From 5f867ad00d499debbf22dee044b22e01b63e1ade Mon Sep 17 00:00:00 2001 From: mdkinney Date: Fri, 2 Sep 2011 02:42:19 +0000 Subject: Add generic HPET Timer DXE Driver and support libraries Signed-off-by: mdkinney Reviewed-by: li-elvin git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12259 6f19259b-4bc3-4df7-8a09-765794883524 --- UefiCpuPkg/Include/Library/LocalApicLib.h | 51 +++++++++++++- UefiCpuPkg/Include/Register/LocalApic.h | 33 ++++++++- UefiCpuPkg/Library/BaseXApicLib/BaseXApicLib.c | 79 +++++++++++++++++++++- .../BaseXApicX2ApicLib/BaseXApicX2ApicLib.c | 79 +++++++++++++++++++++- 4 files changed, 238 insertions(+), 4 deletions(-) diff --git a/UefiCpuPkg/Include/Library/LocalApicLib.h b/UefiCpuPkg/Include/Library/LocalApicLib.h index d68e0e48b9..52914fa9bd 100644 --- a/UefiCpuPkg/Include/Library/LocalApicLib.h +++ b/UefiCpuPkg/Include/Library/LocalApicLib.h @@ -4,7 +4,7 @@ Local APIC library assumes local APIC is enabled. It does not handles cases where local APIC is disabled. - Copyright (c) 2010, Intel Corporation. All rights reserved.
+ Copyright (c) 2010 - 2011, 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 which accompanies this distribution. The full text of the license may be found at @@ -319,5 +319,54 @@ SendApicEoi ( VOID ); +/** + Get the 32-bit address that a device should use to send a Message Signaled + Interrupt (MSI) to the Local APIC of the currently executing processor. + + @return 32-bit address used to send an MSI to the Local APIC. +**/ +UINT32 +EFIAPI +GetApicMsiAddress ( + VOID + ); + +/** + Get the 64-bit data value that a device should use to send a Message Signaled + Interrupt (MSI) to the Local APIC of the currently executing processor. + + If Vector is not in range 0x10..0xFE, then ASSERT(). + If DeliveryMode is not supported, then ASSERT(). + + @param Vector The 8-bit interrupt vector associated with the MSI. + Must be in the range 0x10..0xFE + @param DeliveryMode A 3-bit value that specifies how the recept of the MSI + is handled. The only supported values are: + 0: LOCAL_APIC_DELIVERY_MODE_FIXED + 1: LOCAL_APIC_DELIVERY_MODE_LOWEST_PRIORITY + 2: LOCAL_APIC_DELIVERY_MODE_SMI + 4: LOCAL_APIC_DELIVERY_MODE_NMI + 5: LOCAL_APIC_DELIVERY_MODE_INIT + 7: LOCAL_APIC_DELIVERY_MODE_EXTINT + + @param LevelTriggered TRUE specifies a level triggered interrupt. + FALSE specifies an edge triggered interrupt. + @param AssertionLevel Ignored if LevelTriggered is FALSE. + TRUE specifies a level triggered interrupt that active + when the interrupt line is asserted. + FALSE specifies a level triggered interrupt that active + when the interrupt line is deasserted. + + @return 64-bit data value used to send an MSI to the Local APIC. +**/ +UINT64 +EFIAPI +GetApicMsiValue ( + IN UINT8 Vector, + IN UINTN DeliveryMode, + IN BOOLEAN LevelTriggered, + IN BOOLEAN AssertionLevel + ); + #endif diff --git a/UefiCpuPkg/Include/Register/LocalApic.h b/UefiCpuPkg/Include/Register/LocalApic.h index 9f8f1bb8bb..bb0e211dc7 100644 --- a/UefiCpuPkg/Include/Register/LocalApic.h +++ b/UefiCpuPkg/Include/Register/LocalApic.h @@ -1,7 +1,7 @@ /** @file IA32 Local APIC Definitions. - Copyright (c) 2010, Intel Corporation. All rights reserved.
