X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Ftarget%2Farm_dpm.h;h=d35e9f68d6dfd61a01dde4275c281d5ac28969cf;hp=9cc0304a3dc44325bcb8a995b727c6cf8920e85e;hb=HEAD;hpb=84a0bb4a3c3c883b22f95abc7f1428faef3936f1 diff --git a/src/target/arm_dpm.h b/src/target/arm_dpm.h index 9cc0304a3d..2da4631112 100644 --- a/src/target/arm_dpm.h +++ b/src/target/arm_dpm.h @@ -1,18 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + /* * Copyright (C) 2009 by David Brownell - * - * 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 . */ #ifndef OPENOCD_TARGET_ARM_DPM_H @@ -59,41 +48,64 @@ struct arm_dpm { struct arm *arm; /** Cache of DIDR */ - uint32_t didr; + uint64_t didr; /** Invoke before a series of instruction operations */ - int (*prepare)(struct arm_dpm *); + int (*prepare)(struct arm_dpm *dpm); /** Invoke after a series of instruction operations */ - int (*finish)(struct arm_dpm *); + int (*finish)(struct arm_dpm *dpm); + + /** Runs one instruction. */ + int (*instr_execute)(struct arm_dpm *dpm, uint32_t opcode); /* WRITE TO CPU */ /** Runs one instruction, writing data to DCC before execution. */ - int (*instr_write_data_dcc)(struct arm_dpm *, + int (*instr_write_data_dcc)(struct arm_dpm *dpm, uint32_t opcode, uint32_t data); + int (*instr_write_data_dcc_64)(struct arm_dpm *dpm, + uint32_t opcode, uint64_t data); + /** Runs one instruction, writing data to R0 before execution. */ - int (*instr_write_data_r0)(struct arm_dpm *, + int (*instr_write_data_r0)(struct arm_dpm *dpm, uint32_t opcode, uint32_t data); + /** + * Runs two instructions, writing data to R0 and R1 before execution. + */ + int (*instr_write_data_r0_r1)(struct arm_dpm *dpm, + uint32_t opcode, uint64_t data); + + /** Runs one instruction, writing data to R0 before execution. */ + int (*instr_write_data_r0_64)(struct arm_dpm *dpm, + uint32_t opcode, uint64_t data); + /** Optional core-specific operation invoked after CPSR writes. */ int (*instr_cpsr_sync)(struct arm_dpm *dpm); /* READ FROM CPU */ /** Runs one instruction, reading data from dcc after execution. */ - int (*instr_read_data_dcc)(struct arm_dpm *, + int (*instr_read_data_dcc)(struct arm_dpm *dpm, uint32_t opcode, uint32_t *data); - int (*instr_read_data_dcc_64)(struct arm_dpm *, + int (*instr_read_data_dcc_64)(struct arm_dpm *dpm, uint32_t opcode, uint64_t *data); /** Runs one instruction, reading data from r0 after execution. */ - int (*instr_read_data_r0)(struct arm_dpm *, + int (*instr_read_data_r0)(struct arm_dpm *dpm, uint32_t opcode, uint32_t *data); - int (*instr_read_data_r0_64)(struct arm_dpm *, + /** + * Runs two instructions, reading data from r0 and r1 after + * execution. + */ + int (*instr_read_data_r0_r1)(struct arm_dpm *dpm, + uint32_t opcode, uint64_t *data); + + int (*instr_read_data_r0_64)(struct arm_dpm *dpm, uint32_t opcode, uint64_t *data); struct reg *(*arm_reg_current)(struct arm *arm, @@ -107,7 +119,7 @@ struct arm_dpm { * must currently be disabled. Indices 0..15 are used for * breakpoints; indices 16..31 are for watchpoints. */ - int (*bpwp_enable)(struct arm_dpm *, unsigned index_value, + int (*bpwp_enable)(struct arm_dpm *dpm, unsigned index_value, uint32_t addr, uint32_t control); /** @@ -115,7 +127,7 @@ struct arm_dpm { * hardware control registers. Indices are the same ones * accepted