include/linux/irqchip/arm-gic-v3.h - kernel/msm-4.19 - Gitiles

 /*
  * Copyright (C) 2013, 2014 ARM Limited, All Rights Reserved.
  * Author: Marc Zyngier <marc.zyngier@arm.com>
  *
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 #ifndef __LINUX_IRQCHIP_ARM_GIC_V3_H
 #define __LINUX_IRQCHIP_ARM_GIC_V3_H

 /*
  * Distributor registers. We assume we're running non-secure, with ARE
  * being set. Secure-only and non-ARE registers are not described.
  */
 #define GICD_CTLR			0x0000
 #define GICD_TYPER			0x0004
 #define GICD_IIDR			0x0008
 #define GICD_STATUSR			0x0010
 #define GICD_SETSPI_NSR			0x0040
 #define GICD_CLRSPI_NSR			0x0048
 #define GICD_SETSPI_SR			0x0050
 #define GICD_CLRSPI_SR			0x0058
 #define GICD_SEIR			0x0068
 #define GICD_IGROUPR			0x0080
 #define GICD_ISENABLER			0x0100
 #define GICD_ICENABLER			0x0180
 #define GICD_ISPENDR			0x0200
 #define GICD_ICPENDR			0x0280
 #define GICD_ISACTIVER			0x0300
 #define GICD_ICACTIVER			0x0380
 #define GICD_IPRIORITYR			0x0400
 #define GICD_ICFGR			0x0C00
 #define GICD_IGRPMODR			0x0D00
 #define GICD_NSACR			0x0E00
 #define GICD_IROUTER			0x6000
 #define GICD_IDREGS			0xFFD0
 #define GICD_PIDR2			0xFFE8

 /*
  * Those registers are actually from GICv2, but the spec demands that they
  * are implemented as RES0 if ARE is 1 (which we do in KVM's emulated GICv3).
  */
 #define GICD_ITARGETSR			0x0800
 #define GICD_SGIR			0x0F00
 #define GICD_CPENDSGIR			0x0F10
 #define GICD_SPENDSGIR			0x0F20

 #define GICD_CTLR_RWP			(1U << 31)
 #define GICD_CTLR_DS			(1U << 6)
 #define GICD_CTLR_ARE_NS		(1U << 4)
 #define GICD_CTLR_ENABLE_G1A		(1U << 1)
 #define GICD_CTLR_ENABLE_G1		(1U << 0)

 /*
  * In systems with a single security state (what we emulate in KVM)
  * the meaning of the interrupt group enable bits is slightly different
  */
 #define GICD_CTLR_ENABLE_SS_G1		(1U << 1)
 #define GICD_CTLR_ENABLE_SS_G0		(1U << 0)

 #define GICD_TYPER_LPIS			(1U << 17)
 #define GICD_TYPER_MBIS			(1U << 16)

 #define GICD_TYPER_ID_BITS(typer)	((((typer) >> 19) & 0x1f) + 1)
 #define GICD_TYPER_IRQS(typer)		((((typer) & 0x1f) + 1) * 32)

 #define GICD_IROUTER_SPI_MODE_ONE	(0U << 31)
 #define GICD_IROUTER_SPI_MODE_ANY	(1U << 31)

 #define GIC_PIDR2_ARCH_MASK		0xf0
 #define GIC_PIDR2_ARCH_GICv3		0x30
 #define GIC_PIDR2_ARCH_GICv4		0x40

 #define GIC_V3_DIST_SIZE		0x10000

 /*
  * Re-Distributor registers, offsets from RD_base
  */
 #define GICR_CTLR			GICD_CTLR
 #define GICR_IIDR			0x0004
 #define GICR_TYPER			0x0008
 #define GICR_STATUSR			GICD_STATUSR
 #define GICR_WAKER			0x0014
 #define GICR_SETLPIR			0x0040
 #define GICR_CLRLPIR			0x0048
 #define GICR_SEIR			GICD_SEIR
 #define GICR_PROPBASER			0x0070
 #define GICR_PENDBASER			0x0078
 #define GICR_INVLPIR			0x00A0
 #define GICR_INVALLR			0x00B0
 #define GICR_SYNCR			0x00C0
 #define GICR_MOVLPIR			0x0100
 #define GICR_MOVALLR			0x0110
 #define GICR_IDREGS			GICD_IDREGS
 #define GICR_PIDR2			GICD_PIDR2

 #define GICR_CTLR_ENABLE_LPIS		(1UL << 0)

 #define GICR_TYPER_CPU_NUMBER(r)	(((r) >> 8) & 0xffff)

 #define GICR_WAKER_ProcessorSleep	(1U << 1)
 #define GICR_WAKER_ChildrenAsleep	(1U << 2)

 #define GIC_BASER_CACHE_nCnB		0ULL
 #define GIC_BASER_CACHE_SameAsInner	0ULL
 #define GIC_BASER_CACHE_nC		1ULL
 #define GIC_BASER_CACHE_RaWt		2ULL
 #define GIC_BASER_CACHE_RaWb		3ULL
 #define GIC_BASER_CACHE_WaWt		4ULL
 #define GIC_BASER_CACHE_WaWb		5ULL
 #define GIC_BASER_CACHE_RaWaWt		6ULL
 #define GIC_BASER_CACHE_RaWaWb		7ULL
 #define GIC_BASER_CACHE_MASK		7ULL
 #define GIC_BASER_NonShareable		0ULL
 #define GIC_BASER_InnerShareable	1ULL
 #define GIC_BASER_OuterShareable	2ULL
 #define GIC_BASER_SHAREABILITY_MASK	3ULL

 #define GIC_BASER_CACHEABILITY(reg, inner_outer, type)			\
 	(GIC_BASER_CACHE_##type << reg##_##inner_outer##_CACHEABILITY_SHIFT)

 #define GIC_BASER_SHAREABILITY(reg, type)				\
 	(GIC_BASER_##type << reg##_SHAREABILITY_SHIFT)

 /* encode a size field of width @w containing @n - 1 units */
 #define GIC_ENCODE_SZ(n, w) (((unsigned long)(n) - 1) & GENMASK_ULL(((w) - 1), 0))

 #define GICR_PROPBASER_SHAREABILITY_SHIFT		(10)
 #define GICR_PROPBASER_INNER_CACHEABILITY_SHIFT		(7)
 #define GICR_PROPBASER_OUTER_CACHEABILITY_SHIFT		(56)
 #define GICR_PROPBASER_SHAREABILITY_MASK				\
 	GIC_BASER_SHAREABILITY(GICR_PROPBASER, SHAREABILITY_MASK)
 #define GICR_PROPBASER_INNER_CACHEABILITY_MASK				\
 	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, MASK)
 #define GICR_PROPBASER_OUTER_CACHEABILITY_MASK				\
 	GIC_BASER_CACHEABILITY(GICR_PROPBASER, OUTER, MASK)
 #define GICR_PROPBASER_CACHEABILITY_MASK GICR_PROPBASER_INNER_CACHEABILITY_MASK

 #define GICR_PROPBASER_InnerShareable					\
 	GIC_BASER_SHAREABILITY(GICR_PROPBASER, InnerShareable)

