diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_pasid.c')
-rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_pasid.c | 70 |
1 files changed, 0 insertions, 70 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 e3b250918f39..000000000000 --- a/drivers/gpu/drm/amd/amdkfd/kfd_pasid.c +++ /dev/null @@ -1,70 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 OR MIT -/* - * Copyright 2014-2022 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 bool pasids_allocated; /* = false */ - -bool kfd_set_pasid_limit(unsigned int new_limit) -{ - if (new_limit < 2) - return false; - - if (new_limit < (1U << pasid_bits)) { - if (pasids_allocated) - /* 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; -} - -u32 kfd_pasid_alloc(void) -{ - int r = amdgpu_pasid_alloc(pasid_bits); - - if (r > 0) { - pasids_allocated = true; - return r; - } - - return 0; -} - -void kfd_pasid_free(u32 pasid) -{ - amdgpu_pasid_free(pasid); -} |