Kyösti Mälkki (kyosti.malkki@gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/4668
-gerrit
commit e506222624f43c5faa542ed214108ddbb5865d46 Author: Kyösti Mälkki kyosti.malkki@gmail.com Date: Mon Jan 6 17:20:31 2014 +0200
CBMEM: Replace cbmem_initialize() with cbmem_recovery()
The replacement function confirms CBMEM region is wiped clean on power cycles and resets. It also introduces compatibility interface to ease up transition to DYNAMIC_CBMEM.
Change-Id: Ic5445c5bff4aff22a43821f3064f2df458b9f250 Signed-off-by: Kyösti Mälkki kyosti.malkki@gmail.com --- src/include/cbmem.h | 9 ++++-- src/lib/cbmem.c | 40 +++++++++++++++------------ src/lib/dynamic_cbmem.c | 10 +++++++ src/mainboard/getac/p470/romstage.c | 2 +- src/mainboard/google/butterfly/romstage.c | 2 +- src/mainboard/google/link/romstage.c | 2 +- src/mainboard/google/parrot/romstage.c | 2 +- src/mainboard/google/stout/romstage.c | 2 +- src/mainboard/ibase/mb899/romstage.c | 2 +- src/mainboard/intel/cougar_canyon2/romstage.c | 2 +- src/mainboard/intel/d945gclf/romstage.c | 2 +- src/mainboard/intel/emeraldlake2/romstage.c | 2 +- src/mainboard/kontron/986lcd-m/romstage.c | 2 +- src/mainboard/kontron/ktqm77/romstage.c | 2 +- src/mainboard/lenovo/t60/romstage.c | 2 +- src/mainboard/lenovo/x201/romstage.c | 6 +++- src/mainboard/lenovo/x60/romstage.c | 2 +- src/mainboard/roda/rk886ex/romstage.c | 2 +- src/mainboard/samsung/lumpy/romstage.c | 2 +- src/mainboard/samsung/stumpy/romstage.c | 2 +- src/mainboard/via/epia-m850/romstage.c | 2 +- src/northbridge/intel/nehalem/raminit.c | 2 +- 22 files changed, 62 insertions(+), 39 deletions(-)
diff --git a/src/include/cbmem.h b/src/include/cbmem.h index 5f1ac3c..eff1895 100644 --- a/src/include/cbmem.h +++ b/src/include/cbmem.h @@ -90,6 +90,9 @@ struct cbmem_entry;
#define DYN_CBMEM_ALIGN_SIZE (4096)
+/* By default cbmem is attempted to be recovered. Returns 0 if cbmem was + * recovered or 1 if cbmem had to be reinitialized. */ +int cbmem_initialize(void); /* Initialize cbmem to be empty. */ void cbmem_initialize_empty(void);
@@ -153,9 +156,9 @@ struct cbmem_entry *get_cbmem_toc(void);
unsigned long get_top_of_ram(void);
-/* By default cbmem is attempted to be recovered. Returns 0 if cbmem was - * recovered or 1 if cbmem had to be reinitialized. */ -int cbmem_initialize(void); +/* Returns 0 if old cbmem was recovered. Recovery is only attempted if + * s3resume is non-zero. */ +int cbmem_recovery(int s3resume); /* Add a cbmem entry of a given size and id. These return NULL on failure. The * add function performs a find first and do not check against the original * size. */ diff --git a/src/lib/cbmem.c b/src/lib/cbmem.c index 6cdf772..704733f 100644 --- a/src/lib/cbmem.c +++ b/src/lib/cbmem.c @@ -95,8 +95,7 @@ void cbmem_late_set_table(uint64_t base, uint64_t size) * - suspend/resume backup memory */
-#if CONFIG_EARLY_CBMEM_INIT || !defined(__PRE_RAM__) -static void cbmem_init(void) +static void cbmem_initialize_empty(void) { uint64_t baseaddr, size; struct cbmem_entry *cbmem_toc; @@ -119,7 +118,6 @@ static void cbmem_init(void) .size = size - CBMEM_TOC_RESERVED }; } -#endif
int cbmem_reinit(void) { @@ -219,32 +217,40 @@ void *cbmem_find(u32 id) return (void *)NULL; }
-#if CONFIG_EARLY_CBMEM_INIT || !defined(__PRE_RAM__) /* Returns True if it was not initialized before. */ -int cbmem_initialize(void) +int cbmem_recovery(int is_wakeup) { - int rv = 0; + int found = cbmem_reinit(); + int wipe = 0; + +#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();
- /* We expect the romstage to always initialize it. */ - if (!cbmem_reinit()) { - cbmem_init(); + if (is_wakeup && !found) { + cbmem_initialize_empty(); cbmem_fail_resume(); - rv = 1; } -#ifndef __PRE_RAM__ + cbmem_arch_init(); -#endif - /* Migrate cache-as-ram variables. */ car_migrate_variables(); - - return rv; + return !found; } -#endif
#ifndef __PRE_RAM__ static void init_cbmem_post_device(void *unused) { - cbmem_initialize(); +#if CONFIG_HAVE_ACPI_RESUME + cbmem_recovery(acpi_is_wakeup()); +#else + cbmem_recovery(0); +#endif #if CONFIG_CONSOLE_CBMEM cbmemc_reinit(); #endif diff --git a/src/lib/dynamic_cbmem.c b/src/lib/dynamic_cbmem.c index 0ab8f81..0cc6295 100644 --- a/src/lib/dynamic_cbmem.c +++ b/src/lib/dynamic_cbmem.c @@ -256,6 +256,16 @@ int cbmem_initialize(void) return 0; }
+int cbmem_recovery(int is_wakeup) +{ + int rv = 0; + if (!is_wakeup) + cbmem_initialize_empty(); + else + rv = cbmem_initialize(); + return rv; +} + static void *cbmem_base(void) { struct cbmem_root *root; diff --git a/src/mainboard/getac/p470/romstage.c b/src/mainboard/getac/p470/romstage.c index 87af8ca..a081a8a 100644 --- a/src/mainboard/getac/p470/romstage.c +++ b/src/mainboard/getac/p470/romstage.c @@ -357,7 +357,7 @@ void main(unsigned long bist) #endif MCHBAR16(SSKPD) = 0xCAFE;
- cbmem_was_initted = !cbmem_initialize(); + cbmem_was_initted = !cbmem_recovery(boot_mode==2);
#if CONFIG_HAVE_ACPI_RESUME /* If there is no high memory area, we didn't boot before, so diff --git a/src/mainboard/google/butterfly/romstage.c b/src/mainboard/google/butterfly/romstage.c index b9a2ae1..ae645ab 100644 --- a/src/mainboard/google/butterfly/romstage.c +++ b/src/mainboard/google/butterfly/romstage.c @@ -244,7 +244,7 @@ void main(unsigned long bist) post_code(0x3e);
MCHBAR16(SSKPD) = 0xCAFE; - cbmem_was_initted = !cbmem_initialize(); + cbmem_was_initted = !cbmem_recovery(boot_mode==2); if (boot_mode!=2) save_mrc_data(&pei_data)
diff --git a/src/mainboard/google/link/romstage.c b/src/mainboard/google/link/romstage.c index dbaf04b..be4a446 100644 --- a/src/mainboard/google/link/romstage.c +++ b/src/mainboard/google/link/romstage.c @@ -286,7 +286,7 @@ void main(unsigned long bist) post_code(0x3e);
MCHBAR16(SSKPD) = 0xCAFE; - cbmem_was_initted = !cbmem_initialize(); + cbmem_was_initted = !cbmem_recovery(boot_mode==2); if (boot_mode!=2) save_mrc_data(&pei_data)
diff --git a/src/mainboard/google/parrot/romstage.c b/src/mainboard/google/parrot/romstage.c index 253e679..4bade16 100644 --- a/src/mainboard/google/parrot/romstage.c +++ b/src/mainboard/google/parrot/romstage.c @@ -244,7 +244,7 @@ void main(unsigned long bist) post_code(0x3e);
MCHBAR16(SSKPD) = 0xCAFE; - cbmem_was_initted = !cbmem_initialize(); + cbmem_was_initted = !cbmem_recovery(boot_mode==2); if (boot_mode!=2) save_mrc_data(&pei_data)
diff --git a/src/mainboard/google/stout/romstage.c b/src/mainboard/google/stout/romstage.c index 99aa93b..3535fdb 100644 --- a/src/mainboard/google/stout/romstage.c +++ b/src/mainboard/google/stout/romstage.c @@ -296,7 +296,7 @@ void main(unsigned long bist) post_code(0x3e);
MCHBAR16(SSKPD) = 0xCAFE; - cbmem_was_initted = !cbmem_initialize(); + cbmem_was_initted = !cbmem_recovery(boot_mode==2); if (boot_mode!=2) save_mrc_data(&pei_data)
diff --git a/src/mainboard/ibase/mb899/romstage.c b/src/mainboard/ibase/mb899/romstage.c index 222c376..0b9d408 100644 --- a/src/mainboard/ibase/mb899/romstage.c +++ b/src/mainboard/ibase/mb899/romstage.c @@ -311,7 +311,7 @@ void main(unsigned long bist)
MCHBAR16(SSKPD) = 0xCAFE;
- cbmem_was_initted = !cbmem_initialize(); + cbmem_was_initted = !cbmem_recovery(boot_mode==2);
#if CONFIG_HAVE_ACPI_RESUME /* If there is no high memory area, we didn't boot before, so diff --git a/src/mainboard/intel/cougar_canyon2/romstage.c b/src/mainboard/intel/cougar_canyon2/romstage.c index 42b19e4..77f6a3e 100644 --- a/src/mainboard/intel/cougar_canyon2/romstage.c +++ b/src/mainboard/intel/cougar_canyon2/romstage.c @@ -322,7 +322,7 @@ void romstage_main_continue(EFI_STATUS status, VOID *HobListPtr) { quick_ram_check(); post_code(0x4e);
- cbmem_was_initted = !cbmem_initialize(); + cbmem_was_initted = !cbmem_recovery(boot_mode==2);
if(cbmem_was_initted) { reset_system(); diff --git a/src/mainboard/intel/d945gclf/romstage.c b/src/mainboard/intel/d945gclf/romstage.c index 166743f..69d4232 100644 --- a/src/mainboard/intel/d945gclf/romstage.c +++ b/src/mainboard/intel/d945gclf/romstage.c @@ -269,7 +269,7 @@ void main(unsigned long bist)
MCHBAR16(SSKPD) = 0xCAFE;
- cbmem_was_initted = !cbmem_initialize(); + cbmem_was_initted = !cbmem_recovery(boot_mode==2);
#if CONFIG_HAVE_ACPI_RESUME /* If there is no high memory area, we didn't boot before, so diff --git a/src/mainboard/intel/emeraldlake2/romstage.c b/src/mainboard/intel/emeraldlake2/romstage.c index d132642..9a8b420 100644 --- a/src/mainboard/intel/emeraldlake2/romstage.c +++ b/src/mainboard/intel/emeraldlake2/romstage.c @@ -296,7 +296,7 @@ void main(unsigned long bist) post_code(0x3e);
MCHBAR16(SSKPD) = 0xCAFE; - cbmem_was_initted = !cbmem_initialize(); + cbmem_was_initted = !cbmem_recovery(boot_mode==2); if (boot_mode!=2) save_mrc_data(&pei_data)
diff --git a/src/mainboard/kontron/986lcd-m/romstage.c b/src/mainboard/kontron/986lcd-m/romstage.c index 1875a10..549facd 100644 --- a/src/mainboard/kontron/986lcd-m/romstage.c +++ b/src/mainboard/kontron/986lcd-m/romstage.c @@ -410,7 +410,7 @@ void main(unsigned long bist)
MCHBAR16(SSKPD) = 0xCAFE;
- cbmem_was_initted = !cbmem_initialize(); + cbmem_was_initted = !cbmem_recovery(boot_mode==2);
#if CONFIG_HAVE_ACPI_RESUME /* If there is no high memory area, we didn't boot before, so diff --git a/src/mainboard/kontron/ktqm77/romstage.c b/src/mainboard/kontron/ktqm77/romstage.c index 9f15401..f720ac2 100644 --- a/src/mainboard/kontron/ktqm77/romstage.c +++ b/src/mainboard/kontron/ktqm77/romstage.c @@ -295,7 +295,7 @@ void main(unsigned long bist) post_code(0x3e);
MCHBAR16(SSKPD) = 0xCAFE; - cbmem_was_initted = !cbmem_initialize(); + cbmem_was_initted = !cbmem_recovery(boot_mode==2); if (boot_mode!=2) save_mrc_data(&pei_data)
diff --git a/src/mainboard/lenovo/t60/romstage.c b/src/mainboard/lenovo/t60/romstage.c index 1b7e693..dae917c 100644 --- a/src/mainboard/lenovo/t60/romstage.c +++ b/src/mainboard/lenovo/t60/romstage.c @@ -321,7 +321,7 @@ void main(unsigned long bist)
MCHBAR16(SSKPD) = 0xCAFE;
- cbmem_was_initted = !cbmem_initialize(); + cbmem_was_initted = !cbmem_recovery(boot_mode==2);
