/** @file
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Policy definition for Internal Graphics Config Block (PreMem)
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Copyright (c) 2019 Intel Corporation. All rights reserved. <BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef _GRAPHICS_PEI_PREMEM_CONFIG_H_
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#define _GRAPHICS_PEI_PREMEM_CONFIG_H_
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#pragma pack(push, 1)
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#define GRAPHICS_PEI_PREMEM_CONFIG_REVISION 2
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/**
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This Configuration block is to configure GT related PreMem data/variables.\n
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<b>Revision 1</b>:
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- Initial version.
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<b>Revision 2</b>:
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- Added DeltaT12PowerCycleDelayPreMem.
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**/
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typedef struct {
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CONFIG_BLOCK_HEADER Header; ///< Offset 0-27 Config Block Header
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/**
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Offset 28:0
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Selection of the primary display device: 0=iGFX, 1=PEG, 2=PCIe Graphics on PCH, <b>3=AUTO</b>, 4=Switchable Graphics\n
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When AUTO mode selected, the priority of display devices is: PCIe Graphics on PCH > PEG > iGFX
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**/
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UINT32 PrimaryDisplay : 3;
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/**
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Offset 28:3
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Intel Gfx Support. It controls enabling/disabling iGfx device.
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When AUTO mode selected, iGFX will be turned off when external graphics detected.
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If FALSE, all other polices can be ignored.
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<b>2 = AUTO</b>;
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0 = FALSE;
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1 = TRUE.
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**/
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UINT32 InternalGraphics : 2;
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/**
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Offset 28:5
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Pre-allocated memory for iGFX\n
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0 = 0MB,1 or 247 = 32MB,\n
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2 = 64MB,\n
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240 = 4MB, 241 = 8MB,\n
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242 = 12MB, 243 = 16MB,\n
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244 = 20MB, 245 = 24MB,\n
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246 = 28MB, 248 = 36MB,\n
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249 = 40MB, 250 = 44MB,\n
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251 = 48MB, 252 = 52MB,\n
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253 = 56MB,<b> 254 = 60MB</b>,\n
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<b>Note: enlarging pre-allocated memory for iGFX may need to reduce MmioSize because of 4GB boundary limitation</b>
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**/
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UINT32 IgdDvmt50PreAlloc : 8;
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UINT32 PanelPowerEnable : 1; ///< Offset 28:13 :<b>(Test)</b> Control for enabling/disabling VDD force bit (Required only for early enabling of eDP panel): 0=FALSE, <b>1=TRUE</b>
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UINT32 ApertureSize : 7; ///< Offser 28:14 :Graphics aperture size (256MB is the recommended size as per BWG) : 0=128MB, <b>1=256MB</b>, 3=512MB, 7=1024MB, 15=2048MB.
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UINT32 GtPsmiSupport : 1; ///< Offser 28:21 :PSMI support On/Off: <b>0=FALSE</b>, 1=TRUE
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UINT32 PsmiRegionSize : 3; ///< Offser 28:22 :Psmi region size: <b>0=32MB</b>, 1=288MB, 2=544MB, 3=800MB, 4=1056MB
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UINT32 RsvdBits0 : 7; ///< Offser 28:25 :Reserved for future use
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UINT32 GttMmAdr; ///< Offset 32 Temp Address of System Agent GTTMMADR : Default is <b>0xCF000000< / b>
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UINT16 GttSize; ///< Offset 36 Selection of iGFX GTT Memory size: 1=2MB, 2=4MB, <b>3=8MB</b>
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UINT8 Rsvd1[2]; ///< Offset 38 Reserved for DWORD alignment
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UINT32 GmAdr; ///< Offset 40 Temp Address of System Agent GMADR : Default is <b>0xD0000000< / b>
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UINT16 DeltaT12PowerCycleDelayPreMem; ///< Offset 44 Power Cycle Delay required for eDP as per VESA standard.<b>0 - 0 ms<\b>, 0xFFFF - Auto calculate to max 500 ms
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UINT8 Reserved[2]; ///< Offset 46 Reserved for future use.
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} GRAPHICS_PEI_PREMEM_CONFIG;
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#pragma pack(pop)
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#endif // _GRAPHICS_PEI_PREMEM_CONFIG_H_
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