3560f788fe
Signed-off-by: Kristoffer Glembo <kristoffer@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
380 lines
8.3 KiB
C
380 lines
8.3 KiB
C
/* cpu.c: Dinky routines to look for the kind of Sparc cpu
|
|
* we are on.
|
|
*
|
|
* Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/init.h>
|
|
#include <linux/smp.h>
|
|
#include <linux/threads.h>
|
|
|
|
#include <asm/spitfire.h>
|
|
#include <asm/oplib.h>
|
|
#include <asm/page.h>
|
|
#include <asm/head.h>
|
|
#include <asm/psr.h>
|
|
#include <asm/mbus.h>
|
|
#include <asm/cpudata.h>
|
|
|
|
#include "kernel.h"
|
|
|
|
DEFINE_PER_CPU(cpuinfo_sparc, __cpu_data) = { 0 };
|
|
EXPORT_PER_CPU_SYMBOL(__cpu_data);
|
|
|
|
struct cpu_info {
|
|
int psr_vers;
|
|
const char *name;
|
|
const char *pmu_name;
|
|
};
|
|
|
|
struct fpu_info {
|
|
int fp_vers;
|
|
const char *name;
|
|
};
|
|
|
|
#define NOCPU 8
|
|
#define NOFPU 8
|
|
|
|
struct manufacturer_info {
|
|
int psr_impl;
|
|
struct cpu_info cpu_info[NOCPU];
|
|
struct fpu_info fpu_info[NOFPU];
|
|
};
|
|
|
|
#define CPU(ver, _name) \
|
|
{ .psr_vers = ver, .name = _name }
|
|
|
|
#define CPU_PMU(ver, _name, _pmu_name) \
|
|
{ .psr_vers = ver, .name = _name, .pmu_name = _pmu_name }
|
|
|
|
#define FPU(ver, _name) \
|
|
{ .fp_vers = ver, .name = _name }
|
|
|
|
static const struct manufacturer_info __initconst manufacturer_info[] = {
|
|
{
|
|
0,
|
|
/* Sun4/100, 4/200, SLC */
|
|
.cpu_info = {
|
|
CPU(0, "Fujitsu MB86900/1A or LSI L64831 SparcKIT-40"),
|
|
/* borned STP1012PGA */
|
|
CPU(4, "Fujitsu MB86904"),
|
|
CPU(5, "Fujitsu TurboSparc MB86907"),
|
|
CPU(-1, NULL)
|
|
},
|
|
.fpu_info = {
|
|
FPU(0, "Fujitsu MB86910 or Weitek WTL1164/5"),
|
|
FPU(1, "Fujitsu MB86911 or Weitek WTL1164/5 or LSI L64831"),
|
|
FPU(2, "LSI Logic L64802 or Texas Instruments ACT8847"),
|
|
/* SparcStation SLC, SparcStation1 */
|
|
FPU(3, "Weitek WTL3170/2"),
|
|
/* SPARCstation-5 */
|
|
FPU(4, "Lsi Logic/Meiko L64804 or compatible"),
|
|
FPU(-1, NULL)
|
|
}
|
|
},{
|
|
1,
|
|
.cpu_info = {
|
|
/* SparcStation2, SparcServer 490 & 690 */
|
|
CPU(0, "LSI Logic Corporation - L64811"),
|
|
/* SparcStation2 */
|
|
CPU(1, "Cypress/ROSS CY7C601"),
