: Icd6b514e531eec6e49dbb03eb765144f41c1e31b
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/25198
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Diffstat (limited to 'src/soc/intel/skylake/include')
| -rw-r--r-- | src/soc/intel/skylake/include/soc/nvs.h | 37 |
1 files changed, 36 insertions, 1 deletions
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; |