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-rw-r--r--linux-core/Makefile.kernel2
-rw-r--r--linux-core/drmP.h4
-rw-r--r--linux-core/drm_memrange.c25
3 files changed, 30 insertions, 1 deletions
diff --git a/linux-core/Makefile.kernel b/linux-core/Makefile.kernel
index 5b309bc1..97d53622 100644
--- a/linux-core/Makefile.kernel
+++ b/linux-core/Makefile.kernel
@@ -20,7 +20,7 @@ r128-objs := r128_drv.o r128_cce.o r128_state.o r128_irq.o
mga-objs := mga_drv.o mga_dma.o mga_state.o mga_warp.o mga_irq.o
i810-objs := i810_drv.o i810_dma.o
i915-objs := i915_drv.o i915_dma.o i915_irq.o i915_mem.o i915_fence.o \
- i915_buffer.o i915_compat.o i915_execbuf.o
+ i915_buffer.o i915_compat.o i915_execbuf.o i915_mm.o
nouveau-objs := nouveau_drv.o nouveau_state.o nouveau_fifo.o nouveau_mem.o \
nouveau_object.o nouveau_irq.o nouveau_notifier.o nouveau_swmthd.o \
nouveau_sgdma.o nouveau_dma.o nouveau_bo.o nouveau_fence.o \
diff --git a/linux-core/drmP.h b/linux-core/drmP.h
index 29dd4321..113cbecb 100644
--- a/linux-core/drmP.h
+++ b/linux-core/drmP.h
@@ -1278,6 +1278,10 @@ extern int drm_memrange_remove_space_from_tail(struct drm_memrange *mm,
unsigned long size);
extern int drm_memrange_add_space_to_tail(struct drm_memrange *mm,
unsigned long size);
+extern int drm_memrange_for_each(struct drm_memrange *mm,
+ int (*callback)(struct drm_memrange_node *node,
+ void *data),
+ void *data);
static inline struct drm_memrange *drm_get_mm(struct drm_memrange_node *block)
{
diff --git a/linux-core/drm_memrange.c b/linux-core/drm_memrange.c
index 0ae03655..e1d2233b 100644
--- a/linux-core/drm_memrange.c
+++ b/linux-core/drm_memrange.c
@@ -273,6 +273,31 @@ int drm_memrange_init(struct drm_memrange * mm, unsigned long start, unsigned lo
return drm_memrange_create_tail_node(mm, start, size);
}
+/**
+ * Walks the list of allocated memory ranges and calls the callback on
+ * one.
+ */
+int drm_memrange_for_each(struct drm_memrange *mm,
+ int (*callback)(struct drm_memrange_node *node,
+ void *data),
+ void *data)
+{
+ struct list_head *list, *next;
+
+ list_for_each_safe(list, next, &mm->ml_entry) {
+ struct drm_memrange_node *cur;
+ int ret;
+
+ cur = list_entry(list, struct drm_memrange_node, ml_entry);
+
+ ret = callback(cur, data);
+ if (ret != 0)
+ return ret;
+ }
+
+ return 0;
+}
+
EXPORT_SYMBOL(drm_memrange_init);
void drm_memrange_takedown(struct drm_memrange * mm)