[Intel-gfx] [PATCH 1/3] drm: Add debug prints for the various object lookup errors
Daniel Vetter
daniel at ffwll.ch
Tue Jan 22 09:38:30 UTC 2019
On Mon, Jan 21, 2019 at 10:24:28PM +0200, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
>
> Only some of the drm mode object lookups have a corresponding debug
> print for the lookup failure. That makes logs a bit hard to parse
> when you can't see where the bad object ID is being used. Add a bunch
> more debug prints, and unify their appearance.
>
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
Instead of sprinkling these all over, what about the reverse route and
pushing this into drm_mode_object_find? We can dump id + object type, that
should be all we need really. If we go this way maybe add kerneldoc to the
various drm_*_find/lookup functions so this doesn't get copypasted again
...
-Daniel
> ---
> drivers/gpu/drm/drm_atomic_uapi.c | 5 +++++
> drivers/gpu/drm/drm_color_mgmt.c | 8 ++++++--
> drivers/gpu/drm/drm_connector.c | 5 ++++-
> drivers/gpu/drm/drm_crtc.c | 12 +++++++-----
> drivers/gpu/drm/drm_encoder.c | 4 +++-
> drivers/gpu/drm/drm_framebuffer.c | 4 +++-
> drivers/gpu/drm/drm_mode_object.c | 17 ++++++++++++++---
> drivers/gpu/drm/drm_plane.c | 13 +++++++++----
> drivers/gpu/drm/drm_property.c | 12 +++++++++---
> drivers/gpu/drm/drm_vblank.c | 8 ++++++--
> 10 files changed, 66 insertions(+), 22 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atomic_uapi.c
> index 9a1f41adfc67..06390307e5a3 100644
> --- a/drivers/gpu/drm/drm_atomic_uapi.c
> +++ b/drivers/gpu/drm/drm_atomic_uapi.c
> @@ -1321,11 +1321,14 @@ int drm_mode_atomic_ioctl(struct drm_device *dev,
>
> obj = drm_mode_object_find(dev, file_priv, obj_id, DRM_MODE_OBJECT_ANY);
> if (!obj) {
> + DRM_DEBUG_ATOMIC("Unknown object ID %d\n", obj_id);
> ret = -ENOENT;
> goto out;
> }
>
> if (!obj->properties) {
> + DRM_DEBUG_ATOMIC("Object ID %d has no properties\n",
> + obj_id);
> drm_mode_object_put(obj);
> ret = -ENOENT;
> goto out;
> @@ -1352,6 +1355,8 @@ int drm_mode_atomic_ioctl(struct drm_device *dev,
>
> prop = drm_mode_obj_find_prop_id(obj, prop_id);
> if (!prop) {
> + DRM_DEBUG_ATOMIC("Unknown property ID %d\n",
> + prop_id);
> drm_mode_object_put(obj);
> ret = -ENOENT;
> goto out;
> diff --git a/drivers/gpu/drm/drm_color_mgmt.c b/drivers/gpu/drm/drm_color_mgmt.c
> index 07dcf47daafe..a99ee15b8328 100644
> --- a/drivers/gpu/drm/drm_color_mgmt.c
> +++ b/drivers/gpu/drm/drm_color_mgmt.c
> @@ -245,8 +245,10 @@ int drm_mode_gamma_set_ioctl(struct drm_device *dev,
> return -EOPNOTSUPP;
>
> crtc = drm_crtc_find(dev, file_priv, crtc_lut->crtc_id);
> - if (!crtc)
> + if (!crtc) {
> + DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_lut->crtc_id);
> return -ENOENT;
> + }
>
> if (crtc->funcs->gamma_set == NULL)
> return -ENOSYS;
> @@ -313,8 +315,10 @@ int drm_mode_gamma_get_ioctl(struct drm_device *dev,
> return -EOPNOTSUPP;
>
> crtc = drm_crtc_find(dev, file_priv, crtc_lut->crtc_id);
> - if (!crtc)
> + if (!crtc) {
> + DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_lut->crtc_id);
> return -ENOENT;
> + }
>
> /* memcpy into gamma store */
> if (crtc_lut->gamma_size != crtc->gamma_size)
> diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
> index 847539645558..8745eb132fd4 100644
> --- a/drivers/gpu/drm/drm_connector.c
> +++ b/drivers/gpu/drm/drm_connector.c
> @@ -1952,8 +1952,11 @@ int drm_mode_getconnector(struct drm_device *dev, void *data,
> memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
>
> connector = drm_connector_lookup(dev, file_priv, out_resp->connector_id);
> - if (!connector)
> + if (!connector) {
> + DRM_DEBUG_KMS("Unknown connector ID %d\n",
> + out_resp->connector_id);
> return -ENOENT;
> + }
>
> drm_connector_for_each_possible_encoder(connector, encoder, i)
> encoders_count++;
> diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
> index 7dabbaf033a1..e5f234ffcd23 100644
