[Intel-gfx] [PATCH v6 16/32] drm/i915: Extract PPGTT param from page_directory alloc

[Michel Thierry]

From: Ben Widawsky <benjamin.widawsky at intel.com>

Now that we don't need to trace num_pd_pages, we may as well kill all
need for the PPGTT structure in the alloc_page_directorys. This is very useful
for when we move to 48b addressing, and the PDP isn't the root of the
page table structure.

The param is replaced with drm_device, which is an unavoidable wart
throughout the series. (in other words, not extra flagrant).

Signed-off-by: Ben Widawsky <ben at bwidawsk.net>
Signed-off-by: Michel Thierry <michel.thierry at intel.com>
---
 drivers/gpu/drm/i915/i915_gem_gtt.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index bddfcc2..678ab62 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -689,8 +689,6 @@ static int gen8_ppgtt_alloc_page_directories(struct i915_page_directory_pointer_
 				     uint64_t start,
 				     uint64_t length)
 {
-	struct i915_hw_ppgtt *ppgtt =
-		container_of(pdp, struct i915_hw_ppgtt, pdp);
 	struct i915_page_directory_entry *unused;
 	uint64_t temp;
 	uint32_t pdpe;
@@ -701,7 +699,7 @@ static int gen8_ppgtt_alloc_page_directories(struct i915_page_directory_pointer_
 	gen8_for_each_pdpe(unused, pdp, start, length, temp, pdpe) {
 		BUG_ON(unused);
 		pdp->page_directory[pdpe] = alloc_pd_single();
-		if (IS_ERR(ppgtt->pdp.page_directory[pdpe]))
+		if (IS_ERR(pdp->page_directory[pdpe]))
 			goto unwind_out;
 	}
 
@@ -709,7 +707,7 @@ static int gen8_ppgtt_alloc_page_directories(struct i915_page_directory_pointer_
 
 unwind_out:
 	while (pdpe--)
-		unmap_and_free_pd(ppgtt->pdp.page_directory[pdpe]);
+		unmap_and_free_pd(pdp->page_directory[pdpe]);
 
 	return -ENOMEM;
 }
-- 
2.1.1