I got confused every time I audited what that lock_all is doing in
there until realizing it's for legacy kms only. Make that a notch more
obvious by having 2 entirely different paths.
While at it also move the atomic version of this into
drm_framebuffer.c, there's no reason it needs to be in drm_atomic.c.
That way it becomes a simple static function.
Signed-off-by: Daniel Vetter <daniel.vet...@intel.com>
---
drivers/gpu/drm/drm_atomic.c | 88 -----------------------
drivers/gpu/drm/drm_crtc_internal.h | 1 -
drivers/gpu/drm/drm_framebuffer.c | 137 ++++++++++++++++++++++++++++++------
3 files changed, 115 insertions(+), 111 deletions(-)
diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index 9afb14371ce0..f32506a7c1d6 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -2081,94 +2081,6 @@ static void complete_crtc_signaling(struct drm_device
*dev,
kfree(fence_state);
}
-int drm_atomic_remove_fb(struct drm_framebuffer *fb)
-{
- struct drm_modeset_acquire_ctx ctx;
- struct drm_device *dev = fb->dev;
- struct drm_atomic_state *state;
- struct drm_plane *plane;
- struct drm_connector *conn;
- struct drm_connector_state *conn_state;
- int i, ret = 0;
- unsigned plane_mask;
-
- state = drm_atomic_state_alloc(dev);
- if (!state)
- return -ENOMEM;
-
- drm_modeset_acquire_init(&ctx, 0);
- state->acquire_ctx = &ctx;
-
-retry:
- plane_mask = 0;
- ret = drm_modeset_lock_all_ctx(dev, &ctx);
- if (ret)
- goto unlock;
-
- drm_for_each_plane(plane, dev) {
- struct drm_plane_state *plane_state;
-
- if (plane->state->fb != fb)
- continue;
-
- plane_state = drm_atomic_get_plane_state(state, plane);
- if (IS_ERR(plane_state)) {
- ret = PTR_ERR(plane_state);
- goto unlock;
- }
-
- if (plane_state->crtc->primary == plane) {
- struct drm_crtc_state *crtc_state;
-
- crtc_state = drm_atomic_get_existing_crtc_state(state,
plane_state->crtc);
-
- ret = drm_atomic_add_affected_connectors(state,
plane_state->crtc);
- if (ret)
- goto unlock;
-
- crtc_state->active = false;
- ret = drm_atomic_set_mode_for_crtc(crtc_state, NULL);
- if (ret)
- goto unlock;
- }
-
- drm_atomic_set_fb_for_plane(plane_state, NULL);
- ret = drm_atomic_set_crtc_for_plane(plane_state, NULL);
- if (ret)
- goto unlock;
-
- plane_mask |= BIT(drm_plane_index(plane));
-
- plane->old_fb = plane->fb;
- }
-
- for_each_connector_in_state(state, conn, conn_state, i) {
- ret = drm_atomic_set_crtc_for_connector(conn_state, NULL);
-
- if (ret)
- goto unlock;
- }
-
- if (plane_mask)
- ret = drm_atomic_commit(state);
-
-unlock:
- if (plane_mask)
- drm_atomic_clean_old_fb(dev, plane_mask, ret);
-
- if (ret == -EDEADLK) {
- drm_modeset_backoff(&ctx);
- goto retry;
- }
-
- drm_atomic_state_put(state);
-
- drm_modeset_drop_locks(&ctx);
- drm_modeset_acquire_fini(&ctx);
-
- return ret;
-}
-
int drm_mode_atomic_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv)
{
diff --git a/drivers/gpu/drm/drm_crtc_internal.h
b/drivers/gpu/drm/drm_crtc_internal.h
index 8c04275cf226..d077c5490041 100644
--- a/drivers/gpu/drm/drm_crtc_internal.h
+++ b/drivers/gpu/drm/drm_crtc_internal.h
@@ -182,7 +182,6 @@ int drm_atomic_get_property(struct drm_mode_object *obj,
struct drm_property *property, uint64_t *val);
int drm_mode_atomic_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
-int drm_atomic_remove_fb(struct drm_framebuffer *fb);
/* drm_plane.c */
diff --git a/drivers/gpu/drm/drm_framebuffer.c
b/drivers/gpu/drm/drm_framebuffer.c
index e8f9c13a0afd..fc8ef42203ec 100644
--- a/drivers/gpu/drm/drm_framebuffer.c
+++ b/drivers/gpu/drm/drm_framebuffer.c
@@ -24,6 +24,7 @@
#include <drm/drmP.h>
#include <drm/drm_auth.h>
#include <drm/drm_framebuffer.h>
+#include <drm/drm_atomic.h>
#include "drm_crtc_internal.h"
