Move setup_uma_memory() to AMDFAM10 northbridge

Following boards had identical code:
  advansus/a785e-i
  amd/bimini_fam10
  amd/mahogany_fam10
  asus/m5a88-v
  avalue/eax-785e
  gigabyte/ma78gm
  iei/kino-780am2-fam10
  jetway/pa78vm5

Following boards had identical code:
  amd/tilapia_fam10
  asus/m4a78-em
  asus/m4a785-m
  gigabyte/ma785gm
  gigabyte/ma785gmt

In between the two, only whitespace difference.

Change-Id: Iaa48cc7b0038ebcc81be49219b4fc87670aa9941
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/1209
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>

14 files changed, 57 insertions, 502 deletions

diff --git a/src/mainboard/advansus/a785e-i/mainboard.c b/src/mainboard/advansus/a785e-i/mainboard.c
index 3504ac22de0c..1c1b164fb465 100644
--- a/src/mainboard/advansus/a785e-i/mainboard.c
+++ b/src/mainboard/advansus/a785e-i/mainboard.c
@@ -83,45 +83,7 @@ static void a785e_i_enable(device_t dev)
 
 	printk(BIOS_INFO, "Mainboard A785E-I Enable. dev=0x%p\n", dev);
 
-#if CONFIG_GFXUMA
-	msr_t msr, msr2;
-
-	/* TOP_MEM: the top of DRAM below 4G */
-	msr = rdmsr(TOP_MEM);
-	printk
-	    (BIOS_INFO, "%s, TOP MEM: msr.lo = 0x%08x, msr.hi = 0x%08x\n",
-	     __func__, msr.lo, msr.hi);
-
-	/* TOP_MEM2: the top of DRAM above 4G */
-	msr2 = rdmsr(TOP_MEM2);
-	printk
-	    (BIOS_INFO, "%s, TOP MEM2: msr2.lo = 0x%08x, msr2.hi = 0x%08x\n",
-	     __func__, msr2.lo, msr2.hi);
-
-	/* refer to UMA Size Consideration in 780 BDG. */
-	switch (msr.lo) {
-	case 0x10000000:	/* 256M system memory */
-		uma_memory_size = 0x4000000;	/* 64M recommended UMA */
-		break;
-
-	case 0x20000000:	/* 512M system memory */
-		uma_memory_size = 0x8000000;	/* 128M recommended UMA */
-		break;
-
-	default:		/* 1GB and above system memory */
-		uma_memory_size = 0x10000000;	/* 256M recommended UMA */
-		break;
-	}
-
-	uma_memory_base = msr.lo - uma_memory_size;	/* TOP_MEM1 */
-	printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n",
-		    __func__, uma_memory_size, uma_memory_base);
-
-	/* TODO: TOP_MEM2 */
-#else
-	uma_memory_size = 0x8000000;	/* 128M recommended UMA */
-	uma_memory_base = 0x38000000;	/* 1GB  system memory supposed */
-#endif
+	setup_uma_memory();
 
 	set_pcie_dereset();
 	enable_int_gfx();
diff --git a/src/mainboard/amd/bimini_fam10/mainboard.c b/src/mainboard/amd/bimini_fam10/mainboard.c
index 4d685e2f02f5..1be3c754ed95 100644
--- a/src/mainboard/amd/bimini_fam10/mainboard.c
+++ b/src/mainboard/amd/bimini_fam10/mainboard.c
@@ -133,45 +133,7 @@ static void bimini_enable(device_t dev)
 
 	printk(BIOS_INFO, "Mainboard BIMINI Enable. dev=0x%p\n", dev);
 
