[PATCH 8/8] drm/gma500: Add backing type and base align to psb_gem_create()

[Patrik Jakobsson]

We'll need this for our gem create ioctl in a later patch.

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson at gmail.com>
---
 drivers/gpu/drm/gma500/framebuffer.c       |  2 +-
 drivers/gpu/drm/gma500/gem.c               |  9 +++++----
 drivers/gpu/drm/gma500/gem.h               | 21 +++++++++++++++++++++
 drivers/gpu/drm/gma500/gtt.c               |  4 ++--
 drivers/gpu/drm/gma500/gtt.h               |  3 ++-
 drivers/gpu/drm/gma500/psb_intel_display.c |  3 ++-
 6 files changed, 33 insertions(+), 9 deletions(-)
 create mode 100644 drivers/gpu/drm/gma500/gem.h

diff --git a/drivers/gpu/drm/gma500/framebuffer.c b/drivers/gpu/drm/gma500/framebuffer.c
index 94b3fec..e7fcc14 100644
--- a/drivers/gpu/drm/gma500/framebuffer.c
+++ b/drivers/gpu/drm/gma500/framebuffer.c
@@ -319,7 +319,7 @@ static struct gtt_range *psbfb_alloc(struct drm_device *dev, int aligned_size)
 {
 	struct gtt_range *backing;
 	/* Begin by trying to use stolen memory backing */
-	backing = psb_gtt_alloc_range(dev, aligned_size, "fb", 1);
+	backing = psb_gtt_alloc_range(dev, aligned_size, "fb", 1, PAGE_SIZE);
 	if (backing) {
 		drm_gem_private_object_init(dev, &backing->gem, aligned_size);
 		return backing;
diff --git a/drivers/gpu/drm/gma500/gem.c b/drivers/gpu/drm/gma500/gem.c
index 1e33a71..d0243c0 100644
--- a/drivers/gpu/drm/gma500/gem.c
+++ b/drivers/gpu/drm/gma500/gem.c
@@ -98,8 +98,8 @@ unlock:
  *	it so that userspace can speak about it. This does the core work
  *	for the various methods that do/will create GEM objects for things
  */
-static int psb_gem_create(struct drm_file *file,
-	struct drm_device *dev, uint64_t size, uint32_t *handlep)
+int psb_gem_create(struct drm_file *file, struct drm_device *dev, u64 size,
+		   u32 *handlep, int stolen, u32 align)
 {
 	struct gtt_range *r;
 	int ret;
@@ -109,7 +109,7 @@ static int psb_gem_create(struct drm_file *file,
 
 	/* Allocate our object - for now a direct gtt range which is not
 	   stolen memory backed */
-	r = psb_gtt_alloc_range(dev, size, "gem", 0);
+	r = psb_gtt_alloc_range(dev, size, "gem", 0, PAGE_SIZE);
 	if (r == NULL) {
 		dev_err(dev->dev, "no memory for %lld byte GEM object\n", size);
 		return -ENOSPC;
@@ -153,7 +153,8 @@ int psb_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
 {
 	args->pitch = ALIGN(args->width * ((args->bpp + 7) / 8), 64);
 	args->size = args->pitch * args->height;
-	return psb_gem_create(file, dev, args->size, &args->handle);
+	return psb_gem_create(file, dev, args->size, &args->handle, 0,
+			      PAGE_SIZE);
 }
 
 /**
diff --git a/drivers/gpu/drm/gma500/gem.h b/drivers/gpu/drm/gma500/gem.h
new file mode 100644
index 0000000..1381c51
--- /dev/null
+++ b/drivers/gpu/drm/gma500/gem.h
@@ -0,0 +1,21 @@
+/**************************************************************************
+ * Copyright (c) 2014 Patrik Jakobsson
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ **************************************************************************/
+
+#ifndef _GEM_H
+#define _GEM_H
+
+extern int psb_gem_create(struct drm_file *file, struct drm_device *dev,
+			  u64 size, u32 *handlep, int stolen, u32 align);
+#endif
diff --git a/drivers/gpu/drm/gma500/gtt.c b/drivers/gpu/drm/gma500/gtt.c
index a30f6ee..592d205 100644
--- a/drivers/gpu/drm/gma500/gtt.c
+++ b/drivers/gpu/drm/gma500/gtt.c
@@ -330,7 +330,7 @@ out:
  *	as in use.
  */
 struct gtt_range *psb_gtt_alloc_range(struct drm_device *dev, int len,
-						const char *name, int backed)
+				      const char *name, int backed, u32 align)
 {
 	struct drm_psb_private *dev_priv = dev->dev_private;
 	struct gtt_range *gt;
@@ -358,7 +358,7 @@ struct gtt_range *psb_gtt_alloc_range(struct drm_device *dev, int len,
 	/* Ensure this is set for non GEM objects */
 	gt->gem.dev = dev;
 	ret = allocate_resource(dev_priv->gtt_mem, &gt->resource,
-				len, start, end, PAGE_SIZE, NULL, NULL);
+				len, start, end, align, NULL, NULL);
 	if (ret == 0) {
 		gt->offset = gt->resource.start - r->start;
 		return gt;
diff --git a/drivers/gpu/drm/gma500/gtt.h b/drivers/gpu/drm/gma500/gtt.h
index 6191d10..f5860a7 100644
--- a/drivers/gpu/drm/gma500/gtt.h
+++ b/drivers/gpu/drm/gma500/gtt.h
@@ -53,7 +53,8 @@ struct gtt_range {
 };
 
 extern struct gtt_range *psb_gtt_alloc_range(struct drm_device *dev, int len,
-						const char *name, int backed);
+					     const char *name, int backed,
+					     u32 align);
 extern void psb_gtt_kref_put(struct gtt_range *gt);
 extern void psb_gtt_free_range(struct drm_device *dev, struct gtt_range *gt);
 extern int psb_gtt_pin(struct gtt_range *gt);
diff --git a/drivers/gpu/drm/gma500/psb_intel_display.c b/drivers/gpu/drm/gma500/psb_intel_display.c
index f65bcc4f7..21aed85 100644
--- a/drivers/gpu/drm/gma500/psb_intel_display.c
+++ b/drivers/gpu/drm/gma500/psb_intel_display.c
@@ -469,7 +469,8 @@ static void psb_intel_cursor_init(struct drm_device *dev,
 		/* Allocate 4 pages of stolen mem for a hardware cursor. That
 		 * is enough for the 64 x 64 ARGB cursors we support.
 		 */
-		cursor_gt = psb_gtt_alloc_range(dev, 4 * PAGE_SIZE, "cursor", 1);
+		cursor_gt = psb_gtt_alloc_range(dev, 4 * PAGE_SIZE, "cursor", 1,
+						PAGE_SIZE);
 		if (!cursor_gt) {
 			gma_crtc->cursor_gt = NULL;
 			goto out;
-- 
1.8.3.2