Commit f7978a0c authored Aug 22, 2016 by Chris Wilson

drm/i915: Allow the user to pass a context to any ring

With full-ppgtt, we want the user to have full control over their memory
layout, with a separate instance per context. Forcing them to use a
shared memory layout for !RCS not only duplicates the amount of work we
have to do, but also defeats the memory segregation on offer.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20160822080350.4964-4-chris@chris-wilson.co.uk

Reviewed-by: John Harrison <john.c.harrison@intel.com>
Reviewed-by: Thomas Daniel <thomas.daniel@intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>

parent 7850d1c3

drivers/gpu/drm/i915/i915_gem_execbuffer.c

+1 −4

Original line number	Diff line number	Diff line
		@@ -1253,12 +1253,9 @@ static struct i915_gem_context *
		i915_gem_validate_context(struct drm_device dev, struct drm_file file,
		struct intel_engine_cs *engine, const u32 ctx_id)
		{
		struct i915_gem_context *ctx = NULL;
		struct i915_gem_context *ctx;
		struct i915_ctx_hang_stats *hs;

		if (engine->id != RCS && ctx_id != DEFAULT_CONTEXT_HANDLE)
		return ERR_PTR(-EINVAL);

		ctx = i915_gem_context_lookup(file->driver_priv, ctx_id);
		if (IS_ERR(ctx))
		return ctx;