Re: [PATCH] drm/amdgpu: Move fence SW fallback warning.

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Am 24.09.2018 um 21:32 schrieb Andrey Grodzovsky:
Only print the warning if there was actually some fence processed
from the SW fallback timer.

Well that is a wider change than I expected.

Maybe we could let amdgpu_fence_process() return if it processed something instead?

Most callers can then ignore that and only amdgpu_fence_fallback() prints the warning.

Christian.


Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@xxxxxxx>
---
  drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | 17 ++++++++++-------
  drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h  |  2 +-
  drivers/gpu/drm/amd/amdgpu/cik_sdma.c     |  4 ++--
  drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c     |  4 ++--
  drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c     |  4 ++--
  drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c     |  6 +++---
  drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c     |  6 +++---
  drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c    |  4 ++--
  drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c    |  4 ++--
  drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c    |  4 ++--
  drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c     |  2 +-
  drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c     |  2 +-
  drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c     |  6 +++---
  drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c     |  6 +++---
  drivers/gpu/drm/amd/amdgpu/vce_v2_0.c     |  2 +-
  drivers/gpu/drm/amd/amdgpu/vce_v3_0.c     |  2 +-
  drivers/gpu/drm/amd/amdgpu/vce_v4_0.c     |  2 +-
  drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c     |  8 ++++----
  18 files changed, 44 insertions(+), 41 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
index 4e6e9c9..837f9cf 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
@@ -217,9 +217,10 @@ static void amdgpu_fence_schedule_fallback(struct amdgpu_ring *ring)
   * signalled fence value. Wakes the fence queue if the
   * sequence number has increased.
   */
-void amdgpu_fence_process(struct amdgpu_ring *ring)
+void amdgpu_fence_process(struct amdgpu_ring *ring, bool sw_fallbak)
  {
  	struct amdgpu_fence_driver *drv = &ring->fence_drv;
+	struct dma_fence *fence = NULL;
  	uint32_t seq, last_seq;
  	int r;
@@ -240,7 +241,7 @@ void amdgpu_fence_process(struct amdgpu_ring *ring)
  	seq &= drv->num_fences_mask;
do {
-		struct dma_fence *fence, **ptr;
+		struct dma_fence **ptr;
++last_seq;
  		last_seq &= drv->num_fences_mask;
@@ -261,6 +262,9 @@ void amdgpu_fence_process(struct amdgpu_ring *ring)
dma_fence_put(fence);
  	} while (last_seq != seq);
+
+	if (sw_fallbak && fence)
+		DRM_WARN("Fence fallback timer expired on ring %s\n", ring->name);
  }
/**
@@ -275,8 +279,7 @@ static void amdgpu_fence_fallback(struct timer_list *t)
  	struct amdgpu_ring *ring = from_timer(ring, t,
  					      fence_drv.fallback_timer);
- DRM_WARN("Fence fallback timer expired on ring %s\n", ring->name);
-	amdgpu_fence_process(ring);
+	amdgpu_fence_process(ring , true);
  }
/**
@@ -351,7 +354,7 @@ unsigned amdgpu_fence_count_emitted(struct amdgpu_ring *ring)
  	/* We are not protected by ring lock when reading the last sequence
  	 * but it's ok to report slightly wrong fence count here.
  	 */
-	amdgpu_fence_process(ring);
+	amdgpu_fence_process(ring, false);
  	emitted = 0x100000000ull;
  	emitted -= atomic_read(&ring->fence_drv.last_seq);
  	emitted += READ_ONCE(ring->fence_drv.sync_seq);
@@ -578,7 +581,7 @@ void amdgpu_fence_driver_resume(struct amdgpu_device *adev)
  void amdgpu_fence_driver_force_completion(struct amdgpu_ring *ring)
  {
  	amdgpu_fence_write(ring, ring->fence_drv.sync_seq);
-	amdgpu_fence_process(ring);
+	amdgpu_fence_process(ring, false);
  }
/*
@@ -667,7 +670,7 @@ static int amdgpu_debugfs_fence_info(struct seq_file *m, void *data)
  		if (!ring || !ring->fence_drv.initialized)
  			continue;
- amdgpu_fence_process(ring);
+		amdgpu_fence_process(ring, false);
