From 69a8a1961c7bf59b70ec958f8a408ba448fe62a9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Thu, 5 Jul 2018 22:00:10 +0300
Subject: [PATCH] drm: Skip __drm_mode_set_config_internal() on atomic drivers
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Everything (apart from the actual ->set_config() call)
__drm_mode_set_config_internal() does is now useless on
atomic drivers. So let's just skip all the foreplay.
v2: Use drm_drv_uses_atomic_modeset() (Daniel)
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180705190010.19836-1-ville.syrjala@linux.intel.com
---
drivers/gpu/drm/drm_crtc.c | 15 ++++++++++-----
1 file changed, 10 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index a6906c4ab880f..bae43938c8f61 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -461,6 +461,8 @@ static int __drm_mode_set_config_internal(struct drm_mode_set *set,
struct drm_crtc *tmp;
int ret;
+ WARN_ON(drm_drv_uses_atomic_modeset(crtc->dev));
+
/*
* NOTE: ->set_config can also disable other crtcs (if we steal all
* connectors from it), hence we need to refcount the fbs across all
@@ -478,10 +480,8 @@ static int __drm_mode_set_config_internal(struct drm_mode_set *set,
if (ret == 0) {
struct drm_plane *plane = crtc->primary;
- if (!plane->state) {
- plane->crtc = fb ? crtc : NULL;
- plane->fb = fb;
- }
+ plane->crtc = fb ? crtc : NULL;
+ plane->fb = fb;
}
drm_for_each_crtc(tmp, crtc->dev) {
@@ -496,6 +496,7 @@ static int __drm_mode_set_config_internal(struct drm_mode_set *set,
return ret;
}
+
/**
* drm_mode_set_config_internal - helper to call &drm_mode_config_funcs.set_config
* @set: modeset config to set
@@ -740,7 +741,11 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
set.connectors = connector_set;
set.num_connectors = crtc_req->count_connectors;
set.fb = fb;
- ret = __drm_mode_set_config_internal(&set, &ctx);
+
+ if (drm_drv_uses_atomic_modeset(dev))
+ ret = crtc->funcs->set_config(&set, &ctx);
+ else
+ ret = __drm_mode_set_config_internal(&set, &ctx);
out:
if (fb)
--
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