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Diffstat (limited to 'include/drivers/arm/gicv3.h')
| -rw-r--r-- | include/drivers/arm/gicv3.h | 605 |
1 files changed, 605 insertions, 0 deletions
diff --git a/include/drivers/arm/gicv3.h b/include/drivers/arm/gicv3.h new file mode 100644 index 0000000..cf6a746 --- /dev/null +++ b/include/drivers/arm/gicv3.h @@ -0,0 +1,605 @@ +/* + * Copyright (c) 2015-2023, Arm Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef GICV3_H +#define GICV3_H + +/******************************************************************************* + * GICv3 and 3.1 miscellaneous definitions + ******************************************************************************/ +/* Interrupt group definitions */ +#define INTR_GROUP1S U(0) +#define INTR_GROUP0 U(1) +#define INTR_GROUP1NS U(2) + +/* Interrupt IDs reported by the HPPIR and IAR registers */ +#define PENDING_G1S_INTID U(1020) +#define PENDING_G1NS_INTID U(1021) + +/* Constant to categorize LPI interrupt */ +#define MIN_LPI_ID U(8192) + +/* GICv3 can only target up to 16 PEs with SGI */ +#define GICV3_MAX_SGI_TARGETS U(16) + +/* PPIs INTIDs 16-31 */ +#define MAX_PPI_ID U(31) + +#if GIC_EXT_INTID + +/* GICv3.1 extended PPIs INTIDs 1056-1119 */ +#define MIN_EPPI_ID U(1056) +#define MAX_EPPI_ID U(1119) + +/* Total number of GICv3.1 EPPIs */ +#define TOTAL_EPPI_INTR_NUM (MAX_EPPI_ID - MIN_EPPI_ID + U(1)) + +/* Total number of GICv3.1 PPIs and EPPIs */ +#define TOTAL_PRIVATE_INTR_NUM (TOTAL_PCPU_INTR_NUM + TOTAL_EPPI_INTR_NUM) + +/* GICv3.1 extended SPIs INTIDs 4096 - 5119 */ +#define MIN_ESPI_ID U(4096) +#define MAX_ESPI_ID U(5119) + +/* Total number of GICv3.1 ESPIs */ +#define TOTAL_ESPI_INTR_NUM (MAX_ESPI_ID - MIN_ESPI_ID + U(1)) + +/* Total number of GICv3.1 SPIs and ESPIs */ +#define TOTAL_SHARED_INTR_NUM (TOTAL_SPI_INTR_NUM + TOTAL_ESPI_INTR_NUM) + +/* SGIs: 0-15, PPIs: 16-31, EPPIs: 1056-1119 */ +#define IS_SGI_PPI(id) (((id) <= MAX_PPI_ID) || \ + (((id) >= MIN_EPPI_ID) && \ + ((id) <= MAX_EPPI_ID))) + +/* SPIs: 32-1019, ESPIs: 4096-5119 */ +#define IS_SPI(id) ((((id) >= MIN_SPI_ID) && \ + ((id) <= MAX_SPI_ID)) || \ + (((id) >= MIN_ESPI_ID) && \ + ((id) <= MAX_ESPI_ID))) +#else /* GICv3 */ + +/* Total number of GICv3 PPIs */ +#define TOTAL_PRIVATE_INTR_NUM TOTAL_PCPU_INTR_NUM + +/* Total number of GICv3 SPIs */ +#define TOTAL_SHARED_INTR_NUM TOTAL_SPI_INTR_NUM + +/* SGIs: 0-15, PPIs: 16-31 */ +#define IS_SGI_PPI(id) ((id) <= MAX_PPI_ID) + +/* SPIs: 32-1019 */ +#define IS_SPI(id) (((id) >= MIN_SPI_ID) && ((id) <= MAX_SPI_ID)) + +#endif /* GIC_EXT_INTID */ + +#define GIC_REV(r, p) ((r << 4) | p) + +/******************************************************************************* + * GICv3 and 3.1 specific Distributor interface register offsets and constants + ******************************************************************************/ +#define GICD_TYPER2 U(0x0c) +#define GICD_STATUSR U(0x10) +#define GICD_SETSPI_NSR U(0x40) +#define GICD_CLRSPI_NSR U(0x48) +#define GICD_SETSPI_SR U(0x50) +#define GICD_CLRSPI_SR U(0x58) +#define GICD_IGRPMODR U(0xd00) +#define GICD_IGROUPRE U(0x1000) +#define GICD_ISENABLERE