Quoting Tvrtko Ursulin (2019-06-13 16:19:02)
> From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
>
> This will become useful in the following patch.
>
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/gt/intel_gt_types.h | 2 ++
> drivers/gpu/drm/i915/i915_gem_gtt.c | 1 +
> 2 files changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/gt/intel_gt_types.h b/drivers/gpu/drm/i915/gt/intel_gt_types.h
> index 99e30f8cfbe0..c909aae6e4b3 100644
> --- a/drivers/gpu/drm/i915/gt/intel_gt_types.h
> +++ b/drivers/gpu/drm/i915/gt/intel_gt_types.h
> @@ -18,11 +18,13 @@
> #include "intel_wakeref.h"
>
> struct drm_i915_private;
> +struct i915_ggtt;
> struct intel_uncore;
>
> struct intel_gt {
> struct drm_i915_private *i915;
> struct intel_uncore *uncore;
> + struct i915_ggtt *ggtt;
But not moving i915->ggtt itself?
> struct i915_gt_timelines {
> struct mutex mutex; /* protects list, tainted by GPU */
> diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
> index ea276ed9021a..9aa25770081c 100644
> --- a/drivers/gpu/drm/i915/i915_gem_gtt.c
> +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
> @@ -3618,6 +3618,7 @@ static int ggtt_init_hw(struct i915_ggtt *ggtt)
> i915_address_space_init(vm, VM_CLASS_GGTT);
>
> vm->is_ggtt = true;
> + vm->gt->ggtt = ggtt;
This looks very much to be a layer violation.
-Chris
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