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#ifndef OPENPIC_H
#define OPENPIC_H
#include "hw/sysbus.h"
#include "hw/core/cpu.h"
#include "qom/object.h"
#define MAX_CPU 32
#define MAX_MSI 8
#define VID 0x03 /* MPIC version ID */
/* OpenPIC have 5 outputs per CPU connected and one IRQ out single output */
enum {
OPENPIC_OUTPUT_INT = 0, /* IRQ */
OPENPIC_OUTPUT_CINT, /* critical IRQ */
OPENPIC_OUTPUT_MCK, /* Machine check event */
OPENPIC_OUTPUT_DEBUG, /* Inconditional debug event */
OPENPIC_OUTPUT_RESET, /* Core reset event */
OPENPIC_OUTPUT_NB,
};
typedef struct IrqLines { qemu_irq irq[OPENPIC_OUTPUT_NB]; } IrqLines;
#define OPENPIC_MODEL_FSL_MPIC_20 1
#define OPENPIC_MODEL_FSL_MPIC_42 2
#define OPENPIC_MODEL_KEYLARGO 3
#define OPENPIC_MAX_SRC 256
#define OPENPIC_MAX_TMR 4
#define OPENPIC_MAX_IPI 4
#define OPENPIC_MAX_IRQ (OPENPIC_MAX_SRC + OPENPIC_MAX_IPI + \
OPENPIC_MAX_TMR)
/* KeyLargo */
#define KEYLARGO_MAX_CPU 4
#define KEYLARGO_MAX_EXT 64
#define KEYLARGO_MAX_IPI 4
#define KEYLARGO_MAX_IRQ (64 + KEYLARGO_MAX_IPI)
#define KEYLARGO_MAX_TMR 0
#define KEYLARGO_IPI_IRQ (KEYLARGO_MAX_EXT) /* First IPI IRQ */
/* Timers don't exist but this makes the code happy... */
#define KEYLARGO_TMR_IRQ (KEYLARGO_IPI_IRQ + KEYLARGO_MAX_IPI)
typedef struct FslMpicInfo {
int max_ext;
} FslMpicInfo;
typedef enum IRQType {
IRQ_TYPE_NORMAL = 0,
IRQ_TYPE_FSLINT, /* FSL internal interrupt -- level only */
IRQ_TYPE_FSLSPECIAL, /* FSL timer/IPI interrupt, edge, no polarity */
} IRQType;
/*
* Round up to the nearest 64 IRQs so that the queue length
* won't change when moving between 32 and 64 bit hosts.
*/
#define IRQQUEUE_SIZE_BITS ((OPENPIC_MAX_IRQ + 63) & ~63)
typedef struct IRQQueue {
unsigned long *queue;
int32_t queue_size; /* Only used for VMSTATE_BITMAP */
int next;
int priority;
} IRQQueue;
typedef struct IRQSource {
uint32_t ivpr; /* IRQ vector/priority register */
uint32_t idr; /* IRQ destination register */
uint32_t destmask; /* bitmap of CPU destinations */
int last_cpu;
int output; /* IRQ level, e.g. OPENPIC_OUTPUT_INT */
int pending; /* TRUE if IRQ is pending */
IRQType type;
bool level:1; /* level-triggered */
bool nomask:1; /* critical interrupts ignore mask on some FSL MPICs */
} IRQSource;
#define IVPR_MASK_SHIFT 31
#define IVPR_MASK_MASK (1U << IVPR_MASK_SHIFT)
#define IVPR_ACTIVITY_SHIFT 30
#define IVPR_ACTIVITY_MASK (1U << IVPR_ACTIVITY_SHIFT)
#define IVPR_MODE_SHIFT 29
#define IVPR_MODE_MASK (1U << IVPR_MODE_SHIFT)
#define IVPR_POLARITY_SHIFT 23
#define IVPR_POLARITY_MASK (1U << IVPR_POLARITY_SHIFT)
#define IVPR_SENSE_SHIFT 22
#define IVPR_SENSE_MASK (1U << IVPR_SENSE_SHIFT)
#define IVPR_PRIORITY_MASK (0xFU << 16)
#define IVPR_PRIORITY(_ivprr_) ((int)(((_ivprr_) & IVPR_PRIORITY_MASK) >> 16))
#define IVPR_VECTOR(opp, _ivprr_) ((_ivprr_) & (opp)->vector_mask)
/* IDR[EP/CI] are only for FSL MPIC prior to v4.0 */
#define IDR_EP 0x80000000 /* external pin */
#define IDR_CI 0x40000000 /* critical interrupt */
typedef struct OpenPICTimer {
uint32_t tccr; /* Global timer current count register */
uint32_t tbcr; /* Global timer base count register */
int n_IRQ;
bool qemu_timer_active; /* Is the qemu_timer is running? */
struct QEMUTimer *qemu_timer;
struct OpenPICState *opp; /* Device timer is part of. */
/*
* The QEMU_CLOCK_VIRTUAL time (in ns) corresponding to the last
* current_count written or read, only defined if qemu_timer_active.
*/
uint64_t origin_time;
} OpenPICTimer;
typedef struct OpenPICMSI {
uint32_t msir; /* Shared Message Signaled Interrupt Register */
} OpenPICMSI;
typedef struct IRQDest {
int32_t ctpr; /* CPU current task priority */
IRQQueue raised;
IRQQueue servicing;
qemu_irq *irqs;
/* Count of IRQ sources asserting on non-INT outputs */
uint32_t outputs_active[OPENPIC_OUTPUT_NB];
} IRQDest;
#define TYPE_OPENPIC "openpic"
OBJECT_DECLARE_SIMPLE_TYPE(OpenPICState, OPENPIC)
struct OpenPICState {
/*< private >*/
SysBusDevice parent_obj;
/*< public >*/
MemoryRegion mem;
/* Behavior control */
FslMpicInfo *fsl;
uint32_t model;
uint32_t flags;
uint32_t nb_irqs;
uint32_t vid;
uint32_t vir; /* Vendor identification register */
uint32_t vector_mask;
uint32_t tfrr_reset;
uint32_t ivpr_reset;
uint32_t idr_reset;
uint32_t brr1;
uint32_t mpic_mode_mask;
/* Sub-regions */
MemoryRegion sub_io_mem[6];
/* Global registers */
uint32_t frr; /* Feature reporting register */
uint32_t gcr; /* Global configuration register */
uint32_t pir; /* Processor initialization register */
uint32_t spve; /* Spurious vector register */
uint32_t tfrr; /* Timer frequency reporting register */
/* Source registers */
IRQSource src[OPENPIC_MAX_IRQ];
/* Local registers per output pin */
IRQDest dst[MAX_CPU];
uint32_t nb_cpus;
/* Timer registers */
OpenPICTimer timers[OPENPIC_MAX_TMR];
uint32_t max_tmr;
/* Shared MSI registers */
OpenPICMSI msi[MAX_MSI];
uint32_t max_irq;
uint32_t irq_ipi0;
uint32_t irq_tim0;
uint32_t irq_msi;
};
#endif /* OPENPIC_H */
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