diff options
| author | Joseph Smith <joe@settoplinux.org> | 2010-03-17 03:18:29 +0000 |
|---|---|---|
| committer | Stefan Reinauer <stepan@openbios.org> | 2010-03-17 03:18:29 +0000 |
| commit | 0d7a99669545bef76d57d17fd41ab376e061b109 (patch) | |
| tree | f0f27f51661d5ead8970d5a65ee7a603549736a6 /src/northbridge/intel | |
| parent | bd112980ffcc7d9809dff88b7208e804c54345ab (diff) | |
This is kind of a pre CAR patch to properly allocate "shared" graphics memory
area.
CONFIG_GFXUMA is used in src/cpu/x86/mtrr/mtrr.c which is called by the cpu.
Attached is a revised patch which works well.
Signed-off-by: Joseph Smith <joe@settoplinux.org>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
See boot snips below:
Root Device assign_resources, bus 0 link: 0
8MB IGD UMA
Available memory: 581632KB
PCI_DOMAIN: 0000 assign_resources, bus 0 link: 0
----------------------------
Adding high table area
Adding UMA memory area
coreboot memory table:
0. 0000000000000000-0000000000000fff: CONFIGURATION TABLES
1. 0000000000001000-000000000009ffff: RAM
2. 0000000000100000-00000000237effff: RAM
3. 00000000237f0000-00000000237fffff: CONFIGURATION TABLES
4. 0000000023800000-0000000023ffffff: RESERVED
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5243 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/northbridge/intel')
| -rw-r--r-- | src/northbridge/intel/i82830/northbridge.c | 24 | ||||
| -rw-r--r-- | src/northbridge/intel/i82830/raminit.c | 2 |
2 files changed, 23 insertions, 3 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; diff --git a/src/northbridge/intel/i82830/raminit.c b/src/northbridge/intel/i82830/raminit.c index 9e2f3c4bf1..2eea5f0e19 100644 --- a/src/northbridge/intel/i82830/raminit.c +++ b/src/northbridge/intel/i82830/raminit.c @@ -48,7 +48,7 @@ Macros and definitions. * 0x0 for Refresh Disabled (Self Refresh) * 0x1 for Refresh interval 15.6 us for 133MHz * 0x2 for Refresh interval 7.8 us for 133MHz - * 0x7 /* Refresh interval 128 Clocks. (Fast Refresh Mode) + * 0x7 for Refresh interval 128 Clocks. (Fast Refresh Mode) */ #define RAM_COMMAND_REFRESH 0x1 |