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author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2019-08-03 21:28:40 +0300 |
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committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2019-08-07 05:42:15 +0000 |
commit | fe481eb3e5e8e8d39d892bfcfe085bc7d49ff886 (patch) | |
tree | b0e0c39376de50d41f3d6e21ed4b3aa47262d897 /src/northbridge/intel/x4x/ram_calc.c | |
parent | e119d86ca87937d45e67d00da722c28ac7ceaa9e (diff) |
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>
Diffstat (limited to 'src/northbridge/intel/x4x/ram_calc.c')
-rw-r--r-- | src/northbridge/intel/x4x/ram_calc.c | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/src/northbridge/intel/x4x/ram_calc.c b/src/northbridge/intel/x4x/ram_calc.c deleted file mode 100644 index dda838760d..0000000000 --- a/src/northbridge/intel/x4x/ram_calc.c +++ /dev/null @@ -1,177 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2012 secunet Security Networks AG - * Copyright (C) 2015 Damien Zammit <damien@zamaudio.com> - * - * 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. - */ - -#define __SIMPLE_DEVICE__ - -#include <cbmem.h> -#include <commonlib/helpers.h> -#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 <northbridge/intel/x4x/x4x.h> -#include <program_loading.h> -#include <cpu/intel/smm/gen1/smi.h> -#include <stage_cache.h> - -/** Decodes used Graphics Mode Select (GMS) to kilobytes. */ -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 GTT Graphics Memory Size (GGMS) to kilobytes. */ -u32 decode_igd_gtt_size(const u32 gsm) -{ - static const u8 ggc2gtt[] = { 0, 1, 0, 2, 0, 0, 0, 0, 0, 2, 3, 4}; - - if (gsm >= ARRAY_SIZE(ggc2gtt)) - die("Bad GTT Graphics Memory Size (GGMS) setting.\n"); - - return ggc2gtt[gsm] << 10; -} - -/** Decodes used TSEG size to bytes. */ -u32 decode_tseg_size(const u32 esmramc) -{ - if (!(esmramc & 1)) - return 0; - - switch ((esmramc >> 1) & 3) { - case 0: - return 1 << 20; - case 1: - return 2 << 20; - case 2: - return 8 << 20; - case 3: - default: - die("Bad TSEG setting.\n"); - } -} - -u8 decode_pciebar(u32 *const base, u32 *const len) -{ - *base = 0; - *len = 0; - const pci_devfn_t dev = PCI_DEV(0, 0, 0); - u32 pciexbar = 0; - u32 pciexbar_reg; - u32 reg32; - int max_buses; - const struct { - u16 num_buses; - u32 addr_mask; - } busmask[] = { - {256, 0xf0000000}, - {128, 0xf8000000}, - {64, 0xfc000000}, - {0, 0}, - }; - - pciexbar_reg = pci_read_config32(dev, D0F0_PCIEXBAR_LO); - - if (!(pciexbar_reg & 1)) { - printk(BIOS_WARNING, "WARNING: MMCONF not set\n"); - return 0; - } - - reg32 = (pciexbar_reg >> 1) & 3; - pciexbar = pciexbar_reg & busmask[reg32].addr_mask; - max_buses = busmask[reg32].num_buses; - - if (!pciexbar) { - printk(BIOS_WARNING, "WARNING: pciexbar invalid\n"); - return 0; - } - - *base = pciexbar; - *len = max_buses << 20; - return 1; -} - -u32 northbridge_get_tseg_size(void) -{ - const u8 esmramc = pci_read_config8(PCI_DEV(0, 0, 0), D0F0_ESMRAMC); - return decode_tseg_size(esmramc); -} - -u32 northbridge_get_tseg_base(void) -{ - return pci_read_config32(PCI_DEV(0, 0, 0), D0F0_TSEG); -} - - -/* 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. */ -} |