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Message-ID: <ab3492843ea631c51a3ff8dcf8e3f7af96aaed60.1617602076.git.sylphrenadin@gmail.com>
Date: Mon, 5 Apr 2021 11:44:28 +0530
From: Sumera Priyadarsini <sylphrenadin@...il.com>
To: melissa.srw@...il.com
Cc: rodrigosiqueiramelo@...il.com, hamohammed.sa@...il.com,
daniel@...ll.ch, airlied@...ux.ie, dri-devel@...ts.freedesktop.org,
linux-kernel@...r.kernel.org
Subject: [PATCH V4 1/2] drm/vkms: Refactor vkms_composer_worker() to prep for
virtual_hw mode
Add two new functions vkms_composer_common() and vkms_crtc_composer().
The actual plane composition work has been moved to the helper function,
vkms_composer_common() which is called by both vkms_composer_worker()
and vkms_crtc_composer(). vkms_crtc_composer() can be used when we
implement virtual_hw mode.
Signed-off-by: Sumera Priyadarsini <sylphrenadin@...il.com>
---
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 | 88 +++++++++++++++++-----------
drivers/gpu/drm/vkms/vkms_drv.h | 3 +
2 files changed, 58 insertions(+), 33 deletions(-)
diff --git a/drivers/gpu/drm/vkms/vkms_composer.c b/drivers/gpu/drm/vkms/vkms_composer.c
index 66c6842d70db..0d2bad3ff849 100644
--- a/drivers/gpu/drm/vkms/vkms_composer.c
+++ b/drivers/gpu/drm/vkms/vkms_composer.c
@@ -169,6 +169,44 @@ static int compose_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_composer *cursor_composer = NULL;
+ void *vaddr_out = NULL;
+ int ret;
+
+ if (crtc_state->num_active_planes >= 1)
+ primary_composer = crtc_state->active_planes[0]->composer;
+ if (crtc_state->num_active_planes == 2)
+ cursor_composer = crtc_state->active_planes[1]->composer;
+ if (!primary_composer)
+ return -EINVAL;
+ if (wb_pending)
+ vaddr_out = crtc_state->active_writeback;
+
+ ret = compose_planes(&vaddr_out, primary_composer, cursor_composer);
+ if (ret) {
+ if (ret == -EINVAL && !wb_pending)
+ kfree(vaddr_out);
+ return -EINVAL;
+ }
+
+ *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
*
@@ -185,12 +223,9 @@ 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_composer *cursor_composer = NULL;
bool crc_pending, wb_pending;
- void *vaddr_out = NULL;
- u32 crc32 = 0;
u64 frame_start, frame_end;
+ u32 crc32 = 0;
int ret;
spin_lock_irq(&out->composer_lock);
@@ -210,36 +245,9 @@ void vkms_composer_worker(struct work_struct *work)
if (!crc_pending)
return;
- if (crtc_state->num_active_planes >= 1)
- primary_composer = crtc_state->active_planes[0]->composer;
-
- if (crtc_state->num_active_planes == 2)
- cursor_composer = crtc_state->active_planes[1]->composer;
-
- if (!primary_composer)
- return;
-
- if (wb_pending)
- vaddr_out = crtc_state->active_writeback;
-
- ret = compose_planes(&vaddr_out, primary_composer, cursor_composer);
- 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.
*/
@@ -247,6 +255,20 @@ void vkms_composer_worker(struct work_struct *work)
drm_crtc_add_crc_entry(crtc, true, frame_start++, &crc32);
}
+void vkms_crtc_composer(struct vkms_crtc_state *crtc_state)
+{
+ struct drm_crtc *crtc = crtc_state->base.crtc;
+ struct vkms_output *out = drm_crtc_to_vkms_output(crtc);
+ u32 crc32 = 0;
+ int ret;
+
+ ret = vkms_composer_common(crtc_state, out, crtc_state->wb_pending, &crc32);
+ if (ret == -EINVAL)
+ return;
+
+ drm_crtc_add_crc_entry(crtc, true, 0, &crc32);
+}
+
static const char * const pipe_crc_sources[] = {"auto"};
const char *const *vkms_get_crc_sources(struct drm_crtc *crtc,
diff --git a/drivers/gpu/drm/vkms/vkms_drv.h b/drivers/gpu/drm/vkms/vkms_drv.h
index 35540c7c4416..538315140585 100644
--- a/drivers/gpu/drm/vkms/vkms_drv.h
+++ b/drivers/gpu/drm/vkms/vkms_drv.h
@@ -125,8 +125,11 @@ 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);
+void vkms_crtc_composer(struct vkms_crtc_state *crtc_state);
/* Writeback */
int vkms_enable_writeback_connector(struct vkms_device *vkmsdev);
--
2.25.1
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