Contributors: 10
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Charlie Jenkins |
75 |
30.61% |
3 |
21.43% |
| Xiao Wang |
43 |
17.55% |
1 |
7.14% |
| JiSheng Zhang |
34 |
13.88% |
2 |
14.29% |
| Linus Torvalds |
28 |
11.43% |
1 |
7.14% |
| Conor Dooley |
26 |
10.61% |
1 |
7.14% |
| Anup Patel |
23 |
9.39% |
1 |
7.14% |
| Alexandre Ghiti |
7 |
2.86% |
1 |
7.14% |
| Evan Green |
4 |
1.63% |
2 |
14.29% |
| Palmer Dabbelt |
3 |
1.22% |
1 |
7.14% |
| Dao Lu |
2 |
0.82% |
1 |
7.14% |
| Total |
245 |
|
14 |
|
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright 2022-2024 Rivos, Inc
*/
#ifndef _ASM_CPUFEATURE_MACROS_H
#define _ASM_CPUFEATURE_MACROS_H
#include <asm/hwcap.h>
#include <asm/alternative-macros.h>
#define STANDARD_EXT 0
bool __riscv_isa_extension_available(const unsigned long *isa_bitmap, unsigned int bit);
#define riscv_isa_extension_available(isa_bitmap, ext) \
__riscv_isa_extension_available(isa_bitmap, RISCV_ISA_EXT_##ext)
static __always_inline bool __riscv_has_extension_likely(const unsigned long vendor,
const unsigned long ext)
{
asm goto(ALTERNATIVE("j %l[l_no]", "nop", %[vendor], %[ext], 1)
:
: [vendor] "i" (vendor), [ext] "i" (ext)
:
: l_no);
return true;
l_no:
return false;
}
static __always_inline bool __riscv_has_extension_unlikely(const unsigned long vendor,
const unsigned long ext)
{
asm goto(ALTERNATIVE("nop", "j %l[l_yes]", %[vendor], %[ext], 1)
:
: [vendor] "i" (vendor), [ext] "i" (ext)
:
: l_yes);
return false;
l_yes:
return true;
}
static __always_inline bool riscv_has_extension_unlikely(const unsigned long ext)
{
compiletime_assert(ext < RISCV_ISA_EXT_MAX, "ext must be < RISCV_ISA_EXT_MAX");
if (IS_ENABLED(CONFIG_RISCV_ALTERNATIVE))
return __riscv_has_extension_unlikely(STANDARD_EXT, ext);
return __riscv_isa_extension_available(NULL, ext);
}
static __always_inline bool riscv_has_extension_likely(const unsigned long ext)
{
compiletime_assert(ext < RISCV_ISA_EXT_MAX, "ext must be < RISCV_ISA_EXT_MAX");
if (IS_ENABLED(CONFIG_RISCV_ALTERNATIVE))
return __riscv_has_extension_likely(STANDARD_EXT, ext);
return __riscv_isa_extension_available(NULL, ext);
}
#endif /* _ASM_CPUFEATURE_MACROS_H */