[PATCH V5 1/2] drm/vkms: Refactor vkms_composer_worker() to prep for virtual_hw mode
Sumera Priyadarsini
sylphrenadin at gmail.com
Sun Aug 1 16:03:00 UTC 2021
Add a new function vkms_composer_common(). The actual plane
composition work has been moved to the helper function,
vkms_composer_common() which is called by vkms_composer_worker()
and will be called in the implementation of virtual_hw mode
as well.
Signed-off-by: Sumera Priyadarsini <sylphrenadin at gmail.com>
---
Changes in V5:
- Move vkms_crtc_composer() to the patch that introduces
virtual_hw mode (Melissa)
- Fix checkpatch errors(Melissa)
Changes in V4:
- Fix warning
Changes in V3:
- Refactor patchset (Melissa)
Change in V2:
- Add vkms_composer_common() (Daniel)
---
drivers/gpu/drm/vkms/vkms_composer.c | 76 ++++++++++++++++------------
drivers/gpu/drm/vkms/vkms_drv.h | 2 +
2 files changed, 45 insertions(+), 33 deletions(-)
diff --git a/drivers/gpu/drm/vkms/vkms_composer.c b/drivers/gpu/drm/vkms/vkms_composer.c
index ead8fff81f30..bf3d576db225 100644
--- a/drivers/gpu/drm/vkms/vkms_composer.c
+++ b/drivers/gpu/drm/vkms/vkms_composer.c
@@ -206,6 +206,47 @@ static int compose_active_planes(void **vaddr_out,
return 0;
}
+int vkms_composer_common(struct vkms_crtc_state *crtc_state,
+ struct vkms_output *out, bool wb_pending, uint32_t *crc32)
+{
+ struct vkms_composer *primary_composer = NULL;
+ struct vkms_plane_state *act_plane = NULL;
+ void *vaddr_out = NULL;
+ int ret;
+
+ if (crtc_state->num_active_planes >= 1) {
+ act_plane = crtc_state->active_planes[0];
+ if (act_plane->base.base.plane->type == DRM_PLANE_TYPE_PRIMARY)
+ primary_composer = act_plane->composer;
+ }
+
+ if (!primary_composer)
+ return -EINVAL;
+ if (wb_pending)
+ vaddr_out = crtc_state->active_writeback;
+
+ ret = compose_active_planes(&vaddr_out, primary_composer, crtc_state);
+
+ if (ret) {
+ if ((ret == -EINVAL || ret == -ENOMEM) && !wb_pending)
+ kfree(vaddr_out);
+ return ret;
+ }
+
+ *crc32 = compute_crc(vaddr_out, primary_composer);
+
+ if (wb_pending) {
+ drm_writeback_signal_completion(&out->wb_connector, 0);
+ spin_lock_irq(&out->composer_lock);
+ crtc_state->wb_pending = false;
+ spin_unlock_irq(&out->composer_lock);
+ } else {
+ kfree(vaddr_out);
+ }
+
+ return 0;
+}
+
/**
* vkms_composer_worker - ordered work_struct to compute CRC
*
@@ -222,10 +263,7 @@ void vkms_composer_worker(struct work_struct *work)
composer_work);
struct drm_crtc *crtc = crtc_state->base.crtc;
struct vkms_output *out = drm_crtc_to_vkms_output(crtc);
- struct vkms_composer *primary_composer = NULL;
- struct vkms_plane_state *act_plane = NULL;
bool crc_pending, wb_pending;
- void *vaddr_out = NULL;
u32 crc32 = 0;
u64 frame_start, frame_end;
int ret;
@@ -247,37 +285,9 @@ void vkms_composer_worker(struct work_struct *work)
if (!crc_pending)
return;
- if (crtc_state->num_active_planes >= 1) {
- act_plane = crtc_state->active_planes[0];
- if (act_plane->base.base.plane->type == DRM_PLANE_TYPE_PRIMARY)
- primary_composer = act_plane->composer;
- }
-
- if (!primary_composer)
- return;
-
- if (wb_pending)
- vaddr_out = crtc_state->active_writeback;
-
- ret = compose_active_planes(&vaddr_out, primary_composer,
- crtc_state);
- if (ret) {
- if (ret == -EINVAL && !wb_pending)
- kfree(vaddr_out);
+ ret = vkms_composer_common(crtc_state, out, wb_pending, &crc32);
+ if (ret == -EINVAL)
return;
- }
-
- crc32 = compute_crc(vaddr_out, primary_composer);
-
- if (wb_pending) {
- drm_writeback_signal_completion(&out->wb_connector, 0);
- spin_lock_irq(&out->composer_lock);
- crtc_state->wb_pending = false;
- spin_unlock_irq(&out->composer_lock);
- } else {
- kfree(vaddr_out);
- }
-
/*
* The worker can fall behind the vblank hrtimer, make sure we catch up.
*/
diff --git a/drivers/gpu/drm/vkms/vkms_drv.h b/drivers/gpu/drm/vkms/vkms_drv.h
index 8c731b6dcba7..01beba424f18 100644
--- a/drivers/gpu/drm/vkms/vkms_drv.h
+++ b/drivers/gpu/drm/vkms/vkms_drv.h
@@ -132,6 +132,8 @@ int vkms_verify_crc_source(struct drm_crtc *crtc, const char *source_name,
size_t *values_cnt);
/* Composer Support */
+int vkms_composer_common(struct vkms_crtc_state *crtc_state, struct vkms_output *out,
+ bool wb_pending, uint32_t *crcs);
void vkms_composer_worker(struct work_struct *work);
void vkms_set_composer(struct vkms_output *out, bool enabled);
--
2.31.1
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