Commit ddfb570c authored Apr 11, 2017 by Daniele Ceraolo Spurio Committed by Chris Wilson Apr 11, 2017

drm/i915: Use the engine class to get the context size



Technically speaking, the context size is per engine class, not per
instance.

v2: Add MISSING_CASE (Tvrtko)

v3: Rebased

v4: Restore the interface back to hiding the class lookup (Chris)

Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1491905472-16189-1-git-send-email-oscar.mateo@intel.com


Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

parent 5f9be054

drivers/gpu/drm/i915/intel_lrc.c

+19 −10

Original line number	Diff line number	Diff line
		@@ -1923,21 +1923,30 @@ populate_lr_context(struct i915_gem_context *ctx,
		*/
		uint32_t intel_lr_context_size(struct intel_engine_cs *engine)
		{
		int ret = 0;
		struct drm_i915_private *dev_priv = engine->i915;
		int ret;

		WARN_ON(INTEL_GEN(engine->i915) < 8);
		WARN_ON(INTEL_GEN(dev_priv) < 8);

		switch (engine->id) {
		case RCS:
		if (INTEL_GEN(engine->i915) >= 9)
		switch (engine->class) {
		case RENDER_CLASS:
		switch (INTEL_GEN(dev_priv)) {
		default:
		MISSING_CASE(INTEL_GEN(dev_priv));
		case 9:
		ret = GEN9_LR_CONTEXT_RENDER_SIZE;
		else
		break;
		case 8:
		ret = GEN8_LR_CONTEXT_RENDER_SIZE;
		break;
		case VCS:
		case BCS:
		case VECS:
		case VCS2:
		}
		break;

		default:
		MISSING_CASE(engine->class);
		case VIDEO_DECODE_CLASS:
		case VIDEO_ENHANCEMENT_CLASS:
		case COPY_ENGINE_CLASS:
		ret = GEN8_LR_CONTEXT_OTHER_SIZE;
		break;
		}