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drm/cma-helper: Add drm_gem_cma_print_info() 

Add drm_gem_cma_print_info() for debugfs printing
struct drm_gem_cma_object specific info.

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20171107191348.17555-8-noralf@tronnes.org
This commit is contained in:
Noralf Trønnes 2017-11-07 20:13:43 +01:00
parent 8d25ccebef
commit d68920120d
2 changed files with 22 additions and 0 deletions
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19
drivers/gpu/drm/drm_gem_cma_helper.c
View File

@ -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)
{
const 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

3
include/drm/drm_gem_cma_helper.h
View File

@ -91,6 +91,9 @@ 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,