[PATCH] drm/amd: disable GPA mode in backdoor load

[Huang, Tim]

[AMD Official Use Only - General]

Reviewed-by: Tim Huang <Tim.Huang at amd.com>

-----Original Message-----
From: Zhang, Yifan <Yifan1.Zhang at amd.com>
Sent: Thursday, June 9, 2022 6:23 PM
To: amd-gfx at lists.freedesktop.org
Cc: Huang, Ray <Ray.Huang at amd.com>; Deucher, Alexander <Alexander.Deucher at amd.com>; Huang, Tim <Tim.Huang at amd.com>; Zhang, Yifan <Yifan1.Zhang at amd.com>
Subject: [PATCH] drm/amd: disable GPA mode in backdoor load

GPA mode should be disabled in direct load.

Signed-off-by: Yifan Zhang <yifan1.zhang at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
index e331ea387ef0..571f13eb139d 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
@@ -4562,6 +4562,9 @@ static int gfx_v11_0_hw_init(void *handle)
                                if (adev->gfx.imu.funcs->start_imu)
                                        adev->gfx.imu.funcs->start_imu(adev);
                        }
+
+                       /* disable gpa mode in backdoor loading */
+                       gfx_v11_0_disable_gpa_mode(adev);
                }
        }

--
2.35.1