kernel/drivers/gpu/drm/i915/selftests/mock_request.c, branch linux-4.17.y

drm/i915: Rename drm_i915_gem_request to i915_request

2018-02-21T20:57:22Z

We want to de-emphasize the link between the request (dependency, execution and fence tracking) from GEM and so rename the struct from drm_i915_gem_request to i915_request. That is we may implement the GEM user interface on top of requests, but they are an abstraction for tracking execution rather than an implementation detail of GEM. (Since they are not tied to HW, we keep the i915 prefix as opposed to intel.) In short, the spatch: @@ @@ - struct drm_i915_gem_request + struct i915_request A corollary to contracting the type name, we also harmonise on using 'rq' shorthand for local variables where space if of the essence and repetition makes 'request' unwieldy. For globals and struct members, 'request' is still much preferred for its clarity. Signed-off-by: Chris Wilson Cc: Joonas Lahtinen Cc: Mika Kuoppala Cc: Tvrtko Ursulin Cc: Michał Winiarski Cc: Michal Wajdeczko Link: https://patchwork.freedesktop.org/patch/msgid/20180221095636.6649-1-chris@chris-wilson.co.uk Reviewed-by: Mika Kuoppala Reviewed-by: Michał Winiarski Acked-by: Joonas Lahtinen

drm/i915: checking for NULL instead of IS_ERR() in mock selftests

2017-04-26T13:28:24Z

i915_gem_request_alloc() uses error pointers. It never returns NULLs. Fixes: 0daf0113cff6 ("drm/i915: Mock infrastructure for request emission") Signed-off-by: Dan Carpenter Link: http://patchwork.freedesktop.org/patch/msgid/20170413195217.GA26108@mwanda Reviewed-by: Chris Wilson Signed-off-by: Chris Wilson (cherry picked from commit be02f7556447a0dee672acb5e462f03377b98ae8) Signed-off-by: Jani Nikula

drm/i915: Exercise request cancellation using a mock selftest

2017-02-23T14:50:42Z

Add a mock selftest to preempt a request and check that we cancel it, requeue the request and then complete its execution. v2: Error leaks no more. Signed-off-by: Chris Wilson Link: http://patchwork.freedesktop.org/patch/msgid/20170223074422.4125-13-chris@chris-wilson.co.uk Reviewed-by: Tvrtko Ursulin

drm/i915: Mock infrastructure for request emission

2017-02-13T20:45:31Z

Create a fake engine that runs requests using a timer to simulate hw. v2: Prevent leaks of ctx->name along error paths Signed-off-by: Chris Wilson Reviewed-by: Tvrtko Ursulin Link: http://patchwork.freedesktop.org/patch/msgid/20170213171558.20942-8-chris@chris-wilson.co.uk