VCN HW doesn't support dynamic load balance on multiple instances
for a context. This patch initializes VNC entities with only one
drm_gpu_scheduler picked by drm_sched_pick_best(). Picking a
drm_gpu_scheduler using drm_sched_pick_best() ensures that we
do load balance among multiple contexts but not among multiple
jobs in a context.

Signed-off-by: Nirmoy Das <nirmoy....@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
index fa575bdc03c8..8f1e3c05812e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
@@ -121,12 +121,17 @@ static int amdgpu_ctx_init_entity(struct amdgpu_ctx *ctx, 
const u32 hw_ip, const
                        num_scheds = 1;
                        break;
                case AMDGPU_HW_IP_VCN_DEC:
-                       scheds = adev->vcn.vcn_dec_sched;
                        num_scheds =  adev->vcn.num_vcn_dec_sched;
+                       sched = drm_sched_pick_best(adev->vcn.vcn_dec_sched,
+                                                   num_scheds);
+                       scheds = &sched;
                        break;
                case AMDGPU_HW_IP_VCN_ENC:
                        scheds = adev->vcn.vcn_enc_sched;
                        num_scheds =  adev->vcn.num_vcn_enc_sched;
+                       sched = drm_sched_pick_best(adev->vcn.vcn_enc_sched,
+                                                   num_scheds);
+                       scheds = &sched;
                        break;
                case AMDGPU_HW_IP_VCN_JPEG:
                        scheds = adev->jpeg.jpeg_sched;
-- 
2.25.0

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