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Clean up whitespace and comments style. (trivial) 

Signed-off-by: Marc Jones <marc.jones@amd.com>
Acked-by: Marc Jones <marc.jones@amd.com>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3480 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Marc Jones 2008-08-07 22:00:51 +00:00
parent 88ad6b0f91
commit a2c951edf7
1 changed files with 257 additions and 239 deletions
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496
src/cpu/amd/model_fxx/fidvid.c
View File

@ -6,8 +6,8 @@
#define K8_SET_FIDVID_STORE_AP_APICID_AT_FIRST 1 #define K8_SET_FIDVID_STORE_AP_APICID_AT_FIRST 1
#ifndef SB_VFSMAF #ifndef SB_VFSMAF
#define SB_VFSMAF 1 #define SB_VFSMAF 1
#endif #endif
#define FX_SUPPORT 1 #define FX_SUPPORT 1
@ -16,10 +16,10 @@ static inline void print_debug_fv(const char *str, unsigned val)
{ {
#if K8_SET_FIDVID_DEBUG == 1 #if K8_SET_FIDVID_DEBUG == 1
#if CONFIG_USE_PRINTK_IN_CAR #if CONFIG_USE_PRINTK_IN_CAR
printk_debug("%s%x\r\n", str, val); printk_debug("%s%x\r\n", str, val);
#else #else
print_debug(str); print_debug_hex32(val); print_debug("\r\n"); print_debug(str); print_debug_hex32(val); print_debug("\r\n");
#endif #endif
#endif #endif
} }
@ -27,10 +27,10 @@ static inline void print_debug_fv_8(const char *str, unsigned val)
{ {
#if K8_SET_FIDVID_DEBUG == 1 #if K8_SET_FIDVID_DEBUG == 1
#if CONFIG_USE_PRINTK_IN_CAR #if CONFIG_USE_PRINTK_IN_CAR
printk_debug("%s%02x\r\n", str, val); printk_debug("%s%02x\r\n", str, val);
#else #else
print_debug(str); print_debug_hex8(val); print_debug("\r\n"); print_debug(str); print_debug_hex8(val); print_debug("\r\n");
#endif #endif
#endif #endif
} }
@ -38,10 +38,10 @@ static inline void print_debug_fv_64(const char *str, unsigned val, unsigned val
{ {
#if K8_SET_FIDVID_DEBUG == 1 #if K8_SET_FIDVID_DEBUG == 1
#if CONFIG_USE_PRINTK_IN_CAR #if CONFIG_USE_PRINTK_IN_CAR
printk_debug("%s%x%x\r\n", str, val, val2); printk_debug("%s%x%x\r\n", str, val, val2);
#else #else
print_debug(str); print_debug_hex32(val); print_debug_hex32(val2); print_debug("\r\n"); print_debug(str); print_debug_hex32(val); print_debug_hex32(val2); print_debug("\r\n");
#endif #endif
#endif #endif
} }
@ -52,27 +52,29 @@ static void enable_fid_change(void)
unsigned nodes; unsigned nodes;
int i; int i;
nodes = ((pci_read_config32(PCI_DEV(0, 0x18, 0), 0x60)>>4) & 7) + 1; nodes = ((pci_read_config32(PCI_DEV(0, 0x18, 0), 0x60) >> 4) & 7) + 1;
for(i=0; i<nodes; i++) { for (i = 0; i < nodes; i++) {
dword = pci_read_config32(PCI_DEV(0, 0x18+i, 3), 0xd8); dword = pci_read_config32(PCI_DEV(0, 0x18+i, 3), 0xd8);
dword &= 0x8ff00000; dword &= 0x8ff00000;
dword |= (2<<28) | (0x02710); dword |= (2 << 28) | (0x02710);
pci_write_config32(PCI_DEV(0, 0x18+i, 3), 0xd8, dword); pci_write_config32(PCI_DEV(0, 0x18+i, 3), 0xd8, dword);
dword = 0x04e2a707; dword = 0x04e2a707;
pci_write_config32(PCI_DEV(0, 0x18+i, 3), 0xd4, dword); pci_write_config32(PCI_DEV(0, 0x18+i, 3), 0xd4, dword);
