From 0102c8c7fdfc4bd700971daff2b94470f4eafae4 Mon Sep 17 00:00:00 2001 From: Dapeng Mi Date: Thu, 17 Sep 2026 09:52:33 +0800 Subject: perf/x86/intel: Rename DMR offcore_rsp attribute to offmodule_rsp DMR introduces Offmodule Response events in place of the legacy Offcore Response events, but it still exposes the inherited offcore_rsp PMU attribute for programming the corresponding MSR data. Rename the DMR PMU attribute to offmodule_rsp so the sysfs interface matches the underlying event name and avoids user & tooling confusion. Signed-off-by: Dapeng Mi Signed-off-by: Peter Zijlstra (Intel) Signed-off-by: Ingo Molnar Link: https://patch.msgid.link/20260917015234.981153-12-dapeng1.mi@linux.intel.com --- arch/m68k/lib/memcpy.c | 89 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 89 insertions(+) create mode 100644 arch/m68k/lib/memcpy.c (limited to 'arch/m68k/lib/memcpy.c') diff --git a/arch/m68k/lib/memcpy.c b/arch/m68k/lib/memcpy.c new file mode 100644 index 000000000..c1e2dfb20 --- /dev/null +++ b/arch/m68k/lib/memcpy.c @@ -0,0 +1,89 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +#include +#include + +void *memcpy(void *to, const void *from, size_t n) +{ + void *xto = to; + size_t temp; + + if (!n) + return xto; + if ((long)to & 1) { + char *cto = to; + const char *cfrom = from; + *cto++ = *cfrom++; + to = cto; + from = cfrom; + n--; + } +#if defined(CONFIG_M68000) + if ((long)from & 1) { + char *cto = to; + const char *cfrom = from; + for (; n; n--) + *cto++ = *cfrom++; + return xto; + } +#endif + if (n > 2 && (long)to & 2) { + short *sto = to; + const short *sfrom = from; + *sto++ = *sfrom++; + to = sto; + from = sfrom; + n -= 2; + } + temp = n >> 2; + if (temp) { + long *lto = to; + const long *lfrom = from; +#if defined(CONFIG_M68000) || defined(CONFIG_COLDFIRE) + for (; temp; temp--) + *lto++ = *lfrom++; +#else + size_t temp1; + asm volatile ( + " movel %2,%3\n" + " andw #7,%3\n" + " lsrl #3,%2\n" + " negw %3\n" + " jmp %%pc@(1f,%3:w:2)\n" + "4: movel %0@+,%1@+\n" + " movel %0@+,%1@+\n" + " movel %0@+,%1@+\n" + " movel %0@+,%1@+\n" + " movel %0@+,%1@+\n" + " movel %0@+,%1@+\n" + " movel %0@+,%1@+\n" + " movel %0@+,%1@+\n" + "1: dbra %2,4b\n" + " clrw %2\n" + " subql #1,%2\n" + " jpl 4b" + : "=a" (lfrom), "=a" (lto), "=d" (temp), "=&d" (temp1) + : "0" (lfrom), "1" (lto), "2" (temp)); +#endif + to = lto; + from = lfrom; + } + if (n & 2) { + short *sto = to; + const short *sfrom = from; + *sto++ = *sfrom++; + to = sto; + from = sfrom; + } + if (n & 1) { + char *cto = to; + const char *cfrom = from; + *cto = *cfrom; + } + return xto; +} +EXPORT_SYMBOL(memcpy); -- cgit v1.3.1