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-rw-r--r--src/cpu/amd/dualcore/amd_sibling.c180
-rw-r--r--src/cpu/amd/dualcore/dualcore.c56
-rw-r--r--src/cpu/amd/dualcore/dualcore_id.c4
-rw-r--r--src/cpu/amd/model_fxx/model_fxx_init.c98
4 files changed, 157 insertions, 181 deletions
diff --git a/src/cpu/amd/dualcore/amd_sibling.c b/src/cpu/amd/dualcore/amd_sibling.c
index da5928ab14..c34ab0601b 100644
--- a/src/cpu/amd/dualcore/amd_sibling.c
+++ b/src/cpu/amd/dualcore/amd_sibling.c
@@ -1,4 +1,5 @@
/* 2004.12 yhlu add dual core support */
+/* 24 June 2005 Cleaned up dual core support Eric Biederman */
#include <console/console.h>
#include <cpu/cpu.h>
@@ -14,59 +15,87 @@
static int first_time = 1;
static int disable_siblings = !CONFIG_LOGICAL_CPUS;
+void amd_sibling_init(device_t cpu, struct node_core_id id)
+{
+ unsigned long i;
+ unsigned siblings, max_siblings;
+
+ /* On the bootstrap processor see if I want sibling cpus enabled */
+ if (first_time) {
+ first_time = 0;
+ get_option(&disable_siblings, "dual_core");
+ }
+ siblings = cpuid_ecx(0x80000008) & 0xff;
+ printk_debug("%d Sibling Cores found\n", siblings);
-int is_e0_later_in_bsp(int nodeid)
-{
- uint32_t val;
- uint32_t val_old;
- int e0_later;
- if(nodeid==0) { // we don't need to do that for node 0 in core0/node0
- return !is_cpu_pre_e0();
+ /* For now assume all cpus have the same number of siblings */
+ max_siblings = siblings + 1;
+
+ /* Wishlist? make dual cores look like hyperthreading */
+
+ /* See if I am a sibling cpu */
+ if (disable_siblings && (id.coreid != 0)) {
+ cpu->enabled = 0;
}
- // d0 will be treated as e0 with this methods, but the d0 nb_cfg_54 always 0
- device_t dev;
- dev = dev_find_slot(0, PCI_DEVFN(0x18+nodeid,2));
- if(!dev) return 0;
- val_old = pci_read_config32(dev, 0x80);
- val = val_old;
- val |= (1<<3);
- pci_write_config32(dev, 0x80, val);
- val = pci_read_config32(dev, 0x80);
- e0_later = !!(val & (1<<3));
- if(e0_later) { // pre_e0 bit 3 always be 0 and can not be changed
- pci_write_config32(dev, 0x80, val_old); // restore it
+
+ if (id.coreid == 0) {
+ /* On the primary cpu find the siblings */
+ for (i = 1; i <= siblings; i++) {
+ struct device_path cpu_path;
+ device_t new;
+ /* Build the cpu device path */
+ cpu_path.type = DEVICE_PATH_APIC;
+ cpu_path.u.apic.apic_id =
+ (id.nodeid*max_siblings) + i;
+ new = alloc_dev(cpu->bus, &cpu_path);
+ if (!new) {
+ continue;
+ }
+ /* Report what I have done */
+ printk_debug("CPU: %s %s\n",
+ dev_path(new), new->enabled?"enabled":"disabled");
+ }
}
-
- return e0_later;
}
-unsigned int read_nb_cfg_54(void)
+struct node_core_id get_node_core_id(void)
{
- msr_t msr;
- msr = rdmsr(NB_CFG_MSR);
- return ( ( msr.hi >> (54-32)) & 1);
-}
-
-struct node_core_id get_node_core_id(unsigned int nb_cfg_54) {
struct node_core_id id;
- // get the apicid via cpuid(1) ebx[27:24]
- if(nb_cfg_54) {
- // when NB_CFG[54] is set, nodid = ebx[27:25], coreid = ebx[24]
- id.coreid = (cpuid_ebx(1) >> 24) & 0xf;
- id.nodeid = (id.coreid>>1);
- id.coreid &= 1;
- } else { // single core should be here too
+ unsigned siblings;
+ /* Get the apicid at reset */
+ id.nodeid = (cpuid_ebx(1) >> 24) & 0xff;
+ id.coreid = 0;
+ /* Find out how many siblings we have */
+ siblings = cpuid_ecx(0x80000008) & 0xff;
+ if (siblings) {
+ unsigned bits;
+ msr_t msr;
+ bits = 0;
+ while ((1 << bits) <= siblings)
+ bits++;
+
+ msr = rdmsr(NB_CFG_MSR);
+ if ((msr.hi >> (54-32)) & 1) {
+ // when NB_CFG[54] is set, nodeid = ebx[27:25], coreid = ebx[24]
