From: Alan Cox <a...@linux.intel.com>
We are using the underlying kref in the GEM object so we don't need our own
Signed-off-by: Alan Cox <a...@linux.intel.com>
---
drivers/staging/gma500/psb_fb.c | 1 -
drivers/staging/gma500/psb_gtt.c | 41 ++++++--------------------------------
drivers/staging/gma500/psb_gtt.h | 1 -
3 files changed, 6 insertions(+), 37 deletions(-)
diff --git a/drivers/staging/gma500/psb_fb.c b/drivers/staging/gma500/psb_fb.c
index 988f4db..fb75aba 100644
--- a/drivers/staging/gma500/psb_fb.c
+++ b/drivers/staging/gma500/psb_fb.c
@@ -231,7 +231,6 @@ static int psbfb_mmap(struct fb_info *info, struct
vm_area_struct *vma)
struct psb_fbdev *fbdev = info->par;
struct psb_framebuffer *psbfb = &fbdev->pfb;
char *fb_screen_base = NULL;
- struct drm_device *dev = psbfb->base.dev;
if (vma->vm_pgoff != 0)
return -EINVAL;
diff --git a/drivers/staging/gma500/psb_gtt.c b/drivers/staging/gma500/psb_gtt.c
index 54a9308..9da1375 100644
--- a/drivers/staging/gma500/psb_gtt.c
+++ b/drivers/staging/gma500/psb_gtt.c
@@ -303,8 +303,6 @@ struct gtt_range *psb_gtt_alloc_range(struct drm_device
*dev, int len,
gt->in_gart = backed;
/* Ensure this is set for non GEM objects */
gt->gem.dev = dev;
- kref_init(>->kref);
-
ret = allocate_resource(dev_priv->gtt_mem, >->resource,
len, start, end, PAGE_SIZE, NULL, NULL);
if (ret == 0) {
@@ -316,18 +314,15 @@ struct gtt_range *psb_gtt_alloc_range(struct drm_device
*dev, int len,
}
/**
- * psb_gtt_destroy - final free up of a gtt
- * @kref: the kref of the gtt
- *
- * Called from the kernel kref put when the final reference to our
- * GTT object is dropped. At that point we can free up the resources.
+ * psb_gtt_free_range - release GTT address space
+ * @dev: our DRM device
+ * @gt: a mapping created with psb_gtt_alloc_range
*
- * For now we handle mmap clean up here to work around limits in GEM
+ * Release a resource that was allocated with psb_gtt_alloc_range. If the
object
+ * has been pinned by mmap users we clean this up here currently.
*/
-static void psb_gtt_destroy(struct kref *kref)
+void psb_gtt_free_range(struct drm_device *dev, struct gtt_range *gt)
{
- struct gtt_range *gt = container_of(kref, struct gtt_range, kref);
-
/* Undo the mmap pin if we are destroying the object */
if (gt->mmapping) {
psb_gtt_unpin(gt);
@@ -338,30 +333,6 @@ static void psb_gtt_destroy(struct kref *kref)
kfree(gt);
}
-/**
- * psb_gtt_kref_put - drop reference to a GTT object
- * @gt: the GT being dropped
- *
- * Drop a reference to a psb gtt
- */
-void psb_gtt_kref_put(struct gtt_range *gt)
-{
- kref_put(>->kref, psb_gtt_destroy);
-}
-
-/**
- * psb_gtt_free_range - release GTT address space
- * @dev: our DRM device
- * @gt: a mapping created with psb_gtt_alloc_range
- *
- * Release a resource that was allocated with psb_gtt_alloc_range
- */
-void psb_gtt_free_range(struct drm_device *dev, struct gtt_range *gt)
-{
- psb_gtt_kref_put(gt);
-}
-
-
struct psb_gtt *psb_gtt_alloc(struct drm_device *dev)
{
struct psb_gtt *tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
diff --git a/drivers/staging/gma500/psb_gtt.h b/drivers/staging/gma500/psb_gtt.h
index 7e1f21e..4d6dc5f 100644
--- a/drivers/staging/gma500/psb_gtt.h
+++ b/drivers/staging/gma500/psb_gtt.h
@@ -44,7 +44,6 @@ extern void psb_gtt_takedown(struct drm_device *dev);
struct gtt_range {
struct resource resource; /* Resource for our allocation */
u32 offset; /* GTT offset of our object */
- struct kref kref; /* Can probably go FIXME - GEM kref
will do */
struct drm_gem_object gem; /* GEM high level stuff */
int in_gart; /* Currently in the GART (ref ct) */
bool stolen; /* Backed from stolen RAM */
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