include/hw/ppc/pnv_psi.h

   1 /*
   2  * QEMU PowerPC PowerNV Processor Service Interface (PSI) model
   3  *
   4  * Copyright (c) 2015-2017, IBM Corporation.
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19 #ifndef _PPC_PNV_PSI_H
  20 #define _PPC_PNV_PSI_H
  21
  22 #include "hw/sysbus.h"
  23 #include "hw/ppc/xics.h"
  24
  25 #define TYPE_PNV_PSI "pnv-psi"
  26 #define PNV_PSI(obj) \
  27      OBJECT_CHECK(PnvPsi, (obj), TYPE_PNV_PSI)
  28
  29 #define PSIHB_XSCOM_MAX         0x20
  30
  31 typedef struct PnvPsi {
  32     SysBusDevice parent;
  33
  34     MemoryRegion regs_mr;
  35     uint64_t bar;
  36
  37     /* FSP region not supported */
  38     /* MemoryRegion fsp_mr; */
  39     uint64_t fsp_bar;
  40
  41     /* Interrupt generation */
  42     qemu_irq *qirqs;
  43
  44     /* Registers */
  45     uint64_t regs[PSIHB_XSCOM_MAX];
  46
  47     MemoryRegion xscom_regs;
  48 } PnvPsi;
  49
  50 #define TYPE_PNV8_PSI TYPE_PNV_PSI "-POWER8"
  51 #define PNV8_PSI(obj) \
  52     OBJECT_CHECK(Pnv8Psi, (obj), TYPE_PNV8_PSI)
  53
  54 typedef struct Pnv8Psi {
  55     PnvPsi   parent;
  56
  57     ICSState ics;
  58 } Pnv8Psi;
  59
  60 #define PNV_PSI_CLASS(klass) \
  61      OBJECT_CLASS_CHECK(PnvPsiClass, (klass), TYPE_PNV_PSI)
  62 #define PNV_PSI_GET_CLASS(obj) \
  63      OBJECT_GET_CLASS(PnvPsiClass, (obj), TYPE_PNV_PSI)
  64
  65 typedef struct PnvPsiClass {
  66     SysBusDeviceClass parent_class;
  67
  68     int chip_type;
  69     uint32_t xscom_pcba;
  70     uint32_t xscom_size;
  71     uint64_t bar_mask;
  72
  73     void (*irq_set)(PnvPsi *psi, int, bool state);
  74 } PnvPsiClass;
  75
  76 /* The PSI and FSP interrupts are muxed on the same IRQ number */
  77 typedef enum PnvPsiIrq {
  78     PSIHB_IRQ_PSI, /* internal use only */
  79     PSIHB_IRQ_FSP, /* internal use only */
  80     PSIHB_IRQ_OCC,
  81     PSIHB_IRQ_FSI,
  82     PSIHB_IRQ_LPC_I2C,
  83     PSIHB_IRQ_LOCAL_ERR,
  84     PSIHB_IRQ_EXTERNAL,
  85 } PnvPsiIrq;
  86
  87 #define PSI_NUM_INTERRUPTS 6
  88
  89 void pnv_psi_irq_set(PnvPsi *psi, int irq, bool state);
  90
  91 #endif /* _PPC_PNV_PSI_H */