+ id.coreid = id.nodeid & ((1 << bits) - 1);
+ id.nodeid >>= bits;
+ } else {
// when NB_CFG[54] is clear, nodeid = ebx[26:24], coreid = ebx[27]
- id.nodeid = (cpuid_ebx(1) >> 24) & 0xf;
- id.coreid = (id.nodeid>>3);
- id.nodeid &= 7;
+ id.coreid = id.nodeid >> 3;
+ id.nodeid &= 7;
+ }
+ } else {
+ if (!is_cpu_pre_e0()) {
+ id.nodeid >>= 1;
+ }
}
- return id;
+ return id;
+}
-}
+#if 0
static int get_max_siblings(int nodes)
{
device_t dev;
@@ -169,76 +198,5 @@ unsigned get_apicid_base(unsigned ioapic_num)
return apicid_base;
}
-#if 0
-void amd_sibling_init(device_t cpu)
-{
- unsigned i, siblings;
- struct cpuid_result result;
- unsigned nb_cfg_54;
- struct node_core_id id;
-
- /* On the bootstrap processor see if I want sibling cpus enabled */
- if (first_time) {
- first_time = 0;
- get_option(&disable_siblings, "dual_core");
- }
- result = cpuid(0x80000008);
- /* See how many sibling cpus we have */
- /* Is dualcore supported */
- siblings = (result.ecx & 0xff);
- if ( siblings < 1) {
- return;
- }
-
-#if 1
- printk_debug("CPU: %u %d siblings\n",
- cpu->path.u.apic.apic_id,
- siblings);
-#endif
- nb_cfg_54 = read_nb_cfg_54();
-#if 1
- id = get_node_core_id(nb_cfg_54); // pre e0 nb_cfg_54 can not be set
-
- /* See if I am a sibling cpu */
- //if ((cpu->path.u.apic.apic_id>>(nb_cfg_54?0:3)) & siblings ) { // siblings = 1, 3, 7, 15,....
- //if ( ( (cpu->path.u.apic.apic_id>>(nb_cfg_54?0:3)) % (siblings+1) ) != 0 ) {
- if(id.coreid != 0) {
- if (disable_siblings) {
- cpu->enabled = 0;
- }
- return;
- }
-#endif
-
- /* I am the primary cpu start up my siblings */
-
- for(i = 1; i <= siblings; i++) {
- struct device_path cpu_path;
- device_t new;
- /* Build the cpu device path */
- cpu_path.type = DEVICE_PATH_APIC;
- cpu_path.u.apic.apic_id = cpu->path.u.apic.apic_id + i * (nb_cfg_54?1:8);
-
- /* See if I can find the cpu */
- new = find_dev_path(cpu->bus, &cpu_path);
- /* Allocate the new cpu device structure */
- if(!new) {
- new = alloc_dev(cpu->bus, &cpu_path);
- new->enabled = 1;
- new->initialized = 0;
- }
-
-#if 1
- printk_debug("CPU: %u has sibling %u\n",
- cpu->path.u.apic.apic_id,
- new->path.u.apic.apic_id);
-#endif
- /* Start the new cpu */
- if(new->enabled && !new->initialized)
- start_cpu(new);
- }
-
-}
#endif
-
diff --git a/src/cpu/amd/dualcore/dualcore.c b/src/cpu/amd/dualcore/dualcore.c
index 1c3b2751a5..12cdaf7589 100644
--- a/src/cpu/amd/dualcore/dualcore.c
+++ b/src/cpu/amd/dualcore/dualcore.c
@@ -1,12 +1,15 @@
/* 2004.12 yhlu add dual core support */
+
+
#ifndef SET_NB_CFG_54
#define SET_NB_CFG_54 1
#endif
#include "cpu/amd/dualcore/dualcore_id.c"
+#if 0
static inline unsigned get_core_num_in_bsp(unsigned nodeid)
{
return ((pci_read_config32(PCI_DEV(0, 0x18+nodeid, 3), 0xe8)>>12) & 3);
@@ -97,3 +100,56 @@ static inline void start_other_cores(void) {
}
}
+#endif
+
+static void k8_init_and_stop_secondaries(void)
+{
+ struct node_core_id id;
+ device_t dev;
+ unsigned apicid;
+ unsigned max_siblings;
+ int init_detected;
+ msr_t msr;
+
+ /* Skip this if there was a built in self test failure */
+ init_detected = early_mtrr_init_detected();
+ amd_early_mtrr_init();
+ enable_lapic();
+ init_timer();
+ if (init_detected) {
+ asm volatile ("jmp __cpu_reset");
+ }
+
+ if (is_cpu_pre_e0()) {
+ id.nodeid = lapicid() & 0x7;
+ id.coreid = 0;
+ } else {
+ /* Which cpu are we on? */
+ id = get_node_core_id_x();
+
+ /* Set NB_CFG_MSR
+ * Linux expect the core to be in the least signficant bits.
