# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1196962268 0
# Node ID 8524311a69e7fe4d368cd6b505549fad5dd22bea
# Parent a3c671f2f10d049a518a805b55b7f809af624ee7
x86: Sync cpu/common.c with Linux 2.6.18.
Signed-off-by: Keir Fraser <keir.fraser@xxxxxxxxxx>
xen-unstable changeset: 16524:3dc3a5feeb6038546710d95cec0a3774a4f41157
xen-unstable date: Wed Dec 05 09:56:17 2007 +0000
---
xen/arch/x86/cpu/common.c | 45 +++++++++++++++++++++++++++------------------
1 files changed, 27 insertions(+), 18 deletions(-)
diff -r a3c671f2f10d -r 8524311a69e7 xen/arch/x86/cpu/common.c
--- a/xen/arch/x86/cpu/common.c Thu Dec 06 17:30:40 2007 +0000
+++ b/xen/arch/x86/cpu/common.c Thu Dec 06 17:31:08 2007 +0000
@@ -17,9 +17,9 @@
#define tsc_disable 0
#define disable_pse 0
-static int cachesize_override __devinitdata = -1;
-static int disable_x86_fxsr __devinitdata = 0;
-static int disable_x86_serial_nr __devinitdata = 0;
+static int cachesize_override __cpuinitdata = -1;
+static int disable_x86_fxsr __cpuinitdata;
+static int disable_x86_serial_nr __cpuinitdata;
struct cpu_dev * cpu_devs[X86_VENDOR_NUM] = {};
@@ -38,12 +38,13 @@ static void default_init(struct cpuinfo_
static struct cpu_dev default_cpu = {
.c_init = default_init,
+ .c_vendor = "Unknown",
};
static struct cpu_dev * this_cpu = &default_cpu;
integer_param("cachesize", cachesize_override);
-int __devinit get_model_name(struct cpuinfo_x86 *c)
+int __cpuinit get_model_name(struct cpuinfo_x86 *c)
{
unsigned int *v;
char *p, *q;
@@ -73,7 +74,7 @@ int __devinit get_model_name(struct cpui
}
-void __devinit display_cacheinfo(struct cpuinfo_x86 *c)
+void __cpuinit display_cacheinfo(struct cpuinfo_x86 *c)
{
unsigned int n, dummy, ecx, edx, l2size;
@@ -114,7 +115,7 @@ void __devinit display_cacheinfo(struct
/* in particular, if CPUID levels 0x80000002..4 are supported, this isn't used
*/
/* Look up CPU names by table lookup. */
-static char __devinit *table_lookup_model(struct cpuinfo_x86 *c)
+static char __cpuinit *table_lookup_model(struct cpuinfo_x86 *c)
{
struct cpu_model_info *info;
@@ -135,10 +136,11 @@ static char __devinit *table_lookup_mode
}
-static void __devinit get_cpu_vendor(struct cpuinfo_x86 *c, int early)
+static void __cpuinit get_cpu_vendor(struct cpuinfo_x86 *c, int early)
{
char *v = c->x86_vendor_id;
int i;
+ static int printed;
for (i = 0; i < X86_VENDOR_NUM; i++) {
if (cpu_devs[i]) {
@@ -148,10 +150,17 @@ static void __devinit get_cpu_vendor(str
c->x86_vendor = i;
if (!early)
this_cpu = cpu_devs[i];
- break;
+ return;
}
}
}
+ if (!printed) {
+ printed++;
+ printk(KERN_ERR "CPU: Vendor unknown, using generic init.\n");
+ printk(KERN_ERR "CPU: Your system may be unstable.\n");
+ }
+ c->x86_vendor = X86_VENDOR_UNKNOWN;
+ this_cpu = &default_cpu;
}
@@ -181,7 +190,7 @@ static inline int flag_is_changeable_p(u
/* Probe for the CPUID instruction */
-static int __devinit have_cpuid_p(void)
+static int __cpuinit have_cpuid_p(void)
{
return flag_is_changeable_p(X86_EFLAGS_ID);
}
@@ -226,7 +235,7 @@ static void __init early_cpu_detect(void
}
}
-void __devinit generic_identify(struct cpuinfo_x86 * c)
+void __cpuinit generic_identify(struct cpuinfo_x86 * c)
{
u32 tfms, xlvl;
int junk;
@@ -250,10 +259,10 @@ void __devinit generic_identify(struct c
c->x86_capability[4] = excap;
c->x86 = (tfms >> 8) & 15;
c->x86_model = (tfms >> 4) & 15;
- if (c->x86 == 0xf) {
+ if (c->x86 == 0xf)
c->x86 += (tfms >> 20) & 0xff;
+ if (c->x86 >= 0x6)
c->x86_model += ((tfms >> 16) & 0xF) << 4;
- }
c->x86_mask = tfms & 15;
} else {
/* Have CPUID level 0 only - unheard of */
@@ -279,7 +288,7 @@ void __devinit generic_identify(struct c
#endif
}
-static void __devinit squash_the_stupid_serial_number(struct cpuinfo_x86 *c)
+static void __cpuinit squash_the_stupid_serial_number(struct cpuinfo_x86 *c)
{
if (cpu_has(c, X86_FEATURE_PN) && disable_x86_serial_nr ) {
/* Disable processor serial number */
@@ -302,7 +311,7 @@ boolean_param("noserialnumber", disable_
/*
* This does the hard work of actually picking apart the CPU stuff...
*/
-void __devinit identify_cpu(struct cpuinfo_x86 *c)
+void __cpuinit identify_cpu(struct cpuinfo_x86 *c)
{
int i;
@@ -438,7 +447,7 @@ static inline u32 phys_pkg_id(u32 cpuid_
return hard_smp_processor_id() >> index_msb;
}
-void __devinit detect_ht(struct cpuinfo_x86 *c)
+void __cpuinit detect_ht(struct cpuinfo_x86 *c)
{
u32 eax, ebx, ecx, edx;
int index_msb, core_bits;
@@ -485,7 +494,7 @@ void __devinit detect_ht(struct cpuinfo_
}
#endif
-void __devinit print_cpu_info(struct cpuinfo_x86 *c)
+void __cpuinit print_cpu_info(struct cpuinfo_x86 *c)
{
char *vendor = NULL;
@@ -508,7 +517,7 @@ void __devinit print_cpu_info(struct cpu
printk("\n");
}
-cpumask_t cpu_initialized __devinitdata = CPU_MASK_NONE;
+cpumask_t cpu_initialized __cpuinitdata = CPU_MASK_NONE;
/* This is hacky. :)
* We're emulating future behavior.
@@ -545,7 +554,7 @@ void __init early_cpu_init(void)
* and IDT. We reload them nevertheless, this function acts as a
* 'CPU state barrier', nothing should get across.
*/
-void __devinit cpu_init(void)
+void __cpuinit cpu_init(void)
{
int cpu = smp_processor_id();
struct tss_struct *t = &init_tss[cpu];
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