On 3/13/20 3:03 PM, Christian König wrote:
Am 13.03.20 um 14:59 schrieb Nirmoy Das:
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.das@xxxxxxx>
---
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;
num_scheds need to be set to 1 here and above.
Right or else it would've caused NULL exception.
Thanks,
Nirmoy
And maybe add a separate patch to fix the indentation of the case labels.
Christian.
break;
case AMDGPU_HW_IP_VCN_JPEG:
scheds = adev->jpeg.jpeg_sched;
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