drm/amdgpu: do not use drm middle layer for debugfs

Use debugfs API directly instead of drm middle layer.

This also includes following debugfs file output changes:
1 amdgpu_evict_vram/amdgpu_evict_gtt output will not contain any braces.
  e.g. (0) --> 0
2 amdgpu_gpu_recover output will print return value of
  amdgpu_device_gpu_recover() instead of not so important "gpu recover"
  message.

v2: * checkpatch.pl: use '0444' instead of S_IRUGO.
    * remove S_IFREG from mode.
    * remove mode variable.

Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 11 insertions, 13 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index 3c37cf1ae8b7..cf81ade31703 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -27,7 +27,6 @@
  */
 
 #include "amdgpu.h"
-#include <drm/drm_debugfs.h>
 #include <drm/amdgpu_drm.h>
 #include "amdgpu_uvd.h"
 #include "amdgpu_vce.h"
@@ -1264,11 +1263,9 @@ void amdgpu_disable_vblank_kms(struct drm_crtc *crtc)
  */
 #if defined(CONFIG_DEBUG_FS)
 
-static int amdgpu_debugfs_firmware_info(struct seq_file *m, void *data)
+static int amdgpu_debugfs_firmware_info_show(struct seq_file *m, void *unused)
 {
-	struct drm_info_node *node = (struct drm_info_node *) m->private;
-	struct drm_device *dev = node->minor->dev;
-	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct amdgpu_device *adev = (struct amdgpu_device *)m->private;
 	struct drm_amdgpu_info_firmware fw_info;
 	struct drm_amdgpu_query_fw query_fw;
 	struct atom_context *ctx = adev->mode_info.atom_context;
@@ -1474,17 +1471,18 @@ static int amdgpu_debugfs_firmware_info(struct seq_file *m, void *data)
 	return 0;
 }
 
-static const struct drm_info_list amdgpu_firmware_info_list[] = {
-	{"amdgpu_firmware_info", amdgpu_debugfs_firmware_info, 0, NULL},
-};
+DEFINE_SHOW_ATTRIBUTE(amdgpu_debugfs_firmware_info);
+
 #endif
 
-int amdgpu_debugfs_firmware_init(struct amdgpu_device *adev)
+void amdgpu_debugfs_firmware_init(struct amdgpu_device *adev)
 {
 #if defined(CONFIG_DEBUG_FS)
-	return amdgpu_debugfs_add_files(adev, amdgpu_firmware_info_list,
-					ARRAY_SIZE(amdgpu_firmware_info_list));
-#else
-	return 0;
+	struct drm_minor *minor = adev_to_drm(adev)->primary;
+	struct dentry *root = minor->debugfs_root;
+
+	debugfs_create_file("amdgpu_firmware_info", 0444, root,
+			    adev, &amdgpu_debugfs_firmware_info_fops);
+
 #endif
 }