| Server IP : 13.213.54.232 / Your IP : 216.73.216.72 Web Server : Apache/2.4.52 (Ubuntu) System : Linux ip-172-31-17-110 6.8.0-1029-aws #31~22.04.1-Ubuntu SMP Thu Apr 24 21:16:18 UTC 2025 x86_64 User : www-data ( 33) PHP Version : 7.1.33-67+ubuntu22.04.1+deb.sury.org+1 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals, MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON Directory : /lib/modules/6.8.0-1031-aws/build/arch/parisc/include/asm/ |
Upload File : |
/* SPDX-License-Identifier: GPL-2.0 */
/*
* include/asm-parisc/prefetch.h
*
* PA 2.0 defines data prefetch instructions on page 6-11 of the Kane book.
* In addition, many implementations do hardware prefetching of both
* instructions and data.
*
* PA7300LC (page 14-4 of the ERS) also implements prefetching by a load
* to gr0 but not in a way that Linux can use. If the load would cause an
* interruption (eg due to prefetching 0), it is suppressed on PA2.0
* processors, but not on 7300LC.
*
*/
#ifndef __ASM_PARISC_PREFETCH_H
#define __ASM_PARISC_PREFETCH_H
#ifndef __ASSEMBLY__
#ifdef CONFIG_PREFETCH
#define ARCH_HAS_PREFETCH
static inline void prefetch(const void *addr)
{
__asm__(
#ifndef CONFIG_PA20
/* Need to avoid prefetch of NULL on PA7300LC */
" extrw,u,= %0,31,32,%%r0\n"
#endif
" ldw 0(%0), %%r0" : : "r" (addr));
}
/* LDD is a PA2.0 addition. */
#ifdef CONFIG_PA20
#define ARCH_HAS_PREFETCHW
static inline void prefetchw(const void *addr)
{
__asm__("ldd 0(%0), %%r0" : : "r" (addr));
}
#endif /* CONFIG_PA20 */
#endif /* CONFIG_PREFETCH */
#endif /* __ASSEMBLY__ */
#endif /* __ASM_PARISC_PROCESSOR_H */