From: Greg KH <gregkh@linuxfoundation.org>
To: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: mark.rutland@arm.com, linux-s390@vger.kernel.org,
peterz@infradead.org, will.deacon@arm.com,
heiko.carstens@de.ibm.com, adrian.hunter@intel.com,
acme@kernel.org, ast@kernel.org,
alexander.shishkin@linux.intel.com, mingo@redhat.com,
linux-arm-kernel@lists.infradead.org, hpa@zytor.com,
schwidefsky@de.ibm.com, namhyung@kernel.org, tglx@linutronix.de,
suzuki.poulosi@arm.com, jolsa@redhat.com,
linux-kernel@vger.kernel.org
Subject: Re: [RESEND PATCH v5 1/6] perf: Introduce ioctl to communicate driver configuration to kernel
Date: Wed, 19 Dec 2018 09:29:06 +0100 [thread overview]
Message-ID: <20181219082906.GA31670@kroah.com> (raw)
In-Reply-To: <1545067306-31687-2-git-send-email-mathieu.poirier@linaro.org>
On Mon, Dec 17, 2018 at 10:21:41AM -0700, Mathieu Poirier wrote:
> Adding a new IOCTL command to communicate PMU specific configuration to
> PMU kernel drivers. This can be anything a PMU might need for
> configuration that doesn't fit in the perf_event_attr structure, such
> as the CoreSight sink to use for a session.
>
> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
> ---
> include/uapi/linux/perf_event.h | 1 +
> tools/include/uapi/linux/perf_event.h | 1 +
> 2 files changed, 2 insertions(+)
>
> diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
> index 9de8780ac8d9..a39d8dc2e7a9 100644
> --- a/include/uapi/linux/perf_event.h
> +++ b/include/uapi/linux/perf_event.h
> @@ -462,6 +462,7 @@ struct perf_event_query_bpf {
> #define PERF_EVENT_IOC_PAUSE_OUTPUT _IOW('$', 9, __u32)
> #define PERF_EVENT_IOC_QUERY_BPF _IOWR('$', 10, struct perf_event_query_bpf *)
> #define PERF_EVENT_IOC_MODIFY_ATTRIBUTES _IOW('$', 11, struct perf_event_attr *)
> +#define PERF_EVENT_IOC_SET_DRV_CONFIG _IOW('$', 12, __u64 *)
>
> enum perf_event_ioc_flags {
> PERF_IOC_FLAG_GROUP = 1U << 0,
> diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h
> index 9de8780ac8d9..a39d8dc2e7a9 100644
> --- a/tools/include/uapi/linux/perf_event.h
> +++ b/tools/include/uapi/linux/perf_event.h
> @@ -462,6 +462,7 @@ struct perf_event_query_bpf {
> #define PERF_EVENT_IOC_PAUSE_OUTPUT _IOW('$', 9, __u32)
> #define PERF_EVENT_IOC_QUERY_BPF _IOWR('$', 10, struct perf_event_query_bpf *)
> #define PERF_EVENT_IOC_MODIFY_ATTRIBUTES _IOW('$', 11, struct perf_event_attr *)
> +#define PERF_EVENT_IOC_SET_DRV_CONFIG _IOW('$', 12, __u64 *)
A pointer to an unknown structure? That's just asking for abuse :(
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next prev parent reply other threads:[~2018-12-19 8:29 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-17 17:21 [RESEND PATCH v5 0/6] perf: Add ioctl for PMU driver configuration Mathieu Poirier
2018-12-17 17:21 ` [RESEND PATCH v5 1/6] perf: Introduce ioctl to communicate driver configuration to kernel Mathieu Poirier
2018-12-19 8:29 ` Greg KH [this message]
2018-12-17 17:21 ` [RESEND PATCH v5 2/6] perf/core: Use " Mathieu Poirier
2018-12-19 8:31 ` Greg KH
2018-12-24 0:52 ` [LKP] [perf/core] fae9e65dbd: BUG:kernel_reboot-without-warning_in_early-boot_stage, last_printk:early_console_in_setup_code kernel test robot
2018-12-17 17:21 ` [RESEND PATCH v5 3/6] perf/aux: Make perf_event accessible to setup_aux() Mathieu Poirier
2018-12-17 17:21 ` [RESEND PATCH v5 4/6] coresight: Use PMU driver configuration for sink selection Mathieu Poirier
2018-12-18 14:14 ` Suzuki K Poulose
2018-12-18 15:21 ` Alexander Shishkin
2018-12-18 18:20 ` Mathieu Poirier
2018-12-18 17:34 ` Mathieu Poirier
2018-12-19 9:40 ` Suzuki K Poulose
2019-01-07 18:18 ` Mathieu Poirier
2019-01-09 14:55 ` Suzuki K Poulose
2018-12-17 17:21 ` [RESEND PATCH v5 5/6] perf tools: Make perf_evsel accessible to PMU driver configuration code Mathieu Poirier
2018-12-17 17:21 ` [RESEND PATCH v5 6/6] perf tools: Use ioctl function to send sink information to kernel Mathieu Poirier
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