+ */
+ msr = rdmsr(NB_CFG_MSR);
+ msr.hi |= (1<<(54-32)); // InitApicIdCpuIdLo
+ wrmsr(NB_CFG_MSR, msr);
+ }
+
+ /* For now assume all cpus have the same number of siblings */
+ max_siblings = (cpuid_ecx(0x80000008) & 0xff) + 1;
+
+ /* Set the lapicid */
+ lapic_write(LAPIC_ID,((id.nodeid*max_siblings) + id.coreid) << 24);
+
+ /* Remember the cpuid */
+ if (id.coreid == 0) {
+ dev = PCI_DEV(0, 0x18 + id.nodeid, 2);
+ pci_write_config32(dev, 0x9c, cpuid_eax(1));
+ }
+
+ /* Maybe call distinguish_cpu_resets only on the last core? */
+ distinguish_cpu_resets(id.nodeid);
+ if (!boot_cpu()) {
+ stop_this_cpu();
+ }
+}
diff --git a/src/cpu/amd/dualcore/dualcore_id.c b/src/cpu/amd/dualcore/dualcore_id.c
index feab682851..75d977133a 100644
--- a/src/cpu/amd/dualcore/dualcore_id.c
+++ b/src/cpu/amd/dualcore/dualcore_id.c
@@ -11,8 +11,8 @@ static inline unsigned int read_nb_cfg_54(void)
}
struct node_core_id {
- unsigned nodeid;
- unsigned coreid;
+ unsigned nodeid:8;
+ unsigned coreid:8;
};
static inline struct node_core_id get_node_core_id(unsigned nb_cfg_54) {
diff --git a/src/cpu/amd/model_fxx/model_fxx_init.c b/src/cpu/amd/model_fxx/model_fxx_init.c
index 3c526e78ca..bd3a1cea08 100644
--- a/src/cpu/amd/model_fxx/model_fxx_init.c
+++ b/src/cpu/amd/model_fxx/model_fxx_init.c
@@ -21,10 +21,7 @@
#include <cpu/x86/cache.h>
#include <cpu/x86/mtrr.h>
#include <cpu/x86/mem.h>
-
-#if CONFIG_LOGICAL_CPUS==1
#include <cpu/amd/dualcore.h>
-#endif
#include "model_fxx_msr.h"
@@ -152,9 +149,6 @@ static void set_init_ecc_mtrrs(void)
static void init_ecc_memory(unsigned node_id)
{
unsigned long startk, begink, endk;
-#if K8_E0_MEM_HOLE_SIZEK != 0
- unsigned long hole_startk = 0, hole_endk = 0;
-#endif
unsigned long basek;
struct mtrr_state mtrr_state;
device_t f1_dev, f2_dev, f3_dev;
@@ -199,25 +193,13 @@ static void init_ecc_memory(unsigned node_id)
startk = (pci_read_config32(f1_dev, 0x40 + (node_id*8)) & 0xffff0000) >> 2;
endk = ((pci_read_config32(f1_dev, 0x44 + (node_id*8)) & 0xffff0000) >> 2) + 0x4000;
-#if K8_E0_MEM_HOLE_SIZEK != 0
- if (!is_cpu_pre_e0()) {
- uint32_t val;
- val = pci_read_config32(f1_dev, 0xf0);
- if((val & 1)==1) {
- hole_startk = ((val & (0xff<<24)) >> 10);
- hole_endk = ((val & (0xff<<8))<<(16-10)) - startk;
- hole_endk += hole_startk;
- }
- }
-#endif
-
/* Don't start too early */
begink = startk;
if (begink < CONFIG_LB_MEM_TOPK) {
begink = CONFIG_LB_MEM_TOPK;
}
- printk_debug("Clearing memory %uK - %uK: ", startk, endk);
+ printk_debug("Clearing memory %uK - %uK: ", begink, endk);
/* Save the normal state */
save_mtrr_state(&mtrr_state);
@@ -234,9 +216,6 @@ static void init_ecc_memory(unsigned node_id)
unsigned long size;
void *addr;
-#if K8_E0_MEM_HOLE_SIZEK != 0
- if ((basek >= hole_startk) && (basek < hole_endk)) continue;
-#endif
/* Report every 64M */
if ((basek % (64*1024)) == 0) {
/* Restore the normal state */
@@ -340,6 +319,7 @@ static inline void k8_errata(void)
/* Erratum 91 prefetch miss is handled in the kernel */
+
/* Erratum 106 ... */
msr = rdmsr_amd(LS_CFG_MSR);
msr.lo |= 1 << 25;
@@ -350,7 +330,7 @@ static inline void k8_errata(void)
