答复: [PATCH] sync amdgpu scanout update event before mode setting

[Qu, Jim]

Hi,

Any comments for this patch?

Thanks
JimQu

________________________________________
发件人: amd-gfx <amd-gfx-boun...@lists.freedesktop.org> 代表 Jim Qu <jim...@amd.com>
发送时间: 2018年4月17日 19:11
收件人: amd-gfx@lists.freedesktop.org
抄送: Qu, Jim
主题: [PATCH] sync amdgpu scanout update event before mode setting

There is a case that when set screen from reverse to normal, the old
scanout damage is freed in modesetting before sanout update handler,
so it causes segment fault issue.

Change-Id: I0fc6282688054d1e0f23d1ba66d4227553de53f3
Signed-off-by: Jim Qu <jim...@amd.com>
---
 src/drmmode_display.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/drmmode_display.c b/src/drmmode_display.c
index 85970d1..ea38e29 100644
--- a/src/drmmode_display.c
+++ b/src/drmmode_display.c
@@ -902,6 +902,9 @@ drmmode_set_mode_major(xf86CrtcPtr crtc, DisplayModePtr 
mode,
                drmmode_crtc_wait_pending_event(drmmode_crtc, pAMDGPUEnt->fd,
                                                drmmode_crtc->flip_pending);

+               drmmode_crtc_wait_pending_event(drmmode_crtc, pAMDGPUEnt->fd,
+                                               
drmmode_crtc->scanout_update_pending);
+
                if (!drmmode_set_mode(crtc, fb, mode, x, y))
                        goto done;

--
1.9.1

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