+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
/***************************************************************************
* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* Copyright (C) 2008 by Spencer Oliver *
* spen@spen-soft.co.uk *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * 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., *
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
***************************************************************************/
-#ifndef ARMV7M_COMMON_H
-#define ARMV7M_COMMON_H
+#ifndef OPENOCD_TARGET_ARMV7M_H
+#define OPENOCD_TARGET_ARMV7M_H
-#include "arm_adi_v5.h"
#include "arm.h"
+#include "armv7m_trace.h"
-/* define for enabling armv7 gdb workarounds */
-#if 1
-#define ARMV7_GDB_HACKS
-#endif
-
-#ifdef ARMV7_GDB_HACKS
-extern uint8_t armv7m_gdb_dummy_cpsr_value[];
-extern struct reg armv7m_gdb_dummy_cpsr_reg;
-#endif
+struct adiv5_ap;
extern const int armv7m_psp_reg_map[];
extern const int armv7m_msp_reg_map[];
-char *armv7m_exception_string(int number);
+const char *armv7m_exception_string(int number);
+
+/* Cortex-M DCRSR.REGSEL selectors */
+enum {
+ ARMV7M_REGSEL_R0,
+ ARMV7M_REGSEL_R1,
+ ARMV7M_REGSEL_R2,
+ ARMV7M_REGSEL_R3,
+
+ ARMV7M_REGSEL_R4,
+ ARMV7M_REGSEL_R5,
+ ARMV7M_REGSEL_R6,
+ ARMV7M_REGSEL_R7,
+
+ ARMV7M_REGSEL_R8,
+ ARMV7M_REGSEL_R9,
+ ARMV7M_REGSEL_R10,
+ ARMV7M_REGSEL_R11,
+
+ ARMV7M_REGSEL_R12,
+ ARMV7M_REGSEL_R13,
+ ARMV7M_REGSEL_R14,
+ ARMV7M_REGSEL_PC = 15,
+
+ ARMV7M_REGSEL_XPSR = 16,
+ ARMV7M_REGSEL_MSP,
+ ARMV7M_REGSEL_PSP,
+
+ ARMV8M_REGSEL_MSP_NS = 0x18,
+ ARMV8M_REGSEL_PSP_NS,
+ ARMV8M_REGSEL_MSP_S,
+ ARMV8M_REGSEL_PSP_S,
+ ARMV8M_REGSEL_MSPLIM_S,
+ ARMV8M_REGSEL_PSPLIM_S,
+ ARMV8M_REGSEL_MSPLIM_NS,
+ ARMV8M_REGSEL_PSPLIM_NS,
+
+ ARMV7M_REGSEL_PMSK_BPRI_FLTMSK_CTRL = 0x14,
+ ARMV8M_REGSEL_PMSK_BPRI_FLTMSK_CTRL_S = 0x22,
+ ARMV8M_REGSEL_PMSK_BPRI_FLTMSK_CTRL_NS = 0x23,
+ ARMV7M_REGSEL_FPSCR = 0x21,
+
+ /* 32bit Floating-point registers */
+ ARMV7M_REGSEL_S0 = 0x40,
+ ARMV7M_REGSEL_S1,
+ ARMV7M_REGSEL_S2,
+ ARMV7M_REGSEL_S3,
+ ARMV7M_REGSEL_S4,
+ ARMV7M_REGSEL_S5,
+ ARMV7M_REGSEL_S6,
+ ARMV7M_REGSEL_S7,
+ ARMV7M_REGSEL_S8,
+ ARMV7M_REGSEL_S9,
+ ARMV7M_REGSEL_S10,
+ ARMV7M_REGSEL_S11,
+ ARMV7M_REGSEL_S12,
+ ARMV7M_REGSEL_S13,
+ ARMV7M_REGSEL_S14,
+ ARMV7M_REGSEL_S15,
+ ARMV7M_REGSEL_S16,
+ ARMV7M_REGSEL_S17,
+ ARMV7M_REGSEL_S18,
+ ARMV7M_REGSEL_S19,
+ ARMV7M_REGSEL_S20,
+ ARMV7M_REGSEL_S21,
+ ARMV7M_REGSEL_S22,
+ ARMV7M_REGSEL_S23,
+ ARMV7M_REGSEL_S24,
+ ARMV7M_REGSEL_S25,
+ ARMV7M_REGSEL_S26,
+ ARMV7M_REGSEL_S27,
+ ARMV7M_REGSEL_S28,
+ ARMV7M_REGSEL_S29,
+ ARMV7M_REGSEL_S30,
+ ARMV7M_REGSEL_S31,
+};
/* offsets into armv7m core register cache */
enum {
/* for convenience, the first set of indices match
- * the Cortex-M3/-M4 DCRSR selectors
+ * the Cortex-M DCRSR.REGSEL selectors
+ */
+ ARMV7M_R0 = ARMV7M_REGSEL_R0,
+ ARMV7M_R1 = ARMV7M_REGSEL_R1,
+ ARMV7M_R2 = ARMV7M_REGSEL_R2,
+ ARMV7M_R3 = ARMV7M_REGSEL_R3,
+
+ ARMV7M_R4 = ARMV7M_REGSEL_R4,
+ ARMV7M_R5 = ARMV7M_REGSEL_R5,
+ ARMV7M_R6 = ARMV7M_REGSEL_R6,
