Tomasz, as you mentined in v2 about waiting the hardware before updating
the framebuffer, now I call the loop you pointed out in the async path,
was that what you had in mind? Or do you think I would make sense to
call the vop_crtc_atomic_flush() instead of just exposing that loop?
Thanks
Helen
Changes in v3:
- Rebased on top of drm-misc
- Fix missing include in rockchip_drm_vop.c
- New function vop_crtc_atomic_commit_flush
Changes in v2:
- v2: https://patchwork.freedesktop.org/patch/254180/
- Change the framebuffer as well to cover jumpy cursor when hovering
text boxes or hyperlink. (Tomasz)
- Use the PSR inhibit mechanism when accessing VOP hardware instead of
PSR flushing (Tomasz)
Changes in v1:
- Rebased on top of drm-misc
- In async_check call drm_atomic_helper_check_plane_state to check that
the desired plane is valid and update various bits of derived state
(clipped coordinates etc.)
- In async_check allow to configure new scaling in the fast path.
- In async_update force to flush all registered PSR encoders.
- In async_update call atomic_update directly.
- In async_update call vop_cfg_done needed to set the vop registers and take effect.
drivers/gpu/drm/rockchip/rockchip_drm_fb.c | 36 -------
drivers/gpu/drm/rockchip/rockchip_drm_psr.c | 37 +++++++
drivers/gpu/drm/rockchip/rockchip_drm_psr.h | 3 +
drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 108 +++++++++++++++++---
4 files changed, 131 insertions(+), 53 deletions(-)
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fb.c b/drivers/gpu/drm/rockchip/rockchip_drm_fb.c
index ea18cb2a76c0..08bec50d9c5d 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_fb.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_fb.c
@@ -127,42 +127,6 @@ rockchip_user_fb_create(struct drm_device *dev, struct drm_file *file_priv,
return ERR_PTR(ret);
}
-static void
-rockchip_drm_psr_inhibit_get_state(struct drm_atomic_state *state)
-{
- struct drm_crtc *crtc;
- struct drm_crtc_state *crtc_state;
- struct drm_encoder *encoder;
- u32 encoder_mask = 0;
- int i;
-
- for_each_old_crtc_in_state(state, crtc, crtc_state, i) {
- encoder_mask |= crtc_state->encoder_mask;
- encoder_mask |= crtc->state->encoder_mask;
- }
-
- drm_for_each_encoder_mask(encoder, state->dev, encoder_mask)
- rockchip_drm_psr_inhibit_get(encoder);
-}
-
-static void
-rockchip_drm_psr_inhibit_put_state(struct drm_atomic_state *state)
-{
- struct drm_crtc *crtc;
- struct drm_crtc_state *crtc_state;
- struct drm_encoder *encoder;
- u32 encoder_mask = 0;
- int i;
-
- for_each_old_crtc_in_state(state, crtc, crtc_state, i) {
- encoder_mask |= crtc_state->encoder_mask;
- encoder_mask |= crtc->state->encoder_mask;
- }
-
- drm_for_each_encoder_mask(encoder, state->dev, encoder_mask)
- rockchip_drm_psr_inhibit_put(encoder);
-}
-
static void
rockchip_atomic_helper_commit_tail_rpm(struct drm_atomic_state *old_state)
{
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_psr.c b/drivers/gpu/drm/rockchip/rockchip_drm_psr.c
index 01ff3c858875..22a70ab6e214 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_psr.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_psr.c
@@ -13,6 +13,7 @@
*/
#include <drm/drmP.h>
+#include <drm/drm_atomic.h>
#include <drm/drm_crtc_helper.h>
#include "rockchip_drm_drv.h"
@@ -109,6 +110,42 @@ int rockchip_drm_psr_inhibit_put(struct drm_encoder *encoder)
}
EXPORT_SYMBOL(rockchip_drm_psr_inhibit_put);
+void rockchip_drm_psr_inhibit_get_state(struct drm_atomic_state *state)
+{
+ struct drm_crtc *crtc;
+ struct drm_crtc_state *crtc_state;