-#if CONFIG_GFXUMA
-	msr_t msr, msr2;
-
-	/* TOP_MEM: the top of DRAM below 4G */
-	msr = rdmsr(TOP_MEM);
-	printk
-	    (BIOS_INFO, "%s, TOP MEM: msr.lo = 0x%08x, msr.hi = 0x%08x\n",
-	     __func__, msr.lo, msr.hi);
-
-	/* TOP_MEM2: the top of DRAM above 4G */
-	msr2 = rdmsr(TOP_MEM2);
-	printk
-	    (BIOS_INFO, "%s, TOP MEM2: msr2.lo = 0x%08x, msr2.hi = 0x%08x\n",
-	     __func__, msr2.lo, msr2.hi);
-
-	/* refer to UMA Size Consideration in 780 BDG. */
-	switch (msr.lo) {
-	case 0x10000000:	/* 256M system memory */
-		uma_memory_size = 0x4000000;	/* 64M recommended UMA */
-		break;
-
-	case 0x20000000:	/* 512M system memory */
-		uma_memory_size = 0x8000000;	/* 128M recommended UMA */
-		break;
-
-	default:		/* 1GB and above system memory */
-		uma_memory_size = 0x10000000;	/* 256M recommended UMA */
-		break;
-	}
-
-	uma_memory_base = msr.lo - uma_memory_size;	/* TOP_MEM1 */
-	printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n",
-		    __func__, uma_memory_size, uma_memory_base);
-
-	/* TODO: TOP_MEM2 */
-#else
-	uma_memory_size = 0x8000000;	/* 128M recommended UMA */
-	uma_memory_base = 0x38000000;	/* 1GB  system memory supposed */
-#endif
+	setup_uma_memory();
 
 	set_pcie_dereset();
 	enable_int_gfx();
diff --git a/src/mainboard/amd/mahogany_fam10/mainboard.c b/src/mainboard/amd/mahogany_fam10/mainboard.c
index 16dff473ea96..c25581d3779e 100644
--- a/src/mainboard/amd/mahogany_fam10/mainboard.c
+++ b/src/mainboard/amd/mahogany_fam10/mainboard.c
@@ -104,45 +104,7 @@ static void mahogany_enable(device_t dev)
 {
 	printk(BIOS_INFO, "Mainboard MAHOGANY Enable. dev=0x%p\n", dev);
 
-#if CONFIG_GFXUMA
-	msr_t msr, msr2;
-
-	/* TOP_MEM: the top of DRAM below 4G */
-	msr = rdmsr(TOP_MEM);
-	printk
-	    (BIOS_INFO, "%s, TOP MEM: msr.lo = 0x%08x, msr.hi = 0x%08x\n",
-	     __func__, msr.lo, msr.hi);
-
-	/* TOP_MEM2: the top of DRAM above 4G */
-	msr2 = rdmsr(TOP_MEM2);
-	printk
-	    (BIOS_INFO, "%s, TOP MEM2: msr2.lo = 0x%08x, msr2.hi = 0x%08x\n",
-	     __func__, msr2.lo, msr2.hi);
-
-	/* refer to UMA Size Consideration in 780 BDG. */
-	switch (msr.lo) {
-	case 0x10000000:	/* 256M system memory */
-		uma_memory_size = 0x4000000;	/* 64M recommended UMA */
-		break;
-
-	case 0x20000000:	/* 512M system memory */
-		uma_memory_size = 0x8000000;	/* 128M recommended UMA */
-		break;
-
-	default:		/* 1GB and above system memory */
-		uma_memory_size = 0x10000000;	/* 256M recommended UMA */
-		break;
-	}
-
-	uma_memory_base = msr.lo - uma_memory_size;	/* TOP_MEM1 */
-	printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n",
-		    __func__, uma_memory_size, uma_memory_base);
-
-	/* TODO: TOP_MEM2 */
-#else
-	uma_memory_size = 0x8000000;	/* 128M recommended UMA */
-	uma_memory_base = 0x38000000;	/* 1GB  system memory supposed */
-#endif
+	setup_uma_memory();
 
 	set_pcie_dereset();
 	/* get_ide_dma66(); */
diff --git a/src/mainboard/amd/tilapia_fam10/mainboard.c b/src/mainboard/amd/tilapia_fam10/mainboard.c
index 1777c2b15e15..9c845fa4e8ee 100644
--- a/src/mainboard/amd/tilapia_fam10/mainboard.c
+++ b/src/mainboard/amd/tilapia_fam10/mainboard.c
@@ -279,44 +279,7 @@ static void tilapia_enable(device_t dev)
 {
 	printk(BIOS_INFO, "Mainboard TILAPIA Enable. dev=0x%p\n", dev);
 
-#if CONFIG_GFXUMA
-	msr_t msr, msr2;
-
-	/* TOP_MEM: the top of DRAM below 4G */
-	msr = rdmsr(TOP_MEM);
-	printk(BIOS_INFO,
-	    "%s, TOP MEM: msr.lo = 0x%08x, msr.hi = 0x%08x\n",
-	     __func__, msr.lo, msr.hi);
-
-	/* TOP_MEM2: the top of DRAM above 4G */
-	msr2 = rdmsr(TOP_MEM2);
-	printk(BIOS_INFO,
-	    "%s, TOP MEM2: msr2.lo = 0x%08x, msr2.hi = 0x%08x\n",
-	     __func__, msr2.lo, msr2.hi);
-
-	switch (msr.lo) {
-	case 0x10000000:	/* 256M system memory */
-		uma_memory_size = 0x4000000;	/* 64M recommended UMA */
-		break;
-
-	case 0x20000000:	/* 512M system memory */
-		uma_memory_size = 0x8000000;	/* 128M recommended UMA */
-		break;
-
-	default:		/* 1GB and above system memory */
-		uma_memory_size = 0x10000000;	/* 256M recommended UMA */
-		break;
-	}
-
-	uma_memory_base = msr.lo - uma_memory_size;	/* TOP_MEM1 */
-	printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n",
-		    __func__, uma_memory_size, uma_memory_base);
-
-	/* TODO: TOP_MEM2 */
-#else
-	uma_memory_size = 0x8000000;	/* 128M recommended UMA */
-	uma_memory_base = 0x38000000;	/* 1GB  system memory supposed */
-#endif
+	setup_uma_memory();
 
 	set_pcie_dereset();
 	/* get_ide_dma66(); */
diff --git a/src/mainboard/asus/m4a78-em/mainboard.c b/src/mainboard/asus/m4a78-em/mainboard.c
index 2b4e97cae1ab..6b87177dbaa5 100644
--- a/src/mainboard/asus/m4a78-em/mainboard.c
+++ b/src/mainboard/asus/m4a78-em/mainboard.c
@@ -123,44 +123,7 @@ static void m4a78em_enable(device_t dev)
 {
 	printk(BIOS_INFO, "Mainboard enable. dev=0x%p\n", dev);
 
-#if CONFIG_GFXUMA
-	msr_t msr, msr2;
-
-	/* TOP_MEM: the top of DRAM below 4G */
-	msr = rdmsr(TOP_MEM);
-	printk(BIOS_INFO,
-	    "%s, TOP MEM: msr.lo = 0x%08x, msr.hi = 0x%08x\n",
-	     __func__, msr.lo, msr.hi);
-
-	/* TOP_MEM2: the top of DRAM above 4G */
-	msr2 = rdmsr(TOP_MEM2);
-	printk(BIOS_INFO,
-	    "%s, TOP MEM2: msr2.lo = 0x%08x, msr2.hi = 0x%08x\n",
-	     __func__, msr2.lo, msr2.hi);
-
-	switch (msr.lo) {
-	case 0x10000000:	/* 256M system memory */
-		uma_memory_size = 0x4000000;	/* 64M recommended UMA */
-		break;
-
-	case 0x20000000:	/* 512M system memory */
-		uma_memory_size = 0x8000000;	/* 128M recommended UMA */
-		break;
-
-	default:		/* 1GB and above system memory */
-		uma_memory_size = 0x10000000;	/* 256M recommended UMA */
-		break;
-	}
-
-	uma_memory_base = msr.lo - uma_memory_size;	/* TOP_MEM1 */
-	printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n",
-		    __func__, uma_memory_size, uma_memory_base);
-
-	/* TODO: TOP_MEM2 */
-#else
-	uma_memory_size = 0x8000000;	/* 128M recommended UMA */
-	uma_memory_base = 0x38000000;	/* 1GB  system memory supposed */
-#endif
+	setup_uma_memory();
 
 	set_pcie_dereset();
 	/* get_ide_dma66(); */
diff --git a/src/mainboard/asus/m4a785-m/mainboard.c b/src/mainboard/asus/m4a785-m/mainboard.c
index 36933006c1ca..1bfeda5452e2 100644
--- a/src/mainboard/asus/m4a785-m/mainboard.c
+++ b/src/mainboard/asus/m4a785-m/mainboard.c
@@ -195,44 +195,7 @@ static void m4a785m_enable(device_t dev)
 {
 	printk(BIOS_INFO, "Mainboard enable. dev=0x%p\n", dev);
 
-#if CONFIG_GFXUMA
-	msr_t msr, msr2;
-
-	/* TOP_MEM: the top of DRAM below 4G */
-	msr = rdmsr(TOP_MEM);
-	printk(BIOS_INFO,
-	    "%s, TOP MEM: msr.lo = 0x%08x, msr.hi = 0x%08x\n",
-	     __func__, msr.lo, msr.hi);
-
-	/* TOP_MEM2: the top of DRAM above 4G */
-	msr2 = rdmsr(TOP_MEM2);
-	printk(BIOS_INFO,
-	    "%s, TOP MEM2: msr2.lo = 0x%08x, msr2.hi = 0x%08x\n",
-	     __func__, msr2.lo, msr2.hi);
-
-	switch (msr.lo) {
-	case 0x10000000:	/* 256M system memory */
-		uma_memory_size = 0x4000000;	/* 64M recommended UMA */
-		break;
-
-	case 0x20000000:	/* 512M system memory */
-		uma_memory_size = 0x8000000;	/* 128M recommended UMA */
-		break;
-
-	default:		/* 1GB and above system memory */
-		uma_memory_size = 0x10000000;	/* 256M recommended UMA */
-		break;
-	}
-
-	uma_memory_base = msr.lo - uma_memory_size;	/* TOP_MEM1 */
-	printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n",
-		    __func__, uma_memory_size, uma_memory_base);
-
-	/* TODO: TOP_MEM2 */
-#else
-	uma_memory_size = 0x8000000;	/* 128M recommended UMA */
-	uma_memory_base = 0x38000000;	/* 1GB  system memory supposed */
-#endif
+	setup_uma_memory();
 
 	set_pcie_dereset();
 	/* get_ide_dma66(); */
diff --git a/src/mainboard/asus/m5a88-v/mainboard.c b/src/mainboard/asus/m5a88-v/mainboard.c
index 291510cbe06a..008c2f9d658b 100644
--- a/src/mainboard/asus/m5a88-v/mainboard.c
+++ b/src/mainboard/asus/m5a88-v/mainboard.c
@@ -80,45 +80,7 @@ static void m5a88pm_v_enable(device_t dev)
 
 	printk(BIOS_INFO, "Mainboard ASUS M5A88-V Enable. dev=0x%p\n", dev);
 
-#if CONFIG_GFXUMA
-	msr_t msr, msr2;
-
-	/* TOP_MEM: the top of DRAM below 4G */
-	msr = rdmsr(TOP_MEM);
-	printk
-	    (BIOS_INFO, "%s, TOP MEM: msr.lo = 0x%08x, msr.hi = 0x%08x\n",
-	     __func__, msr.lo, msr.hi);
-
-	/* TOP_MEM2: the top of DRAM above 4G */
-	msr2 = rdmsr(TOP_MEM2);
-	printk
-	    (BIOS_INFO, "%s, TOP MEM2: msr2.lo = 0x%08x, msr2.hi = 0x%08x\n",
-	     __func__, msr2.lo, msr2.hi);
-
-	/* refer to UMA Size Consideration in 780 BDG. */
-	switch (msr.lo) {
-	case 0x10000000:	/* 256M system memory */
-		uma_memory_size = 0x4000000;	/* 64M recommended UMA */
-		break;
-
-	case 0x20000000:	/* 512M system memory */
-		uma_memory_size = 0x8000000;	/* 128M recommended UMA */
-		break;
-
-	default:		/* 1GB and above system memory */
-		uma_memory_size = 0x10000000;	/* 256M recommended UMA */
-		break;
-	}
-
-	uma_memory_base = msr.lo - uma_memory_size;	/* TOP_MEM1 */
-	printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n",
-		    __func__, uma_memory_size, uma_memory_base);
-
-	/* TODO: TOP_MEM2 */
-#else
-	uma_memory_size = 0x8000000;	/* 128M recommended UMA */
-	uma_memory_base = 0x38000000;	/* 1GB  system memory supposed */
-#endif
+	setup_uma_memory();
 
 	set_pcie_dereset();
 	enable_int_gfx();
diff --git a/src/mainboard/avalue/eax-785e/mainboard.c b/src/mainboard/avalue/eax-785e/mainboard.c
index 89a0e962522d..f54734201993 100644
--- a/src/mainboard/avalue/eax-785e/mainboard.c
+++ b/src/mainboard/avalue/eax-785e/mainboard.c
@@ -83,45 +83,7 @@ static void eax_785e(device_t dev)
 
 	printk(BIOS_INFO, "Mainboard " CONFIG_MAINBOARD_PART_NUMBER " Enable.\n");
 