/* disable the DRAM interface at first, it will be enabled
* by raminit again */
dword = pci_read_config32(PCI_DEV(0, 0x18+i, 2), 0x94); dword = pci_read_config32(PCI_DEV(0, 0x18+i, 2), 0x94);
dword |= (1<<14);// disable the DRAM interface at first, it will be enabled by raminit again dword |= (1 << 14);
pci_write_config32(PCI_DEV(0, 0x18+i, 2), 0x94, dword); pci_write_config32(PCI_DEV(0, 0x18+i, 2), 0x94, dword);
dword = 0x23070700; //enable FID/VID change dword = 0x23070700; /* enable FID/VID change */
// dword = 0x00070000; //enable FID/VID change // dword = 0x00070000; /* enable FID/VID change */
pci_write_config32(PCI_DEV(0, 0x18+i, 3), 0x80, dword); pci_write_config32(PCI_DEV(0, 0x18+i, 3), 0x80, dword);
dword = 0x00132113; dword = 0x00132113;
pci_write_config32(PCI_DEV(0, 0x18+i, 3), 0x84, dword); pci_write_config32(PCI_DEV(0, 0x18+i, 3), 0x84, dword);
} }
} }
@ -80,48 +82,48 @@ static void enable_fid_change(void)
#if K8_SET_FIDVID_ONE_BY_ONE == 0 #if K8_SET_FIDVID_ONE_BY_ONE == 0
static unsigned set_fidvid_without_init(unsigned fidvid) static unsigned set_fidvid_without_init(unsigned fidvid)
{ {
msr_t msr;
uint32_t vid;
uint32_t fid;
msr_t msr; fid = (fidvid >> 8) & 0x3f;
uint32_t vid; vid = (fidvid >> 16) & 0x3f;
uint32_t fid;
fid = (fidvid >> 8) & 0x3f; /* set new FID/VID */
vid = (fidvid >> 16) & 0x3f; msr.hi = 1;
msr.lo = (vid<<8) | fid;
// set new FID/VID wrmsr(0xc0010041, msr);
msr.hi = 1; return fidvid;
msr.lo = (vid<<8) | fid;
wrmsr(0xc0010041, msr);
return fidvid;
} }
#endif #endif
static unsigned set_fidvid(unsigned apicid, unsigned fidvid, int showmessage) static unsigned set_fidvid(unsigned apicid, unsigned fidvid, int showmessage)
{ {
//for (cur, new) there is one <1600MHz x8 to find out next_fid /* for (cur, new) there is one <1600MHz x8 to find out next_fid */
static const uint8_t next_fid_a[] = { static const uint8_t next_fid_a[] = {
/* x4 x5 x6 x7 x8 x9 x10 x11 x12 x13 x14 x15 */ // 0:x4, 2:x5....BASE=4, MIN=4, MAX=25, INC=2 result = (xX-BASE)*INC /* x4 x5 x6 x7 x8 x9 x10 x11 x12 x13 x14 x15 */
/* x4 */ 0, 9, 9, 8, 9, 9, 9, 9, 9, 9, 9, 9, /* x4 */ 0, 9, 9, 8, 9, 9, 9, 9, 9, 9, 9, 9,
/* x5 */ 9, 0, 11, 11, 9, 9, 10, 11, 11, 11, 11, 11, /* x5 */ 9, 0, 11, 11, 9, 9, 10, 11, 11, 11, 11, 11,
/* x6 */ 11, 11, 0, 13, 11, 11, 11, 11, 12, 13, 13, 13, /* x6 */ 11, 11, 0, 13, 11, 11, 11, 11, 12, 13, 13, 13,
/* x7 */ 13, 13, 13, 0, 13, 13, 13, 13, 13, 13, 14, 15, /* x7 */ 13, 13, 13, 0, 13, 13, 13, 13, 13, 13, 14, 15,
/* x8 */ 4, 9, 9, 9, 0, 9, 9, 9, 9, 9, 9, 9, /* x8 */ 4, 9, 9, 9, 0, 9, 9, 9, 9, 9, 9, 9,
/* x9 */ 4, 5, 10, 10, 8, 0, 0, 0, 0, 0, 0, 0, /* x9 */ 4, 5, 10, 10, 8, 0, 0, 0, 0, 0, 0, 0,
/*x10 */ 9, 5, 11, 11, 9, 0, 0, 0, 0, 0, 0, 0, /*x10 */ 9, 5, 11, 11, 9, 0, 0, 0, 0, 0, 0, 0,
/*x11 */ 10, 5, 6, 12, 10, 0, 0, 0, 0, 0, 0, 0, /*x11 */ 10, 5, 6, 12, 10, 0, 0, 0, 0, 0, 0, 0,
/*x12 */ 11, 11, 6, 13, 11, 0, 0, 0, 0, 0, 0, 0, /*x12 */ 11, 11, 6, 13, 11, 0, 0, 0, 0, 0, 0, 0,
/*x13 */ 12, 12, 6, 7, 12, 0, 0, 0, 0, 0, 0, 0, /*x13 */ 12, 12, 6, 7, 12, 0, 0, 0, 0, 0, 0, 0,
