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Date: Fri, 6 Dec 2019 11:02:40 +0200
From: Lionel Landwerlin <lionel.g.landwerlin@...el.com>
To: linux-kernel@...r.kernel.org, linux-tip-commits@...r.kernel.org
Cc: Adrian Hunter <adrian.hunter@...el.com>,
Chris Wilson <chris@...is-wilson.co.uk>,
Daniele Ceraolo Spurio <daniele.ceraolospurio@...el.com>,
Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Arnaldo Carvalho de Melo <acme@...hat.com>,
x86 <x86@...nel.org>
Subject: Re: [tip: perf/urgent] tools headers UAPI: Sync drm/i915_drm.h with
the kernel sources
On 06/12/2019 10:03, tip-bot2 for Arnaldo Carvalho de Melo wrote:
> The following commit has been merged into the perf/urgent branch of tip:
>
> Commit-ID: 0b3fca6ad3283866e9d2376554b3e4fbf23bfd5d
> Gitweb: https://git.kernel.org/tip/0b3fca6ad3283866e9d2376554b3e4fbf23bfd5d
> Author: Arnaldo Carvalho de Melo <acme@...hat.com>
> AuthorDate: Wed, 04 Dec 2019 12:49:43 -03:00
> Committer: Arnaldo Carvalho de Melo <acme@...hat.com>
> CommitterDate: Wed, 04 Dec 2019 16:22:28 -03:00
>
> tools headers UAPI: Sync drm/i915_drm.h with the kernel sources
>
> To pick the change in:
>
> a0e047156cde ("drm/i915/gem: Make context persistence optional")
> 9cd20ef7803c ("drm/i915/perf: allow holding preemption on filtered ctx")
> 7831e9a965ea ("drm/i915/perf: Allow dynamic reconfiguration of the OA stream")
> 4f6ccc74a85c ("drm/i915: add support for perf configuration queries")
> b8d49f28aa03 ("drm/i915/perf: introduce a versioning of the i915-perf uapi")
> 601734f7aabd ("drm/i915/tgl: s/ss/eu fuse reading support")
>
> That don't result in any changes in tooling, just silences this perf
> build warning:
>
> Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h'
> diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h
>
> Cc: Adrian Hunter <adrian.hunter@...el.com>
> Cc: Chris Wilson <chris@...is-wilson.co.uk>
> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@...el.com>
> Cc: Jiri Olsa <jolsa@...nel.org>
> Cc: Lionel Landwerlin <lionel.g.landwerlin@...el.com>
> Cc: Namhyung Kim <namhyung@...nel.org>
> Link: https://lkml.kernel.org/n/tip-qwzjrgwj55y3g6rjdf9spkpr@git.kernel.org
> Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
Acked-by: Lionel Landwerlin <lionel.g.landwerlin@...el.com>
> ---
> tools/include/uapi/drm/i915_drm.h | 128 ++++++++++++++++++++++++++++-
> 1 file changed, 125 insertions(+), 3 deletions(-)
>
> diff --git a/tools/include/uapi/drm/i915_drm.h b/tools/include/uapi/drm/i915_drm.h
> index 469dc51..5400d7e 100644
> --- a/tools/include/uapi/drm/i915_drm.h
> +++ b/tools/include/uapi/drm/i915_drm.h
> @@ -611,6 +611,13 @@ typedef struct drm_i915_irq_wait {
> * See I915_EXEC_FENCE_OUT and I915_EXEC_FENCE_SUBMIT.
> */
> #define I915_PARAM_HAS_EXEC_SUBMIT_FENCE 53
> +
> +/*
> + * Revision of the i915-perf uAPI. The value returned helps determine what
> + * i915-perf features are available. See drm_i915_perf_property_id.
