diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-09-11 04:34:46 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-09-11 04:34:46 -0300 |
commit | 863981e96738983919de841ec669e157e6bdaeb0 (patch) | |
tree | d6d89a12e7eb8017837c057935a2271290907f76 /drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | |
parent | 8dec7c70575785729a6a9e6719a955e9c545bcab (diff) |
Linux-libre 4.7.1-gnupck-4.7.1-gnu
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c')
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | 35 |
1 files changed, 19 insertions, 16 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c index d81f1f488..d1558768c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c @@ -55,8 +55,21 @@ struct amdgpu_fence { }; static struct kmem_cache *amdgpu_fence_slab; -static atomic_t amdgpu_fence_slab_ref = ATOMIC_INIT(0); +int amdgpu_fence_slab_init(void) +{ + amdgpu_fence_slab = kmem_cache_create( + "amdgpu_fence", sizeof(struct amdgpu_fence), 0, + SLAB_HWCACHE_ALIGN, NULL); + if (!amdgpu_fence_slab) + return -ENOMEM; + return 0; +} + +void amdgpu_fence_slab_fini(void) +{ + kmem_cache_destroy(amdgpu_fence_slab); +} /* * Cast helper */ @@ -198,7 +211,7 @@ void amdgpu_fence_process(struct amdgpu_ring *ring) /* There is always exactly one thread signaling this fence slot */ fence = rcu_dereference_protected(*ptr, 1); - rcu_assign_pointer(*ptr, NULL); + RCU_INIT_POINTER(*ptr, NULL); BUG_ON(!fence); @@ -352,9 +365,9 @@ int amdgpu_fence_driver_init_ring(struct amdgpu_ring *ring, setup_timer(&ring->fence_drv.fallback_timer, amdgpu_fence_fallback, (unsigned long)ring); - ring->fence_drv.num_fences_mask = num_hw_submission - 1; + ring->fence_drv.num_fences_mask = num_hw_submission * 2 - 1; spin_lock_init(&ring->fence_drv.lock); - ring->fence_drv.fences = kcalloc(num_hw_submission, sizeof(void *), + ring->fence_drv.fences = kcalloc(num_hw_submission * 2, sizeof(void *), GFP_KERNEL); if (!ring->fence_drv.fences) return -ENOMEM; @@ -396,13 +409,6 @@ int amdgpu_fence_driver_init_ring(struct amdgpu_ring *ring, */ int amdgpu_fence_driver_init(struct amdgpu_device *adev) { - if (atomic_inc_return(&amdgpu_fence_slab_ref) == 1) { - amdgpu_fence_slab = kmem_cache_create( - "amdgpu_fence", sizeof(struct amdgpu_fence), 0, - SLAB_HWCACHE_ALIGN, NULL); - if (!amdgpu_fence_slab) - return -ENOMEM; - } if (amdgpu_debugfs_fence_init(adev)) dev_err(adev->dev, "fence debugfs file creation failed\n"); @@ -437,13 +443,10 @@ void amdgpu_fence_driver_fini(struct amdgpu_device *adev) amd_sched_fini(&ring->sched); del_timer_sync(&ring->fence_drv.fallback_timer); for (j = 0; j <= ring->fence_drv.num_fences_mask; ++j) - fence_put(ring->fence_drv.fences[i]); + fence_put(ring->fence_drv.fences[j]); kfree(ring->fence_drv.fences); ring->fence_drv.initialized = false; } - - if (atomic_dec_and_test(&amdgpu_fence_slab_ref)) - kmem_cache_destroy(amdgpu_fence_slab); } /** @@ -639,7 +642,7 @@ static int amdgpu_debugfs_gpu_reset(struct seq_file *m, void *data) return 0; } -static struct drm_info_list amdgpu_debugfs_fence_list[] = { +static const struct drm_info_list amdgpu_debugfs_fence_list[] = { {"amdgpu_fence_info", &amdgpu_debugfs_fence_info, 0, NULL}, {"amdgpu_gpu_reset", &amdgpu_debugfs_gpu_reset, 0, NULL} }; |