On Sun, Aug 21, 2022 at 03:57:07PM +1000, Jonathan Gray wrote:
> removed from amd64 in locore.S 1.71 in 2015
> the cpuid_level == -1 path can go in a later step
previous missed locore.s/mptramp.s
diff --git sys/arch/amd64/include/cpu.h sys/arch/amd64/include/cpu.h
index b8db48f2714..d8b7bc61ede 100644
--- sys/arch/amd64/include/cpu.h
+++ sys/arch/amd64/include/cpu.h
@@ -369,7 +369,6 @@ struct timeval;
/* locore.S */
extern int biosbasemem;
extern int biosextmem;
-extern int cpu;
extern int cpu_feature;
extern int cpu_ebxfeature;
extern int cpu_ecxfeature;
diff --git sys/arch/i386/i386/locore.s sys/arch/i386/i386/locore.s
index e0753e74267..dba6ce75b81 100644
--- sys/arch/i386/i386/locore.s
+++ sys/arch/i386/i386/locore.s
@@ -221,7 +221,7 @@ INTRENTRY_LABEL(label): /* from kernel */ ; \
*/
.data
- .globl _C_LABEL(cpu), _C_LABEL(cpu_id), _C_LABEL(cpu_vendor)
+ .globl _C_LABEL(cpu_id), _C_LABEL(cpu_vendor)
.globl _C_LABEL(cpu_brandstr)
.globl _C_LABEL(cpuid_level)
.globl _C_LABEL(cpu_miscinfo)
@@ -266,7 +266,6 @@ _C_LABEL(lapic_tpr):
.long 0
#endif
-_C_LABEL(cpu): .long 0 # are we 486, 586 or 686
_C_LABEL(cpu_id): .long 0 # saved from 'cpuid' instruction
_C_LABEL(cpu_pae): .long 0 # are we using PAE paging mode?
_C_LABEL(cpu_miscinfo): .long 0 # misc info (apic/brand id)
from 'cpuid'
diff --git sys/arch/i386/i386/locore0.S sys/arch/i386/i386/locore0.S
index 8d03facc7b7..cba7edd53ba 100644
--- sys/arch/i386/i386/locore0.S
+++ sys/arch/i386/i386/locore0.S
@@ -131,7 +131,7 @@ start: movw $0x1234,0x472 # warm
boot
testl %eax,%eax
jnz .Ltry586
-.Lis486: movl $CPU_486,RELOC(_C_LABEL(cpu))
+.Lis486:
jmp 2f
diff --git sys/arch/i386/i386/machdep.c sys/arch/i386/i386/machdep.c
index 36f3eef49e5..364132760fc 100644
--- sys/arch/i386/i386/machdep.c
+++ sys/arch/i386/i386/machdep.c
@@ -493,15 +493,6 @@ i386_init_pcb_tss(struct cpu_info *ci)
*/
char cpu_model[120];
-/*
- * Note: these are just the ones that may not have a cpuid instruction.
- * We deal with the rest in a different way.
- */
-const struct cpu_nocpuid_nameclass i386_nocpuid_cpus[] = {
- { CPUVENDOR_INTEL, "Intel", "486DX", CPUCLASS_486,
- NULL}, /* CPU_486 */
-};
-
const char *classnames[] = {
"",
"486",
@@ -1672,18 +1663,13 @@ identifycpu(struct cpu_info *ci)
extern uint32_t cpu_meltdown;
if (cpuid_level == -1) {
-#ifdef DIAGNOSTIC
- if (cpu < 0 || cpu >=
- (sizeof i386_nocpuid_cpus/sizeof(struct
cpu_nocpuid_nameclass)))
- panic("unknown cpu type %d", cpu);
-#endif
- name = i386_nocpuid_cpus[cpu].cpu_name;
- vendor = i386_nocpuid_cpus[cpu].cpu_vendor;
- vendorname = i386_nocpuid_cpus[cpu].cpu_vendorname;
+ name = "486DX";
+ vendor = CPUVENDOR_INTEL;
+ vendorname = "Intel";
model = -1;
step = -1;
- class = i386_nocpuid_cpus[cpu].cpu_class;
- ci->cpu_setup = i386_nocpuid_cpus[cpu].cpu_setup;
+ class = CPUCLASS_486;
+ ci->cpu_setup = NULL;
modifier = "";
token = "";
} else {
diff --git sys/arch/i386/i386/mptramp.s sys/arch/i386/i386/mptramp.s
index a206cd6867b..a43ff971d05 100644
--- sys/arch/i386/i386/mptramp.s
+++ sys/arch/i386/i386/mptramp.s
@@ -98,7 +98,7 @@
MP_TRAMP_DATA
#define _TRMP_DATA_OFFSET(a) a = . - _C_LABEL(mp_tramp_data_start)
- .globl _C_LABEL(cpu),_C_LABEL(cpu_id),_C_LABEL(cpu_vendor)
+ .globl _C_LABEL(cpu_id),_C_LABEL(cpu_vendor)
.globl _C_LABEL(cpuid_level),_C_LABEL(cpu_feature)
.global _C_LABEL(cpu_spinup_trampoline)
diff --git sys/arch/i386/include/cpu.h sys/arch/i386/include/cpu.h
index 5f300710562..e6f2237eafe 100644
--- sys/arch/i386/include/cpu.h
+++ sys/arch/i386/include/cpu.h
@@ -342,7 +342,6 @@ struct cpu_cpuid_feature {
};
/* locore.s */
-extern int cpu;
extern int cpu_id;
extern char cpu_vendor[]; /* note: NOT nul-terminated */
extern char cpu_brandstr[];
diff --git sys/arch/i386/include/cputypes.h sys/arch/i386/include/cputypes.h
index fd7c6b0bd3d..52f1f5318ec 100644
--- sys/arch/i386/include/cputypes.h
+++ sys/arch/i386/include/cputypes.h
@@ -36,12 +36,6 @@
#define CPUCLASS_586 2
#define CPUCLASS_686 3
-/*
- * Kind of Processor.
- */
-
-#define CPU_486 0 /* Intel 80486DX */
-
/*
* CPU vendors
*/