U(0x1200) +#define GICD_ICENABLERE U(0x1400) +#define GICD_ISPENDRE U(0x1600) +#define GICD_ICPENDRE U(0x1800) +#define GICD_ISACTIVERE U(0x1a00) +#define GICD_ICACTIVERE U(0x1c00) +#define GICD_IPRIORITYRE U(0x2000) +#define GICD_ICFGRE U(0x3000) +#define GICD_IGRPMODRE U(0x3400) +#define GICD_NSACRE U(0x3600) +/* + * GICD_IROUTER<n> register is at 0x6000 + 8n, where n is the interrupt ID + * and n >= 32, making the effective offset as 0x6100 + */ +#define GICD_IROUTER U(0x6000) +#define GICD_IROUTERE U(0x8000) + +#define GICD_PIDR0_GICV3 U(0xffe0) +#define GICD_PIDR1_GICV3 U(0xffe4) +#define GICD_PIDR2_GICV3 U(0xffe8) + +#define IGRPMODR_SHIFT 5 + +/* GICD_CTLR bit definitions */ +#define CTLR_ENABLE_G1NS_SHIFT 1 +#define CTLR_ENABLE_G1S_SHIFT 2 +#define CTLR_ARE_S_SHIFT 4 +#define CTLR_ARE_NS_SHIFT 5 +#define CTLR_DS_SHIFT 6 +#define CTLR_E1NWF_SHIFT 7 +#define GICD_CTLR_RWP_SHIFT 31 + +#define CTLR_ENABLE_G1NS_MASK U(0x1) +#define CTLR_ENABLE_G1S_MASK U(0x1) +#define CTLR_ARE_S_MASK U(0x1) +#define CTLR_ARE_NS_MASK U(0x1) +#define CTLR_DS_MASK U(0x1) +#define CTLR_E1NWF_MASK U(0x1) +#define GICD_CTLR_RWP_MASK U(0x1) + +#define CTLR_ENABLE_G1NS_BIT BIT_32(CTLR_ENABLE_G1NS_SHIFT) +#define CTLR_ENABLE_G1S_BIT BIT_32(CTLR_ENABLE_G1S_SHIFT) +#define CTLR_ARE_S_BIT BIT_32(CTLR_ARE_S_SHIFT) +#define CTLR_ARE_NS_BIT BIT_32(CTLR_ARE_NS_SHIFT) +#define CTLR_DS_BIT BIT_32(CTLR_DS_SHIFT) +#define CTLR_E1NWF_BIT BIT_32(CTLR_E1NWF_SHIFT) +#define GICD_CTLR_RWP_BIT BIT_32(GICD_CTLR_RWP_SHIFT) + +/* GICD_IROUTER shifts and masks */ +#define IROUTER_SHIFT 0 +#define IROUTER_IRM_SHIFT 31 +#define IROUTER_IRM_MASK U(0x1) + +#define GICV3_IRM_PE U(0) +#define GICV3_IRM_ANY U(1) + +#define NUM_OF_DIST_REGS 30 + +/* GICD_TYPER shifts and masks */ +#define TYPER_ESPI U(1 << 8) +#define TYPER_DVIS U(1 << 18) +#define TYPER_ESPI_RANGE_MASK U(0x1f) +#define TYPER_ESPI_RANGE_SHIFT U(27) +#define TYPER_ESPI_RANGE U(TYPER_ESPI_MASK << TYPER_ESPI_SHIFT) + +/******************************************************************************* + * Common GIC Redistributor interface registers & constants + ******************************************************************************/ +#define GICR_V4_PCPUBASE_SHIFT 0x12 +#define GICR_V3_PCPUBASE_SHIFT 0x11 +#define GICR_SGIBASE_OFFSET U(65536) /* 64 KB */ +#define GICR_CTLR U(0x0) +#define GICR_IIDR U(0x04) +#define GICR_TYPER U(0x08) +#define GICR_STATUSR U(0x10) +#define GICR_WAKER U(0x14) +#define GICR_PROPBASER U(0x70) +#define GICR_PENDBASER U(0x78) +#define GICR_IGROUPR0 (GICR_SGIBASE_OFFSET + U(0x80)) +#define GICR_ISENABLER0 (GICR_SGIBASE_OFFSET + U(0x100)) +#define GICR_ICENABLER0 (GICR_SGIBASE_OFFSET + U(0x180)) +#define GICR_ISPENDR0 (GICR_SGIBASE_OFFSET + U(0x200)) +#define GICR_ICPENDR0 (GICR_SGIBASE_OFFSET + U(0x280)) +#define GICR_ISACTIVER0 (GICR_SGIBASE_OFFSET + U(0x300)) +#define GICR_ICACTIVER0 (GICR_SGIBASE_OFFSET + U(0x380)) +#define GICR_IPRIORITYR (GICR_SGIBASE_OFFSET + U(0x400)) +#define GICR_ICFGR0 (GICR_SGIBASE_OFFSET + U(0xc00)) +#define GICR_ICFGR1 (GICR_SGIBASE_OFFSET + U(0xc04)) +#define GICR_IGRPMODR0 (GICR_SGIBASE_OFFSET + U(0xd00)) +#define