From e5d3c7f260d18168eec755c73f01ac617390d96c Mon Sep 17 00:00:00 2001
From: Michel Daenzer <michel@daenzer.net>
Date: Fri, 16 May 2003 23:41:27 +0000
Subject: Support AGP bridges where the AGP aperture can't be accessed directly
 by     the CPU (David Mosberger, Benjamin Herrenschmidt, myself, Paul    
 Mackerras, Jeff Wiedemeier)

---
 linux/Makefile.linux | 24 +++++++++++++++++++++---
 1 file changed, 21 insertions(+), 3 deletions(-)

(limited to 'linux/Makefile.linux')

diff --git a/linux/Makefile.linux b/linux/Makefile.linux
index af610c13..c3451399 100644
--- a/linux/Makefile.linux
+++ b/linux/Makefile.linux
@@ -264,18 +264,36 @@ CC += -I$(DRMSRCDIR)
 # Check for Red Hat's 4-argument do_munmap().
 DOMUNMAP := $(shell grep do_munmap $(LINUXDIR)/include/linux/mm.h | \
                 grep -c acct)
-# Check for 5-argument remap_page_range() in RH9 kernel, and 2.5.x kernels
-RPR := $(shell grep remap_page_range $(LINUXDIR)/include/linux/mm.h | \
-		grep -c vma)
 
 ifneq ($(DOMUNMAP),0)
 EXTRA_CFLAGS += -DDO_MUNMAP_4_ARGS
 endif
 
+# Check for 5-argument remap_page_range() in RH9 kernel, and 2.5.x kernels
+RPR := $(shell grep remap_page_range $(LINUXDIR)/include/linux/mm.h | \
+		grep -c vma)
+
 ifneq ($(RPR),0)
 EXTRA_CFLAGS += -DREMAP_PAGE_RANGE_5_ARGS
 endif
 
+# Check for 4-argument vmap() in some 2.5.x and 2.4.x kernels
+VMAP := $(shell grep -A1 'vmap.*count,$$' $(LINUXDIR)/include/linux/vmalloc.h | \
+		grep -c prot)
+
+ifneq ($(VMAP),0)
+EXTRA_CFLAGS += -DVMAP_4_ARGS
+endif
+
+# Check for PAGE_AGP definition
+PAGE_AGP := $(shell cat $(LINUXDIR)/include/asm/agp.h 2>/dev/null | \
+		grep -c PAGE_AGP)
+
+ifneq ($(PAGE_AGP),0)
+EXTRA_CFLAGS += -DHAVE_PAGE_AGP
+endif
+
+
 # Start with all modules turned off.
 CONFIG_DRM_GAMMA := n
 CONFIG_DRM_TDFX := n
-- 
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