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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
| commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
| tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /arch/x86/um/asm/processor.h | |
| parent | Initial commit. (diff) | |
| download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip | |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/x86/um/asm/processor.h')
| -rw-r--r-- | arch/x86/um/asm/processor.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/x86/um/asm/processor.h b/arch/x86/um/asm/processor.h new file mode 100644 index 000000000..478710384 --- /dev/null +++ b/arch/x86/um/asm/processor.h @@ -0,0 +1,43 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __UM_PROCESSOR_H +#define __UM_PROCESSOR_H +#include <linux/time-internal.h> + +/* include faultinfo structure */ +#include <sysdep/faultinfo.h> + +#ifdef CONFIG_X86_32 +# include "processor_32.h" +#else +# include "processor_64.h" +#endif + +#define KSTK_EIP(tsk) KSTK_REG(tsk, HOST_IP) +#define KSTK_ESP(tsk) KSTK_REG(tsk, HOST_SP) +#define KSTK_EBP(tsk) KSTK_REG(tsk, HOST_BP) + +#define ARCH_IS_STACKGROW(address) \ + (address + 65536 + 32 * sizeof(unsigned long) >= UPT_SP(¤t->thread.regs.regs)) + +#include <asm/user.h> + +/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */ +static __always_inline void rep_nop(void) +{ + __asm__ __volatile__("rep;nop": : :"memory"); +} + +static __always_inline void cpu_relax(void) +{ + if (time_travel_mode == TT_MODE_INFCPU || + time_travel_mode == TT_MODE_EXTERNAL) + time_travel_ndelay(1); + else + rep_nop(); +} + +#define task_pt_regs(t) (&(t)->thread.regs) + +#include <asm/processor-generic.h> + +#endif |