diff options
Diffstat (limited to 'drivers/hwtracing/coresight/coresight-platform.c')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-platform.c | 61 |
1 files changed, 45 insertions, 16 deletions
diff --git a/drivers/hwtracing/coresight/coresight-platform.c b/drivers/hwtracing/coresight/coresight-platform.c index 9d550f5697fa..0db64c5f4995 100644 --- a/drivers/hwtracing/coresight/coresight-platform.c +++ b/drivers/hwtracing/coresight/coresight-platform.c @@ -139,7 +139,7 @@ coresight_find_csdev_by_fwnode(struct fwnode_handle *r_fwnode) EXPORT_SYMBOL_GPL(coresight_find_csdev_by_fwnode); #ifdef CONFIG_OF -static inline bool of_coresight_legacy_ep_is_input(struct device_node *ep) +static bool of_coresight_legacy_ep_is_input(struct device_node *ep) { return of_property_read_bool(ep, "slave-mode"); } @@ -159,7 +159,7 @@ static struct device_node *of_coresight_get_port_parent(struct device_node *ep) return parent; } -static inline struct device_node * +static struct device_node * of_coresight_get_output_ports_node(const struct device_node *node) { return of_get_child_by_name(node, "out-ports"); @@ -243,6 +243,27 @@ static int of_coresight_parse_endpoint(struct device *dev, conn.dest_fwnode = fwnode_handle_get(rdev_fwnode); conn.dest_port = rendpoint.port; + /* + * Get the firmware node of the filter source through the + * reference. This could be used to filter the source in + * building path. + */ + conn.filter_src_fwnode = + fwnode_find_reference(&ep->fwnode, "filter-source", 0); + if (IS_ERR(conn.filter_src_fwnode)) { + conn.filter_src_fwnode = NULL; + } else { + conn.filter_src_dev = + coresight_find_csdev_by_fwnode(conn.filter_src_fwnode); + if (conn.filter_src_dev && + !coresight_is_device_source(conn.filter_src_dev)) { + dev_warn(dev, "port %d: Filter handle is not a trace source : %s\n", + conn.src_port, dev_name(&conn.filter_src_dev->dev)); + conn.filter_src_dev = NULL; + conn.filter_src_fwnode = NULL; + } + } + new_conn = coresight_add_out_conn(dev, pdata, &conn); if (IS_ERR_VALUE(new_conn)) { fwnode_handle_put(conn.dest_fwnode); @@ -275,7 +296,7 @@ static int of_get_coresight_platform_data(struct device *dev, */ if (!parent) { /* - * Avoid warnings in of_graph_get_next_endpoint() + * Avoid warnings in for_each_endpoint_of_node() * if the device doesn't have any graph connections */ if (!of_graph_is_present(node)) @@ -286,7 +307,7 @@ static int of_get_coresight_platform_data(struct device *dev, } /* Iterate through each output port to discover topology */ - while ((ep = of_graph_get_next_endpoint(parent, ep))) { + for_each_endpoint_of_node(parent, ep) { /* * Legacy binding mixes input/output ports under the * same parent. So, skip the input ports if we are dealing @@ -297,21 +318,23 @@ static int of_get_coresight_platform_data(struct device *dev, continue; ret = of_coresight_parse_endpoint(dev, ep, pdata); - if (ret) + if (ret) { + of_node_put(ep); return ret; + } } return 0; } #else -static inline int +static int of_get_coresight_platform_data(struct device *dev, struct coresight_platform_data *pdata) { return -ENOENT; } -static inline int of_coresight_get_cpu(struct device *dev) +static int of_coresight_get_cpu(struct device *dev) { return -ENODEV; } @@ -333,7 +356,7 @@ static const guid_t coresight_graph_uuid = GUID_INIT(0x3ecbc8b6, 0x1d0e, 0x4fb3, #define ACPI_CORESIGHT_LINK_SLAVE 0 #define ACPI_CORESIGHT_LINK_MASTER 1 -static inline bool is_acpi_guid(const union acpi_object *obj) +static bool is_acpi_guid(const union acpi_object *obj) { return (obj->type == ACPI_TYPE_BUFFER) && (obj->buffer.length == 16); } @@ -342,24 +365,24 @@ static inline bool is_acpi_guid(const union acpi_object *obj) * acpi_guid_matches - Checks if the given object is a GUID object and * that it matches the supplied the GUID. */ -static inline bool acpi_guid_matches(const union acpi_object *obj, +static bool acpi_guid_matches(const union acpi_object *obj, const guid_t *guid) { return is_acpi_guid(obj) && guid_equal((guid_t *)obj->buffer.pointer, guid); } -static inline bool is_acpi_dsd_graph_guid(const union acpi_object *obj) +static bool is_acpi_dsd_graph_guid(const union acpi_object *obj) { return acpi_guid_matches(obj, &acpi_graph_uuid); } -static inline bool is_acpi_coresight_graph_guid(const union acpi_object *obj) +static bool is_acpi_coresight_graph_guid(const union acpi_object *obj) { return acpi_guid_matches(obj, &coresight_graph_uuid); } -static inline bool is_acpi_coresight_graph(const union acpi_object *obj) +static bool is_acpi_coresight_graph(const union acpi_object *obj) { const union acpi_object *graphid, *guid, *links; @@ -446,7 +469,7 @@ static inline bool is_acpi_coresight_graph(const union acpi_object *obj) * }, // End of ACPI Graph Property * }) */ -static inline bool acpi_validate_dsd_graph(const union acpi_object *graph) +static bool acpi_validate_dsd_graph(const union acpi_object *graph) { int i, n; const union acpi_object *rev, *nr_graphs; @@ -530,7 +553,7 @@ acpi_get_dsd_graph(struct acpi_device *adev, struct acpi_buffer *buf) return NULL; } -static inline bool +static bool acpi_validate_coresight_graph(const union acpi_object *cs_graph) { int nlinks; @@ -771,14 +794,14 @@ acpi_get_coresight_platform_data(struct device *dev, #else -static inline int +static int acpi_get_coresight_platform_data(struct device *dev, struct coresight_platform_data *pdata) { return -ENOENT; } -static inline int acpi_coresight_get_cpu(struct device *dev) +static int acpi_coresight_get_cpu(struct device *dev) { return -ENODEV; } @@ -794,6 +817,12 @@ int coresight_get_cpu(struct device *dev) } EXPORT_SYMBOL_GPL(coresight_get_cpu); +int coresight_get_static_trace_id(struct device *dev, u32 *id) +{ + return fwnode_property_read_u32(dev_fwnode(dev), "arm,static-trace-id", id); +} +EXPORT_SYMBOL_GPL(coresight_get_static_trace_id); + struct coresight_platform_data * coresight_get_platform_data(struct device *dev) { |