Vlv2DeviceRefCodePkg/AcpiTablesPCAT/HOST_BUS.ASL

   1 /*++
   2
   3 Copyright (c)  1999  - 2014, Intel Corporation. All rights reserved
   4
   5   SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7
   8
   9 Module Name:
  10
  11   HOST_BUS.ASL
  12
  13 Abstract:
  14
  15   Baytrail PCI configuration space definition.
  16
  17 ---*/
  18 Device(VLVC)
  19 {
  20   Name(_ADR, 0x00000000)           // Device 0, Function 0
  21
  22   // Define various MCH Controller PCI Configuration Space
  23   // registers which will be used to dynamically produce all
  24   // resources in the Host Bus _CRS.
  25   OperationRegion(HBUS, PCI_Config, 0x00, 0xFF)
  26   Field(HBUS, DWordAcc, NoLock, Preserve)
  27   {
  28     Offset(0xD0),
  29     SMCR,   32,             // VLV Message Control Register (0xD0)
  30     Offset(0xD4),
  31     SMDR,   32,             // VLV Message Data Register (0xD4)
  32     Offset(0xD8),
  33     MCRX,   32,             // VLV Message Control Register Extension (0xD8)
  34   }
  35
  36   // Define a method to read a 32-bit register on the VLV Message bus.
  37   //  Arg0 = Port
  38   //  Arg1 = Register
  39   //
  40   //  Returns 32-bit register value
  41
  42   Method(RMBR, 2, Serialized)
  43   {
  44
  45     // Initiate regsiter read message on VLV Message Bus MCR
  46
  47     Or(ShiftLeft(Arg0, 16), ShiftLeft(Arg1, 8), Local0)
  48     Or(0x100000F0, Local0, SMCR)
  49
  50     // Read register value from Message Data Register
  51
  52     Return(SMDR)
  53   }
  54
  55
  56   // Define a method to write a 32-bit register on the VLV Message bus MDR.
  57   //  Arg0 = Port
  58   //  Arg1 = Register
  59   //  Arg2 = 32-bit value
  60
  61   Method(WMBR, 3, Serialized)
  62   {
  63
  64     // Write register value to Message Data Register
  65
  66     Store(Arg2, SMDR)
  67
  68     // Initiate register write message on VLV Message Bus
  69
  70     Or(ShiftLeft(Arg0, 16), ShiftLeft(Arg1, 8), Local0)
  71     Or(0x110000F0, Local0, SMCR)
  72   }
  73 }
  74
  75 //
  76 // BUS, I/O, and MMIO resources
  77 //
  78 Method(_CRS,0,Serialized)
  79 {
  80   //Update ISP0 reserved memory
  81   CreateDwordField(RES0, ^ISP0._MIN,ISMN)
  82   CreateDwordField(RES0, ^ISP0._MAX,ISMX)
  83   CreateDwordField(RES0, ^ISP0._LEN,ISLN)
  84   If (LEqual(ISPD,1))
  85   {
  86     Store (ISPA, ISMN)
  87     Add (ISMN, ISLN, ISMX)
  88     Subtract(ISMX, 1, ISMX)
  89   } Else
  90   {
  91     Store (0, ISMN)
  92     Store (0, ISMX)
  93     Store (0, ISLN)
  94   }
  95
  96   //PCI MMIO SPACE
  97   CreateDwordField(RES0, ^PM01._MIN,M1MN)
  98   CreateDwordField(RES0, ^PM01._MAX,M1MX)
  99   CreateDwordField(RES0, ^PM01._LEN,M1LN)
 100
 101   //Get dBMBOUND Base
 102   And(BMBD, 0xFF000000, M1MN)
 103
 104   //Get ECBASE
 105   Store(PCIT, M1MX)
 106   Add(Subtract(M1MX, M1MN), 1, M1LN)
 107   Subtract(M1MX, 1, M1MX)
 108
 109   // Create pointers to Gfx Stolen Memory Sizing values.
 110   CreateDwordField(RES0, ^STOM._MIN,GSMN)
 111   CreateDwordField(RES0, ^STOM._MAX,GSMX)
 112   CreateDwordField(RES0, ^STOM._LEN,GSLN)
 113
 114   If (LNotEqual (\_SB.PCI0.GFX0.GSTM, 0xFFFFFFFF))
 115   {
 116     Store(0x00, GSMN) //Read the Stolen memory base from B0:D2:F0:R5C
 117   } else
 118   {
 119     Store(\_SB.PCI0.GFX0.GSTM, GSMN) //Read the Stolen memory base from B0:D2:F0:R5C
 120   }
 121   If (LNotEqual (\_SB.PCI0.GFX0.GUMA, 0xFFFFFFFF))
 122   {
 123     Store(0x00, GSLN) //Read the Stolen memory base from B0:D2:F0:R5C
 124   } else
 125   {
 126     ShiftLeft(\_SB.PCI0.GFX0.GUMA, 25, GSLN) //Read Stolen memory base form B0:D2:F0:R50
 127   }
 128   Add(GSMN, GSLN, GSMX) //Store the Stolen Memory Size
 129   Subtract(GSMX, 1, GSMX)
 130
 131   Return(RES0)
 132 }
 133
 134 Name( RES0,ResourceTemplate()
 135 {
 136   WORDBusNumber (          // Bus number resource (0); the bridge produces bus numbers for its subsequent buses
 137     ResourceProducer,      // bit 0 of general flags is 1
 138     MinFixed,              // Range is fixed
 139     MaxFixed,              // Range is fixed
 140     PosDecode,             // PosDecode
 141     0x0000,                // Granularity
 142     0x0000,                // Min
 143     0x00FF,                // Max
 144     0x0000,                // Translation
 145     0x0100                 // Range Length = Max-Min+1
 146   )
 147
 148   IO (Decode16, 0x70, 0x77, 0x01, 0x08)         //Consumed resource (0xCF8-0xCFF)
 149   IO (Decode16, 0xCF8, 0xCF8, 0x01, 0x08)       //Consumed resource (0xCF8-0xCFF)
 150
 151   WORDIO (                 // Consumed-and-produced resource (all I/O below CF8)
 152     ResourceProducer,      // bit 0 of general flags is 0
 153     MinFixed,              // Range is fixed
 154     MaxFixed,              // Range is fixed
 155     PosDecode,
 156     EntireRange,
 157     0x0000,                // Granularity
 158     0x0000,                // Min
 159     0x006F,                // Max
 160     0x0000,                // Translation
 161     0x0070                 // Range Length
 162   )
 163
 164   WORDIO (                 // Consumed-and-produced resource
 165     ResourceProducer,      // bit 0 of general flags is 0
 166     MinFixed,              // Range is fixed
 167     MaxFixed,              // Range is fixed
 168     PosDecode,
 169     EntireRange,
 170     0x0000,                // Granularity
 171     0x0078,                // Min
 172     0x0CF7,                // Max
 173     0x0000,                // Translation
 174     0x0C80                 // Range Length
 175   )
 176
 177   WORDIO (                 // Consumed-and-produced resource (all I/O above CFF)
 178     ResourceProducer,      // bit 0 of general flags is 0
 179     MinFixed,              // Range is fixed
 180     MaxFixed,              // Range is fixed
 181     PosDecode,
 182     EntireRange,
 183     0x0000,                // Granularity
 184     0x0D00,                // Min
 185     0xFFFF,                // Max
 186     0x0000,                // Translation
 187     0xF300                 // Range Length
 188   )
 189
 190   DWORDMEMORY (            // Descriptor for legacy VGA video RAM
 191     ResourceProducer,      // bit 0 of general flags is 0
 192     PosDecode,
 193     MinFixed,              // Range is fixed
 194     MaxFixed,              // Range is fixed
 195     Cacheable,
 196     ReadWrite,
 197     0x00000000,            // Granularity
 198     0x000A0000,            // Min
 199     0x000BFFFF,            // Max
 200     0x00000000,            // Translation
 201     0x00020000             // Range Length
 202   )
 203
 204   DWORDMEMORY (            // Descriptor for legacy OptionRom
 205     ResourceProducer,      // bit 0 of general flags is 0
 206     PosDecode,
 207     MinFixed,              // Range is fixed
 208     MaxFixed,              // Range is fixed
 209     Cacheable,
 210     ReadWrite,
 211     0x00000000,            // Granularity
 212     0x000C0000,            // Min
