From e39e450ed7e373d3ef9b699082dd44013c205765 Mon Sep 17 00:00:00 2001
From: Likun Gao <Likun.Gao@amd.com>
Date: Wed, 3 Aug 2022 12:16:35 +0800
Subject: drm/amdgpu: change vram width algorithm for vram_info v3_0
Git-commit: 4a0a2cf4c03ba49a4c2596c49c7daa719917d509
Patch-mainline: v6.0-rc2
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225 jsc#PED-2849
Update the vram width algorithm for vram_info v3_0 to align with the
changes of latest IFWI.
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 5.19.x
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
index fd8f3731758e..b81b77a9efa6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
@@ -314,7 +314,7 @@ amdgpu_atomfirmware_get_vram_info(struct amdgpu_device *adev,
mem_channel_number = vram_info->v30.channel_num;
mem_channel_width = vram_info->v30.channel_width;
if (vram_width)
- *vram_width = mem_channel_number * mem_channel_width;
+ *vram_width = mem_channel_number * (1 << mem_channel_width);
break;
default:
return -EINVAL;
--
2.38.1