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Following patch adds necessary hooks and as well the compile time checks for

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ACPI suspend/resume.

The memory cleared now is just the coreboot memory not the low memory.

Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Acked-by: Peter Stuge <peter@stuge.se>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4099 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Rudolf Marek
2009-04-13 17:57:44 +00:00
parent 3f04dade05
commit a572f83e71
4 changed files with 44 additions and 3 deletions
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3
src/cpu/amd/car/clear_init_ram.c
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@ -6,8 +6,7 @@ static void __attribute__((noinline)) clear_init_ram(void)
// gcc 3.4.5 will inline the copy_and_run and clear_init_ram in post_cache_as_ram
// will reuse %edi as 0 from clear_memory for copy_and_run part, actually it is increased already
// so noline clear_init_ram
clear_memory(0, ((CONFIG_LB_MEM_TOPK<<10) - DCACHE_RAM_SIZE));
clear_memory( _RAMBASE, (CONFIG_LB_MEM_TOPK << 10) - _RAMBASE - DCACHE_RAM_SIZE);
}
/* be warned, this file will be used by core other than core 0/node 0 or core0/node0 when cpu_reset*/

17
src/cpu/x86/lapic/lapic_cpu_init.c
View File

@ -31,6 +31,12 @@ static unsigned long get_valid_start_eip(unsigned long orig_start_eip)
}
#endif
#if HAVE_ACPI_RESUME == 1
char *lowmem_backup;
char *lowmem_backup_ptr;
int lowmem_backup_size;
#endif
static void copy_secondary_start_to_1m_below(void)
{
#if _RAMBASE >= 0x100000
@ -45,6 +51,17 @@ static void copy_secondary_start_to_1m_below(void)
start_eip = get_valid_start_eip((unsigned long)_secondary_start);
code_size = (unsigned long)_secondary_start_end - (unsigned long)_secondary_start;
#if HAVE_ACPI_RESUME == 1
/* need to save it for RAM resume */
lowmem_backup_size = code_size;
lowmem_backup = malloc(code_size);
lowmem_backup_ptr = (unsigned char *)start_eip;
if (lowmem_backup == NULL)
die("Out of backup memory\n");
memcpy(lowmem_backup, lowmem_backup_ptr, lowmem_backup_size);
#endif
/* copy the _secondary_start to the ram below 1M*/
memcpy((unsigned char *)start_eip, (unsigned char *)_secondary_start, code_size);