Couldn't only rely on enc fence to decide switching to dpg unpaude mode.
Since a enc thread may not schedule a fence in time during multiple
threads running situation.
Signed-off-by: James Zhu <James.Zhu@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c | 12 +++++++++---
drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h | 1 +
2 files changed, 10 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
index aa7663f..28ef11c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
@@ -64,6 +64,8 @@ int amdgpu_vcn_sw_init(struct amdgpu_device *adev)
INIT_DELAYED_WORK(&adev->vcn.idle_work, amdgpu_vcn_idle_work_handler);
mutex_init(&adev->vcn.vcn_pg_lock);
+ for (i = 0; i < adev->vcn.num_vcn_inst; i++)
+ atomic_set(&adev->vcn.inst[i].enc_submission_cnt, 0);
switch (adev->asic_type) {
case CHIP_RAVEN:
@@ -338,14 +340,15 @@ void amdgpu_vcn_ring_begin_use(struct amdgpu_ring *ring)
for (i = 0; i < adev->vcn.num_enc_rings; ++i) {
fences += amdgpu_fence_count_emitted(&adev->vcn.inst[ring->me].ring_enc[i]);
}
- if (fences)
+ if (fences || atomic_read(&adev->vcn.inst[ring->me].enc_submission_cnt))
new_state.fw_based = VCN_DPG_STATE__PAUSE;
else
new_state.fw_based = VCN_DPG_STATE__UNPAUSE;
- if (ring->funcs->type == AMDGPU_RING_TYPE_VCN_ENC)
+ if (ring->funcs->type == AMDGPU_RING_TYPE_VCN_ENC) {
+ atomic_inc(&adev->vcn.inst[ring->me].enc_submission_cnt);
new_state.fw_based = VCN_DPG_STATE__PAUSE;
-
+ }
adev->vcn.pause_dpg_mode(adev, ring->me, &new_state);
}
mutex_unlock(&adev->vcn.vcn_pg_lock);
@@ -354,6 +357,9 @@ void amdgpu_vcn_ring_begin_use(struct amdgpu_ring *ring)
void amdgpu_vcn_ring_end_use(struct amdgpu_ring *ring)
{
schedule_delayed_work(&ring->adev->vcn.idle_work, VCN_IDLE_TIMEOUT);
+ if (ring->funcs->type == AMDGPU_RING_TYPE_VCN_ENC &&
+ atomic_dec_return(&ring->adev->vcn.inst[ring->me].enc_submission_cnt) < 0)
+ atomic_set(&ring->adev->vcn.inst[ring->me].enc_submission_cnt, 0);
}
int amdgpu_vcn_dec_ring_test_ring(struct amdgpu_ring *ring)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h
index 2ae110d..4ca76c4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h
@@ -183,6 +183,7 @@ struct amdgpu_vcn_inst {
void *dpg_sram_cpu_addr;
uint64_t dpg_sram_gpu_addr;
uint32_t *dpg_sram_curr_addr;
+ atomic_t enc_submission_cnt;
};
struct amdgpu_vcn {
--
2.7.4
_______________________________________________
amd-gfx mailing list
amd-gfx@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