seq_printf(m, "--- ring %d (%s) ---\n", i, ring->name);
  		seq_printf(m, "Last signaled fence 0x%08x\n",
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
index 9cc2399..85956f3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
@@ -97,7 +97,7 @@ void amdgpu_fence_driver_resume(struct amdgpu_device *adev);
  int amdgpu_fence_emit(struct amdgpu_ring *ring, struct dma_fence **fence,
  		      unsigned flags);
  int amdgpu_fence_emit_polling(struct amdgpu_ring *ring, uint32_t *s);
-void amdgpu_fence_process(struct amdgpu_ring *ring);
+void amdgpu_fence_process(struct amdgpu_ring *ring, bool sw_fallbak);
  int amdgpu_fence_wait_empty(struct amdgpu_ring *ring);
  signed long amdgpu_fence_wait_polling(struct amdgpu_ring *ring,
  				      uint32_t wait_seq,
diff --git a/drivers/gpu/drm/amd/amdgpu/cik_sdma.c b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
index 154b149..c162055 100644
--- a/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
+++ b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
@@ -1182,7 +1182,7 @@ static int cik_sdma_process_trap_irq(struct amdgpu_device *adev,
  	case 0:
  		switch (queue_id) {
  		case 0:
-			amdgpu_fence_process(&adev->sdma.instance[0].ring);
+			amdgpu_fence_process(&adev->sdma.instance[0].ring, false);
  			break;
  		case 1:
  			/* XXX compute */
@@ -1195,7 +1195,7 @@ static int cik_sdma_process_trap_irq(struct amdgpu_device *adev,
  	case 1:
  		switch (queue_id) {
  		case 0:
-			amdgpu_fence_process(&adev->sdma.instance[1].ring);
+			amdgpu_fence_process(&adev->sdma.instance[1].ring, false);
  			break;
  		case 1:
  			/* XXX compute */
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c
index de184a8..85a88db 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c
@@ -3381,11 +3381,11 @@ static int gfx_v6_0_eop_irq(struct amdgpu_device *adev,
  {
  	switch (entry->ring_id) {
  	case 0:
-		amdgpu_fence_process(&adev->gfx.gfx_ring[0]);
+		amdgpu_fence_process(&adev->gfx.gfx_ring[0], false);
  		break;
  	case 1:
  	case 2:
-		amdgpu_fence_process(&adev->gfx.compute_ring[entry->ring_id - 1]);
+		amdgpu_fence_process(&adev->gfx.compute_ring[entry->ring_id - 1], false);
  		break;
  	default:
  		break;
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
index fc39ebb..99cc0b6 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
@@ -4945,14 +4945,14 @@ static int gfx_v7_0_eop_irq(struct amdgpu_device *adev,
  	pipe_id = (entry->ring_id & 0x03) >> 0;
  	switch (me_id) {
  	case 0:
-		amdgpu_fence_process(&adev->gfx.gfx_ring[0]);
+		amdgpu_fence_process(&adev->gfx.gfx_ring[0], false);
  		break;
  	case 1:
  	case 2:
  		for (i = 0; i < adev->gfx.num_compute_rings; i++) {
  			ring = &adev->gfx.compute_ring[i];
  			if ((ring->me == me_id) && (ring->pipe == pipe_id))
-				amdgpu_fence_process(ring);
+				amdgpu_fence_process(ring, false);
  		}
  		break;
  	}
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 470dc80..fff77e3 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -6870,7 +6870,7 @@ static int gfx_v8_0_eop_irq(struct amdgpu_device *adev,
switch (me_id) {
  	case 0:
-		amdgpu_fence_process(&adev->gfx.gfx_ring[0]);
+		amdgpu_fence_process(&adev->gfx.gfx_ring[0], false);
  		break;
  	case 1:
  	case 2:
@@ -6880,7 +6880,7 @@ static int gfx_v8_0_eop_irq(struct amdgpu_device *adev,
  			  * The interrupt can only be enabled/disabled per pipe instead of per queue.
  			  */
  			if ((ring->me == me_id) && (ring->pipe == pipe_id) && (ring->queue == queue_id))
-				amdgpu_fence_process(ring);
+				amdgpu_fence_process(ring, false);
  		}
  		break;
  	}
@@ -7055,7 +7055,7 @@ static int gfx_v8_0_kiq_irq(struct amdgpu_device *adev,
  	DRM_DEBUG("IH: CPC GENERIC2_INT, me:%d, pipe:%d, queue:%d\n",
  		   me_id, pipe_id, queue_id);
- amdgpu_fence_process(ring);
+	amdgpu_fence_process(ring, false);
  	return 0;
  }
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index f369d96..4b04ab4 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -4574,7 +4574,7 @@ static int gfx_v9_0_eop_irq(struct amdgpu_device *adev,
switch (me_id) {
  	case 0:
-		amdgpu_fence_process(&adev->gfx.gfx_ring[0]);
+		amdgpu_fence_process(&adev->gfx.gfx_ring[0], false);
  		break;
  	case 1:
  	case 2:
@@ -4584,7 +4584,7 @@ static int gfx_v9_0_eop_irq(struct amdgpu_device *adev,
  			  * The interrupt can only be enabled/disabled per pipe instead of per queue.
  			  */
  			if ((ring->me == me_id) && (ring->pipe == pipe_id) && (ring->queue == queue_id))
-				amdgpu_fence_process(ring);
+				amdgpu_fence_process(ring, false);
  		}
  		break;
  	}
@@ -4667,7 +4667,7 @@ static int gfx_v9_0_kiq_irq(struct amdgpu_device *adev,
  	DRM_DEBUG("IH: CPC GENERIC2_INT, me:%d, pipe:%d, queue:%d\n",
  		   me_id, pipe_id, queue_id);
- amdgpu_fence_process(ring);
+	amdgpu_fence_process(ring, false);
  	return 0;
  }
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c b/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
index c403bdf..011d680 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
@@ -1116,7 +1116,7 @@ static int sdma_v2_4_process_trap_irq(struct amdgpu_device *adev,
  	case 0:
  		switch (queue_id) {
  		case 0:
-			amdgpu_fence_process(&adev->sdma.instance[0].ring);
+			amdgpu_fence_process(&adev->sdma.instance[0].ring, false);
  			break;
  		case 1:
  			/* XXX compute */
@@ -1129,7 +1129,7 @@ static int sdma_v2_4_process_trap_irq(struct amdgpu_device *adev,
  	case 1:
  		switch (queue_id) {
  		case 0:
-			amdgpu_fence_process(&adev->sdma.instance[1].ring);
+			amdgpu_fence_process(&adev->sdma.instance[1].ring, false);
  			break;
  		case 1:
  			/* XXX compute */
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
index 2677d6a..9dd2cba 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c
@@ -1452,7 +1452,7 @@ static int sdma_v3_0_process_trap_irq(struct amdgpu_device *adev,
  	case 0:
  		switch (queue_id) {
  		case 0:
-			amdgpu_fence_process(&adev->sdma.instance[0].ring);
+			amdgpu_fence_process(&adev->sdma.instance[0].ring, false);
  			break;
  		case 1:
  			/* XXX compute */
@@ -1465,7 +1465,7 @@ static int sdma_v3_0_process_trap_irq(struct amdgpu_device *adev,
  	case 1:
  		switch (queue_id) {
  		case 0:
-			amdgpu_fence_process(&adev->sdma.instance[1].ring);
+			amdgpu_fence_process(&adev->sdma.instance[1].ring, false);
  			break;
  		case 1:
  			/* XXX compute */
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
index 9da4a1b..85dc58b 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
@@ -1465,7 +1465,7 @@ static int sdma_v4_0_process_trap_irq(struct amdgpu_device *adev,
  	case SOC15_IH_CLIENTID_SDMA0:
  		switch (entry->ring_id) {
  		case 0:
-			amdgpu_fence_process(&adev->sdma.instance[0].ring);
+			amdgpu_fence_process(&adev->sdma.instance[0].ring, false);
  			break;
  		case 1:
  			/* XXX compute */
@@ -1481,7 +1481,7 @@ static int sdma_v4_0_process_trap_irq(struct amdgpu_device *adev,
  	case SOC15_IH_CLIENTID_SDMA1:
  		switch (entry->ring_id) {
  		case 0:
-			amdgpu_fence_process(&adev->sdma.instance[1].ring);
+			amdgpu_fence_process(&adev->sdma.instance[1].ring, false);
  			break;
  		case 1:
  			/* XXX compute */
diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c b/drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c
index 8a926d1..2223265 100644
--- a/drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c
+++ b/drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c
@@ -681,7 +681,7 @@ static int uvd_v4_2_process_interrupt(struct amdgpu_device *adev,
  				      struct amdgpu_iv_entry *entry)
  {
  	DRM_DEBUG("IH: UVD TRAP\n");
-	amdgpu_fence_process(&adev->uvd.inst->ring);
+	amdgpu_fence_process(&adev->uvd.inst->ring, false);
  	return 0;
  }
diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c
index 5024805..1fc587c 100644
--- a/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c
@@ -604,7 +604,7 @@ static int uvd_v5_0_process_interrupt(struct amdgpu_device *adev,
  				      struct amdgpu_iv_entry *entry)
  {
  	DRM_DEBUG("IH: UVD TRAP\n");
-	amdgpu_fence_process(&adev->uvd.inst->ring);
+	amdgpu_fence_process(&adev->uvd.inst->ring, false);
  	return 0;
  }
diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
