[PATCH] drm/amdgpu/sriov : Don't resume RLCG for SRIOV guest

[Zhang, Hawking]

[AMD Official Use Only - Internal Distribution Only]

Reviewed-by: Hawking Zhang <Hawking.Zhang at amd.com>

Regards,
Hawking
-----Original Message-----
From: Liu, Shaoyun <Shaoyun.Liu at amd.com> 
Sent: Thursday, March 19, 2020 05:30
To: amd-gfx at lists.freedesktop.org; Zhang, Hawking <Hawking.Zhang at amd.com>
Subject: RE: [PATCH] drm/amdgpu/sriov : Don't resume RLCG for SRIOV guest

[AMD Official Use Only - Internal Distribution Only]

ping

-----Original Message-----
From: Liu, Shaoyun <Shaoyun.Liu at amd.com> 
Sent: Tuesday, March 17, 2020 12:55 PM
To: amd-gfx at lists.freedesktop.org
Cc: Liu, Shaoyun <Shaoyun.Liu at amd.com>
Subject: [PATCH] drm/amdgpu/sriov : Don't resume RLCG for SRIOV guest

RLCG is enabled by host driver, no need to enable it in guest for none-PSP load path

Change-Id: I2f313743bf3d492f06aaef07224da6eda3878a28
Signed-off-by: shaoyunl <shaoyun.liu at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
index d1cdcb4..e134bb2 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
@@ -1940,6 +1940,11 @@ static int gfx_v10_0_rlc_resume(struct amdgpu_device *adev)
 		if (!amdgpu_sriov_vf(adev)) /* enable RLC SRM */
 			gfx_v10_0_rlc_enable_srm(adev);
 	} else {
+		if (amdgpu_sriov_vf(adev)) {
+			gfx_v10_0_init_csb(adev);
+			return 0;
+		}
+
 		adev->gfx.rlc.funcs->stop(adev);
 
 		/* disable CG */
-- 
2.7.4