> --- a/drivers/gpu/drm/drm_crtc.c
> +++ b/drivers/gpu/drm/drm_crtc.c
> @@ -369,8 +369,10 @@ int drm_mode_getcrtc(struct drm_device *dev,
> return -EOPNOTSUPP;
>
> crtc = drm_crtc_find(dev, file_priv, crtc_resp->crtc_id);
> - if (!crtc)
> + if (!crtc) {
> + DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_resp->crtc_id);
> return -ENOENT;
> + }
>
> plane = crtc->primary;
>
> @@ -586,8 +588,8 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
> } else {
> fb = drm_framebuffer_lookup(dev, file_priv, crtc_req->fb_id);
> if (!fb) {
> - DRM_DEBUG_KMS("Unknown FB ID%d\n",
> - crtc_req->fb_id);
> + DRM_DEBUG_KMS("Unknown FB ID %d\n",
> + crtc_req->fb_id);
> ret = -ENOENT;
> goto out;
> }
> @@ -682,8 +684,8 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
>
> connector = drm_connector_lookup(dev, file_priv, out_id);
> if (!connector) {
> - DRM_DEBUG_KMS("Connector id %d unknown\n",
> - out_id);
> + DRM_DEBUG_KMS("Unknown connector ID %d\n",
> + out_id);
> ret = -ENOENT;
> goto out;
> }
> diff --git a/drivers/gpu/drm/drm_encoder.c b/drivers/gpu/drm/drm_encoder.c
> index b694fb57eaa4..107f3fff3f3f 100644
> --- a/drivers/gpu/drm/drm_encoder.c
> +++ b/drivers/gpu/drm/drm_encoder.c
> @@ -225,8 +225,10 @@ int drm_mode_getencoder(struct drm_device *dev, void *data,
> return -EOPNOTSUPP;
>
> encoder = drm_encoder_find(dev, file_priv, enc_resp->encoder_id);
> - if (!encoder)
> + if (!encoder) {
> + DRM_DEBUG_KMS("Unknown encoder ID %d\n", enc_resp->encoder_id);
> return -ENOENT;
> + }
>
> drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
> crtc = drm_encoder_get_crtc(encoder);
> diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c
> index 7abcb265a108..54f36bf7631e 100644
> --- a/drivers/gpu/drm/drm_framebuffer.c
> +++ b/drivers/gpu/drm/drm_framebuffer.c
> @@ -431,8 +431,10 @@ int drm_mode_rmfb(struct drm_device *dev, u32 fb_id,
> return -EOPNOTSUPP;
>
> fb = drm_framebuffer_lookup(dev, file_priv, fb_id);
> - if (!fb)
> + if (!fb) {
> + DRM_DEBUG_KMS("Unknown FB ID %d\n", fb_id);
> return -ENOENT;
> + }
>
> mutex_lock(&file_priv->fbs_lock);
> list_for_each_entry(fbl, &file_priv->fbs, filp_head)
> diff --git a/drivers/gpu/drm/drm_mode_object.c b/drivers/gpu/drm/drm_mode_object.c
> index a9005c1c2384..e8dac94d576d 100644
> --- a/drivers/gpu/drm/drm_mode_object.c
> +++ b/drivers/gpu/drm/drm_mode_object.c
> @@ -388,10 +388,13 @@ int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
>
> obj = drm_mode_object_find(dev, file_priv, arg->obj_id, arg->obj_type);
> if (!obj) {
> + DRM_DEBUG_KMS("Unknown object ID %d (type 0x%x)\n",
> + arg->obj_id, arg->obj_type);
> ret = -ENOENT;
> goto out;
> }
> if (!obj->properties) {
> + DRM_DEBUG_KMS("Object ID %d has no properties\n", arg->obj_id);
> ret = -EINVAL;
> goto out_unref;
> }
> @@ -509,15 +512,23 @@ int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
> return -EOPNOTSUPP;
>
> arg_obj = drm_mode_object_find(dev, file_priv, arg->obj_id, arg->obj_type);
> - if (!arg_obj)
> + if (!arg_obj) {
> + DRM_DEBUG_KMS("Unknown object ID %d (type 0x%x)\n",
> + arg->obj_id, arg->obj_type);
> return -ENOENT;
> + }
>
> - if (!arg_obj->properties)
> + if (!arg_obj->properties) {
> + DRM_DEBUG_KMS("Object ID %d has no properties\n",
> + arg->prop_id);
> goto out_unref;
> + }
>
> property = drm_mode_obj_find_prop_id(arg_obj, arg->prop_id);
> - if (!property)
> + if (!property) {
> + DRM_DEBUG_KMS("Unknown property ID %d\n", arg->prop_id);
> goto out_unref;
> + }
>
> if (drm_drv_uses_atomic_modeset(property->dev))
> ret = set_property_atomic(arg_obj, property, arg->value);
> diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c
> index 4cfb56893b7f..830af4c60d55 100644
> --- a/drivers/gpu/drm/drm_plane.c
> +++ b/drivers/gpu/drm/drm_plane.c
> @@ -520,8 +520,10 @@ int drm_mode_getplane(struct drm_device *dev, void *data,
> return -EOPNOTSUPP;
>
> plane = drm_plane_find(dev, file_priv, plane_resp->plane_id);
