[PATCH 3/3] drm/amdgpu: set Vega20 LBPW as disabled at default

[Evan Quan]

For Vega20, LBPW feature is disabled at default.

Change-Id: I184520cbb03ab8cba9321cd94d1deb0ce38b7e17
Signed-off-by: Evan Quan <evan.quan at 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 dcf1f79ab347..5bb0cca5b71f 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -2503,6 +2503,20 @@ 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)
-- 
2.19.1