Re: [PATCH] drm/i915/selftests: prefer the create_user helper

[Jason Ekstrand <jason@jlekstrand.net>]

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On July 28, 2021 10:57:23 Matthew Auld <matthew.auld@intel.com> wrote:

> No need to hand roll the set_placements stuff, now that that we have a
> helper for this. Also no need to handle the -ENODEV case here, since
> NULL mr implies missing device support, where the for_each_memory_region
> helper will always skip over such regions.
>
> Signed-off-by: Matthew Auld <matthew.auld@intel.com>
> Cc: Jason Ekstrand <jason@jlekstrand.net>

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>


> ---
> .../drm/i915/gem/selftests/i915_gem_mman.c    | 46 ++-----------------
> 1 file changed, 4 insertions(+), 42 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c 
> b/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
> index 0b2b73d8a364..eed1c2c64e75 100644
> --- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
> +++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
> @@ -860,24 +860,6 @@ static bool can_mmap(struct drm_i915_gem_object *obj, 
> enum i915_mmap_type type)
>  return !no_map;
> }
>
> -static void object_set_placements(struct drm_i915_gem_object *obj,
> -  struct intel_memory_region **placements,
> -  unsigned int n_placements)
> -{
> - GEM_BUG_ON(!n_placements);
> -
> - if (n_placements == 1) {
> - struct drm_i915_private *i915 = to_i915(obj->base.dev);
> - struct intel_memory_region *mr = placements[0];
> -
> - obj->mm.placements = &i915->mm.regions[mr->id];
> - obj->mm.n_placements = 1;
> - } else {
> - obj->mm.placements = placements;
> - obj->mm.n_placements = n_placements;
> - }
> -}
> -
> #define expand32(x) (((x) << 0) | ((x) << 8) | ((x) << 16) | ((x) << 24))
> static int __igt_mmap(struct drm_i915_private *i915,
>       struct drm_i915_gem_object *obj,
> @@ -972,15 +954,10 @@ static int igt_mmap(void *arg)
>  struct drm_i915_gem_object *obj;
>  int err;
>
> - obj = i915_gem_object_create_region(mr, sizes[i], 0, I915_BO_ALLOC_USER);
> - if (obj == ERR_PTR(-ENODEV))
> - continue;
> -
> + obj = __i915_gem_object_create_user(i915, sizes[i], &mr, 1);
>  if (IS_ERR(obj))
>  return PTR_ERR(obj);
>
> - object_set_placements(obj, &mr, 1);
> -
>  err = __igt_mmap(i915, obj, I915_MMAP_TYPE_GTT);
>  if (err == 0)
>  err = __igt_mmap(i915, obj, I915_MMAP_TYPE_WC);
> @@ -1101,15 +1078,10 @@ static int igt_mmap_access(void *arg)
>  struct drm_i915_gem_object *obj;
>  int err;
>
> - obj = i915_gem_object_create_region(mr, PAGE_SIZE, 0, I915_BO_ALLOC_USER);
> - if (obj == ERR_PTR(-ENODEV))
> - continue;
> -
> + obj = __i915_gem_object_create_user(i915, PAGE_SIZE, &mr, 1);
>  if (IS_ERR(obj))
>  return PTR_ERR(obj);
>
> - object_set_placements(obj, &mr, 1);
> -
>  err = __igt_mmap_access(i915, obj, I915_MMAP_TYPE_GTT);
>  if (err == 0)
>  err = __igt_mmap_access(i915, obj, I915_MMAP_TYPE_WB);
> @@ -1248,15 +1220,10 @@ static int igt_mmap_gpu(void *arg)
>  struct drm_i915_gem_object *obj;
>  int err;
>
> - obj = i915_gem_object_create_region(mr, PAGE_SIZE, 0, I915_BO_ALLOC_USER);
> - if (obj == ERR_PTR(-ENODEV))
> - continue;
> -
> + obj = __i915_gem_object_create_user(i915, PAGE_SIZE, &mr, 1);
>  if (IS_ERR(obj))
>  return PTR_ERR(obj);
>
> - object_set_placements(obj, &mr, 1);
> -
>  err = __igt_mmap_gpu(i915, obj, I915_MMAP_TYPE_GTT);
>  if (err == 0)
>  err = __igt_mmap_gpu(i915, obj, I915_MMAP_TYPE_WC);
> @@ -1405,15 +1372,10 @@ static int igt_mmap_revoke(void *arg)
>  struct drm_i915_gem_object *obj;
>  int err;
>
> - obj = i915_gem_object_create_region(mr, PAGE_SIZE, 0, I915_BO_ALLOC_USER);
> - if (obj == ERR_PTR(-ENODEV))
> - continue;
> -
> + obj = __i915_gem_object_create_user(i915, PAGE_SIZE, &mr, 1);
>  if (IS_ERR(obj))
>  return PTR_ERR(obj);
>
> - object_set_placements(obj, &mr, 1);
> -
>  err = __igt_mmap_revoke(i915, obj, I915_MMAP_TYPE_GTT);
>  if (err == 0)
>  err = __igt_mmap_revoke(i915, obj, I915_MMAP_TYPE_WC);
> --
> 2.26.3


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