This connects the main state object check and commit function.
Signed-off-by: Sinclair Yeh <s...@vmware.com>
Signed-off-by: Thomas Hellstrom <thellst...@vmware.com>
Reviewed-by: Thomas Hellstrom <thellst...@vmware.com>
---
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 66 +++++++++++++++++++++++++++++++++++++
1 file changed, 66 insertions(+)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 2250a34a..6b593aaf 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -1581,8 +1581,74 @@ static struct drm_framebuffer *vmw_kms_fb_create(struct
drm_device *dev,
return &vfb->base;
}
+
+
+/**
+ * vmw_kms_atomic_check_modeset- validate state object for modeset changes
+ *
+ * @dev: DRM device
+ * @state: the driver state object
+ *
+ * This is a simple wrapper around drm_atomic_helper_check_modeset() for
+ * us to assign a value to mode->crtc_clock so that
+ * drm_calc_timestamping_constants() won't throw an error message
+ *
+ * RETURNS
+ * Zero for success or -errno
+ */
+int
+vmw_kms_atomic_check_modeset(struct drm_device *dev,
+ struct drm_atomic_state *state)
+{
+ struct drm_crtc_state *crtc_state;
+ struct drm_crtc *crtc;
+ int i, ret;
+
+
+ for_each_crtc_in_state(state, crtc, crtc_state, i) {
+ if (crtc_state->mode.crtc_clock == 0) {
+ /*
+ * Our virtual device does not have a dot clock,
+ * so use the logical clock value as the dot clock.
+ */
+ crtc_state->mode.crtc_clock = crtc_state->mode.clock;
+ }
+ }
+
+ ret = drm_atomic_helper_check_modeset(dev, state);
+ if (ret)
+ return ret;
+
+ return drm_atomic_helper_check_planes(dev, state);
+}
+
+
+/**
+ * vmw_kms_atomic_commit - Perform an atomic state commit
+ *
+ * @dev: DRM device
+ * @state: the driver state object
+ * @nonblock: Whether nonblocking behaviour is requested
+ *
+ * This is a simple wrapper around drm_atomic_helper_commit() for
+ * us to clear the nonblocking value.
+ * Nonblocking commits should avoid waiting on GPU completion to return.
+ * That is always the case for us.
+ *
+ * RETURNS
+ * Zero for success or negative error code on failure.
+ */
+int vmw_kms_atomic_commit(struct drm_device *dev,
+ struct drm_atomic_state *state,
+ bool nonblock)
+{
+ return drm_atomic_helper_commit(dev, state, false);
+}
+
static const struct drm_mode_config_funcs vmw_kms_funcs = {
.fb_create = vmw_kms_fb_create,
+ .atomic_check = vmw_kms_atomic_check_modeset,
+ .atomic_commit = vmw_kms_atomic_commit,
};
static int vmw_kms_generic_present(struct vmw_private *dev_priv,
--
2.7.4
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