 #define GICR_PROPBASER_nCnB	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, nCnB)
 #define GICR_PROPBASER_nC 	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, nC)
 #define GICR_PROPBASER_RaWt	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWt)
 #define GICR_PROPBASER_RaWb	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWt)
 #define GICR_PROPBASER_WaWt	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, WaWt)
 #define GICR_PROPBASER_WaWb	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, WaWb)
 #define GICR_PROPBASER_RaWaWt	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWaWt)
 #define GICR_PROPBASER_RaWaWb	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWaWb)

 #define GICR_PROPBASER_IDBITS_MASK			(0x1f)
 #define GICR_PROPBASER_ADDRESS(x)	((x) & GENMASK_ULL(51, 12))
 #define GICR_PENDBASER_ADDRESS(x)	((x) & GENMASK_ULL(51, 16))

 #define GICR_PENDBASER_SHAREABILITY_SHIFT		(10)
 #define GICR_PENDBASER_INNER_CACHEABILITY_SHIFT		(7)
 #define GICR_PENDBASER_OUTER_CACHEABILITY_SHIFT		(56)
 #define GICR_PENDBASER_SHAREABILITY_MASK				\
 	GIC_BASER_SHAREABILITY(GICR_PENDBASER, SHAREABILITY_MASK)
 #define GICR_PENDBASER_INNER_CACHEABILITY_MASK				\
 	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, MASK)
 #define GICR_PENDBASER_OUTER_CACHEABILITY_MASK				\
 	GIC_BASER_CACHEABILITY(GICR_PENDBASER, OUTER, MASK)
 #define GICR_PENDBASER_CACHEABILITY_MASK GICR_PENDBASER_INNER_CACHEABILITY_MASK

 #define GICR_PENDBASER_InnerShareable					\
 	GIC_BASER_SHAREABILITY(GICR_PENDBASER, InnerShareable)

 #define GICR_PENDBASER_nCnB	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, nCnB)
 #define GICR_PENDBASER_nC 	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, nC)
 #define GICR_PENDBASER_RaWt	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWt)
 #define GICR_PENDBASER_RaWb	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWt)
 #define GICR_PENDBASER_WaWt	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, WaWt)
 #define GICR_PENDBASER_WaWb	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, WaWb)
 #define GICR_PENDBASER_RaWaWt	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWaWt)
 #define GICR_PENDBASER_RaWaWb	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWaWb)

 #define GICR_PENDBASER_PTZ				BIT_ULL(62)

 /*
  * Re-Distributor registers, offsets from SGI_base
  */
 #define GICR_IGROUPR0			GICD_IGROUPR
 #define GICR_ISENABLER0			GICD_ISENABLER
 #define GICR_ICENABLER0			GICD_ICENABLER
 #define GICR_ISPENDR0			GICD_ISPENDR
 #define GICR_ICPENDR0			GICD_ICPENDR
 #define GICR_ISACTIVER0			GICD_ISACTIVER
 #define GICR_ICACTIVER0			GICD_ICACTIVER
 #define GICR_IPRIORITYR0		GICD_IPRIORITYR
 #define GICR_ICFGR0			GICD_ICFGR
 #define GICR_IGRPMODR0			GICD_IGRPMODR
 #define GICR_NSACR			GICD_NSACR

 #define GICR_TYPER_PLPIS		(1U << 0)
 #define GICR_TYPER_VLPIS		(1U << 1)
 #define GICR_TYPER_LAST			(1U << 4)

 #define GIC_V3_REDIST_SIZE		0x20000

 #define LPI_PROP_GROUP1			(1 << 1)
 #define LPI_PROP_ENABLED		(1 << 0)

 /*
  * ITS registers, offsets from ITS_base
  */
 #define GITS_CTLR			0x0000
 #define GITS_IIDR			0x0004
 #define GITS_TYPER			0x0008
 #define GITS_CBASER			0x0080
 #define GITS_CWRITER			0x0088
 #define GITS_CREADR			0x0090
 #define GITS_BASER			0x0100
 #define GITS_IDREGS_BASE		0xffd0
 #define GITS_PIDR0			0xffe0
 #define GITS_PIDR1			0xffe4
 #define GITS_PIDR2			GICR_PIDR2
 #define GITS_PIDR4			0xffd0
 #define GITS_CIDR0			0xfff0
 #define GITS_CIDR1			0xfff4
 #define GITS_CIDR2			0xfff8
 #define GITS_CIDR3			0xfffc

 #define GITS_TRANSLATER			0x10040

 #define GITS_CTLR_ENABLE		(1U << 0)
 #define GITS_CTLR_QUIESCENT		(1U << 31)

 #define GITS_TYPER_PLPIS		(1UL << 0)
 #define GITS_TYPER_ITT_ENTRY_SIZE_SHIFT	4
 #define GITS_TYPER_IDBITS_SHIFT		8
 #define GITS_TYPER_DEVBITS_SHIFT	13
 #define GITS_TYPER_DEVBITS(r)		((((r) >> GITS_TYPER_DEVBITS_SHIFT) & 0x1f) + 1)
 #define GITS_TYPER_PTA			(1UL << 19)
 #define GITS_TYPER_HWCOLLCNT_SHIFT	24

 #define GITS_IIDR_REV_SHIFT		12
 #define GITS_IIDR_REV_MASK		(0xf << GITS_IIDR_REV_SHIFT)
 #define GITS_IIDR_REV(r)		(((r) >> GITS_IIDR_REV_SHIFT) & 0xf)
 #define GITS_IIDR_PRODUCTID_SHIFT	24

 #define GITS_CBASER_VALID			(1ULL << 63)
 #define GITS_CBASER_SHAREABILITY_SHIFT		(10)
 #define GITS_CBASER_INNER_CACHEABILITY_SHIFT	(59)
 #define GITS_CBASER_OUTER_CACHEABILITY_SHIFT	(53)
 #define GITS_CBASER_SHAREABILITY_MASK					\
 	GIC_BASER_SHAREABILITY(GITS_CBASER, SHAREABILITY_MASK)
 #define GITS_CBASER_INNER_CACHEABILITY_MASK				\
 	GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, MASK)
 #define GITS_CBASER_OUTER_CACHEABILITY_MASK				\
 	GIC_BASER_CACHEABILITY(GITS_CBASER, OUTER, MASK)
 #define GITS_CBASER_CACHEABILITY_MASK GITS_CBASER_INNER_CACHEABILITY_MASK

 #define GITS_CBASER_InnerShareable					\
 	GIC_BASER_SHAREABILITY(GITS_CBASER, InnerShareable)

 #define GITS_CBASER_nCnB	GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, nCnB)
 #define GITS_CBASER_nC		GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, nC)
 #define GITS_CBASER_RaWt	GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWt)
 #define GITS_CBASER_RaWb	GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWt)
 #define GITS_CBASER_WaWt	GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, WaWt)
 #define GITS_CBASER_WaWb	GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, WaWb)
 #define GITS_CBASER_RaWaWt	GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWaWt)
 #define GITS_CBASER_RaWaWb	GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWaWb)

 #define GITS_BASER_NR_REGS		8

 #define GITS_BASER_VALID			(1ULL << 63)
 #define GITS_BASER_INDIRECT			(1ULL << 62)

