3 files changed, 24 insertions, 4 deletions

diff --git a/include/asm-ia64/agp.h b/include/asm-ia64/agp.h
index d1316f1e6ee1..4e517f0e6afa 100644
--- a/include/asm-ia64/agp.h
+++ b/include/asm-ia64/agp.h
@@ -18,4 +18,14 @@
 #define flush_agp_mappings()            /* nothing */
 #define flush_agp_cache()               mb()
 
+/* Convert a physical address to an address suitable for the GART. */
+#define phys_to_gart(x) (x)
+#define gart_to_phys(x) (x)
+
+/* GATT allocation. Returns/accepts GATT kernel virtual address. */
+#define alloc_gatt_pages(order)         \
+        ((char *)__get_free_pages(GFP_KERNEL, (order)))
+#define free_gatt_pages(table, order)   \
+        free_pages((unsigned long)(table), (order))
+
 #endif /* _ASM_IA64_AGP_H */
diff --git a/include/asm-ia64/pgtable.h b/include/asm-ia64/pgtable.h
index ea121a002309..fcc9c3344ab4 100644
--- a/include/asm-ia64/pgtable.h
+++ b/include/asm-ia64/pgtable.h
@@ -8,7 +8,7 @@
  * This hopefully works with any (fixed) IA-64 page-size, as defined
  * in <asm/page.h>.
  *
- * Copyright (C) 1998-2004 Hewlett-Packard Co
+ * Copyright (C) 1998-2005 Hewlett-Packard Co
  *      David Mosberger-Tang <davidm@hpl.hp.com>
  */
 
@@ -551,7 +551,11 @@ do {											\
 
 /* These tell get_user_pages() that the first gate page is accessible from user-level.  */
 #define FIXADDR_USER_START      GATE_ADDR
-#define FIXADDR_USER_END        (GATE_ADDR + 2*PERCPU_PAGE_SIZE)
+#ifdef HAVE_BUGGY_SEGREL
+# define FIXADDR_USER_END       (GATE_ADDR + 2*PAGE_SIZE)
+#else
+# define FIXADDR_USER_END       (GATE_ADDR + 2*PERCPU_PAGE_SIZE)
+#endif
 
 #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
 #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY
diff --git a/include/asm-ia64/processor.h b/include/asm-ia64/processor.h
index 9e1ba8b7fb68..91bbd1f22461 100644
--- a/include/asm-ia64/processor.h
+++ b/include/asm-ia64/processor.h
@@ -403,7 +403,10 @@ extern void ia64_setreg_unknown_kr (void);
  * task_struct at this point.
  */
 
-/* Return TRUE if task T owns the fph partition of the CPU we're running on. */
+/*
+ * Return TRUE if task T owns the fph partition of the CPU we're running on.
+ * Must be called from code that has preemption disabled.
+ */
 #define ia64_is_local_fpu_owner(t)                                                              \
 ({                                                                                              \
         struct task_struct *__ia64_islfo_task = (t);                                            \
@@ -411,7 +414,10 @@ extern void ia64_setreg_unknown_kr (void);
          && __ia64_islfo_task == (struct task_struct *) ia64_get_kr(IA64_KR_FPU_OWNER));        \
 })
 
-/* Mark task T as owning the fph partition of the CPU we're running on. */
+/*
+ * Mark task T as owning the fph partition of the CPU we're running on.
+ * Must be called from code that has preemption disabled.
+ */
 #define ia64_set_local_fpu_owner(t) do {                                                \
         struct task_struct *__ia64_slfo_task = (t);                                     \
         __ia64_slfo_task->thread.last_fph_cpu = smp_processor_id();                     \