From 1dfdb0e107dbe6ebff3f6bbbe4aad0b5aa87bba4 Mon Sep 17 00:00:00 2001 From: Sean Paul Date: Fri, 16 Nov 2018 13:42:26 -0500 Subject: drm/msm: dpu: Add modeset lock checks where applicable Add modeset lock checks to functions that could be called outside the core atomic stack. Changes in v2: - None Reviewed-by: Jeykumar Sankaran Signed-off-by: Sean Paul Signed-off-by: Rob Clark --- drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 2 ++ drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 1 + 2 files changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c index 5745d46a7858..28465063e345 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c @@ -284,6 +284,8 @@ enum dpu_intf_mode dpu_crtc_get_intf_mode(struct drm_crtc *crtc) return INTF_MODE_NONE; } + WARN_ON(!drm_modeset_is_locked(&crtc->mutex)); + /* TODO: Returns the first INTF_MODE, could there be multiple values? */ drm_for_each_encoder_mask(encoder, crtc->dev, crtc->state->encoder_mask) return dpu_encoder_get_intf_mode(encoder); diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c index 7085cde868be..fe98a39eaae5 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c @@ -358,6 +358,7 @@ void dpu_kms_encoder_enable(struct drm_encoder *encoder) if (funcs && funcs->commit) funcs->commit(encoder); + WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex)); drm_for_each_crtc(crtc, dev) { if (!(crtc->state->encoder_mask & drm_encoder_mask(encoder))) continue; -- cgit v1.2.3