/*
 * ARM Generic Interrupt Controller v3 definitions
 *
 * Vijaya Kumar K <vijaya.kumar@caviumnetworks.com>
 * Copyright (c) 2014 Cavium Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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.
 */

#ifndef __ASM_ARM_GIC_V3_DEFS_H__
#define __ASM_ARM_GIC_V3_DEFS_H__

#include <xen/sizes.h>

/*
 * Additional registers defined in GIC v3.
 * Common GICD registers are defined in gic.h
 */

#define GICD_STATUSR                 (0x010)
#define GICD_SETSPI_NSR              (0x040)
#define GICD_CLRSPI_NSR              (0x048)
#define GICD_SETSPI_SR               (0x050)
#define GICD_CLRSPI_SR               (0x058)
#define GICD_IROUTER                 (0x6000)
#define GICD_IROUTER32               (0x6100)
#define GICD_IROUTER1019             (0x7FD8)
#define GICD_PIDR2                   (0xFFE8)

/* Common between GICD_PIDR2 and GICR_PIDR2 */
#define GIC_PIDR2_ARCH_MASK         (0xf0)
#define GIC_PIDR2_ARCH_GICv3        (0x30)
#define GIC_PIDR2_ARCH_GICv4        (0x40)

#define GICC_SRE_EL2_SRE             (1UL << 0)
#define GICC_SRE_EL2_DFB             (1UL << 1)
#define GICC_SRE_EL2_DIB             (1UL << 2)
#define GICC_SRE_EL2_ENEL1           (1UL << 3)

/* Additional bits in GICD_TYPER defined by GICv3 */
#define GICD_TYPE_ID_BITS_SHIFT 19
#define GICD_TYPE_ID_BITS(r)    ((((r) >> GICD_TYPE_ID_BITS_SHIFT) & 0x1f) + 1)

#define GICD_TYPE_LPIS               (1U << 17)

#define GICD_CTLR_RWP                (1UL << 31)
#define GICD_CTLR_ARE_NS             (1U << 4)
#define GICD_CTLR_ENABLE_G1A         (1U << 1)
#define GICD_CTLR_ENABLE_G1          (1U << 0)
#define GICD_IROUTER_SPI_MODE_ANY    (1UL << 31)

#define GICC_CTLR_EL1_EOImode_drop   (1U << 1)

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

#define GICR_SYNCR_NOT_BUSY          1
/*
 * Implementation defined value JEP106?
 * use physical hw value for now
 */
#define GICV3_GICD_IIDR_VAL          0x34c
#define GICV3_GICR_IIDR_VAL          GICV3_GICD_IIDR_VAL

/* Two pages for the RD_base and SGI_base register frame. */
#define GICV3_GICR_SIZE              (2 * SZ_64K)

#define GICR_CTLR                    (0x0000)
#define GICR_IIDR                    (0x0004)
#define GICR_TYPER                   (0x0008)
#define GICR_STATUSR                 (0x0010)
#define GICR_WAKER                   (0x0014)
#define GICR_SETLPIR                 (0x0040)
#define GICR_CLRLPIR                 (0x0048)
#define GICR_PROPBASER               (0x0070)
#define GICR_PENDBASER               (0x0078)
#define GICR_INVLPIR                 (0x00A0)
#define GICR_INVALLR                 (0x00B0)
#define GICR_SYNCR                   (0x00C0)
#define GICR_PIDR2                   GICD_PIDR2

/* GICR for SGI's & PPI's */

#define GICR_IGROUPR0                (0x0080)
#define GICR_ISENABLER0              (0x0100)
#define GICR_ICENABLER0              (0x0180)
#define GICR_ISPENDR0                (0x0200)
#define GICR_ICPENDR0                (0x0280)
#define GICR_ISACTIVER0              (0x0300)
#define GICR_ICACTIVER0              (0x0380)
#define GICR_IPRIORITYR0             (0x0400)
#define GICR_IPRIORITYR7             (0x041C)
#define GICR_ICFGR0                  (0x0C00)
#define GICR_ICFGR1                  (0x0C04)
#define GICR_IGRPMODR0               (0x0D00)
#define GICR_NSACR                   (0x0E00)

#define GICR_CTLR_ENABLE_LPIS        (1U << 0)

#define GICR_TYPER_PLPIS             (1U << 0)
#define GICR_TYPER_VLPIS             (1U << 1)
#define GICR_TYPER_LAST              (1U << 4)
#define GICR_TYPER_PROC_NUM_SHIFT    8
#define GICR_TYPER_PROC_NUM_MASK     (0xffff << GICR_TYPER_PROC_NUM_SHIFT)

