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8e0b634b13
The "lppaca" is a structure registered with the hypervisor. This is unnecessary when running on non-virtualised platforms. One field from the lppaca (pmcregs_in_use) is also used by the host, so move the host part out into the paca (lppaca field is still updated in guest mode). Signed-off-by: Nicholas Piggin <npiggin@gmail.com> [mpe: Fix non-pseries build with some #ifdefs] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
/*
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* pmc.h
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* Copyright (C) 2004 David Gibson, IBM Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _POWERPC_PMC_H
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#define _POWERPC_PMC_H
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#ifdef __KERNEL__
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#include <asm/ptrace.h>
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typedef void (*perf_irq_t)(struct pt_regs *);
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extern perf_irq_t perf_irq;
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int reserve_pmc_hardware(perf_irq_t new_perf_irq);
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void release_pmc_hardware(void);
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void ppc_enable_pmcs(void);
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#ifdef CONFIG_PPC_BOOK3S_64
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#include <asm/lppaca.h>
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#include <asm/firmware.h>
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static inline void ppc_set_pmu_inuse(int inuse)
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{
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#if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_KVM_BOOK3S_HV_POSSIBLE)
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if (firmware_has_feature(FW_FEATURE_LPAR)) {
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#ifdef CONFIG_PPC_PSERIES
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get_lppaca()->pmcregs_in_use = inuse;
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#endif
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} else {
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#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
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get_paca()->pmcregs_in_use = inuse;
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#endif
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}
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#endif
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}
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extern void power4_enable_pmcs(void);
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#else /* CONFIG_PPC64 */
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static inline void ppc_set_pmu_inuse(int inuse) { }
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#endif
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#endif /* __KERNEL__ */
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#endif /* _POWERPC_PMC_H */
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