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From 2d8bd23a057234ce8e540a3a08f4e67abcc551a8 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Wed, 22 Apr 2015 14:00:49 -0400
Subject: [PATCH 0181/1050] drm/amdgpu: drop ttm two ended allocation
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
amdgpu_bo_create() calls amdgpu_ttm_placement_from_domain()
before ttm_bo_init() is called. amdgpu_ttm_placement_from_domain()
uses the ttm bo size to determine when to select top down
allocation but since the ttm bo is not initialized yet the
check is always false. It only took affect when buffers
were validated later. It also seemed to regress suspend
and resume on some systems possibly due to it not
taking affect in amdgpu_bo_create().
amdgpu_bo_create() and amdgpu_ttm_placement_from_domain()
need to be reworked substantially for this to be optimally
effective. Re-enable it at that point.
Ported from radeon commit:
a239118a24b3bf9089751068e431dfb63dc4168b
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index b515827..f5e17f9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -189,12 +189,6 @@ void amdgpu_ttm_placement_from_domain(struct amdgpu_bo *rbo, u32 domain)
else
rbo->placements[i].lpfn = 0;
}
-
- if (rbo->tbo.mem.size > 512 * 1024) {
- for (i = 0; i < c; i++) {
- rbo->placements[i].flags |= TTM_PL_FLAG_TOPDOWN;
- }
- }
}
int amdgpu_bo_create(struct amdgpu_device *adev,
--
1.9.1
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