#if CONFIG_HAVE_ACPI_RESUME /* If there is no high memory area, we didn't boot before, so diff --git a/src/mainboard/lenovo/x201/romstage.c b/src/mainboard/lenovo/x201/romstage.c index 18645ac..90d31cc 100644 --- a/src/mainboard/lenovo/x201/romstage.c +++ b/src/mainboard/lenovo/x201/romstage.c @@ -331,7 +331,11 @@ void main(unsigned long bist) outl(reg32 & ~(7 << 10), DEFAULT_PMBASE + 0x04); }
- cbmem_initted = !cbmem_initialize(); + /* FIXME: If not in s3resume, raminit() calls cbmem_recovery(0), + * clears all of CBMEM region and puts in MRC training results. + * Tell here were are doing resume to avoid wiping CBMEM region + * again. */ + cbmem_initted = !cbmem_recovery(1);
#if CONFIG_HAVE_ACPI_RESUME /* If there is no high memory area, we didn't boot before, so diff --git a/src/mainboard/lenovo/x60/romstage.c b/src/mainboard/lenovo/x60/romstage.c index 26a7b9b..1198fb2 100644 --- a/src/mainboard/lenovo/x60/romstage.c +++ b/src/mainboard/lenovo/x60/romstage.c @@ -323,7 +323,7 @@ void main(unsigned long bist)
MCHBAR16(SSKPD) = 0xCAFE;
- cbmem_was_initted = !cbmem_initialize(); + cbmem_was_initted = !cbmem_recovery(boot_mode==2);
#if CONFIG_HAVE_ACPI_RESUME /* If there is no high memory area, we didn't boot before, so diff --git a/src/mainboard/roda/rk886ex/romstage.c b/src/mainboard/roda/rk886ex/romstage.c index e08c1c0..ad323f5 100644 --- a/src/mainboard/roda/rk886ex/romstage.c +++ b/src/mainboard/roda/rk886ex/romstage.c @@ -346,7 +346,7 @@ void main(unsigned long bist)
MCHBAR16(SSKPD) = 0xCAFE;
- cbmem_was_initted = !cbmem_initialize(); + cbmem_was_initted = !cbmem_recovery(boot_mode==2);
#if CONFIG_HAVE_ACPI_RESUME /* If there is no high memory area, we didn't boot before, so diff --git a/src/mainboard/samsung/lumpy/romstage.c b/src/mainboard/samsung/lumpy/romstage.c index 8c5d5ac..0f0da0f 100644 --- a/src/mainboard/samsung/lumpy/romstage.c +++ b/src/mainboard/samsung/lumpy/romstage.c @@ -317,7 +317,7 @@ void main(unsigned long bist)
MCHBAR16(SSKPD) = 0xCAFE;
- cbmem_was_initted = !cbmem_initialize(); + cbmem_was_initted = !cbmem_recovery(boot_mode==2); if (boot_mode!=2) save_mrc_data(&pei_data)
diff --git a/src/mainboard/samsung/stumpy/romstage.c b/src/mainboard/samsung/stumpy/romstage.c index a96b301..24d3c74 100644 --- a/src/mainboard/samsung/stumpy/romstage.c +++ b/src/mainboard/samsung/stumpy/romstage.c @@ -324,7 +324,7 @@ void main(unsigned long bist) post_code(0x3e);
MCHBAR16(SSKPD) = 0xCAFE; - cbmem_was_initted = !cbmem_initialize(); + cbmem_was_initted = !cbmem_recovery(boot_mode==2); if (boot_mode!=2) save_mrc_data(&pei_data)
diff --git a/src/mainboard/via/epia-m850/romstage.c b/src/mainboard/via/epia-m850/romstage.c index 39f4253..262bee7 100644 --- a/src/mainboard/via/epia-m850/romstage.c +++ b/src/mainboard/via/epia-m850/romstage.c @@ -95,7 +95,7 @@ void main(unsigned long bist)
/* We got RAM working, now we can write the timestamps to RAM */ #if CONFIG_EARLY_CBMEM_INIT - cbmem_initialize(); + cbmem_recovery(0); #endif timestamp_add_now(TS_END_ROMSTAGE); /* FIXME: See if this is needed or take this out please */ diff --git a/src/northbridge/intel/nehalem/raminit.c b/src/northbridge/intel/nehalem/raminit.c index 19af3bb..c7acd47 100644 --- a/src/northbridge/intel/nehalem/raminit.c +++ b/src/northbridge/intel/nehalem/raminit.c @@ -1699,7 +1699,7 @@ static void save_timings(struct raminfo *info) train.reg_10b = read_1d0(0x10b, 6);
/* Save the MRC S3 restore data to cbmem */ - cbmem_initialize(); + cbmem_recovery(0); mrcdata = cbmem_add (CBMEM_ID_MRCDATA, output_len + sizeof(struct mrc_data_container));