GICR_NSACR (GICR_SGIBASE_OFFSET + U(0xe00)) + +#define GICR_IGROUPR GICR_IGROUPR0 +#define GICR_ISENABLER GICR_ISENABLER0 +#define GICR_ICENABLER GICR_ICENABLER0 +#define GICR_ISPENDR GICR_ISPENDR0 +#define GICR_ICPENDR GICR_ICPENDR0 +#define GICR_ISACTIVER GICR_ISACTIVER0 +#define GICR_ICACTIVER GICR_ICACTIVER0 +#define GICR_ICFGR GICR_ICFGR0 +#define GICR_IGRPMODR GICR_IGRPMODR0 + +/* GICR_CTLR bit definitions */ +#define GICR_CTLR_UWP_SHIFT 31 +#define GICR_CTLR_UWP_MASK U(0x1) +#define GICR_CTLR_UWP_BIT BIT_32(GICR_CTLR_UWP_SHIFT) +#define GICR_CTLR_DPG1S_SHIFT 26 +#define GICR_CTLR_DPG1S_MASK U(0x1) +#define GICR_CTLR_DPG1S_BIT BIT_32(GICR_CTLR_DPG1S_SHIFT) +#define GICR_CTLR_DPG1NS_SHIFT 25 +#define GICR_CTLR_DPG1NS_MASK U(0x1) +#define GICR_CTLR_DPG1NS_BIT BIT_32(GICR_CTLR_DPG1NS_SHIFT) +#define GICR_CTLR_DPG0_SHIFT 24 +#define GICR_CTLR_DPG0_MASK U(0x1) +#define GICR_CTLR_DPG0_BIT BIT_32(GICR_CTLR_DPG0_SHIFT) +#define GICR_CTLR_RWP_SHIFT 3 +#define GICR_CTLR_RWP_MASK U(0x1) +#define GICR_CTLR_RWP_BIT BIT_32(GICR_CTLR_RWP_SHIFT) +#define GICR_CTLR_EN_LPIS_BIT BIT_32(0) + +/* GICR_WAKER bit definitions */ +#define WAKER_CA_SHIFT 2 +#define WAKER_PS_SHIFT 1 + +#define WAKER_CA_MASK U(0x1) +#define WAKER_PS_MASK U(0x1) + +#define WAKER_CA_BIT BIT_32(WAKER_CA_SHIFT) +#define WAKER_PS_BIT BIT_32(WAKER_PS_SHIFT) + +/* GICR_TYPER bit definitions */ +#define TYPER_AFF_VAL_SHIFT 32 +#define TYPER_PROC_NUM_SHIFT 8 +#define TYPER_LAST_SHIFT 4 +#define TYPER_VLPI_SHIFT 1 + +#define TYPER_AFF_VAL_MASK U(0xffffffff) +#define TYPER_PROC_NUM_MASK U(0xffff) +#define TYPER_LAST_MASK U(0x1) + +#define TYPER_LAST_BIT BIT_32(TYPER_LAST_SHIFT) +#define TYPER_VLPI_BIT BIT_32(TYPER_VLPI_SHIFT) + +#define TYPER_PPI_NUM_SHIFT U(27) +#define TYPER_PPI_NUM_MASK U(0x1f) + +/* GICR_IIDR bit definitions */ +#define IIDR_PRODUCT_ID_MASK U(0xff) +#define IIDR_VARIANT_MASK U(0xf) +#define IIDR_REV_MASK U(0xf) +#define IIDR_IMPLEMENTER_MASK U(0xfff) +#define IIDR_PRODUCT_ID_SHIFT 24 +#define IIDR_VARIANT_SHIFT 16 +#define IIDR_REV_SHIFT 12 +#define IIDR_IMPLEMENTER_SHIFT 0 +#define IIDR_PRODUCT_ID_BIT BIT_32(IIDR_PRODUCT_ID_SHIFT) +#define IIDR_VARIANT_BIT BIT_32(IIDR_VARIANT_SHIFT) +#define IIDR_REV_BIT BIT_32(IIDR_REVISION_SHIFT) +#define IIDR_IMPLEMENTER_BIT BIT_32(IIDR_IMPLEMENTER_SHIFT) + +#define IIDR_MODEL_MASK (IIDR_PRODUCT_ID_MASK << IIDR_PRODUCT_ID_SHIFT | \ + IIDR_IMPLEMENTER_MASK << IIDR_IMPLEMENTER_SHIFT) + +#define GIC_PRODUCT_ID_GIC600 U(0x2) +#define GIC_PRODUCT_ID_GIC600AE U(0x3) +#define GIC_PRODUCT_ID_GIC700 U(0x4) + +/* + * Note that below revisions and variants definations are as per GIC600/GIC600AE + * specification. + */ +#define GIC_REV_P0 U(0x1) +#define GIC_REV_P1 U(0x3) +#define GIC_REV_P2 U(0x4) +#define GIC_REV_P3 U(0x5) +#define GIC_REV_P4 U(0x6) +#define GIC_REV_P6 U(0x7) + +#define GIC_VARIANT_R0 U(0x0) +#define GIC_VARIANT_R1 U(0x1) +#define GIC_VARIANT_R2 U(0x2) + +/******************************************************************************* + * GICv3 and 3.1 CPU interface registers & constants + ******************************************************************************/ +/* ICC_SRE