-#if CONFIG_GFXUMA
-	msr_t msr, msr2;
-
-	/* TOP_MEM: the top of DRAM below 4G */
-	msr = rdmsr(TOP_MEM);
-	printk
-	    (BIOS_INFO, "%s, TOP MEM: msr.lo = 0x%08x, msr.hi = 0x%08x\n",
-	     __func__, msr.lo, msr.hi);
-
-	/* TOP_MEM2: the top of DRAM above 4G */
-	msr2 = rdmsr(TOP_MEM2);
-	printk
-	    (BIOS_INFO, "%s, TOP MEM2: msr2.lo = 0x%08x, msr2.hi = 0x%08x\n",
-	     __func__, msr2.lo, msr2.hi);
-
-	/* refer to UMA Size Consideration in 780 BDG. */
-	switch (msr.lo) {
-	case 0x10000000:	/* 256M system memory */
-		uma_memory_size = 0x4000000;	/* 64M recommended UMA */
-		break;
-
-	case 0x20000000:	/* 512M system memory */
-		uma_memory_size = 0x8000000;	/* 128M recommended UMA */
-		break;
-
-	default:		/* 1GB and above system memory */
-		uma_memory_size = 0x10000000;	/* 256M recommended UMA */
-		break;
-	}
-
-	uma_memory_base = msr.lo - uma_memory_size;	/* TOP_MEM1 */
-	printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n",
-		    __func__, uma_memory_size, uma_memory_base);
-
-	/* TODO: TOP_MEM2 */
-#else
-	uma_memory_size = 0x8000000;	/* 128M recommended UMA */
-	uma_memory_base = 0x38000000;	/* 1GB  system memory supposed */
-#endif
+	setup_uma_memory();
 
 	set_pcie_dereset();
 	enable_int_gfx();
diff --git a/src/mainboard/gigabyte/ma785gm/mainboard.c b/src/mainboard/gigabyte/ma785gm/mainboard.c
index ea3f27ee5083..ced5a2168a87 100644
--- a/src/mainboard/gigabyte/ma785gm/mainboard.c
+++ b/src/mainboard/gigabyte/ma785gm/mainboard.c
@@ -140,44 +140,7 @@ static void ma785gm_enable(device_t dev)
 {
 	printk(BIOS_INFO, "Mainboard MA785GM-US2H Enable. dev=0x%p\n", dev);
 
-#if CONFIG_GFXUMA
-	msr_t msr, msr2;
-
-	/* TOP_MEM: the top of DRAM below 4G */
-	msr = rdmsr(TOP_MEM);
-	printk(BIOS_INFO,
-	    "%s, TOP MEM: msr.lo = 0x%08x, msr.hi = 0x%08x\n",
-	     __func__, msr.lo, msr.hi);
-
-	/* TOP_MEM2: the top of DRAM above 4G */
-	msr2 = rdmsr(TOP_MEM2);
-	printk(BIOS_INFO,
-	    "%s, TOP MEM2: msr2.lo = 0x%08x, msr2.hi = 0x%08x\n",
-	     __func__, msr2.lo, msr2.hi);
-
-	switch (msr.lo) {
-	case 0x10000000:	/* 256M system memory */
-		uma_memory_size = 0x4000000;	/* 64M recommended UMA */
-		break;
-
-	case 0x20000000:	/* 512M system memory */
-		uma_memory_size = 0x8000000;	/* 128M recommended UMA */
-		break;
-
-	default:		/* 1GB and above system memory */
-		uma_memory_size = 0x10000000;	/* 256M recommended UMA */
-		break;
-	}
-
-	uma_memory_base = msr.lo - uma_memory_size;	/* TOP_MEM1 */
-	printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n",
-		    __func__, uma_memory_size, uma_memory_base);
-
-	/* TODO: TOP_MEM2 */
-#else
-	uma_memory_size = 0x8000000;	/* 128M recommended UMA */
-	uma_memory_base = 0x38000000;	/* 1GB  system memory supposed */
-#endif
+	setup_uma_memory();
 
