diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-04-14 09:40:01 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-04-14 11:02:52 -0300 |
| commit | 54a58ebc66cea54de056888e0afdda2983f00e0e (patch) | |
| tree | 29b2248e9de016753f2f4c2f9bcb12ea356696f9 /tools | |
| parent | 0719bdf46737c9060f67e35824af5bfff5084083 (diff) | |
| download | linux-54a58ebc66cea54de056888e0afdda2983f00e0e.tar.bz2 | |
tools headers UAPI: Sync drm/i915_drm.h with the kernel sources
To pick the change in:
88be76cdafc7 ("drm/i915: Allow userspace to specify ringsize on construction")
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@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/include/uapi/drm/i915_drm.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/tools/include/uapi/drm/i915_drm.h b/tools/include/uapi/drm/i915_drm.h index 829c0a48577f..2813e579b480 100644 --- a/tools/include/uapi/drm/i915_drm.h +++ b/tools/include/uapi/drm/i915_drm.h @@ -1619,6 +1619,27 @@ struct drm_i915_gem_context_param { * By default, new contexts allow persistence. */ #define I915_CONTEXT_PARAM_PERSISTENCE 0xb + +/* + * I915_CONTEXT_PARAM_RINGSIZE: + * + * Sets the size of the CS ringbuffer to use for logical ring contexts. This + * applies a limit of how many batches can be queued to HW before the caller + * is blocked due to lack of space for more commands. + * + * Only reliably possible to be set prior to first use, i.e. during + * construction. At any later point, the current execution must be flushed as + * the ring can only be changed while the context is idle. Note, the ringsize + * can be specified as a constructor property, see + * I915_CONTEXT_CREATE_EXT_SETPARAM, but can also be set later if required. + * + * Only applies to the current set of engine and lost when those engines + * are replaced by a new mapping (see I915_CONTEXT_PARAM_ENGINES). + * + * Must be between 4 - 512 KiB, in intervals of page size [4 KiB]. + * Default is 16 KiB. + */ +#define I915_CONTEXT_PARAM_RINGSIZE 0xc /* Must be kept compact -- no holes and well documented */ __u64 value; |