mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-26 00:41:17 +00:00
45 lines
1.5 KiB
Diff
45 lines
1.5 KiB
Diff
|
From 87df00d6b301f5de54443ac7e3765dce983e8b6a Mon Sep 17 00:00:00 2001
|
||
|
|
From: Eric Anholt <eric@anholt.net>
|
||
|
|
Date: Thu, 28 Mar 2019 11:58:51 -0700
|
||
|
|
Subject: [PATCH] drm/vc4: Fix synchronization firmwarekms against GL
|
||
|
|
rendering.
|
||
|
|
|
||
|
|
We would present the framebuffer immediately without waiting for
|
||
|
|
rendering to finish first, resulting in stuttering and flickering as a
|
||
|
|
window was dragged around when the GPU was busy enough to not just win
|
||
|
|
the race.
|
||
|
|
|
||
|
|
Signed-off-by: Eric Anholt <eric@anholt.net>
|
||
|
|
---
|
||
|
|
drivers/gpu/drm/vc4/vc4_firmware_kms.c | 5 +++--
|
||
|
|
1 file changed, 3 insertions(+), 2 deletions(-)
|
||
|
|
|
||
|
|
--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
|
||
|
|
+++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
|
||
|
|
@@ -15,6 +15,7 @@
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "drm/drm_atomic_helper.h"
|
||
|
|
+#include "drm/drm_gem_framebuffer_helper.h"
|
||
|
|
#include "drm/drm_plane_helper.h"
|
||
|
|
#include "drm/drm_crtc_helper.h"
|
||
|
|
#include "drm/drm_fourcc.h"
|
||
|
|
@@ -291,7 +292,7 @@ static const struct drm_plane_funcs vc4_
|
||
|
|
};
|
||
|
|
|
||
|
|
static const struct drm_plane_helper_funcs vc4_primary_plane_helper_funcs = {
|
||
|
|
- .prepare_fb = NULL,
|
||
|
|
+ .prepare_fb = drm_gem_fb_prepare_fb,
|
||
|
|
.cleanup_fb = NULL,
|
||
|
|
.atomic_check = vc4_plane_atomic_check,
|
||
|
|
.atomic_update = vc4_primary_plane_atomic_update,
|
||
|
|
@@ -299,7 +300,7 @@ static const struct drm_plane_helper_fun
|
||
|
|
};
|
||
|
|
|
||
|
|
static const struct drm_plane_helper_funcs vc4_cursor_plane_helper_funcs = {
|
||
|
|
- .prepare_fb = NULL,
|
||
|
|
+ .prepare_fb = drm_gem_fb_prepare_fb,
|
||
|
|
.cleanup_fb = NULL,
|
||
|
|
.atomic_check = vc4_plane_atomic_check,
|
||
|
|
.atomic_update = vc4_cursor_plane_atomic_update,
|