bit definitions */ +#define ICC_SRE_EN_BIT BIT_32(3) +#define ICC_SRE_DIB_BIT BIT_32(2) +#define ICC_SRE_DFB_BIT BIT_32(1) +#define ICC_SRE_SRE_BIT BIT_32(0) + +/* ICC_IGRPEN1_EL3 bit definitions */ +#define IGRPEN1_EL3_ENABLE_G1NS_SHIFT 0 +#define IGRPEN1_EL3_ENABLE_G1S_SHIFT 1 + +#define IGRPEN1_EL3_ENABLE_G1NS_BIT BIT_32(IGRPEN1_EL3_ENABLE_G1NS_SHIFT) +#define IGRPEN1_EL3_ENABLE_G1S_BIT BIT_32(IGRPEN1_EL3_ENABLE_G1S_SHIFT) + +/* ICC_IGRPEN0_EL1 bit definitions */ +#define IGRPEN1_EL1_ENABLE_G0_SHIFT 0 +#define IGRPEN1_EL1_ENABLE_G0_BIT BIT_32(IGRPEN1_EL1_ENABLE_G0_SHIFT) + +/* ICC_HPPIR0_EL1 bit definitions */ +#define HPPIR0_EL1_INTID_SHIFT 0 +#define HPPIR0_EL1_INTID_MASK U(0xffffff) + +/* ICC_HPPIR1_EL1 bit definitions */ +#define HPPIR1_EL1_INTID_SHIFT 0 +#define HPPIR1_EL1_INTID_MASK U(0xffffff) + +/* ICC_IAR0_EL1 bit definitions */ +#define IAR0_EL1_INTID_SHIFT 0 +#define IAR0_EL1_INTID_MASK U(0xffffff) + +/* ICC_IAR1_EL1 bit definitions */ +#define IAR1_EL1_INTID_SHIFT 0 +#define IAR1_EL1_INTID_MASK U(0xffffff) + +/* ICC SGI macros */ +#define SGIR_TGT_MASK ULL(0xffff) +#define SGIR_AFF1_SHIFT 16 +#define SGIR_INTID_SHIFT 24 +#define SGIR_INTID_MASK ULL(0xf) +#define SGIR_AFF2_SHIFT 32 +#define SGIR_IRM_SHIFT 40 +#define SGIR_IRM_MASK ULL(0x1) +#define SGIR_AFF3_SHIFT 48 +#define SGIR_AFF_MASK ULL(0xff) + +#define SGIR_IRM_TO_AFF U(0) + +#define GICV3_SGIR_VALUE(_aff3, _aff2, _aff1, _intid, _irm, _tgt) \ + ((((uint64_t) (_aff3) & SGIR_AFF_MASK) << SGIR_AFF3_SHIFT) | \ + (((uint64_t) (_irm) & SGIR_IRM_MASK) << SGIR_IRM_SHIFT) | \ + (((uint64_t) (_aff2) & SGIR_AFF_MASK) << SGIR_AFF2_SHIFT) | \ + (((_intid) & SGIR_INTID_MASK) << SGIR_INTID_SHIFT) | \ + (((_aff1) & SGIR_AFF_MASK) << SGIR_AFF1_SHIFT) | \ + ((_tgt) & SGIR_TGT_MASK)) + +/***************************************************************************** + * GICv3 and 3.1 ITS registers and constants + *****************************************************************************/ +#define GITS_CTLR U(0x0) +#define GITS_IIDR U(0x4) +#define GITS_TYPER U(0x8) +#define GITS_CBASER U(0x80) +#define GITS_CWRITER U(0x88) +#define GITS_CREADR U(0x90) +#define GITS_BASER U(0x100) + +/* GITS_CTLR bit definitions */ +#define GITS_CTLR_ENABLED_BIT BIT_32(0) +#define GITS_CTLR_QUIESCENT_BIT BIT_32(1) + +#define GITS_TYPER_VSGI BIT_64(39) + +#ifndef __ASSEMBLER__ + +#include <stdbool.h> +#include <stdint.h> + +#include <arch_helpers.h> +#include <common/interrupt_props.h> +#include <drivers/arm/gic_common.h> +#include <lib/utils_def.h> + +typedef enum { + GICV3_G1S, + GICV3_G1NS, + GICV3_G0 +} gicv3_irq_group_t; + +static inline uintptr_t gicv3_redist_size(uint64_t typer_val) +{ +#if GIC_ENABLE_V4_EXTN + if ((typer_val & TYPER_VLPI_BIT) != 0U) { + return 1U << GICR_V4_PCPUBASE_SHIFT; + } else { + return 1U << GICR_V3_PCPUBASE_SHIFT; + } +#else + return 1U << GICR_V3_PCPUBASE_SHIFT; +#endif +} + +unsigned int gicv3_get_component_partnum(const uintptr_t gic_frame); + +static inline bool gicv3_is_intr_id_special_identifier(unsigned int id) +{ + return (id >= PENDING_G1S_INTID) && (id <= GIC_SPURIOUS_INTERRUPT); +} + +/******************************************************************************* + * Helper