|
|
/* Embedded controller */
|
|
CPU(3, "Cypress/ROSS CY7C611"),
|
|
/* Ross Technologies HyperSparc */
|
|
CPU(0xf, "ROSS HyperSparc RT620"),
|
|
CPU(0xe, "ROSS HyperSparc RT625 or RT626"),
|
|
CPU(-1, NULL)
|
|
},
|
|
.fpu_info = {
|
|
FPU(0, "ROSS HyperSparc combined IU/FPU"),
|
|
FPU(1, "Lsi Logic L64814"),
|
|
FPU(2, "Texas Instruments TMS390-C602A"),
|
|
FPU(3, "Cypress CY7C602 FPU"),
|
|
FPU(-1, NULL)
|
|
}
|
|
},{
|
|
2,
|
|
.cpu_info = {
|
|
/* ECL Implementation, CRAY S-MP Supercomputer... AIEEE! */
|
|
/* Someone please write the code to support this beast! ;) */
|
|
CPU(0, "Bipolar Integrated Technology - B5010"),
|
|
CPU(-1, NULL)
|
|
},
|
|
.fpu_info = {
|
|
FPU(-1, NULL)
|
|
}
|
|
},{
|
|
3,
|
|
.cpu_info = {
|
|
CPU(0, "LSI Logic Corporation - unknown-type"),
|
|
CPU(-1, NULL)
|
|
},
|
|
.fpu_info = {
|
|
FPU(-1, NULL)
|
|
}
|
|
},{
|
|
4,
|
|
.cpu_info = {
|
|
CPU(0, "Texas Instruments, Inc. - SuperSparc-(II)"),
|
|
/* SparcClassic -- borned STP1010TAB-50*/
|
|
CPU(1, "Texas Instruments, Inc. - MicroSparc"),
|
|
CPU(2, "Texas Instruments, Inc. - MicroSparc II"),
|
|
CPU(3, "Texas Instruments, Inc. - SuperSparc 51"),
|
|
CPU(4, "Texas Instruments, Inc. - SuperSparc 61"),
|
|
CPU(5, "Texas Instruments, Inc. - unknown"),
|
|
CPU(-1, NULL)
|
|
},
|
|
.fpu_info = {
|
|
/* SuperSparc 50 module */
|
|
FPU(0, "SuperSparc on-chip FPU"),
|
|
/* SparcClassic */
|
|
FPU(4, "TI MicroSparc on chip FPU"),
|
|
FPU(-1, NULL)
|
|
}
|
|
},{
|
|
5,
|
|
.cpu_info = {
|
|
CPU(0, "Matsushita - MN10501"),
|
|
CPU(-1, NULL)
|
|
},
|
|
.fpu_info = {
|
|
FPU(0, "Matsushita MN10501"),
|
|
FPU(-1, NULL)
|
|
}
|
|
},{
|
|
6,
|
|
.cpu_info = {
|
|
CPU(0, "Philips Corporation - unknown"),
|
|
CPU(-1, NULL)
|
|
},
|
|
.fpu_info = {
|
|
FPU(-1, NULL)
|
|
}
|
|
},{
|
|
7,
|
|
.cpu_info = {
|
|
CPU(0, "Harvest VLSI Design Center, Inc. - unknown"),
|
|
CPU(-1, NULL)
|
|
},
|
|
.fpu_info = {
|
|
FPU(-1, NULL)
|
|
}
|
|
},{
|
|
8,
|
|
.cpu_info = {
|
|
CPU(0, "Systems and Processes Engineering Corporation (SPEC)"),
|
|
CPU(-1, NULL)
|
|
},
|
|
.fpu_info = {
|
|
FPU(-1, NULL)
|
|
}
|
|
},{
|
|
9,
|
|
.cpu_info = {
|
|
