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....@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c | 28 ++++++++++++++++++----------
drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h | 1 +
2 files changed, 19 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
index aa7663f..74cefc7 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:
@@ -332,19 +334,22 @@ void amdgpu_vcn_ring_begin_use(struct amdgpu_ring *ring)
if (adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) {
struct dpg_pause_state new_state;
- unsigned int fences = 0;
- unsigned int i;
- 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 (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;
- else
- new_state.fw_based = VCN_DPG_STATE__UNPAUSE;
+ } else {
+ unsigned int fences = 0;
+ unsigned int i;
- if (ring->funcs->type == AMDGPU_RING_TYPE_VCN_ENC)
- new_state.fw_based = VCN_DPG_STATE__PAUSE;
+ 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 ||
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;
+ }
adev->vcn.pause_dpg_mode(adev, ring->me, &new_state);
}
@@ -354,6 +359,9 @@ 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
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