msr.hi |= 1 << (43 - 32);
wrmsr_amd(BU_CFG_MSR, msr);
- if(is_cpu_d0()) {
+ if (is_cpu_pre_e0() && !is_cpu_pre_d0()) {
/* Erratum 110 ...*/
msr = rdmsr_amd(CPU_ID_HYPER_EXT_FEATURES);
msr.hi |=1;
@@ -362,26 +342,34 @@ static inline void k8_errata(void)
msr = rdmsr_amd(CPU_ID_EXT_FEATURES_MSR);
msr.hi |=1;
wrmsr_amd(CPU_ID_EXT_FEATURES_MSR, msr);
+
+ /* Erratum 113 ... */
+ msr = rdmsr_amd(BU_CFG_MSR);
+ msr.hi |= (1 << 16);
+ wrmsr_amd(BU_CFG_MSR, msr);
}
/* Erratum 122 */
- msr = rdmsr(HWCR_MSR);
- msr.lo |= 1 << 6;
- wrmsr(HWCR_MSR, msr);
+ if (!is_cpu_pre_c0()) {
+ msr = rdmsr(HWCR_MSR);
+ msr.lo |= 1 << 6;
+ wrmsr(HWCR_MSR, msr);
+ }
+
+ /* Erratum 123? dual core deadlock? */
+
+ /* Erratum 131 */
+ msr = rdmsr(NB_CFG_MSR);
+ msr.lo |= 1 << 20;
+ wrmsr(NB_CFG_MSR, msr);
}
-void model_fxx_init(device_t dev)
+void model_fxx_init(device_t cpu)
{
unsigned long i;
msr_t msr;
-#if CONFIG_LOGICAL_CPUS
struct node_core_id id;
- unsigned siblings;
- id.coreid=0;
-#else
- unsigned nodeid;
-#endif
/* Turn on caching if we haven't already */
x86_enable_cache();
@@ -404,43 +392,18 @@ void model_fxx_init(device_t dev)
/* Enable the local cpu apics */
setup_lapic();
-#if CONFIG_LOGICAL_CPUS == 1
- siblings = cpuid_ecx(0x80000008) & 0xff;
+ /* Find our node and core */
+ id = get_node_core_id();
- id = get_node_core_id(read_nb_cfg_54()); // pre e0 nb_cfg_54 can not be set
-
- if(siblings>0) {
- msr = rdmsr_amd(CPU_ID_FEATURES_MSR);
- msr.lo |= 1 << 28;
- wrmsr_amd(CPU_ID_FEATURES_MSR, msr);
-
- msr = rdmsr_amd(LOGICAL_CPUS_NUM_MSR);
- msr.lo = (siblings+1)<<16;
- wrmsr_amd(LOGICAL_CPUS_NUM_MSR, msr);
-
- msr = rdmsr_amd(CPU_ID_EXT_FEATURES_MSR);
- msr.hi |= 1<<(33-32);
- wrmsr_amd(CPU_ID_EXT_FEATURES_MSR, msr);
- }
-
-
- /* Is this a bad location? In particular can another node prefecth
- * data from this node before we have initialized it?
- */
- if (id.coreid == 0) init_ecc_memory(id.nodeid); // only do it for core 0
-#else
- /* Is this a bad location? In particular can another node prefecth
+ /* Is this a bad location? In particular can another node prefetch
* data from this node before we have initialized it?
*/
- nodeid = lapicid() & 0xf;
- init_ecc_memory(nodeid);
-#endif
-
-#if CONFIG_LOGICAL_CPUS==1
- /* Start up my cpu siblings */
-// if(id.coreid==0) amd_sibling_init(dev); // Don't need core1 is already be put in the CPU BUS in bus_cpu_scan
-#endif
+ if (id.coreid == 0) {
+ init_ecc_memory(id.nodeid); // only do it for core 0
+ }
+ /* Deal with sibling cpus */
+ amd_sibling_init(cpu, id);
}
static struct device_operations cpu_dev_ops = {
@@ -451,7 +414,7 @@ static struct cpu_device_id cpu_table[] = {
{ X86_VENDOR_AMD, 0xf51 }, /* SH7-B3 */
{ X86_VENDOR_AMD, 0xf58 }, /* SH7-C0 */
{ X86_VENDOR_AMD, 0xf48 },
-#if 1
+
{ X86_VENDOR_AMD, 0xf5A }, /* SH7-CG */
{ X86_VENDOR_AMD, 0xf4A },
{ X86_VENDOR_AMD, 0xf7A },
@@ -483,7 +446,6 @@ static struct cpu_device_id cpu_table[] = {
{ X86_VENDOR_AMD, 0x20fc2 },
{ X86_VENDOR_AMD, 0x20f12 }, /* JH-E6 */
{ X86_VENDOR_AMD, 0x20f32 },
-#endif
{ 0, 0 },
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-02 14:16:12 +0000