X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Ftarget%2Farmv7m.h;h=575912fc9a136894a0e8f0054e8974f6b2415a9b;hp=35afe11f7efe934abd50025518b8d7503248b393;hb=e483959a29db57a10d9add32e2ccda9023047b8c;hpb=1de959ca1c9e67ef57f77ec2d7a1132b73153abb diff --git a/src/target/armv7m.h b/src/target/armv7m.h index 35afe11f7e..575912fc9a 100644 --- a/src/target/armv7m.h +++ b/src/target/armv7m.h @@ -21,196 +21,206 @@ * You should have received a copy of the GNU General Public License * * along with this program; if not, write to the * * Free Software Foundation, Inc., * - * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * ***************************************************************************/ + #ifndef ARMV7M_COMMON_H #define ARMV7M_COMMON_H -#include "register.h" -#include "target.h" -#include "arm_jtag.h" #include "arm_adi_v5.h" +#include "arm.h" -/* define for enabling armv7 gdb workarounds */ -#if 1 -#define ARMV7_GDB_HACKS -#endif - -enum armv7m_mode -{ - ARMV7M_MODE_THREAD = 0, - ARMV7M_MODE_USER_THREAD = 1, - ARMV7M_MODE_HANDLER = 2, - ARMV7M_MODE_ANY = -1 -}; +extern const int armv7m_psp_reg_map[]; +extern const int armv7m_msp_reg_map[]; -extern char* armv7m_mode_strings[]; - -enum armv7m_regtype -{ - ARMV7M_REGISTER_CORE_GP, - ARMV7M_REGISTER_CORE_SP, - ARMV7M_REGISTER_MEMMAP -}; - -extern char* armv7m_exception_strings[]; - -extern char *armv7m_exception_string(int number); +char *armv7m_exception_string(int number); /* offsets into armv7m core register cache */ -enum -{ +enum { + /* for convenience, the first set of indices match + * the Cortex-M3/-M4 DCRSR selectors + */ + ARMV7M_R0, + ARMV7M_R1, + ARMV7M_R2, + ARMV7M_R3, + + ARMV7M_R4, + ARMV7M_R5, + ARMV7M_R6, + ARMV7M_R7, + + ARMV7M_R8, + ARMV7M_R9, + ARMV7M_R10, + ARMV7M_R11, + + ARMV7M_R12, + ARMV7M_R13, + ARMV7M_R14, ARMV7M_PC = 15, + ARMV7M_xPSR = 16, ARMV7M_MSP, ARMV7M_PSP, + + /* this next set of indices is arbitrary */ ARMV7M_PRIMASK, ARMV7M_BASEPRI, ARMV7M_FAULTMASK, ARMV7M_CONTROL, - ARMV7NUMCOREREGS + + /* 32bit Floating-point registers */ + ARMV7M_S0, + ARMV7M_S1, + ARMV7M_S2, + ARMV7M_S3, + ARMV7M_S4, + ARMV7M_S5, + ARMV7M_S6, + ARMV7M_S7, + ARMV7M_S8, + ARMV7M_S9, + ARMV7M_S10, + ARMV7M_S11, + ARMV7M_S12, + ARMV7M_S13, + ARMV7M_S14, + ARMV7M_S15, + ARMV7M_S16, + ARMV7M_S17, + ARMV7M_S18, + ARMV7M_S19, + ARMV7M_S20, + ARMV7M_S21, + ARMV7M_S22, + ARMV7M_S23, + ARMV7M_S24, + ARMV7M_S25, + ARMV7M_S26, + ARMV7M_S27, + ARMV7M_S28, + ARMV7M_S29, + ARMV7M_S30, + ARMV7M_S31, + + /* 64bit Floating-point registers */ + ARMV7M_D0, + ARMV7M_D1, + ARMV7M_D2, + ARMV7M_D3, + ARMV7M_D4, + ARMV7M_D5, + ARMV7M_D6, + ARMV7M_D7, + ARMV7M_D8, + ARMV7M_D9, + ARMV7M_D10, + ARMV7M_D11, + ARMV7M_D12, + ARMV7M_D13, + ARMV7M_D14, + ARMV7M_D15, + + /* Floating-point status registers */ + ARMV7M_FPSID, + ARMV7M_FPSCR, + ARMV7M_FPEXC, + + ARMV7M_LAST_REG, }; +enum { + FP_NONE = 0, + FPv4_SP, +}; + +#define ARMV7M_NUM_CORE_REGS (ARMV7M_xPSR + 1) + #define ARMV7M_COMMON_MAGIC 0x2A452A45 -typedef struct armv7m_common_s -{ +struct armv7m_common { + struct arm arm; + int common_magic; - reg_cache_t *core_cache; - enum armv7m_mode core_mode; int exception_number; - swjdp_common_t swjdp_info; + struct adiv5_dap dap; + + int fp_feature; + uint32_t demcr; + + /* stlink is a high level adapter, does not support all functions */ + bool stlink; - /* Direct processor core register read and writes */ - int (*load_core_reg_u32)(struct target_s *target, enum armv7m_regtype