Messages in this thread Patch in this message | | | From | "Fabio M. De Francesco" <> | Subject | [PATCH v3] drm/amd/amdgpu: Replace drm_modeset_lock_all with drm_modeset_lock | Date | Mon, 26 Apr 2021 21:19:52 +0200 |
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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@ffwll.ch> Suggested-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com> Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org> ---
Changes from v2: Drop file name from the Subject. Cc'ed all maintainers. Changes from v1: Removed unnecessary braces around single statement block.
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 671ec1002230..adfeec2b17c0 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -1439,17 +1439,15 @@ 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) { - if (crtc->state->active) { + drm_modeset_lock(&crtc->mutex, NULL); + if (crtc->state->active) ret = -EBUSY; + 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
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