/*x14 */ 13, 13, 13, 7, 13, 0, 0, 0, 0, 0, 0, 0, /*x14 */ 13, 13, 13, 7, 13, 0, 0, 0, 0, 0, 0, 0,
/*x15 */ 14, 14, 14, 7, 14, 0, 0, 0, 0, 0, 0, 0, /*x15 */ 14, 14, 14, 7, 14, 0, 0, 0, 0, 0, 0, 0,
/* 0:x4, 2:x5....BASE=4, MIN=4, MAX=25, INC=2 result = (xX-BASE)*INC */
}; };
msr_t msr; msr_t msr;
uint32_t vid; uint32_t vid;
uint32_t fid; uint32_t fid;
uint32_t vid_max; uint32_t vid_max;
uint32_t fid_max; uint32_t fid_max;
uint32_t vid_cur; uint32_t vid_cur;
uint32_t fid_cur; uint32_t fid_cur;
unsigned apicidx; unsigned apicidx;
int steps; int steps;
@ -129,13 +131,13 @@ static unsigned set_fidvid(unsigned apicid, unsigned fidvid, int showmessage)
apicidx = lapicid(); apicidx = lapicid();
if(apicid!=apicidx) { if (apicid != apicidx) {
#if CONFIG_USE_PRINTK_IN_CAR #if CONFIG_USE_PRINTK_IN_CAR
printk_err("wrong apicid, we want change %x, but it is %x\r\n", apicid, apicidx); printk_err("wrong apicid, we want change %x, but it is %x\r\n", apicid, apicidx);
#else #else
print_err("wrong apicid, we want change "); print_err_hex8(apicid); print_err(" but it is "); print_err_hex8(apicidx); print_err("\r\n"); print_err("wrong apicid, we want change "); print_err_hex8(apicid); print_err(" but it is "); print_err_hex8(apicidx); print_err("\r\n");
#endif #endif
return fidvid; return fidvid;
} }
fid = (fidvid >> 8) & 0x3f; fid = (fidvid >> 8) & 0x3f;
@ -143,116 +145,122 @@ static unsigned set_fidvid(unsigned apicid, unsigned fidvid, int showmessage)
msr = rdmsr(0xc0010042); msr = rdmsr(0xc0010042);
vid_cur = msr.hi & 0x3f; vid_cur = msr.hi & 0x3f;
fid_cur = msr.lo & 0x3f; fid_cur = msr.lo & 0x3f;
if((vid_cur==vid) && (fid_cur==fid)) return fidvid; if ((vid_cur==vid) && (fid_cur==fid))
return fidvid;
vid_max = (msr.hi>>(48-32)) & 0x3f; vid_max = (msr.hi>>(48-32)) & 0x3f;
fid_max = ((msr.lo>>16) & 0x3f); //max fid fid_max = ((msr.lo>>16) & 0x3f); /* max fid */
#if FX_SUPPORT #if FX_SUPPORT
if(fid_max>=((25-4)*2)) { // FX max fid is 5G if (fid_max>=((25-4)*2)) { /* FX max fid is 5G */
fid_max = ((msr.lo>>8) & 0x3f) + 5*2; // max FID is min fid + 1G fid_max = ((msr.lo >> 8) & 0x3f) + 5 * 2; /* max FID is min fid + 1G */
if(fid_max >= ((25-4)*2)) { if (fid_max >= ((25-4) * 2)) {
fid_max = (10-4)*2; // hard set to 2G fid_max = (10-4) * 2; /* hard set to 2G */
} }
} }
#endif #endif
//set vid to max /* set vid to max */
msr.hi = 1; msr.hi = 1;
msr.lo = (vid_max<<8) | (fid_cur); msr.lo = (vid_max << 8) | (fid_cur);
#if SB_VFSMAF == 1 #if SB_VFSMAF == 1
msr.lo |= (1<<16); // init changes msr.lo |= (1<<16); /* init changes */
#endif #endif
wrmsr(0xc0010041, msr); wrmsr(0xc0010041, msr);
#if SB_VFSMAF == 0 #if SB_VFSMAF == 0
ldtstop_sb(); ldtstop_sb();
#endif #endif
for(loop=0;loop<100000;loop++){
for (loop=0;loop<100000;loop++){
msr = rdmsr(0xc0010042); msr = rdmsr(0xc0010042);
if(!(msr.lo & (1<<31))) break; if (!(msr.lo & (1<<31)))
} break;
}
vid_cur = msr.hi & 0x3f; vid_cur = msr.hi & 0x3f;
steps = 8; //?? steps = 8; //??
