drm/amdgpu: keep amdgpu_ctx_mgr in ctx structure

Keep amdgpu_ctx_mgr in ctx structure to track fpriv.

v2: add missing fpriv declaration lost in rebase
Signed-off-by: James Zhu <James.Zhu@amd.com>
Acked-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c

@@ -303,6 +303,7 @@ static int amdgpu_ctx_get_stable_pstate(struct amdgpu_ctx *ctx,
 static int amdgpu_ctx_init(struct amdgpu_ctx_mgr *mgr, int32_t priority,
 			   struct drm_file *filp, struct amdgpu_ctx *ctx)
 {
+	struct amdgpu_fpriv *fpriv = filp->driver_priv;
 	u32 current_stable_pstate;
 	int r;
 
@@ -331,6 +332,7 @@ static int amdgpu_ctx_init(struct amdgpu_ctx_mgr *mgr, int32_t priority,
 	else
 		ctx->stable_pstate = current_stable_pstate;
 
+	ctx->ctx_mgr = &(fpriv->ctx_mgr);
 	return 0;
 }
 

drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.h

@@ -57,6 +57,7 @@ struct amdgpu_ctx {
 	unsigned long			ras_counter_ce;
 	unsigned long			ras_counter_ue;
 	uint32_t			stable_pstate;
+	struct amdgpu_ctx_mgr		*ctx_mgr;
 };
 
 struct amdgpu_ctx_mgr {