From: Zack Rusin zackr@vmware.com
Drivers duplicate the code required to add debugfs entries for various ttm resource managers. To fix it add common TTM resource manager debugfs code that each driver can reuse.
Specific resource managers can overwrite ttm_resource_manager_func::debug to get more information from those debugfs entries.
Signed-off-by: Zack Rusin zackr@vmware.com Cc: Christian Koenig christian.koenig@amd.com Cc: Huang Rui ray.huang@amd.com Cc: David Airlie airlied@linux.ie Cc: Daniel Vetter daniel@ffwll.ch --- drivers/gpu/drm/ttm/ttm_resource.c | 34 ++++++++++++++++++++++++++++++ include/drm/ttm/ttm_resource.h | 4 ++++ 2 files changed, 38 insertions(+)
diff --git a/drivers/gpu/drm/ttm/ttm_resource.c b/drivers/gpu/drm/ttm/ttm_resource.c index 492ba3157e75..543db15bce5e 100644 --- a/drivers/gpu/drm/ttm/ttm_resource.c +++ b/drivers/gpu/drm/ttm/ttm_resource.c @@ -644,3 +644,37 @@ ttm_kmap_iter_linear_io_fini(struct ttm_kmap_iter_linear_io *iter_io,
ttm_mem_io_free(bdev, mem); } + +#if defined(CONFIG_DEBUG_FS) + +static int ttm_resource_manager_show(struct seq_file *m, void *unused) +{ + struct ttm_resource_manager *man = + (struct ttm_resource_manager *)m->private; + struct drm_printer p = drm_seq_file_printer(m); + ttm_resource_manager_debug(man, &p); + return 0; +} +DEFINE_SHOW_ATTRIBUTE(ttm_resource_manager); + +#endif + +/** + * ttm_resource_manager_create_debugfs - Create debugfs entry for specified + * resource manager. + * @man: The TTM resource manager for which the debugfs stats file be creates + * @parent: debugfs directory in which the file will reside + * @name: The filename to create. + * + * This function setups up a debugfs file that can be used to look + * at debug statistics of the specified ttm_resource_manager. + */ +void ttm_resource_manager_create_debugfs(struct ttm_resource_manager *man, + struct dentry * parent, + const char *name) +{ +#if defined(CONFIG_DEBUG_FS) + debugfs_create_file(name, 0444, parent, man, &ttm_resource_manager_fops); +#endif +} +EXPORT_SYMBOL(ttm_resource_manager_create_debugfs); diff --git a/include/drm/ttm/ttm_resource.h b/include/drm/ttm/ttm_resource.h index 4428a62e5f0e..c702e00fb16e 100644 --- a/include/drm/ttm/ttm_resource.h +++ b/include/drm/ttm/ttm_resource.h @@ -383,4 +383,8 @@ ttm_kmap_iter_linear_io_init(struct ttm_kmap_iter_linear_io *iter_io, void ttm_kmap_iter_linear_io_fini(struct ttm_kmap_iter_linear_io *iter_io, struct ttm_device *bdev, struct ttm_resource *mem); + +void ttm_resource_manager_create_debugfs(struct ttm_resource_manager *man, + struct dentry * parent, + const char *name); #endif