while((fid_cur!=fid) && (steps-->0)) { while ((fid_cur != fid) && (steps-- > 0)) {
uint32_t fid_temp; uint32_t fid_temp;
if((fid_cur > (8-4)*2) && (fid> (8-4)*2)) { if ((fid_cur > (8-4)*2) && (fid> (8-4)*2)) {
if(fid_cur<fid) { if (fid_cur<fid) {
fid_temp = fid_cur + 2; fid_temp = fid_cur + 2;
} else { } else {
fid_temp = fid_cur - 2; fid_temp = fid_cur - 2;
} }
} } else {
else { //there is one < 8, So we need to lookup the table to find the fid_cur /* there is one < 8, So we need to lookup the table to
* find the fid_cur */
int temp; int temp;
temp = next_fid_a[(fid_cur/2)*12+(fid/2)]; temp = next_fid_a[(fid_cur/2)*12+(fid/2)];
if(temp <= 0) break; if (temp <= 0) break;
fid_temp = (temp-4) * 2; fid_temp = (temp-4) * 2;
} }
if(fid_temp>fid_max) break; if (fid_temp > fid_max)
break;
fid_cur = fid_temp; fid_cur = fid_temp;
//set target fid /* set target fid */
msr.hi = (100000/5); msr.hi = (100000/5);
msr.lo = (vid_cur<<8) | fid_cur; msr.lo = (vid_cur << 8) | fid_cur;
#if SB_VFSMAF == 1 #if SB_VFSMAF == 1
msr.lo |= (1<<16); // init changes msr.lo |= (1 << 16); /* init changes */
#endif #endif
wrmsr(0xc0010041, msr); wrmsr(0xc0010041, msr);
#if SB_VFSMAF == 0 #if SB_VFSMAF == 0
ldtstop_sb(); ldtstop_sb();
#endif #endif
#if K8_SET_FIDVID_DEBUG == 1 #if K8_SET_FIDVID_DEBUG == 1
if(showmessage) { if (showmessage) {
print_debug_fv_8("\tapicid in set_fidvid = ", apicid); print_debug_fv_8("\tapicid in set_fidvid = ", apicid);
print_debug_fv_64("ctrl msr fid, vid ", msr.hi, msr.lo); print_debug_fv_64("ctrl msr fid, vid ", msr.hi, msr.lo);
} }
#endif #endif
for(loop=0;loop<100000;loop++){ for (loop = 0; loop < 100000; loop++){
msr = rdmsr(0xc0010042); msr = rdmsr(0xc0010042);
if(!(msr.lo & (1<<31))) break; if (!(msr.lo & (1 << 31)))
} break;
fid_cur = msr.lo & 0x3f; }
fid_cur = msr.lo & 0x3f;
#if K8_SET_FIDVID_DEBUG == 1 #if K8_SET_FIDVID_DEBUG == 1
if(showmessage) { if (showmessage) {
print_debug_fv_64("status msr fid, vid ", msr.hi, msr.lo); print_debug_fv_64("status msr fid, vid ", msr.hi, msr.lo);
} }
#endif #endif
} }
//set vid to final /* set vid to final */
msr.hi = 1; msr.hi = 1;
msr.lo = (vid<<8) | (fid_cur); msr.lo = (vid << 8) | (fid_cur);
#if SB_VFSMAF == 1 #if SB_VFSMAF == 1
msr.lo |= (1<<16); // init changes msr.lo |= (1 << 16); // init changes
#endif #endif
wrmsr(0xc0010041, msr); wrmsr(0xc0010041, msr);
#if SB_VFSMAF == 0 #if SB_VFSMAF == 0
ldtstop_sb(); ldtstop_sb();
#endif #endif
for(loop=0;loop<100000;loop++){ for (loop = 0; loop < 100000; loop++){
msr = rdmsr(0xc0010042); msr = rdmsr(0xc0010042);
if(!(msr.lo & (1<<31))) break; if (!(msr.lo & (1 << 31)))
} break;
vid_cur = msr.hi & 0x3f; }
vid_cur = msr.hi & 0x3f;
fidvid = (vid_cur<< 16) | (fid_cur<<8); fidvid = (vid_cur << 16) | (fid_cur << 8);
if(showmessage) { if (showmessage) {
if(vid!=vid_cur) { if (vid!=vid_cur) {
print_err("set vid failed for apicid ="); print_err_hex8(apicidx); print_err("\r\n"); print_err("set vid failed for apicid ="); print_err_hex8(apicidx); print_err("\r\n");
} }
if(fid!=fid_cur) { if (fid!=fid_cur) {
print_err("set fid failed for apicid ="); print_err_hex8(apicidx); print_err("\r\n"); print_err("set fid failed for apicid ="); print_err_hex8(apicidx); print_err("\r\n");
} }
} }
@ -263,170 +271,178 @@ static unsigned set_fidvid(unsigned apicid, unsigned fidvid, int showmessage)
