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drm/vmwgfx: Perform memory validations only when need full modeset. 

For cases when full modeset is not requested like page-flip, skip
memory validation as the topology is not changed.

Signed-off-by: Deepak Rawat <drawat@vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
This commit is contained in:
Deepak Rawat 2018-06-20 11:23:55 +02:00 committed by Thomas Hellstrom
parent 5e24133ea3
commit 7e14eabca8
1 changed files with 21 additions and 2 deletions
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23
drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
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@ -1670,13 +1670,32 @@ static int
vmw_kms_atomic_check_modeset(struct drm_device *dev,
struct drm_atomic_state *state)
{
int ret;
struct drm_crtc *crtc;
struct drm_crtc_state *crtc_state;
bool need_modeset = false;
int i, ret;
ret = drm_atomic_helper_check(dev, state);
if (ret)
return ret;
return vmw_kms_check_topology(dev, state);
if (!state->allow_modeset)
return ret;
/*
* Legacy path do not set allow_modeset properly like
* @drm_atomic_helper_update_plane, This will result in unnecessary call
* to vmw_kms_check_topology. So extra set of check.
*/
for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
if (drm_atomic_crtc_needs_modeset(crtc_state))
need_modeset = true;
}
if (need_modeset)
return vmw_kms_check_topology(dev, state);
return ret;
}
static const struct drm_mode_config_funcs vmw_kms_funcs = {