[PATCH 02/18] drm/i915: introduce drm_i915_gem_object page_size members

[Matthew Auld <matthew.auld@intel.com>]

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
---
 drivers/gpu/drm/i915/i915_gem.c        | 5 +++++
 drivers/gpu/drm/i915/i915_gem_object.h | 3 +++
 2 files changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 4ca88f2539c0..cbf97f4bbb72 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2441,6 +2441,8 @@ static int ____i915_gem_object_get_pages(struct drm_i915_gem_object *obj)
 	struct sg_table *pages;
 
 	GEM_BUG_ON(i915_gem_object_has_pinned_pages(obj));
+	GEM_BUG_ON(!is_valid_gtt_page_size(obj->page_size));
+	GEM_BUG_ON(!is_valid_gtt_page_size(obj->gtt_page_size));
 
 	if (unlikely(obj->mm.madv != I915_MADV_WILLNEED)) {
 		DRM_DEBUG("Attempting to obtain a purgeable object\n");
@@ -4159,6 +4161,9 @@ void i915_gem_object_init(struct drm_i915_gem_object *obj,
 
 	obj->ops = ops;
 
+	obj->page_size = PAGE_SIZE;
+	obj->gtt_page_size = I915_GTT_PAGE_SIZE;
+
 	reservation_object_init(&obj->__builtin_resv);
 	obj->resv = &obj->__builtin_resv;
 
diff --git a/drivers/gpu/drm/i915/i915_gem_object.h b/drivers/gpu/drm/i915/i915_gem_object.h
index 174cf923c236..b1dacbfe5173 100644
--- a/drivers/gpu/drm/i915/i915_gem_object.h
+++ b/drivers/gpu/drm/i915/i915_gem_object.h
@@ -107,6 +107,9 @@ struct drm_i915_gem_object {
 	unsigned int cache_level:3;
 	unsigned int cache_dirty:1;
 
+	unsigned int page_size; /* CPU pov - 4K(default), 2M, 1G */
+	unsigned int gtt_page_size; /* GPU pov - 4K(default), 64K, 2M, 1G */
+
 	atomic_t frontbuffer_bits;
 	unsigned int frontbuffer_ggtt_origin; /* write once */
 	struct i915_gem_active frontbuffer_write;
-- 
2.9.3

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