> + */
> +#define I915_PARAM_PERF_REVISION 54
> +
> /* Must be kept compact -- no holes and well documented */
>
> typedef struct drm_i915_getparam {
> @@ -1565,6 +1572,21 @@ struct drm_i915_gem_context_param {
> * i915_context_engines_bond (I915_CONTEXT_ENGINES_EXT_BOND)
> */
> #define I915_CONTEXT_PARAM_ENGINES 0xa
> +
> +/*
> + * I915_CONTEXT_PARAM_PERSISTENCE:
> + *
> + * Allow the context and active rendering to survive the process until
> + * completion. Persistence allows fire-and-forget clients to queue up a
> + * bunch of work, hand the output over to a display server and then quit.
> + * If the context is marked as not persistent, upon closing (either via
> + * an explicit DRM_I915_GEM_CONTEXT_DESTROY or implicitly from file closure
> + * or process termination), the context and any outstanding requests will be
> + * cancelled (and exported fences for cancelled requests marked as -EIO).
> + *
> + * By default, new contexts allow persistence.
> + */
> +#define I915_CONTEXT_PARAM_PERSISTENCE 0xb
> /* Must be kept compact -- no holes and well documented */
>
> __u64 value;
> @@ -1844,23 +1866,31 @@ enum drm_i915_perf_property_id {
> * Open the stream for a specific context handle (as used with
> * execbuffer2). A stream opened for a specific context this way
> * won't typically require root privileges.
> + *
> + * This property is available in perf revision 1.
> */
> DRM_I915_PERF_PROP_CTX_HANDLE = 1,
>
> /**
> * A value of 1 requests the inclusion of raw OA unit reports as
> * part of stream samples.
> + *
> + * This property is available in perf revision 1.
> */
> DRM_I915_PERF_PROP_SAMPLE_OA,
>
> /**
> * The value specifies which set of OA unit metrics should be
> * be configured, defining the contents of any OA unit reports.
> + *
> + * This property is available in perf revision 1.
> */
> DRM_I915_PERF_PROP_OA_METRICS_SET,
>
> /**
> * The value specifies the size and layout of OA unit reports.
> + *
> + * This property is available in perf revision 1.
> */
> DRM_I915_PERF_PROP_OA_FORMAT,
>
> @@ -1870,9 +1900,22 @@ enum drm_i915_perf_property_id {
> * from this exponent as follows:
> *
> * 80ns * 2^(period_exponent + 1)
> + *
> + * This property is available in perf revision 1.
> */
> DRM_I915_PERF_PROP_OA_EXPONENT,
>
> + /**
> + * Specifying this property is only valid when specify a context to
> + * filter with DRM_I915_PERF_PROP_CTX_HANDLE. Specifying this property
> + * will hold preemption of the particular context we want to gather
> + * performance data about. The execbuf2 submissions must include a
> + * drm_i915_gem_execbuffer_ext_perf parameter for this to apply.
> + *
> + * This property is available in perf revision 3.
> + */
> + DRM_I915_PERF_PROP_HOLD_PREEMPTION,
> +
> DRM_I915_PERF_PROP_MAX /* non-ABI */
> };
>
> @@ -1901,6 +1944,8 @@ struct drm_i915_perf_open_param {
> * to close and re-open a stream with the same configuration.
> *
> * It's undefined whether any pending data for the stream will be lost.
> + *
> + * This ioctl is available in perf revision 1.
> */
> #define I915_PERF_IOCTL_ENABLE _IO('i', 0x0)
>
> @@ -1908,10 +1953,25 @@ struct drm_i915_perf_open_param {
> * Disable data capture for a stream.
> *
> * It is an error to try and read a stream that is disabled.
> + *
> + * This ioctl is available in perf revision 1.
> */
> #define I915_PERF_IOCTL_DISABLE _IO('i', 0x1)
>
> /**
> + * Change metrics_set captured by a stream.
> + *
> + * If the stream is bound to a specific context, the configuration change
> + * will performed inline with that context such that it takes effect before
> + * the next execbuf submission.
> + *
> + * Returns the previously bound metrics set id, or a negative error code.
> + *
> + * This ioctl is available in perf revision 2.
