...
System ID functions are unchanged because they will always use the default map.
Signed-off-by: James Clark james.clark@arm.com --- .../hwtracing/coresight/coresight-etm-perf.c | 5 +++-- .../coresight/coresight-etm3x-core.c | 5 +++-- .../coresight/coresight-etm4x-core.c | 5 +++-- .../hwtracing/coresight/coresight-trace-id.c | 22 +++++++------------ .../hwtracing/coresight/coresight-trace-id.h | 9 +++++--- 5 files changed, 23 insertions(+), 23 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm-perf.c b/drivers/hwtracing/coresight/coresight-etm-perf.c index c0c60e6a1703..4afb9d29f355 100644 --- a/drivers/hwtracing/coresight/coresight-etm-perf.c +++ b/drivers/hwtracing/coresight/coresight-etm-perf.c @@ -232,7 +232,7 @@ static void free_event_data(struct work_struct *work) if (!(IS_ERR_OR_NULL(*ppath))) coresight_release_path(*ppath); *ppath = NULL; - coresight_trace_id_put_cpu_id(cpu); + coresight_trace_id_put_cpu_id(cpu, coresight_trace_id_map_default()); }
/* mark perf event as done for trace id allocator */ @@ -401,7 +401,8 @@ static void *etm_setup_aux(struct perf_event *event, void **pages, }
/* ensure we can allocate a trace ID for this CPU */ - trace_id = coresight_trace_id_get_cpu_id(cpu); + trace_id = coresight_trace_id_get_cpu_id(cpu, + coresight_trace_id_map_default()); if (!IS_VALID_CS_TRACE_ID(trace_id)) { cpumask_clear_cpu(cpu, mask); coresight_release_path(path); diff --git a/drivers/hwtracing/coresight/coresight-etm3x-core.c b/drivers/hwtracing/coresight/coresight-etm3x-core.c index 9d5c1391ffb1..4149e7675ceb 100644 --- a/drivers/hwtracing/coresight/coresight-etm3x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm3x-core.c @@ -465,7 +465,8 @@ int etm_read_alloc_trace_id(struct etm_drvdata *drvdata) * * trace id function has its own lock */ - trace_id = coresight_trace_id_get_cpu_id(drvdata->cpu); + trace_id = coresight_trace_id_get_cpu_id(drvdata->cpu, + coresight_trace_id_map_default()); if (IS_VALID_CS_TRACE_ID(trace_id)) drvdata->traceid = (u8)trace_id; else @@ -477,7 +478,7 @@ int etm_read_alloc_trace_id(struct etm_drvdata *drvdata)
void etm_release_trace_id(struct etm_drvdata *drvdata) { - coresight_trace_id_put_cpu_id(drvdata->cpu); + coresight_trace_id_put_cpu_id(drvdata->cpu, coresight_trace_id_map_default()); }
static int etm_enable_perf(struct coresight_device *csdev, diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c index c2ca4a02dfce..562ef6cb72d8 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c @@ -241,7 +241,8 @@ int etm4_read_alloc_trace_id(struct etmv4_drvdata *drvdata) * or return the one currently allocated. * The trace id function has its own lock */ - trace_id = coresight_trace_id_get_cpu_id(drvdata->cpu); + trace_id = coresight_trace_id_get_cpu_id(drvdata->cpu, + coresight_trace_id_map_default()); if (IS_VALID_CS_TRACE_ID(trace_id)) drvdata->trcid = (u8)trace_id; else @@ -253,7 +254,7 @@ int etm4_read_alloc_trace_id(struct etmv4_drvdata *drvdata)
void etm4_release_trace_id(struct etmv4_drvdata *drvdata) { - coresight_trace_id_put_cpu_id(drvdata->cpu); + coresight_trace_id_put_cpu_id(drvdata->cpu, coresight_trace_id_map_default()); }
struct etm4_enable_arg { diff --git a/drivers/hwtracing/coresight/coresight-trace-id.c b/drivers/hwtracing/coresight/coresight-trace-id.c index 19005b5b4dc4..45ddd50d09a6 100644 --- a/drivers/hwtracing/coresight/coresight-trace-id.c +++ b/drivers/hwtracing/coresight/coresight-trace-id.c @@ -12,7 +12,7 @@
