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-rw-r--r--arch/sparc/kernel/cpu.c413
1 files changed, 292 insertions, 121 deletions
diff --git a/arch/sparc/kernel/cpu.c b/arch/sparc/kernel/cpu.c
index 1fc17f59c6bf..6c2da2420f76 100644
--- a/arch/sparc/kernel/cpu.c
+++ b/arch/sparc/kernel/cpu.c
@@ -8,6 +8,8 @@
#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>
@@ -15,153 +17,322 @@
#include <asm/mbus.h>
#include <asm/cpudata.h>
+#include "kernel.h"
+
DEFINE_PER_CPU(cpuinfo_sparc, __cpu_data) = { 0 };
-struct cpu_iu_info {
- int psr_impl;
- int psr_vers;
- char* cpu_name; /* should be enough I hope... */
+struct cpu_info {
+ int psr_vers;
+ const char *name;
+};
+
+struct fpu_info {
+ int fp_vers;
+ const char *name;
};
-struct cpu_fp_info {
- int psr_impl;
- int fp_vers;
- char* fp_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 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)
+ }
+},{
+ 0x17,
+ .cpu_info = {
+ CPU(0x10, "TI UltraSparc I (SpitFire)"),
+ CPU(0x11, "TI UltraSparc II (BlackBird)"),
+ CPU(0x12, "TI UltraSparc IIi (Sabre)"),
+ CPU(0x13, "TI UltraSparc IIe (Hummingbird)"),
+ 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(0x10, "TI UltraSparc I (SpitFire)"),
+ CPU(-1, NULL)
+ },
+ .fpu_info = {
+ FPU(0x10, "UltraSparc I integrated FPU"),
+ FPU(-1, NULL)
+ }
+},{
+ 0x3e,
+ .cpu_info = {
+ CPU(0x14, "TI UltraSparc III (Cheetah)"),
+ CPU(0x15, "TI UltraSparc III+ (Cheetah+)"),
+ CPU(0x16, "TI UltraSparc IIIi (Jalapeno)"),
+ CPU(0x18, "TI UltraSparc IV (Jaguar)"),
+ CPU(0x19, "TI UltraSparc IV+ (Panther)"),
+ CPU(0x22, "TI UltraSparc IIIi+ (Serrano)"),
+ 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.
*/
-static struct cpu_fp_info linux_sparc_fpu[] = {
- { 0, 0, "Fujitsu MB86910 or Weitek WTL1164/5"},
- { 0, 1, "Fujitsu MB86911 or Weitek WTL1164/5 or LSI L64831"},
- { 0, 2, "LSI Logic L64802 or Texas Instruments ACT8847"},
- /* SparcStation SLC, SparcStation1 */
- { 0, 3, "Weitek WTL3170/2"},
- /* SPARCstation-5 */
- { 0, 4, "Lsi Logic/Meiko L64804 or compatible"},
- { 0, 5, "reserved"},
- { 0, 6, "reserved"},
- { 0, 7, "No FPU"},
- { 1, 0, "ROSS HyperSparc combined IU/FPU"},
- { 1, 1, "Lsi Logic L64814"},
- { 1, 2, "Texas Instruments TMS390-C602A"},
- { 1, 3, "Cypress CY7C602 FPU"},
- { 1, 4, "reserved"},
- { 1, 5, "reserved"},
- { 1, 6, "reserved"},
- { 1, 7, "No FPU"},
- { 2, 0, "BIT B5010 or B5110/20 or B5210"},
- { 2, 1, "reserved"},
- { 2, 2, "reserved"},
- { 2, 3, "reserved"},
- { 2, 4, "reserved"},
- { 2, 5, "reserved"},
- { 2, 6, "reserved"},
- { 2, 7, "No FPU"},
- /* SuperSparc 50 module */
- { 4, 0, "SuperSparc on-chip FPU"},
- /* SparcClassic */
- { 4, 4, "TI MicroSparc on chip FPU"},
- { 5, 0, "Matsushita MN10501"},
- { 5, 1, "reserved"},
- { 5, 2, "reserved"},
- { 5, 3, "reserved"},
- { 5, 4, "reserved"},
- { 5, 5, "reserved"},
- { 5, 6, "reserved"},
- { 5, 7, "No FPU"},
- { 9, 3, "Fujitsu or Weitek on-chip FPU"},
-};
-#define NSPARCFPU ARRAY_SIZE(linux_sparc_fpu)
-
-static struct cpu_iu_info linux_sparc_chips[] = {
- /* Sun4/100, 4/200, SLC */
- { 0, 0, "Fujitsu MB86900/1A or LSI L64831 SparcKIT-40"},
- /* borned STP1012PGA */
- { 0, 4, "Fujitsu MB86904"},
- { 0, 5, "Fujitsu TurboSparc MB86907"},
- /* SparcStation2, SparcServer 490 & 690 */
- { 1, 0, "LSI Logic Corporation - L64811"},
- /* SparcStation2 */
- { 1, 1, "Cypress/ROSS CY7C601"},
- /* Embedded controller */
- { 1, 3, "Cypress/ROSS CY7C611"},
- /* Ross Technologies HyperSparc */
