northbridge/intel: Rename ram_calc.c to memmap.c

Use a name consistent with the more recent soc/intel.

Change-Id: Ie69583f28f384eb49517203e1c3867f27e6272de
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34699
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

1 files changed, 0 insertions, 166 deletions

diff --git a/src/northbridge/intel/gm45/ram_calc.c b/src/northbridge/intel/gm45/ram_calc.c
deleted file mode 100644
index 6795f7a61f..0000000000
--- a/src/northbridge/intel/gm45/ram_calc.c
+++ /dev/null
@@ -1,166 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2012 secunet Security Networks AG
- *
- * 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.
- */
-
-// Use simple device model for this file even in ramstage
-#define __SIMPLE_DEVICE__
-
-#include <stdint.h>
-#include <arch/cpu.h>
-#include <device/pci_ops.h>
-#include <device/pci_def.h>
-#include <console/console.h>
-#include <cpu/intel/romstage.h>
-#include <cpu/x86/mtrr.h>
-#include <cbmem.h>
-#include <program_loading.h>
-#include <stage_cache.h>
-#include <cpu/intel/smm/gen1/smi.h>
-#include "gm45.h"
-
-/*
- * Decodes used Graphics Mode Select (GMS) to kilobytes.
- * The options for 1M, 4M, 8M and 16M preallocated igd memory are
- * undocumented but are verified to work.
- */
-u32 decode_igd_memory_size(const u32 gms)
-{
-	static const u16 ggc2uma[] = { 0, 1, 4, 8, 16, 32, 48, 64, 128, 256,
-				       96, 160, 224, 352 };
-
-	if (gms >= ARRAY_SIZE(ggc2uma))
-		die("Bad Graphics Mode Select (GMS) setting.\n");
-
-	return ggc2uma[gms] << 10;
-}
-
-/** Decodes used Graphics Stolen Memory (GSM) to kilobytes. */
-u32 decode_igd_gtt_size(const u32 gsm)
-{
-	switch (gsm) {
-	case 0:
-		return 0 << 10;
-	case 1:
-		return 1 << 10;
-	case 3:
-	case 9:
-		return 2 << 10;
-	case 10:
-		return 3 << 10;
-	case 11:
-		return 4 << 10;
-	default:
-		die("Bad Graphics Stolen Memory (GSM) setting.\n");
-		return 0;
-	}
-}
-
-/* Decodes TSEG region size to kilobytes. */
-u32 decode_tseg_size(u8 esmramc)
-{
-	if (!(esmramc & 1))
-		return 0;
-	switch ((esmramc >> 1) & 3) {
-	case 0:
-		return 1 << 10;
-	case 1:
-		return 2 << 10;
-	case 2:
-		return 8 << 10;
-	case 3:
-	default:
-		die("Bad TSEG setting.\n");
-	}
-}
-
-u32 northbridge_get_tseg_base(void)
-{
-	const pci_devfn_t dev = PCI_DEV(0, 0, 0);
-
-	u32 tor;
-
-	/* Top of Lower Usable DRAM */
-	tor = (pci_read_config16(dev, D0F0_TOLUD) & 0xfff0) << 16;
-
-	/* Graphics memory comes next */
-	const u32 ggc = pci_read_config16(dev, D0F0_GGC);
-	const u8 esmramc = pci_read_config8(dev, D0F0_ESMRAMC);
-	if (!(ggc & 2)) {
-		/* Graphics memory */
-		tor -= decode_igd_memory_size((ggc >> 4) & 0xf) << 10;
-		/* GTT Graphics Stolen Memory Size (GGMS) */
-		tor -= decode_igd_gtt_size((ggc >> 8) & 0xf) << 10;
-	}
-	/* TSEG size */
-	tor -= decode_tseg_size(esmramc) << 10;
-	return tor;
-}
-
-u32 northbridge_get_tseg_size(void)
-{
-	const u8 esmramc = pci_read_config8(PCI_DEV(0, 0, 0), D0F0_ESMRAMC);
-	return decode_tseg_size(esmramc) << 10;
-}
-
-/* Depending of UMA and TSEG configuration, TSEG might start at any
- * 1 MiB alignment. As this may cause very greedy MTRR setup, push
- * CBMEM top downwards to 4 MiB boundary.
- */
-void *cbmem_top(void)
-{
-	uintptr_t top_of_ram = ALIGN_DOWN(northbridge_get_tseg_base(), 4*MiB);
-	return (void *) top_of_ram;
-}
-
-void stage_cache_external_region(void **base, size_t *size)
-{
-	/* The stage cache lives at the end of the TSEG region.
-	 * The top of RAM is defined to be the TSEG base address.
-	 */
-	*size = CONFIG_SMM_RESERVED_SIZE;
-	*base = (void *)((uintptr_t)northbridge_get_tseg_base()
-		+ northbridge_get_tseg_size() - CONFIG_SMM_RESERVED_SIZE);
-}
-
-/* platform_enter_postcar() determines the stack to use after
- * cache-as-ram is torn down as well as the MTRR settings to use,
- * and continues execution in postcar stage. */
-void platform_enter_postcar(void)
-{
-	struct postcar_frame pcf;
-	uintptr_t top_of_ram;
-
-	if (postcar_frame_init(&pcf, 0))
-		die("Unable to initialize postcar frame.\n");
-
-	/* Cache the ROM as WP just below 4GiB. */
-	postcar_frame_add_romcache(&pcf, MTRR_TYPE_WRPROT);
-
-	/* Cache RAM as WB from 0 -> CACHE_TMP_RAMTOP. */
-	postcar_frame_add_mtrr(&pcf, 0, CACHE_TMP_RAMTOP, MTRR_TYPE_WRBACK);
-
-	/* Cache 8 MiB region below the top of ram and 2 MiB above top of
-	 * ram to cover both cbmem as the TSEG region.
-	 */
-	top_of_ram = (uintptr_t)cbmem_top();
-	postcar_frame_add_mtrr(&pcf, top_of_ram - 8*MiB, 8*MiB,
-			       MTRR_TYPE_WRBACK);
-	postcar_frame_add_mtrr(&pcf, northbridge_get_tseg_base(),
-			       northbridge_get_tseg_size(), MTRR_TYPE_WRBACK);
-
-	run_postcar_phase(&pcf);
-
-	/* We do not return here. */
-}