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arm_adi_v5: let dap_lookup_cs_component() to get AP dbgbase 

Simplify the code in cortex_a and aarch64 by moving the call to
dap_get_debugbase() inside dap_lookup_cs_component().

This has the further effects:
- dap_get_debugbase() is not referenced outside arm_adi_v5.c and
  becomes static;
- dap_lookup_cs_component() looses one parameter;
- the coreid parameter 'idx' is passed as value;
- the caller in aarch64 don't have and don't print the irrelevant
  value of AP register APID;
- fixes the debug message in the caller in aarch64 to print the
  coreid value instead of always zero.

Change-Id: Ic7f0f643fdf067c059c8f2455a02ff18a3fed054
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/6823
Tested-by: jenkins
This commit is contained in:
Antonio Borneo 2022-01-15 18:34:21 +01:00
parent 7351330a0f
commit 613f1c6abb
4 changed files with 24 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
src/target/aarch64.c
View File

@ -2574,20 +2574,13 @@ static int aarch64_examine_first(struct target *target)
armv8->debug_ap->memaccess_tck = 10;
if (!target->dbgbase_set) {
target_addr_t dbgbase;
/* Get ROM Table base */
uint32_t apid;
int32_t coreidx = target->coreid;
retval = dap_get_debugbase(armv8->debug_ap, &dbgbase, &apid);
if (retval != ERROR_OK)
return retval;
/* Lookup Processor DAP */
retval = dap_lookup_cs_component(armv8->debug_ap, dbgbase, ARM_CS_C9_DEVTYPE_CORE_DEBUG,
&armv8->debug_base, &coreidx);
retval = dap_lookup_cs_component(armv8->debug_ap, ARM_CS_C9_DEVTYPE_CORE_DEBUG,
&armv8->debug_base, target->coreid);
if (retval != ERROR_OK)
return retval;
LOG_DEBUG("Detected core %" PRId32 " dbgbase: " TARGET_ADDR_FMT
" apid: %08" PRIx32, coreidx, armv8->debug_base, apid);
LOG_DEBUG("Detected core %" PRId32 " dbgbase: " TARGET_ADDR_FMT,
target->coreid, armv8->debug_base);
} else
armv8->debug_base = target->dbgbase;

20
src/target/arm_adi_v5.c
View File

@ -1002,7 +1002,7 @@ int dap_find_ap(struct adiv5_dap *dap, enum ap_type type_to_find, struct adiv5_a
return ERROR_FAIL;
}
int dap_get_debugbase(struct adiv5_ap *ap,
static int dap_get_debugbase(struct adiv5_ap *ap,
target_addr_t *dbgbase, uint32_t *apid)
{
struct adiv5_dap *dap = ap->dap;
@ -1038,7 +1038,7 @@ int dap_get_debugbase(struct adiv5_ap *ap,
return ERROR_OK;
}
int dap_lookup_cs_component(struct adiv5_ap *ap,
static int _dap_lookup_cs_component(struct adiv5_ap *ap,
target_addr_t dbgbase, uint8_t type, target_addr_t *addr, int32_t *idx)
{
uint32_t romentry, entry_offset = 0, devtype;
@ -1066,7 +1066,7 @@ int dap_lookup_cs_component(struct adiv5_ap *ap,
}
unsigned int class = (c_cid1 & ARM_CS_CIDR1_CLASS_MASK) >> ARM_CS_CIDR1_CLASS_SHIFT;
if (class == ARM_CS_CLASS_0X1_ROM_TABLE) {
retval = dap_lookup_cs_component(ap, component_base,
retval = _dap_lookup_cs_component(ap, component_base,
type, addr, idx);
if (retval == ERROR_OK)
break;
@ -1094,6 +1094,20 @@ int dap_lookup_cs_component(struct adiv5_ap *ap,
return ERROR_OK;
}
int dap_lookup_cs_component(struct adiv5_ap *ap, uint8_t type,
target_addr_t *addr, int32_t core_id)
{
int32_t idx = core_id;
target_addr_t dbgbase;
uint32_t apid;
int retval = dap_get_debugbase(ap, &dbgbase, &apid);
if (retval != ERROR_OK)
return retval;
return _dap_lookup_cs_component(ap, dbgbase, type, addr, &idx);
}
/** Holds registers and coordinates of a CoreSight component */
struct cs_component_vals {
struct adiv5_ap *ap;

6
src/target/arm_adi_v5.h
View File

@ -619,10 +619,6 @@ int mem_ap_init(struct adiv5_ap *ap);
/* Invalidate cached DP select and cached TAR and CSW of all APs */
void dap_invalidate_cache(struct adiv5_dap *dap);
/* Probe the AP for ROM Table location */
int dap_get_debugbase(struct adiv5_ap *ap,
target_addr_t *dbgbase, uint32_t *apid);
/* Probe Access Ports to find a particular type */
int dap_find_ap(struct adiv5_dap *dap,
enum ap_type type_to_find,
@ -641,7 +637,7 @@ static inline bool dap_is_multidrop(struct adiv5_dap *dap)
/* Lookup CoreSight component */
int dap_lookup_cs_component(struct adiv5_ap *ap,
target_addr_t dbgbase, uint8_t type, target_addr_t *addr, int32_t *idx);
uint8_t type, target_addr_t *addr, int32_t idx);
struct target;

11
src/target/cortex_a.c
View File

@ -2905,18 +2905,11 @@ static int cortex_a_examine_first(struct target *target)
armv7a->debug_ap->memaccess_tck = 80;
if (!target->dbgbase_set) {
target_addr_t dbgbase;
/* Get ROM Table base */
uint32_t apid;
int32_t coreidx = target->coreid;
LOG_DEBUG("%s's dbgbase is not set, trying to detect using the ROM table",
target->cmd_name);
retval = dap_get_debugbase(armv7a->debug_ap, &dbgbase, &apid);
if (retval != ERROR_OK)
return retval;
/* Lookup Processor DAP */
retval = dap_lookup_cs_component(armv7a->debug_ap, dbgbase, ARM_CS_C9_DEVTYPE_CORE_DEBUG,
&armv7a->debug_base, &coreidx);
retval = dap_lookup_cs_component(armv7a->debug_ap, ARM_CS_C9_DEVTYPE_CORE_DEBUG,
&armv7a->debug_base, target->coreid);
if (retval != ERROR_OK) {
LOG_ERROR("Can't detect %s's dbgbase from the ROM table; you need to specify it explicitly.",
target->cmd_name);