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core range and set_init_ram_access 

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2294 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Yinghai Lu 2006-05-04 00:58:14 +00:00
parent b73fd56488
commit 52377deec0
2 changed files with 25 additions and 54 deletions
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45
src/cpu/amd/car/clear_init_ram.c
View File

@ -11,49 +11,8 @@ static void __attribute__((noinline)) clear_init_ram(void)
}
/* be warned, this file will be used by core other than core 0/node 0 or core0/node0 when cpu_reset*/
static inline __attribute__((always_inline)) void set_init_ram_access(void)
static void set_init_ram_access(void)
{
__asm__ volatile (
"pushl %%ecx\n\t"
"pushl %%edx\n\t"
"pushl %%eax\n\t"
/* enable caching for first 1M using variable mtrr */
"movl $0x200, %%ecx\n\t"
"xorl %%edx, %%edx\n\t"
"movl $(0 | 6), %%eax\n\t"
// "movl $(0 | MTRR_TYPE_WRBACK), %%eax\n\t"
"wrmsr\n\t"
"movl $0x201, %%ecx\n\t"
"movl $0x0000000f, %%edx\n\t"
#if CONFIG_USE_INIT
"movl %%esi, %%eax\n\t"
#else
"movl $((~(( 0 + (CONFIG_LB_MEM_TOPK<<10) ) -1)) | 0x800), %%eax\n\t"
#endif
"wrmsr\n\t"
#if 0
/* enable caching for 64K using fixed mtrr */
"movl $0x26e, %%ecx\n\t" /* fix4k_f0000*/
"movl $0x1e1e1e1e, %%eax\n\t" /* WB MEM type */
"movl %%eax, %%edx\n\t"
"wrmsr\n\t"
"movl $0x26f, %%ecx\n\t" /* fix4k_f8000*/
"wrmsr\n\t"
#endif
"popl %%eax\n\t"
"popl %%edx\n\t"
"popl %%ecx\n\t"
:
:
#if CONFIG_USE_INIT
"S"((~(( 0 + (CONFIG_LB_MEM_TOPK<<10) ) -1)) | 0x800)
#endif
);
set_var_mtrr(0, 0x00000000, CONFIG_LB_MEM_TOPK << 10, MTRR_TYPE_WRBACK);
}

34
src/cpu/amd/model_fxx/init_cpus.c
View File

@ -10,7 +10,10 @@
typedef void (*process_ap_t)(unsigned apicid, void *gp);
static void for_each_ap(unsigned bsp_apicid, unsigned core0_only, process_ap_t process_ap, void *gp)
//core_range = 0 : all cores
//core range = 1 : core 0 only
//core range = 2 : cores other than core0
static void for_each_ap(unsigned bsp_apicid, unsigned core_range, process_ap_t process_ap, void *gp)
{
// here assume the OS don't change our apicid
unsigned ap_apicid;
@ -49,16 +52,20 @@ static void for_each_ap(unsigned bsp_apicid, unsigned core0_only, process_ap_t p
}
siblings = j;
unsigned jj;
unsigned jstart, jend;
if(e0_later_single_core || disable_siblings || core0_only) {
jj = 0;
} else {
jj = siblings;
}
for(j=0; j<=jj; j++) {
if(core_range == 2) {
jstart = 1;
}
if(e0_later_single_core || disable_siblings || (core_range==1)) {
jend = 0;
} else {
jend = siblings;
}
for(j=jstart; j<=jend; j++) {
ap_apicid = i * (nb_cfg_54?(siblings+1):1) + j * (nb_cfg_54?1:8);
@ -145,6 +152,11 @@ static void wait_all_aps_started(unsigned bsp_apicid)
for_each_ap(bsp_apicid, 0 , wait_ap_started, (void *)0);
}
static void wait_all_other_cores_started(unsigned bsp_apicid)
{
for_each_ap(bsp_apicid, 2 , wait_ap_started, (void *)0);
}
static void allow_all_aps_stop(unsigned bsp_apicid)
{
lapic_write(LAPIC_MSG_REG, (bsp_apicid<<24) | 0x44); // allow aps to stop
@ -243,7 +255,7 @@ static unsigned init_cpus(unsigned cpu_init_detectedx)
wait_cpu_state(bsp_apicid, 0x44);
lapic_write(LAPIC_MSG_REG, (apicid<<24) | 0x44); // bsp can not check it before stop_this_cpu
set_init_ram_access(); //inline
set_init_ram_access();
disable_cache_as_ram(); // inline
stop_this_cpu(); // inline, it will stop all cores except node0/core0 the bsp ....
}