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| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2016-06-17 22:54:22 +0300 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2016-11-11 18:42:07 +0100 |
| commit | 9b9915284f5070c6f664fa36495ae831e95ea819 (patch) | |
| tree | 3b078aeab72924c2a0981d0c06adc17d8afe3573 | |
| parent | 5ecc41b0c9226486da71d6aa95a505877f0fdaeb (diff) | |
| download | coreboot-9b9915284f5070c6f664fa36495ae831e95ea819.tar.xz | |
intel/sandybridge: Use common ACPI S3 recovery
Fix regression, S3 resume not working on sandy/ivy after commit
9d6f365 ACPI S3: Remove HIGH_MEMORY_SAVE where possible
There is some 20ms delay with ACPI S3 wakeup time due to MTRR setup
being done after the backup copy. Moving to RELOCATABLE_RAMSTAGE fixes
this delay by removing need of this backup entirely.
Change-Id: Ib72ff914f5dfef8611f5f6cf9687495779013b02
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/15248
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
| -rw-r--r-- | src/cpu/intel/model_206ax/cache_as_ram.inc | 23 | ||||
| -rw-r--r-- | src/northbridge/intel/sandybridge/early_init.c | 10 | ||||
| -rw-r--r-- | src/northbridge/intel/sandybridge/sandybridge.h | 6 |
3 files changed, 2 insertions, 37 deletions
diff --git a/src/cpu/intel/model_206ax/cache_as_ram.inc b/src/cpu/intel/model_206ax/cache_as_ram.inc index 6702155494..cc52637076 100644 --- a/src/cpu/intel/model_206ax/cache_as_ram.inc +++ b/src/cpu/intel/model_206ax/cache_as_ram.inc @@ -17,8 +17,6 @@ #include <cpu/x86/mtrr.h> #include <cpu/x86/cache.h> #include <cpu/x86/post_code.h> -#include <arch/acpi.h> -#include "northbridge/intel/sandybridge/sandybridge.h" /* The full cache-as-ram size includes the cache-as-ram portion from coreboot * and the space used by the reference code. These 2 values combined should @@ -284,27 +282,6 @@ before_romstage: post_code(0x3c) -#if CONFIG_HAVE_ACPI_RESUME - movl CBMEM_BOOT_MODE, %eax - cmpl $0x2, %eax // Resume? - jne __acpi_resume_backup_done - - /* copy 1MB - 64K to high tables ram_base to prevent memory corruption - * through stage 2. We could keep stuff like stack and heap in high - * tables memory completely, but that's a wonderful clean up task for - * another day. - */ - cld - movl $CONFIG_RAMBASE, %esi - movl CBMEM_RESUME_BACKUP, %edi - movl $HIGH_MEMORY_SAVE >> 2, %ecx - rep movsl - -__acpi_resume_backup_done: -#endif - - post_code(0x3d) - __main: post_code(POST_PREPARE_RAMSTAGE) cld /* Clear direction flag. */ diff --git a/src/northbridge/intel/sandybridge/early_init.c b/src/northbridge/intel/sandybridge/early_init.c index 779f29befd..a013ec3707 100644 --- a/src/northbridge/intel/sandybridge/early_init.c +++ b/src/northbridge/intel/sandybridge/early_init.c @@ -233,15 +233,9 @@ void northbridge_romstage_finalize(int s3resume) * this is not a resume. In that case we just create the cbmem toc. */ - *(u32 *)CBMEM_BOOT_MODE = 0; - *(u32 *)CBMEM_RESUME_BACKUP = 0; - if (s3resume) { - void *resume_backup_memory = cbmem_find(CBMEM_ID_RESUME); - if (resume_backup_memory) { - *(u32 *)CBMEM_BOOT_MODE = 2; - *(u32 *)CBMEM_RESUME_BACKUP = (u32)resume_backup_memory; - } + acpi_prepare_for_resume(); + /* Magic for S3 resume */ pci_write_config32(PCI_DEV(0, 0x00, 0), SKPAD, 0xcafed00d); } else { diff --git a/src/northbridge/intel/sandybridge/sandybridge.h b/src/northbridge/intel/sandybridge/sandybridge.h index 972ed9f0a2..e737e50f65 100644 --- a/src/northbridge/intel/sandybridge/sandybridge.h +++ b/src/northbridge/intel/sandybridge/sandybridge.h @@ -196,12 +196,6 @@ #define DMIDRCCFG 0xeb4 /* 32bit */ -/* Delegation of resume backup memory so we don't have to - * (slowly) handle backing up OS memory in romstage.c - */ -#define CBMEM_BOOT_MODE 0x610 -#define CBMEM_RESUME_BACKUP 0x614 - #ifndef __ASSEMBLER__ static inline void barrier(void) { asm("" ::: "memory"); } |