blob: 390bf7e1f3fddcbf447b63d27c5ad82b3a6156f0 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
From 00ebe987553b478aaf96122c807248e8d49487ea Mon Sep 17 00:00:00 2001
From: Harry Wentland <harry.wentland@amd.com>
Date: Mon, 30 Oct 2017 13:41:51 -0400
Subject: [PATCH 3139/4131] drm/amd/display: Enable VM support only on APUs
newer than CZ
VM support is only available for CZ and newer APUs. Trying to
enable it for dGPU will blow up in DC.
v2: Don't enable gpu_vm_support for Raven yet since it leads to
a black screen. Need to debug this further before enabling.
Change-Id: Ibe467c36affe2e7a7ee740c8d4f73027ca807178
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Suggested-by: Alex Deucher <alexander.deucher@amd.com>
CC: Christian Koenig <christian.koenig@amd.com>
Reviewed-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index f765463..47a6a02 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -463,6 +463,14 @@ static int amdgpu_dm_init(struct amdgpu_device *adev)
else
init_data.log_mask = DC_MIN_LOG_MASK;
+ /*
+ * TODO debug why this doesn't work on Raven
+ */
+ if (adev->flags & AMD_IS_APU &&
+ adev->asic_type >= CHIP_CARRIZO &&
+ adev->asic_type < CHIP_RAVEN)
+ init_data.flags.gpu_vm_support = true;
+
/* Display Core create. */
adev->dm.dc = dc_create(&init_data);
--
2.7.4
|
