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authorTvrtko Ursulin <tvrtko.ursulin@intel.com>2019-11-22 10:41:15 +0000
committerJoonas Lahtinen <joonas.lahtinen@linux.intel.com>2019-11-25 15:08:24 +0200
commit03a2a606066cf8af7a090669848e4e84351ded06 (patch)
treeb41806ff7391985ee493a7bad0901fff5e8cfee6 /drivers/gpu
parent198dfe671fdfdb79755aa131c191a4cb10a2a8b7 (diff)
drm/i915/query: Align flavour of engine data lookup
Commit 750e76b4f9f6 ("drm/i915/gt: Move the [class][inst] lookup for engines onto the GT") changed the engine query to iterate over uabi engines but left the buffer size calculation look at the physical engine count. Difference has no practical consequence but it is nicer to align both queries. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Fixes: 750e76b4f9f6 ("drm/i915/gt: Move the [class][inst] lookup for engines onto the GT") Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20191122104115.29610-1-tvrtko.ursulin@linux.intel.com (cherry picked from commit 9acc99d8f278e3da398e927774431bd3e947ab2e) Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/i915/i915_query.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_query.c b/drivers/gpu/drm/i915/i915_query.c
index c27cfef9281c..ef25ce6e395e 100644
--- a/drivers/gpu/drm/i915/i915_query.c
+++ b/drivers/gpu/drm/i915/i915_query.c
@@ -103,15 +103,18 @@ query_engine_info(struct drm_i915_private *i915,
struct drm_i915_engine_info __user *info_ptr;
struct drm_i915_query_engine_info query;
struct drm_i915_engine_info info = { };
+ unsigned int num_uabi_engines = 0;
struct intel_engine_cs *engine;
int len, ret;
if (query_item->flags)
return -EINVAL;
+ for_each_uabi_engine(engine, i915)
+ num_uabi_engines++;
+
len = sizeof(struct drm_i915_query_engine_info) +
- RUNTIME_INFO(i915)->num_engines *
- sizeof(struct drm_i915_engine_info);
+ num_uabi_engines * sizeof(struct drm_i915_engine_info);
ret = copy_query_item(&query, sizeof(query), len, query_item);
if (ret != 0)