diff options
Diffstat (limited to 'include/hw/ppc/spapr_irq.h')
-rw-r--r-- | include/hw/ppc/spapr_irq.h | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/include/hw/ppc/spapr_irq.h b/include/hw/ppc/spapr_irq.h new file mode 100644 index 000000000..c22a72c9e --- /dev/null +++ b/include/hw/ppc/spapr_irq.h @@ -0,0 +1,117 @@ +/* + * QEMU PowerPC sPAPR IRQ backend definitions + * + * Copyright (c) 2018, IBM Corporation. + * + * This code is licensed under the GPL version 2 or later. See the + * COPYING file in the top-level directory. + */ + +#ifndef HW_SPAPR_IRQ_H +#define HW_SPAPR_IRQ_H + +#include "target/ppc/cpu-qom.h" +#include "qom/object.h" + +/* + * IRQ range offsets per device type + */ +#define SPAPR_IRQ_IPI 0x0 + +#define SPAPR_XIRQ_BASE XICS_IRQ_BASE /* 0x1000 */ +#define SPAPR_IRQ_EPOW (SPAPR_XIRQ_BASE + 0x0000) +#define SPAPR_IRQ_HOTPLUG (SPAPR_XIRQ_BASE + 0x0001) +#define SPAPR_IRQ_VIO (SPAPR_XIRQ_BASE + 0x0100) /* 256 VIO devices */ +#define SPAPR_IRQ_PCI_LSI (SPAPR_XIRQ_BASE + 0x0200) /* 32+ PHBs devices */ + +/* Offset of the dynamic range covered by the bitmap allocator */ +#define SPAPR_IRQ_MSI (SPAPR_XIRQ_BASE + 0x0300) + +#define SPAPR_NR_XIRQS 0x1000 + +struct SpaprMachineState; + +typedef struct SpaprInterruptController SpaprInterruptController; + +#define TYPE_SPAPR_INTC "spapr-interrupt-controller" +#define SPAPR_INTC(obj) \ + INTERFACE_CHECK(SpaprInterruptController, (obj), TYPE_SPAPR_INTC) +typedef struct SpaprInterruptControllerClass SpaprInterruptControllerClass; +DECLARE_CLASS_CHECKERS(SpaprInterruptControllerClass, SPAPR_INTC, + TYPE_SPAPR_INTC) + +struct SpaprInterruptControllerClass { + InterfaceClass parent; + + int (*activate)(SpaprInterruptController *intc, uint32_t nr_servers, + Error **errp); + void (*deactivate)(SpaprInterruptController *intc); + + /* + * These methods will typically be called on all intcs, active and + * inactive + */ + int (*cpu_intc_create)(SpaprInterruptController *intc, + PowerPCCPU *cpu, Error **errp); + void (*cpu_intc_reset)(SpaprInterruptController *intc, PowerPCCPU *cpu); + void (*cpu_intc_destroy)(SpaprInterruptController *intc, PowerPCCPU *cpu); + int (*claim_irq)(SpaprInterruptController *intc, int irq, bool lsi, + Error **errp); + void (*free_irq)(SpaprInterruptController *intc, int irq); + + /* These methods should only be called on the active intc */ + void (*set_irq)(SpaprInterruptController *intc, int irq, int val); + void (*print_info)(SpaprInterruptController *intc, Monitor *mon); + void (*dt)(SpaprInterruptController *intc, uint32_t nr_servers, + void *fdt, uint32_t phandle); + int (*post_load)(SpaprInterruptController *intc, int version_id); +}; + +void spapr_irq_update_active_intc(struct SpaprMachineState *spapr); + +int spapr_irq_cpu_intc_create(struct SpaprMachineState *spapr, + PowerPCCPU *cpu, Error **errp); +void spapr_irq_cpu_intc_reset(struct SpaprMachineState *spapr, PowerPCCPU *cpu); +void spapr_irq_cpu_intc_destroy(struct SpaprMachineState *spapr, PowerPCCPU *cpu); +void spapr_irq_print_info(struct SpaprMachineState *spapr, Monitor *mon); +void spapr_irq_dt(struct SpaprMachineState *spapr, uint32_t nr_servers, + void *fdt, uint32_t phandle); + +uint32_t spapr_irq_nr_msis(struct SpaprMachineState *spapr); +int spapr_irq_msi_alloc(struct SpaprMachineState *spapr, uint32_t num, bool align, + Error **errp); +void spapr_irq_msi_free(struct SpaprMachineState *spapr, int irq, uint32_t num); + +typedef struct SpaprIrq { + bool xics; + bool xive; +} SpaprIrq; + +extern SpaprIrq spapr_irq_xics; +extern SpaprIrq spapr_irq_xics_legacy; +extern SpaprIrq spapr_irq_xive; +extern SpaprIrq spapr_irq_dual; + +void spapr_irq_init(struct SpaprMachineState *spapr, Error **errp); +int spapr_irq_claim(struct SpaprMachineState *spapr, int irq, bool lsi, Error **errp); +void spapr_irq_free(struct SpaprMachineState *spapr, int irq, int num); +qemu_irq spapr_qirq(struct SpaprMachineState *spapr, int irq); +int spapr_irq_post_load(struct SpaprMachineState *spapr, int version_id); +void spapr_irq_reset(struct SpaprMachineState *spapr, Error **errp); +int spapr_irq_get_phandle(struct SpaprMachineState *spapr, void *fdt, Error **errp); + +typedef int (*SpaprInterruptControllerInitKvm)(SpaprInterruptController *, + uint32_t, Error **); + +int spapr_irq_init_kvm(SpaprInterruptControllerInitKvm fn, + SpaprInterruptController *intc, + uint32_t nr_servers, + Error **errp); + +/* + * XICS legacy routines + */ +int spapr_irq_find(struct SpaprMachineState *spapr, int num, bool align, Error **errp); +#define spapr_irq_findone(spapr, errp) spapr_irq_find(spapr, 1, false, errp) + +#endif |