/** @file * * Copyright (c) 2011-2015, ARM Limited. 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 * 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. * **/ #ifndef __ARMGIC_H #define __ARMGIC_H #include // // GIC Distributor // #define ARM_GIC_ICDDCR 0x000 // Distributor Control Register #define ARM_GIC_ICDICTR 0x004 // Interrupt Controller Type Register #define ARM_GIC_ICDIIDR 0x008 // Implementer Identification Register // Each reg base below repeats for Number of interrupts / 4 (see GIC spec) #define ARM_GIC_ICDISR 0x080 // Interrupt Security Registers #define ARM_GIC_ICDISER 0x100 // Interrupt Set-Enable Registers #define ARM_GIC_ICDICER 0x180 // Interrupt Clear-Enable Registers #define ARM_GIC_ICDSPR 0x200 // Interrupt Set-Pending Registers #define ARM_GIC_ICDICPR 0x280 // Interrupt Clear-Pending Registers #define ARM_GIC_ICDABR 0x300 // Active Bit Registers // Each reg base below repeats for Number of interrupts / 4 #define ARM_GIC_ICDIPR 0x400 // Interrupt Priority Registers // Each reg base below repeats for Number of interrupts #define ARM_GIC_ICDIPTR 0x800 // Interrupt Processor Target Registers #define ARM_GIC_ICDICFR 0xC00 // Interrupt Configuration Registers #define ARM_GIC_ICDPPISR 0xD00 // PPI Status register // just one of these #define ARM_GIC_ICDSGIR 0xF00 // Software Generated Interrupt Register // GICv3 specific registers #define ARM_GICD_IROUTER 0x6100 // Interrupt Routing Registers // the Affinity Routing Enable (ARE) bit in GICD_CTLR #define ARM_GIC_ICDDCR_ARE (1 << 4) // // GIC Redistributor // #define ARM_GICR_CTLR_FRAME_SIZE SIZE_64KB #define ARM_GICR_SGI_PPI_FRAME_SIZE SIZE_64KB // GIC Redistributor Control frame #define ARM_GICR_TYPER 0x0008 // Redistributor Type Register // GIC SGI & PPI Redistributor frame #define ARM_GICR_ISENABLER 0x0100 // Interrupt Set-Enable Registers #define ARM_GICR_ICENABLER 0x0180 // Interrupt Clear-Enable Registers // // GIC Cpu interface // #define ARM_GIC_ICCICR 0x00 // CPU Interface Control Register #define ARM_GIC_ICCPMR 0x04 // Interrupt Priority Mask Register #define ARM_GIC_ICCBPR 0x08 // Binary Point Register #define ARM_GIC_ICCIAR 0x0C // Interrupt Acknowledge Register #define ARM_GIC_ICCEIOR 0x10 // End Of Interrupt Register #define ARM_GIC_ICCRPR 0x14 // Running Priority Register #define ARM_GIC_ICCPIR 0x18 // Highest Pending Interrupt Register #define ARM_GIC_ICCABPR 0x1C // Aliased Binary Point Register #define ARM_GIC_ICCIIDR 0xFC // Identification Register #define ARM_GIC_ICDSGIR_FILTER_TARGETLIST 0x0 #define ARM_GIC_ICDSGIR_FILTER_EVERYONEELSE 0x1 #define ARM_GIC_ICDSGIR_FILTER_ITSELF 0x2 // Bit-masks to configure the CPU Interface Control register #define ARM_GIC_ICCICR_ENABLE_SECURE 0x01 #define ARM_GIC_ICCICR_ENABLE_NS 0x02 #define ARM_GIC_ICCICR_ACK_CTL 0x04 #define ARM_GIC_ICCICR_SIGNAL_SECURE_TO_FIQ 0x08 #define ARM_GIC_ICCICR_USE_SBPR 0x10 // Bit Mask for GICC_IIDR #define ARM_GIC_ICCIIDR_GET_PRODUCT_ID(IccIidr) (((IccIidr) >> 20) & 0xFFF) #define ARM_GIC_ICCIIDR_GET_ARCH_VERSION(IccIidr) (((IccIidr) >> 16) & 0xF) #define ARM_GIC_ICCIIDR_GET_REVISION(IccIidr) (((IccIidr) >> 12) & 0xF) #define ARM_GIC_ICCIIDR_GET_IMPLEMENTER(IccIidr) ((IccIidr) & 0xFFF) // Bit Mask for #define ARM_GIC_ICCIAR_ACKINTID 0x3FF UINTN EFIAPI ArmGicGetInterfaceIdentification ( IN INTN GicInterruptInterfaceBase ); // // GIC Secure interfaces // VOID EFIAPI ArmGicSetupNonSecure ( IN UINTN MpId, IN INTN GicDistributorBase, IN INTN GicInterruptInterfaceBase ); VOID EFIAPI ArmGicSetSecureInterrupts ( IN UINTN GicDistributorBase, IN UINTN* GicSecureInterruptMask, IN UINTN GicSecureInterruptMaskSize ); VOID EFIAPI ArmGicEnableInterruptInterface ( IN INTN GicInterruptInterfaceBase ); VOID EFIAPI ArmGicDisableInterruptInterface ( IN INTN GicInterruptInterfaceBase ); VOID EFIAPI ArmGicEnableDistributor ( IN INTN GicDistributorBase ); VOID EFIAPI ArmGicDisableDistributor ( IN INTN GicDistributorBase ); UINTN EFIAPI ArmGicGetMaxNumInterrupts ( IN INTN GicDistributorBase ); VOID EFIAPI ArmGicSendSgiTo ( IN INTN GicDistributorBase, IN INTN TargetListFilter, IN INTN CPUTargetList, IN INTN SgiId ); /* * Acknowledge and return the value of the Interrupt Acknowledge Register * * InterruptId is returned separately from the register value because in * the GICv2 the register value contains the CpuId and InterruptId while * in the GICv3 the register value is only the InterruptId. * * @param GicInterruptInterfaceBase Base Address of the GIC CPU Interface * @param InterruptId InterruptId read from the Interrupt Acknowledge Register * * @retval value returned by the Interrupt Acknowledge Register * */ UINTN EFIAPI ArmGicAcknowledgeInterrupt ( IN UINTN GicInterruptInterfaceBase, OUT UINTN *InterruptId ); VOID EFIAPI ArmGicEndOfInterrupt ( IN UINTN GicInterruptInterfaceBase, IN UINTN Source ); UINTN EFIAPI ArmGicSetPriorityMask ( IN INTN GicInterruptInterfaceBase, IN INTN PriorityMask ); VOID EFIAPI ArmGicEnableInterrupt ( IN UINTN GicDistributorBase, IN UINTN GicRedistributorBase, IN UINTN Source ); VOID EFIAPI ArmGicDisableInterrupt ( IN UINTN GicDistributorBase, IN UINTN GicRedistributorBase, IN UINTN Source ); BOOLEAN EFIAPI ArmGicIsInterruptEnabled ( IN UINTN GicDistributorBase, IN UINTN GicRedistributorBase, IN UINTN Source ); // // GIC revision 2 specific declarations // // Interrupts from 1020 to 1023 are considered as special interrupts (eg: spurious interrupts) #define ARM_GIC_IS_SPECIAL_INTERRUPTS(Interrupt) (((Interrupt) >= 1020) && ((Interrupt) <= 1023)) VOID EFIAPI ArmGicV2SetupNonSecure ( IN UINTN MpId, IN INTN GicDistributorBase, IN INTN GicInterruptInterfaceBase ); VOID EFIAPI ArmGicV2EnableInterruptInterface ( IN INTN GicInterruptInterfaceBase ); VOID EFIAPI ArmGicV2DisableInterruptInterface ( IN INTN GicInterruptInterfaceBase ); UINTN EFIAPI ArmGicV2AcknowledgeInterrupt ( IN UINTN GicInterruptInterfaceBase ); VOID EFIAPI ArmGicV2EndOfInterrupt ( IN UINTN GicInterruptInterfaceBase, IN UINTN Source ); // // GIC revision 3 specific declarations // #define ICC_SRE_EL2_SRE (1 << 0) #define ARM_GICD_IROUTER_IRM BIT31 UINT32 EFIAPI ArmGicV3GetControlSystemRegisterEnable ( VOID ); VOID EFIAPI ArmGicV3SetControlSystemRegisterEnable ( IN UINT32 ControlSystemRegisterEnable ); VOID EFIAPI ArmGicV3EnableInterruptInterface ( VOID ); VOID EFIAPI ArmGicV3DisableInterruptInterface ( VOID ); UINTN EFIAPI ArmGicV3AcknowledgeInterrupt ( VOID ); VOID EFIAPI ArmGicV3EndOfInterrupt ( IN UINTN Source ); VOID ArmGicV3SetBinaryPointer ( IN UINTN BinaryPoint ); VOID ArmGicV3SetPriorityMask ( IN UINTN Priority ); #endif