GICv3 and 3.1 macros for SEL1 + ******************************************************************************/ +static inline uint32_t gicv3_acknowledge_interrupt_sel1(void) +{ + return (uint32_t)read_icc_iar1_el1() & IAR1_EL1_INTID_MASK; +} + +static inline uint32_t gicv3_get_pending_interrupt_id_sel1(void) +{ + return (uint32_t)read_icc_hppir1_el1() & HPPIR1_EL1_INTID_MASK; +} + +static inline void gicv3_end_of_interrupt_sel1(unsigned int id) +{ + /* + * Interrupt request deassertion from peripheral to GIC happens + * by clearing interrupt condition by a write to the peripheral + * register. It is desired that the write transfer is complete + * before the core tries to change GIC state from 'AP/Active' to + * a new state on seeing 'EOI write'. + * Since ICC interface writes are not ordered against Device + * memory writes, a barrier is required to ensure the ordering. + * The dsb will also ensure *completion* of previous writes with + * DEVICE nGnRnE attribute. + */ + dsbishst(); + write_icc_eoir1_el1(id); +} + +/******************************************************************************* + * Helper GICv3 macros for EL3 + ******************************************************************************/ +static inline uint32_t gicv3_acknowledge_interrupt(void) +{ + return (uint32_t)read_icc_iar0_el1() & IAR0_EL1_INTID_MASK; +} + +static inline void gicv3_end_of_interrupt(unsigned int id) +{ + /* + * Interrupt request deassertion from peripheral to GIC happens + * by clearing interrupt condition by a write to the peripheral + * register. It is desired that the write transfer is complete + * before the core tries to change GIC state from 'AP/Active' to + * a new state on seeing 'EOI write'. + * Since ICC interface writes are not ordered against Device + * memory writes, a barrier is required to ensure the ordering. + * The dsb will also ensure *completion* of previous writes with + * DEVICE nGnRnE attribute. + */ + dsbishst(); + return write_icc_eoir0_el1(id); +} + +/* + * This macro returns the total number of GICD/GICR registers corresponding to + * the register name + */ +#define GICD_NUM_REGS(reg_name) \ + DIV_ROUND_UP_2EVAL(TOTAL_SHARED_INTR_NUM, (1 << reg_name##_SHIFT)) + +#define GICR_NUM_REGS(reg_name) \ + DIV_ROUND_UP_2EVAL(TOTAL_PRIVATE_INTR_NUM, (1 << reg_name##_SHIFT)) + +/* Interrupt ID mask for HPPIR, AHPPIR, IAR and AIAR CPU Interface registers */ +#define INT_ID_MASK U(0xffffff) + +/******************************************************************************* + * This structure describes some of the implementation defined attributes of the + * GICv3 IP. It is used by the platform port to specify these attributes in order + * to initialise the GICV3 driver. The attributes are described below. + * + * The 'gicd_base' field contains the base address of the Distributor interface + * programmer's view. + * + * The 'gicr_base' field contains the base address of the Re-distributor + * interface programmer's view. + * + * The 'interrupt_props' field is a pointer to an array that enumerates secure + * interrupts and their