From: Nirmoy Das <nirmoy.das@amd.com>
To: amd-gfx@lists.freedesktop.org
Cc: Tianci.Yin@amd.com, pmenzel+amd-gfx@molgen.mpg.de,
Nirmoy Das <nirmoy.das@amd.com>,
alexander.deucher@amd.com, Leo.Liu@amd.com,
christian.koenig@amd.com
Subject: [PATCH 1/1] drm/amdgpu: disable gpu-sched load balance for uvd_enc
Date: Wed, 2 Sep 2020 12:15:36 +0200 [thread overview]
Message-ID: <20200902101536.47112-1-nirmoy.das@amd.com> (raw)
On hardware with multiple uvd instances, dependent uvd_enc jobs
may get scheduled to different uvd instances. Because uvd_enc
jobs retain hw context, dependent jobs should always run on the
same uvd instance. This patch disables GPU scheduler's load balancer
for a context that binds jobs from the same context to a uvd
instance.
Signed-off-by: Nirmoy Das <nirmoy.das@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
index 7cd398d25498..c80d8339f58c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
@@ -114,8 +114,10 @@ static int amdgpu_ctx_init_entity(struct amdgpu_ctx *ctx, u32 hw_ip,
scheds = adev->gpu_sched[hw_ip][hw_prio].sched;
num_scheds = adev->gpu_sched[hw_ip][hw_prio].num_scheds;
+ /* disable load balance if the hw engine retains context among dependent jobs */
if (hw_ip == AMDGPU_HW_IP_VCN_ENC ||
hw_ip == AMDGPU_HW_IP_VCN_DEC ||
+ hw_ip == AMDGPU_HW_IP_UVD_ENC ||
hw_ip == AMDGPU_HW_IP_UVD) {
sched = drm_sched_pick_best(scheds, num_scheds);
scheds = &sched;
--
2.28.0
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
next reply other threads:[~2020-09-02 10:11 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-02 10:15 Nirmoy Das [this message]
2020-09-02 11:07 ` [PATCH 1/1] drm/amdgpu: disable gpu-sched load balance for uvd_enc Christian König
2020-09-03 8:38 ` Nirmoy
-- strict thread matches above, loose matches on Subject: below --
2020-09-02 10:08 Nirmoy Das
2020-09-02 10:12 ` Nirmoy
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=20200902101536.47112-1-nirmoy.das@amd.com \
--to=nirmoy.das@amd.com \
--cc=Leo.Liu@amd.com \
--cc=Tianci.Yin@amd.com \
--cc=alexander.deucher@amd.com \
--cc=amd-gfx@lists.freedesktop.org \
--cc=christian.koenig@amd.com \
--cc=pmenzel+amd-gfx@molgen.mpg.de \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox