Create new header file "nest-pmu.h" to add the data structures and macros needed for the nest pmu support.
Cc: Michael Ellerman <m...@ellerman.id.au> Cc: Benjamin Herrenschmidt <b...@kernel.crashing.org> Cc: Paul Mackerras <pau...@samba.org> Cc: Anton Blanchard <an...@samba.org> Cc: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> Cc: Anshuman Khandual <khand...@linux.vnet.ibm.com> Cc: Stephane Eranian <eran...@google.com> Signed-off-by: Madhavan Srinivasan <ma...@linux.vnet.ibm.com> --- arch/powerpc/perf/nest-pmu.h | 53 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 arch/powerpc/perf/nest-pmu.h diff --git a/arch/powerpc/perf/nest-pmu.h b/arch/powerpc/perf/nest-pmu.h new file mode 100644 index 0000000..ecb5d26 --- /dev/null +++ b/arch/powerpc/perf/nest-pmu.h @@ -0,0 +1,53 @@ +/* + * Nest Performance Monitor counter support for POWER8 processors. + * + * Copyright (C) 2015 Madhavan Srinivasan, IBM Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#include <linux/perf_event.h> +#include <linux/slab.h> +#include <linux/of.h> +#include <linux/io.h> +#include <asm/opal.h> + +#define P8_NEST_MAX_CHIPS 32 +#define P8_NEST_MAX_PMUS 32 +#define P8_NEST_MAX_PMU_NAME_LEN 256 +#define P8_NEST_MAX_EVENTS_SUPPORTED 256 +#define P8_NEST_ENGINE_START 1 +#define P8_NEST_ENGINE_STOP 0 + +/* + * Structure to hold per chip specific memory address + * information for nest pmus. Nest Counter data are exported + * in per-chip reserved memory region by the PORE Engine. + */ +struct perchip_nest_info { + uint32_t chip_id; + uint64_t pbase; + uint64_t vbase; + uint32_t size; +}; + +/* + * Place holder for nest pmu events and values. + */ +struct nest_ima_events { + const char *ev_name; + const char *ev_value; +}; + +/* + * Device tree parser code detects nest pmu support and + * registers new nest pmus. This structure will + * hold the pmu functions and attrs for each nest pmu and + * will be referenced at the time of pmu registration. + */ +struct nest_pmu { + struct pmu pmu; + const struct attribute_group *attr_groups[4]; +}; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/