[PATCH libdrm 2/2] amdgpu: sanitize 64bit VA manager

[Christian König]

Adding the extra reservation of the 32bit space to the 64bit manager is
complete nonsense and just a waste of memory and CPU cycles.

Signed-off-by: Christian König <christian.koenig at amd.com>
---
 amdgpu/amdgpu_device.c   | 24 ++++++------------------
 amdgpu/amdgpu_internal.h |  7 -------
 amdgpu/amdgpu_vamgr.c    |  4 ++--
 3 files changed, 8 insertions(+), 27 deletions(-)

diff --git a/amdgpu/amdgpu_device.c b/amdgpu/amdgpu_device.c
index 2b31c45b..344e87ed 100644
--- a/amdgpu/amdgpu_device.c
+++ b/amdgpu/amdgpu_device.c
@@ -270,22 +270,16 @@ int amdgpu_device_initialize(int fd,
 		goto cleanup;
 	}
 
-	amdgpu_vamgr_init(&dev->vamgr, dev->dev_info.virtual_address_offset,
-			  dev->dev_info.virtual_address_max,
-			  dev->dev_info.virtual_address_alignment);
-
+	start = dev->dev_info.virtual_address_offset;
 	max = MIN2(dev->dev_info.virtual_address_max, 0xffffffff);
-	start = amdgpu_vamgr_find_va(&dev->vamgr,
-				     max - dev->dev_info.virtual_address_offset,
-				     dev->dev_info.virtual_address_alignment, 0);
-	if (start > 0xffffffff) {
-		fprintf(stderr, "%s: amdgpu_vamgr_find_va failed\n", __func__);
-		goto free_va; /* shouldn't get here */
-	}
-
 	amdgpu_vamgr_init(&dev->vamgr_32, start, max,
 			  dev->dev_info.virtual_address_alignment);
 
+	start = MAX2(dev->dev_info.virtual_address_offset, 0x100000000ULL);
+	max = MAX2(dev->dev_info.virtual_address_max, 0x100000000ULL);
+	amdgpu_vamgr_init(&dev->vamgr, start, max,
+			  dev->dev_info.virtual_address_alignment);
+
 	r = amdgpu_parse_asic_ids(&dev->asic_ids);
 	if (r) {
 		fprintf(stderr, "%s: Cannot parse ASIC IDs, 0x%x.",
@@ -300,12 +294,6 @@ int amdgpu_device_initialize(int fd,
 
 	return 0;
 
-free_va:
-	r = -ENOMEM;
-	amdgpu_vamgr_free_va(&dev->vamgr, start,
-			     max - dev->dev_info.virtual_address_offset);
-	amdgpu_vamgr_deinit(&dev->vamgr);
-
 cleanup:
 	if (dev->fd >= 0)
 		close(dev->fd);
diff --git a/amdgpu/amdgpu_internal.h b/amdgpu/amdgpu_internal.h
index 56d15112..e26e5190 100644
--- a/amdgpu/amdgpu_internal.h
+++ b/amdgpu/amdgpu_internal.h
@@ -148,13 +148,6 @@ drm_private void amdgpu_vamgr_init(struct amdgpu_bo_va_mgr *mgr, uint64_t start,
 
 drm_private void amdgpu_vamgr_deinit(struct amdgpu_bo_va_mgr *mgr);
 
-drm_private uint64_t
-amdgpu_vamgr_find_va(struct amdgpu_bo_va_mgr *mgr, uint64_t size,
-		     uint64_t alignment, uint64_t base_required);
-
-drm_private void
-amdgpu_vamgr_free_va(struct amdgpu_bo_va_mgr *mgr, uint64_t va, uint64_t size);
-
 drm_private int amdgpu_parse_asic_ids(struct amdgpu_asic_id **asic_ids);
 
 drm_private int amdgpu_query_gpu_info_init(amdgpu_device_handle dev);
diff --git a/amdgpu/amdgpu_vamgr.c b/amdgpu/amdgpu_vamgr.c
index 8516b594..ab425ef7 100644
--- a/amdgpu/amdgpu_vamgr.c
+++ b/amdgpu/amdgpu_vamgr.c
@@ -66,7 +66,7 @@ drm_private void amdgpu_vamgr_deinit(struct amdgpu_bo_va_mgr *mgr)
 	pthread_mutex_destroy(&mgr->bo_va_mutex);
 }
 
-drm_private uint64_t
+static drm_private uint64_t
 amdgpu_vamgr_find_va(struct amdgpu_bo_va_mgr *mgr, uint64_t size,
 		     uint64_t alignment, uint64_t base_required)
 {
@@ -155,7 +155,7 @@ amdgpu_vamgr_find_va(struct amdgpu_bo_va_mgr *mgr, uint64_t size,
 	return offset;
 }
 
-drm_private void
+static drm_private void
 amdgpu_vamgr_free_va(struct amdgpu_bo_va_mgr *mgr, uint64_t va, uint64_t size)
 {
 	struct amdgpu_bo_va_hole *hole;
-- 
2.11.0