[igt-dev] [PATCH i-g-t 07/93] lib/i915/gem_engine_topology: Expose the __query_engines helper (v2)
From: Jason Ekstrand <hidden>
Date: 2021-06-09 04:30:51
Subsystem:
library code, the rest · Maintainers:
Andrew Morton, Linus Torvalds
v2 (Jason Ekstrand): - Add docs Signed-off-by: Jason Ekstrand <redacted> Reviewed-by: Daniel Vetter <redacted> --- lib/i915/gem_engine_topology.c | 28 +++++++++++++++++++--------- lib/i915/gem_engine_topology.h | 4 ++++ 2 files changed, 23 insertions(+), 9 deletions(-)
diff --git a/lib/i915/gem_engine_topology.c b/lib/i915/gem_engine_topology.c
index 291fb028..eb7a4c26 100644
--- a/lib/i915/gem_engine_topology.c
+++ b/lib/i915/gem_engine_topology.c@@ -70,14 +70,17 @@ static int __gem_query(int fd, struct drm_i915_query *q) return err; } -static void gem_query(int fd, struct drm_i915_query *q) -{ - igt_assert_eq(__gem_query(fd, q), 0); -} - -static void query_engines(int fd, - struct drm_i915_query_engine_info *query_engines, - int length) +/** + * __gem_query_engines: + * @fd: open i915 drm file descriptor + * @query_engines: Returned engine query info + * @length: Size of query_engines, including room for the engines array + * + * Queries the set of engines available on this device. + */ +int __gem_query_engines(int fd, + struct drm_i915_query_engine_info *query_engines, + int length) { struct drm_i915_query_item item = { }; struct drm_i915_query query = { };
@@ -89,7 +92,14 @@ static void query_engines(int fd, item.data_ptr = to_user_pointer(query_engines); - gem_query(fd, &query); + return __gem_query(fd, &query); +} + +static void query_engines(int fd, + struct drm_i915_query_engine_info *query_engines, + int length) +{ + igt_assert_eq(__gem_query_engines(fd, query_engines, length), 0); } static void ctx_map_engines(int fd, struct intel_engine_data *ed,
diff --git a/lib/i915/gem_engine_topology.h b/lib/i915/gem_engine_topology.h
index ac37b19a..26a7af18 100644
--- a/lib/i915/gem_engine_topology.h
+++ b/lib/i915/gem_engine_topology.h@@ -29,6 +29,10 @@ #define GEM_MAX_ENGINES I915_EXEC_RING_MASK + 1 +int __gem_query_engines(int fd, + struct drm_i915_query_engine_info *query_engines, + int length); + /** * intel_engine_data: * @nengines: Number of engines
--
2.31.1
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