include/hw/ppc/ppc.h

   1 #ifndef HW_PPC_H
   2 #define HW_PPC_H
   3
   4 #include "target/ppc/cpu-qom.h"
   5
   6 void ppc_set_irq(PowerPCCPU *cpu, int n_IRQ, int level);
   7 PowerPCCPU *ppc_get_vcpu_by_pir(int pir);
   8 int ppc_cpu_pir(PowerPCCPU *cpu);
   9 int ppc_cpu_tir(PowerPCCPU *cpu);
  10
  11 /* PowerPC hardware exceptions management helpers */
  12 typedef void (*clk_setup_cb)(void *opaque, uint32_t freq);
  13 typedef struct clk_setup_t clk_setup_t;
  14 struct clk_setup_t {
  15     clk_setup_cb cb;
  16     void *opaque;
  17 };
  18 static inline void clk_setup (clk_setup_t *clk, uint32_t freq)
  19 {
  20     if (clk->cb != NULL)
  21         (*clk->cb)(clk->opaque, freq);
  22 }
  23
  24 struct ppc_tb_t {
  25     /* Time base management */
  26     int64_t  tb_offset;    /* Compensation                    */
  27     int64_t  atb_offset;   /* Compensation                    */
  28     int64_t  vtb_offset;
  29     uint32_t tb_freq;      /* TB frequency                    */
  30     /* Decrementer management */
  31     uint64_t decr_next;    /* Tick for next decr interrupt    */
  32     uint32_t decr_freq;    /* decrementer frequency           */
  33     QEMUTimer *decr_timer;
  34     /* Hypervisor decrementer management */
  35     uint64_t hdecr_next;    /* Tick for next hdecr interrupt  */
  36     QEMUTimer *hdecr_timer;
  37     int64_t purr_offset;
  38     void *opaque;
  39     uint32_t flags;
  40 };
  41
  42 /* PPC Timers flags */
  43 #define PPC_TIMER_BOOKE              (1 << 0) /* Enable Booke support */
  44 #define PPC_TIMER_E500               (1 << 1) /* Enable e500 support */
  45 #define PPC_DECR_UNDERFLOW_TRIGGERED (1 << 2) /* Decr interrupt triggered when
  46                                                * the most significant bit
  47                                                * changes from 0 to 1.
  48                                                */
  49 #define PPC_DECR_ZERO_TRIGGERED      (1 << 3) /* Decr interrupt triggered when
  50                                                * the decrementer reaches zero.
  51                                                */
  52 #define PPC_DECR_UNDERFLOW_LEVEL     (1 << 4) /* Decr interrupt active when
  53                                                * the most significant bit is 1.
  54                                                */
  55
  56 uint64_t cpu_ppc_get_tb(ppc_tb_t *tb_env, uint64_t vmclk, int64_t tb_offset);
  57 void cpu_ppc_tb_init(CPUPPCState *env, uint32_t freq);
  58 void cpu_ppc_tb_reset(CPUPPCState *env);
  59 void cpu_ppc_tb_free(CPUPPCState *env);
  60 void cpu_ppc_hdecr_init(CPUPPCState *env);
  61 void cpu_ppc_hdecr_exit(CPUPPCState *env);
  62
  63 /* Embedded PowerPC DCR management */
  64 typedef uint32_t (*dcr_read_cb)(void *opaque, int dcrn);
  65 typedef void (*dcr_write_cb)(void *opaque, int dcrn, uint32_t val);
  66 int ppc_dcr_init (CPUPPCState *env, int (*dcr_read_error)(int dcrn),
  67                   int (*dcr_write_error)(int dcrn));
  68 int ppc_dcr_register (CPUPPCState *env, int dcrn, void *opaque,
  69                       dcr_read_cb drc_read, dcr_write_cb dcr_write);
  70 clk_setup_cb ppc_40x_timers_init (CPUPPCState *env, uint32_t freq,
  71                                   unsigned int decr_excp);
  72
  73 /* Embedded PowerPC reset */
  74 void ppc40x_core_reset(PowerPCCPU *cpu);
  75 void ppc40x_chip_reset(PowerPCCPU *cpu);
  76 void ppc40x_system_reset(PowerPCCPU *cpu);
  77
  78 #if defined(CONFIG_USER_ONLY)
  79 static inline void ppc40x_irq_init(PowerPCCPU *cpu) {}
  80 static inline void ppc6xx_irq_init(PowerPCCPU *cpu) {}
  81 static inline void ppc970_irq_init(PowerPCCPU *cpu) {}
  82 static inline void ppcPOWER7_irq_init(PowerPCCPU *cpu) {}
  83 static inline void ppcPOWER9_irq_init(PowerPCCPU *cpu) {}
  84 static inline void ppce500_irq_init(PowerPCCPU *cpu) {}
  85 static inline void ppc_irq_reset(PowerPCCPU *cpu) {}
  86 #else
  87 void ppc40x_irq_init(PowerPCCPU *cpu);
  88 void ppce500_irq_init(PowerPCCPU *cpu);
  89 void ppc6xx_irq_init(PowerPCCPU *cpu);
  90 void ppc970_irq_init(PowerPCCPU *cpu);
  91 void ppcPOWER7_irq_init(PowerPCCPU *cpu);
  92 void ppcPOWER9_irq_init(PowerPCCPU *cpu);
  93 void ppc_irq_reset(PowerPCCPU *cpu);
  94 #endif
  95
  96 /* PPC machines for OpenBIOS */
  97 enum {
  98     ARCH_PREP = 0,
  99     ARCH_MAC99,
 100     ARCH_HEATHROW,
 101     ARCH_MAC99_U3,
 102 };
 103
 104 #define FW_CFG_PPC_WIDTH        (FW_CFG_ARCH_LOCAL + 0x00)
 105 #define FW_CFG_PPC_HEIGHT       (FW_CFG_ARCH_LOCAL + 0x01)
 106 #define FW_CFG_PPC_DEPTH        (FW_CFG_ARCH_LOCAL + 0x02)
 107 #define FW_CFG_PPC_TBFREQ       (FW_CFG_ARCH_LOCAL + 0x03)
 108 #define FW_CFG_PPC_CLOCKFREQ    (FW_CFG_ARCH_LOCAL + 0x04)
 109 #define FW_CFG_PPC_IS_KVM       (FW_CFG_ARCH_LOCAL + 0x05)
 110 #define FW_CFG_PPC_KVM_HC       (FW_CFG_ARCH_LOCAL + 0x06)
 111 #define FW_CFG_PPC_KVM_PID      (FW_CFG_ARCH_LOCAL + 0x07)
 112 #define FW_CFG_PPC_NVRAM_ADDR   (FW_CFG_ARCH_LOCAL + 0x08)
 113 #define FW_CFG_PPC_BUSFREQ      (FW_CFG_ARCH_LOCAL + 0x09)
 114 #define FW_CFG_PPC_NVRAM_FLAT   (FW_CFG_ARCH_LOCAL + 0x0a)
 115 #define FW_CFG_PPC_VIACONFIG    (FW_CFG_ARCH_LOCAL + 0x0b)
 116
 117 #define PPC_SERIAL_MM_BAUDBASE 399193
 118
 119 /* ppc_booke.c */
 120 void ppc_booke_timers_init(PowerPCCPU *cpu, uint32_t freq, uint32_t flags);
 121 #endif