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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2019-12-21 16:03:24 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-12-21 16:37:10 +0000 |
| commit | e6ba76480299a0d77c51d846f7467b1673aad25b (patch) | |
| tree | 24bad1dcbefe236853b13988bf63341ddd5e12e3 /drivers/gpu/drm/i915/gt/intel_engine_cs.c | |
| parent | ed7dd73cd8ca143ddd80654c67e5d2e66e3df42f (diff) | |
| download | linux-e6ba76480299a0d77c51d846f7467b1673aad25b.tar.bz2 | |
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 <chris@chris-wilson.co.uk>
Cc: Andi Shyti <andi.shyti@intel.com>
Acked-by: Andi Shyti <andi.shyti@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191221160324.1073045-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_engine_cs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_engine_cs.c | 23 |
1 files changed, 9 insertions, 14 deletions
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; } /** |