linux-kernel - [PATCH AUTOSEL 6.0 27/44] drm/amdgpu: Fix the lpfn checking condition in drm buddy

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Date:   Fri, 18 Nov 2022 21:11:07 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Ma Jun <Jun.Ma2@....com>,
        Christian König <christian.koenig@....com>,
        Sasha Levin <sashal@...nel.org>, alexander.deucher@....com,
        Xinhui.Pan@....com, airlied@...il.com, daniel@...ll.ch,
        Arunpravin.PaneerSelvam@....com, tao.zhou1@....com,
        nirmoy.das@....com, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org
Subject: [PATCH AUTOSEL 6.0 27/44] drm/amdgpu: Fix the lpfn checking condition in drm buddy

From: Ma Jun <Jun.Ma2@....com>

[ Upstream commit e0b26b9482461e9528552f54fa662c2269f75b3f ]

Because the value of man->size is changed during suspend/resume process,
use mgr->mm.size instead of man->size here for lpfn checking.

Signed-off-by: Ma Jun <Jun.Ma2@....com>
Suggested-by: Christian König <christian.koenig@....com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220914125331.2467162-1-Jun.Ma2@amd.com
Signed-off-by: Christian König <christian.koenig@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
index 28ec5f8ac1c1..27159f1d112e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
@@ -435,7 +435,7 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man,
 	if (place->flags & TTM_PL_FLAG_TOPDOWN)
 		vres->flags |= DRM_BUDDY_TOPDOWN_ALLOCATION;
 
-	if (fpfn || lpfn != man->size)
+	if (fpfn || lpfn != mgr->mm.size)
 		/* Allocate blocks in desired range */
 		vres->flags |= DRM_BUDDY_RANGE_ALLOCATION;
 
-- 
2.35.1