@@ -755,6 +756,117 @@ void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
}
EXPORT_SYMBOL(drm_framebuffer_cleanup);
+static int atomic_remove_fb(struct drm_framebuffer *fb)
+{
+ struct drm_modeset_acquire_ctx ctx;
+ struct drm_device *dev = fb->dev;
+ struct drm_atomic_state *state;
+ struct drm_plane *plane;
+ struct drm_connector *conn;
+ struct drm_connector_state *conn_state;
+ int i, ret = 0;
+ unsigned plane_mask;
+
+ state = drm_atomic_state_alloc(dev);
+ if (!state)
+ return -ENOMEM;
+
+ drm_modeset_acquire_init(&ctx, 0);
+ state->acquire_ctx = &ctx;
+
+retry:
+ plane_mask = 0;
+ ret = drm_modeset_lock_all_ctx(dev, &ctx);
+ if (ret)
+ goto unlock;
+
+ drm_for_each_plane(plane, dev) {
+ struct drm_plane_state *plane_state;
+
+ if (plane->state->fb != fb)
+ continue;
+
+ plane_state = drm_atomic_get_plane_state(state, plane);
+ if (IS_ERR(plane_state)) {
+ ret = PTR_ERR(plane_state);
+ goto unlock;
+ }
+
+ if (plane_state->crtc->primary == plane) {
+ struct drm_crtc_state *crtc_state;
+
+ crtc_state = drm_atomic_get_existing_crtc_state(state,
plane_state->crtc);
+
+ ret = drm_atomic_add_affected_connectors(state,
plane_state->crtc);
+ if (ret)
+ goto unlock;
+
+ crtc_state->active = false;
+ ret = drm_atomic_set_mode_for_crtc(crtc_state, NULL);
+ if (ret)
+ goto unlock;
+ }
+
+ drm_atomic_set_fb_for_plane(plane_state, NULL);
+ ret = drm_atomic_set_crtc_for_plane(plane_state, NULL);
+ if (ret)
+ goto unlock;
+
+ plane_mask |= BIT(drm_plane_index(plane));
+
+ plane->old_fb = plane->fb;
+ }
+
+ for_each_connector_in_state(state, conn, conn_state, i) {
+ ret = drm_atomic_set_crtc_for_connector(conn_state, NULL);
+
+ if (ret)
+ goto unlock;
+ }
+
+ if (plane_mask)
+ ret = drm_atomic_commit(state);
+
+unlock:
+ if (plane_mask)
+ drm_atomic_clean_old_fb(dev, plane_mask, ret);
+
+ if (ret == -EDEADLK) {
+ drm_modeset_backoff(&ctx);
+ goto retry;
+ }
+
+ drm_atomic_state_put(state);
+
+ drm_modeset_drop_locks(&ctx);
+ drm_modeset_acquire_fini(&ctx);
+
+ return ret;
+}
+
+static void legacy_remove_fb(struct drm_framebuffer *fb)
+{
+ struct drm_device *dev = fb->dev;
+ struct drm_crtc *crtc;
+ struct drm_plane *plane;
+
+ drm_modeset_lock_all(dev);
+ /* remove from any CRTC */
+ drm_for_each_crtc(crtc, dev) {
+ if (crtc->primary->fb == fb) {
+ /* should turn off the crtc */
+ if (drm_crtc_force_disable(crtc))
+ DRM_ERROR("failed to reset crtc %p when fb was
deleted\n", crtc);
+ }
+ }
+
+ drm_for_each_plane(plane, dev) {
+ if (plane->fb == fb)
+ drm_plane_force_disable(plane);
+ }
+ drm_modeset_unlock_all(dev);
+}
+
/**
* drm_framebuffer_remove - remove and unreference a framebuffer object
* @fb: framebuffer to remove
@@ -770,8 +882,6 @@ EXPORT_SYMBOL(drm_framebuffer_cleanup);
void drm_framebuffer_remove(struct drm_framebuffer *fb)
{
struct drm_device *dev;
- struct drm_crtc *crtc;
- struct drm_plane *plane;
if (!fb)
return;
@@ -797,29 +907,12 @@ void drm_framebuffer_remove(struct drm_framebuffer *fb)
*/
if (drm_framebuffer_read_refcount(fb) > 1) {
if (drm_drv_uses_atomic_modeset(dev)) {
- int ret = drm_atomic_remove_fb(fb);
+ int ret = atomic_remove_fb(fb);
WARN(ret, "atomic remove_fb failed with %i\n", ret);
- goto out;
- }
-
- drm_modeset_lock_all(dev);
- /* remove from any CRTC */
- drm_for_each_crtc(crtc, dev) {
- if (crtc->primary->fb == fb) {
- /* should turn off the crtc */
- if (drm_crtc_force_disable(crtc))
- DRM_ERROR("failed to reset crtc %p when
fb was deleted\n", crtc);
- }
- }
-
- drm_for_each_plane(plane, dev) {
- if (plane->fb == fb)
- drm_plane_force_disable(plane);
- }
- drm_modeset_unlock_all(dev);
+ } else
+ legacy_remove_fb(fb);
}
-out:
drm_framebuffer_put(fb);
}
EXPORT_SYMBOL(drm_framebuffer_remove);
--
2.11.0
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