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arm_adi_v5: separate ROM table parsing from command output [2/3] 

This change only targets the output of rtp_cs_component().
To easily propagate the coordinates of the CoreSight component,
add them in the struct that holds the register values.
While there, define a macro for the max depth of ROM tables.

Change-Id: I75e5ef4f9419da3192123aebcd61471c2af9374f
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/6820
Tested-by: jenkins
This commit is contained in:
Antonio Borneo 2022-01-16 13:59:38 +01:00
parent 21f7885d1c
commit c83b94b2c8
2 changed files with 107 additions and 65 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

168
src/target/arm_adi_v5.c
View File

@ -1094,8 +1094,10 @@ int dap_lookup_cs_component(struct adiv5_ap *ap,
return ERROR_OK;
}
/** Holds registers of a CoreSight component */
/** Holds registers and coordinates of a CoreSight component */
struct cs_component_vals {
struct adiv5_ap *ap;
target_addr_t component_base;
uint64_t pid;
uint32_t cid;
uint32_t devarch;
@ -1122,6 +1124,9 @@ static int rtp_read_cs_regs(struct adiv5_ap *ap, target_addr_t component_base,
uint32_t pid0, pid1, pid2, pid3, pid4;
int retval = ERROR_OK;
v->ap = ap;
v->component_base = component_base;
/* sort by offset to gain speed */
/*
@ -1477,10 +1482,15 @@ static int dap_devtype_display(struct command_invocation *cmd, uint32_t devtype)
return ERROR_OK;
}
/* Broken ROM tables can have circular references. Stop after a while */
#define ROM_TABLE_MAX_DEPTH (16)
/* TODO: these prototypes will be removed in a following patch */
static int dap_info_mem_ap_header(struct command_invocation *cmd,
int retval, struct adiv5_ap *ap,
target_addr_t dbgbase, uint32_t apid);
static int dap_info_cs_component(struct command_invocation *cmd,
int retval, struct cs_component_vals *v, int depth);
static int rtp_cs_component(struct command_invocation *cmd,
struct adiv5_ap *ap, target_addr_t dbgbase, int depth);
@ -1542,90 +1552,34 @@ static int rtp_cs_component(struct command_invocation *cmd,
{
struct cs_component_vals v;
int retval;
char tabs[16] = "";
assert(IS_ALIGNED(base_address, ARM_CS_ALIGN));
if (depth > 16) {
command_print(cmd, "\tTables too deep");
return ERROR_FAIL;
}
if (depth > ROM_TABLE_MAX_DEPTH)
retval = ERROR_FAIL;
else
retval = rtp_read_cs_regs(ap, base_address, &v);
if (depth)
snprintf(tabs, sizeof(tabs), "[L%02d] ", depth);
command_print(cmd, "\t\tComponent base address " TARGET_ADDR_FMT, base_address);
retval = rtp_read_cs_regs(ap, base_address, &v);
if (retval != ERROR_OK) {
command_print(cmd, "\t\tCan't read component, the corresponding core might be turned off");
retval = dap_info_cs_component(cmd, retval, &v, depth);
if (retval != ERROR_OK)
return ERROR_OK; /* Don't abort recursion */
}
if (!is_valid_arm_cs_cidr(v.cid)) {
command_print(cmd, "\t\tInvalid CID 0x%08" PRIx32, v.cid);
if (!is_valid_arm_cs_cidr(v.cid))
