Define global uma_memory variables

Use of the uma_memory_base and _size variables is very scattered.
Implementation of setup_uma_memory() will appear in each northbridge.

It should be possible to do this setup entirely in northbridge
code and get rid of the globals in a follow-up.

Change-Id: I07ccd98c55a6bcaa8294ad9704b88d7afb341456
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/1204
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>

src/northbridge/amd/agesa/family10/northbridge.c

@@ -908,10 +908,6 @@ static struct hw_mem_hole_info get_hw_mem_hole_info(void)
 }
 #endif
 
-#if CONFIG_GFXUMA
-extern uint64_t uma_memory_base, uma_memory_size;
-#endif
-
 static void amdfam10_domain_set_resources(device_t dev)
 {
 #if CONFIG_PCI_64BIT_PREF_MEM

src/northbridge/amd/agesa/family12/northbridge.c

@@ -338,10 +338,6 @@ static struct hw_mem_hole_info get_hw_mem_hole_info(void)
 }
 #endif
 
-#if CONFIG_GFXUMA
-extern uint64_t uma_memory_base, uma_memory_size;
-#endif
-
 static void read_resources(device_t dev)
 {
     u32 nodeid;

src/northbridge/amd/agesa/family14/northbridge.c

@@ -326,10 +326,6 @@ static struct hw_mem_hole_info get_hw_mem_hole_info(void)
 }
 #endif
 
-#if CONFIG_GFXUMA
-extern uint64_t uma_memory_base, uma_memory_size;
-#endif
-
 static void read_resources(device_t dev)
 {
 	u32 nodeid;

src/northbridge/amd/agesa/family15/northbridge.c

@@ -626,10 +626,6 @@ static struct hw_mem_hole_info get_hw_mem_hole_info(void)
 }
 #endif
 
-#if CONFIG_GFXUMA
-extern uint64_t uma_memory_base, uma_memory_size;
-#endif
-
 static void domain_set_resources(device_t dev)
 {
 #if CONFIG_PCI_64BIT_PREF_MEM

src/northbridge/amd/agesa/family15tn/northbridge.c

@@ -613,10 +613,6 @@ static struct hw_mem_hole_info get_hw_mem_hole_info(void)
 }
 #endif
 
-#if CONFIG_GFXUMA == 1
-extern uint64_t uma_memory_base, uma_memory_size;
-#endif
-
 static void domain_set_resources(device_t dev)
 {
 #if CONFIG_PCI_64BIT_PREF_MEM == 1

src/northbridge/amd/amdfam10/northbridge.c

@@ -847,10 +847,6 @@ static void disable_hoist_memory(unsigned long hole_startk, int node_id)
 #include <cbmem.h>
 #endif
 
-#if CONFIG_GFXUMA
-extern uint64_t uma_memory_base, uma_memory_size;
-#endif
-
 static void amdfam10_domain_set_resources(device_t dev)
 {
 #if CONFIG_PCI_64BIT_PREF_MEM

src/northbridge/amd/amdk8/northbridge.c

@@ -822,10 +822,6 @@ static u32 hoist_memory(unsigned long hole_startk, int node_id)
 #include <cbmem.h>
 #endif
 
-#if CONFIG_GFXUMA
-extern uint64_t uma_memory_base, uma_memory_size;
-#endif
-
 static void amdk8_domain_set_resources(device_t dev)
 {
 #if CONFIG_PCI_64BIT_PREF_MEM

src/northbridge/intel/i82810/northbridge.c

@@ -62,9 +62,6 @@ static const struct pci_driver i810e_northbridge_driver __pci_driver = {
 	.device = 0x7124,
 };
 
-/* IGD UMA memory */
-uint64_t uma_memory_base=0, uma_memory_size=0;
-
 int add_northbridge_resources(struct lb_memory *mem)
 {
 	printk(BIOS_DEBUG, "Adding IGD UMA memory area\n");

src/northbridge/intel/i82830/northbridge.c

@@ -52,9 +52,6 @@ static const struct pci_driver northbridge_driver __pci_driver = {
 	.device = 0x3575,
 };
 
-/* IGD memory */
-uint64_t uma_memory_base=0, uma_memory_size=0;
-
 int add_northbridge_resources(struct lb_memory *mem)
 {
 	printk(BIOS_DEBUG, "Adding IGD UMA memory area\n");

src/northbridge/intel/i945/northbridge.c

@@ -68,9 +68,6 @@ static int get_pcie_bar(u32 *base, u32 *len)
 	return 0;
 }
 
-/* IDG memory */
-uint64_t uma_memory_base=0, uma_memory_size=0;
-
 static void add_fixed_resources(struct device *dev, int index)
 {
 	struct resource *resource;

src/northbridge/intel/sandybridge/northbridge.c

@@ -118,9 +118,6 @@ static int get_pcie_bar(u32 *base, u32 *len)
 	return 0;
 }
 
-/* IDG memory */
-uint64_t uma_memory_base=0, uma_memory_size=0;
-
 static void add_fixed_resources(struct device *dev, int index)
 {
 	struct resource *resource;

src/northbridge/intel/sch/northbridge.c

@@ -73,9 +73,6 @@ static int get_pcie_bar(u32 *base, u32 *len)
 	return 0;
 }
 
-/* IDG memory */
-u64 uma_memory_base = 0, uma_memory_size = 0;
-
 static void add_fixed_resources(struct device *dev, int index)
 {
 	struct resource *resource;