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ACPI S3 support: Add acpi_s3_resume_allowed()

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Add this to reduce the amount of preprocessor conditionals used in the source,
compiler currently resolves this to a constant.

Once we have gone through all #if CONFIG_HAVE_ACPI_RESUME cases, we may change
the implementation to enable/disable S3 support runtime.

Change-Id: I0e2d9f81e2ab87c2376a04fab38a7c951cac7a07
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/6060
Tested-by: build bot (Jenkins)
This commit is contained in:
Kyösti Mälkki
2014-06-17 15:41:37 +03:00
parent b3594ab489
commit 2ca2afe760
4 changed files with 31 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
src/arch/x86/boot/acpi.c
View File

@@ -756,17 +756,17 @@ extern unsigned int __wakeup_size;
void acpi_jump_to_wakeup(void *vector)
{
#if CONFIG_RELOCATABLE_RAMSTAGE
u32 acpi_backup_memory = 0;
#else
u32 acpi_backup_memory = (u32)cbmem_find(CBMEM_ID_RESUME);
if (!acpi_backup_memory) {
printk(BIOS_WARNING, "ACPI: Backup memory missing. "
"No S3 resume.\n");
return;
if (HIGH_MEMORY_SAVE && acpi_s3_resume_allowed()) {
acpi_backup_memory = (u32)cbmem_find(CBMEM_ID_RESUME);
if (!acpi_backup_memory) {
printk(BIOS_WARNING, "ACPI: Backup memory missing. "
"No S3 resume.\n");
return;
}
}
#endif
#if CONFIG_SMP
// FIXME: This should go into the ACPI backup memory, too. No pork sausages.

14
src/arch/x86/boot/tables.c
View File

@@ -192,19 +192,15 @@ void write_tables(void)
post_code(0x9e);
#if CONFIG_HAVE_ACPI_RESUME
/* Only add CBMEM_ID_RESUME when the ramstage isn't relocatable. */
#if !CONFIG_RELOCATABLE_RAMSTAGE
/* Let's prepare the ACPI S3 Resume area now already, so we can rely on
* it begin there during reboot time. We don't need the pointer, nor
* the result right now. If it fails, ACPI resume will be disabled.
*/
cbmem_add(CBMEM_ID_RESUME, HIGH_MEMORY_SAVE);
#endif
#if CONFIG_NORTHBRIDGE_AMD_AGESA_FAMILY14 || CONFIG_NORTHBRIDGE_AMD_AGESA_FAMILY15_TN || CONFIG_NORTHBRIDGE_AMD_AGESA_FAMILY16_KB
cbmem_add(CBMEM_ID_RESUME_SCRATCH, CONFIG_HIGH_SCRATCH_MEMORY_SIZE);
#endif
#endif
if (HIGH_MEMORY_SAVE && acpi_s3_resume_allowed())
cbmem_add(CBMEM_ID_RESUME, HIGH_MEMORY_SAVE);
if (HIGH_MEMORY_SCRATCH && acpi_s3_resume_allowed())
cbmem_add(CBMEM_ID_RESUME_SCRATCH, HIGH_MEMORY_SCRATCH);
#define MAX_COREBOOT_TABLE_SIZE (32 * 1024)
post_code(0x9d);

5
src/arch/x86/include/arch/acpi.h
View File

@@ -584,4 +584,9 @@ void generate_cpu_entries(void);
#endif /* CONFIG_GENERATE_ACPI_TABLES */
static inline int acpi_s3_resume_allowed(void)
{
return IS_ENABLED(CONFIG_HAVE_ACPI_RESUME);
}
#endif /* __ASM_ACPI_H */