+ ARMV7M_R7 = ARMV7M_REGSEL_R7,
+
+ ARMV7M_R8 = ARMV7M_REGSEL_R8,
+ ARMV7M_R9 = ARMV7M_REGSEL_R9,
+ ARMV7M_R10 = ARMV7M_REGSEL_R10,
+ ARMV7M_R11 = ARMV7M_REGSEL_R11,
+
+ ARMV7M_R12 = ARMV7M_REGSEL_R12,
+ ARMV7M_R13 = ARMV7M_REGSEL_R13,
+ ARMV7M_R14 = ARMV7M_REGSEL_R14,
+ ARMV7M_PC = ARMV7M_REGSEL_PC,
+
+ ARMV7M_XPSR = ARMV7M_REGSEL_XPSR,
+ ARMV7M_MSP = ARMV7M_REGSEL_MSP,
+ ARMV7M_PSP = ARMV7M_REGSEL_PSP,
+
+ /* following indices are arbitrary, do not match DCRSR.REGSEL selectors */
+
+ /* A block of container and contained registers follows:
+ * THE ORDER IS IMPORTANT to the end of the block ! */
+ /* working register for packing/unpacking special regs, hidden from gdb */
+ ARMV7M_PMSK_BPRI_FLTMSK_CTRL,
+
+ /* WARNING: If you use armv7m_write_core_reg() on one of 4 following
+ * special registers, the new data go to ARMV7M_PMSK_BPRI_FLTMSK_CTRL
+ * cache only and are not flushed to CPU HW register.
+ * To trigger write to CPU HW register, add
+ * armv7m_write_core_reg(,,ARMV7M_PMSK_BPRI_FLTMSK_CTRL,);
*/
- 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,
-
- /* 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,
+ /* The end of block of container and contained registers */
+
+ /* ARMv8-M specific registers */
+ ARMV8M_MSP_NS,
+ ARMV8M_PSP_NS,
+ ARMV8M_MSP_S,
+ ARMV8M_PSP_S,
+ ARMV8M_MSPLIM_S,
+ ARMV8M_PSPLIM_S,
+ ARMV8M_MSPLIM_NS,
+ ARMV8M_PSPLIM_NS,
+
+ /* A block of container and contained registers follows:
+ * THE ORDER IS IMPORTANT to the end of the block ! */
+ ARMV8M_PMSK_BPRI_FLTMSK_CTRL_S,
+ ARMV8M_PRIMASK_S,
+ ARMV8M_BASEPRI_S,
+ ARMV8M_FAULTMASK_S,
+ ARMV8M_CONTROL_S,
+ /* The end of block of container and contained registers */
+
+ /* A block of container and contained registers follows:
+ * THE ORDER IS IMPORTANT to the end of the block ! */
+ ARMV8M_PMSK_BPRI_FLTMSK_CTRL_NS,
+ ARMV8M_PRIMASK_NS,
+ ARMV8M_BASEPRI_NS,
+ ARMV8M_FAULTMASK_NS,
+ ARMV8M_CONTROL_NS,
+ /* The end of block of container and contained registers */
/* 64bit Floating-point registers */
ARMV7M_D0,
ARMV7M_D14,
ARMV7M_D15,
- /* Floating-point status registers */
- ARMV7M_FPSID,
+ /* Floating-point status register */
ARMV7M_FPSCR,
- ARMV7M_FPEXC,
+ /* for convenience add registers' block delimiters */
ARMV7M_LAST_REG,
+ ARMV7M_CORE_FIRST_REG = ARMV7M_R0,
+ ARMV7M_CORE_LAST_REG = ARMV7M_XPSR,
+ ARMV7M_FPU_FIRST_REG = ARMV7M_D0,
+ ARMV7M_FPU_LAST_REG = ARMV7M_FPSCR,
+ ARMV8M_FIRST_REG = ARMV8M_MSP_NS,
+ ARMV8M_LAST_REG = ARMV8M_CONTROL_NS,
};
enum {
FP_NONE = 0,
- FPv4_SP,
+ FPV4_SP,
+ FPV5_SP,
+ FPV5_DP,
};
-#define ARMV7M_COMMON_MAGIC 0x2A452A45
+#define ARMV7M_NUM_CORE_REGS (ARMV7M_CORE_LAST_REG - ARMV7M_CORE_FIRST_REG + 1)
+
+#define ARMV7M_COMMON_MAGIC 0x2A452A45U
struct armv7m_common {
- struct arm arm;
+ unsigned int common_magic;
+
+ struct arm arm;
- int common_magic;
int exception_number;
- struct adiv5_dap dap;
+
+ /* AP this processor is connected to in the DAP */
+ struct adiv5_ap *debug_ap;
int fp_feature;
uint32_t demcr;
- /* stlink is a high level adapter, does not support all functions */
