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drm/i915/gt: Move the [class][inst] lookup for engines onto the GT

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To maintain a fast lookup from a GT centric irq handler, we want the
engine lookup tables on the intel_gt. To avoid having multiple copies of
the same multi-dimension lookup table, move the generic user engine
lookup into an rbtree (for fast and flexible indexing).

v2: Split uabi_instance cf uabi_class
v3: Set uabi_class/uabi_instance after collating all engines to provide a
stable uabi across parallel unordered construction.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> #v2
Link: https://patchwork.freedesktop.org/patch/msgid/20190806124300.24945-2-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson
2019-08-06 13:43:00 +01:00
parent c29579d2fa
commit 750e76b4f9
21 changed files with 328 additions and 161 deletions
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22
drivers/gpu/drm/i915/i915_gem.c
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@@ -46,6 +46,7 @@
#include "gem/i915_gem_ioctls.h"
#include "gem/i915_gem_pm.h"
#include "gem/i915_gemfs.h"
#include "gt/intel_engine_user.h"
#include "gt/intel_gt.h"
#include "gt/intel_gt_pm.h"
#include "gt/intel_mocs.h"
@@ -1359,24 +1360,6 @@ err_rq:
i915_gem_object_unpin_map(engine->default_state);
}
if (IS_ENABLED(CONFIG_DRM_I915_DEBUG_GEM)) {
unsigned int found = intel_engines_has_context_isolation(i915);
/*
* Make sure that classes with multiple engine instances all
* share the same basic configuration.
*/
for_each_engine(engine, i915, id) {
unsigned int bit = BIT(engine->uabi_class);
unsigned int expected = engine->default_state ? bit : 0;
if ((found & bit) != expected) {
DRM_ERROR("mismatching default context state for class %d on engine %s\n",
engine->uabi_class, engine->name);
}
}
}
out_ctx:
i915_gem_context_unlock_engines(ctx);
i915_gem_context_set_closed(ctx);
@@ -1600,7 +1583,8 @@ err_unlock:
void i915_gem_driver_register(struct drm_i915_private *i915)
{
i915_gem_driver_register__shrinker(i915);
intel_engines_set_scheduler_caps(i915);
intel_engines_driver_register(i915);
}
void i915_gem_driver_unregister(struct drm_i915_private *i915)