/* Gallium arsenide 200MHz, BOOOOGOOOOMIPS!!! */
|
|
CPU(0, "Fujitsu or Weitek Power-UP"),
|
|
CPU(1, "Fujitsu or Weitek Power-UP"),
|
|
CPU(2, "Fujitsu or Weitek Power-UP"),
|
|
CPU(3, "Fujitsu or Weitek Power-UP"),
|
|
CPU(-1, NULL)
|
|
},
|
|
.fpu_info = {
|
|
FPU(3, "Fujitsu or Weitek on-chip FPU"),
|
|
FPU(-1, NULL)
|
|
}
|
|
},{
|
|
0xF, /* Aeroflex Gaisler */
|
|
.cpu_info = {
|
|
CPU(3, "LEON"),
|
|
CPU(-1, NULL)
|
|
},
|
|
.fpu_info = {
|
|
FPU(2, "GRFPU"),
|
|
FPU(3, "GRFPU-Lite"),
|
|
FPU(-1, NULL)
|
|
}
|
|
},{
|
|
0x17,
|
|
.cpu_info = {
|
|
CPU_PMU(0x10, "TI UltraSparc I (SpitFire)", "ultra12"),
|
|
CPU_PMU(0x11, "TI UltraSparc II (BlackBird)", "ultra12"),
|
|
CPU_PMU(0x12, "TI UltraSparc IIi (Sabre)", "ultra12"),
|
|
CPU_PMU(0x13, "TI UltraSparc IIe (Hummingbird)", "ultra12"),
|
|
CPU(-1, NULL)
|
|
},
|
|
.fpu_info = {
|
|
FPU(0x10, "UltraSparc I integrated FPU"),
|
|
FPU(0x11, "UltraSparc II integrated FPU"),
|
|
FPU(0x12, "UltraSparc IIi integrated FPU"),
|
|
FPU(0x13, "UltraSparc IIe integrated FPU"),
|
|
FPU(-1, NULL)
|
|
}
|
|
},{
|
|
0x22,
|
|
.cpu_info = {
|
|
CPU_PMU(0x10, "TI UltraSparc I (SpitFire)", "ultra12"),
|
|
CPU(-1, NULL)
|
|
},
|
|
.fpu_info = {
|
|
FPU(0x10, "UltraSparc I integrated FPU"),
|
|
FPU(-1, NULL)
|
|
}
|
|
},{
|
|
0x3e,
|
|
.cpu_info = {
|
|
CPU_PMU(0x14, "TI UltraSparc III (Cheetah)", "ultra3"),
|
|
CPU_PMU(0x15, "TI UltraSparc III+ (Cheetah+)", "ultra3+"),
|
|
CPU_PMU(0x16, "TI UltraSparc IIIi (Jalapeno)", "ultra3i"),
|
|
CPU_PMU(0x18, "TI UltraSparc IV (Jaguar)", "ultra3+"),
|
|
CPU_PMU(0x19, "TI UltraSparc IV+ (Panther)", "ultra4+"),
|
|
CPU_PMU(0x22, "TI UltraSparc IIIi+ (Serrano)", "ultra3i"),
|
|
CPU(-1, NULL)
|
|
},
|
|
.fpu_info = {
|
|
FPU(0x14, "UltraSparc III integrated FPU"),
|
|
FPU(0x15, "UltraSparc III+ integrated FPU"),
|
|
FPU(0x16, "UltraSparc IIIi integrated FPU"),
|
|
FPU(0x18, "UltraSparc IV integrated FPU"),
|
|
FPU(0x19, "UltraSparc IV+ integrated FPU"),
|
|
FPU(0x22, "UltraSparc IIIi+ integrated FPU"),
|
|
FPU(-1, NULL)
|
|
}
|
|
}};
|
|
|
|
/* In order to get the fpu type correct, you need to take the IDPROM's
|
|
* machine type value into consideration too. I will fix this.
