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From 65eeb8fd02011de3e023be0569a727c420ef2340 Mon Sep 17 00:00:00 2001
From: Chunming Zhou <David1.Zhou@amd.com>
Date: Fri, 15 Jan 2016 11:12:42 +0800
Subject: [PATCH 0226/1110] drm/amdgpu: cleanup amdgpu_sync_rings V2
No longer needed now that semaphores are gone.
V2: remove the first amdgpu_sync_wait in amdgpu_ib_schedule
Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com> (V1)
Reviewed-by: Monk Liu <monk.liu@amd.com> (V2)
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 --
drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c | 10 +++-----
drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c | 42 --------------------------------
3 files changed, 3 insertions(+), 51 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 2d6e17d..1ab88b5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -614,8 +614,6 @@ int amdgpu_sync_resv(struct amdgpu_device *adev,
struct amdgpu_sync *sync,
struct reservation_object *resv,
void *owner);
-int amdgpu_sync_rings(struct amdgpu_sync *sync,
- struct amdgpu_ring *ring);
struct fence *amdgpu_sync_get_fence(struct amdgpu_sync *sync);
int amdgpu_sync_wait(struct amdgpu_sync *sync);
void amdgpu_sync_free(struct amdgpu_device *adev, struct amdgpu_sync *sync,
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
index 9e25eda..3b58d70 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
@@ -141,11 +141,7 @@ int amdgpu_ib_schedule(struct amdgpu_device *adev, unsigned num_ibs,
dev_err(adev->dev, "couldn't schedule ib\n");
return -EINVAL;
}
- r = amdgpu_sync_wait(&ibs->sync);
- if (r) {
- dev_err(adev->dev, "IB sync failed (%d).\n", r);
- return r;
- }
+
r = amdgpu_ring_lock(ring, (256 + AMDGPU_NUM_SYNCS * 8) * num_ibs);
if (r) {
dev_err(adev->dev, "scheduling IB failed (%d).\n", r);
@@ -161,10 +157,10 @@ int amdgpu_ib_schedule(struct amdgpu_device *adev, unsigned num_ibs,
}
}
- r = amdgpu_sync_rings(&ibs->sync, ring);
+ r = amdgpu_sync_wait(&ibs->sync);
if (r) {
amdgpu_ring_unlock_undo(ring);
- dev_err(adev->dev, "failed to sync rings (%d)\n", r);
+ dev_err(adev->dev, "failed to sync wait (%d)\n", r);
return r;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
index a6fee51..7f12a4d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
@@ -261,48 +261,6 @@ int amdgpu_sync_wait(struct amdgpu_sync *sync)
}
/**
- * amdgpu_sync_rings - sync ring to all registered fences
- *
- * @sync: sync object to use
- * @ring: ring that needs sync
- *
- * Ensure that all registered fences are signaled before letting
- * the ring continue. The caller must hold the ring lock.
- */
-int amdgpu_sync_rings(struct amdgpu_sync *sync,
- struct amdgpu_ring *ring)
-{
- struct amdgpu_device *adev = ring->adev;
- int i, r;
-
- for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
- struct amdgpu_ring *other = adev->rings[i];
- struct amdgpu_fence *fence;
-
- if (!sync->sync_to[i])
- continue;
-
- fence = to_amdgpu_fence(sync->sync_to[i]);
-
- /* prevent GPU deadlocks */
- if (!other->ready) {
- dev_err(adev->dev, "Syncing to a disabled ring!");
- return -EINVAL;
- }
-
- if (amdgpu_enable_scheduler) {
- r = fence_wait(sync->sync_to[i], true);
- if (r)
- return r;
- continue;
- }
-
- }
-
- return 0;
-}
-
-/**
* amdgpu_sync_free - free the sync object
*
* @adev: amdgpu_device pointer
--
2.7.4
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