2018-11-22 14:31:59

by Qiang Yu

[permalink] [raw]
Subject: [PATCH] drm/sun4i: wait on implicit fence before display

Render like lima will attach a fence to the framebuffer
dma_buf, display like sun4i should wait it finish before
show the framebuffer. Otherwise tearing will be observed.

Signed-off-by: Qiang Yu <[email protected]>
---
drivers/gpu/drm/sun4i/sun4i_layer.c | 2 ++
drivers/gpu/drm/sun4i/sun8i_ui_layer.c | 2 ++
drivers/gpu/drm/sun4i/sun8i_vi_layer.c | 2 ++
3 files changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/sun4i/sun4i_layer.c b/drivers/gpu/drm/sun4i/sun4i_layer.c
index 750ad24de1d7..d68e663df9a0 100644
--- a/drivers/gpu/drm/sun4i/sun4i_layer.c
+++ b/drivers/gpu/drm/sun4i/sun4i_layer.c
@@ -12,6 +12,7 @@

#include <drm/drm_atomic_helper.h>
#include <drm/drm_plane_helper.h>
+#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drmP.h>

#include "sun4i_backend.h"
@@ -114,6 +115,7 @@ static void sun4i_backend_layer_atomic_update(struct drm_plane *plane,
}

static const struct drm_plane_helper_funcs sun4i_backend_layer_helper_funcs = {
+ .prepare_fb = drm_gem_fb_prepare_fb,
.atomic_disable = sun4i_backend_layer_atomic_disable,
.atomic_update = sun4i_backend_layer_atomic_update,
};
diff --git a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
index 28c15c6ef1ef..7bc2ca2bd0c3 100644
--- a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
@@ -19,6 +19,7 @@
#include <drm/drm_crtc_helper.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_gem_cma_helper.h>
+#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_plane_helper.h>
#include <drm/drmP.h>

@@ -287,6 +288,7 @@ static void sun8i_ui_layer_atomic_update(struct drm_plane *plane,
}

static struct drm_plane_helper_funcs sun8i_ui_layer_helper_funcs = {
+ .prepare_fb = drm_gem_fb_prepare_fb,
.atomic_check = sun8i_ui_layer_atomic_check,
.atomic_disable = sun8i_ui_layer_atomic_disable,
.atomic_update = sun8i_ui_layer_atomic_update,
diff --git a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
index f4fe97813f94..815895795afd 100644
--- a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
@@ -13,6 +13,7 @@
#include <drm/drm_crtc_helper.h>
#include <drm/drm_fb_cma_helper.h>
#include <drm/drm_gem_cma_helper.h>
+#include <drm/drm_gem_framebuffer_helper.h>
#include <drm/drm_plane_helper.h>
#include <drm/drmP.h>

@@ -315,6 +316,7 @@ static void sun8i_vi_layer_atomic_update(struct drm_plane *plane,
}

static struct drm_plane_helper_funcs sun8i_vi_layer_helper_funcs = {
+ .prepare_fb = drm_gem_fb_prepare_fb,
.atomic_check = sun8i_vi_layer_atomic_check,
.atomic_disable = sun8i_vi_layer_atomic_disable,
.atomic_update = sun8i_vi_layer_atomic_update,
--
2.17.1



2018-11-23 07:26:39

by Daniel Vetter

[permalink] [raw]
Subject: Re: [PATCH] drm/sun4i: wait on implicit fence before display

On Thu, Nov 22, 2018 at 09:44:17AM +0800, Qiang Yu wrote:
> Render like lima will attach a fence to the framebuffer
> dma_buf, display like sun4i should wait it finish before
> show the framebuffer. Otherwise tearing will be observed.
>
> Signed-off-by: Qiang Yu <[email protected]>

Thanks for submitting this fix, applied to drm-misc-next.
-Daniel

> ---
> drivers/gpu/drm/sun4i/sun4i_layer.c | 2 ++
> drivers/gpu/drm/sun4i/sun8i_ui_layer.c | 2 ++
> drivers/gpu/drm/sun4i/sun8i_vi_layer.c | 2 ++
> 3 files changed, 6 insertions(+)
>
> diff --git a/drivers/gpu/drm/sun4i/sun4i_layer.c b/drivers/gpu/drm/sun4i/sun4i_layer.c
> index 750ad24de1d7..d68e663df9a0 100644
> --- a/drivers/gpu/drm/sun4i/sun4i_layer.c
> +++ b/drivers/gpu/drm/sun4i/sun4i_layer.c
> @@ -12,6 +12,7 @@
>
> #include <drm/drm_atomic_helper.h>
> #include <drm/drm_plane_helper.h>
> +#include <drm/drm_gem_framebuffer_helper.h>
> #include <drm/drmP.h>
>
> #include "sun4i_backend.h"
> @@ -114,6 +115,7 @@ static void sun4i_backend_layer_atomic_update(struct drm_plane *plane,
> }
>
> static const struct drm_plane_helper_funcs sun4i_backend_layer_helper_funcs = {
> + .prepare_fb = drm_gem_fb_prepare_fb,
> .atomic_disable = sun4i_backend_layer_atomic_disable,
> .atomic_update = sun4i_backend_layer_atomic_update,
> };
> diff --git a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
> index 28c15c6ef1ef..7bc2ca2bd0c3 100644
> --- a/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
> +++ b/drivers/gpu/drm/sun4i/sun8i_ui_layer.c
> @@ -19,6 +19,7 @@
> #include <drm/drm_crtc_helper.h>
> #include <drm/drm_fb_cma_helper.h>
> #include <drm/drm_gem_cma_helper.h>
> +#include <drm/drm_gem_framebuffer_helper.h>
> #include <drm/drm_plane_helper.h>
> #include <drm/drmP.h>
>
> @@ -287,6 +288,7 @@ static void sun8i_ui_layer_atomic_update(struct drm_plane *plane,
> }
>
> static struct drm_plane_helper_funcs sun8i_ui_layer_helper_funcs = {
> + .prepare_fb = drm_gem_fb_prepare_fb,
> .atomic_check = sun8i_ui_layer_atomic_check,
> .atomic_disable = sun8i_ui_layer_atomic_disable,
> .atomic_update = sun8i_ui_layer_atomic_update,
> diff --git a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
> index f4fe97813f94..815895795afd 100644
> --- a/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
> +++ b/drivers/gpu/drm/sun4i/sun8i_vi_layer.c
> @@ -13,6 +13,7 @@
> #include <drm/drm_crtc_helper.h>
> #include <drm/drm_fb_cma_helper.h>
> #include <drm/drm_gem_cma_helper.h>
> +#include <drm/drm_gem_framebuffer_helper.h>
> #include <drm/drm_plane_helper.h>
> #include <drm/drmP.h>
>
> @@ -315,6 +316,7 @@ static void sun8i_vi_layer_atomic_update(struct drm_plane *plane,
> }
>
> static struct drm_plane_helper_funcs sun8i_vi_layer_helper_funcs = {
> + .prepare_fb = drm_gem_fb_prepare_fb,
> .atomic_check = sun8i_vi_layer_atomic_check,
> .atomic_disable = sun8i_vi_layer_atomic_disable,
> .atomic_update = sun8i_vi_layer_atomic_update,
> --
> 2.17.1
>
> _______________________________________________
> dri-devel mailing list
> [email protected]
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch