Index: linux-2.6.25-source/arch/x86/Kconfig
===================================================================
--- linux-2.6.25-source.orig/arch/x86/Kconfig
+++ linux-2.6.25-source/arch/x86/Kconfig
@@ -1433,6 +1433,9 @@
 	  direct access method and falls back to the BIOS if that doesn't
 	  work. If unsure, go with the default, which is "Any".
 
+config PCI_GOCO
+	bool "Cooperative"
+
 config PCI_GOBIOS
 	bool "BIOS"
 
@@ -1447,6 +1450,11 @@
 
 endchoice
 
+config PCI_COOPERATIVE
+	bool
+ 	depends on PCI && PCI_GOCO && COOPERATIVE
+	default y
+
 config PCI_BIOS
 	def_bool y
 	depends on X86_32 && !X86_VISWS && PCI && (PCI_GOBIOS || PCI_GOANY)
@@ -1504,6 +1512,7 @@
 
 # x86_64 have no ISA slots, but do have ISA-style DMA.
 config ISA_DMA_API
+	depends on !COOPERATIVE
 	def_bool y
 
 if X86_32
Index: linux-2.6.25-source/arch/x86/kernel/cpu/cyrix.c
===================================================================
--- linux-2.6.25-source.orig/arch/x86/kernel/cpu/cyrix.c
+++ linux-2.6.25-source/arch/x86/kernel/cpu/cyrix.c
@@ -248,6 +248,7 @@
 
 	case 4: /* MediaGX/GXm or Geode GXM/GXLV/GX1 */
 #ifdef CONFIG_PCI
+#ifndef CONFIG_COOPERATIVE
 	{
 		u32 vendor, device;
 		/* It isn't really a PCI quirk directly, but the cure is the
@@ -279,6 +280,7 @@
 			mark_tsc_unstable("cyrix 5510/5520 detected");
 	}
 #endif
+#endif
 		c->x86_cache_size=16;	/* Yep 16K integrated cache thats it */
 
 		/* GXm supports extended cpuid levels 'ala' AMD */
Index: linux-2.6.25-source/arch/x86/pci/init.c
===================================================================
--- linux-2.6.25-source.orig/arch/x86/pci/init.c
+++ linux-2.6.25-source/arch/x86/pci/init.c
@@ -8,6 +8,9 @@
 {
 	int type __maybe_unused = 0;
 
+#ifdef CONFIG_PCI_COOPERATIVE
+	pci_cooperative_init();
+#endif
 #ifdef CONFIG_PCI_DIRECT
 	type = pci_direct_probe();
 #endif
Index: linux-2.6.25-source/arch/x86/pci/pci.h
===================================================================
--- linux-2.6.25-source.orig/arch/x86/pci/pci.h
+++ linux-2.6.25-source/arch/x86/pci/pci.h
@@ -104,6 +104,7 @@
 extern void pci_pcbios_init(void);
 extern void pci_mmcfg_init(int type);
 extern void pcibios_sort(void);
+extern void pci_cooperative_init(void);
 
 /* pci-mmconfig.c */
 
Index: linux-2.6.25-source/arch/x86/pci/Makefile_32
===================================================================
--- linux-2.6.25-source.orig/arch/x86/pci/Makefile_32
+++ linux-2.6.25-source/arch/x86/pci/Makefile_32
@@ -1,5 +1,6 @@
 obj-y				:= i386.o init.o
 
+obj-$(CONFIG_PCI_COOPERATIVE)	+= copci.o
 obj-$(CONFIG_PCI_BIOS)		+= pcbios.o
 obj-$(CONFIG_PCI_MMCONFIG)	+= mmconfig_32.o direct.o mmconfig-shared.o
 obj-$(CONFIG_PCI_DIRECT)	+= direct.o
@@ -11,4 +12,8 @@
 pci-$(CONFIG_X86_VISWS)		:= visws.o fixup.o
 pci-$(CONFIG_X86_NUMAQ)		:= numa.o irq.o
 
-obj-y				+= $(pci-y) common.o early.o
+pci-$(CONFIG_COOPERATIVE)	:= legacy.o irq_cooperative.o
+obj-y				+= $(pci-y) common.o
+ifndef CONFIG_COOPERATIVE
+obj-y				+= early.o
+endif
Index: linux-2.6.25-source/drivers/pci/pci.c
===================================================================
--- linux-2.6.25-source.orig/drivers/pci/pci.c
+++ linux-2.6.25-source/drivers/pci/pci.c
@@ -1690,7 +1690,9 @@
 EXPORT_SYMBOL_GPL(pci_intx);
 EXPORT_SYMBOL(pci_set_dma_mask);
 EXPORT_SYMBOL(pci_set_consistent_dma_mask);
+#ifndef CONFIG_COOPERATIVE
 EXPORT_SYMBOL(pci_assign_resource);
+#endif
 EXPORT_SYMBOL(pci_find_parent_resource);
 EXPORT_SYMBOL(pci_select_bars);
 
Index: linux-2.6.25-source/include/asm-x86/pci.h
===================================================================
--- linux-2.6.25-source.orig/include/asm-x86/pci.h
+++ linux-2.6.25-source/include/asm-x86/pci.h
@@ -65,7 +65,7 @@
 			       enum pci_mmap_state mmap_state, int write_combine);
 
 
-#ifdef CONFIG_PCI
+#if defined(CONFIG_PCI) && !defined(CONFIG_COOPERATIVE)
 extern void early_quirks(void);
 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
 					enum pci_dma_burst_strategy *strat,