diff options
Diffstat (limited to 'src/northbridge/intel/i82830/northbridge.c')
| -rw-r--r-- | src/northbridge/intel/i82830/northbridge.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/src/northbridge/intel/i82830/northbridge.c b/src/northbridge/intel/i82830/northbridge.c index af9663df09..da76a5d89b 100644 --- a/src/northbridge/intel/i82830/northbridge.c +++ b/src/northbridge/intel/i82830/northbridge.c @@ -1,7 +1,7 @@ /* * This file is part of the coreboot project. * - * Copyright (C) 2008 Joseph Smith <joe@smittys.pointclark.net> + * Copyright (C) 2008-2010 Joseph Smith <joe@settoplinux.org> * * 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 @@ -28,6 +28,8 @@ #include <stdlib.h> #include <string.h> #include <bitops.h> +#include <boot/tables.h> +#include <arch/coreboot_tables.h> #include "chip.h" #include "i82830.h" @@ -88,6 +90,18 @@ static uint32_t find_pci_tolm(struct bus *bus) return tolm; } +/* IGD memory */ +uint64_t uma_memory_base=0, uma_memory_size=0; + +int add_northbridge_resources(struct lb_memory *mem) +{ + printk_debug("Adding IGD UMA memory area\n"); + lb_add_memory_range(mem, LB_MEM_RESERVED, + uma_memory_base, uma_memory_size); + + return 0; +} + #if CONFIG_WRITE_HIGH_TABLES==1 #define HIGH_TABLES_SIZE 64 // maximum size of high tables in KB extern uint64_t high_tables_base, high_tables_size; @@ -106,8 +120,10 @@ static void pci_domain_set_resources(device_t dev) if (CONFIG_VIDEO_MB == 512) { igd_memory = (CONFIG_VIDEO_MB); + printk_debug("%dKB IGD UMA\n", igd_memory >> 10); } else { igd_memory = (CONFIG_VIDEO_MB * 1024); + printk_debug("%dMB IGD UMA\n", igd_memory >> 10); } /* Get the value of the highest DRB. This tells the end of @@ -116,7 +132,11 @@ static void pci_domain_set_resources(device_t dev) */ tomk = ((unsigned long)pci_read_config8(mc_dev, DRB + 3)) << 15; tomk -= igd_memory; - printk_debug("Memory detected: %ldKB RAM\n", tomk); + + /* For reserving UMA memory in the memory map */ + uma_memory_base = tomk * 1024ULL; + uma_memory_size = igd_memory * 1024ULL; + printk_debug("Available memory: %ldKB\n", tomk); /* Compute the top of low memory. */ tolmk = pci_tolm >> 10; |