 	set_pcie_dereset();
 	/* get_ide_dma66(); */
diff --git a/src/mainboard/gigabyte/ma785gmt/mainboard.c b/src/mainboard/gigabyte/ma785gmt/mainboard.c
index 174c08de845b..ab99c08690c5 100644
--- a/src/mainboard/gigabyte/ma785gmt/mainboard.c
+++ b/src/mainboard/gigabyte/ma785gmt/mainboard.c
@@ -250,44 +250,7 @@ static void ma785gmt_enable(device_t dev)
 {
 	printk(BIOS_INFO, "Mainboard MA785GMT-UD2H Enable. dev=0x%p\n", dev);
 
-#if CONFIG_GFXUMA
-	msr_t msr, msr2;
-
-	/* TOP_MEM: the top of DRAM below 4G */
-	msr = rdmsr(TOP_MEM);
-	printk(BIOS_INFO,
-	    "%s, TOP MEM: msr.lo = 0x%08x, msr.hi = 0x%08x\n",
-	     __func__, msr.lo, msr.hi);
-
-	/* TOP_MEM2: the top of DRAM above 4G */
-	msr2 = rdmsr(TOP_MEM2);
-	printk(BIOS_INFO,
-	    "%s, TOP MEM2: msr2.lo = 0x%08x, msr2.hi = 0x%08x\n",
-	     __func__, msr2.lo, msr2.hi);
-
-	switch (msr.lo) {
-	case 0x10000000:	/* 256M system memory */
-		uma_memory_size = 0x4000000;	/* 64M recommended UMA */
-		break;
-
-	case 0x20000000:	/* 512M system memory */
-		uma_memory_size = 0x8000000;	/* 128M recommended UMA */
-		break;
-
-	default:		/* 1GB and above system memory */
-		uma_memory_size = 0x10000000;	/* 256M recommended UMA */
-		break;
-	}
-
-	uma_memory_base = msr.lo - uma_memory_size;	/* TOP_MEM1 */
-	printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n",
-		    __func__, uma_memory_size, uma_memory_base);
-
-	/* TODO: TOP_MEM2 */
-#else
-	uma_memory_size = 0x8000000;	/* 128M recommended UMA */
-	uma_memory_base = 0x38000000;	/* 1GB  system memory supposed */
-#endif
+	setup_uma_memory();
 
 	set_pcie_dereset();
 	/* get_ide_dma66(); */
diff --git a/src/mainboard/gigabyte/ma78gm/mainboard.c b/src/mainboard/gigabyte/ma78gm/mainboard.c
index b81ebaa0eef7..3aec9076fe77 100644
--- a/src/mainboard/gigabyte/ma78gm/mainboard.c
+++ b/src/mainboard/gigabyte/ma78gm/mainboard.c
@@ -77,45 +77,7 @@ static void ma78gm_enable(device_t dev)
 {
 	printk(BIOS_INFO, "Mainboard MA78GM-US2H Enable. dev=0x%p\n", dev);
 
-#if CONFIG_GFXUMA
-	msr_t msr, msr2;
-
-	/* TOP_MEM: the top of DRAM below 4G */
-	msr = rdmsr(TOP_MEM);
-	printk
-	    (BIOS_INFO, "%s, TOP MEM: msr.lo = 0x%08x, msr.hi = 0x%08x\n",
-	     __func__, msr.lo, msr.hi);
-
-	/* TOP_MEM2: the top of DRAM above 4G */
-	msr2 = rdmsr(TOP_MEM2);
-	printk
-	    (BIOS_INFO, "%s, TOP MEM2: msr2.lo = 0x%08x, msr2.hi = 0x%08x\n",
-	     __func__, msr2.lo, msr2.hi);
-
-	/* refer to UMA Size Consideration in 780 BDG. */
-	switch (msr.lo) {
-	case 0x10000000:	/* 256M system memory */
-		uma_memory_size = 0x4000000;	/* 64M recommended UMA */
-		break;
-
-	case 0x20000000:	/* 512M system memory */
-		uma_memory_size = 0x8000000;	/* 128M recommended UMA */
-		break;
-
-	default:		/* 1GB and above system memory */
-		uma_memory_size = 0x10000000;	/* 256M recommended UMA */
-		break;
-	}
-
-	uma_memory_base = msr.lo - uma_memory_size;	/* TOP_MEM1 */
-	printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n",
-		    __func__, uma_memory_size, uma_memory_base);
-
-	/* TODO: TOP_MEM2 */
-#else
-	uma_memory_size = 0x8000000;	/* 128M recommended UMA */
-	uma_memory_base = 0x38000000;	/* 1GB  system memory supposed */
-#endif
+	setup_uma_memory();
 
 	set_pcie_dereset();
 	/* get_ide_dma66(); */
diff --git a/src/mainboard/iei/kino-780am2-fam10/mainboard.c b/src/mainboard/iei/kino-780am2-fam10/mainboard.c
index 6d20523abff3..3f0e9b15690f 100644
--- a/src/mainboard/iei/kino-780am2-fam10/mainboard.c
+++ b/src/mainboard/iei/kino-780am2-fam10/mainboard.c
@@ -59,45 +59,7 @@ static void kino_enable(device_t dev)
 {
 	printk(BIOS_INFO, "Mainboard Kino Enable. dev=0x%p\n", dev);
 
-#if CONFIG_GFXUMA
-	msr_t msr, msr2;
-
-	/* TOP_MEM: the top of DRAM below 4G */
-	msr = rdmsr(TOP_MEM);
-	printk
-	    (BIOS_INFO, "%s, TOP MEM: msr.lo = 0x%08x, msr.hi = 0x%08x\n",
-	     __func__, msr.lo, msr.hi);
-
-	/* TOP_MEM2: the top of DRAM above 4G */
-	msr2 = rdmsr(TOP_MEM2);
-	printk
-	    (BIOS_INFO, "%s, TOP MEM2: msr2.lo = 0x%08x, msr2.hi = 0x%08x\n",
-	     __func__, msr2.lo, msr2.hi);
-
-	/* refer to UMA Size Consideration in 780 BDG. */
-	switch (msr.lo) {
-	case 0x10000000:	/* 256M system memory */
-		uma_memory_size = 0x4000000;	/* 64M recommended UMA */
-		break;
-
-	case 0x20000000:	/* 512M system memory */
-		uma_memory_size = 0x8000000;	/* 128M recommended UMA */
-		break;
-
-	default:		/* 1GB and above system memory */
-		uma_memory_size = 0x10000000;	/* 256M recommended UMA */
-		break;
-	}
-
-	uma_memory_base = msr.lo - uma_memory_size;	/* TOP_MEM1 */
-	printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n",
-		    __func__, uma_memory_size, uma_memory_base);
-
-	/* TODO: TOP_MEM2 */
-#else
-	uma_memory_size = 0x8000000;	/* 128M recommended UMA */
-	uma_memory_base = 0x38000000;	/* 1GB  system memory supposed */
-#endif
+	setup_uma_memory();
 
 	set_pcie_dereset();
 	/* get_ide_dma66(); */
diff --git a/src/mainboard/jetway/pa78vm5/mainboard.c b/src/mainboard/jetway/pa78vm5/mainboard.c
index 329b4f6c25c2..019b5e33fa4b 100644
--- a/src/mainboard/jetway/pa78vm5/mainboard.c
+++ b/src/mainboard/jetway/pa78vm5/mainboard.c
@@ -106,45 +106,7 @@ static void pa78vm5_enable(device_t dev)
 {
 	printk(BIOS_INFO, "Mainboard PA78VM5 Enable. dev=0x%p\n", dev);
 