static void init_fidvid_ap(unsigned bsp_apicid, unsigned apicid) static void init_fidvid_ap(unsigned bsp_apicid, unsigned apicid)
{ {
uint32_t send; uint32_t send;
uint32_t readback = 0; uint32_t readback = 0;
unsigned timeout = 1; unsigned timeout = 1;
msr_t msr; msr_t msr;
uint32_t vid_cur; uint32_t vid_cur;
uint32_t fid_cur; uint32_t fid_cur;
uint32_t fid_max; uint32_t fid_max;
int loop; int loop;
msr = rdmsr(0xc0010042); msr = rdmsr(0xc0010042);
fid_max = ((msr.lo>>16) & 0x3f); //max fid fid_max = ((msr.lo >> 16) & 0x3f); /* max fid */
#if FX_SUPPORT #if FX_SUPPORT
if(fid_max>=((25-4)*2)) { // FX max fid is 5G if (fid_max >= ((25-4) * 2)) { /* FX max fid is 5G */
fid_max = ((msr.lo>>8) & 0x3f) + 5*2; // max FID is min fid + 1G fid_max = ((msr.lo>>8) & 0x3f) + 5*2; /* maxFID = minFID + 1G */
if(fid_max >= ((25-4)*2)) { if (fid_max >= ((25-4) * 2)) {
fid_max = (10-4)*2; // hard set to 2G fid_max = (10-4) * 2; // hard set to 2G
} }
} }
#endif #endif
send = fid_max<<8; send = fid_max<<8;
send |= ((msr.hi>>(48-32)) & 0x3f) << 16; //max vid send |= ((msr.hi >> (48-32)) & 0x3f) << 16; /* max vid */
send |= (apicid<<24); // ap apicid send |= (apicid << 24); /* ap apicid */
#if K8_SET_FIDVID_ONE_BY_ONE == 1 #if K8_SET_FIDVID_ONE_BY_ONE == 1
vid_cur = msr.hi & 0x3f; vid_cur = msr.hi & 0x3f;
fid_cur = msr.lo & 0x3f; fid_cur = msr.lo & 0x3f;
// set to current /* set to current */
msr.hi = 1; msr.hi = 1;
msr.lo = (vid_cur<<8) | (fid_cur); msr.lo = (vid_cur << 8) | (fid_cur);
wrmsr(0xc0010041, msr); wrmsr(0xc0010041, msr);
#endif #endif
timeout = wait_cpu_state(bsp_apicid, 1); timeout = wait_cpu_state(bsp_apicid, 1);
if(timeout) { if (timeout) {
print_initcpu8("fidvid_ap_stage1: time out while reading from BSP on ", apicid); print_initcpu8("fidvid_ap_stage1: time out while reading from BSP on ", apicid);
} }
//send signal to BSP about this AP max fid and vid /* send signal to BSP about this AP max fid and vid */
lapic_write(LAPIC_MSG_REG, send | 1); //AP at state 1 that sent our fid and vid /* AP at state 1 that sent our fid and vid */
lapic_write(LAPIC_MSG_REG, send | 1);
// wait_cpu_state(bsp_apicid, 2);// don't need we can use apicid directly // wait_cpu_state(bsp_apicid, 2); /* don't need we can use apicid directly */
loop = 1000000; loop = 1000000;
while(--loop>0) { while (--loop > 0) {
//remote read BSP signal that include vid and fid that need to set /* remote read BSP signal that include vid/fid that need to set */
if(lapic_remote_read(bsp_apicid, LAPIC_MSG_REG, &readback)!=0) continue; if (lapic_remote_read(bsp_apicid, LAPIC_MSG_REG, &readback)!=0)
if(((readback>>24) & 0xff) == apicid) break; // it is this cpu turn continue;
} if (((readback >> 24) & 0xff) == apicid)
break; /* it is this cpu turn */
}
if(loop>0) { if (loop > 0) {
#if K8_SET_FIDVID_ONE_BY_ONE == 1 #if K8_SET_FIDVID_ONE_BY_ONE == 1
readback = set_fidvid(apicid, readback & 0xffff00, 1); // this AP readback = set_fidvid(apicid, readback & 0xffff00, 1); // this AP
#else #else
readback = set_fidvid_without_init(readback & 0xffff00); // this AP readback = set_fidvid_without_init(readback & 0xffff00); // this AP
#endif #endif
//send signal to BSP that this AP fid/vid is set // allow to change state2 is together with apicid /* send signal to BSP that this AP fid/vid is set */
send = (apicid<<24) | (readback & 0x00ffff00); // AP at state that We set the requested fid/vid /* allow to change state2 is together with apicid */
