From: Michael Chen <michael.chen@amd.com>
To: <amd-gfx@lists.freedesktop.org>
Cc: <alexander.deucher@amd.com>, <michael.chen@amd.com>
Subject: [PATCH] drm/amd/amdgpu: reserve vm invalidation engine for uni_mes
Date: Thu, 13 Nov 2025 13:08:53 -0500 [thread overview]
Message-ID: <20251113180853.225907-1-michael.chen@amd.com> (raw)
Reserve vm invalidation engine 6 when uni_mes enabled. It
is used in processing tlb flush request from host.
Signed-off-by: Michael Chen <michael.chen@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
index 97b562a79ea8..4814be022f32 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
@@ -597,6 +597,9 @@ int amdgpu_gmc_allocate_vm_inv_eng(struct amdgpu_device *adev)
/* reserve engine 5 for firmware */
if (adev->enable_mes)
vm_inv_engs[i] &= ~(1 << 5);
+ /* reserve engine 6 for uni mes */
+ if (adev->enable_uni_mes)
+ vm_inv_engs[i] &= ~(1 << 6);
/* reserve mmhub engine 3 for firmware */
if (adev->enable_umsch_mm)
vm_inv_engs[i] &= ~(1 << 3);
--
2.34.1
next reply other threads:[~2025-11-13 18:10 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-13 18:08 Michael Chen [this message]
2025-11-14 14:42 ` [PATCH] drm/amd/amdgpu: reserve vm invalidation engine for uni_mes Alex Deucher
2025-11-14 19:13 ` Liu, Shaoyun
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=20251113180853.225907-1-michael.chen@amd.com \
--to=michael.chen@amd.com \
--cc=alexander.deucher@amd.com \
--cc=amd-gfx@lists.freedesktop.org \
/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