hw/ppc.h

   1 #ifndef HW_PPC_H
   2 #define HW_PPC_H 1
   3
   4 void ppc_set_irq (CPUPPCState *env, int n_IRQ, int level);
   5
   6 /* PowerPC hardware exceptions management helpers */
   7 typedef void (*clk_setup_cb)(void *opaque, uint32_t freq);
   8 typedef struct clk_setup_t clk_setup_t;
   9 struct clk_setup_t {
  10     clk_setup_cb cb;
  11     void *opaque;
  12 };
  13 static inline void clk_setup (clk_setup_t *clk, uint32_t freq)
  14 {
  15     if (clk->cb != NULL)
  16         (*clk->cb)(clk->opaque, freq);
  17 }
  18
  19 struct ppc_tb_t {
  20     /* Time base management */
  21     int64_t  tb_offset;    /* Compensation                    */
  22     int64_t  atb_offset;   /* Compensation                    */
  23     uint32_t tb_freq;      /* TB frequency                    */
  24     /* Decrementer management */
  25     uint64_t decr_next;    /* Tick for next decr interrupt    */
  26     uint32_t decr_freq;    /* decrementer frequency           */
  27     struct QEMUTimer *decr_timer;
  28     /* Hypervisor decrementer management */
  29     uint64_t hdecr_next;    /* Tick for next hdecr interrupt  */
  30     struct QEMUTimer *hdecr_timer;
  31     uint64_t purr_load;
  32     uint64_t purr_start;
  33     void *opaque;
  34     uint32_t flags;
  35 };
  36
  37 /* PPC Timers flags */
  38 #define PPC_TIMER_BOOKE              (1 << 0) /* Enable Booke support */
  39 #define PPC_TIMER_E500               (1 << 1) /* Enable e500 support */
  40 #define PPC_DECR_UNDERFLOW_TRIGGERED (1 << 2) /* Decr interrupt triggered when
  41                                                * the most significant bit
  42                                                * changes from 0 to 1.
  43                                                */
  44 #define PPC_DECR_ZERO_TRIGGERED      (1 << 3) /* Decr interrupt triggered when
  45                                                * the decrementer reaches zero.
  46                                                */
  47
  48 uint64_t cpu_ppc_get_tb(ppc_tb_t *tb_env, uint64_t vmclk, int64_t tb_offset);
  49 clk_setup_cb cpu_ppc_tb_init (CPUPPCState *env, uint32_t freq);
  50 /* Embedded PowerPC DCR management */
  51 typedef uint32_t (*dcr_read_cb)(void *opaque, int dcrn);
  52 typedef void (*dcr_write_cb)(void *opaque, int dcrn, uint32_t val);
  53 int ppc_dcr_init (CPUPPCState *env, int (*dcr_read_error)(int dcrn),
  54                   int (*dcr_write_error)(int dcrn));
  55 int ppc_dcr_register (CPUPPCState *env, int dcrn, void *opaque,
  56                       dcr_read_cb drc_read, dcr_write_cb dcr_write);
  57 clk_setup_cb ppc_40x_timers_init (CPUPPCState *env, uint32_t freq,
  58                                   unsigned int decr_excp);
  59
  60 /* Embedded PowerPC reset */
  61 void ppc40x_core_reset (CPUPPCState *env);
  62 void ppc40x_chip_reset (CPUPPCState *env);
  63 void ppc40x_system_reset (CPUPPCState *env);
  64 void PREP_debug_write (void *opaque, uint32_t addr, uint32_t val);
  65
  66 extern CPUWriteMemoryFunc * const PPC_io_write[];
  67 extern CPUReadMemoryFunc * const PPC_io_read[];
  68 void PPC_debug_write (void *opaque, uint32_t addr, uint32_t val);
  69
  70 void ppc40x_irq_init (CPUPPCState *env);
  71 void ppce500_irq_init (CPUPPCState *env);
  72 void ppc6xx_irq_init (CPUPPCState *env);
  73 void ppc970_irq_init (CPUPPCState *env);
  74 void ppcPOWER7_irq_init (CPUPPCState *env);
  75
  76 /* PPC machines for OpenBIOS */
  77 enum {
  78     ARCH_PREP = 0,
  79     ARCH_MAC99,
  80     ARCH_HEATHROW,
  81     ARCH_MAC99_U3,
  82 };
  83
  84 #define FW_CFG_PPC_WIDTH        (FW_CFG_ARCH_LOCAL + 0x00)
  85 #define FW_CFG_PPC_HEIGHT       (FW_CFG_ARCH_LOCAL + 0x01)
  86 #define FW_CFG_PPC_DEPTH        (FW_CFG_ARCH_LOCAL + 0x02)
  87 #define FW_CFG_PPC_TBFREQ       (FW_CFG_ARCH_LOCAL + 0x03)
  88 #define FW_CFG_PPC_IS_KVM       (FW_CFG_ARCH_LOCAL + 0x05)
  89 #define FW_CFG_PPC_KVM_HC       (FW_CFG_ARCH_LOCAL + 0x06)
  90 #define FW_CFG_PPC_KVM_PID      (FW_CFG_ARCH_LOCAL + 0x07)
  91
  92 #define PPC_SERIAL_MM_BAUDBASE 399193
  93
  94 /* ppc_booke.c */
  95 void ppc_booke_timers_init(CPUPPCState *env, uint32_t freq, uint32_t flags);
  96
  97 #endif