Re: [PATCH 02/22] drm/i915: Remove surplus drm_device parameter to i915_gem_evict_something()

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On ke, 2016-07-27 at 12:14 +0100, Chris Wilson wrote:
> Eviction is VM local, so we can ignore the significance of the
> drm_device in the caller, and leave it to i915_gem_evict_something() to
> manager itself.

s/manager/manage/?

Reviewed-by: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>

Regards, Joonas
> 
> Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/i915_drv.h       |  3 +--
>  drivers/gpu/drm/i915/i915_gem.c       |  2 +-
>  drivers/gpu/drm/i915/i915_gem_evict.c |  9 ++++-----
>  drivers/gpu/drm/i915/i915_gem_gtt.c   |  2 +-
>  drivers/gpu/drm/i915/i915_trace.h     | 14 ++++++++------
>  5 files changed, 15 insertions(+), 15 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 66b98fa4715a..fbda38f25c6b 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -3398,8 +3398,7 @@ int i915_gem_context_reset_stats_ioctl(struct drm_device *dev, void *data,
>  				       struct drm_file *file);
>  
>  /* i915_gem_evict.c */
> -int __must_check i915_gem_evict_something(struct drm_device *dev,
> -					  struct i915_address_space *vm,
> +int __must_check i915_gem_evict_something(struct i915_address_space *vm,
>  					  int min_size,
>  					  unsigned alignment,
>  					  unsigned cache_level,
> diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
> index e3278f4e1ad2..bf652dc88024 100644
> --- a/drivers/gpu/drm/i915/i915_gem.c
> +++ b/drivers/gpu/drm/i915/i915_gem.c
> @@ -3093,7 +3093,7 @@ search_free:
>  							  search_flag,
>  							  alloc_flag);
>  		if (ret) {
> -			ret = i915_gem_evict_something(dev, vm, size, alignment,
> +			ret = i915_gem_evict_something(vm, size, alignment,
>  						       obj->cache_level,
>  						       start, end,
>  						       flags);
> diff --git a/drivers/gpu/drm/i915/i915_gem_evict.c b/drivers/gpu/drm/i915/i915_gem_evict.c
> index 016be7316676..4bce72fa14c4 100644
> --- a/drivers/gpu/drm/i915/i915_gem_evict.c
> +++ b/drivers/gpu/drm/i915/i915_gem_evict.c
> @@ -61,7 +61,6 @@ mark_free(struct i915_vma *vma, struct list_head *unwind)
>  
>  /**
>   * i915_gem_evict_something - Evict vmas to make room for binding a new one
> - * @dev: drm_device
>   * @vm: address space to evict from
>   * @min_size: size of the desired free space
>   * @alignment: alignment constraint of the desired free space
> @@ -84,12 +83,12 @@ mark_free(struct i915_vma *vma, struct list_head *unwind)
>   * memory in e.g. the shrinker.
>   */
>  int
> -i915_gem_evict_something(struct drm_device *dev, struct i915_address_space *vm,
> +i915_gem_evict_something(struct i915_address_space *vm,
>  			 int min_size, unsigned alignment, unsigned cache_level,
>  			 unsigned long start, unsigned long end,
>  			 unsigned flags)
>  {
> -	struct drm_i915_private *dev_priv = to_i915(dev);
> +	struct drm_i915_private *dev_priv = to_i915(vm->dev);
>  	struct list_head eviction_list;
>  	struct list_head *phases[] = {
>  		&vm->inactive_list,
> @@ -99,7 +98,7 @@ i915_gem_evict_something(struct drm_device *dev, struct i915_address_space *vm,
>  	struct i915_vma *vma, *next;
>  	int ret;
>  
> -	trace_i915_gem_evict(dev, min_size, alignment, flags);
> +	trace_i915_gem_evict(vm, min_size, alignment, flags);
>  
>  	/*
>  	 * The goal is to evict objects and amalgamate space in LRU order.
> @@ -154,7 +153,7 @@ search_again:
>  		 * back to userspace to give our workqueues time to
>  		 * acquire our locks and unpin the old scanouts.
>  		 */
> -		return intel_has_pending_fb_unpin(dev) ? -EAGAIN : -ENOSPC;
> +		return intel_has_pending_fb_unpin(vm->dev) ? -EAGAIN : -ENOSPC;
>  	}
>  
>  	/* Not everything in the GGTT is tracked via vma (otherwise we
> diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
> index 59ecaf2c8bf8..5869fa074009 100644
> --- a/drivers/gpu/drm/i915/i915_gem_gtt.c
> +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
> @@ -2012,7 +2012,7 @@ alloc:
>  						  0, ggtt->base.total,
>  						  DRM_MM_TOPDOWN);
>  	if (ret == -ENOSPC && !retried) {
> -		ret = i915_gem_evict_something(dev, &ggtt->base,
> +		ret = i915_gem_evict_something(&ggtt->base,
>  					       GEN6_PD_SIZE, GEN6_PD_ALIGN,
>  					       I915_CACHE_NONE,
>  					       0, ggtt->base.total,
> diff --git a/drivers/gpu/drm/i915/i915_trace.h b/drivers/gpu/drm/i915/i915_trace.h
> index 9e43c0aa6e3b..178798002a73 100644
> --- a/drivers/gpu/drm/i915/i915_trace.h
> +++ b/drivers/gpu/drm/i915/i915_trace.h
> @@ -394,25 +394,27 @@ DEFINE_EVENT(i915_gem_object, i915_gem_object_destroy,
>  );
>  
>  TRACE_EVENT(i915_gem_evict,
> -	    TP_PROTO(struct drm_device *dev, u32 size, u32 align, unsigned flags),
> -	    TP_ARGS(dev, size, align, flags),
> +	    TP_PROTO(struct i915_address_space *vm, u32 size, u32 align, unsigned int flags),
> +	    TP_ARGS(vm, size, align, flags),
>  
>  	    TP_STRUCT__entry(
>  			     __field(u32, dev)
> +			     __field(struct i915_address_space *, vm)
>  			     __field(u32, size)
>  			     __field(u32, align)
> -			     __field(unsigned, flags)
> +			     __field(unsigned int, flags)
>  			    ),
>  
>  	    TP_fast_assign(
> -			   __entry->dev = dev->primary->index;
> +			   __entry->dev = vm->dev->primary->index;
> +			   __entry->vm = vm;
>  			   __entry->size = size;
>  			   __entry->align = align;
>  			   __entry->flags = flags;
>  			  ),
>  
> -	    TP_printk("dev=%d, size=%d, align=%d %s",
> -		      __entry->dev, __entry->size, __entry->align,
> +	    TP_printk("dev=%d, vm=%p, size=%d, align=%d %s",
> +		      __entry->dev, __entry->vm, __entry->size, __entry->align,
>  		      __entry->flags & PIN_MAPPABLE ? ", mappable" : "")
>  );
>  
-- 
Joonas Lahtinen
Open Source Technology Center
Intel Corporation
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