drm: Consolidate connector arrays in drm_atomic_state
It's kinda pointless to have 2 separate mallocs for these. And when we
add more per-connector state in the future it's even more pointless.
Right now there's no such thing planned, but both Gustavo's per-crtc
fence patches, and some nonblocking commit helpers I'm playing around
with will add more per-crtc stuff. It makes sense to also consolidate
connectors, just for consistency.
In the future we can use this to store a pointer to the preceeding
state, making an atomic update entirely free-standing. This will be
needed to be able to queue them up with a depth > 1.
Cc: Gustavo Padovan <gustavo@padovan.org>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1464818821-5736-10-git-send-email-daniel.vetter@ffwll.ch
diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index 3ff1ed7..a6395e9 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -44,7 +44,6 @@
void drm_atomic_state_default_release(struct drm_atomic_state *state)
{
kfree(state->connectors);
- kfree(state->connector_states);
kfree(state->crtcs);
kfree(state->crtc_states);
kfree(state->planes);
@@ -139,15 +138,15 @@
DRM_DEBUG_ATOMIC("Clearing atomic state %p\n", state);
for (i = 0; i < state->num_connector; i++) {
- struct drm_connector *connector = state->connectors[i];
+ struct drm_connector *connector = state->connectors[i].ptr;
if (!connector)
continue;
connector->funcs->atomic_destroy_state(connector,
- state->connector_states[i]);
- state->connectors[i] = NULL;
- state->connector_states[i] = NULL;
+ state->connectors[i].state);
+ state->connectors[i].ptr = NULL;
+ state->connectors[i].state = NULL;
drm_connector_unreference(connector);
}
@@ -896,8 +895,7 @@
index = drm_connector_index(connector);
if (index >= state->num_connector) {
- struct drm_connector **c;
- struct drm_connector_state **cs;
+ struct __drm_connnectors_state *c;
int alloc = max(index + 1, config->num_connector);
c = krealloc(state->connectors, alloc * sizeof(*state->connectors), GFP_KERNEL);
@@ -908,26 +906,19 @@
memset(&state->connectors[state->num_connector], 0,
sizeof(*state->connectors) * (alloc - state->num_connector));
- cs = krealloc(state->connector_states, alloc * sizeof(*state->connector_states), GFP_KERNEL);
- if (!cs)
- return ERR_PTR(-ENOMEM);
-
- state->connector_states = cs;
- memset(&state->connector_states[state->num_connector], 0,
- sizeof(*state->connector_states) * (alloc - state->num_connector));
state->num_connector = alloc;
}
- if (state->connector_states[index])
- return state->connector_states[index];
+ if (state->connectors[index].state)
+ return state->connectors[index].state;
connector_state = connector->funcs->atomic_duplicate_state(connector);
if (!connector_state)
return ERR_PTR(-ENOMEM);
drm_connector_reference(connector);
- state->connector_states[index] = connector_state;
- state->connectors[index] = connector;
+ state->connectors[index].state = connector_state;
+ state->connectors[index].ptr = connector;
connector_state->state = state;
DRM_DEBUG_ATOMIC("Added [CONNECTOR:%d] %p state to %p\n",
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index a1d9c24..b4e2e98 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -1572,7 +1572,7 @@
for_each_connector_in_state(state, connector, conn_state, i) {
connector->state->state = state;
- swap(state->connector_states[i], connector->state);
+ swap(state->connectors[i].state, connector->state);
connector->state->state = NULL;
}