- { 1, 0xf, "ROSS HyperSparc RT620"},
- { 1, 0xe, "ROSS HyperSparc RT625 or RT626"},
- /* ECL Implementation, CRAY S-MP Supercomputer... AIEEE! */
- /* Someone please write the code to support this beast! ;) */
- { 2, 0, "Bipolar Integrated Technology - B5010"},
- { 3, 0, "LSI Logic Corporation - unknown-type"},
- { 4, 0, "Texas Instruments, Inc. - SuperSparc-(II)"},
- /* SparcClassic -- borned STP1010TAB-50*/
- { 4, 1, "Texas Instruments, Inc. - MicroSparc"},
- { 4, 2, "Texas Instruments, Inc. - MicroSparc II"},
- { 4, 3, "Texas Instruments, Inc. - SuperSparc 51"},
- { 4, 4, "Texas Instruments, Inc. - SuperSparc 61"},
- { 4, 5, "Texas Instruments, Inc. - unknown"},
- { 5, 0, "Matsushita - MN10501"},
- { 6, 0, "Philips Corporation - unknown"},
- { 7, 0, "Harvest VLSI Design Center, Inc. - unknown"},
- /* Gallium arsenide 200MHz, BOOOOGOOOOMIPS!!! */
- { 8, 0, "Systems and Processes Engineering Corporation (SPEC)"},
- { 9, 0, "Fujitsu or Weitek Power-UP"},
- { 9, 1, "Fujitsu or Weitek Power-UP"},
- { 9, 2, "Fujitsu or Weitek Power-UP"},
- { 9, 3, "Fujitsu or Weitek Power-UP"},
- { 0xa, 0, "UNKNOWN CPU-VENDOR/TYPE"},
- { 0xb, 0, "UNKNOWN CPU-VENDOR/TYPE"},
- { 0xc, 0, "UNKNOWN CPU-VENDOR/TYPE"},
- { 0xd, 0, "UNKNOWN CPU-VENDOR/TYPE"},
- { 0xe, 0, "UNKNOWN CPU-VENDOR/TYPE"},
- { 0xf, 0, "UNKNOWN CPU-VENDOR/TYPE"},
-};
+const char *sparc_cpu_type;
+const char *sparc_fpu_type;
-#define NSPARCCHIPS ARRAY_SIZE(linux_sparc_chips)
+unsigned int fsr_storage;
-char *sparc_cpu_type;
-char *sparc_fpu_type;
+static void set_cpu_and_fpu(int psr_impl, int psr_vers, int fpu_vers)
+{
+ sparc_cpu_type = NULL;
+ sparc_fpu_type = NULL;
+ if (psr_impl < ARRAY_SIZE(manufacturer_info))
+ {
+ const struct cpu_info *cpu;
+ const struct fpu_info *fpu;
-unsigned int fsr_storage;
+ cpu = &manufacturer_info[psr_impl].cpu_info[0];
+ while (cpu->psr_vers != -1)
+ {
+ if (cpu->psr_vers == psr_vers) {
+ sparc_cpu_type = cpu->name;
+ sparc_fpu_type = "No FPU";
+ break;
+ }
+ cpu++;
+ }
+ fpu = &manufacturer_info[psr_impl].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";
+ }
+}
+#ifdef CONFIG_SPARC32
void __cpuinit cpu_probe(void)
{
int psr_impl, psr_vers, fpu_vers;
- int i, psr;
+ int psr;
- psr_impl = ((get_psr()>>28)&0xf);
- psr_vers = ((get_psr()>>24)&0xf);
+ psr_impl = ((get_psr() >> 28) & 0xf);
+ psr_vers = ((get_psr() >> 24) & 0xf);
psr = get_psr();
put_psr(psr | PSR_EF);
- fpu_vers = ((get_fsr()>>17)&0x7);
+ fpu_vers = ((get_fsr() >> 17) & 0x7);
put_psr(psr);
- for(i = 0; i<NSPARCCHIPS; i++) {
- if(linux_sparc_chips[i].psr_impl == psr_impl)
- if(linux_sparc_chips[i].psr_vers == psr_vers) {
- sparc_cpu_type = linux_sparc_chips[i].cpu_name;
- break;
- }
- }
+ 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";
+ break;
- if(i==NSPARCCHIPS)
- printk("DEBUG: psr.impl = 0x%x psr.vers = 0x%x\n", psr_impl,
- psr_vers);
+ case SUN4V_CHIP_NIAGARA2:
+ sparc_cpu_type = "UltraSparc T2 (Niagara2)";
+ sparc_fpu_type = "UltraSparc T2 integrated FPU";
+ break;
- for(i = 0; i<NSPARCFPU; i++) {
- if(linux_sparc_fpu[i].psr_impl == psr_impl)
- if(linux_sparc_fpu[i].fp_vers == fpu_vers) {
- sparc_fpu_type = linux_sparc_fpu[i].fp_name;
- 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;
- if(i == NSPARCFPU) {
- printk("DEBUG: psr.impl = 0x%x fsr.vers = 0x%x\n", psr_impl,
- fpu_vers);
- sparc_fpu_type = linux_sparc_fpu[31].fp_name;
+ __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
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.