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From 4daaf81885958741dd2b113f080f935bf13889de Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Wed, 10 Feb 2016 14:20:50 +0100
Subject: [PATCH 0305/1110] drm/amdgpu: use separate scheduler entitiy for
buffer moves
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This allows us to remove the global kernel context.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Kalyan Alle <kalyan.alle@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 ++
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 16 ++++++++++++++++
2 files changed, 18 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index fd00d29..a6b4b03 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -417,6 +417,8 @@ struct amdgpu_mman {
/* buffer handling */
const struct amdgpu_buffer_funcs *buffer_funcs;
struct amdgpu_ring *buffer_funcs_ring;
+ /* Scheduler entity for buffer moves */
+ struct amd_sched_entity entity;
};
int amdgpu_copy_buffer(struct amdgpu_ring *ring,
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 7355007..e5a684e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -77,6 +77,8 @@ static void amdgpu_ttm_mem_global_release(struct drm_global_reference *ref)
static int amdgpu_ttm_global_init(struct amdgpu_device *adev)
{
struct drm_global_reference *global_ref;
+ struct amdgpu_ring *ring;
+ struct amd_sched_rq *rq;
int r;
adev->mman.mem_global_referenced = false;
@@ -106,13 +108,27 @@ static int amdgpu_ttm_global_init(struct amdgpu_device *adev)
return r;
}
+ ring = adev->mman.buffer_funcs_ring;
+ rq = &ring->sched.sched_rq[AMD_SCHED_PRIORITY_KERNEL];
+ r = amd_sched_entity_init(&ring->sched, &adev->mman.entity,
+ rq, amdgpu_sched_jobs);
+ if (r != 0) {
+ DRM_ERROR("Failed setting up TTM BO move run queue.\n");
+ drm_global_item_unref(&adev->mman.mem_global_ref);
+ drm_global_item_unref(&adev->mman.bo_global_ref.ref);
+ return r;
+ }
+
adev->mman.mem_global_referenced = true;
+
return 0;
}
static void amdgpu_ttm_global_fini(struct amdgpu_device *adev)
{
if (adev->mman.mem_global_referenced) {
+ amd_sched_entity_fini(adev->mman.entity.sched,
+ &adev->mman.entity);
drm_global_item_unref(&adev->mman.bo_global_ref.ref);
drm_global_item_unref(&adev->mman.mem_global_ref);
adev->mman.mem_global_referenced = false;
--
2.7.4
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