/* For specifying the inner cacheability type only */
#define GIC_BASER_CACHE_nCnB         0ULL
/* For specifying the outer cacheability type only */
#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 GICR_PROPBASER_OUTER_CACHEABILITY_SHIFT         56
#define GICR_PROPBASER_OUTER_CACHEABILITY_MASK               \
        (7UL << GICR_PROPBASER_OUTER_CACHEABILITY_SHIFT)
#define GICR_PROPBASER_SHAREABILITY_SHIFT               10
#define GICR_PROPBASER_SHAREABILITY_MASK                     \
        (3UL << GICR_PROPBASER_SHAREABILITY_SHIFT)
#define GICR_PROPBASER_INNER_CACHEABILITY_SHIFT         7
#define GICR_PROPBASER_INNER_CACHEABILITY_MASK               \
        (7UL << GICR_PROPBASER_INNER_CACHEABILITY_SHIFT)
#define GICR_PROPBASER_RES0_MASK                             \
        (GENMASK(63, 59) | GENMASK(55, 52) | GENMASK(6, 5))

#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                     \
	(3UL << GICR_PENDBASER_SHAREABILITY_SHIFT)
#define GICR_PENDBASER_INNER_CACHEABILITY_MASK               \
	(7UL << GICR_PENDBASER_INNER_CACHEABILITY_SHIFT)
#define GICR_PENDBASER_OUTER_CACHEABILITY_MASK               \
        (7UL << GICR_PENDBASER_OUTER_CACHEABILITY_SHIFT)
#define GICR_PENDBASER_PTZ                              BIT(62, UL)
#define GICR_PENDBASER_RES0_MASK                             \
        (BIT(63, UL) | GENMASK(61, 59) | GENMASK(55, 52) |  \
         GENMASK(15, 12) | GENMASK(6, 0))

#define DEFAULT_PMR_VALUE            0xff

#define LPI_PROP_PRIO_MASK           0xfc
#define LPI_PROP_RES1                (1 << 1)
#define LPI_PROP_ENABLED             (1 << 0)

#define ICH_VMCR_EOI                 (1 << 9)
#define ICH_VMCR_VENG1               (1 << 1)
#define ICH_VMCR_PRIORITY_MASK       0xff
#define ICH_VMCR_PRIORITY_SHIFT      24

#define ICH_LR_VIRTUAL_MASK          0xffff
#define ICH_LR_VIRTUAL_SHIFT         0
#define ICH_LR_CPUID_MASK            0x7
#define ICH_LR_CPUID_SHIFT           10
#define ICH_LR_PHYSICAL_MASK         0x3ff
#define ICH_LR_PHYSICAL_SHIFT        32
#define ICH_LR_STATE_MASK            0x3
#define ICH_LR_STATE_SHIFT           62
#define ICH_LR_STATE_PENDING         (1ULL << 62)
#define ICH_LR_STATE_ACTIVE          (1ULL << 63)
#define ICH_LR_PRIORITY_MASK         0xff
#define ICH_LR_PRIORITY_SHIFT        48
#define ICH_LR_HW_MASK               0x1
#define ICH_LR_HW_SHIFT              61
#define ICH_LR_GRP_MASK              0x1
#define ICH_LR_GRP_SHIFT             60
#define ICH_LR_MAINTENANCE_IRQ       (1UL<<41)
#define ICH_LR_GRP1                  (1UL<<60)
#define ICH_LR_HW                    (1UL<<61)

#define ICH_VTR_NRLRGS               0x3f
#define ICH_VTR_PRIBITS_MASK         0x7
#define ICH_VTR_PRIBITS_SHIFT        29

#define ICH_SGI_IRQMODE_SHIFT        40
#define ICH_SGI_IRQMODE_MASK         0x1
#define ICH_SGI_TARGET_OTHERS        1UL
#define ICH_SGI_TARGET_LIST          0
#define ICH_SGI_IRQ_SHIFT            24
#define ICH_SGI_IRQ_MASK             0xf
#define ICH_SGI_TARGETLIST_MASK      0xffff
#define ICH_SGI_AFFx_MASK            0xff
#define ICH_SGI_AFFINITY_LEVEL(x)    (16 * (x))

struct rdist_region {
    paddr_t base;
    paddr_t size;
    void __iomem *map_base;
    bool single_rdist;
};

#endif /* __ASM_ARM_GIC_V3_DEFS_H__ */

/*
 * Local variables:
 * mode: C
 * c-file-style: "BSD"
 * c-basic-offset: 4
 * indent-tabs-mode: nil
 * End:
 */
