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openocd/src/target/armv7m.h
Tomas Vanek eb8912ec38 target, flash: prepare infrastructure for multi-block blank check 
'flash erase_check' command runs a check algorithm on a target
if possible. The algorithm is run repeatedly for each flash sector.
Unfortunately every start and stop of the algorithm impose not negligible
overhead.
In practice it means checking is faster than plain read only for
sectors of size approx 4 kByte or bigger. And checking sectors
as short as 512 bytes runs approx 4 times slower than plain read.

The patch changes API call target_blank_check_memory() and related
to take an array of sectors (or arbitrary memory blocks).

Changes in target-specific checking routines are kept minimal.
They use only the first block from the array and process it by
the unchanged algorithm.

default_flash_blank_check() routine repeats target_blank_check_memory()
until all blocks are checked, so it works with both multi-block
and single-block based checkers.

Change-Id: I0e6c60f2d71364c9c07c09416b04de9268807f5e
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/4297
Tested-by: jenkins
Reviewed-by: Andreas Bolsch <hyphen0break@gmail.com>
2018-04-10 06:16:40 +01:00

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/***************************************************************************
* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* Copyright (C) 2006 by Magnus Lundin *
* lundin@mlu.mine.nu *
* *
* 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, see <http://www.gnu.org/licenses/>. *
***************************************************************************/
#ifndef OPENOCD_TARGET_ARMV7M_H
#define OPENOCD_TARGET_ARMV7M_H
#include "arm_adi_v5.h"
#include "arm.h"
#include "armv7m_trace.h"
extern const int armv7m_psp_reg_map[];
extern const int armv7m_msp_reg_map[];
const char *armv7m_exception_string(int number);
/* offsets into armv7m core register cache */
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,
/* 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,
FPv5_SP,
FPv5_DP,
};
#define ARMV7M_NUM_CORE_REGS (ARMV7M_xPSR + 1)
#define ARMV7M_NUM_CORE_REGS_NOFP (ARMV7M_NUM_CORE_REGS + 6)
#define ARMV7M_COMMON_MAGIC 0x2A452A45
struct armv7m_common {
struct arm arm;
int common_magic;
int exception_number;
/* 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;
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 (*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)
{
return container_of(target->arch_info, struct armv7m_common, arm);
}
static inline bool is_armv7m(const struct armv7m_common *armv7m)
{
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);
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,
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,
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,
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,
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);
int armv7m_checksum_memory(struct target *target,
target_addr_t address, uint32_t count, uint32_t *checksum);
int armv7m_blank_check_memory(struct target *target,
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 /* OPENOCD_TARGET_ARMV7M_H */
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