+ Copyright (c) 2010 - 2011, 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 which accompanies this distribution. The full text of the license may be found at @@ -179,5 +179,36 @@ typedef union { UINT32 Uint32; } LOCAL_APIC_LVT_LINT; +// +// MSI Address Register +// +typedef union { + struct { + UINT32 Reserved0:2; ///< Reserved + UINT32 DestinationMode:1; ///< Specifies the Destination Mode. + UINT32 RedirectionHint:1; ///< Specifies the Redirection Hint. + UINT32 Reserved1:8; ///< Reserved. + UINT32 DestinationId:8; ///< Specifies the Destination ID. + UINT32 BaseAddress:12; ///< Must be 0FEEH + } Bits; + UINT32 Uint32; +} LOCAL_APIC_MSI_ADDRESS; + +// +// MSI Address Register +// +typedef union { + struct { + UINT32 Vector:8; ///< Interrupt vector in range 010h..0FEH + UINT32 DeliveryMode:3; ///< Specifies the type of interrupt to be sent. + UINT32 Reserved0:3; ///< Reserved. + UINT32 Level:1; ///< 0:Deassert, 1:Assert. Ignored for Edge triggered interrupts. + UINT32 TriggerMode:1; ///< 0:Edge, 1:Level. + UINT32 Reserved1:16; ///< Reserved. + UINT32 Reserved2:32; ///< Reserved. + } Bits; + UINT64 Uint64; +} LOCAL_APIC_MSI_DATA; + #endif diff --git a/UefiCpuPkg/Library/BaseXApicLib/BaseXApicLib.c b/UefiCpuPkg/Library/BaseXApicLib/BaseXApicLib.c index 79a0fcd413..77c24deed0 100644 --- a/UefiCpuPkg/Library/BaseXApicLib/BaseXApicLib.c +++ b/UefiCpuPkg/Library/BaseXApicLib/BaseXApicLib.c @@ -3,7 +3,7 @@ This local APIC library instance supports xAPIC mode only. - Copyright (c) 2010, Intel Corporation. All rights reserved.
+ Copyright (c) 2010 - 2011, 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 which accompanies this distribution. The full text of the license may be found at @@ -675,3 +675,80 @@ SendApicEoi ( WriteLocalApicReg (XAPIC_EOI_OFFSET, 0); } +/** + Get the 32-bit address that a device should use to send a Message Signaled + Interrupt (MSI) to the Local APIC of the currently executing processor. + + @return 32-bit address used to send an MSI to the Local APIC. +**/ +UINT32 +EFIAPI +GetApicMsiAddress ( + VOID + ) +{ + LOCAL_APIC_MSI_ADDRESS MsiAddress; + + // + // Return address for an MSI interrupt to be delivered only to the APIC ID + // of the currently executing processor. + // + MsiAddress.Uint32 = 0; + MsiAddress.Bits.BaseAddress = 0xFEE; + MsiAddress.Bits.DestinationId = GetApicId (); + return MsiAddress.Uint32; +} + +/** + Get the 64-bit data value that a device should use to send a Message Signaled + Interrupt (MSI) to the Local APIC of the currently executing processor. + + If Vector is not in range 0x10..0xFE, then ASSERT(). + If DeliveryMode is not supported, then ASSERT(). + + @param Vector The 8-bit interrupt vector associated with the MSI. + Must be in the range 0x10..0xFE + @param DeliveryMode A 3-bit value that specifies how the recept of the MSI + is handled. The only supported values are: + 0: LOCAL_APIC_DELIVERY_MODE_FIXED + 1: LOCAL_APIC_DELIVERY_MODE_LOWEST_PRIORITY + 2: LOCAL_APIC_DELIVERY_MODE_SMI + 4: LOCAL_APIC_DELIVERY_MODE_NMI + 5: LOCAL_APIC_DELIVERY_MODE_INIT + 7: LOCAL_APIC_DELIVERY_MODE_EXTINT + + @param LevelTriggered TRUE specifies a level triggered interrupt. + FALSE specifies an edge triggered interrupt. + @param AssertionLevel Ignored if LevelTriggered is FALSE. + TRUE specifies a level triggered interrupt that active + when the interrupt line is asserted. + FALSE specifies a level triggered interrupt that active + when the interrupt line is deasserted. + + @return 64-bit data value used to send an MSI to the Local APIC. +**/ +UINT64 +EFIAPI +GetApicMsiValue ( + IN UINT8 Vector, + IN UINTN DeliveryMode, + IN BOOLEAN LevelTriggered, + IN BOOLEAN AssertionLevel + ) +{ + LOCAL_APIC_MSI_DATA MsiData; + + ASSERT (Vector >= 0x10 && Vector <= 0xFE); + ASSERT (DeliveryMode < 8 && DeliveryMode != 6 && DeliveryMode != 3); + + MsiData.Uint64 = 0; + MsiData.Bits.Vector = Vector; + MsiData.Bits.DeliveryMode = (UINT32)DeliveryMode; + if (LevelTriggered) { + MsiData.Bits.TriggerMode = 1; + if (AssertionLevel) { + MsiData.Bits.Level = 1; + } + } + return MsiData.Uint64; +} diff --git a/UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2ApicLib.c b/UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2ApicLib.c index 9f08f5d188..62201cd240 100644 --- a/UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2ApicLib.c +++ b/UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2ApicLib.c @@ -4,7 +4,7 @@ This local APIC library instance supports x2APIC capable processors which have xAPIC and x2APIC modes. - Copyright (c) 2010, Intel Corporation. All rights reserved.