type, u32 num, u32 *value); - int (*store_core_reg_u32)(struct target_s *target, enum armv7m_regtype type, u32 num, u32 value); - /* register cache to processor synchronization */ - int (*read_core_reg)(struct target_s *target, int num); - int (*write_core_reg)(struct target_s *target, int num); - - int (*examine_debug_reason)(target_t *target); - void (*pre_debug_entry)(target_t *target); - void (*post_debug_entry)(target_t *target); - - void (*pre_restore_context)(target_t *target); - void (*post_restore_context)(target_t *target); - - void *arch_info; -} armv7m_common_t; - -typedef struct armv7m_algorithm_s + int (*load_core_reg_u32)(struct target *target, uint32_t num, uint32_t *value); + int (*store_core_reg_u32)(struct target *target, uint32_t num, uint32_t value); + + int (*examine_debug_reason)(struct target *target); + int (*post_debug_entry)(struct target *target); + + void (*pre_restore_context)(struct target *target); +}; + +static inline struct armv7m_common * +target_to_armv7m(struct target *target) { - int common_magic; - - enum armv7m_mode core_mode; -} armv7m_algorithm_t; + return container_of(target->arch_info, struct armv7m_common, arm); +} -typedef struct armv7m_core_reg_s +static inline bool is_armv7m(struct armv7m_common *armv7m) { - u32 num; - enum armv7m_regtype type; - enum armv7m_mode mode; - target_t *target; - armv7m_common_t *armv7m_common; -} armv7m_core_reg_t; - -extern reg_cache_t *armv7m_build_reg_cache(target_t *target); -extern enum armv7m_mode armv7m_number_to_mode(int number); -extern int armv7m_mode_to_number(enum armv7m_mode mode); - -extern int armv7m_arch_state(struct target_s *target); -extern int armv7m_get_gdb_reg_list(target_t *target, reg_t **reg_list[], int *reg_list_size); - -extern int armv7m_register_commands(struct command_context_s *cmd_ctx); -extern int armv7m_init_arch_info(target_t *target, armv7m_common_t *armv7m); - -extern int armv7m_run_algorithm(struct target_s *target, int num_mem_params, mem_param_t *mem_params, int num_reg_params, reg_param_t *reg_params, u32 entry_point, u32 exit_point, int timeout_ms, void *arch_info); - -extern int armv7m_invalidate_core_regs(target_t *target); - -extern int armv7m_restore_context(target_t *target); - -extern int armv7m_checksum_memory(struct target_s *target, u32 address, u32 count, u32* checksum); -extern int armv7m_blank_check_memory(struct target_s *target, u32 address, u32 count, u32* blank); - -/* Thumb mode instructions - */ - -/* Move to Register from Special Register (Thumb mode) 32 bit Thumb2 instruction - * Rd: destination register - * SYSm: source special register - */ -#define ARMV7M_T_MRS(Rd, SYSm) ((0xF3EF) | ((0x8000 | (Rd<<8) | SYSm) << 16)) - -/* Move from Register from Special Register (Thumb mode) 32 bit Thumb2 instruction - * Rd: source register - * SYSm: destination special register - */ -#define ARMV7M_T_MSR(SYSm, Rn) ((0xF380 | ( Rn<<8 )) | ((0x8800 | SYSm) << 16)) - -/* Change Processor State. The instruction modifies the PRIMASK and FAULTMASK - * special-purpose register values (Thumb mode) 16 bit Thumb2 instruction - * Rd: source register - * IF: - */ -#define I_FLAG 2 -#define F_FLAG 1 -#define ARMV7M_T_CPSID(IF) ((0xB660 | (1<<8) | (IF&0x3)) | ((0xB660 | (1<<8) | (IF&0x3)) << 16)) -#define ARMV7M_T_CPSIE(IF) ((0xB660 | (0<<8) | (IF&0x3)) | ((0xB660 | (0<<8) | (IF&0x3)) << 16)) - -/* Breakpoint (Thumb mode) v5 onwards - * Im: immediate value used by debugger - */ -#define