From: Ville Syrjälä <ville.syrj...@linux.intel.com>
Print out the modeline when we reject a bad user mode. Avoids having to
guess why it was rejected.
Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
drivers/gpu/drm/drm_atomic.c | 20 +++++++++++++++++---
drivers/gpu/drm/drm_crtc.c | 4 +++-
drivers/gpu/drm/drm_crtc_internal.h | 3 +++
drivers/gpu/drm/drm_modes.c | 2 +-
4 files changed, 24 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index d7de83a6c1c2..5fe5e06062a9 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -400,10 +400,24 @@ int drm_atomic_set_mode_prop_for_crtc(struct
drm_crtc_state *state,
memset(&state->mode, 0, sizeof(state->mode));
if (blob) {
- if (blob->length != sizeof(struct drm_mode_modeinfo) ||
- drm_mode_convert_umode(state->crtc->dev, &state->mode,
- blob->data))
+ int ret;
+
+ if (blob->length != sizeof(struct drm_mode_modeinfo)) {
+ DRM_DEBUG_ATOMIC("[CRTC:%d:%s] bad mode blob length:
%zu\n",
+ crtc->base.id, crtc->name,
+ blob->length);
+ return -EINVAL;
+ }
+
+ ret = drm_mode_convert_umode(crtc->dev,
+ &state->mode, blob->data);
+ if (ret) {
+ DRM_DEBUG_ATOMIC("[CRTC:%d:%s] invalid mode (ret=%d,
status=%s):\n",
+ crtc->base.id, crtc->name,
+ ret,
drm_get_mode_status_name(state->mode.status));
+ drm_mode_debug_printmodeline(&state->mode);
return -EINVAL;
+ }
state->mode_blob = drm_property_blob_get(blob);
state->enable = true;
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 53828fc8d911..163d82ac7d76 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -649,7 +649,9 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
ret = drm_mode_convert_umode(dev, mode, &crtc_req->mode);
if (ret) {
- DRM_DEBUG_KMS("Invalid mode\n");
+ DRM_DEBUG_KMS("Invalid mode (ret=%d, status=%s)\n",
+ ret,
drm_get_mode_status_name(mode->status));
+ drm_mode_debug_printmodeline(mode);
goto out;
}
diff --git a/drivers/gpu/drm/drm_crtc_internal.h
b/drivers/gpu/drm/drm_crtc_internal.h
index 5d307b23a4e6..34499800932a 100644
--- a/drivers/gpu/drm/drm_crtc_internal.h
+++ b/drivers/gpu/drm/drm_crtc_internal.h
@@ -56,6 +56,9 @@ int drm_mode_setcrtc(struct drm_device *dev,
int drm_modeset_register_all(struct drm_device *dev);
void drm_modeset_unregister_all(struct drm_device *dev);
+/* drm_modes.c */
+const char *drm_get_mode_status_name(enum drm_mode_status status);
+
/* IOCTLs */
int drm_mode_getresources(struct drm_device *dev,
void *data, struct drm_file *file_priv);
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index c78ca0e84ffd..7f552d5fa88e 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -1257,7 +1257,7 @@ static const char * const drm_mode_status_names[] = {
#undef MODE_STATUS
-static const char *drm_get_mode_status_name(enum drm_mode_status status)
+const char *drm_get_mode_status_name(enum drm_mode_status status)
{
int index = status + 3;
--
2.16.4
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