/* AP at state that We set the requested fid/vid */
send = (apicid<<24) | (readback & 0x00ffff00);
} else { } else {
print_initcpu8("fidvid_ap_stage2: time out while reading from BSP on ", apicid); print_initcpu8("fidvid_ap_stage2: time out while reading from BSP on ", apicid);
} }
lapic_write(LAPIC_MSG_REG, send | 2); lapic_write(LAPIC_MSG_REG, send | 2);
timeout = wait_cpu_state(bsp_apicid, 3); timeout = wait_cpu_state(bsp_apicid, 3);
if(timeout) { if (timeout) {
print_initcpu8("fidvid_ap_stage3: time out while reading from BSP on ", apicid); print_initcpu8("fidvid_ap_stage3: time out while reading from BSP on ", apicid);
} }
} }
static unsigned calc_common_fidvid(unsigned fidvid, unsigned fidvidx) static unsigned calc_common_fidvid(unsigned fidvid, unsigned fidvidx)
{ {
/* FIXME: need to check the change path to verify if it is reachable when common fid is small than 1.6G */ /* FIXME: need to check the change path to verify if it is reachable
if((fidvid & 0xff00)<=(fidvidx & 0xff00)) { * when common fid is small than 1.6G */
if ((fidvid & 0xff00) <= (fidvidx & 0xff00)) {
return fidvid; return fidvid;
} }
else { else {
return fidvidx; return fidvidx;
} }
} }
struct fidvid_st { struct fidvid_st {
unsigned common_fidvid; unsigned common_fidvid;
}; };
static void init_fidvid_bsp_stage1(unsigned ap_apicid, void *gp ) static void init_fidvid_bsp_stage1(unsigned ap_apicid, void *gp )
{ {
unsigned readback = 0; unsigned readback = 0;
unsigned timeout = 1; unsigned timeout = 1;
struct fidvid_st *fvp = gp; struct fidvid_st *fvp = gp;
int loop; int loop;
print_debug_fv("state 1: ap_apicid=", ap_apicid);
loop = 1000000; print_debug_fv("state 1: ap_apicid=", ap_apicid);
while(--loop > 0) {
if(lapic_remote_read(ap_apicid, LAPIC_MSG_REG, &readback)!=0) continue; loop = 1000000;
if((readback & 0xff) == 1) { while (--loop > 0) {
timeout = 0; if (lapic_remote_read(ap_apicid, LAPIC_MSG_REG, &readback)!=0)
break; //target ap is in stage 1 continue;
} if ((readback & 0xff) == 1) {
} timeout = 0;
if(timeout) { break; /* target ap is in stage 1 */
print_initcpu8("fidvid_bsp_stage1: time out while reading from ap ", ap_apicid);
return;
} }
}
if (timeout) {
print_initcpu8("fidvid_bsp_stage1: time out while reading from ap ", ap_apicid);
return;
}
print_debug_fv("\treadback=", readback); print_debug_fv("\treadback=", readback);
fvp->common_fidvid = calc_common_fidvid(fvp->common_fidvid, readback & 0xffff00); fvp->common_fidvid = calc_common_fidvid(fvp->common_fidvid, readback & 0xffff00);
print_debug_fv("\tcommon_fidvid=", fvp->common_fidvid);
print_debug_fv("\tcommon_fidvid=", fvp->common_fidvid);
} }
static void init_fidvid_bsp_stage2(unsigned ap_apicid, void *gp) static void init_fidvid_bsp_stage2(unsigned ap_apicid, void *gp)
{ {
unsigned readback = 0; unsigned readback = 0;
unsigned timeout = 1; unsigned timeout = 1;
struct fidvid_st *fvp = gp; struct fidvid_st *fvp = gp;
int loop; int loop;
print_debug_fv("state 2: ap_apicid=", ap_apicid); print_debug_fv("state 2: ap_apicid=", ap_apicid);
lapic_write(LAPIC_MSG_REG, fvp->common_fidvid | (ap_apicid<<24) | 2); // all set to state2 /* all set to state2 */
lapic_write(LAPIC_MSG_REG, fvp->common_fidvid | (ap_apicid<<24) | 2);
loop = 1000000;
while(--loop > 0) {
if(lapic_remote_read(ap_apicid, LAPIC_MSG_REG, &readback)!=0) continue;
if((readback & 0xff) == 2) {
timeout = 0;
break; // target ap is stage 2, and it'd FID has beed set
}
}
if(timeout) { loop = 1000000;
print_initcpu8("fidvid_bsp_stage2: time out while reading from ap ", ap_apicid); while (--loop > 0) {
return; if (lapic_remote_read(ap_apicid, LAPIC_MSG_REG, &readback)!=0)
continue;
if ((readback & 0xff) == 2) {
timeout = 0;
break; /* target ap is stage 2, it's FID has beed set */
} }
}
print_debug_fv("\treadback=", readback); if (timeout) {
print_initcpu8("fidvid_bsp_stage2: time out while reading from ap ", ap_apicid);
return;
}
print_debug_fv("\treadback=", readback);
} }
#if K8_SET_FIDVID_STORE_AP_APICID_AT_FIRST == 1 #if K8_SET_FIDVID_STORE_AP_APICID_AT_FIRST == 1
struct ap_apicid_st { struct ap_apicid_st {
unsigned num; unsigned num;
unsigned apicid[16]; // 8 way dual core need 16 unsigned apicid[16]; /* 8 way dual core need 16 */
/* FIXME: 32 node quad core, may need 128 */ /* FIXME: 32 node quad core, may need 128 */
}; };
static void store_ap_apicid(unsigned ap_apicid, void *gp) static void store_ap_apicid(unsigned ap_apicid, void *gp)
{ {
struct ap_apicid_st *p = gp; struct ap_apicid_st *p = gp;
p->apicid[p->num++] = ap_apicid; p->apicid[p->num++] = ap_apicid;
} }
#endif #endif
static void init_fidvid_bsp(unsigned bsp_apicid) static void init_fidvid_bsp(unsigned bsp_apicid)
{ {
uint32_t vid_max; uint32_t vid_max;
uint32_t fid_max; uint32_t fid_max;
struct fidvid_st fv; struct fidvid_st fv;
@ -435,35 +451,35 @@ static void init_fidvid_bsp(unsigned bsp_apicid)
unsigned i; unsigned i;
#endif #endif
msr_t msr;
msr_t msr; msr = rdmsr(0xc0010042);
msr = rdmsr(0xc0010042); fid_max = ((msr.lo >> 16) & 0x3f); /* max fid */
fid_max = ((msr.lo>>16) & 0x3f); //max fid
#if FX_SUPPORT == 1 #if FX_SUPPORT == 1
if(fid_max>=((25-4)*2)) { // FX max fid is 5G if (fid_max >= ((25-4) * 2)) { /* FX max fid is 5G */
fid_max = ((msr.lo>>8) & 0x3f) + 5*2; // max FID is min fid + 1G fid_max = ((msr.lo >> 8) & 0x3f) + 5*2; /* maxFID = minFID + 1G */
if(fid_max >= ((25-4)*2)) { if (fid_max >= ((25-4) * 2)) {
fid_max = (10-4)*2; // hard set to 2G fid_max = (10-4) * 2; /* hard set to 2G */
} }
} }
#endif #endif
vid_max = ((msr.hi>>(48-32)) & 0x3f); //max vid vid_max = ((msr.hi>>(48-32)) & 0x3f); //max vid
fv.common_fidvid = (fid_max<<8)|(vid_max<<16); fv.common_fidvid = (fid_max << 8)|(vid_max << 16);
// for all APs (We know the APIC ID of all APs even the APIC ID is lifted) /* for all APs (We know the APIC ID of all APs even the APIC ID is lifted)
// remote read from AP about max fid/vid * remote read from AP about max fid/vid */
//let all ap trains to state 1 /* let all ap trains to state 1 */
lapic_write(LAPIC_MSG_REG, (bsp_apicid<<24) | 1); lapic_write(LAPIC_MSG_REG, (bsp_apicid << 24) | 1);
// calculate the common max fid/vid that could be used for all APs and BSP /* calculate the common max fid/vid that could be used for
* all APs and BSP */
#if K8_SET_FIDVID_STORE_AP_APICID_AT_FIRST == 1 #if K8_SET_FIDVID_STORE_AP_APICID_AT_FIRST == 1
ap_apicidx.num = 0; ap_apicidx.num = 0;
for_each_ap(bsp_apicid, K8_SET_FIDVID_CORE0_ONLY, store_ap_apicid, &ap_apicidx); for_each_ap(bsp_apicid, K8_SET_FIDVID_CORE0_ONLY, store_ap_apicid, &ap_apicidx);
for(i=0;i<ap_apicidx.num;i++) { for (i = 0; i < ap_apicidx.num; i++) {
init_fidvid_bsp_stage1(ap_apicidx.apicid[i], &fv); init_fidvid_bsp_stage1(ap_apicidx.apicid[i], &fv);
