80947e7c99
If CONFIG_PPC_EMULATED_STATS is enabled, make available counters for the various classes of emulated instructions under /sys/kernel/debug/powerpc/emulated_instructions/ (assumed debugfs is mounted on /sys/kernel/debug). Optionally (controlled by /sys/kernel/debug/powerpc/emulated_instructions/do_warn), rate-limited warnings can be printed to the console when instructions are emulated. Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
74 lines
2.0 KiB
C
74 lines
2.0 KiB
C
/*
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* Copyright 2007 Sony 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; version 2 of the License.
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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.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _ASM_POWERPC_EMULATED_OPS_H
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#define _ASM_POWERPC_EMULATED_OPS_H
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#include <asm/atomic.h>
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#ifdef CONFIG_PPC_EMULATED_STATS
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struct ppc_emulated_entry {
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const char *name;
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atomic_t val;
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};
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extern struct ppc_emulated {
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#ifdef CONFIG_ALTIVEC
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struct ppc_emulated_entry altivec;
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#endif
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struct ppc_emulated_entry dcba;
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struct ppc_emulated_entry dcbz;
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struct ppc_emulated_entry fp_pair;
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struct ppc_emulated_entry isel;
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struct ppc_emulated_entry mcrxr;
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struct ppc_emulated_entry mfpvr;
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struct ppc_emulated_entry multiple;
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struct ppc_emulated_entry popcntb;
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struct ppc_emulated_entry spe;
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struct ppc_emulated_entry string;
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struct ppc_emulated_entry unaligned;
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#ifdef CONFIG_MATH_EMULATION
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struct ppc_emulated_entry math;
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#elif defined(CONFIG_8XX_MINIMAL_FPEMU)
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struct ppc_emulated_entry 8xx;
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#endif
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#ifdef CONFIG_VSX
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struct ppc_emulated_entry vsx;
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#endif
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} ppc_emulated;
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extern u32 ppc_warn_emulated;
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extern void ppc_warn_emulated_print(const char *type);
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#define PPC_WARN_EMULATED(type) \
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do { \
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atomic_inc(&ppc_emulated.type.val); \
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if (ppc_warn_emulated) \
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ppc_warn_emulated_print(ppc_emulated.type.name); \
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} while (0)
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#else /* !CONFIG_PPC_EMULATED_STATS */
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#define PPC_WARN_EMULATED(type) do { } while (0)
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#endif /* !CONFIG_PPC_EMULATED_STATS */
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#endif /* _ASM_POWERPC_EMULATED_OPS_H */
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