* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
+
#ifndef ETM_H
#define ETM_H
#include "trace.h"
#include "arm_jtag.h"
-#include "armv4_5.h"
-struct image_s;
+struct image;
-/* ETM registers (V1.3 protocol) */
-enum
-{
+/* ETM registers (JTAG protocol) */
+enum {
ETM_CTRL = 0x00,
ETM_CONFIG = 0x01,
ETM_TRIG_EVENT = 0x02,
- ETM_MMD_CTRL = 0x03,
+ ETM_ASIC_CTRL = 0x03,
ETM_STATUS = 0x04,
ETM_SYS_CONFIG = 0x05,
ETM_TRACE_RESOURCE_CTRL = 0x06,
ETM_TRACE_EN_CTRL2 = 0x07,
ETM_TRACE_EN_EVENT = 0x08,
ETM_TRACE_EN_CTRL1 = 0x09,
+ /* optional FIFOFULL */
ETM_FIFOFULL_REGION = 0x0a,
ETM_FIFOFULL_LEVEL = 0x0b,
+ /* viewdata support */
ETM_VIEWDATA_EVENT = 0x0c,
ETM_VIEWDATA_CTRL1 = 0x0d,
- ETM_VIEWDATA_CTRL2 = 0x0e,
+ ETM_VIEWDATA_CTRL2 = 0x0e, /* optional */
ETM_VIEWDATA_CTRL3 = 0x0f,
+ /* N pairs of ADDR_{COMPARATOR,ACCESS} registers */
ETM_ADDR_COMPARATOR_VALUE = 0x10,
ETM_ADDR_ACCESS_TYPE = 0x20,
+ /* N pairs of DATA_COMPARATOR_{VALUE,MASK} registers */
ETM_DATA_COMPARATOR_VALUE = 0x30,
ETM_DATA_COMPARATOR_MASK = 0x40,
- ETM_COUNTER_INITAL_VALUE = 0x50,
+ /* N quads of COUNTER_{RELOAD_{VALUE,EVENT},ENABLE,VALUE} registers */
+ ETM_COUNTER_RELOAD_VALUE = 0x50,
ETM_COUNTER_ENABLE = 0x54,
- ETM_COUNTER_RELOAD_VALUE = 0x58,
+ ETM_COUNTER_RELOAD_EVENT = 0x58,
ETM_COUNTER_VALUE = 0x5c,
- ETM_SEQUENCER_CTRL = 0x60,
+ /* 6 sequencer event transitions */
+ ETM_SEQUENCER_EVENT = 0x60,
ETM_SEQUENCER_STATE = 0x67,
+ /* N triggered outputs */
ETM_EXTERNAL_OUTPUT = 0x68,
+ /* N task contexts */
ETM_CONTEXTID_COMPARATOR_VALUE = 0x6c,
ETM_CONTEXTID_COMPARATOR_MASK = 0x6f,
+ ETM_ID = 0x79,
+};
+
+struct etm_reg {
+ uint32_t value;
+ const struct etm_reg_info *reg_info;
+ struct arm_jtag *jtag_info;
};
-typedef struct etm_reg_s
-{
- int addr;
- arm_jtag_t *jtag_info;
-} etm_reg_t;
+/* Subset of ETM_CTRL bit assignments. Many of these
+ * control the configuration of trace output, which
+ * hooks up either to ETB or to an external device.
+ *
+ * NOTE that these have evolved since the ~v1.3 defns ...
