From e6ba76480299a0d77c51d846f7467b1673aad25b Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Sat, 21 Dec 2019 16:03:24 +0000 Subject: drm/i915: Remove i915->kernel_context Allocate only an internal intel_context for the kernel_context, forgoing a global GEM context for internal use as we only require a separate address space (for our own protection). Now having weaned GT from requiring ce->gem_context, we can stop referencing it entirely. This also means we no longer have to create random and unnecessary GEM contexts for internal use. GEM contexts are now entirely for tracking GEM clients, and intel_context the execution environment on the GPU. Signed-off-by: Chris Wilson Cc: Andi Shyti Acked-by: Andi Shyti Link: https://patchwork.freedesktop.org/patch/msgid/20191221160324.1073045-1-chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/gt/intel_engine_cs.c | 23 +++++++++-------------- 1 file changed, 9 insertions(+), 14 deletions(-) (limited to 'drivers/gpu/drm/i915/gt/intel_engine_cs.c') diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c index e091b3366eae..0c4c07072473 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c @@ -759,13 +759,13 @@ create_kernel_context(struct intel_engine_cs *engine) struct intel_context *ce; int err; - ce = intel_context_create(engine->i915->kernel_context, engine); + ce = intel_context_create(engine); if (IS_ERR(ce)) return ce; - ce->ring = __intel_context_ring_size(SZ_4K); + __set_bit(CONTEXT_BARRIER_BIT, &ce->flags); - err = intel_context_pin(ce); + err = intel_context_pin(ce); /* perma-pin so it is always available */ if (err) { intel_context_put(ce); return ERR_PTR(err); @@ -800,6 +800,12 @@ int intel_engine_init_common(struct intel_engine_cs *engine) engine->set_default_submission(engine); + ret = measure_breadcrumb_dw(engine); + if (ret < 0) + return ret; + + engine->emit_fini_breadcrumb_dw = ret; + /* * We may need to do things with the shrinker which * require us to immediately switch back to the default @@ -814,18 +820,7 @@ int intel_engine_init_common(struct intel_engine_cs *engine) engine->kernel_context = ce; - ret = measure_breadcrumb_dw(engine); - if (ret < 0) - goto err_unpin; - - engine->emit_fini_breadcrumb_dw = ret; - return 0; - -err_unpin: - intel_context_unpin(ce); - intel_context_put(ce); - return ret; } /** -- cgit v1.2.1