hw/ppc.h

   1 void ppc_set_irq (CPUState *env, int n_IRQ, int level);
   2
   3 /* PowerPC hardware exceptions management helpers */
   4 typedef void (*clk_setup_cb)(void *opaque, uint32_t freq);
   5 typedef struct clk_setup_t clk_setup_t;
   6 struct clk_setup_t {
   7     clk_setup_cb cb;
   8     void *opaque;
   9 };
  10 static inline void clk_setup (clk_setup_t *clk, uint32_t freq)
  11 {
  12     if (clk->cb != NULL)
  13         (*clk->cb)(clk->opaque, freq);
  14 }
  15
  16 struct ppc_tb_t {
  17     /* Time base management */
  18     int64_t  tb_offset;    /* Compensation                    */
  19     int64_t  atb_offset;   /* Compensation                    */
  20     uint32_t tb_freq;      /* TB frequency                    */
  21     /* Decrementer management */
  22     uint64_t decr_next;    /* Tick for next decr interrupt    */
  23     uint32_t decr_freq;    /* decrementer frequency           */
  24     struct QEMUTimer *decr_timer;
  25     /* Hypervisor decrementer management */
  26     uint64_t hdecr_next;    /* Tick for next hdecr interrupt  */
  27     struct QEMUTimer *hdecr_timer;
  28     uint64_t purr_load;
  29     uint64_t purr_start;
  30     void *opaque;
  31     uint32_t flags;
  32 };
  33
  34 /* PPC Timers flags */
  35 #define PPC_TIMER_BOOKE              (1 << 0) /* Enable Booke support */
  36 #define PPC_TIMER_E500               (1 << 1) /* Enable e500 support */
  37 #define PPC_DECR_UNDERFLOW_TRIGGERED (1 << 2) /* Decr interrupt triggered when
  38                                                * the most significant bit
  39                                                * changes from 0 to 1.
  40                                                */
  41 #define PPC_DECR_ZERO_TRIGGERED      (1 << 3) /* Decr interrupt triggered when
  42                                                * the decrementer reaches zero.
  43                                                */
  44
  45 uint64_t cpu_ppc_get_tb(ppc_tb_t *tb_env, uint64_t vmclk, int64_t tb_offset);
  46 clk_setup_cb cpu_ppc_tb_init (CPUState *env, uint32_t freq);
  47 /* Embedded PowerPC DCR management */
  48 typedef uint32_t (*dcr_read_cb)(void *opaque, int dcrn);
  49 typedef void (*dcr_write_cb)(void *opaque, int dcrn, uint32_t val);
  50 int ppc_dcr_init (CPUState *env, int (*dcr_read_error)(int dcrn),
  51                   int (*dcr_write_error)(int dcrn));
  52 int ppc_dcr_register (CPUState *env, int dcrn, void *opaque,
  53                       dcr_read_cb drc_read, dcr_write_cb dcr_write);
  54 clk_setup_cb ppc_40x_timers_init (CPUState *env, uint32_t freq,
  55                                   unsigned int decr_excp);
  56
  57 /* Embedded PowerPC reset */
  58 void ppc40x_core_reset (CPUState *env);
  59 void ppc40x_chip_reset (CPUState *env);
  60 void ppc40x_system_reset (CPUState *env);
  61 void PREP_debug_write (void *opaque, uint32_t addr, uint32_t val);
  62
  63 extern CPUWriteMemoryFunc * const PPC_io_write[];
  64 extern CPUReadMemoryFunc * const PPC_io_read[];
  65 void PPC_debug_write (void *opaque, uint32_t addr, uint32_t val);
  66
  67 void ppc40x_irq_init (CPUState *env);
  68 void ppce500_irq_init (CPUState *env);
  69 void ppc6xx_irq_init (CPUState *env);
  70 void ppc970_irq_init (CPUState *env);
  71 void ppcPOWER7_irq_init (CPUState *env);
  72
  73 /* PPC machines for OpenBIOS */
  74 enum {
  75     ARCH_PREP = 0,
  76     ARCH_MAC99,
  77     ARCH_HEATHROW,
  78     ARCH_MAC99_U3,
  79 };
  80
  81 #define FW_CFG_PPC_WIDTH        (FW_CFG_ARCH_LOCAL + 0x00)
  82 #define FW_CFG_PPC_HEIGHT       (FW_CFG_ARCH_LOCAL + 0x01)
  83 #define FW_CFG_PPC_DEPTH        (FW_CFG_ARCH_LOCAL + 0x02)
  84 #define FW_CFG_PPC_TBFREQ       (FW_CFG_ARCH_LOCAL + 0x03)
  85 #define FW_CFG_PPC_IS_KVM       (FW_CFG_ARCH_LOCAL + 0x05)
  86 #define FW_CFG_PPC_KVM_HC       (FW_CFG_ARCH_LOCAL + 0x06)
  87 #define FW_CFG_PPC_KVM_PID      (FW_CFG_ARCH_LOCAL + 0x07)
  88
  89 #define PPC_SERIAL_MM_BAUDBASE 399193
  90
  91 /* ppc_booke.c */
  92 void ppc_booke_timers_init(CPUState *env, uint32_t freq, uint32_t flags);