diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2018-06-11 22:34:02 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2018-06-15 23:31:07 +0300 |
| commit | 6ab0edf4e79c42e3dc9c47e060a68d337af51be0 (patch) | |
| tree | 9b7d20d9499a18456281cf1fb5f7628ab74f717e | |
| parent | b6f690ab237d801cbf881be4bc164062727053fd (diff) | |
| download | linux-stable-6ab0edf4e79c42e3dc9c47e060a68d337af51be0.tar.gz linux-stable-6ab0edf4e79c42e3dc9c47e060a68d337af51be0.tar.bz2 linux-stable-6ab0edf4e79c42e3dc9c47e060a68d337af51be0.zip | |
drm: Print bad user modes
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.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180611193403.16118-2-ville.syrjala@linux.intel.com
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
| -rw-r--r-- | drivers/gpu/drm/drm_atomic.c | 20 | ||||
| -rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/drm_crtc_internal.h | 3 | ||||
| -rw-r--r-- | 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 0ae280aaa124..0fb25bfe381d 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -392,10 +392,24 @@ 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 @@ retry: 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; |