drm/sprd: save pid/tgid in private file data

[profile/mobile/platform/kernel/linux-3.10-sc7730.git] / drivers / gpu / drm / sprd / sprd_drm_gem.c

diff --git a/drivers/gpu/drm/sprd/sprd_drm_gem.c b/drivers/gpu/drm/sprd/sprd_drm_gem.c
index 1fe2363..537f2fc 100755 (executable)
--- a/drivers/gpu/drm/sprd/sprd_drm_gem.c
+++ b/drivers/gpu/drm/sprd/sprd_drm_gem.c
@@ -282,6 +282,25 @@ static int sprd_drm_gem_handle_create(struct drm_gem_object *obj,
        return 0;
 }
 
+static void sprd_drm_gem_register_pid(struct drm_file *file_priv)
+{
+       struct drm_sprd_file_private *driver_priv = file_priv->driver_priv;
+
+       if (!driver_priv->pid && !driver_priv->tgid) {
+               driver_priv->pid = task_pid_nr(current);
+               driver_priv->tgid = task_tgid_nr(current);
+       } else {
+               if (driver_priv->pid != task_pid_nr(current))
+                       DRM_DEBUG_KMS("wrong pid: %ld, %ld\n",
+                                       (unsigned long)driver_priv->pid,
+                                       (unsigned long)task_pid_nr(current));
+               if (driver_priv->tgid != task_tgid_nr(current))
+                       DRM_DEBUG_KMS("wrong tgid: %ld, %ld\n",
+                                       (unsigned long)driver_priv->tgid,
+                                       (unsigned long)task_tgid_nr(current));
+       }
+}
+
 void sprd_drm_gem_destroy(struct sprd_drm_gem_obj *sprd_gem_obj)
 {
        struct drm_gem_object *obj;
@@ -447,6 +466,8 @@ int sprd_drm_gem_create_ioctl(struct drm_device *dev, void *data,
                return ret;
        }
 
+       sprd_drm_gem_register_pid(file_priv);
+
        do_gettimeofday(&val_end);
        time_end = (uint64_t)(val_end.tv_sec * 1000000 + val_end.tv_usec);
 
@@ -481,6 +502,8 @@ int sprd_drm_gem_create_index_ioctl(struct drm_device *dev, void *data,
                return ret;
        }
 
+       sprd_drm_gem_register_pid(file_priv);
+
        DRM_INFO("%s:h[%d]cnt[%d]sz[%d %d %d]f[0x%x]o[0x%x]a[0x%x]\n",
                __func__,args->handle, args->bufcount,
                (int)args->idx_size[0], (int)args->idx_size[1], (int)args->idx_size[2],
@@ -649,6 +672,22 @@ err:
        return ERR_PTR(ret);
 }
 
+int sprd_drm_gem_prime_fd_to_handle(struct drm_device *dev,
+               struct drm_file *file_priv, int prime_fd, uint32_t *handle)
+{
+       int ret;
+
+       ret = drm_gem_prime_fd_to_handle(dev, file_priv, prime_fd, handle);
+       if (ret < 0)
+               goto out;
+
+       sprd_drm_gem_register_pid(file_priv);
+
+out:
+       return ret;
+}
+
+
 void *sprd_drm_gem_get_dma_addr(struct drm_device *dev,
                                        unsigned int gem_handle,
                                        struct drm_file *file_priv)
@@ -1093,6 +1132,8 @@ int sprd_drm_gem_dumb_create(struct drm_file *file_priv,
                return ret;
        }
 
+       sprd_drm_gem_register_pid(file_priv);
+
        return 0;
 }