[PATCH 2/4] drm/amdgpu: get xgmi info at eary_init

[Liu, Shaoyun]

[AMD Official Use Only - Internal Distribution Only]



-----Original Message-----
From: Liu, Shaoyun <shaoyun.liu at amd.com> 
Sent: Thursday, February 18, 2021 8:19 PM
To: amd-gfx at lists.freedesktop.org
Cc: Liu, Shaoyun <Shaoyun.Liu at amd.com>
Subject: [PATCH 2/4] drm/amdgpu: get xgmi info at eary_init

Driver need to get XGMI info function earlier before ip_init since driver need to check the XGMI setting to determine how to perform reset during init

Signed-off-by: shaoyunl <shaoyun.liu at amd.com>
Change-Id: Ic37276bbb6640bb4e9360220fed99494cedd3ef5
---
 drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 3686e777c76c..3e6bfab5b855 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -1151,6 +1151,10 @@ static int gmc_v9_0_early_init(void *handle)
 	adev->gmc.private_aperture_end =
 		adev->gmc.private_aperture_start + (4ULL << 30) - 1;
 
+	/* Need to get xgmi info earlier to decide the reset behavior*/
+	if (adev->gmc.xgmi.supported)
+		adev->gfxhub.funcs->get_xgmi_info(adev);
+
 	return 0;
 }
 
@@ -1416,12 +1420,6 @@ static int gmc_v9_0_sw_init(void *handle)
 	}
 	adev->need_swiotlb = drm_need_swiotlb(44);
 
-	if (adev->gmc.xgmi.supported) {
-		r = adev->gfxhub.funcs->get_xgmi_info(adev);
-		if (r)
-			return r;
-	}
-
 	r = gmc_v9_0_mc_init(adev);
 	if (r)
 		return r;
--
2.17.1