index 6ae82cc..ca0f977 100644
--- a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
@@ -1234,17 +1234,17 @@ static int uvd_v6_0_process_interrupt(struct amdgpu_device *adev,
switch (entry->src_id) {
  	case 124:
-		amdgpu_fence_process(&adev->uvd.inst->ring);
+		amdgpu_fence_process(&adev->uvd.inst->ring, false);
  		break;
  	case 119:
  		if (likely(uvd_v6_0_enc_support(adev)))
-			amdgpu_fence_process(&adev->uvd.inst->ring_enc[0]);
+			amdgpu_fence_process(&adev->uvd.inst->ring_enc[0], false);
  		else
  			int_handled = false;
  		break;
  	case 120:
  		if (likely(uvd_v6_0_enc_support(adev)))
-			amdgpu_fence_process(&adev->uvd.inst->ring_enc[1]);
+			amdgpu_fence_process(&adev->uvd.inst->ring_enc[1], false);
  		else
  			int_handled = false;
  		break;
diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c
index a289f6a..e57755b 100644
--- a/drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c
@@ -1569,14 +1569,14 @@ static int uvd_v7_0_process_interrupt(struct amdgpu_device *adev,
switch (entry->src_id) {
  	case 124:
-		amdgpu_fence_process(&adev->uvd.inst[ip_instance].ring);
+		amdgpu_fence_process(&adev->uvd.inst[ip_instance].ring, false);
  		break;
  	case 119:
-		amdgpu_fence_process(&adev->uvd.inst[ip_instance].ring_enc[0]);
+		amdgpu_fence_process(&adev->uvd.inst[ip_instance].ring_enc[0], false);
  		break;
  	case 120:
  		if (!amdgpu_sriov_vf(adev))
-			amdgpu_fence_process(&adev->uvd.inst[ip_instance].ring_enc[1]);
+			amdgpu_fence_process(&adev->uvd.inst[ip_instance].ring_enc[1], false);
  		break;
  	default:
  		DRM_ERROR("Unhandled interrupt: %d %d\n",
diff --git a/drivers/gpu/drm/amd/amdgpu/vce_v2_0.c b/drivers/gpu/drm/amd/amdgpu/vce_v2_0.c
index 7eaa54b..a25cced 100644
--- a/drivers/gpu/drm/amd/amdgpu/vce_v2_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vce_v2_0.c
@@ -540,7 +540,7 @@ static int vce_v2_0_process_interrupt(struct amdgpu_device *adev,
  	switch (entry->src_data[0]) {
  	case 0:
  	case 1:
-		amdgpu_fence_process(&adev->vce.ring[entry->src_data[0]]);
+		amdgpu_fence_process(&adev->vce.ring[entry->src_data[0]], false);
  		break;
  	default:
  		DRM_ERROR("Unhandled interrupt: %d %d\n",
diff --git a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c
index c8390f9a..deb8765 100644
--- a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c
@@ -730,7 +730,7 @@ static int vce_v3_0_process_interrupt(struct amdgpu_device *adev,
  	case 0:
  	case 1:
  	case 2:
-		amdgpu_fence_process(&adev->vce.ring[entry->src_data[0]]);
+		amdgpu_fence_process(&adev->vce.ring[entry->src_data[0]], false);
  		break;
  	default:
  		DRM_ERROR("Unhandled interrupt: %d %d\n",
diff --git a/drivers/gpu/drm/amd/amdgpu/vce_v4_0.c b/drivers/gpu/drm/amd/amdgpu/vce_v4_0.c
index 1c94718..0c1549b 100644
--- a/drivers/gpu/drm/amd/amdgpu/vce_v4_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vce_v4_0.c
@@ -1034,7 +1034,7 @@ static int vce_v4_0_process_interrupt(struct amdgpu_device *adev,
  	case 0:
  	case 1:
  	case 2:
-		amdgpu_fence_process(&adev->vce.ring[entry->src_data[0]]);
+		amdgpu_fence_process(&adev->vce.ring[entry->src_data[0]], false);
  		break;
  	default:
  		DRM_ERROR("Unhandled interrupt: %d %d\n",
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
index 2cde0b4..42ac02b 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
@@ -1590,16 +1590,16 @@ static int vcn_v1_0_process_interrupt(struct amdgpu_device *adev,
switch (entry->src_id) {
  	case 124:
-		amdgpu_fence_process(&adev->vcn.ring_dec);
+		amdgpu_fence_process(&adev->vcn.ring_dec, false);
  		break;
  	case 119:
-		amdgpu_fence_process(&adev->vcn.ring_enc[0]);
+		amdgpu_fence_process(&adev->vcn.ring_enc[0], false);
  		break;
  	case 120:
-		amdgpu_fence_process(&adev->vcn.ring_enc[1]);
+		amdgpu_fence_process(&adev->vcn.ring_enc[1], false);
  		break;
  	case 126:
-		amdgpu_fence_process(&adev->vcn.ring_jpeg);
+		amdgpu_fence_process(&adev->vcn.ring_jpeg, false);
  		break;
  	default:
  		DRM_ERROR("Unhandled interrupt: %d %d\n",

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