blob: 2bb2633e08b69d26f25c503b7e65212584359841 (
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
|
From 0cb6f052780175001c9356bdf47f094f07dda7d0 Mon Sep 17 00:00:00 2001
From: Tom St Denis <tom.stdenis@amd.com>
Date: Mon, 26 Feb 2018 09:09:26 -0500
Subject: [PATCH 3604/4131] drm/amd/amdgpu: Correct VRAM width for APUs with
GMC9
DDR4 has a 64-bit width not 128-bits. It was reporting
twice the width. Tested with my Ryzen 2400G.
Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Kalyan Alle <kalyan.alle@amd.com>
---
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index a842d6c..90f6afb 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -720,6 +720,7 @@ static int gmc_v9_0_mc_init(struct amdgpu_device *adev)
if (amdgpu_emu_mode != 1)
adev->gmc.vram_width = amdgpu_atomfirmware_get_vram_width(adev);
if (!adev->gmc.vram_width) {
+
/* hbm memory channel size */
if (adev->flags & AMD_IS_APU)
chansize = 64;
--
2.7.4
|
