LXR qemu/include/hw/ppc/spapr

   1/*
   2 * QEMU PowerPC sPAPR IRQ backend definitions
   3 *
   4 * Copyright (c) 2018, IBM Corporation.
   5 *
   6 * This code is licensed under the GPL version 2 or later. See the
   7 * COPYING file in the top-level directory.
   8 */
   9
  10#ifndef HW_SPAPR_IRQ_H
  11#define HW_SPAPR_IRQ_H
  12
  13/*
  14 * IRQ range offsets per device type
  15 */
  16#define SPAPR_IRQ_EPOW       0x1000  /* XICS_IRQ_BASE offset */
  17#define SPAPR_IRQ_HOTPLUG    0x1001
  18#define SPAPR_IRQ_VIO        0x1100  /* 256 VIO devices */
  19#define SPAPR_IRQ_PCI_LSI    0x1200  /* 32+ PHBs devices */
  20
  21#define SPAPR_IRQ_MSI        0x1300  /* Offset of the dynamic range covered
  22                                      * by the bitmap allocator */
  23
  24typedef struct sPAPRMachineState sPAPRMachineState;
  25
  26void spapr_irq_msi_init(sPAPRMachineState *spapr, uint32_t nr_msis);
  27int spapr_irq_msi_alloc(sPAPRMachineState *spapr, uint32_t num, bool align,
  28                        Error **errp);
  29void spapr_irq_msi_free(sPAPRMachineState *spapr, int irq, uint32_t num);
  30void spapr_irq_msi_reset(sPAPRMachineState *spapr);
  31
  32typedef struct sPAPRIrq {
  33    uint32_t    nr_irqs;
  34    uint32_t    nr_msis;
  35
  36    void (*init)(sPAPRMachineState *spapr, Error **errp);
  37    int (*claim)(sPAPRMachineState *spapr, int irq, bool lsi, Error **errp);
  38    void (*free)(sPAPRMachineState *spapr, int irq, int num);
  39    qemu_irq (*qirq)(sPAPRMachineState *spapr, int irq);
  40    void (*print_info)(sPAPRMachineState *spapr, Monitor *mon);
  41} sPAPRIrq;
  42
  43extern sPAPRIrq spapr_irq_xics;
  44extern sPAPRIrq spapr_irq_xics_legacy;
  45
  46int spapr_irq_claim(sPAPRMachineState *spapr, int irq, bool lsi, Error **errp);
  47void spapr_irq_free(sPAPRMachineState *spapr, int irq, int num);
  48qemu_irq spapr_qirq(sPAPRMachineState *spapr, int irq);
  49
  50/*
  51 * XICS legacy routines
  52 */
  53int spapr_irq_find(sPAPRMachineState *spapr, int num, bool align, Error **errp);
  54#define spapr_irq_findone(spapr, errp) spapr_irq_find(spapr, 1, false, errp)
  55
  56#endif
  57