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From ecf0107a19702a3a5cb605e65821e7dc33b9f98b Mon Sep 17 00:00:00 2001
From: Monk Liu <Monk.Liu@amd.com>
Date: Fri, 15 Sep 2017 16:58:08 +0800
Subject: [PATCH 1851/4131] drm/amdgpu/sriov:init csb for gfxv9
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RLC need CSB registers initiated under SRIOV during world switch
otherwise the clear state buffer behav will not be recovered to
current VF scheme after switch back
Change-Id: I3afd82875564c233060b740724bd8031095780f6
Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
---
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 0f116b1a..d1dbec1 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -2045,8 +2045,10 @@ static int gfx_v9_0_rlc_resume(struct amdgpu_device *adev)
{
int r;
- if (amdgpu_sriov_vf(adev))
+ if (amdgpu_sriov_vf(adev)) {
+ gfx_v9_0_init_csb(adev);
return 0;
+ }
gfx_v9_0_rlc_stop(adev);
--
2.7.4
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