diff options
Diffstat (limited to 'Vlv2DeviceRefCodePkg/AcpiTablesPCAT/Lpit/Lpit.aslc')
| -rw-r--r-- | Vlv2DeviceRefCodePkg/AcpiTablesPCAT/Lpit/Lpit.aslc | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/Vlv2DeviceRefCodePkg/AcpiTablesPCAT/Lpit/Lpit.aslc b/Vlv2DeviceRefCodePkg/AcpiTablesPCAT/Lpit/Lpit.aslc new file mode 100644 index 0000000000..ae81b2f4b1 --- /dev/null +++ b/Vlv2DeviceRefCodePkg/AcpiTablesPCAT/Lpit/Lpit.aslc @@ -0,0 +1,229 @@ +/*++
+
+Copyright (c) 1999 - 2014, Intel Corporation. All rights reserved
+
+ This program and the accompanying materials are licensed and made available under
+ the terms and conditions of the BSD License that accompanies this distribution.
+ The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php.
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+
+
+--*/
+
+//
+// Include files
+//
+
+#include <PiDxe.h>
+#include <IndustryStandard/Acpi50.h>
+
+
+
+//
+// LPIT Definitions
+//
+
+#define EFI_ACPI_LOW_POWER_IDLE_TABLE_REVISION 0x1
+
+//
+// Ensure proper structure formats
+//
+#pragma pack(1)
+
+typedef union _EFI_ACPI_LPI_STATE_FLAGS {
+ struct {
+ UINT32 Disabled :1;
+ UINT32 CounterUnavailable :1;
+ UINT32 Reserved :30;
+ };
+ UINT32 AsUlong;
+} EFI_ACPI_LPI_STATE_FLAGS, *PEFI_ACPI_LPI_STATE_FLAGS;
+
+// Only Mwait LPI here:
+
+typedef struct _EFI_ACPI_MWAIT_LPI_STATE_DESCRIPTOR {
+ UINT32 Type; // offset: 0
+ UINT32 Length; // offset: 4
+ UINT16 UniqueId; // offset: 8
+ UINT8 Reserved[2]; // offset: 9
+ EFI_ACPI_LPI_STATE_FLAGS Flags; // offset: 12
+ EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE EntryTrigger; // offset: 16
+ UINT32 Residency; // offset: 28
+ UINT32 Latency; // offset: 32
+ EFI_ACPI_2_0_GENERIC_ADDRESS_STRUCTURE ResidencyCounter; // offset: 36
+ UINT64 ResidencyCounterFrequency; //offset: 48
+} EFI_ACPI_MWAIT_LPI_STATE_DESCRIPTOR;
+
+
+//
+// Defines for LPIT table, some are VLV specific
+//
+
+
+// signature "LPIT"
+#define EFI_ACPI_LOW_POWER_IDLE_TABLE_SIGNATURE 0x5449504c
+
+#define EFI_ACPI_OEM_LPIT_REVISION 0x00000000
+
+#define EFI_ACPI_LOW_POWER_IDLE_MWAIT_TYPE 0x0
+#define EFI_ACPI_LOW_POWER_IDLE_DEFAULT_FLAG 0x0
+#define EFI_ACPI_LOW_POWER_IDLE_RES_FREQ_8K 0x8000 // 32768
+
+//
+// LPI state count (4 on VLV: S0ir, S0i1, S0i2, S0i3)
+//
+
+#define EFI_ACPI_VLV_LPI_STATE_COUNT 0x4
+
+//
+// LPI TRIGGER (HW C7 on VLV),
+// TOFIX!!!
+//
+#define EFI_ACPI_VLV_LPI_TRIGGER {0x7F,0x1,0x2,0x0,0x64}
+
+//
+// LPI residency counter (MMIO)
+//
+#define EFI_ACPI_VLV_LPI_RES_COUNTER0 {0x0,32,0x0,0x03,0xFED03080}
+#define EFI_ACPI_VLV_LPI_RES_COUNTER1 {0x0,32,0x0,0x03,0xFED03084}
+#define EFI_ACPI_VLV_LPI_RES_COUNTER2 {0x0,32,0x0,0x03,0xFED03088}
+#define EFI_ACPI_VLV_LPI_RES_COUNTER3 {0x0,32,0x0,0x03,0xFED0308C}
+
+//
+// LPI break-even residency in us - all match S0i3 residency
+// Residency estimate: Latency x 3
+//
+#define EFI_ACPI_VLV_LPI_MIN_RES0 15000
+#define EFI_ACPI_VLV_LPI_MIN_RES1 15000
+#define EFI_ACPI_VLV_LPI_MIN_RES2 15000
+#define EFI_ACPI_VLV_LPI_MIN_RES3 15000
+
+//
+// LPI latency in us - all match S0i3 latency