#include "coresight-trace-id.h"
-/* Default trace ID map. Used on systems that don't require per sink mappings */ +/* Default trace ID map. Used in sysfs mode and for system sources */ static struct coresight_trace_id_map id_map_default;
/* maintain a record of the mapping of IDs and pending releases per cpu */ @@ -152,7 +152,7 @@ static void coresight_trace_id_release_all_pending(void) DUMP_ID_MAP(id_map); }
-static int coresight_trace_id_map_get_cpu_id(int cpu, struct coresight_trace_id_map *id_map) +int coresight_trace_id_get_cpu_id(int cpu, struct coresight_trace_id_map *id_map) { unsigned long flags; int id; @@ -195,8 +195,9 @@ static int coresight_trace_id_map_get_cpu_id(int cpu, struct coresight_trace_id_ DUMP_ID_MAP(id_map); return id; } +EXPORT_SYMBOL_GPL(coresight_trace_id_get_cpu_id);
-static void coresight_trace_id_map_put_cpu_id(int cpu, struct coresight_trace_id_map *id_map) +void coresight_trace_id_put_cpu_id(int cpu, struct coresight_trace_id_map *id_map) { unsigned long flags; int id; @@ -222,6 +223,7 @@ static void coresight_trace_id_map_put_cpu_id(int cpu, struct coresight_trace_id DUMP_ID_CPU(cpu, id); DUMP_ID_MAP(id_map); } +EXPORT_SYMBOL_GPL(coresight_trace_id_put_cpu_id);
static int coresight_trace_id_map_get_system_id(struct coresight_trace_id_map *id_map) { @@ -250,19 +252,11 @@ static void coresight_trace_id_map_put_system_id(struct coresight_trace_id_map * DUMP_ID_MAP(id_map); }
-/* API functions */ - -int coresight_trace_id_get_cpu_id(int cpu) -{ - return coresight_trace_id_map_get_cpu_id(cpu, &id_map_default); -} -EXPORT_SYMBOL_GPL(coresight_trace_id_get_cpu_id); - -void coresight_trace_id_put_cpu_id(int cpu) +struct coresight_trace_id_map *coresight_trace_id_map_default(void) { - coresight_trace_id_map_put_cpu_id(cpu, &id_map_default); + return &id_map_default; } -EXPORT_SYMBOL_GPL(coresight_trace_id_put_cpu_id); +EXPORT_SYMBOL_GPL(coresight_trace_id_map_default);
int coresight_trace_id_read_cpu_id(int cpu) { diff --git a/drivers/hwtracing/coresight/coresight-trace-id.h b/drivers/hwtracing/coresight/coresight-trace-id.h index 49438a96fcc6..54b9d8ed903b 100644 --- a/drivers/hwtracing/coresight/coresight-trace-id.h +++ b/drivers/hwtracing/coresight/coresight-trace-id.h @@ -42,7 +42,10 @@ #define IS_VALID_CS_TRACE_ID(id) \ ((id > CORESIGHT_TRACE_ID_RES_0) && (id < CORESIGHT_TRACE_ID_RES_TOP))
-/* Allocate and release IDs for a single default trace ID map */ +/** + * Get the global map that's used by sysfs + */ +struct coresight_trace_id_map *coresight_trace_id_map_default(void);
/** * Read and optionally allocate a CoreSight trace ID and associate with a CPU. @@ -57,7 +60,7 @@ * * return: CoreSight trace ID or -EINVAL if allocation impossible. */ -int coresight_trace_id_get_cpu_id(int cpu); +int coresight_trace_id_get_cpu_id(int cpu, struct coresight_trace_id_map *id_map);
/** * Release an allocated trace ID associated with the CPU. @@ -70,7 +73,7 @@ int coresight_trace_id_get_cpu_id(int cpu); * * @cpu: The CPU index to release the associated trace ID. */ -void coresight_trace_id_put_cpu_id(int cpu); +void coresight_trace_id_put_cpu_id(int cpu, struct coresight_trace_id_map *id_map);
/** * Read the current allocated CoreSight Trace ID value for the CPU.