#define AUX_PC_REG 0x6
#define AUX_STATUS32_REG 0xA
+
#define SET_CORE_FORCE_HALT BIT(1)
#define SET_CORE_HALT_BIT BIT(0) /* STATUS32[0] = H field */
-#define SET_CORE_ENABLE_INTERRUPTS BIT(31)
+#define SET_CORE_ENABLE_INTERRUPTS BIT(31)
+/* STATUS32[5] or AE bit indicates if the processor is in exception state */
+#define SET_CORE_AE_BIT BIT(5)
+/* Single instruction step bit in Debug register */
+#define SET_CORE_SINGLE_INSTR_STEP BIT(11)
#define AUX_STATUS32_REG_HALT_BIT BIT(0)
#define AUX_STATUS32_REG_IE_BIT BIT(31) /* STATUS32[31] = IE field */
-/* Reserved core registers */
-#define CORE_R61_NUM (61)
-#define CORE_R62_NUM (62)
+/* ARC register numbers */
+enum {
+ ARC_R0,
+ ARC_R1,
+ ARC_R2,
+ ARC_R3,
+ ARC_R4,
+ ARC_R5,
+ ARC_R6,
+ ARC_R7,
+ ARC_R8,
+ ARC_R9,
+ ARC_R10,
+ ARC_R11,
+ ARC_R12,
+ ARC_R13,
+ ARC_R14,
+ ARC_R15,
+ ARC_R16,
+ ARC_R17,
+ ARC_R18,
+ ARC_R19,
+ ARC_R20,
+ ARC_R21,
+ ARC_R22,
+ ARC_R23,
+ ARC_R24,
+ ARC_R25,
+ ARC_GP = 26,
+ ARC_FP = 27,
+ ARC_SP = 28,
+ ARC_ILINK = 29,
+ ARC_R30,
+ ARC_BLINK = 31,
+ ARC_LP_COUNT = 60,
+
+ /* Reserved registers */
+ ARC_R61 = 61,
+ ARC_R62 = 62,
+
+ ARC_PCL = 63,
+ ARC_PC = 64,
+ ARC_LP_START = 65,
+ ARC_LP_END = 66,
+ ARC_STATUS32 = 67,
+};
#define CORE_REG_MAX_NUMBER (63)
/* Limit reg_type/reg_type_field name to 20 symbols */
#define REG_TYPE_MAX_NAME_LENGTH 20
+/* ARC 32bits opcodes */
+#define ARC_SDBBP_32 0x256F003FU /* BRK */
+
+/* ARC 16bits opcodes */
+#define ARC_SDBBP_16 0x7FFF /* BRK_S */
+
+/* Cache registers */
+#define AUX_IC_IVIC_REG 0X10
+#define IC_IVIC_INVALIDATE 0XFFFFFFFF
+
+#define AUX_DC_IVDC_REG 0X47
+#define DC_IVDC_INVALIDATE BIT(0)
+#define AUX_DC_CTRL_REG 0X48
+#define DC_CTRL_IM BIT(6)
+
+/* L2 cache registers */
+#define SLC_AUX_CACHE_CTRL 0x903
+#define L2_CTRL_IM BIT(6)
+#define L2_CTRL_BS BIT(8) /* Busy flag */
+#define SLC_AUX_CACHE_FLUSH 0x904
+#define L2_FLUSH_FL BIT(0)
+#define SLC_AUX_CACHE_INV 0x905
+#define L2_INV_IV BIT(0)
+
+ /* Action Point */
+#define AP_AC_AT_INST_ADDR 0x0
+#define AP_AC_AT_MEMORY_ADDR 0x2
+#define AP_AC_AT_AUXREG_ADDR 0x4
+
+#define AP_AC_TT_DISABLE 0x00
+#define AP_AC_TT_WRITE 0x10
+#define AP_AC_TT_READ 0x20
+#define AP_AC_TT_READWRITE 0x30
+
struct arc_reg_bitfield {
struct reg_data_type_bitfield bitfield;
char name[REG_TYPE_MAX_NAME_LENGTH];
};
};
-
-
/* Standard GDB register types */
static const struct reg_data_type standard_gdb_types[] = {
{ .type = REG_TYPE_INT, .id = "int" },
{ .type = REG_TYPE_IEEE_DOUBLE, .id = "ieee_double" },
};
+enum arc_actionpointype {
+ ARC_AP_BREAKPOINT,
+ ARC_AP_WATCHPOINT,
+};
+
+/* Actionpoint related fields */
+struct arc_actionpoint {
+ int used;
+ uint32_t bp_value;
+ uint32_t reg_address;
+ enum arc_actionpointype type;
+};
struct arc_common {
uint32_t common_magic;
struct reg_cache *core_and_aux_cache;
struct reg_cache *bcr_cache;
+ /* Cache control */
+ bool has_dcache;
+ bool has_icache;
+ bool has_l2cache;
+ /* If true, then D$ has been already flushed since core has been
+ * halted. */
+ bool dcache_flushed;
+ /* If true, then L2 has been already flushed since core has been
+ * halted. */
+ bool l2cache_flushed;
+ /* If true, then caches have been already flushed since core has been
+ * halted. */
+ bool icache_invalidated;
+ bool dcache_invalidated;
+ bool l2cache_invalidated;
+
/* Indicate if cach was built (for deinit function) */
bool core_aux_cache_built;
bool bcr_cache_built;
unsigned long pc_index_in_cache;
/* DEBUG register location in register cache. */
unsigned long debug_index_in_cache;
+
+ /* Actionpoints */
+ unsigned int actionpoints_num;
+ unsigned int actionpoints_num_avail;
+ struct arc_actionpoint *actionpoints_list;
};
/* Borrowed from nds32.h */
return target->arch_info;
}
+/* ----- Inlined functions ------------------------------------------------- */
+
+/**
+ * Convert data in host endianness to the middle endian. This is required to
+ * write 4-byte instructions.
+ */
+static inline void arc_h_u32_to_me(uint8_t *buf, int val)
+{
+ buf[1] = (uint8_t) (val >> 24);
+ buf[0] = (uint8_t) (val >> 16);
+ buf[3] = (uint8_t) (val >> 8);
+ buf[2] = (uint8_t) (val >> 0);
+}
+
+/**
+ * Convert data in middle endian to host endian. This is required to read 32-bit
+ * instruction from little endian ARCs.
+ */
+static inline uint32_t arc_me_to_h_u32(const uint8_t *buf)
+{
+ return (uint32_t)(buf[2] | buf[3] << 8 | buf[0] << 16 | buf[1] << 24);
+}
+
/* ARC Register description */
struct arc_reg_desc {
int arc_reg_get_field(struct target *target, const char *reg_name,
const char *field_name, uint32_t *value_ptr);
+int arc_cache_flush(struct target *target);
+int arc_cache_invalidate(struct target *target);
+
+int arc_add_auxreg_actionpoint(struct target *target,
+ uint32_t auxreg_addr, uint32_t transaction);
+int arc_remove_auxreg_actionpoint(struct target *target, uint32_t auxreg_addr);
+int arc_set_actionpoints_num(struct target *target, uint32_t ap_num);
+
#endif /* OPENOCD_TARGET_ARC_H */
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