At present we reuse the mrc_output char * to also point to the cache record after it has been set up. This is confusing and doesn't save much data space.
Add a new mrc_cache member instead.
Signed-off-by: Simon Glass sjg@chromium.org Reviewed-by: Bin Meng bmeng.cn@gmail.com ---
Changes in v4: None Changes in v3: None Changes in v2: None
arch/x86/include/asm/global_data.h | 2 ++ arch/x86/lib/mrccache.c | 11 +++++------ 2 files changed, 7 insertions(+), 6 deletions(-)
diff --git a/arch/x86/include/asm/global_data.h b/arch/x86/include/asm/global_data.h index 0e7b946205..3212b006eb 100644 --- a/arch/x86/include/asm/global_data.h +++ b/arch/x86/include/asm/global_data.h @@ -10,6 +10,7 @@ #ifndef __ASSEMBLY__
#include <asm/processor.h> +#include <asm/mrccache.h>
enum pei_boot_mode_t { PEI_BOOT_NONE = 0, @@ -93,6 +94,7 @@ struct arch_global_data { /* MRC training data to save for the next boot */ char *mrc_output; unsigned int mrc_output_len; + struct mrc_data_container *mrc_cache; ulong table; /* Table pointer from previous loader */ int turbo_state; /* Current turbo state */ struct irq_routing_table *pirq_routing_table; diff --git a/arch/x86/lib/mrccache.c b/arch/x86/lib/mrccache.c index 7136166be6..6e561fe528 100644 --- a/arch/x86/lib/mrccache.c +++ b/arch/x86/lib/mrccache.c @@ -188,8 +188,7 @@ static void mrccache_setup(void *data) cache->reserved = 0; memcpy(cache->data, gd->arch.mrc_output, cache->data_size);
- /* gd->arch.mrc_output now points to the container */ - gd->arch.mrc_output = (char *)cache; + gd->arch.mrc_cache = cache; }
int mrccache_reserve(void) @@ -255,7 +254,7 @@ int mrccache_get_region(struct udevice **devp, struct mrc_region *entry)
int mrccache_save(void) { - struct mrc_data_container *data; + struct mrc_data_container *cache; struct mrc_region entry; struct udevice *sf; int ret; @@ -271,10 +270,10 @@ int mrccache_save(void) ret = device_probe(sf); if (ret) goto err_entry; - data = (struct mrc_data_container *)gd->arch.mrc_output; - ret = mrccache_update(sf, &entry, data); + cache = gd->arch.mrc_cache; + ret = mrccache_update(sf, &entry, cache); if (!ret) { - debug("Saved MRC data with checksum %04x\n", data->checksum); + debug("Saved MRC data with checksum %04x\n", cache->checksum); } else if (ret == -EEXIST) { debug("MRC data is the same as last time, skipping save\n"); ret = 0;