 #define GITS_BASER_INNER_CACHEABILITY_SHIFT	(59)
 #define GITS_BASER_OUTER_CACHEABILITY_SHIFT	(53)
 #define GITS_BASER_INNER_CACHEABILITY_MASK				\
 	GIC_BASER_CACHEABILITY(GITS_BASER, INNER, MASK)
 #define GITS_BASER_CACHEABILITY_MASK		GITS_BASER_INNER_CACHEABILITY_MASK
 #define GITS_BASER_OUTER_CACHEABILITY_MASK				\
 	GIC_BASER_CACHEABILITY(GITS_BASER, OUTER, MASK)
 #define GITS_BASER_SHAREABILITY_MASK					\
 	GIC_BASER_SHAREABILITY(GITS_BASER, SHAREABILITY_MASK)

 #define GITS_BASER_nCnB		GIC_BASER_CACHEABILITY(GITS_BASER, INNER, nCnB)
 #define GITS_BASER_nC		GIC_BASER_CACHEABILITY(GITS_BASER, INNER, nC)
 #define GITS_BASER_RaWt		GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWt)
 #define GITS_BASER_RaWb		GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWt)
 #define GITS_BASER_WaWt		GIC_BASER_CACHEABILITY(GITS_BASER, INNER, WaWt)
 #define GITS_BASER_WaWb		GIC_BASER_CACHEABILITY(GITS_BASER, INNER, WaWb)
 #define GITS_BASER_RaWaWt	GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWaWt)
 #define GITS_BASER_RaWaWb	GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWaWb)

 #define GITS_BASER_TYPE_SHIFT			(56)
 #define GITS_BASER_TYPE(r)		(((r) >> GITS_BASER_TYPE_SHIFT) & 7)
 #define GITS_BASER_ENTRY_SIZE_SHIFT		(48)
 #define GITS_BASER_ENTRY_SIZE(r)	((((r) >> GITS_BASER_ENTRY_SIZE_SHIFT) & 0x1f) + 1)
 #define GITS_BASER_ENTRY_SIZE_MASK	GENMASK_ULL(52, 48)
 #define GITS_BASER_SHAREABILITY_SHIFT	(10)
 #define GITS_BASER_InnerShareable					\
 	GIC_BASER_SHAREABILITY(GITS_BASER, InnerShareable)
 #define GITS_BASER_PAGE_SIZE_SHIFT	(8)
 #define GITS_BASER_PAGE_SIZE_4K		(0ULL << GITS_BASER_PAGE_SIZE_SHIFT)
 #define GITS_BASER_PAGE_SIZE_16K	(1ULL << GITS_BASER_PAGE_SIZE_SHIFT)
 #define GITS_BASER_PAGE_SIZE_64K	(2ULL << GITS_BASER_PAGE_SIZE_SHIFT)
 #define GITS_BASER_PAGE_SIZE_MASK	(3ULL << GITS_BASER_PAGE_SIZE_SHIFT)
 #define GITS_BASER_PAGES_MAX		256
 #define GITS_BASER_PAGES_SHIFT		(0)
 #define GITS_BASER_NR_PAGES(r)		(((r) & 0xff) + 1)

 #define GITS_BASER_TYPE_NONE		0
 #define GITS_BASER_TYPE_DEVICE		1
 #define GITS_BASER_TYPE_VCPU		2
 #define GITS_BASER_TYPE_RESERVED3	3
 #define GITS_BASER_TYPE_COLLECTION	4
 #define GITS_BASER_TYPE_RESERVED5	5
 #define GITS_BASER_TYPE_RESERVED6	6
 #define GITS_BASER_TYPE_RESERVED7	7

 #define GITS_LVL1_ENTRY_SIZE           (8UL)

 /*
  * ITS commands
  */
 #define GITS_CMD_MAPD			0x08
 #define GITS_CMD_MAPC			0x09
 #define GITS_CMD_MAPTI			0x0a
 #define GITS_CMD_MAPI			0x0b
 #define GITS_CMD_MOVI			0x01
 #define GITS_CMD_DISCARD		0x0f
 #define GITS_CMD_INV			0x0c
 #define GITS_CMD_MOVALL			0x0e
 #define GITS_CMD_INVALL			0x0d
 #define GITS_CMD_INT			0x03
 #define GITS_CMD_CLEAR			0x04
 #define GITS_CMD_SYNC			0x05

 /*
  * ITS error numbers
  */
 #define E_ITS_MOVI_UNMAPPED_INTERRUPT		0x010107
 #define E_ITS_MOVI_UNMAPPED_COLLECTION		0x010109
 #define E_ITS_INT_UNMAPPED_INTERRUPT		0x010307
 #define E_ITS_CLEAR_UNMAPPED_INTERRUPT		0x010507
 #define E_ITS_MAPD_DEVICE_OOR			0x010801
 #define E_ITS_MAPD_ITTSIZE_OOR			0x010802
 #define E_ITS_MAPC_PROCNUM_OOR			0x010902
 #define E_ITS_MAPC_COLLECTION_OOR		0x010903
 #define E_ITS_MAPTI_UNMAPPED_DEVICE		0x010a04
 #define E_ITS_MAPTI_ID_OOR			0x010a05
 #define E_ITS_MAPTI_PHYSICALID_OOR		0x010a06
 #define E_ITS_INV_UNMAPPED_INTERRUPT		0x010c07
 #define E_ITS_INVALL_UNMAPPED_COLLECTION	0x010d09
 #define E_ITS_MOVALL_PROCNUM_OOR		0x010e01
 #define E_ITS_DISCARD_UNMAPPED_INTERRUPT	0x010f07

 /*
  * CPU interface registers
  */
 #define ICC_CTLR_EL1_EOImode_SHIFT	(1)
 #define ICC_CTLR_EL1_EOImode_drop_dir	(0U << ICC_CTLR_EL1_EOImode_SHIFT)
 #define ICC_CTLR_EL1_EOImode_drop	(1U << ICC_CTLR_EL1_EOImode_SHIFT)
 #define ICC_CTLR_EL1_EOImode_MASK	(1 << ICC_CTLR_EL1_EOImode_SHIFT)
 #define ICC_CTLR_EL1_CBPR_SHIFT		0
 #define ICC_CTLR_EL1_CBPR_MASK		(1 << ICC_CTLR_EL1_CBPR_SHIFT)
 #define ICC_CTLR_EL1_PRI_BITS_SHIFT	8
 #define ICC_CTLR_EL1_PRI_BITS_MASK	(0x7 << ICC_CTLR_EL1_PRI_BITS_SHIFT)
 #define ICC_CTLR_EL1_ID_BITS_SHIFT	11
 #define ICC_CTLR_EL1_ID_BITS_MASK	(0x7 << ICC_CTLR_EL1_ID_BITS_SHIFT)
 #define ICC_CTLR_EL1_SEIS_SHIFT		14
 #define ICC_CTLR_EL1_SEIS_MASK		(0x1 << ICC_CTLR_EL1_SEIS_SHIFT)
 #define ICC_CTLR_EL1_A3V_SHIFT		15
 #define ICC_CTLR_EL1_A3V_MASK		(0x1 << ICC_CTLR_EL1_A3V_SHIFT)
 #define ICC_PMR_EL1_SHIFT		0
 #define ICC_PMR_EL1_MASK		(0xff << ICC_PMR_EL1_SHIFT)
 #define ICC_BPR0_EL1_SHIFT		0
 #define ICC_BPR0_EL1_MASK		(0x7 << ICC_BPR0_EL1_SHIFT)
 #define ICC_BPR1_EL1_SHIFT		0
 #define ICC_BPR1_EL1_MASK		(0x7 << ICC_BPR1_EL1_SHIFT)
 #define ICC_IGRPEN0_EL1_SHIFT		0
 #define ICC_IGRPEN0_EL1_MASK		(1 << ICC_IGRPEN0_EL1_SHIFT)
 #define ICC_IGRPEN1_EL1_SHIFT		0
 #define ICC_IGRPEN1_EL1_MASK		(1 << ICC_IGRPEN1_EL1_SHIFT)
 #define ICC_SRE_EL1_DIB			(1U << 2)
 #define ICC_SRE_EL1_DFB			(1U << 1)
 #define ICC_SRE_EL1_SRE			(1U << 0)