+ */
+enum {
+ ETM_CTRL_POWERDOWN = (1 << 0),
+ ETM_CTRL_MONITOR_CPRT = (1 << 1),
+
+ /* bits 3:2 == trace type */
+ ETM_CTRL_TRACE_DATA = (1 << 2),
+ ETM_CTRL_TRACE_ADDR = (2 << 2),
+ ETM_CTRL_TRACE_MASK = (3 << 2),
-typedef enum
-{
- /* Port width */
+ /* Port width (bits 21 and 6:4) */
ETM_PORT_4BIT = 0x00,
ETM_PORT_8BIT = 0x10,
ETM_PORT_16BIT = 0x20,
- ETM_PORT_WIDTH_MASK = 0x70,
- /* Port modes */
- ETM_PORT_NORMAL = 0x00000,
- ETM_PORT_MUXED = 0x10000,
- ETM_PORT_DEMUXED = 0x20000,
- ETM_PORT_MODE_MASK = 0x30000,
- /* Clocking modes */
- ETM_PORT_FULL_CLOCK = 0x0000,
- ETM_PORT_HALF_CLOCK = 0x1000,
- ETM_PORT_CLOCK_MASK = 0x1000,
-} etm_portmode_t;
-
-typedef enum
-{
- /* Data trace */
- ETMV1_TRACE_NONE = 0x00,
- ETMV1_TRACE_DATA = 0x01,
- ETMV1_TRACE_ADDR = 0x02,
- ETMV1_TRACE_MASK = 0x03,
- /* ContextID */
- ETMV1_CONTEXTID_NONE = 0x00,
- ETMV1_CONTEXTID_8 = 0x10,
- ETMV1_CONTEXTID_16 = 0x20,
- ETMV1_CONTEXTID_32 = 0x30,
- ETMV1_CONTEXTID_MASK = 0x30,
- /* Misc */
- ETMV1_CYCLE_ACCURATE = 0x100,
- ETMV1_BRANCH_OUTPUT = 0x200
-} etmv1_tracemode_t;
+ ETM_PORT_24BIT = 0x30,
+ ETM_PORT_32BIT = 0x40,
+ ETM_PORT_48BIT = 0x50,
+ ETM_PORT_64BIT = 0x60,
+ ETM_PORT_1BIT = 0x00 | (1 << 21),
+ ETM_PORT_2BIT = 0x10 | (1 << 21),
+ ETM_PORT_WIDTH_MASK = 0x70 | (1 << 21),
+
+ ETM_CTRL_FIFOFULL_STALL = (1 << 7),
+ ETM_CTRL_BRANCH_OUTPUT = (1 << 8),
+ ETM_CTRL_DBGRQ = (1 << 9),
+ ETM_CTRL_ETM_PROG = (1 << 10),
+ ETM_CTRL_ETMEN = (1 << 11),
+ ETM_CTRL_CYCLE_ACCURATE = (1 << 12),
+
+ /* Clocking modes -- up to v2.1, bit 13 */
+ ETM_PORT_FULL_CLOCK = (0 << 13),
+ ETM_PORT_HALF_CLOCK = (1 << 13),
+ ETM_PORT_CLOCK_MASK = (1 << 13),
+
+ /* bits 15:14 == context ID size used in tracing */
+ ETM_CTRL_CONTEXTID_NONE = (0 << 14),
+ ETM_CTRL_CONTEXTID_8 = (1 << 14),
+ ETM_CTRL_CONTEXTID_16 = (2 << 14),
+ ETM_CTRL_CONTEXTID_32 = (3 << 14),
+ ETM_CTRL_CONTEXTID_MASK = (3 << 14),
+
+ /* Port modes -- bits 17:16, tied to clocking mode */
+ ETM_PORT_NORMAL = (0 << 16),
+ ETM_PORT_MUXED = (1 << 16),
+ ETM_PORT_DEMUXED = (2 << 16),
+ ETM_PORT_MODE_MASK = (3 << 16),
+
+ /* bits 31:18 defined in v3.0 and later (e.g. ARM11+) */
+};
/* forward-declare ETM context */
-struct etm_context_s;
-
-typedef struct etm_capture_driver_s
-{
- char *name;
- int (*register_commands)(struct command_context_s *cmd_ctx);
- int (*init)(struct etm_context_s *etm_ctx);
- trace_status_t (*status)(struct etm_context_s *etm_ctx);
- int (*read_trace)(struct etm_context_s *etm_ctx);
- int (*start_capture)(struct etm_context_s *etm_ctx);
- int (*stop_capture)(struct etm_context_s *etm_ctx);
-} etm_capture_driver_t;
-
-enum
-{
+struct etm_context;
+
+struct etm_capture_driver {
+ const char *name;
+ const struct command_registration *commands;
+ int (*init)(struct etm_context *etm_ctx);
+ trace_status_t (*status)(struct etm_context *etm_ctx);
+ int (*read_trace)(struct etm_context *etm_ctx);
+ int (*start_capture)(struct etm_context *etm_ctx);
+ int (*stop_capture)(struct etm_context *etm_ctx);
+};
+
+enum {
ETMV1_TRACESYNC_CYCLE = 0x1,
ETMV1_TRIGGER_CYCLE = 0x2,
};
-typedef struct etmv1_trace_data_s
-{
+struct etmv1_trace_data {
uint8_t pipestat; /* bits 0-2 pipeline status */
- u16 packet; /* packet data (4, 8 or 16 bit) */
+ uint16_t packet; /* packet data (4, 8 or 16 bit) */
int flags; /* ETMV1_TRACESYNC_CYCLE, ETMV1_TRIGGER_CYCLE */
-} etmv1_trace_data_t;
+};
/* describe a trace context
* if support for ETMv2 or ETMv3 is to be implemented,
* this will have to be split into version independent elements
* and a version specific part
*/
-typedef struct etm_context_s
-{
- target_t *target; /* target this ETM is connected to */
- reg_cache_t *reg_cache; /* ETM register cache */
- etm_capture_driver_t *capture_driver; /* driver used to access ETM data */
- void *capture_driver_priv; /* capture driver private data */
- u32 trigger_percent; /* percent of trace buffer to be filled after the trigger */
+struct etm_context {
+ struct target *target; /* target this ETM is connected to */
+ struct reg_cache *reg_cache; /* ETM register cache */