ARMV7M_T_BKPT(Im) ((0xBE00 | Im ) | ((0xBE00 | Im ) << 16)) - -/* Store register (Thumb mode) - * Rd: source register - * Rn: base register - */ -#define ARMV7M_T_STR(Rd, Rn) ((0x6000 | Rd | (Rn << 3)) | ((0x6000 | Rd | (Rn << 3)) << 16)) - -/* Load register (Thumb state) - * Rd: destination register - * Rn: base register - */ -#define ARMV7M_T_LDR(Rd, Rn) ((0x6800 | (Rn << 3) | Rd) | ((0x6800 | (Rn << 3) | Rd) << 16)) - -/* Load multiple (Thumb state) - * Rn: base register - * List: for each bit in list: store register - */ -#define ARMV7M_T_LDMIA(Rn, List) ((0xc800 | (Rn << 8) | List) | ((0xc800 | (Rn << 8) | List) << 16)) - -/* Load register with PC relative addressing - * Rd: register to load - */ -#define ARMV7M_T_LDR_PCREL(Rd) ((0x4800 | (Rd << 8)) | ((0x4800 | (Rd << 8)) << 16)) - -/* Move hi register (Thumb mode) - * Rd: destination register - * Rm: source register - */ -#define ARMV7M_T_MOV(Rd, Rm) ((0x4600 | (Rd & 0x7) | ((Rd & 0x8) << 4) | ((Rm & 0x7) << 3) | ((Rm & 0x8) << 3)) | ((0x4600 | (Rd & 0x7) | ((Rd & 0x8) << 4) | ((Rm & 0x7) << 3) | ((Rm & 0x8) << 3)) << 16)) - -/* No operation (Thumb mode) - */ -#define ARMV7M_T_NOP (0x46c0 | (0x46c0 << 16)) - -/* Move immediate to register (Thumb state) - * Rd: destination register - * Im: 8-bit immediate value - */ -#define ARMV7M_T_MOV_IM(Rd, Im) ((0x2000 | (Rd << 8) | Im) | ((0x2000 | (Rd << 8) | Im) << 16)) - -/* Branch and Exchange - * Rm: register containing branch target - */ -#define ARMV7M_T_BX(Rm) ((0x4700 | (Rm << 3)) | ((0x4700 | (Rm << 3)) << 16)) - -/* Branch (Thumb state) - * Imm: Branch target - */ -#define ARMV7M_T_B(Imm) ((0xe000 | Imm) | ((0xe000 | Imm) << 16)) + return armv7m->common_magic == ARMV7M_COMMON_MAGIC; +} + +struct armv7m_algorithm { + int common_magic; + + enum arm_mode core_mode; + + uint32_t context[ARMV7M_LAST_REG]; /* ARMV7M_NUM_REGS */ +}; + +struct reg_cache *armv7m_build_reg_cache(struct target *target); +enum armv7m_mode armv7m_number_to_mode(int number); +int armv7m_mode_to_number(enum armv7m_mode mode); + +int armv7m_arch_state(struct target *target); +int armv7m_get_gdb_reg_list(struct target *target, + struct reg **reg_list[], int *reg_list_size, + enum target_register_class reg_class); + +int armv7m_init_arch_info(struct target *target, struct armv7m_common *armv7m); + +int armv7m_run_algorithm(struct target *target, + int num_mem_params, struct mem_param *mem_params, + int num_reg_params, struct reg_param *reg_params, + uint32_t entry_point, uint32_t exit_point, + int timeout_ms, void *arch_info); + +int armv7m_start_algorithm(struct target *target, + int num_mem_params, struct mem_param *mem_params, + int num_reg_params, struct reg_param *reg_params, + uint32_t entry_point, uint32_t exit_point, + void *arch_info); + +int armv7m_wait_algorithm(struct target *target, + int num_mem_params, struct mem_param *mem_params, + int num_reg_params, struct reg_param *reg_params, + uint32_t exit_point, int timeout_ms, + void *arch_info); + +int armv7m_invalidate_core_regs(struct target *target); + +int armv7m_restore_context(struct target *target); + +int armv7m_checksum_memory(struct target *target, + uint32_t address, uint32_t count, uint32_t *checksum); +int armv7m_blank_check_memory(struct target *target, + uint32_t address, uint32_t count, uint32_t *blank); + +int armv7m_maybe_skip_bkpt_inst(struct target *target, bool *inst_found); + +extern const struct command_registration armv7m_command_handlers[]; #endif /* ARMV7M_H */