 /*
  * Hypervisor interface registers (SRE only)
  */
 #define ICH_LR_VIRTUAL_ID_MASK		((1ULL << 32) - 1)

 #define ICH_LR_EOI			(1ULL << 41)
 #define ICH_LR_GROUP			(1ULL << 60)
 #define ICH_LR_HW			(1ULL << 61)
 #define ICH_LR_STATE			(3ULL << 62)
 #define ICH_LR_PENDING_BIT		(1ULL << 62)
 #define ICH_LR_ACTIVE_BIT		(1ULL << 63)
 #define ICH_LR_PHYS_ID_SHIFT		32
 #define ICH_LR_PHYS_ID_MASK		(0x3ffULL << ICH_LR_PHYS_ID_SHIFT)
 #define ICH_LR_PRIORITY_SHIFT		48

 /* These are for GICv2 emulation only */
 #define GICH_LR_VIRTUALID		(0x3ffUL << 0)
 #define GICH_LR_PHYSID_CPUID_SHIFT	(10)
 #define GICH_LR_PHYSID_CPUID		(7UL << GICH_LR_PHYSID_CPUID_SHIFT)

 #define ICH_MISR_EOI			(1 << 0)
 #define ICH_MISR_U			(1 << 1)

 #define ICH_HCR_EN			(1 << 0)
 #define ICH_HCR_UIE			(1 << 1)

 #define ICH_VMCR_ACK_CTL_SHIFT		2
 #define ICH_VMCR_ACK_CTL_MASK		(1 << ICH_VMCR_ACK_CTL_SHIFT)
 #define ICH_VMCR_FIQ_EN_SHIFT		3
 #define ICH_VMCR_FIQ_EN_MASK		(1 << ICH_VMCR_FIQ_EN_SHIFT)
 #define ICH_VMCR_CBPR_SHIFT		4
 #define ICH_VMCR_CBPR_MASK		(1 << ICH_VMCR_CBPR_SHIFT)
 #define ICH_VMCR_EOIM_SHIFT		9
 #define ICH_VMCR_EOIM_MASK		(1 << ICH_VMCR_EOIM_SHIFT)
 #define ICH_VMCR_BPR1_SHIFT		18
 #define ICH_VMCR_BPR1_MASK		(7 << ICH_VMCR_BPR1_SHIFT)
 #define ICH_VMCR_BPR0_SHIFT		21
 #define ICH_VMCR_BPR0_MASK		(7 << ICH_VMCR_BPR0_SHIFT)
 #define ICH_VMCR_PMR_SHIFT		24
 #define ICH_VMCR_PMR_MASK		(0xffUL << ICH_VMCR_PMR_SHIFT)
 #define ICH_VMCR_ENG0_SHIFT		0
 #define ICH_VMCR_ENG0_MASK		(1 << ICH_VMCR_ENG0_SHIFT)
 #define ICH_VMCR_ENG1_SHIFT		1
 #define ICH_VMCR_ENG1_MASK		(1 << ICH_VMCR_ENG1_SHIFT)

 #define ICH_VTR_PRI_BITS_SHIFT		29
 #define ICH_VTR_PRI_BITS_MASK		(7 << ICH_VTR_PRI_BITS_SHIFT)
 #define ICH_VTR_ID_BITS_SHIFT		23
 #define ICH_VTR_ID_BITS_MASK		(7 << ICH_VTR_ID_BITS_SHIFT)
 #define ICH_VTR_SEIS_SHIFT		22
 #define ICH_VTR_SEIS_MASK		(1 << ICH_VTR_SEIS_SHIFT)
 #define ICH_VTR_A3V_SHIFT		21
 #define ICH_VTR_A3V_MASK		(1 << ICH_VTR_A3V_SHIFT)

 #define ICC_IAR1_EL1_SPURIOUS		0x3ff

 #define ICC_SRE_EL2_SRE			(1 << 0)
 #define ICC_SRE_EL2_ENABLE		(1 << 3)

 #define ICC_SGI1R_TARGET_LIST_SHIFT	0
 #define ICC_SGI1R_TARGET_LIST_MASK	(0xffff << ICC_SGI1R_TARGET_LIST_SHIFT)
 #define ICC_SGI1R_AFFINITY_1_SHIFT	16
 #define ICC_SGI1R_AFFINITY_1_MASK	(0xff << ICC_SGI1R_AFFINITY_1_SHIFT)
 #define ICC_SGI1R_SGI_ID_SHIFT		24
 #define ICC_SGI1R_SGI_ID_MASK		(0xfULL << ICC_SGI1R_SGI_ID_SHIFT)
 #define ICC_SGI1R_AFFINITY_2_SHIFT	32
 #define ICC_SGI1R_AFFINITY_2_MASK	(0xffULL << ICC_SGI1R_AFFINITY_2_SHIFT)
 #define ICC_SGI1R_IRQ_ROUTING_MODE_BIT	40
 #define ICC_SGI1R_AFFINITY_3_SHIFT	48
 #define ICC_SGI1R_AFFINITY_3_MASK	(0xffULL << ICC_SGI1R_AFFINITY_3_SHIFT)

 #include <asm/arch_gicv3.h>

 #ifndef __ASSEMBLY__

 /*
  * We need a value to serve as a irq-type for LPIs. Choose one that will
  * hopefully pique the interest of the reviewer.
  */
 #define GIC_IRQ_TYPE_LPI		0xa110c8ed

 struct rdists {
 	struct {
 		void __iomem	*rd_base;
 		struct page	*pend_page;
 		phys_addr_t	phys_base;
 	} __percpu		*rdist;
 	struct page		*prop_page;
 	int			id_bits;
 	u64			flags;
 };

 struct irq_domain;
 struct fwnode_handle;
 int its_cpu_init(void);
 int its_init(struct fwnode_handle *handle, struct rdists *rdists,
 	     struct irq_domain *domain);

 static inline bool gic_enable_sre(void)
 {
 	u32 val;

 	val = gic_read_sre();
 	if (val & ICC_SRE_EL1_SRE)
 		return true;

 	val |= ICC_SRE_EL1_SRE;
 	gic_write_sre(val);
 	val = gic_read_sre();

 	return !!(val & ICC_SRE_EL1_SRE);
 }

 #endif

 #endif
	/*
	* Copyright (C) 2013, 2014 ARM Limited, All Rights Reserved.
	* Author: Marc Zyngier <marc.zyngier@arm.com>
	*
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 as
	* published by the Free Software Foundation.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	*/
	#ifndef __LINUX_IRQCHIP_ARM_GIC_V3_H
	#define __LINUX_IRQCHIP_ARM_GIC_V3_H

