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62 lines
1.6 KiB
C
62 lines
1.6 KiB
C
/*
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* Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef BITMAP_ALLOCATOR_PRIV_H
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#define BITMAP_ALLOCATOR_PRIV_H
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#include <linux/rbtree.h>
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struct gk20a_allocator;
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struct gk20a_bitmap_allocator {
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struct gk20a_allocator *owner;
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u64 base; /* Base address of the space. */
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u64 length; /* Length of the space. */
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u64 blk_size; /* Size that corresponds to 1 bit. */
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u64 blk_shift; /* Bit shift to divide by blk_size. */
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u64 num_bits; /* Number of allocatable bits. */
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u64 bit_offs; /* Offset of bitmap. */
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unsigned long *bitmap; /* The actual bitmap! */
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struct rb_root allocs; /* Tree of outstanding allocations. */
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u64 flags;
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bool inited;
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/* Statistics */
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u64 nr_allocs;
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u64 nr_fixed_allocs;
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u64 bytes_alloced;
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u64 bytes_freed;
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};
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struct gk20a_bitmap_alloc {
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u64 base;
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u64 length;
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struct rb_node alloc_entry; /* RB tree of allocations. */
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};
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static inline struct gk20a_bitmap_allocator *bitmap_allocator(
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struct gk20a_allocator *a)
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{
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return (struct gk20a_bitmap_allocator *)(a)->priv;
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}
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#endif
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