x86: Refactor table-writing code a little
The implementation of write_tables() is confusing because it uses the
rom_table_start variable as the address pointer as it progresses.
Rename it to rom_addr to make the code clearer. Move the rom_table_end
variable into the block where it is used.
Also update logging to use the ACPI category, now that it is available.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/arch/x86/lib/tables.c b/arch/x86/lib/tables.c
index ea834a5..772c04f 100644
--- a/arch/x86/lib/tables.c
+++ b/arch/x86/lib/tables.c
@@ -3,7 +3,7 @@
* Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
*/
-#define LOG_CATEGORY LOGC_BOARD
+#define LOG_CATEGORY LOGC_ACPI
#include <common.h>
#include <bloblist.h>
@@ -78,33 +78,33 @@
int write_tables(void)
{
- u32 rom_table_start;
- u32 rom_table_end;
u32 high_table, table_size;
struct memory_area cfg_tables[ARRAY_SIZE(table_list) + 1];
+ u32 rom_addr;
int i;
- rom_table_start = ROM_TABLE_ADDR;
+ rom_addr = ROM_TABLE_ADDR;
- debug("Writing tables to %x:\n", rom_table_start);
+ debug("Writing tables to %x:\n", rom_addr);
for (i = 0; i < ARRAY_SIZE(table_list); i++) {
const struct table_info *table = &table_list[i];
int size = table->size ? : CONFIG_ROM_TABLE_SIZE;
+ u32 rom_table_end;
if (IS_ENABLED(CONFIG_BLOBLIST_TABLES) && table->tag) {
- rom_table_start = (ulong)bloblist_add(table->tag, size,
- table->align);
- if (!rom_table_start)
+ rom_addr = (ulong)bloblist_add(table->tag, size,
+ table->align);
+ if (!rom_addr)
return log_msg_ret("bloblist", -ENOBUFS);
}
- rom_table_end = table->write(rom_table_start);
+ rom_table_end = table->write(rom_addr);
if (!rom_table_end) {
log_err("Can't create configuration table %d\n", i);
return -EINTR;
}
if (IS_ENABLED(CONFIG_SEABIOS)) {
- table_size = rom_table_end - rom_table_start;
+ table_size = rom_table_end - rom_addr;
high_table = (u32)(ulong)high_table_malloc(table_size);
if (high_table) {
if (!table->write(high_table)) {
@@ -123,13 +123,13 @@
}
debug("- wrote '%s' to %x, end %x\n", table->name,
- rom_table_start, rom_table_end);
- if (rom_table_end - rom_table_start > size) {
+ rom_addr, rom_table_end);
+ if (rom_table_end - rom_addr > size) {
log_err("Out of space for configuration tables: need %x, have %x\n",
- rom_table_end - rom_table_start, size);
+ rom_table_end - rom_addr, size);
return log_msg_ret("bloblist", -ENOSPC);
}
- rom_table_start = rom_table_end;
+ rom_addr = rom_table_end;
}
if (IS_ENABLED(CONFIG_SEABIOS)) {