From: Likun Gao <Likun.Gao@amd.com>
Date: Mon, 25 Aug 2025 06:23:08 +0000 (+0800)
Subject: drm/amdgpu: skip gfxhub tlb flush if gfx is power off
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=acf07acfae919305eb96085dc0b11ab0382ae3e5;p=thirdparty%2Fkernel%2Flinux.git

drm/amdgpu: skip gfxhub tlb flush if gfx is power off

Skip for gfxhub tlb flush for gc v12_1 if gfx is not poweron.

Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v12_1.c b/drivers/gpu/drm/amd/amdgpu/gmc_v12_1.c
index bef28aedfb93b..3c6b6c6f0cfc6 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v12_1.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v12_1.c
@@ -319,6 +319,10 @@ static void gmc_v12_1_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
 {
 	u32 inst;
 
+	if (AMDGPU_IS_GFXHUB(vmhub) &&
+	    !adev->gfx.is_poweron)
+		return;
+
 	if (vmhub >= AMDGPU_MMHUB0(0))
 		inst = 0;
 	else