diff options
Diffstat (limited to 'src/lib')
| -rw-r--r-- | src/lib/Makefile.inc | 13 | ||||
| -rw-r--r-- | src/lib/cbmem.c | 288 | ||||
| -rw-r--r-- | src/lib/rmodule.c | 8 |
3 files changed, 4 insertions, 305 deletions
diff --git a/src/lib/Makefile.inc b/src/lib/Makefile.inc index b5eb81971d..9650fd5fd9 100644 --- a/src/lib/Makefile.inc +++ b/src/lib/Makefile.inc @@ -82,17 +82,8 @@ ramstage-y += memrange.c ramstage-$(CONFIG_COOP_MULTITASKING) += thread.c ramstage-$(CONFIG_TIMER_QUEUE) += timer_queue.c -# The CBMEM implementations are chosen based on CONFIG_DYNAMIC_CBMEM. -ifeq ($(CONFIG_DYNAMIC_CBMEM),y) -ramstage-y += dynamic_cbmem.c -romstage-y += dynamic_cbmem.c -else -ramstage-y += cbmem.c -romstage-y += cbmem.c -endif # CONFIG_DYNAMIC_CBMEM - -romstage-y += cbmem_common.c -ramstage-y += cbmem_common.c +romstage-y += cbmem_common.c dynamic_cbmem.c +ramstage-y += cbmem_common.c dynamic_cbmem.c ramstage-y += hexdump.c romstage-y += hexdump.c diff --git a/src/lib/cbmem.c b/src/lib/cbmem.c deleted file mode 100644 index d5f89a188d..0000000000 --- a/src/lib/cbmem.c +++ /dev/null @@ -1,288 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2009 coresystems GmbH - * - * 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA - */ - -#include <types.h> -#include <string.h> -#include <bootmem.h> -#include <bootstate.h> -#include <cbmem.h> -#include <console/console.h> -#include <arch/early_variables.h> -#if CONFIG_HAVE_ACPI_RESUME && !defined(__PRE_RAM__) -#include <arch/acpi.h> -#endif - -// The CBMEM TOC reserves 512 bytes to keep -// the other entries somewhat aligned. -// Increase if MAX_CBMEM_ENTRIES exceeds 21 -#define CBMEM_TOC_RESERVED 512 -#define MAX_CBMEM_ENTRIES 16 -#define CBMEM_MAGIC 0x434f5245 - -struct cbmem_entry { - u32 magic; - u32 id; - u64 base; - u64 size; -} __attribute__((packed)); - -#ifndef __PRE_RAM__ -static uint64_t cbmem_base = 0; -static uint64_t cbmem_size = 0; -#endif - -static void cbmem_trace_location(uint64_t base, uint64_t size, const char *s) -{ - if (base && size && s) { - printk(BIOS_DEBUG, "CBMEM region %llx-%llx (%s)\n", - base, base + size - 1, s); - } -} - -static void cbmem_locate_table(uint64_t *base, uint64_t *size) -{ -#ifdef __PRE_RAM__ - get_cbmem_table(base, size); -#else - if (!(cbmem_base && cbmem_size)) { - get_cbmem_table(&cbmem_base, &cbmem_size); - cbmem_trace_location(cbmem_base, cbmem_size, __FUNCTION__); - } - *base = cbmem_base; - *size = cbmem_size; -#endif -} - -struct cbmem_entry *get_cbmem_toc(void) -{ - uint64_t base, size; - cbmem_locate_table(&base, &size); - return (struct cbmem_entry *)(unsigned long)base; -} - -#if !defined(__PRE_RAM__) -void cbmem_late_set_table(uint64_t base, uint64_t size) -{ - cbmem_trace_location(base, size, __FUNCTION__); - cbmem_base = base; - cbmem_size = size; -} -#endif - -/** - * cbmem is a simple mechanism to do some kind of book keeping of the coreboot - * high tables memory. This is a small amount of memory which is "stolen" from - * the system memory for coreboot purposes. Usually this memory is used for - * - the coreboot table - * - legacy tables (PIRQ, MP table) - * - ACPI tables - * - suspend/resume backup memory - */ - -static void cbmem_initialize_empty(void) -{ - uint64_t baseaddr, size; - struct cbmem_entry *cbmem_toc; - - cbmem_locate_table(&baseaddr, &size); - cbmem_trace_location(baseaddr, size, __FUNCTION__); - - if (!(baseaddr && size)) { - printk(BIOS_CRIT, "Unable to set location for CBMEM.\n"); - return; - } - - cbmem_toc = (struct cbmem_entry *)(unsigned long)baseaddr; - memset(cbmem_toc, 0, CBMEM_TOC_RESERVED); - - cbmem_toc[0] = (struct cbmem_entry) { - .magic = CBMEM_MAGIC, - .id = CBMEM_ID_FREESPACE, - .base = baseaddr + CBMEM_TOC_RESERVED, - .size = size - CBMEM_TOC_RESERVED - }; -} - -static int cbmem_check_toc(void) -{ - uint64_t baseaddr, size; - struct cbmem_entry *cbmem_toc; - - cbmem_locate_table(&baseaddr, &size); - cbmem_trace_location(baseaddr, size, __FUNCTION__); - - cbmem_toc = (struct cbmem_entry *)(unsigned long)baseaddr; - - return (cbmem_toc[0].magic == CBMEM_MAGIC); -} - -void *cbmem_add(u32 id, u64 size) -{ - struct cbmem_entry *cbmem_toc; - int i; - void *p; - - /* - * This could be a restart, check if the section is there already. It - * is remotely possible that the dram contents persisted over the - * bootloader upgrade AND the same section now needs more room, but - * this is quite a remote possibility and it is ignored here. - */ - p = cbmem_find(id); - if (p) { - printk(BIOS_NOTICE, - "CBMEM section %x: using existing location at %p.