Commit 1b8bfc57 authored Jan 10, 2020 by Chris Wilson

drm/i915/gt: Mark context->state vma as active while pinned



As we use the active state to keep the vma alive while we are reading
its contents during GPU error capture, we need to mark the
context->state vma as active during execution if we want to include it
in the error state.

Reported-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Fixes: b1e3177b ("drm/i915: Coordinate i915_active with its own mutex")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Acked-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200110110402.1231745-2-chris@chris-wilson.co.uk

parent 80e5351d

drivers/gpu/drm/i915/gt/intel_context.c

+9 −0

Original line number	Diff line number	Diff line
		@@ -160,6 +160,10 @@ static int __context_pin_state(struct i915_vma *vma)
		if (err)
		return err;

		err = i915_active_acquire(&vma->active);
		if (err)
		goto err_unpin;

		/*
		* And mark it as a globally pinned object to let the shrinker know
		* it cannot reclaim the object until we release it.
		@@ -168,11 +172,16 @@ static int __context_pin_state(struct i915_vma *vma)
		vma->obj->mm.dirty = true;

		return 0;

		err_unpin:
		i915_vma_unpin(vma);
		return err;
		}

		static void __context_unpin_state(struct i915_vma *vma)
		{
		i915_vma_make_shrinkable(vma);
		i915_active_release(&vma->active);
		__i915_vma_unpin(vma);
		}

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