[PATCH 3/3] drm/amdgpu:invoke CSA functions

[Monk.Liu@xxxxxxx (Monk Liu)]

Change-Id: I110af93c4f17ab18d1be199c6ebe9ee965483a66
Signed-off-by: Monk Liu <Monk.Liu at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c     | 14 ++++++++++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 12 ++++++++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c    |  6 ++++++
 drivers/gpu/drm/amd/amdgpu/vi.c            |  3 +++
 4 files changed, 35 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 6159afc..083ab73 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -771,6 +771,20 @@ static int amdgpu_bo_vm_update_pte(struct amdgpu_cs_parser *p,
 	if (r)
 		return r;
 
+	if (amdgpu_sriov_vf(adev)) {
+		struct fence *f;
+		bo_va = vm->vm_virt.csa_bo_va;
+		BUG_ON(!bo_va);
+		r = amdgpu_vm_bo_update(adev, bo_va, false);
+		if (r)
+			return r;
+
+		f = bo_va->last_pt_update;
+		r = amdgpu_sync_fence(adev, &p->job->sync, f);
+		if (r)
+			return r;
+	}
+
 	if (p->bo_list) {
 		for (i = 0; i < p->bo_list->num_entries; i++) {
 			struct fence *f;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index f82919d..21b757c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1384,6 +1384,15 @@ static int amdgpu_init(struct amdgpu_device *adev)
 				return r;
 			}
 			adev->ip_blocks[i].status.hw = true;
+
+			/* right after GMC hw init, we create CSA */
+			if (amdgpu_sriov_vf(adev)) {
+				r = amdgpu_allocate_static_csa(adev);
+				if (r) {
+					DRM_ERROR("allocate CSA failed %d\n", r);
+					return r;
+				}
+			}
 		}
 	}
 
@@ -1517,6 +1526,9 @@ static int amdgpu_fini(struct amdgpu_device *adev)
 		adev->ip_blocks[i].status.late_initialized = false;
 	}
 
+	if (amdgpu_sriov_vf(adev))
+		amdgpu_deallocate_static_csa(adev);
+
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index 47bc8e1..9b37317 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -650,6 +650,12 @@ int amdgpu_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
 		goto out_suspend;
 	}
 
+	if (amdgpu_sriov_vf(adev)) {
+		r = amdgpu_map_static_csa(adev, &fpriv->vm);
+		if (r)
+			goto out_suspend;
+	}
+
 	mutex_init(&fpriv->bo_list_lock);
 	idr_init(&fpriv->bo_list_handles);
 
diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c
index 7350a8f..921917b 100644
--- a/drivers/gpu/drm/amd/amdgpu/vi.c
+++ b/drivers/gpu/drm/amd/amdgpu/vi.c
@@ -455,6 +455,9 @@ static void vi_detect_hw_virtualization(struct amdgpu_device *adev)
 		if (is_virtual_machine()) /* passthrough mode exclus sr-iov mode */
 			adev->virt.caps |= AMDGPU_PASSTHROUGH_MODE;
 	}
+
+	if (amdgpu_sriov_vf(adev))
+		adev->virt.csa_size = 8 * 1024; /* two page now for VI and AI */
 }
 
 static const struct amdgpu_allowed_register_entry tonga_allowed_read_registers[] = {
-- 
2.7.4