diff options
Diffstat (limited to 'tools/include')
| -rw-r--r-- | tools/include/asm-generic/bitops.h | 1 | ||||
| -rw-r--r-- | tools/include/asm-generic/bitops/__ffz.h | 12 | ||||
| -rw-r--r-- | tools/include/asm-generic/bitops/find.h | 28 | ||||
| -rw-r--r-- | tools/include/linux/bitops.h | 5 | ||||
| -rw-r--r-- | tools/include/linux/filter.h | 24 | ||||
| -rw-r--r-- | tools/include/uapi/asm-generic/mman-common.h | 5 |
6 files changed, 75 insertions, 0 deletions
diff --git a/tools/include/asm-generic/bitops.h b/tools/include/asm-generic/bitops.h index 653d1ba..0304600 100644 --- a/tools/include/asm-generic/bitops.h +++ b/tools/include/asm-generic/bitops.h @@ -13,6 +13,7 @@ */ #include <asm-generic/bitops/__ffs.h> +#include <asm-generic/bitops/__ffz.h> #include <asm-generic/bitops/fls.h> #include <asm-generic/bitops/__fls.h> #include <asm-generic/bitops/fls64.h> diff --git a/tools/include/asm-generic/bitops/__ffz.h b/tools/include/asm-generic/bitops/__ffz.h new file mode 100644 index 0000000..6744bd4 --- /dev/null +++ b/tools/include/asm-generic/bitops/__ffz.h @@ -0,0 +1,12 @@ +#ifndef _ASM_GENERIC_BITOPS_FFZ_H_ +#define _ASM_GENERIC_BITOPS_FFZ_H_ + +/* + * ffz - find first zero in word. + * @word: The word to search + * + * Undefined if no zero exists, so code should check against ~0UL first. + */ +#define ffz(x) __ffs(~(x)) + +#endif /* _ASM_GENERIC_BITOPS_FFZ_H_ */ diff --git a/tools/include/asm-generic/bitops/find.h b/tools/include/asm-generic/bitops/find.h index 31f5154..5538ecd 100644 --- a/tools/include/asm-generic/bitops/find.h +++ b/tools/include/asm-generic/bitops/find.h @@ -15,6 +15,21 @@ extern unsigned long find_next_bit(const unsigned long *addr, unsigned long size, unsigned long offset); #endif +#ifndef find_next_zero_bit + +/** + * find_next_zero_bit - find the next cleared bit in a memory region + * @addr: The address to base the search on + * @offset: The bitnumber to start searching at + * @size: The bitmap size in bits + * + * Returns the bit number of the next zero bit + * If no bits are zero, returns @size. + */ +unsigned long find_next_zero_bit(const unsigned long *addr, unsigned long size, + unsigned long offset); +#endif + #ifndef find_first_bit /** @@ -30,4 +45,17 @@ extern unsigned long find_first_bit(const unsigned long *addr, #endif /* find_first_bit */ +#ifndef find_first_zero_bit + +/** + * find_first_zero_bit - find the first cleared bit in a memory region + * @addr: The address to start the search at + * @size: The maximum number of bits to search + * + * Returns the bit number of the first cleared bit. + * If no bits are zero, returns @size. + */ +unsigned long find_first_zero_bit(const unsigned long *addr, unsigned long size); +#endif + #endif /*_TOOLS_LINUX_ASM_GENERIC_BITOPS_FIND_H_ */ diff --git a/tools/include/linux/bitops.h b/tools/include/linux/bitops.h index 49c929a..fc446343 100644 --- a/tools/include/linux/bitops.h +++ b/tools/include/linux/bitops.h @@ -39,6 +39,11 @@ extern unsigned long __sw_hweight64(__u64 w); (bit) < (size); \ (bit) = find_next_bit((addr), (size), (bit) + 1)) +#define for_each_clear_bit(bit, addr, size) \ + for ((bit) = find_first_zero_bit((addr), (size)); \ + (bit) < (size); \ + (bit) = find_next_zero_bit((addr), (size), (bit) + 1)) + /* same as for_each_set_bit() but use bit as value to start with */ #define for_each_set_bit_from(bit, addr, size) \ for ((bit) = find_next_bit((addr), (size), (bit)); \ diff --git a/tools/include/linux/filter.h b/tools/include/linux/filter.h index 3276625..122153b 100644 --- a/tools/include/linux/filter.h +++ b/tools/include/linux/filter.h @@ -218,6 +218,30 @@ .off = OFF, \ .imm = IMM }) +/* BPF_LD_IMM64 macro encodes single 'load 64-bit immediate' insn */ + +#define BPF_LD_IMM64(DST, IMM) \ + BPF_LD_IMM64_RAW(DST, 0, IMM) + +#define BPF_LD_IMM64_RAW(DST, SRC, IMM) \ + ((struct bpf_insn) { \ + .code = BPF_LD | BPF_DW | BPF_IMM, \ + .dst_reg = DST, \ + .src_reg = SRC, \ + .off = 0, \ + .imm = (__u32) (IMM) }), \ + ((struct bpf_insn) { \ + .code = 0, /* zero is reserved opcode */ \ + .dst_reg = 0, \ + .src_reg = 0, \ + .off = 0, \ + .imm = ((__u64) (IMM)) >> 32 }) + +/* pseudo BPF_LD_IMM64 insn used to refer to process-local map_fd */ + +#define BPF_LD_MAP_FD(DST, MAP_FD) \ + BPF_LD_IMM64_RAW(DST, BPF_PSEUDO_MAP_FD, MAP_FD) + /* Program exit */ #define BPF_EXIT_INSN() \ diff --git a/tools/include/uapi/asm-generic/mman-common.h b/tools/include/uapi/asm-generic/mman-common.h index 5827438..8c27db0 100644 --- a/tools/include/uapi/asm-generic/mman-common.h +++ b/tools/include/uapi/asm-generic/mman-common.h @@ -72,4 +72,9 @@ #define MAP_HUGE_SHIFT 26 #define MAP_HUGE_MASK 0x3f +#define PKEY_DISABLE_ACCESS 0x1 +#define PKEY_DISABLE_WRITE 0x2 +#define PKEY_ACCESS_MASK (PKEY_DISABLE_ACCESS |\ + PKEY_DISABLE_WRITE) + #endif /* __ASM_GENERIC_MMAN_COMMON_H */ |