} }
#else #else
@ -473,20 +489,21 @@ static void init_fidvid_bsp(unsigned bsp_apicid)
#if 0 #if 0
unsigned fid, vid; unsigned fid, vid;
// Can we use max only? So we can only set fid in one around, otherwise we need to set that to max after raminit /* Can we use max only? So we can only set fid in one around,
// set fid vid to DQS training required * otherwise we need to set that to max after raminit */
/* set fid vid to DQS training required */
fid = (fv.common_fidvid >> 8) & 0x3f; fid = (fv.common_fidvid >> 8) & 0x3f;
vid = (fv.common_fidvid >> 16) & 0x3f; vid = (fv.common_fidvid >> 16) & 0x3f;
if(fid>(10-4)*2) { if (fid > (10-4) * 2) {
fid = (10-4)*2; //x10 fid = (10-4) * 2; // x10
} }
if(vid>=0x1f) { if (vid >= 0x1f) {
vid+= 4; //unit is 12.5mV vid += 4; /* unit is 12.5mV */
} else { } else {
vid+= 2; //unit is 25mV vid += 2; /* unit is 25mV */
} }
fv.common_fidvid = (fid<<8) | (vid<<16); fv.common_fidvid = (fid<<8) | (vid<<16);
@ -494,40 +511,41 @@ static void init_fidvid_bsp(unsigned bsp_apicid)
#endif #endif
#if K8_SET_FIDVID_ONE_BY_ONE == 1 #if K8_SET_FIDVID_ONE_BY_ONE == 1
// set BSP fid and vid /* set BSP fid and vid */
print_debug_fv("bsp apicid=", bsp_apicid); print_debug_fv("bsp apicid=", bsp_apicid);
fv.common_fidvid = set_fidvid(bsp_apicid, fv.common_fidvid, 1); fv.common_fidvid = set_fidvid(bsp_apicid, fv.common_fidvid, 1);
print_debug_fv("common_fidvid=", fv.common_fidvid); print_debug_fv("common_fidvid=", fv.common_fidvid);
#endif #endif
//for all APs ( We know the APIC ID of all AP even the APIC ID is lifted) /* For all APs ( We know the APIC ID of all AP even the APIC ID is lifted)
// send signal to the AP it could change it's fid/vid * send signal to the AP it could change it's fid/vid */
// remote read singnal from AP that AP is done /* remote read singnal from AP that AP is done */
fv.common_fidvid &= 0xffff00; fv.common_fidvid &= 0xffff00;
//set state 2 allow is in init_fidvid_bsp_stage2 /* set state 2 allow is in init_fidvid_bsp_stage2 */
#if K8_SET_FIDVID_STORE_AP_APICID_AT_FIRST == 1 #if K8_SET_FIDVID_STORE_AP_APICID_AT_FIRST == 1
for(i=0;i<ap_apicidx.num;i++) { for (i = 0; i < ap_apicidx.num; i++) {
init_fidvid_bsp_stage2(ap_apicidx.apicid[i], &fv); init_fidvid_bsp_stage2(ap_apicidx.apicid[i], &fv);
} }
#else #else
for_each_ap(bsp_apicid, K8_SET_FIDVID_CORE0_ONLY, init_fidvid_bsp_stage2, &fv); for_each_ap(bsp_apicid, K8_SET_FIDVID_CORE0_ONLY, init_fidvid_bsp_stage2, &fv);
#endif #endif
#if K8_SET_FIDVID_ONE_BY_ONE == 0 #if K8_SET_FIDVID_ONE_BY_ONE == 0
// set BSP fid and vid /* set BSP fid and vid */
print_debug_fv("bsp apicid=", bsp_apicid); print_debug_fv("bsp apicid=", bsp_apicid);
fv.common_fidvid = set_fidvid(bsp_apicid, fv.common_fidvid, 1); fv.common_fidvid = set_fidvid(bsp_apicid, fv.common_fidvid, 1);
print_debug_fv("common_fidvid=", fv.common_fidvid); print_debug_fv("common_fidvid=", fv.common_fidvid);
#endif #endif
lapic_write(LAPIC_MSG_REG, fv.common_fidvid | (bsp_apicid<<24) | 3); // clear the state /* clear the state */
lapic_write(LAPIC_MSG_REG, fv.common_fidvid | (bsp_apicid << 24) | 3);
//here wait a while, so last ap could read pack, and stop it, don't call init_timer too early or just don't use init_timer /* here wait a while, so last ap could read pack, and stop it, don't
* call init_timer too early or just don't use init_timer */
} }