All of lore.kernel.org
 help / color / mirror / Atom feed
From: Wayne Lin <Wayne.Lin@amd.com>
To: <amd-gfx@lists.freedesktop.org>
Cc: Eryk.Brol@amd.com, Sunpeng.Li@amd.com, Harry.Wentland@amd.com,
	Qingqing.Zhuo@amd.com, Rodrigo.Siqueira@amd.com,
	Anson.Jacob@amd.com, Aurabindo.Pillai@amd.com,
	Paul Wu <paul.wu@amd.com>,
	Bhawanpreet.Lakha@amd.com, bindu.r@amd.com
Subject: [PATCH 11/14] drm/amd/display: Set stream_count to 0 when dc_resource_state_destruct.
Date: Thu, 29 Apr 2021 15:52:03 +0800	[thread overview]
Message-ID: <20210429075206.15974-12-Wayne.Lin@amd.com> (raw)
In-Reply-To: <20210429075206.15974-1-Wayne.Lin@amd.com>

From: Paul Wu <paul.wu@amd.com>

[Why]
When hardware need to be reset, driver need to reset stream objects but
dc_resource_state_destruct function omit resetting stream_count. It will
lead page fault if some logic will touch stream object.

[How]
Set stream_count to 0 when dc_resource_state_destruct.

Signed-off-by: Paul Wu <paul.wu@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Wayne Lin <Wayne.Lin@amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index 9fb0930f977b..f2bc630a0871 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -2673,6 +2673,7 @@ void dc_resource_state_destruct(struct dc_state *context)
 		dc_stream_release(context->streams[i]);
 		context->streams[i] = NULL;
 	}
+	context->stream_count = 0;
 }
 
 void dc_resource_state_copy_construct(
-- 
2.17.1

_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

  parent reply	other threads:[~2021-04-29  7:54 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-29  7:51 [PATCH 00/14] DC Patches May 03, 2021 Wayne Lin
2021-04-29  7:51 ` [PATCH 01/14] drm/amd/display: multi-eDP backlight support Wayne Lin
2021-04-29  7:51 ` [PATCH 02/14] dc: Revert commit "treat memory as a single-channel" Wayne Lin
2021-04-29  7:51 ` [PATCH 03/14] drm/amd/display: fix potential gpu reset deadlock Wayne Lin
2021-04-29  7:51 ` [PATCH 04/14] drm/amd/display: Extend DMUB HW params to allow DM to specify boot options Wayne Lin
2021-04-29  7:51 ` [PATCH 05/14] drm/amd/display: update DCN to use new surface programming Wayne Lin
2021-04-29  7:51 ` [PATCH 06/14] drm/amd/display: Support for DMUB AUX Wayne Lin
2021-04-29  7:51 ` [PATCH 07/14] drm/amd/display: Add audio support for DFP type of active branch is DP case Wayne Lin
2021-04-29  7:52 ` [PATCH 08/14] drm/amd/display: remove checking sink in is_timing_changed Wayne Lin
2021-04-29  7:52 ` [PATCH 09/14] drm/amd/display: add dsc stream overhead for dp only Wayne Lin
2021-04-29  7:52 ` [PATCH 10/14] drm/amd/display: Filter out YCbCr420 timing if VSC SDP not supported Wayne Lin
2021-04-29  7:52 ` Wayne Lin [this message]
2021-04-29  7:52 ` [PATCH 12/14] drm/amd/display: Avoid gpio conflict on MST branch Wayne Lin
2021-04-29  7:52 ` [PATCH 13/14] drm/amd/display: [FW Promotion] Release 0.0.64 Wayne Lin
2021-04-29  7:52 ` [PATCH 14/14] drm/amd/display: 3.2.134 Wayne Lin
2021-04-30 19:49 ` [PATCH 00/14] DC Patches May 03, 2021 Wheeler, Daniel

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210429075206.15974-12-Wayne.Lin@amd.com \
    --to=wayne.lin@amd.com \
    --cc=Anson.Jacob@amd.com \
    --cc=Aurabindo.Pillai@amd.com \
    --cc=Bhawanpreet.Lakha@amd.com \
    --cc=Eryk.Brol@amd.com \
    --cc=Harry.Wentland@amd.com \
    --cc=Qingqing.Zhuo@amd.com \
    --cc=Rodrigo.Siqueira@amd.com \
    --cc=Sunpeng.Li@amd.com \
    --cc=amd-gfx@lists.freedesktop.org \
    --cc=bindu.r@amd.com \
    --cc=paul.wu@amd.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.