	/*
	* Distributor registers. We assume we're running non-secure, with ARE
	* being set. Secure-only and non-ARE registers are not described.
	*/
	#define GICD_CTLR 0x0000
	#define GICD_TYPER 0x0004
	#define GICD_IIDR 0x0008
	#define GICD_STATUSR 0x0010
	#define GICD_SETSPI_NSR 0x0040
	#define GICD_CLRSPI_NSR 0x0048
	#define GICD_SETSPI_SR 0x0050
	#define GICD_CLRSPI_SR 0x0058
	#define GICD_SEIR 0x0068
	#define GICD_IGROUPR 0x0080
	#define GICD_ISENABLER 0x0100
	#define GICD_ICENABLER 0x0180
	#define GICD_ISPENDR 0x0200
	#define GICD_ICPENDR 0x0280
	#define GICD_ISACTIVER 0x0300
	#define GICD_ICACTIVER 0x0380
	#define GICD_IPRIORITYR 0x0400
	#define GICD_ICFGR 0x0C00
	#define GICD_IGRPMODR 0x0D00
	#define GICD_NSACR 0x0E00
	#define GICD_IROUTER 0x6000
	#define GICD_IDREGS 0xFFD0
	#define GICD_PIDR2 0xFFE8

	/*
	* Those registers are actually from GICv2, but the spec demands that they
	* are implemented as RES0 if ARE is 1 (which we do in KVM's emulated GICv3).
	*/
	#define GICD_ITARGETSR 0x0800
	#define GICD_SGIR 0x0F00
	#define GICD_CPENDSGIR 0x0F10
	#define GICD_SPENDSGIR 0x0F20

	#define GICD_CTLR_RWP (1U << 31)
	#define GICD_CTLR_DS (1U << 6)
	#define GICD_CTLR_ARE_NS (1U << 4)
	#define GICD_CTLR_ENABLE_G1A (1U << 1)
	#define GICD_CTLR_ENABLE_G1 (1U << 0)

	/*
	* In systems with a single security state (what we emulate in KVM)
	* the meaning of the interrupt group enable bits is slightly different
	*/
	#define GICD_CTLR_ENABLE_SS_G1 (1U << 1)
	#define GICD_CTLR_ENABLE_SS_G0 (1U << 0)

	#define GICD_TYPER_LPIS (1U << 17)
	#define GICD_TYPER_MBIS (1U << 16)

	#define GICD_TYPER_ID_BITS(typer) ((((typer) >> 19) & 0x1f) + 1)
	#define GICD_TYPER_IRQS(typer) ((((typer) & 0x1f) + 1) * 32)

	#define GICD_IROUTER_SPI_MODE_ONE (0U << 31)
	#define GICD_IROUTER_SPI_MODE_ANY (1U << 31)

	#define GIC_PIDR2_ARCH_MASK 0xf0
	#define GIC_PIDR2_ARCH_GICv3 0x30
	#define GIC_PIDR2_ARCH_GICv4 0x40

	#define GIC_V3_DIST_SIZE 0x10000

	/*
	* Re-Distributor registers, offsets from RD_base
	*/
	#define GICR_CTLR GICD_CTLR
	#define GICR_IIDR 0x0004
	#define GICR_TYPER 0x0008
	#define GICR_STATUSR GICD_STATUSR
	#define GICR_WAKER 0x0014
	#define GICR_SETLPIR 0x0040
	#define GICR_CLRLPIR 0x0048
	#define GICR_SEIR GICD_SEIR
	#define GICR_PROPBASER 0x0070
	#define GICR_PENDBASER 0x0078
	#define GICR_INVLPIR 0x00A0
	#define GICR_INVALLR 0x00B0
	#define GICR_SYNCR 0x00C0
	#define GICR_MOVLPIR 0x0100
	#define GICR_MOVALLR 0x0110
	#define GICR_IDREGS GICD_IDREGS
	#define GICR_PIDR2 GICD_PIDR2

	#define GICR_CTLR_ENABLE_LPIS (1UL << 0)

	#define GICR_TYPER_CPU_NUMBER(r) (((r) >> 8) & 0xffff)

	#define GICR_WAKER_ProcessorSleep (1U << 1)
	#define GICR_WAKER_ChildrenAsleep (1U << 2)

	#define GIC_BASER_CACHE_nCnB 0ULL
	#define GIC_BASER_CACHE_SameAsInner 0ULL
	#define GIC_BASER_CACHE_nC 1ULL
	#define GIC_BASER_CACHE_RaWt 2ULL
	#define GIC_BASER_CACHE_RaWb 3ULL
	#define GIC_BASER_CACHE_WaWt 4ULL
	#define GIC_BASER_CACHE_WaWb 5ULL
	#define GIC_BASER_CACHE_RaWaWt 6ULL
	#define GIC_BASER_CACHE_RaWaWb 7ULL
	#define GIC_BASER_CACHE_MASK 7ULL
	#define GIC_BASER_NonShareable 0ULL
	#define GIC_BASER_InnerShareable 1ULL
	#define GIC_BASER_OuterShareable 2ULL
	#define GIC_BASER_SHAREABILITY_MASK 3ULL

	#define GIC_BASER_CACHEABILITY(reg, inner_outer, type) \
	(GIC_BASER_CACHE_##type << reg##_##inner_outer##_CACHEABILITY_SHIFT)

	#define GIC_BASER_SHAREABILITY(reg, type) \
	(GIC_BASER_##type << reg##_SHAREABILITY_SHIFT)

	/* encode a size field of width @w containing @n - 1 units */
	#define GIC_ENCODE_SZ(n, w) (((unsigned long)(n) - 1) & GENMASK_ULL(((w) - 1), 0))

	#define GICR_PROPBASER_SHAREABILITY_SHIFT (10)
	#define GICR_PROPBASER_INNER_CACHEABILITY_SHIFT (7)
	#define GICR_PROPBASER_OUTER_CACHEABILITY_SHIFT (56)
	#define GICR_PROPBASER_SHAREABILITY_MASK \
	GIC_BASER_SHAREABILITY(GICR_PROPBASER, SHAREABILITY_MASK)
	#define GICR_PROPBASER_INNER_CACHEABILITY_MASK \
	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, MASK)
	#define GICR_PROPBASER_OUTER_CACHEABILITY_MASK \
	GIC_BASER_CACHEABILITY(GICR_PROPBASER, OUTER, MASK)
	#define GICR_PROPBASER_CACHEABILITY_MASK GICR_PROPBASER_INNER_CACHEABILITY_MASK