- bool stlink;
+ /* hla_target uses a high level adapter that does not support all functions */
+ bool is_hla_target;
+
+ struct armv7m_trace_config trace_config;
/* Direct processor core register read and writes */
- 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 (*load_core_reg_u32)(struct target *target, uint32_t regsel, uint32_t *value);
+ int (*store_core_reg_u32)(struct target *target, uint32_t regsel, 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 bool is_armv7m(const struct armv7m_common *armv7m)
+{
+ return armv7m->common_magic == ARMV7M_COMMON_MAGIC;
+}
+
+/**
+ * @returns the pointer to the target specific struct
+ * without matching a magic number.
+ * Use in target specific service routines, where the correct
+ * type of arch_info is certain.
+ */
static inline struct armv7m_common *
target_to_armv7m(struct target *target)
{
return container_of(target->arch_info, struct armv7m_common, arm);
}
-static inline bool is_armv7m(struct armv7m_common *armv7m)
+/**
+ * @returns the pointer to the target specific struct
+ * or NULL if the magic number does not match.
+ * Use in a flash driver or any place where mismatch of the arch_info
+ * type can happen.
+ */
+static inline struct armv7m_common *
+target_to_armv7m_safe(struct target *target)
{
- return armv7m->common_magic == ARMV7M_COMMON_MAGIC;
+ if (!target)
+ return NULL;
+
+ if (!target->arch_info)
+ return NULL;
+
+ /* Check the parent type first to prevent peeking memory too far
+ * from arch_info pointer */
+ if (!is_arm(target_to_arm(target)))
+ return NULL;
+
+ struct armv7m_common *armv7m = target_to_armv7m(target);
+ if (!is_armv7m(armv7m))
+ return NULL;
+
+ return armv7m;
}
struct armv7m_algorithm {
- int common_magic;
+ unsigned int common_magic;
enum arm_mode core_mode;
};
struct reg_cache *armv7m_build_reg_cache(struct target *target);
+void armv7m_free_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);
+ 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,
+ target_addr_t entry_point, target_addr_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,
+ target_addr_t entry_point, target_addr_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,
+ target_addr_t exit_point, int timeout_ms,
void *arch_info);
int armv7m_invalidate_core_regs(struct target *target);
int armv7m_restore_context(struct target *target);
+uint32_t armv7m_map_id_to_regsel(unsigned int arm_reg_id);
+
+bool armv7m_map_reg_packing(unsigned int arm_reg_id,
+ unsigned int *reg32_id, uint32_t *offset);
+
int armv7m_checksum_memory(struct target *target,
- uint32_t address, uint32_t count, uint32_t *checksum);
+ target_addr_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);
+ struct target_memory_check_block *blocks, int num_blocks, uint8_t erased_value);
int armv7m_maybe_skip_bkpt_inst(struct target *target, bool *inst_found);
extern const struct command_registration armv7m_command_handlers[];
-#endif /* ARMV7M_H */
+#endif /* OPENOCD_TARGET_ARMV7M_H */
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