properties. If this field is not NULL, both + * 'g0_interrupt_array' and 'g1s_interrupt_array' fields are ignored. + * + * The 'interrupt_props_num' field contains the number of entries in the + * 'interrupt_props' array. If this field is non-zero, both 'g0_interrupt_num' + * and 'g1s_interrupt_num' are ignored. + * + * The 'rdistif_num' field contains the number of Redistributor interfaces the + * GIC implements. This is equal to the number of CPUs or CPU interfaces + * instantiated in the GIC. + * + * The 'rdistif_base_addrs' field is a pointer to an array that has an entry for + * storing the base address of the Redistributor interface frame of each CPU in + * the system. The size of the array = 'rdistif_num'. The base addresses are + * detected during driver initialisation. + * + * The 'mpidr_to_core_pos' field is a pointer to a hash function which the + * driver will use to convert an MPIDR value to a linear core index. This index + * will be used for accessing the 'rdistif_base_addrs' array. This is an + * optional field. A GICv3 implementation maps each MPIDR to a linear core index + * as well. This mapping can be found by reading the "Affinity Value" and + * "Processor Number" fields in the GICR_TYPER. It is IMP. DEF. if the + * "Processor Numbers" are suitable to index into an array to access core + * specific information. If this not the case, the platform port must provide a + * hash function. Otherwise, the "Processor Number" field will be used to access + * the array elements. + ******************************************************************************/ +typedef unsigned int (*mpidr_hash_fn)(u_register_t mpidr); + +typedef struct gicv3_driver_data { + uintptr_t gicd_base; + uintptr_t gicr_base; + const interrupt_prop_t *interrupt_props; + unsigned int interrupt_props_num; + unsigned int rdistif_num; + uintptr_t *rdistif_base_addrs; + mpidr_hash_fn mpidr_to_core_pos; +} gicv3_driver_data_t; + +typedef struct gicv3_redist_ctx { + /* 64 bits registers */ + uint64_t gicr_propbaser; + uint64_t gicr_pendbaser; + + /* 32 bits registers */ + uint32_t gicr_ctlr; + uint32_t gicr_igroupr[GICR_NUM_REGS(IGROUPR)]; + uint32_t gicr_isenabler[GICR_NUM_REGS(ISENABLER)]; + uint32_t gicr_ispendr[GICR_NUM_REGS(ISPENDR)]; + uint32_t gicr_isactiver[GICR_NUM_REGS(ISACTIVER)]; + uint32_t gicr_ipriorityr[GICR_NUM_REGS(IPRIORITYR)]; + uint32_t gicr_icfgr[GICR_NUM_REGS(ICFGR)]; + uint32_t gicr_igrpmodr[GICR_NUM_REGS(IGRPMODR)]; + uint32_t gicr_nsacr; +} gicv3_redist_ctx_t; + +typedef struct gicv3_dist_ctx { + /* 64 bits registers */ + uint64_t gicd_irouter[TOTAL_SHARED_INTR_NUM]; + + /* 32 bits registers */ + uint32_t gicd_ctlr; + uint32_t gicd_igroupr[GICD_NUM_REGS(IGROUPR)]; + uint32_t gicd_isenabler[GICD_NUM_REGS(ISENABLER)]; + uint32_t gicd_ispendr[GICD_NUM_REGS(ISPENDR)]; + uint32_t gicd_isactiver[GICD_NUM_REGS(ISACTIVER)]; + uint32_t gicd_ipriorityr[GICD_NUM_REGS(IPRIORITYR)]; + uint32_t gicd_icfgr[GICD_NUM_REGS(ICFGR)]; + uint32_t gicd_igrpmodr[GICD_NUM_REGS(IGRPMODR)]; + uint32_t gicd_nsacr[GICD_NUM_REGS(NSACR)]; +} gicv3_dist_ctx_t; + +typedef struct gicv3_its_ctx { + /* 64 bits registers */ + uint64_t