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From 5751abdf9cf7937e1994dd09f2c933d59bcc726e Mon Sep 17 00:00:00 2001
From: Evan Quan <evan.quan@amd.com>
Date: Fri, 2 Nov 2018 17:21:17 +0800
Subject: [PATCH 0778/2940] drm/amdgpu: set Vega20 LBPW as disabled at default
For Vega20, LBPW feature is disabled at default.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 54d5e2335991..188a8c6e9474 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -2517,6 +2517,20 @@ static int gfx_v9_0_rlc_resume(struct amdgpu_device *adev)
return r;
}
+ if (amdgpu_lbpw == -1) {
+ switch (adev->asic_type) {
+ case CHIP_RAVEN:
+ amdgpu_lbpw = 1;
+ break;
+ case CHIP_VEGA20:
+ amdgpu_lbpw = 0;
+ break;
+ default:
+ amdgpu_lbpw = 0;
+ break;
+ }
+ }
+
if (adev->asic_type == CHIP_RAVEN ||
adev->asic_type == CHIP_VEGA20) {
if (amdgpu_lbpw != 0)
--
2.17.1
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