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path: root/drivers/gpu/drm/amd/amdkfd/kfd_pasid.c
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Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_pasid.c')
-rw-r--r--drivers/gpu/drm/amd/amdkfd/kfd_pasid.c84
1 files changed, 0 insertions, 84 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_pasid.c b/drivers/gpu/drm/amd/amdkfd/kfd_pasid.c
deleted file mode 100644
index 33b08ff00b50..000000000000
--- a/drivers/gpu/drm/amd/amdkfd/kfd_pasid.c
+++ /dev/null
@@ -1,84 +0,0 @@
-/*
- * Copyright 2014 Advanced Micro Devices, Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#include <linux/types.h>
-#include "kfd_priv.h"
-#include "amdgpu_ids.h"
-
-static unsigned int pasid_bits = 16;
-static const struct kfd2kgd_calls *kfd2kgd;
-
-bool kfd_set_pasid_limit(unsigned int new_limit)
-{
- if (new_limit < 2)
- return false;
-
- if (new_limit < (1U << pasid_bits)) {
- if (kfd2kgd)
- /* We've already allocated user PASIDs, too late to
- * change the limit
- */
- return false;
-
- while (new_limit < (1U << pasid_bits))
- pasid_bits--;
- }
-
- return true;
-}
-
-unsigned int kfd_get_pasid_limit(void)
-{
- return 1U << pasid_bits;
-}
-
-unsigned int kfd_pasid_alloc(void)
-{
- int r;
-
- /* Find the first best KFD device for calling KGD */
- if (!kfd2kgd) {
- struct kfd_dev *dev = NULL;
- unsigned int i = 0;
-
- while ((kfd_topology_enum_kfd_devices(i, &dev)) == 0) {
- if (dev && dev->kfd2kgd) {
- kfd2kgd = dev->kfd2kgd;
- break;
- }
- i++;
- }
-
- if (!kfd2kgd)
- return false;
- }
-
- r = amdgpu_pasid_alloc(pasid_bits);
-
- return r > 0 ? r : 0;
-}
-
-void kfd_pasid_free(unsigned int pasid)
-{
- if (kfd2kgd)
- amdgpu_pasid_free(pasid);
-}