cpu/amd: Move model_10xxx to family_10h-family_15h

Change-Id: I34501d3fc68b71db7781dad11d5b883868932a60
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: http://review.coreboot.org/11965
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>

1 files changed, 50 insertions, 0 deletions

diff --git a/src/cpu/amd/family_10h-family_15h/ram_calc.c b/src/cpu/amd/family_10h-family_15h/ram_calc.c
new file mode 100644
index 0000000000..9ac2c993f8
--- /dev/null
+++ b/src/cpu/amd/family_10h-family_15h/ram_calc.c
@@ -0,0 +1,50 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering
+ * Copyright (C) 2007 Advanced Micro Devices, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <cpu/cpu.h>
+#include <cpu/x86/msr.h>
+#include <cpu/amd/mtrr.h>
+
+#include <cbmem.h>
+
+#include "ram_calc.h"
+
+#if !IS_ENABLED(CONFIG_LATE_CBMEM_INIT)
+uint64_t get_uma_memory_size(uint64_t topmem)
+{
+	uint64_t uma_size = 0;
+	if (IS_ENABLED(CONFIG_GFXUMA)) {
+		/* refer to UMA Size Consideration in 780 BDG. */
+		if (topmem >= 0x40000000)	/* 1GB and above system memory */
+			uma_size = 0x10000000;	/* 256M recommended UMA */
+
+		else if (topmem >= 0x20000000)	/* 512M - 1023M system memory */
+			uma_size = 0x8000000;	/* 128M recommended UMA */
+
+		else if (topmem >= 0x10000000)	/* 256M - 511M system memory */
+			uma_size = 0x4000000;	/* 64M recommended UMA */
+	}
+
+	return uma_size;
+}
+
+void *cbmem_top(void)
+{
+	uint32_t topmem = rdmsr(TOP_MEM).lo;
+
+	return (void *) topmem - get_uma_memory_size(topmem);
+}
+#endif