Switch the primary plane away from the transitional helpers, and
use the atomic helpers instead to implement the legacy set_plane
ioctl call for this plane.
Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/armada/armada_crtc.c | 116 +---------------------------------
drivers/gpu/drm/armada/armada_plane.c | 4 +-
2 files changed, 3 insertions(+), 117 deletions(-)
diff --git a/drivers/gpu/drm/armada/armada_crtc.c b/drivers/gpu/drm/armada/armada_crtc.c
index 0cef40ad3a06..a25094bbeb2c 100644
--- a/drivers/gpu/drm/armada/armada_crtc.c
+++ b/drivers/gpu/drm/armada/armada_crtc.c
@@ -191,34 +191,6 @@ void armada_drm_plane_work_cancel(struct armada_crtc *dcrtc,
armada_drm_plane_work_call(dcrtc, work, work->cancel);
}
-static void armada_drm_crtc_complete_frame_work(struct armada_crtc *dcrtc,
- struct armada_plane_work *work)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&dcrtc->irq_lock, flags);
- armada_drm_crtc_update_regs(dcrtc, work->regs);
- spin_unlock_irqrestore(&dcrtc->irq_lock, flags);
-}
-
-static struct armada_plane_work *
-armada_drm_crtc_alloc_plane_work(struct drm_plane *plane)
-{
- struct armada_plane_work *work;
- int i = 0;
-
- work = kzalloc(sizeof(*work), GFP_KERNEL);
- if (!work)
- return NULL;
-
- work->plane = plane;
- work->fn = armada_drm_crtc_complete_frame_work;
- work->need_kfree = true;
- armada_reg_queue_end(work->regs, i);
-
- return work;
-}
-
static void armada_drm_crtc_queue_state_event(struct drm_crtc *crtc)
{
struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
@@ -318,9 +290,6 @@ static void armada_drm_crtc_irq(struct armada_crtc *dcrtc, u32 stat)
spin_unlock(&dcrtc->irq_lock);
- if (stat & GRA_FRAME_IRQ)
- armada_drm_plane_work_run(dcrtc, dcrtc->crtc.primary);
-
if (stat & VSYNC_IRQ) {
event = xchg(&dcrtc->event, NULL);
if (event) {
@@ -459,15 +428,9 @@ static void armada_drm_crtc_atomic_begin(struct drm_crtc *crtc,
struct drm_crtc_state *old_crtc_state)
{
struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
- struct armada_plane *dplane;
DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name);
- /* Wait 100ms for any plane works to complete */
- dplane = drm_to_armada_plane(crtc->primary);
- if (WARN_ON(armada_drm_plane_work_wait(dplane, HZ / 10) == 0))
- armada_drm_plane_work_cancel(dcrtc, dplane);
-
dcrtc->regs_idx = 0;
dcrtc->regs = dcrtc->atomic_regs;
}
@@ -511,8 +474,6 @@ static void armada_drm_crtc_atomic_disable(struct drm_crtc *crtc,
if (plane)
WARN_ON(!armada_drm_plane_work_wait(drm_to_armada_plane(plane),
HZ));
- armada_drm_plane_work_wait(drm_to_armada_plane(dcrtc->crtc.primary),
- MAX_SCHEDULE_TIMEOUT);
drm_crtc_vblank_off(crtc);
armada_drm_crtc_update(dcrtc, false);
@@ -802,81 +763,6 @@ static void armada_drm_crtc_destroy(struct drm_crtc *crtc)
kfree(dcrtc);
}
-/*
- * The mode_config lock is held here, to prevent races between this
- * and a mode_set.
- */
-static int armada_drm_crtc_page_flip(struct drm_crtc *crtc,
- struct drm_framebuffer *fb, struct drm_pending_vblank_event *event,
- uint32_t page_flip_flags, struct drm_modeset_acquire_ctx *ctx)
-{
- struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
- struct drm_plane *plane = crtc->primary;
- const struct drm_plane_helper_funcs *plane_funcs;
- struct drm_plane_state *state;
- struct armada_plane_work *work;
- int ret;
-
- /* Construct new state for the primary plane */
- state = drm_atomic_helper_plane_duplicate_state(plane);
- if (!state)
- return -ENOMEM;
-
- drm_atomic_set_fb_for_plane(state, fb);
-
- work = armada_drm_crtc_alloc_plane_work(plane);
- if (!work) {
- ret = -ENOMEM;
- goto put_state;
- }
-
- /* Make sure we can get vblank interrupts */
- ret = drm_crtc_vblank_get(crtc);
- if (ret)
- goto put_work;
-
- /*
- * If we have another work pending, we can't process this flip.
- * The modeset locks protect us from another user queuing a work
- * while we're setting up.
- */
- if (drm_to_armada_plane(plane)->work) {
- ret = -EBUSY;
- goto put_vblank;
- }
-
- work->event = event;
- work->old_fb = plane->state->fb;
-
- /*
- * Hold a ref on the new fb while it's being displayed by the
- * hardware. The old fb refcount will be released in the worker.
- */
- drm_framebuffer_get(state->fb);
-
- /* Point of no return */
- swap(plane->state, state);
-
- dcrtc->regs_idx = 0;
- dcrtc->regs = work->regs;
-
- plane_funcs = plane->helper_private;
- plane_funcs->atomic_update(plane, state);
- armada_reg_queue_end(dcrtc->regs, dcrtc->regs_idx);
-
- /* Queue the work - this should never fail */
- WARN_ON(armada_drm_plane_work_queue(dcrtc, work));
- work = NULL;
-
-put_vblank:
- drm_crtc_vblank_put(crtc);
-put_work:
- kfree(work);
-put_state:
- drm_atomic_helper_plane_destroy_state(plane, state);
- return ret;
-}
-
/* These are called under the vbl_lock. */
static int armada_drm_crtc_enable_vblank(struct drm_crtc *crtc)
{
@@ -905,7 +791,7 @@ static const struct drm_crtc_funcs armada_crtc_funcs = {
.cursor_move = armada_drm_crtc_cursor_move,
.destroy = armada_drm_crtc_destroy,
.set_config = drm_atomic_helper_set_config,
- .page_flip = armada_drm_crtc_page_flip,
+ .page_flip = drm_atomic_helper_page_flip,
.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
.enable_vblank = armada_drm_crtc_enable_vblank,
diff --git a/drivers/gpu/drm/armada/armada_plane.c b/drivers/gpu/drm/armada/armada_plane.c
index 1320fec4c386..39c9ba3ee57e 100644
--- a/drivers/gpu/drm/armada/armada_plane.c
+++ b/drivers/gpu/drm/armada/armada_plane.c
@@ -261,8 +261,8 @@ static const struct drm_plane_helper_funcs armada_primary_plane_helper_funcs = {
};
static const struct drm_plane_funcs armada_primary_plane_funcs = {
- .update_plane = drm_plane_helper_update,
- .disable_plane = drm_plane_helper_disable,
+ .update_plane = drm_atomic_helper_update_plane,
+ .disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_primary_helper_destroy,
.reset = drm_atomic_helper_plane_reset,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
--
2.7.4
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