	#define GICR_PROPBASER_InnerShareable \
	GIC_BASER_SHAREABILITY(GICR_PROPBASER, InnerShareable)

	#define GICR_PROPBASER_nCnB GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, nCnB)
	#define GICR_PROPBASER_nC GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, nC)
	#define GICR_PROPBASER_RaWt GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWt)
	#define GICR_PROPBASER_RaWb GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWt)
	#define GICR_PROPBASER_WaWt GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, WaWt)
	#define GICR_PROPBASER_WaWb GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, WaWb)
	#define GICR_PROPBASER_RaWaWt GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWaWt)
	#define GICR_PROPBASER_RaWaWb GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWaWb)

	#define GICR_PROPBASER_IDBITS_MASK (0x1f)
	#define GICR_PROPBASER_ADDRESS(x) ((x) & GENMASK_ULL(51, 12))
	#define GICR_PENDBASER_ADDRESS(x) ((x) & GENMASK_ULL(51, 16))

	#define GICR_PENDBASER_SHAREABILITY_SHIFT (10)
	#define GICR_PENDBASER_INNER_CACHEABILITY_SHIFT (7)
	#define GICR_PENDBASER_OUTER_CACHEABILITY_SHIFT (56)
	#define GICR_PENDBASER_SHAREABILITY_MASK \
	GIC_BASER_SHAREABILITY(GICR_PENDBASER, SHAREABILITY_MASK)
	#define GICR_PENDBASER_INNER_CACHEABILITY_MASK \
	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, MASK)
	#define GICR_PENDBASER_OUTER_CACHEABILITY_MASK \
	GIC_BASER_CACHEABILITY(GICR_PENDBASER, OUTER, MASK)
	#define GICR_PENDBASER_CACHEABILITY_MASK GICR_PENDBASER_INNER_CACHEABILITY_MASK

	#define GICR_PENDBASER_InnerShareable \
	GIC_BASER_SHAREABILITY(GICR_PENDBASER, InnerShareable)

	#define GICR_PENDBASER_nCnB GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, nCnB)
	#define GICR_PENDBASER_nC GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, nC)
	#define GICR_PENDBASER_RaWt GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWt)
	#define GICR_PENDBASER_RaWb GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWt)
	#define GICR_PENDBASER_WaWt GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, WaWt)
	#define GICR_PENDBASER_WaWb GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, WaWb)
	#define GICR_PENDBASER_RaWaWt GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWaWt)
	#define GICR_PENDBASER_RaWaWb GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWaWb)

	#define GICR_PENDBASER_PTZ BIT_ULL(62)

	/*
	* Re-Distributor registers, offsets from SGI_base
	*/
	#define GICR_IGROUPR0 GICD_IGROUPR
	#define GICR_ISENABLER0 GICD_ISENABLER
	#define GICR_ICENABLER0 GICD_ICENABLER
	#define GICR_ISPENDR0 GICD_ISPENDR
	#define GICR_ICPENDR0 GICD_ICPENDR
	#define GICR_ISACTIVER0 GICD_ISACTIVER
	#define GICR_ICACTIVER0 GICD_ICACTIVER
	#define GICR_IPRIORITYR0 GICD_IPRIORITYR
	#define GICR_ICFGR0 GICD_ICFGR
	#define GICR_IGRPMODR0 GICD_IGRPMODR
	#define GICR_NSACR GICD_NSACR

	#define GICR_TYPER_PLPIS (1U << 0)
	#define GICR_TYPER_VLPIS (1U << 1)
	#define GICR_TYPER_LAST (1U << 4)

	#define GIC_V3_REDIST_SIZE 0x20000

	#define LPI_PROP_GROUP1 (1 << 1)
	#define LPI_PROP_ENABLED (1 << 0)

	/*
	* ITS registers, offsets from ITS_base
	*/
	#define GITS_CTLR 0x0000
	#define GITS_IIDR 0x0004
	#define GITS_TYPER 0x0008
	#define GITS_CBASER 0x0080
	#define GITS_CWRITER 0x0088
	#define GITS_CREADR 0x0090
	#define GITS_BASER 0x0100
	#define GITS_IDREGS_BASE 0xffd0
	#define GITS_PIDR0 0xffe0
	#define GITS_PIDR1 0xffe4
	#define GITS_PIDR2 GICR_PIDR2
	#define GITS_PIDR4 0xffd0
	#define GITS_CIDR0 0xfff0
	#define GITS_CIDR1 0xfff4
	#define GITS_CIDR2 0xfff8
	#define GITS_CIDR3 0xfffc

	#define GITS_TRANSLATER 0x10040

	#define GITS_CTLR_ENABLE (1U << 0)
	#define GITS_CTLR_QUIESCENT (1U << 31)

	#define GITS_TYPER_PLPIS (1UL << 0)
	#define GITS_TYPER_ITT_ENTRY_SIZE_SHIFT 4
	#define GITS_TYPER_IDBITS_SHIFT 8
	#define GITS_TYPER_DEVBITS_SHIFT 13
	#define GITS_TYPER_DEVBITS(r) ((((r) >> GITS_TYPER_DEVBITS_SHIFT) & 0x1f) + 1)
	#define GITS_TYPER_PTA (1UL << 19)
	#define GITS_TYPER_HWCOLLCNT_SHIFT 24

	#define GITS_IIDR_REV_SHIFT 12
	#define GITS_IIDR_REV_MASK (0xf << GITS_IIDR_REV_SHIFT)
	#define GITS_IIDR_REV(r) (((r) >> GITS_IIDR_REV_SHIFT) & 0xf)
	#define GITS_IIDR_PRODUCTID_SHIFT 24

	#define GITS_CBASER_VALID (1ULL << 63)
	#define GITS_CBASER_SHAREABILITY_SHIFT (10)
	#define GITS_CBASER_INNER_CACHEABILITY_SHIFT (59)
	#define GITS_CBASER_OUTER_CACHEABILITY_SHIFT (53)
	#define GITS_CBASER_SHAREABILITY_MASK \
	GIC_BASER_SHAREABILITY(GITS_CBASER, SHAREABILITY_MASK)
	#define GITS_CBASER_INNER_CACHEABILITY_MASK \
	GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, MASK)
	#define GITS_CBASER_OUTER_CACHEABILITY_MASK \
	GIC_BASER_CACHEABILITY(GITS_CBASER, OUTER, MASK)
	#define GITS_CBASER_CACHEABILITY_MASK GITS_CBASER_INNER_CACHEABILITY_MASK

	#define GITS_CBASER_InnerShareable \
	GIC_BASER_SHAREABILITY(GITS_CBASER, InnerShareable)

	#define GITS_CBASER_nCnB GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, nCnB)
	#define GITS_CBASER_nC GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, nC)
	#define GITS_CBASER_RaWt GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWt)
	#define GITS_CBASER_RaWb GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWt)
	#define GITS_CBASER_WaWt GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, WaWt)
	#define GITS_CBASER_WaWb GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, WaWb)
	#define GITS_CBASER_RaWaWt GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWaWt)
	#define GITS_CBASER_RaWaWb GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWaWb)

	#define GITS_BASER_NR_REGS 8

	#define GITS_BASER_VALID (1ULL << 63)
	#define GITS_BASER_INDIRECT (1ULL << 62)

	#define GITS_BASER_INNER_CACHEABILITY_SHIFT (59)
	#define GITS_BASER_OUTER_CACHEABILITY_SHIFT (53)
	#define GITS_BASER_INNER_CACHEABILITY_MASK \
	GIC_BASER_CACHEABILITY(GITS_BASER, INNER, MASK)
	#define GITS_BASER_CACHEABILITY_MASK GITS_BASER_INNER_CACHEABILITY_MASK
	#define GITS_BASER_OUTER_CACHEABILITY_MASK \
	GIC_BASER_CACHEABILITY(GITS_BASER, OUTER, MASK)
	#define GITS_BASER_SHAREABILITY_MASK \
	GIC_BASER_SHAREABILITY(GITS_BASER, SHAREABILITY_MASK)

	#define GITS_BASER_nCnB GIC_BASER_CACHEABILITY(GITS_BASER, INNER, nCnB)
	#define GITS_BASER_nC GIC_BASER_CACHEABILITY(GITS_BASER, INNER, nC)
	#define GITS_BASER_RaWt GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWt)
	#define GITS_BASER_RaWb GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWt)
	#define GITS_BASER_WaWt GIC_BASER_CACHEABILITY(GITS_BASER, INNER, WaWt)
	#define GITS_BASER_WaWb GIC_BASER_CACHEABILITY(GITS_BASER, INNER, WaWb)
	#define GITS_BASER_RaWaWt GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWaWt)
	#define GITS_BASER_RaWaWb GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWaWb)

	#define GITS_BASER_TYPE_SHIFT (56)
	#define GITS_BASER_TYPE(r) (((r) >> GITS_BASER_TYPE_SHIFT) & 7)
	#define GITS_BASER_ENTRY_SIZE_SHIFT (48)
	#define GITS_BASER_ENTRY_SIZE(r) ((((r) >> GITS_BASER_ENTRY_SIZE_SHIFT) & 0x1f) + 1)
	#define GITS_BASER_ENTRY_SIZE_MASK GENMASK_ULL(52, 48)
	#define GITS_BASER_SHAREABILITY_SHIFT (10)
	#define GITS_BASER_InnerShareable \
	GIC_BASER_SHAREABILITY(GITS_BASER, InnerShareable)
	#define GITS_BASER_PAGE_SIZE_SHIFT (8)
	#define GITS_BASER_PAGE_SIZE_4K (0ULL << GITS_BASER_PAGE_SIZE_SHIFT)
	#define GITS_BASER_PAGE_SIZE_16K (1ULL << GITS_BASER_PAGE_SIZE_SHIFT)
	#define GITS_BASER_PAGE_SIZE_64K (2ULL << GITS_BASER_PAGE_SIZE_SHIFT)
	#define GITS_BASER_PAGE_SIZE_MASK (3ULL << GITS_BASER_PAGE_SIZE_SHIFT)
	#define GITS_BASER_PAGES_MAX 256
	#define GITS_BASER_PAGES_SHIFT (0)
	#define GITS_BASER_NR_PAGES(r) (((r) & 0xff) + 1)

	#define GITS_BASER_TYPE_NONE 0
	#define GITS_BASER_TYPE_DEVICE 1
	#define GITS_BASER_TYPE_VCPU 2
	#define GITS_BASER_TYPE_RESERVED3 3
	#define GITS_BASER_TYPE_COLLECTION 4
	#define GITS_BASER_TYPE_RESERVED5 5
	#define GITS_BASER_TYPE_RESERVED6 6
	#define GITS_BASER_TYPE_RESERVED7 7

	#define GITS_LVL1_ENTRY_SIZE (8UL)

	/*
	* ITS commands
	*/
	#define GITS_CMD_MAPD 0x08
	#define GITS_CMD_MAPC 0x09
	#define GITS_CMD_MAPTI 0x0a
	#define GITS_CMD_MAPI 0x0b
	#define GITS_CMD_MOVI 0x01
	#define GITS_CMD_DISCARD 0x0f
	#define GITS_CMD_INV 0x0c
	#define GITS_CMD_MOVALL 0x0e
	#define GITS_CMD_INVALL 0x0d
	#define GITS_CMD_INT 0x03
	#define GITS_CMD_CLEAR 0x04
	#define GITS_CMD_SYNC 0x05

	/*
	* ITS error numbers
	*/
	#define E_ITS_MOVI_UNMAPPED_INTERRUPT 0x010107
	#define E_ITS_MOVI_UNMAPPED_COLLECTION 0x010109
	#define E_ITS_INT_UNMAPPED_INTERRUPT 0x010307
	#define E_ITS_CLEAR_UNMAPPED_INTERRUPT 0x010507
	#define E_ITS_MAPD_DEVICE_OOR 0x010801
	#define E_ITS_MAPD_ITTSIZE_OOR 0x010802
	#define E_ITS_MAPC_PROCNUM_OOR 0x010902
	#define E_ITS_MAPC_COLLECTION_OOR 0x010903
	#define E_ITS_MAPTI_UNMAPPED_DEVICE 0x010a04
	#define E_ITS_MAPTI_ID_OOR 0x010a05
	#define E_ITS_MAPTI_PHYSICALID_OOR 0x010a06
	#define E_ITS_INV_UNMAPPED_INTERRUPT 0x010c07
	#define E_ITS_INVALL_UNMAPPED_COLLECTION 0x010d09
	#define E_ITS_MOVALL_PROCNUM_OOR 0x010e01
	#define E_ITS_DISCARD_UNMAPPED_INTERRUPT 0x010f07

	/*
	* CPU interface registers
	*/
	#define ICC_CTLR_EL1_EOImode_SHIFT (1)
	#define ICC_CTLR_EL1_EOImode_drop_dir (0U << ICC_CTLR_EL1_EOImode_SHIFT)
	#define ICC_CTLR_EL1_EOImode_drop (1U << ICC_CTLR_EL1_EOImode_SHIFT)
	#define ICC_CTLR_EL1_EOImode_MASK (1 << ICC_CTLR_EL1_EOImode_SHIFT)
	#define ICC_CTLR_EL1_CBPR_SHIFT 0
	#define ICC_CTLR_EL1_CBPR_MASK (1 << ICC_CTLR_EL1_CBPR_SHIFT)
	#define ICC_CTLR_EL1_PRI_BITS_SHIFT 8
	#define ICC_CTLR_EL1_PRI_BITS_MASK (0x7 << ICC_CTLR_EL1_PRI_BITS_SHIFT)
	#define ICC_CTLR_EL1_ID_BITS_SHIFT 11
	#define ICC_CTLR_EL1_ID_BITS_MASK (0x7 << ICC_CTLR_EL1_ID_BITS_SHIFT)
	#define ICC_CTLR_EL1_SEIS_SHIFT 14
	#define ICC_CTLR_EL1_SEIS_MASK (0x1 << ICC_CTLR_EL1_SEIS_SHIFT)
	#define ICC_CTLR_EL1_A3V_SHIFT 15
	#define ICC_CTLR_EL1_A3V_MASK (0x1 << ICC_CTLR_EL1_A3V_SHIFT)
	#define ICC_PMR_EL1_SHIFT 0
	#define ICC_PMR_EL1_MASK (0xff << ICC_PMR_EL1_SHIFT)
	#define ICC_BPR0_EL1_SHIFT 0
	#define ICC_BPR0_EL1_MASK (0x7 << ICC_BPR0_EL1_SHIFT)
	#define ICC_BPR1_EL1_SHIFT 0
	#define ICC_BPR1_EL1_MASK (0x7 << ICC_BPR1_EL1_SHIFT)
	#define ICC_IGRPEN0_EL1_SHIFT 0
	#define ICC_IGRPEN0_EL1_MASK (1 << ICC_IGRPEN0_EL1_SHIFT)
	#define ICC_IGRPEN1_EL1_SHIFT 0
	#define ICC_IGRPEN1_EL1_MASK (1 << ICC_IGRPEN1_EL1_SHIFT)
	#define ICC_SRE_EL1_DIB (1U << 2)
	#define ICC_SRE_EL1_DFB (1U << 1)
	#define ICC_SRE_EL1_SRE (1U << 0)