return ERROR_OK; /* Don't abort recursion */
}
/* component may take multiple 4K pages */
uint32_t size = ARM_CS_PIDR_SIZE(v.pid);
if (size > 0)
command_print(cmd, "\t\tStart address " TARGET_ADDR_FMT, base_address - 0x1000 * size);
command_print(cmd, "\t\tPeripheral ID 0x%010" PRIx64, v.pid);
const unsigned int class = ARM_CS_CIDR_CLASS(v.cid);
const unsigned int part_num = ARM_CS_PIDR_PART(v.pid);
unsigned int designer_id = ARM_CS_PIDR_DESIGNER(v.pid);
if (v.pid & ARM_CS_PIDR_JEDEC) {
/* JEP106 code */
command_print(cmd, "\t\tDesigner is 0x%03x, %s",
designer_id, jep106_manufacturer(designer_id));
} else {
/* Legacy ASCII ID, clear invalid bits */
designer_id &= 0x7f;
command_print(cmd, "\t\tDesigner ASCII code 0x%02x, %s",
designer_id, designer_id == 0x41 ? "ARM" : "<unknown>");
}
const struct dap_part_nums *partnum = pidr_to_part_num(designer_id, part_num);
command_print(cmd, "\t\tPart is 0x%03x, %s %s", part_num, partnum->type, partnum->full);
command_print(cmd, "\t\tComponent class is 0x%x, %s", class, class_description[class]);
if (class == ARM_CS_CLASS_0X1_ROM_TABLE) {
if (v.devtype_memtype & ARM_CS_C1_MEMTYPE_SYSMEM_MASK)
command_print(cmd, "\t\tMEMTYPE system memory present on bus");
else
command_print(cmd, "\t\tMEMTYPE system memory not present: dedicated debug bus");
if (class == ARM_CS_CLASS_0X1_ROM_TABLE)
return rtp_rom_loop(cmd, ap, base_address, depth, 960);
}
if (class == ARM_CS_CLASS_0X9_CS_COMPONENT) {
retval = dap_devtype_display(cmd, v.devtype_memtype);
if (retval != ERROR_OK)
return retval;
/* REVISIT also show ARM_CS_C9_DEVID */
if ((v.devarch & ARM_CS_C9_DEVARCH_PRESENT) == 0)
return ERROR_OK;
unsigned int architect_id = (v.devarch & ARM_CS_C9_DEVARCH_ARCHITECT_MASK) >> ARM_CS_C9_DEVARCH_ARCHITECT_SHIFT;
unsigned int revision = (v.devarch & ARM_CS_C9_DEVARCH_REVISION_MASK) >> ARM_CS_C9_DEVARCH_REVISION_SHIFT;
command_print(cmd, "\t\tDev Arch is 0x%08" PRIx32 ", %s \"%s\" rev.%u", v.devarch,
jep106_manufacturer(architect_id), class0x9_devarch_description(v.devarch),
revision);
/* quit if not ROM table */
if ((v.devarch & DEVARCH_ID_MASK) != DEVARCH_ROM_C_0X9)
return ERROR_OK;
if (v.devid & ARM_CS_C9_DEVID_SYSMEM_MASK)
command_print(cmd, "\t\tMEMTYPE system memory present on bus");
else
command_print(cmd, "\t\tMEMTYPE system memory not present: dedicated debug bus");
return rtp_rom_loop(cmd, ap, base_address, depth, 512);
}
@ -1715,6 +1669,90 @@ static int dap_info_mem_ap_header(struct command_invocation *cmd,
return ERROR_OK;
}
static int dap_info_cs_component(struct command_invocation *cmd,
int retval, struct cs_component_vals *v, int depth)
{
if (depth > ROM_TABLE_MAX_DEPTH) {
command_print(cmd, "\tTables too deep");
return ERROR_FAIL;
}
command_print(cmd, "\t\tComponent base address " TARGET_ADDR_FMT, v->component_base);
if (retval != ERROR_OK) {
command_print(cmd, "\t\tCan't read component, the corresponding core might be turned off");