+//
+#define EFI_ACPI_VLV_LPI_LATENCY0 5000
+#define EFI_ACPI_VLV_LPI_LATENCY1 5000
+#define EFI_ACPI_VLV_LPI_LATENCY2 5000
+#define EFI_ACPI_VLV_LPI_LATENCY3 5000
+
+
+//
+// LPI ID
+//
+#define EFI_ACPI_VLV_LPI_UNIQUE_ID0 0
+#define EFI_ACPI_VLV_LPI_UNIQUE_ID1 1
+#define EFI_ACPI_VLV_LPI_UNIQUE_ID2 2
+#define EFI_ACPI_VLV_LPI_UNIQUE_ID3 3
+
+//
+// LPI ACPI table header
+//
+
+
+typedef struct _EFI_ACPI_LOW_POWER_IDLE_TABLE {
+ EFI_ACPI_DESCRIPTION_HEADER Header;
+ EFI_ACPI_MWAIT_LPI_STATE_DESCRIPTOR LpiStates[EFI_ACPI_VLV_LPI_STATE_COUNT];
+} EFI_ACPI_LOW_POWER_IDLE_TABLE;
+
+#pragma pack()
+
+EFI_ACPI_LOW_POWER_IDLE_TABLE Lpit = {
+
+ //
+ // Header
+ //
+
+
+ EFI_ACPI_LOW_POWER_IDLE_TABLE_SIGNATURE,
+ sizeof (EFI_ACPI_LOW_POWER_IDLE_TABLE),
+ EFI_ACPI_LOW_POWER_IDLE_TABLE_REVISION ,
+
+ //
+ // Checksum will be updated at runtime
+ //
+ 0x00,
+
+ //
+ // It is expected that these values will be updated at runtime
+ //
+ ' ', ' ', ' ', ' ', ' ', ' ',
+
+ 0,
+ EFI_ACPI_OEM_LPIT_REVISION,
+ 0,
+ 0,
+
+
+
+ //
+ // Descriptor
+ //
+ {
+ {
+ EFI_ACPI_LOW_POWER_IDLE_MWAIT_TYPE,
+ sizeof(EFI_ACPI_MWAIT_LPI_STATE_DESCRIPTOR),
+ EFI_ACPI_VLV_LPI_UNIQUE_ID0,
+ {0,0},
+ {EFI_ACPI_LOW_POWER_IDLE_DEFAULT_FLAG}, // Flags
+ EFI_ACPI_VLV_LPI_TRIGGER, //EntryTrigger
+ EFI_ACPI_VLV_LPI_MIN_RES0, //Residency
+ EFI_ACPI_VLV_LPI_LATENCY0, //Latency
+ EFI_ACPI_VLV_LPI_RES_COUNTER0, //ResidencyCounter
+ EFI_ACPI_LOW_POWER_IDLE_RES_FREQ_8K //Residency counter frequency
+ },
+ {
+ EFI_ACPI_LOW_POWER_IDLE_MWAIT_TYPE,
+ sizeof(EFI_ACPI_MWAIT_LPI_STATE_DESCRIPTOR),
+ EFI_ACPI_VLV_LPI_UNIQUE_ID1,
+ {0,0},
+ {EFI_ACPI_LOW_POWER_IDLE_DEFAULT_FLAG}, // Flags
+ EFI_ACPI_VLV_LPI_TRIGGER, //EntryTrigger
+ EFI_ACPI_VLV_LPI_MIN_RES1, //Residency
+ EFI_ACPI_VLV_LPI_LATENCY1, //Latency
+ EFI_ACPI_VLV_LPI_RES_COUNTER1, //ResidencyCounter
+ EFI_ACPI_LOW_POWER_IDLE_RES_FREQ_8K //Residency counter frequency
+ },
+ {
+ EFI_ACPI_LOW_POWER_IDLE_MWAIT_TYPE,
+ sizeof(EFI_ACPI_MWAIT_LPI_STATE_DESCRIPTOR),
+ EFI_ACPI_VLV_LPI_UNIQUE_ID2,
+ {0,0},
+ {EFI_ACPI_LOW_POWER_IDLE_DEFAULT_FLAG}, // Flags
+ EFI_ACPI_VLV_LPI_TRIGGER, //EntryTrigger
+ EFI_ACPI_VLV_LPI_MIN_RES2, //Residency
+ EFI_ACPI_VLV_LPI_LATENCY2, //Latency
+ EFI_ACPI_VLV_LPI_RES_COUNTER2, //ResidencyCounter
+ EFI_ACPI_LOW_POWER_IDLE_RES_FREQ_8K //Residency counter frequency
+ },
+ {
+ EFI_ACPI_LOW_POWER_IDLE_MWAIT_TYPE,
+ sizeof(EFI_ACPI_MWAIT_LPI_STATE_DESCRIPTOR),
+ EFI_ACPI_VLV_LPI_UNIQUE_ID3,
+ {0,0},
+ {EFI_ACPI_LOW_POWER_IDLE_DEFAULT_FLAG}, // Flags
+ EFI_ACPI_VLV_LPI_TRIGGER, //EntryTrigger
+ EFI_ACPI_VLV_LPI_MIN_RES3, //Residency
+ EFI_ACPI_VLV_LPI_LATENCY3, //Latency
+ EFI_ACPI_VLV_LPI_RES_COUNTER3, //ResidencyCounter
+ EFI_ACPI_LOW_POWER_IDLE_RES_FREQ_8K //Residency counter frequency
+ }
+ }
+
+};
+
+
+VOID*
+ReferenceAcpiTable (
+ VOID
+ )
+{
+ //
+ // Reference the table being generated to prevent the optimizer from
+ // removing the data structure from the executable
+ //
+ return (VOID*)&Lpit;
+}
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