diff options
Diffstat (limited to 'vendor/golang.org/x/sys/cpu/cpu_loong64.go')
| -rw-r--r-- | vendor/golang.org/x/sys/cpu/cpu_loong64.go | 50 |
1 files changed, 0 insertions, 50 deletions
diff --git a/vendor/golang.org/x/sys/cpu/cpu_loong64.go b/vendor/golang.org/x/sys/cpu/cpu_loong64.go deleted file mode 100644 index 45ecb29ae..000000000 --- a/vendor/golang.org/x/sys/cpu/cpu_loong64.go +++ /dev/null @@ -1,50 +0,0 @@ -// Copyright 2022 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//go:build loong64 - -package cpu - -const cacheLineSize = 64 - -// Bit fields for CPUCFG registers, Related reference documents: -// https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html#_cpucfg -const ( - // CPUCFG1 bits - cpucfg1_CRC32 = 1 << 25 - - // CPUCFG2 bits - cpucfg2_LAM_BH = 1 << 27 - cpucfg2_LAMCAS = 1 << 28 -) - -func initOptions() { - options = []option{ - {Name: "lsx", Feature: &Loong64.HasLSX}, - {Name: "lasx", Feature: &Loong64.HasLASX}, - {Name: "crc32", Feature: &Loong64.HasCRC32}, - {Name: "lam_bh", Feature: &Loong64.HasLAM_BH}, - {Name: "lamcas", Feature: &Loong64.HasLAMCAS}, - } - - // The CPUCFG data on Loong64 only reflects the hardware capabilities, - // not the kernel support status, so features such as LSX and LASX that - // require kernel support cannot be obtained from the CPUCFG data. - // - // These features only require hardware capability support and do not - // require kernel specific support, so they can be obtained directly - // through CPUCFG - cfg1 := get_cpucfg(1) - cfg2 := get_cpucfg(2) - - Loong64.HasCRC32 = cfgIsSet(cfg1, cpucfg1_CRC32) - Loong64.HasLAMCAS = cfgIsSet(cfg2, cpucfg2_LAMCAS) - Loong64.HasLAM_BH = cfgIsSet(cfg2, cpucfg2_LAM_BH) -} - -func get_cpucfg(reg uint32) uint32 - -func cfgIsSet(cfg uint32, val uint32) bool { - return cfg&val != 0 -} |