\n", - id, p); - return p; - } - - cbmem_toc = get_cbmem_toc(); - - if (cbmem_toc == NULL) { - return NULL; - } - - if (cbmem_toc[0].magic != CBMEM_MAGIC) { - printk(BIOS_ERR, "ERROR: CBMEM was not initialized yet.\n"); - return NULL; - } - - /* Will the entry fit at all? */ - if (size > cbmem_toc[0].size) { - printk(BIOS_ERR, "ERROR: Not enough memory for table %x\n", id); - return NULL; - } - - /* Align size to 512 byte blocks */ - - size = ALIGN(size, 512) < cbmem_toc[0].size ? - ALIGN(size, 512) : cbmem_toc[0].size; - - /* Now look for the first free/usable TOC entry */ - for (i = 0; i < MAX_CBMEM_ENTRIES; i++) { - if (cbmem_toc[i].id == CBMEM_ID_NONE) - break; - } - - if (i >= MAX_CBMEM_ENTRIES) { - printk(BIOS_ERR, "ERROR: No more CBMEM entries available.\n"); - return NULL; - } - - printk(BIOS_DEBUG, "Adding CBMEM entry as no. %d\n", i); - - cbmem_toc[i] = (struct cbmem_entry) { - .magic = CBMEM_MAGIC, - .id = id, - .base = cbmem_toc[0].base, - .size = size - }; - - cbmem_toc[0].base += size; - cbmem_toc[0].size -= size; - - return (void *)(uintptr_t)cbmem_toc[i].base; -} - -void *cbmem_find(u32 id) -{ - struct cbmem_entry *cbmem_toc; - int i; - cbmem_toc = get_cbmem_toc(); - - if (cbmem_toc == NULL) - return NULL; - - for (i = 0; i < MAX_CBMEM_ENTRIES; i++) { - if (cbmem_toc[i].id == id) - return (void *)(unsigned long)cbmem_toc[i].base; - } - - return (void *)NULL; -} - -/* Returns True if it was not initialized before. */ -int cbmem_recovery(int is_wakeup) -{ - int found = cbmem_check_toc(); - int wipe = 0; - - /* CBMEM TOC is wiped clean when we are not waking up from S3 - * suspend. Boards with EARLY_CBMEM_INIT do this in romstage, - * boards without EARLY_CBMEM_INIT do this in ramstage. - */ -#if defined(__PRE_RAM__) && CONFIG_EARLY_CBMEM_INIT - wipe = 1; -#endif -#if !defined(__PRE_RAM__) && !CONFIG_EARLY_CBMEM_INIT - wipe = 1; -#endif - - if (!is_wakeup && wipe) - cbmem_initialize_empty(); - - if (is_wakeup && !found) { - cbmem_initialize_empty(); - cbmem_fail_resume(); - } - - /* Complete migration to CBMEM. */ - cbmem_run_init_hooks(); - - return !found; -} - -#ifndef __PRE_RAM__ -static void init_cbmem_post_device(void *unused) -{ -#if CONFIG_HAVE_ACPI_RESUME - cbmem_recovery(acpi_is_wakeup()); -#else - cbmem_recovery(0); -#endif -} - -BOOT_STATE_INIT_ENTRIES(cbmem_bscb) = { - BOOT_STATE_INIT_ENTRY(BS_POST_DEVICE, BS_ON_ENTRY, - init_cbmem_post_device, NULL), -}; - -void cbmem_add_bootmem(void) -{ - bootmem_add_range(cbmem_base, cbmem_size, LB_MEM_TABLE); -} - -void cbmem_list(void) -{ - struct cbmem_entry *cbmem_toc; - int i; - cbmem_toc = get_cbmem_toc(); - - if (cbmem_toc == NULL) - return; - - for (i = 0; i < MAX_CBMEM_ENTRIES; i++) { - - if (cbmem_toc[i].magic != CBMEM_MAGIC) - continue; - cbmem_print_entry(i, cbmem_toc[i].id, cbmem_toc[i].base, - cbmem_toc[i].size); - } -} -#endif diff --git a/src/lib/rmodule.c b/src/lib/rmodule.c index d7c2326f12..8d96e8d86f 100644 --- a/src/lib/rmodule.c +++ b/src/lib/rmodule.c @@ -17,6 +17,8 @@ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include <assert.h> +#include <cbmem.h> +#include <cbfs_core.h> #include <stdint.h> #include <stdlib.h> #include <string.h> @@ -249,10 +251,6 @@ int rmodule_calc_region(unsigned int region_alignment, size_t rmodule_size, return region_alignment - sizeof(struct rmodule_header); } -#if CONFIG_DYNAMIC_CBMEM -#include <cbmem.h> -#include <cbfs_core.h> - int rmodule_stage_load(struct rmod_stage_load *rsl, struct cbfs_stage *stage) { struct rmodule rmod_stage; @@ -307,5 +305,3 @@ int rmodule_stage_load_from_cbfs(struct rmod_stage_load *rsl) return rmodule_stage_load(rsl, stage); } - -#endif /* DYNAMIC_CBMEM */ |