Revision c1c10cc77883932abdb7b103687ecbb01e80bef9 authored by Pu Wen on 31 August 2019, 02:20:31 UTC, committed by Len Brown on 31 August 2019, 18:48:39 UTC
Commit 9392bd98bba760be96ee ("tools/power turbostat: Add support for AMD
Fam 17h (Zen) RAPL") and the commit 3316f99a9f1b68c578c5 ("tools/power
turbostat: Also read package power on AMD F17h (Zen)") add AMD Fam 17h
RAPL support.

Hygon Family 18h(Dhyana) support RAPL in bit 14 of CPUID 0x80000007 EDX,
and has MSRs RAPL_PWR_UNIT/CORE_ENERGY_STAT/PKG_ENERGY_STAT. So add Hygon
Dhyana Family 18h support for RAPL.

Already tested on Hygon multi-node systems and it shows correct per-core
energy usage and the total package power.

Signed-off-by: Pu Wen <puwen@hygon.cn>
Reviewed-by: Calvin Walton <calvin.walton@kepstin.ca>
Signed-off-by: Len Brown <len.brown@intel.com>
1 parent 9cfa8e0
Raw File
ashldi3.c
// SPDX-License-Identifier: GPL-2.0-or-later
/*
 */

#include <linux/export.h>

#include <linux/libgcc.h>

long long notrace __ashldi3(long long u, word_type b)
{
	DWunion uu, w;
	word_type bm;

	if (b == 0)
		return u;

	uu.ll = u;
	bm = 32 - b;

	if (bm <= 0) {
		w.s.low = 0;
		w.s.high = (unsigned int) uu.s.low << -bm;
	} else {
		const unsigned int carries = (unsigned int) uu.s.low >> bm;

		w.s.low = (unsigned int) uu.s.low << b;
		w.s.high = ((unsigned int) uu.s.high << b) | carries;
	}

	return w.ll;
}
EXPORT_SYMBOL(__ashldi3);
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