Add drm_gem_cma_print_info() for debugfs printing
struct drm_gem_cma_object specific info.
Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
Signed-off-by: Noralf Trønnes <noralf@xxxxxxxxxxx>
---
drivers/gpu/drm/drm_gem_cma_helper.c | 19 +++++++++++++++++++
include/drm/drm_gem_cma_helper.h | 5 ++++-
2 files changed, 23 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_gem_cma_helper.c b/drivers/gpu/drm/drm_gem_cma_helper.c
index 020e7668dfab..89dc7f04fae6 100644
--- a/drivers/gpu/drm/drm_gem_cma_helper.c
+++ b/drivers/gpu/drm/drm_gem_cma_helper.c
@@ -423,6 +423,25 @@ void drm_gem_cma_describe(struct drm_gem_cma_object *cma_obj,
EXPORT_SYMBOL_GPL(drm_gem_cma_describe);
#endif
+/**
+ * drm_gem_cma_print_info() - Print &drm_gem_cma_object info for debugfs
+ * @p: DRM printer
+ * @indent: Tab indentation level
+ * @gem: GEM object
+ *
+ * This function can be used as the &drm_driver->gem_print_info callback.
+ * It prints paddr and vaddr for use in e.g. debugfs output.
+ */
+void drm_gem_cma_print_info(struct drm_printer *p, unsigned int indent,
+ const struct drm_gem_object *obj)
+{
+ struct drm_gem_cma_object *cma_obj = to_drm_gem_cma_obj(obj);
+
+ drm_printf_indent(p, indent, "paddr=%pad\n", &cma_obj->paddr);
+ drm_printf_indent(p, indent, "vaddr=%p\n", cma_obj->vaddr);
+}
+EXPORT_SYMBOL(drm_gem_cma_print_info);
+
/**
* drm_gem_cma_prime_get_sg_table - provide a scatter/gather table of pinned
* pages for a CMA GEM object
diff --git a/include/drm/drm_gem_cma_helper.h b/include/drm/drm_gem_cma_helper.h
index 58a739bf15f1..bc47e6eba271 100644
--- a/include/drm/drm_gem_cma_helper.h
+++ b/include/drm/drm_gem_cma_helper.h
@@ -21,7 +21,7 @@ struct drm_gem_cma_object {
};
static inline struct drm_gem_cma_object *
-to_drm_gem_cma_obj(struct drm_gem_object *gem_obj)
+to_drm_gem_cma_obj(const struct drm_gem_object *gem_obj)
{
return container_of(gem_obj, struct drm_gem_cma_object, base);
}
@@ -94,6 +94,9 @@ unsigned long drm_gem_cma_get_unmapped_area(struct file *filp,
void drm_gem_cma_describe(struct drm_gem_cma_object *obj, struct seq_file *m);
#endif
+void drm_gem_cma_print_info(struct drm_printer *p, unsigned int indent,
+ const struct drm_gem_object *obj);
+
struct sg_table *drm_gem_cma_prime_get_sg_table(struct drm_gem_object *obj);
struct drm_gem_object *
drm_gem_cma_prime_import_sg_table(struct drm_device *dev,
--
2.14.2
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