+ Copyright (c) 2010 - 2011, 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 which accompanies this distribution. The full text of the license may be found at @@ -758,3 +758,80 @@ SendApicEoi ( WriteLocalApicReg (XAPIC_EOI_OFFSET, 0); } +/** + Get the 32-bit address that a device should use to send a Message Signaled + Interrupt (MSI) to the Local APIC of the currently executing processor. + + @return 32-bit address used to send an MSI to the Local APIC. +**/ +UINT32 +EFIAPI +GetApicMsiAddress ( + VOID + ) +{ + LOCAL_APIC_MSI_ADDRESS MsiAddress; + + // + // Return address for an MSI interrupt to be delivered only to the APIC ID + // of the currently executing processor. + // + MsiAddress.Uint32 = 0; + MsiAddress.Bits.BaseAddress = 0xFEE; + MsiAddress.Bits.DestinationId = GetApicId (); + return MsiAddress.Uint32; +} + +/** + Get the 64-bit data value that a device should use to send a Message Signaled + Interrupt (MSI) to the Local APIC of the currently executing processor. + + If Vector is not in range 0x10..0xFE, then ASSERT(). + If DeliveryMode is not supported, then ASSERT(). + + @param Vector The 8-bit interrupt vector associated with the MSI. + Must be in the range 0x10..0xFE + @param DeliveryMode A 3-bit value that specifies how the recept of the MSI + is handled. The only supported values are: + 0: LOCAL_APIC_DELIVERY_MODE_FIXED + 1: LOCAL_APIC_DELIVERY_MODE_LOWEST_PRIORITY + 2: LOCAL_APIC_DELIVERY_MODE_SMI + 4: LOCAL_APIC_DELIVERY_MODE_NMI + 5: LOCAL_APIC_DELIVERY_MODE_INIT + 7: LOCAL_APIC_DELIVERY_MODE_EXTINT + + @param LevelTriggered TRUE specifies a level triggered interrupt. + FALSE specifies an edge triggered interrupt. + @param AssertionLevel Ignored if LevelTriggered is FALSE. + TRUE specifies a level triggered interrupt that active + when the interrupt line is asserted. + FALSE specifies a level triggered interrupt that active + when the interrupt line is deasserted. + + @return 64-bit data value used to send an MSI to the Local APIC. +**/ +UINT64 +EFIAPI +GetApicMsiValue ( + IN UINT8 Vector, + IN UINTN DeliveryMode, + IN BOOLEAN LevelTriggered, + IN BOOLEAN AssertionLevel + ) +{ + LOCAL_APIC_MSI_DATA MsiData; + + ASSERT (Vector >= 0x10 && Vector <= 0xFE); + ASSERT (DeliveryMode < 8 && DeliveryMode != 6 && DeliveryMode != 3); + + MsiData.Uint64 = 0; + MsiData.Bits.Vector = Vector; + MsiData.Bits.DeliveryMode = (UINT32)DeliveryMode; + if (LevelTriggered) { + MsiData.Bits.TriggerMode = 1; + if (AssertionLevel) { + MsiData.Bits.Level = 1; + } + } + return MsiData.Uint64; +} -- cgit v1.2.3