-#if CONFIG_GFXUMA
-	msr_t msr, msr2;
-
-	/* TOP_MEM: the top of DRAM below 4G */
-	msr = rdmsr(TOP_MEM);
-	printk
-	    (BIOS_INFO, "%s, TOP MEM: msr.lo = 0x%08x, msr.hi = 0x%08x\n",
-	     __func__, msr.lo, msr.hi);
-
-	/* TOP_MEM2: the top of DRAM above 4G */
-	msr2 = rdmsr(TOP_MEM2);
-	printk
-	    (BIOS_INFO, "%s, TOP MEM2: msr2.lo = 0x%08x, msr2.hi = 0x%08x\n",
-	     __func__, msr2.lo, msr2.hi);
-
-	/* refer to UMA Size Consideration in 780 BDG. */
-	switch (msr.lo) {
-	case 0x10000000:	/* 256M system memory */
-		uma_memory_size = 0x4000000;	/* 64M recommended UMA */
-		break;
-
-	case 0x20000000:	/* 512M system memory */
-		uma_memory_size = 0x8000000;	/* 128M recommended UMA */
-		break;
-
-	default:		/* 1GB and above system memory */
-		uma_memory_size = 0x10000000;	/* 256M recommended UMA */
-		break;
-	}
-
-	uma_memory_base = msr.lo - uma_memory_size;	/* TOP_MEM1 */
-	printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n",
-		    __func__, uma_memory_size, uma_memory_base);
-
-	/* TODO: TOP_MEM2 */
-#else
-	uma_memory_size = 0x8000000;	/* 128M recommended UMA */
-	uma_memory_base = 0x38000000;	/* 1GB  system memory supposed */
-#endif
+	setup_uma_memory();
 
 	set_pcie_dereset();
 	/* get_ide_dma66(); */
diff --git a/src/northbridge/amd/amdfam10/northbridge.c b/src/northbridge/amd/amdfam10/northbridge.c
index 41434e8fe572..2c9b6a22c456 100644
--- a/src/northbridge/amd/amdfam10/northbridge.c
+++ b/src/northbridge/amd/amdfam10/northbridge.c
@@ -30,6 +30,7 @@
 #include <cpu/cpu.h>
 
 #include <cpu/x86/lapic.h>
+#include <cpu/amd/mtrr.h>
 
 #if CONFIG_LOGICAL_CPUS
 #include <cpu/amd/multicore.h>
@@ -847,6 +848,49 @@ static void disable_hoist_memory(unsigned long hole_startk, int node_id)
 #include <cbmem.h>
 #endif
 
+void setup_uma_memory(void)
+{
+#if CONFIG_GFXUMA
+	msr_t msr, msr2;
+
+	/* TOP_MEM: the top of DRAM below 4G */
+	msr = rdmsr(TOP_MEM);
+	printk(BIOS_INFO,
+	    "%s, TOP MEM: msr.lo = 0x%08x, msr.hi = 0x%08x\n",
+	     __func__, msr.lo, msr.hi);
+
+	/* TOP_MEM2: the top of DRAM above 4G */
+	msr2 = rdmsr(TOP_MEM2);
+	printk(BIOS_INFO,
+	    "%s, TOP MEM2: msr.lo = 0x%08x, msr.hi = 0x%08x\n",
+	     __func__, msr2.lo, msr2.hi);
+
+	/* refer to UMA Size Consideration in 780 BDG. */
+	switch (msr.lo) {
+	case 0x10000000:	/* 256M system memory */
+		uma_memory_size = 0x4000000;	/* 64M recommended UMA */
+		break;
+
+	case 0x20000000:	/* 512M system memory */
+		uma_memory_size = 0x8000000;	/* 128M recommended UMA */
+		break;
+
+	default:		/* 1GB and above system memory */
+		uma_memory_size = 0x10000000;	/* 256M recommended UMA */
+		break;
+	}
+
+	uma_memory_base = msr.lo - uma_memory_size;	/* TOP_MEM1 */
+	printk(BIOS_INFO, "%s: uma size 0x%08llx, memory start 0x%08llx\n",
+		    __func__, uma_memory_size, uma_memory_base);
+
+	/* TODO: TOP_MEM2 */
+#else
+	uma_memory_size = 0x8000000;	/* 128M recommended UMA */
+	uma_memory_base = 0x38000000;	/* 1GB  system memory supposed */
+#endif
+}
+
 static void amdfam10_domain_set_resources(device_t dev)
 {
 #if CONFIG_PCI_64BIT_PREF_MEM