by bpwp_enable(). */ - int (*bpwp_disable)(struct arm_dpm *, unsigned index_value); + int (*bpwp_disable)(struct arm_dpm *dpm, unsigned index_value); /* The breakpoint and watchpoint arrays are private to the * DPM infrastructure. There are nbp indices in the dbp @@ -127,26 +139,32 @@ struct arm_dpm { struct dpm_bp *dbp; struct dpm_wp *dwp; - /** Address of the instruction which triggered a watchpoint. */ - uint32_t wp_pc; + /** + * Target dependent watchpoint address. + * Either the address of the instruction which triggered a watchpoint + * or the memory address whose access triggered a watchpoint. + */ + target_addr_t wp_addr; /** Recent value of DSCR. */ uint32_t dscr; + /** Recent exception level on armv8 */ + unsigned int last_el; + /* FIXME -- read/write DCSR methods and symbols */ }; int arm_dpm_setup(struct arm_dpm *dpm); int arm_dpm_initialize(struct arm_dpm *dpm); -int arm_dpm_read_current_registers(struct arm_dpm *); -int arm_dpm_read_current_registers_64(struct arm_dpm *); -int dpm_modeswitch(struct arm_dpm *dpm, enum arm_mode mode); - +int arm_dpm_read_reg(struct arm_dpm *dpm, struct reg *r, unsigned regnum); +int arm_dpm_read_current_registers(struct arm_dpm *dpm); +int arm_dpm_modeswitch(struct arm_dpm *dpm, enum arm_mode mode); -int arm_dpm_write_dirty_registers(struct arm_dpm *, bool bpwp); +int arm_dpm_write_dirty_registers(struct arm_dpm *dpm, bool bpwp); -void arm_dpm_report_wfar(struct arm_dpm *, uint32_t wfar); +void arm_dpm_report_wfar(struct arm_dpm *dpm, uint32_t wfar); /* DSCR bits; see ARMv7a arch spec section C10.3.1. * Not all v7 bits are valid in v6. @@ -176,21 +194,21 @@ void arm_dpm_report_wfar(struct arm_dpm *, uint32_t wfar); #define DSCR_DTR_TX_FULL (0x1 << 29) #define DSCR_DTR_RX_FULL (0x1 << 30) /* bit 31 is reserved */ -#define DSCR_ENTRY(dscr) (((dscr) >> 2) & 0xf) -#define DSCR_RUN_MODE(dscr) ((dscr) & (DSCR_CORE_HALTED | DSCR_CORE_RESTARTED)) +#define DSCR_ENTRY(dscr) ((dscr) & 0x3f) +#define DSCR_RUN_MODE(dscr) ((dscr) & 0x03) /* Methods of entry into debug mode */ -#define DSCR_ENTRY_HALT_REQ (0x0 << 2) -#define DSCR_ENTRY_BREAKPOINT (0x1 << 2) -#define DSCR_ENTRY_IMPRECISE_WATCHPT (0x2 << 2) -#define DSCR_ENTRY_BKPT_INSTR (0x3 << 2) -#define DSCR_ENTRY_EXT_DBG_REQ (0x4 << 2) -#define DSCR_ENTRY_VECT_CATCH (0x5 << 2) -#define DSCR_ENTRY_D_SIDE_ABORT (0x6 << 2) /* v6 only */ -#define DSCR_ENTRY_I_SIDE_ABORT (0x7 << 2) /* v6 only */ -#define DSCR_ENTRY_OS_UNLOCK (0x8 << 2) -#define DSCR_ENTRY_PRECISE_WATCHPT (0xA << 2) +#define DSCR_ENTRY_HALT_REQ (0x03) +#define DSCR_ENTRY_BREAKPOINT (0x07) +#define DSCR_ENTRY_IMPRECISE_WATCHPT (0x0B) +#define DSCR_ENTRY_BKPT_INSTR (0x0F) +#define DSCR_ENTRY_EXT_DBG_REQ (0x13) +#define DSCR_ENTRY_VECT_CATCH (0x17) +#define DSCR_ENTRY_D_SIDE_ABORT (0x1B) /* v6 only */ +#define DSCR_ENTRY_I_SIDE_ABORT (0x1F) /* v6 only */ +#define DSCR_ENTRY_OS_UNLOCK (0x23) +#define DSCR_ENTRY_PRECISE_WATCHPT (0x2B) /* DTR modes */ #define DSCR_EXT_DCC_NON_BLOCKING (0x0 << 20) @@ -225,7 +243,7 @@ void arm_dpm_report_dscr(struct arm_dpm *dpm, uint32_t dcsr); /* OSLSR (OS Lock Status Register) bits */ #define OSLSR_OSLM0 (1 << 0) #define OSLSR_OSLK (1 << 1) -#define OSLSR_nTT (1 << 2) +#define OSLSR_NTT (1 << 2) #define OSLSR_OSLM1 (1 << 3) #define OSLSR_OSLM (OSLSR_OSLM0|OSLSR_OSLM1)