 213     0x000DFFFF,            // Max
 214     0x00000000,            // Translation
 215     0x00020000             // Range Length
 216   )
 217
 218   DWORDMEMORY (            // Descriptor for BIOS Area
 219     ResourceProducer,      // bit 0 of general flags is 0
 220     PosDecode,
 221     MinFixed,              // Range is fixed
 222     MaxFixed,              // Range is fixed
 223     Cacheable,
 224     ReadWrite,
 225     0x00000000,            // Granularity
 226     0x000E0000,            // Min
 227     0x000FFFFF,            // Max
 228     0x00000000,            // Translation
 229     0x00020000             // Range Length
 230   )
 231
 232   DWORDMEMORY (            // Descriptor for ISP0 reserved Mem
 233     ResourceProducer,      // bit 0 of general flags is 0
 234     PosDecode,
 235     MinFixed,              // Range is fixed
 236     MaxFixed,              // Range is fixed
 237     Cacheable,
 238     ReadWrite,
 239     0x00000000,            // Granularity
 240     0x7A000000,            // Min
 241     0x7A3FFFFF,            // Max
 242     0x00000000,            // Translation
 243     0x00400000             // Range Length
 244     ,,,
 245     ISP0
 246   )
 247
 248   DWORDMEMORY (            // Descriptor for VGA Stolen Mem
 249     ResourceProducer,      // bit 0 of general flags is 0
 250     PosDecode,
 251     MinFixed,              // Range is fixed
 252     MaxFixed,              // Range is fixed
 253     Cacheable,
 254     ReadWrite,
 255     0x00000000,            // Granularity
 256     0x7C000000,            // Min
 257     0x7FFFFFFF,            // Max
 258     0x00000000,            // Translation
 259     0x04000000             // Range Length
 260     ,,,
 261     STOM
 262   )
 263
 264   DWORDMEMORY (            // Descriptor for PCI MMIO
 265     ResourceProducer,      // bit 0 of general flags is 0
 266     PosDecode,
 267     MinFixed,              // Range is fixed
 268     MaxFixed,              // Range is fixed
 269     Cacheable,
 270     ReadWrite,
 271     0x00000000,            // Granularity
 272     0x80000000,            // Min
 273     0xDFFFFFFF,            // Max
 274     0x00000000,            // Translation
 275     0x60000000             // Range Length
 276     ,,,
 277     PM01
 278   )
 279 })
 280
 281 //Name(GUID,UUID("33DB4D5B-1FF7-401C-9657-7441C03DD766"))
 282 Name(GUID,Buffer()
 283 {
 284   0x5b, 0x4d, 0xdb, 0x33,
 285   0xf7, 0x1f,
 286   0x1c, 0x40,
 287   0x96, 0x57,
 288   0x74, 0x41, 0xc0, 0x3d, 0xd7, 0x66
 289 })
 290
 291
 292 Name(SUPP,0)    // PCI _OSC Support Field value
 293 Name(CTRL,0)    // PCI _OSC Control Field value
 294
 295 Method(_OSC,4,Serialized)
 296 {
 297   // Check for proper UUID
 298   // Save the capabilities buffer
 299   Store(Arg3,Local0)
 300
 301   // Create DWord-adressable fields from the Capabilties Buffer
 302   CreateDWordField(Local0,0,CDW1)
 303   CreateDWordField(Local0,4,CDW2)
 304   CreateDWordField(Local0,8,CDW3)
 305
 306   // Check for proper UUID
 307   If(LAnd(LEqual(Arg0,GUID),NEXP))
 308   {
 309     // Save Capabilities DWord2 & 3
 310     Store(CDW2,SUPP)
 311     Store(CDW3,CTRL)
 312
 313     If(Not(And(CDW1,1)))    // Query flag clear?
 314     {
 315       // Disable GPEs for features granted native control.
 316       If(And(CTRL,0x02))
 317       {
 318         NHPG()
 319       }
 320       If(And(CTRL,0x04))      // PME control granted?
 321       {
 322         NPME()
 323       }
 324     }
 325
 326     If(LNotEqual(Arg1,One))
 327     {
 328       // Unknown revision
 329       Or(CDW1,0x08,CDW1)
 330     }
 331
 332     If(LNotEqual(CDW3,CTRL))
 333     {
 334       // Capabilities bits were masked
 335       Or(CDW1,0x10,CDW1)
 336     }
 337     // Update DWORD3 in the buffer
 338         And(CTRL,0xfe,CTRL)
 339     Store(CTRL,CDW3)
 340     Store(CTRL,OSCC)
 341     Return(Local0)
 342   } Else
 343   {
 344     Or(CDW1,4,CDW1)         // Unrecognized UUID
 345     Return(Local0)
 346   }
 347 }       // End _OSC