return retval;
}
if (!is_valid_arm_cs_cidr(v->cid)) {
command_print(cmd, "\t\tInvalid CID 0x%08" PRIx32, v->cid);
return ERROR_OK; /* Don't abort recursion */
}
/* component may take multiple 4K pages */
uint32_t size = ARM_CS_PIDR_SIZE(v->pid);
if (size > 0)
command_print(cmd, "\t\tStart address " TARGET_ADDR_FMT, v->component_base - 0x1000 * size);
command_print(cmd, "\t\tPeripheral ID 0x%010" PRIx64, v->pid);
const unsigned int part_num = ARM_CS_PIDR_PART(v->pid);
unsigned int designer_id = ARM_CS_PIDR_DESIGNER(v->pid);
if (v->pid & ARM_CS_PIDR_JEDEC) {
/* JEP106 code */
command_print(cmd, "\t\tDesigner is 0x%03x, %s",
designer_id, jep106_manufacturer(designer_id));
} else {
/* Legacy ASCII ID, clear invalid bits */
designer_id &= 0x7f;
command_print(cmd, "\t\tDesigner ASCII code 0x%02x, %s",
designer_id, designer_id == 0x41 ? "ARM" : "<unknown>");
}
const struct dap_part_nums *partnum = pidr_to_part_num(designer_id, part_num);
command_print(cmd, "\t\tPart is 0x%03x, %s %s", part_num, partnum->type, partnum->full);
const unsigned int class = ARM_CS_CIDR_CLASS(v->cid);
command_print(cmd, "\t\tComponent class is 0x%x, %s", class, class_description[class]);
if (class == ARM_CS_CLASS_0X1_ROM_TABLE) {
if (v->devtype_memtype & ARM_CS_C1_MEMTYPE_SYSMEM_MASK)
command_print(cmd, "\t\tMEMTYPE system memory present on bus");
else
command_print(cmd, "\t\tMEMTYPE system memory not present: dedicated debug bus");
return ERROR_OK;
}
if (class == ARM_CS_CLASS_0X9_CS_COMPONENT) {
dap_devtype_display(cmd, v->devtype_memtype);
/* REVISIT also show ARM_CS_C9_DEVID */
if ((v->devarch & ARM_CS_C9_DEVARCH_PRESENT) == 0)
return ERROR_OK;
unsigned int architect_id = ARM_CS_C9_DEVARCH_ARCHITECT(v->devarch);
unsigned int revision = ARM_CS_C9_DEVARCH_REVISION(v->devarch);
command_print(cmd, "\t\tDev Arch is 0x%08" PRIx32 ", %s \"%s\" rev.%u", v->devarch,
jep106_manufacturer(architect_id), class0x9_devarch_description(v->devarch),
revision);
if ((v->devarch & DEVARCH_ID_MASK) == DEVARCH_ROM_C_0X9) {
command_print(cmd, "\t\tType is ROM table");
if (v->devid & ARM_CS_C9_DEVID_SYSMEM_MASK)
command_print(cmd, "\t\tMEMTYPE system memory present on bus");
else
command_print(cmd, "\t\tMEMTYPE system memory not present: dedicated debug bus");
}
return ERROR_OK;
}
/* Class other than 0x1 and 0x9 */
return ERROR_OK;
}
enum adiv5_cfg_param {
CFG_DAP,
CFG_AP_NUM,

4
src/target/arm_coresight.h
View File

@ -66,6 +66,10 @@ static inline bool is_valid_arm_cs_cidr(uint32_t cidr)
#define ARM_CS_C9_DEVARCH_PRESENT BIT(20)
#define ARM_CS_C9_DEVARCH_ARCHITECT_MASK (0xFFE00000)
#define ARM_CS_C9_DEVARCH_ARCHITECT_SHIFT (21)
#define ARM_CS_C9_DEVARCH_REVISION(devarch) \
(((devarch) & ARM_CS_C9_DEVARCH_REVISION_MASK) >> ARM_CS_C9_DEVARCH_REVISION_SHIFT)
#define ARM_CS_C9_DEVARCH_ARCHITECT(devarch) \
(((devarch) & ARM_CS_C9_DEVARCH_ARCHITECT_MASK) >> ARM_CS_C9_DEVARCH_ARCHITECT_SHIFT)
#define ARM_CS_C9_DEVID (0xFC8)