drm_modeset_lock_all() is not needed here, so it is replaced with
drm_modeset_lock(). The crtc list around which we are looping never
changes, therefore the only lock we need is to protect access to
crtc->state.
Suggested-by: Daniel Vetter <daniel@xxxxxxxx>
Suggested-by: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@xxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 671ec1002230..bce8f6793d8e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -1439,17 +1439,16 @@ static int amdgpu_pmops_runtime_idle(struct device *dev)
if (amdgpu_device_has_dc_support(adev)) {
struct drm_crtc *crtc;
- drm_modeset_lock_all(drm_dev);
-
drm_for_each_crtc(crtc, drm_dev) {
+ drm_modeset_lock(&crtc->mutex, NULL);
if (crtc->state->active) {
ret = -EBUSY;
- break;
}
+ drm_modeset_unlock(&crtc->mutex);
+ if (ret < 0)
+ break;
}
- drm_modeset_unlock_all(drm_dev);
-
} else {
struct drm_connector *list_connector;
struct drm_connector_list_iter iter;
--
2.31.1
_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/dri-devel
