On Fri, Jun 14, 2019 at 04:17:26PM +0100, Tvrtko Ursulin wrote:
> From: Tvrtko Ursulin <[email protected]>
> 
> This will become useful in the following patch.
> 
> v2:
>  * Assign the pointer through a helper on the top level to work around
>    the layering violation. (Chris)
> 
> Signed-off-by: Tvrtko Ursulin <[email protected]>

Reviewed-by: Rodrigo Vivi <[email protected]>

> ---
>  drivers/gpu/drm/i915/gt/intel_gt.c       | 5 +++++
>  drivers/gpu/drm/i915/gt/intel_gt.h       | 1 +
>  drivers/gpu/drm/i915/gt/intel_gt_types.h | 2 ++
>  drivers/gpu/drm/i915/i915_drv.c          | 2 ++
>  4 files changed, 10 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c 
> b/drivers/gpu/drm/i915/gt/intel_gt.c
> index 5bc460d68c8b..6746c40c2132 100644
> --- a/drivers/gpu/drm/i915/gt/intel_gt.c
> +++ b/drivers/gpu/drm/i915/gt/intel_gt.c
> @@ -20,6 +20,11 @@ void intel_gt_init(struct intel_gt *gt, struct 
> drm_i915_private *i915)
>       spin_lock_init(&gt->closed_lock);
>  }
>  
> +void intel_gt_init_hw(struct drm_i915_private *i915)
> +{
> +     i915->gt.ggtt = &i915->ggtt;
> +}
> +
>  static void rmw_set(struct intel_uncore *uncore, i915_reg_t reg, u32 set)
>  {
>       intel_uncore_rmw(uncore, reg, 0, set);
> diff --git a/drivers/gpu/drm/i915/gt/intel_gt.h 
> b/drivers/gpu/drm/i915/gt/intel_gt.h
> index 8d84716c3b3b..53fcf4f276d3 100644
> --- a/drivers/gpu/drm/i915/gt/intel_gt.h
> +++ b/drivers/gpu/drm/i915/gt/intel_gt.h
> @@ -12,6 +12,7 @@
>  #include "i915_drv.h"
>  
>  void intel_gt_init(struct intel_gt *gt, struct drm_i915_private *i915);
> +void intel_gt_init_hw(struct drm_i915_private *i915);
>  
>  void intel_gt_check_and_clear_faults(struct intel_gt *gt);
>  void intel_gt_clear_error_registers(struct intel_gt *gt,
> diff --git a/drivers/gpu/drm/i915/gt/intel_gt_types.h 
> b/drivers/gpu/drm/i915/gt/intel_gt_types.h
> index d96df4f68741..233f73316a43 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;
>  
>       struct i915_gt_timelines {
>               struct mutex mutex; /* protects list, tainted by GPU */
> diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
> index 1df76f7c717e..783cbbda75fb 100644
> --- a/drivers/gpu/drm/i915/i915_drv.c
> +++ b/drivers/gpu/drm/i915/i915_drv.c
> @@ -1584,6 +1584,8 @@ static int i915_driver_init_hw(struct drm_i915_private 
> *dev_priv)
>       if (ret)
>               goto err_ggtt;
>  
> +     intel_gt_init_hw(dev_priv);
> +
>       ret = i915_ggtt_enable_hw(dev_priv);
>       if (ret) {
>               DRM_ERROR("failed to enable GGTT\n");
> -- 
> 2.20.1
> 
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