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 Signed-off-by: Daniel Vetter daniel.vetter@intel.com --- drivers/gpu/drm/drm_atomic.c | 27 +++++++++------------------ drivers/gpu/drm/drm_atomic_helper.c | 2 +- include/drm/drm_atomic.h | 10 +++++----- include/drm/drm_crtc.h | 11 +++++++---- 4 files changed, 22 insertions(+), 28 deletions(-)
diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 3ff1ed7b33db..a6395e9654af 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 @@ void drm_atomic_state_default_clear(struct drm_atomic_state *state) 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 @@ drm_atomic_get_connector_state(struct drm_atomic_state *state, 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 @@ drm_atomic_get_connector_state(struct drm_atomic_state *state, 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 464541c87c40..0fb4868fdad6 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -1567,7 +1567,7 @@ void drm_atomic_helper_swap_state(struct drm_device *dev,
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; }
diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h index 4e97186293be..37478adb6a16 100644 --- a/include/drm/drm_atomic.h +++ b/include/drm/drm_atomic.h @@ -106,7 +106,7 @@ drm_atomic_get_existing_connector_state(struct drm_atomic_state *state, if (index >= state->num_connector) return NULL;
- return state->connector_states[index]; + return state->connectors[index].state; }
/** @@ -175,11 +175,11 @@ int __must_check drm_atomic_check_only(struct drm_atomic_state *state); int __must_check drm_atomic_commit(struct drm_atomic_state *state); int __must_check drm_atomic_nonblocking_commit(struct drm_atomic_state *state);
-#define for_each_connector_in_state(state, connector, connector_state, __i) \ +#define for_each_connector_in_state(__state, connector, connector_state, __i) \ for ((__i) = 0; \ - (__i) < (state)->num_connector && \ - ((connector) = (state)->connectors[__i], \ - (connector_state) = (state)->connector_states[__i], 1); \ + (__i) < (__state)->num_connector && \ + ((connector) = (__state)->connectors[__i].ptr, \ + (connector_state) = (__state)->connectors[__i].state, 1); \ (__i)++) \ for_each_if (connector)
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 5bffb5c86ea8..d4c46bfe4142 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -1694,6 +1694,11 @@ struct drm_bridge { void *driver_private; };
+struct __drm_connnectors_state { + struct drm_connector *ptr; + struct drm_connector_state *state; +}; + /** * struct drm_atomic_state - the global state object for atomic updates * @dev: parent DRM device @@ -1705,8 +1710,7 @@ struct drm_bridge { * @crtcs: pointer to array of CRTC pointers * @crtc_states: pointer to array of CRTC states pointers * @num_connector: size of the @connectors and @connector_states arrays - * @connectors: pointer to array of connector pointers - * @connector_states: pointer to array of connector states pointers + * @connectors: pointer to array of structures with per-connector data * @acquire_ctx: acquire context for this atomic modeset state update */ struct drm_atomic_state { @@ -1719,8 +1723,7 @@ struct drm_atomic_state { struct drm_crtc **crtcs; struct drm_crtc_state **crtc_states; int num_connector; - struct drm_connector **connectors; - struct drm_connector_state **connector_states; + struct __drm_connnectors_state *connectors;
struct drm_modeset_acquire_ctx *acquire_ctx; };