> - if (!plane)
> + if (!plane) {
> + DRM_DEBUG_KMS("Unknown plane ID %d\n", plane_resp->plane_id);
> return -ENOENT;
> + }
>
> drm_modeset_lock(&plane->mutex, NULL);
> if (plane->state && plane->state->crtc && drm_lease_held(file_priv, plane->state->crtc->base.id))
> @@ -813,7 +815,7 @@ int drm_mode_setplane(struct drm_device *dev, void *data,
> if (plane_req->fb_id) {
> fb = drm_framebuffer_lookup(dev, file_priv, plane_req->fb_id);
> if (!fb) {
> - DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
> + DRM_DEBUG_KMS("Unknown FB ID %d\n",
> plane_req->fb_id);
> return -ENOENT;
> }
> @@ -821,7 +823,7 @@ int drm_mode_setplane(struct drm_device *dev, void *data,
> crtc = drm_crtc_find(dev, file_priv, plane_req->crtc_id);
> if (!crtc) {
> drm_framebuffer_put(fb);
> - DRM_DEBUG_KMS("Unknown crtc ID %d\n",
> + DRM_DEBUG_KMS("Unknown CRTC ID %d\n",
> plane_req->crtc_id);
> return -ENOENT;
> }
> @@ -1057,8 +1059,10 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev,
> return -EINVAL;
>
> crtc = drm_crtc_find(dev, file_priv, page_flip->crtc_id);
> - if (!crtc)
> + if (!crtc) {
> + DRM_DEBUG_KMS("Unknown CRTC ID %d\n", page_flip->crtc_id);
> return -ENOENT;
> + }
>
> plane = crtc->primary;
>
> @@ -1126,6 +1130,7 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev,
>
> fb = drm_framebuffer_lookup(dev, file_priv, page_flip->fb_id);
> if (!fb) {
> + DRM_DEBUG_KMS("Unknown FB ID %d\n", page_flip->fb_id);
> ret = -ENOENT;
> goto out;
> }
> diff --git a/drivers/gpu/drm/drm_property.c b/drivers/gpu/drm/drm_property.c
> index 79c77c3cad86..254b71493221 100644
> --- a/drivers/gpu/drm/drm_property.c
> +++ b/drivers/gpu/drm/drm_property.c
> @@ -467,8 +467,10 @@ int drm_mode_getproperty_ioctl(struct drm_device *dev,
> return -EOPNOTSUPP;
>
> property = drm_property_find(dev, file_priv, out_resp->prop_id);
> - if (!property)
> + if (!property) {
> + DRM_DEBUG_KMS("Unknwon property ID %d\n", out_resp->prop_id);
> return -ENOENT;
> + }
>
> strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
> out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
> @@ -760,8 +762,10 @@ int drm_mode_getblob_ioctl(struct drm_device *dev,
> return -EOPNOTSUPP;
>
> blob = drm_property_lookup_blob(dev, out_resp->blob_id);
> - if (!blob)
> + if (!blob) {
> + DRM_DEBUG_KMS("Unknwon blob ID %d\n", out_resp->blob_id);
> return -ENOENT;
> + }
>
> if (out_resp->length == blob->length) {
> if (copy_to_user(u64_to_user_ptr(out_resp->data),
> @@ -826,8 +830,10 @@ int drm_mode_destroyblob_ioctl(struct drm_device *dev,
> return -EOPNOTSUPP;
>
> blob = drm_property_lookup_blob(dev, out_resp->blob_id);
> - if (!blob)
> + if (!blob) {
> + DRM_DEBUG_KMS("Unknwon blob ID %d\n", out_resp->blob_id);
> return -ENOENT;
> + }
>
> mutex_lock(&dev->mode_config.blob_lock);
> /* Ensure the property was actually created by this user. */
> diff --git a/drivers/gpu/drm/drm_vblank.c b/drivers/gpu/drm/drm_vblank.c
> index cde71ee95a8f..793acfa5002e 100644
> --- a/drivers/gpu/drm/drm_vblank.c
> +++ b/drivers/gpu/drm/drm_vblank.c
> @@ -1816,8 +1816,10 @@ int drm_crtc_get_sequence_ioctl(struct drm_device *dev, void *data,
> return -EINVAL;
>
> crtc = drm_crtc_find(dev, file_priv, get_seq->crtc_id);
> - if (!crtc)
> + if (!crtc) {
> + DRM_DEBUG_KMS("Unknown CRTC ID %d\n", get_seq->crtc_id);
> return -ENOENT;
> + }
>
> pipe = drm_crtc_index(crtc);
>
> @@ -1874,8 +1876,10 @@ int drm_crtc_queue_sequence_ioctl(struct drm_device *dev, void *data,
> return -EINVAL;
>
> crtc = drm_crtc_find(dev, file_priv, queue_seq->crtc_id);
> - if (!crtc)
> + if (!crtc) {
> + DRM_DEBUG_KMS("Unknown CRTC ID %d\n", queue_seq->crtc_id);
> return -ENOENT;
> + }
>
> flags = queue_seq->flags;
> /* Check valid flag bits */
> --
> 2.19.2
>
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--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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