	/*
	* Hypervisor interface registers (SRE only)
	*/
	#define ICH_LR_VIRTUAL_ID_MASK ((1ULL << 32) - 1)

	#define ICH_LR_EOI (1ULL << 41)
	#define ICH_LR_GROUP (1ULL << 60)
	#define ICH_LR_HW (1ULL << 61)
	#define ICH_LR_STATE (3ULL << 62)
	#define ICH_LR_PENDING_BIT (1ULL << 62)
	#define ICH_LR_ACTIVE_BIT (1ULL << 63)
	#define ICH_LR_PHYS_ID_SHIFT 32
	#define ICH_LR_PHYS_ID_MASK (0x3ffULL << ICH_LR_PHYS_ID_SHIFT)
	#define ICH_LR_PRIORITY_SHIFT 48

	/* These are for GICv2 emulation only */
	#define GICH_LR_VIRTUALID (0x3ffUL << 0)
	#define GICH_LR_PHYSID_CPUID_SHIFT (10)
	#define GICH_LR_PHYSID_CPUID (7UL << GICH_LR_PHYSID_CPUID_SHIFT)

	#define ICH_MISR_EOI (1 << 0)
	#define ICH_MISR_U (1 << 1)

	#define ICH_HCR_EN (1 << 0)
	#define ICH_HCR_UIE (1 << 1)

	#define ICH_VMCR_ACK_CTL_SHIFT 2
	#define ICH_VMCR_ACK_CTL_MASK (1 << ICH_VMCR_ACK_CTL_SHIFT)
	#define ICH_VMCR_FIQ_EN_SHIFT 3
	#define ICH_VMCR_FIQ_EN_MASK (1 << ICH_VMCR_FIQ_EN_SHIFT)
	#define ICH_VMCR_CBPR_SHIFT 4
	#define ICH_VMCR_CBPR_MASK (1 << ICH_VMCR_CBPR_SHIFT)
	#define ICH_VMCR_EOIM_SHIFT 9
	#define ICH_VMCR_EOIM_MASK (1 << ICH_VMCR_EOIM_SHIFT)
	#define ICH_VMCR_BPR1_SHIFT 18
	#define ICH_VMCR_BPR1_MASK (7 << ICH_VMCR_BPR1_SHIFT)
	#define ICH_VMCR_BPR0_SHIFT 21
	#define ICH_VMCR_BPR0_MASK (7 << ICH_VMCR_BPR0_SHIFT)
	#define ICH_VMCR_PMR_SHIFT 24
	#define ICH_VMCR_PMR_MASK (0xffUL << ICH_VMCR_PMR_SHIFT)
	#define ICH_VMCR_ENG0_SHIFT 0
	#define ICH_VMCR_ENG0_MASK (1 << ICH_VMCR_ENG0_SHIFT)
	#define ICH_VMCR_ENG1_SHIFT 1
	#define ICH_VMCR_ENG1_MASK (1 << ICH_VMCR_ENG1_SHIFT)

	#define ICH_VTR_PRI_BITS_SHIFT 29
	#define ICH_VTR_PRI_BITS_MASK (7 << ICH_VTR_PRI_BITS_SHIFT)
	#define ICH_VTR_ID_BITS_SHIFT 23
	#define ICH_VTR_ID_BITS_MASK (7 << ICH_VTR_ID_BITS_SHIFT)
	#define ICH_VTR_SEIS_SHIFT 22
	#define ICH_VTR_SEIS_MASK (1 << ICH_VTR_SEIS_SHIFT)
	#define ICH_VTR_A3V_SHIFT 21
	#define ICH_VTR_A3V_MASK (1 << ICH_VTR_A3V_SHIFT)

	#define ICC_IAR1_EL1_SPURIOUS 0x3ff

	#define ICC_SRE_EL2_SRE (1 << 0)
	#define ICC_SRE_EL2_ENABLE (1 << 3)

	#define ICC_SGI1R_TARGET_LIST_SHIFT 0
	#define ICC_SGI1R_TARGET_LIST_MASK (0xffff << ICC_SGI1R_TARGET_LIST_SHIFT)
	#define ICC_SGI1R_AFFINITY_1_SHIFT 16
	#define ICC_SGI1R_AFFINITY_1_MASK (0xff << ICC_SGI1R_AFFINITY_1_SHIFT)
	#define ICC_SGI1R_SGI_ID_SHIFT 24
	#define ICC_SGI1R_SGI_ID_MASK (0xfULL << ICC_SGI1R_SGI_ID_SHIFT)
	#define ICC_SGI1R_AFFINITY_2_SHIFT 32
	#define ICC_SGI1R_AFFINITY_2_MASK (0xffULL << ICC_SGI1R_AFFINITY_2_SHIFT)
	#define ICC_SGI1R_IRQ_ROUTING_MODE_BIT 40
	#define ICC_SGI1R_AFFINITY_3_SHIFT 48
	#define ICC_SGI1R_AFFINITY_3_MASK (0xffULL << ICC_SGI1R_AFFINITY_3_SHIFT)

	#include <asm/arch_gicv3.h>

	#ifndef __ASSEMBLY__

	/*
	* We need a value to serve as a irq-type for LPIs. Choose one that will
	* hopefully pique the interest of the reviewer.
	*/
	#define GIC_IRQ_TYPE_LPI 0xa110c8ed

	struct rdists {
	struct {
	void __iomem *rd_base;
	struct page *pend_page;
	phys_addr_t phys_base;
	} __percpu *rdist;
	struct page *prop_page;
	int id_bits;
	u64 flags;
	};

	struct irq_domain;
	struct fwnode_handle;
	int its_cpu_init(void);
	int its_init(struct fwnode_handle handle, struct rdists rdists,
	struct irq_domain *domain);

	static inline bool gic_enable_sre(void)
	{
	u32 val;

	val = gic_read_sre();
	if (val & ICC_SRE_EL1_SRE)
	return true;

	val \|= ICC_SRE_EL1_SRE;
	gic_write_sre(val);
	val = gic_read_sre();

	return !!(val & ICC_SRE_EL1_SRE);
	}

	#endif

	#endif