> + */
> +#define I915_PERF_IOCTL_CONFIG _IO('i', 0x2)
> +
> +/**
> * Common to all i915 perf records
> */
> struct drm_i915_perf_record_header {
> @@ -1984,6 +2044,7 @@ struct drm_i915_query_item {
> __u64 query_id;
> #define DRM_I915_QUERY_TOPOLOGY_INFO 1
> #define DRM_I915_QUERY_ENGINE_INFO 2
> +#define DRM_I915_QUERY_PERF_CONFIG 3
> /* Must be kept compact -- no holes and well documented */
>
> /*
> @@ -1995,9 +2056,18 @@ struct drm_i915_query_item {
> __s32 length;
>
> /*
> - * Unused for now. Must be cleared to zero.
> + * When query_id == DRM_I915_QUERY_TOPOLOGY_INFO, must be 0.
> + *
> + * When query_id == DRM_I915_QUERY_PERF_CONFIG, must be one of the
> + * following :
> + * - DRM_I915_QUERY_PERF_CONFIG_LIST
> + * - DRM_I915_QUERY_PERF_CONFIG_DATA_FOR_UUID
> + * - DRM_I915_QUERY_PERF_CONFIG_FOR_UUID
> */
> __u32 flags;
> +#define DRM_I915_QUERY_PERF_CONFIG_LIST 1
> +#define DRM_I915_QUERY_PERF_CONFIG_DATA_FOR_UUID 2
> +#define DRM_I915_QUERY_PERF_CONFIG_DATA_FOR_ID 3
>
> /*
> * Data will be written at the location pointed by data_ptr when the
> @@ -2033,8 +2103,10 @@ struct drm_i915_query {
> * (data[X / 8] >> (X % 8)) & 1
> *
> * - the subslice mask for each slice with one bit per subslice telling
> - * whether a subslice is available. The availability of subslice Y in slice
> - * X can be queried with the following formula :
> + * whether a subslice is available. Gen12 has dual-subslices, which are
> + * similar to two gen11 subslices. For gen12, this array represents dual-
> + * subslices. The availability of subslice Y in slice X can be queried
> + * with the following formula :
> *
> * (data[subslice_offset +
> * X * subslice_stride +
> @@ -2123,6 +2195,56 @@ struct drm_i915_query_engine_info {
> struct drm_i915_engine_info engines[];
> };
>
> +/*
> + * Data written by the kernel with query DRM_I915_QUERY_PERF_CONFIG.
> + */
> +struct drm_i915_query_perf_config {
> + union {
> + /*
> + * When query_item.flags == DRM_I915_QUERY_PERF_CONFIG_LIST, i915 sets
> + * this fields to the number of configurations available.
> + */
> + __u64 n_configs;
> +
> + /*
> + * When query_id == DRM_I915_QUERY_PERF_CONFIG_DATA_FOR_ID,
> + * i915 will use the value in this field as configuration
> + * identifier to decide what data to write into config_ptr.
> + */
> + __u64 config;
> +
> + /*
> + * When query_id == DRM_I915_QUERY_PERF_CONFIG_DATA_FOR_UUID,
> + * i915 will use the value in this field as configuration
> + * identifier to decide what data to write into config_ptr.
> + *
> + * String formatted like "%08x-%04x-%04x-%04x-%012x"
> + */
> + char uuid[36];
> + };
> +
> + /*
> + * Unused for now. Must be cleared to zero.
> + */
> + __u32 flags;
> +
> + /*
> + * When query_item.flags == DRM_I915_QUERY_PERF_CONFIG_LIST, i915 will
> + * write an array of __u64 of configuration identifiers.
> + *
> + * When query_item.flags == DRM_I915_QUERY_PERF_CONFIG_DATA, i915 will
> + * write a struct drm_i915_perf_oa_config. If the following fields of
> + * drm_i915_perf_oa_config are set not set to 0, i915 will write into
> + * the associated pointers the values of submitted when the
> + * configuration was created :
> + *
> + * - n_mux_regs
> + * - n_boolean_regs
> + * - n_flex_regs
> + */
> + __u8 data[];
> +};
> +
> #if defined(__cplusplus)
> }
> #endif
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