From 1a8406795052e3ec49e400465f3211d04fd9dd86 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Wed, 30 Apr 2008 16:03:15 -0700
Subject: Hacking towards hooking up execbuffer.

---
 linux-core/Makefile.kernel |  2 +-
 linux-core/drmP.h          |  4 ++++
 linux-core/drm_memrange.c  | 25 +++++++++++++++++++++++++
 3 files changed, 30 insertions(+), 1 deletion(-)

(limited to 'linux-core')

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)
-- 
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