From 5da332cf3d2ed268e6c0c729007f7e63827934cc Mon Sep 17 00:00:00 2001
From: Jack Xiao <Jack.Xiao@amd.com>
Date: Fri, 27 Mar 2020 16:43:28 +0800
Subject: drm/amdgpu/mes: implement resuming all gangs
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Git-commit: ea756bd5cc675b8dfb2be4069c620302200ecc2f
Patch-mainline: v5.19-rc1
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
Implement resuming all gangs.
Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c | 25 +++++++++++++++++++++++++
drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h | 1 +
2 files changed, 26 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
index e64f2a4b5a3b..b58af81f04a3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
@@ -471,3 +471,28 @@ int amdgpu_mes_suspend(struct amdgpu_device *adev)
mutex_unlock(&adev->mes.mutex);
return 0;
}
+
+int amdgpu_mes_resume(struct amdgpu_device *adev)
+{
+ struct idr *idp;
+ struct amdgpu_mes_process *process;
+ struct amdgpu_mes_gang *gang;
+ struct mes_resume_gang_input input;
+ int r, pasid;
+
+ mutex_lock(&adev->mes.mutex);
+
+ idp = &adev->mes.pasid_idr;
+
+ idr_for_each_entry(idp, process, pasid) {
+ list_for_each_entry(gang, &process->gang_list, list) {
+ r = adev->mes.funcs->resume_gang(&adev->mes, &input);
+ if (r)
+ DRM_ERROR("failed to resume pasid %d gangid %d",
+ pasid, gang->gang_id);
+ }
+ }
+
+ mutex_unlock(&adev->mes.mutex);
+ return 0;
+}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
index 8c26528b06ff..c7fddb24ce51 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
@@ -232,5 +232,6 @@ int amdgpu_mes_add_gang(struct amdgpu_device *adev, int pasid,
int amdgpu_mes_remove_gang(struct amdgpu_device *adev, int gang_id);
int amdgpu_mes_suspend(struct amdgpu_device *adev);
+int amdgpu_mes_resume(struct amdgpu_device *adev);
#endif /* __AMDGPU_MES_H__ */
--
2.38.1