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authorAaron Durbin <adurbin@chromium.org>2015-03-28 23:56:22 -0500
committerAaron Durbin <adurbin@chromium.org>2015-05-26 22:33:53 +0200
commit0424c95a6dafdb65070538d6c5aa394b75eb9850 (patch)
treef5bd9f485a1a44eece1662a29c1435a44ab5c58a /src/drivers/elog/elog.c
parentb6981c0f9c4ce89c4209c14fb326a414096f2ff1 (diff)
fmap: new API using region_device
Instead of being pointer based use the region infrastrucutre. Additionally, this removes the need for arch-specific compilation paths. The users of the new API can use the region APIs to memory map or read the region provided by the new fmap API. Change-Id: Ie36e9ff9cb554234ec394b921f029eeed6845aee Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/9170 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'src/drivers/elog/elog.c')
-rw-r--r--src/drivers/elog/elog.c49
1 files changed, 15 insertions, 34 deletions
diff --git a/src/drivers/elog/elog.c b/src/drivers/elog/elog.c
index da1f6fa1c0..8dce86b698 100644
--- a/src/drivers/elog/elog.c
+++ b/src/drivers/elog/elog.c
@@ -26,6 +26,7 @@
#include <pc80/mc146818rtc.h>
#endif
#include <bcd.h>
+#include <fmap.h>
#include <rtc.h>
#include <smbios.h>
#include <spi-generic.h>
@@ -35,7 +36,6 @@
#include <elog.h>
#include "elog_internal.h"
-#include <vendorcode/google/chromeos/fmap.h>
#if !IS_ENABLED(CONFIG_CHROMEOS) && CONFIG_ELOG_FLASH_BASE == 0
#error "CONFIG_ELOG_FLASH_BASE is invalid"
@@ -86,26 +86,6 @@ static inline u32 get_rom_size(void)
}
/*
- * Convert a memory mapped flash address into a flash offset
- */
-static inline u32 elog_flash_address_to_offset(u8 *address)
-{
-#if CONFIG_ARCH_X86
- /* For x86, assume address is memory-mapped near 4GB */
- u32 rom_size;
-
- if (!elog_spi)
- return 0;
-
- rom_size = get_rom_size();
-
- return (u32)address - ((u32)~0UL - rom_size + 1);
-#else
- return (u32)(uintptr_t)address;
-#endif
-}
-
-/*
* Pointer to an event log header in the event data area
*/
static inline struct event_header*
@@ -517,21 +497,22 @@ static void elog_find_flash(void)
{
elog_debug("elog_find_flash()\n");
-#if CONFIG_CHROMEOS
- /* Find the ELOG base and size in FMAP */
- u8 *flash_base_ptr;
- int fmap_size = find_fmap_entry("RW_ELOG", (void **)&flash_base_ptr);
- if (fmap_size < 0) {
- printk(BIOS_WARNING, "ELOG: Unable to find RW_ELOG in FMAP\n");
- flash_base = total_size = 0;
+ if (IS_ENABLED(CONFIG_CHROMEOS)) {
+ /* Find the ELOG base and size in FMAP */
+ struct region r;
+
+ if (fmap_locate_area("RW_ELOG", &r) < 0) {
+ printk(BIOS_WARNING,
+ "ELOG: Unable to find RW_ELOG in FMAP\n");
+ flash_base = total_size = 0;
+ } else {
+ flash_base = region_offset(&r);
+ total_size = MIN(region_sz(&r), CONFIG_ELOG_AREA_SIZE);
+ }
} else {
- flash_base = elog_flash_address_to_offset(flash_base_ptr);
- total_size = MIN(fmap_size, CONFIG_ELOG_AREA_SIZE);
+ flash_base = CONFIG_ELOG_FLASH_BASE;
+ total_size = CONFIG_ELOG_AREA_SIZE;
}
-#else
- flash_base = CONFIG_ELOG_FLASH_BASE;
- total_size = CONFIG_ELOG_AREA_SIZE;
-#endif
log_size = total_size - sizeof(struct elog_header);
full_threshold = log_size - ELOG_MIN_AVAILABLE_ENTRIES * MAX_EVENT_SIZE;
shrink_size = MIN(total_size * ELOG_SHRINK_PERCENTAGE / 100,