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authorJoshua Bakita <bakitajoshua@gmail.com>2024-09-25 16:09:09 -0400
committerJoshua Bakita <bakitajoshua@gmail.com>2024-09-25 16:09:09 -0400
commitf347fde22f1297e4f022600d201780d5ead78114 (patch)
tree76be305d6187003a1e0486ff6e91efb1062ae118 /include/nvgpu/posix/bitops.h
parent8340d234d78a7d0f46c11a584de538148b78b7cb (diff)
Delete no-longer-needed nvgpu headersHEADmasterjbakita-wip
The dependency on these was removed in commit 8340d234.
Diffstat (limited to 'include/nvgpu/posix/bitops.h')
-rw-r--r--include/nvgpu/posix/bitops.h95
1 files changed, 0 insertions, 95 deletions
diff --git a/include/nvgpu/posix/bitops.h b/include/nvgpu/posix/bitops.h
deleted file mode 100644
index e8c663b..0000000
--- a/include/nvgpu/posix/bitops.h
+++ /dev/null
@@ -1,95 +0,0 @@
1/*
2 * Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
20 * DEALINGS IN THE SOFTWARE.
21 */
22
23#ifndef __NVGPU_POSIX_BITOPS_H__
24#define __NVGPU_POSIX_BITOPS_H__
25
26#include <nvgpu/types.h>
27
28/*
29 * Assume an 8 bit byte, of course.
30 */
31#define BITS_PER_BYTE 8UL
32#define BITS_PER_LONG (__SIZEOF_LONG__ * BITS_PER_BYTE)
33#define BITS_TO_LONGS(bits) \
34 (bits + (BITS_PER_LONG - 1) / BITS_PER_LONG)
35
36/*
37 * Deprecated; use the explicit BITxx() macros instead.
38 */
39#define BIT(i) BIT64(i)
40
41#define GENMASK(h, l) \
42 (((~0UL) - (1UL << (l)) + 1) & (~0UL >> (BITS_PER_LONG - 1 - (h))))
43
44#define DECLARE_BITMAP(bmap, bits) \
45 unsigned long bmap[BITS_TO_LONGS(bits)]
46
47#define for_each_set_bit(bit, addr, size) \
48 for ((bit) = find_first_bit((addr), (size)); \
49 (bit) < (size); \
50 (bit) = find_next_bit((addr), (size), (bit) + 1))
51
52#define ffs(word) __ffs(word)
53#define ffz(word) __ffs(~(word))
54#define fls(word) __fls(word)
55
56/*
57 * Clashes with symbols in libc it seems.
58 */
59#define __ffs(word) __nvgpu_posix_ffs(word)
60#define __fls(word) __nvgpu_posix_fls(word)
61
62unsigned long __nvgpu_posix_ffs(unsigned long word);
63unsigned long __nvgpu_posix_fls(unsigned long word);
64
65unsigned long find_first_bit(const unsigned long *addr, unsigned long size);
66unsigned long find_next_bit(const unsigned long *addr, unsigned long size,
67 unsigned long offset);
68unsigned long find_first_zero_bit(const unsigned long *addr,
69 unsigned long size);
70
71bool test_bit(int nr, const volatile unsigned long *addr);
72bool test_and_set_bit(int nr, volatile unsigned long *addr);
73bool test_and_clear_bit(int nr, volatile unsigned long *addr);
74
75/*
76 * These two are atomic.
77 */
78void set_bit(int nr, volatile unsigned long *addr);
79void clear_bit(int nr, volatile unsigned long *addr);
80
81void bitmap_set(unsigned long *map, unsigned int start, int len);
82void bitmap_clear(unsigned long *map, unsigned int start, int len);
83unsigned long bitmap_find_next_zero_area_off(unsigned long *map,
84 unsigned long size,
85 unsigned long start,
86 unsigned int nr,
87 unsigned long align_mask,
88 unsigned long align_offset);
89unsigned long bitmap_find_next_zero_area(unsigned long *map,
90 unsigned long size,
91 unsigned long start,
92 unsigned int nr,
93 unsigned long align_mask);
94
95#endif