gits_cbaser; + uint64_t gits_cwriter; + uint64_t gits_baser[8]; + + /* 32 bits registers */ + uint32_t gits_ctlr; +} gicv3_its_ctx_t; + +/******************************************************************************* + * GICv3 EL3 driver API + ******************************************************************************/ +void gicv3_driver_init(const gicv3_driver_data_t *plat_driver_data); +int gicv3_rdistif_probe(const uintptr_t gicr_frame); +void gicv3_distif_init(void); +void gicv3_rdistif_init(unsigned int proc_num); +void gicv3_rdistif_on(unsigned int proc_num); +void gicv3_rdistif_off(unsigned int proc_num); +unsigned int gicv3_rdistif_get_number_frames(const uintptr_t gicr_frame); +void gicv3_cpuif_enable(unsigned int proc_num); +void gicv3_cpuif_disable(unsigned int proc_num); +unsigned int gicv3_get_pending_interrupt_type(void); +unsigned int gicv3_get_pending_interrupt_id(void); +unsigned int gicv3_get_interrupt_group(unsigned int id, + unsigned int proc_num); +void gicv3_distif_init_restore(const gicv3_dist_ctx_t * const dist_ctx); +void gicv3_distif_save(gicv3_dist_ctx_t * const dist_ctx); +/* + * gicv3_distif_post_restore and gicv3_distif_pre_save must be implemented if + * gicv3_distif_save and gicv3_rdistif_init_restore are used. If no + * implementation-defined sequence is needed at these steps, an empty function + * can be provided. + */ +void gicv3_distif_post_restore(unsigned int proc_num); +void gicv3_distif_pre_save(unsigned int proc_num); +void gicv3_rdistif_init_restore(unsigned int proc_num, const gicv3_redist_ctx_t * const rdist_ctx); +void gicv3_rdistif_save(unsigned int proc_num, gicv3_redist_ctx_t * const rdist_ctx); +void gicv3_its_save_disable(uintptr_t gits_base, gicv3_its_ctx_t * const its_ctx); +void gicv3_its_restore(uintptr_t gits_base, const gicv3_its_ctx_t * const its_ctx); + +unsigned int gicv3_get_running_priority(void); +unsigned int gicv3_get_interrupt_active(unsigned int id, unsigned int proc_num); +void gicv3_enable_interrupt(unsigned int id, unsigned int proc_num); +void gicv3_disable_interrupt(unsigned int id, unsigned int proc_num); +void gicv3_set_interrupt_priority(unsigned int id, unsigned int proc_num, + unsigned int priority); +void gicv3_set_interrupt_group(unsigned int id, unsigned int proc_num, + unsigned int group); +void gicv3_raise_sgi(unsigned int sgi_num, gicv3_irq_group_t group, + u_register_t target); +void gicv3_set_spi_routing(unsigned int id, unsigned int irm, + u_register_t mpidr); +void gicv3_set_interrupt_pending(unsigned int id, unsigned int proc_num); +void gicv3_clear_interrupt_pending(unsigned int id, unsigned int proc_num); +unsigned int gicv3_set_pmr(unsigned int mask); + +void gicv3_get_component_prodid_rev(const uintptr_t gicd_base, + unsigned int *gic_prod_id, + uint8_t *gic_rev); +void gicv3_check_erratas_applies(const uintptr_t gicd_base); +#if GIC600_ERRATA_WA_2384374 +void gicv3_apply_errata_wa_2384374(const uintptr_t gicr_base); +#else +static inline void gicv3_apply_errata_wa_2384374(const uintptr_t gicr_base) +{ +} +#endif /* GIC600_ERRATA_WA_2384374 */ + +#endif /* __ASSEMBLER__ */ +#endif /* GICV3_H */ |