+ struct drm_encoder *encoder;
+ u32 encoder_mask = 0;
+ int i;
+
+ for_each_old_crtc_in_state(state, crtc, crtc_state, i) {
+ encoder_mask |= crtc_state->encoder_mask;
+ encoder_mask |= crtc->state->encoder_mask;
+ }
+
+ drm_for_each_encoder_mask(encoder, state->dev, encoder_mask)
+ rockchip_drm_psr_inhibit_get(encoder);
+}
+EXPORT_SYMBOL(rockchip_drm_psr_inhibit_get_state);
+
+void rockchip_drm_psr_inhibit_put_state(struct drm_atomic_state *state)
+{
+ struct drm_crtc *crtc;
+ struct drm_crtc_state *crtc_state;
+ struct drm_encoder *encoder;
+ u32 encoder_mask = 0;
+ int i;
+
+ for_each_old_crtc_in_state(state, crtc, crtc_state, i) {
+ encoder_mask |= crtc_state->encoder_mask;
+ encoder_mask |= crtc->state->encoder_mask;
+ }
+
+ drm_for_each_encoder_mask(encoder, state->dev, encoder_mask)
+ rockchip_drm_psr_inhibit_put(encoder);
+}
+EXPORT_SYMBOL(rockchip_drm_psr_inhibit_put_state);
+
/**
* rockchip_drm_psr_inhibit_get - acquire PSR inhibit on given encoder
* @encoder: encoder to obtain the PSR encoder
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_psr.h b/drivers/gpu/drm/rockchip/rockchip_drm_psr.h
index 860c62494496..25350ba3237b 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_psr.h
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_psr.h
@@ -20,6 +20,9 @@ void rockchip_drm_psr_flush_all(struct drm_device *dev);
int rockchip_drm_psr_inhibit_put(struct drm_encoder *encoder);
int rockchip_drm_psr_inhibit_get(struct drm_encoder *encoder);
+void rockchip_drm_psr_inhibit_get_state(struct drm_atomic_state *state);
+void rockchip_drm_psr_inhibit_put_state(struct drm_atomic_state *state);
+
int rockchip_drm_psr_register(struct drm_encoder *encoder,
int (*psr_set)(struct drm_encoder *, bool enable));
void rockchip_drm_psr_unregister(struct drm_encoder *encoder);
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index fb70fb486fbf..176d6e8207ed 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -15,6 +15,7 @@
#include <drm/drm.h>
#include <drm/drmP.h>
#include <drm/drm_atomic.h>
+#include <drm/drm_atomic_uapi.h>
#include <drm/drm_crtc.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_flip_work.h>
@@ -819,10 +820,99 @@ static void vop_plane_atomic_update(struct drm_plane *plane,
spin_unlock(&vop->reg_lock);
}
+static int vop_plane_atomic_async_check(struct drm_plane *plane,
+ struct drm_plane_state *state)
+{
+ struct vop_win *vop_win = to_vop_win(plane);
+ const struct vop_win_data *win = vop_win->data;
+ int min_scale = win->phy->scl ? FRAC_16_16(1, 8) :
+ DRM_PLANE_HELPER_NO_SCALING;
+ int max_scale = win->phy->scl ? FRAC_16_16(8, 1) :
+ DRM_PLANE_HELPER_NO_SCALING;
+ struct drm_crtc_state *crtc_state;
+ int ret;
+
+ if (plane != state->crtc->cursor)
+ return -EINVAL;
+
+ if (!plane->state)
+ return -EINVAL;
+
+ if (!plane->state->fb)
+ return -EINVAL;
+
+ if (state->state)
+ crtc_state = drm_atomic_get_existing_crtc_state(state->state,
+ state->crtc);
+ else /* Special case for asynchronous cursor updates. */
+ crtc_state = plane->crtc->state;
+
+ ret = drm_atomic_helper_check_plane_state(plane->state,
+ crtc_state,
+ min_scale, max_scale,
+ true, true);
+ return ret;
+}
+
+static void vop_crtc_atomic_commit_flush(struct drm_crtc *crtc,
+ struct drm_crtc_state *old_crtc_state)
+{
+ struct drm_atomic_state *old_state = old_crtc_state->state;
+ struct drm_plane_state *old_plane_state, *new_plane_state;
+ struct vop *vop = to_vop(crtc);
+ struct drm_plane *plane;
+ int i;
+
+ for_each_oldnew_plane_in_state(old_state, plane, old_plane_state,
+ new_plane_state, i) {