|
|
*/
|
|
|
|
const char *sparc_cpu_type;
|
|
const char *sparc_fpu_type;
|
|
const char *sparc_pmu_type;
|
|
|
|
unsigned int fsr_storage;
|
|
|
|
static void set_cpu_and_fpu(int psr_impl, int psr_vers, int fpu_vers)
|
|
{
|
|
const struct manufacturer_info *manuf;
|
|
int i;
|
|
|
|
sparc_cpu_type = NULL;
|
|
sparc_fpu_type = NULL;
|
|
sparc_pmu_type = NULL;
|
|
manuf = NULL;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(manufacturer_info); i++)
|
|
{
|
|
if (psr_impl == manufacturer_info[i].psr_impl) {
|
|
manuf = &manufacturer_info[i];
|
|
break;
|
|
}
|
|
}
|
|
if (manuf != NULL)
|
|
{
|
|
const struct cpu_info *cpu;
|
|
const struct fpu_info *fpu;
|
|
|
|
cpu = &manuf->cpu_info[0];
|
|
while (cpu->psr_vers != -1)
|
|
{
|
|
if (cpu->psr_vers == psr_vers) {
|
|
sparc_cpu_type = cpu->name;
|
|
sparc_pmu_type = cpu->pmu_name;
|
|
sparc_fpu_type = "No FPU";
|
|
break;
|
|
}
|
|
cpu++;
|
|
}
|
|
fpu = &manuf->fpu_info[0];
|
|
while (fpu->fp_vers != -1)
|
|
{
|
|
if (fpu->fp_vers == fpu_vers) {
|
|
sparc_fpu_type = fpu->name;
|
|
break;
|
|
}
|
|
fpu++;
|
|
}
|
|
}
|
|
if (sparc_cpu_type == NULL)
|
|
{
|
|
printk(KERN_ERR "CPU: Unknown chip, impl[0x%x] vers[0x%x]\n",
|
|
psr_impl, psr_vers);
|
|
sparc_cpu_type = "Unknown CPU";
|
|
}
|
|
if (sparc_fpu_type == NULL)
|
|
{
|
|
printk(KERN_ERR "FPU: Unknown chip, impl[0x%x] vers[0x%x]\n",
|
|
psr_impl, fpu_vers);
|
|
sparc_fpu_type = "Unknown FPU";
|
|
}
|
|
if (sparc_pmu_type == NULL)
|
|
sparc_pmu_type = "Unknown PMU";
|
|
}
|
|
|
|
#ifdef CONFIG_SPARC32
|
|
void __cpuinit cpu_probe(void)
|
|
{
|
|
int psr_impl, psr_vers, fpu_vers;
|
|
int psr;
|
|
|
|
psr_impl = ((get_psr() >> 28) & 0xf);
|
|
psr_vers = ((get_psr() >> 24) & 0xf);
|
|
|
|
psr = get_psr();
|
|
put_psr(psr | PSR_EF);
|
|
#ifdef CONFIG_SPARC_LEON
|
|
fpu_vers = 7;
|
|
#else
|
|
fpu_vers = ((get_fsr() >> 17) & 0x7);
|
|
#endif
|
|
|
|
put_psr(psr);
|
|
|
|
set_cpu_and_fpu(psr_impl, psr_vers, fpu_vers);
|
|
}
|
|
#else
|
|
static void __init sun4v_cpu_probe(void)
|
|
{
|
|
switch (sun4v_chip_type) {
|
|
case SUN4V_CHIP_NIAGARA1:
|
|
sparc_cpu_type = "UltraSparc T1 (Niagara)";
|
|
sparc_fpu_type = "UltraSparc T1 integrated FPU";
|
|
sparc_pmu_type = "niagara";
|
|
break;
|
|
|
|
case SUN4V_CHIP_NIAGARA2:
|
|
sparc_cpu_type = "UltraSparc T2 (Niagara2)";
|
|
sparc_fpu_type = "UltraSparc T2 integrated FPU";
|
|
sparc_pmu_type = "niagara2";
|
|
break;
|
|
|
|
default:
|
|
printk(KERN_WARNING "CPU: Unknown sun4v cpu type [%s]\n",
|
|
prom_cpu_compatible);
|
|
sparc_cpu_type = "Unknown SUN4V CPU";
|
|
sparc_fpu_type = "Unknown SUN4V FPU";
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int __init cpu_type_probe(void)
|
|
{
|
|
if (tlb_type == hypervisor) {
|
|
sun4v_cpu_probe();
|
|
} else {
|
|
unsigned long ver;
|
|
int manuf, impl;
|
|
|
|
__asm__ __volatile__("rdpr %%ver, %0" : "=r" (ver));
|
|
|
|
manuf = ((ver >> 48) & 0xffff);
|
|
impl = ((ver >> 32) & 0xffff);
|
|
set_cpu_and_fpu(manuf, impl, impl);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
arch_initcall(cpu_type_probe);
|
|
#endif
|