+ struct etm_capture_driver *capture_driver; /* driver used to access ETM data */
+ void *capture_driver_priv; /* capture driver private data */
trace_status_t capture_status; /* current state of capture run */
- etmv1_trace_data_t *trace_data; /* trace data */
- u32 trace_depth; /* number of trace cycles to be analyzed, 0 if no trace data available */
- etm_portmode_t portmode; /* normal, multiplexed or demultiplexed */
- etmv1_tracemode_t tracemode; /* type of information the trace contains (data, addres, contextID, ...) */
- armv4_5_state_t core_state; /* current core state (ARM, Thumb, Jazelle) */
- struct image_s *image; /* source for target opcodes */
- u32 pipe_index; /* current trace cycle */
- u32 data_index; /* cycle holding next data packet */
- int data_half; /* port half on a 16 bit port */
- u32 current_pc; /* current program counter */
- u32 pc_ok; /* full PC has been acquired */
- u32 last_branch; /* last branch address output */
- u32 last_branch_reason; /* branch reason code for the last branch encountered */
- u32 last_ptr; /* address of the last data access */
- u32 ptr_ok; /* whether last_ptr is valid */
- u32 context_id; /* context ID of the code being traced */
- u32 last_instruction; /* index of last instruction executed (to calculate cycle timings) */
-} etm_context_t;
+ struct etmv1_trace_data *trace_data; /* trace data */
+ uint32_t trace_depth; /* number of cycles to be analyzed, 0 if no data available */
+ uint32_t control; /* shadow of ETM_CTRL */
+ int /*arm_state*/ core_state; /* current core state */
+ struct image *image; /* source for target opcodes */
+ uint32_t pipe_index; /* current trace cycle */
+ uint32_t data_index; /* cycle holding next data packet */
+ bool data_half; /* port half on a 16 bit port */
+ bool pc_ok; /* full PC has been acquired */
+ bool ptr_ok; /* whether last_ptr is valid */
+ uint8_t bcd_vers; /* e.g. 0x13 == ETMv1.3 */
+ uint32_t config; /* cache of ETM_CONFIG value */
+ uint32_t id; /* cache of ETM_ID value, or 0 */
+ uint32_t current_pc; /* current program counter */
+ uint32_t last_branch; /* last branch address output */
+ uint32_t last_branch_reason; /* type of last branch encountered */
+ uint32_t last_ptr; /* address of the last data access */
+ uint32_t last_instruction; /* index of last executed (to calc timings) */
+};
/* PIPESTAT values */
-typedef enum
-{
+typedef enum {
STAT_IE = 0x0,
STAT_ID = 0x1,
STAT_IN = 0x2,
} etmv1_pipestat_t;
/* branch reason values */
-typedef enum
-{
+typedef enum {
BR_NORMAL = 0x0, /* Normal PC change : periodic synchro (ETMv1.1) */
BR_ENABLE = 0x1, /* Trace has been enabled */
BR_RESTART = 0x2, /* Trace restarted after a FIFO overflow */
BR_NODEBUG = 0x3, /* ARM has exited for debug state */
- BR_PERIOD = 0x4, /* Peridioc synchronization point (ETM>=v1.2)*/
+ BR_PERIOD = 0x4, /* Peridioc synchronization point (ETM >= v1.2)*/
BR_RSVD5 = 0x5, /* reserved */
BR_RSVD6 = 0x6, /* reserved */
BR_RSVD7 = 0x7, /* reserved */
} etmv1_branch_reason_t;
-extern char *etmv1v1_branch_reason_strings[];
+struct reg_cache *etm_build_reg_cache(struct target *target,
+ struct arm_jtag *jtag_info, struct etm_context *etm_ctx);
-extern reg_cache_t* etm_build_reg_cache(target_t *target, arm_jtag_t *jtag_info, etm_context_t *etm_ctx);
-extern int etm_read_reg(reg_t *reg);
-extern int etm_write_reg(reg_t *reg, u32 value);
-extern int etm_read_reg_w_check(reg_t *reg, uint8_t* check_value, uint8_t* check_mask);
-extern int etm_store_reg(reg_t *reg);
-extern int etm_set_reg(reg_t *reg, u32 value);
-extern int etm_set_reg_w_exec(reg_t *reg, uint8_t *buf);
-extern int etm_setup(target_t *target);
+int etm_setup(struct target *target);
-int etm_register_commands(struct command_context_s *cmd_ctx);
-int etm_register_user_commands(struct command_context_s *cmd_ctx);
-extern etm_context_t* etm_create_context(etm_portmode_t portmode, char *capture_driver_name);
+extern const struct command_registration etm_command_handlers[];
#define ERROR_ETM_INVALID_DRIVER (-1300)
#define ERROR_ETM_PORTMODE_NOT_SUPPORTED (-1301)
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