[PATCH] drm/amdgpu: load PSP RL in resume path

[Zhang, Hawking]

[AMD Official Use Only]

Reviewed-by: Hawking Zhang <Hawking.Zhang at amd.com>

Regards,
Hawking
-----Original Message-----
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of Tao Zhou
Sent: Friday, October 15, 2021 15:28
To: amd-gfx at lists.freedesktop.org; Zhang, Hawking <Hawking.Zhang at amd.com>; Clements, John <John.Clements at amd.com>; Yang, Stanley <Stanley.Yang at amd.com>
Cc: Zhou1, Tao <Tao.Zhou1 at amd.com>
Subject: [PATCH] drm/amdgpu: load PSP RL in resume path

Some registers' access will fail without PSP RL after resume.

Signed-off-by: Tao Zhou <tao.zhou1 at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 2bfe0682e0e6..88274c254c76 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -2623,6 +2623,12 @@ static int psp_resume(void *handle)
 		goto failed;
 	}
 
+	ret = psp_rl_load(adev);
+	if (ret) {
+		dev_err(adev->dev, "PSP load RL failed!\n");
+		goto failed;
+	}
+
 	if (adev->gmc.xgmi.num_physical_nodes > 1) {
 		ret = psp_xgmi_initialize(psp, false, true);
 		/* Warning the XGMI seesion initialize failure
-- 
2.17.1