Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/arch/sparc64/kernel/cpu.c b/arch/sparc64/kernel/cpu.c
new file mode 100644
index 0000000..4875695
--- /dev/null
+++ b/arch/sparc64/kernel/cpu.c
@@ -0,0 +1,124 @@
+/* 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/config.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/smp.h>
+#include <asm/asi.h>
+#include <asm/system.h>
+#include <asm/fpumacro.h>
+#include <asm/cpudata.h>
+
+DEFINE_PER_CPU(cpuinfo_sparc, __cpu_data) = { 0 };
+
+struct cpu_iu_info {
+ short manuf;
+ short impl;
+ char* cpu_name; /* should be enough I hope... */
+};
+
+struct cpu_fp_info {
+ short manuf;
+ short impl;
+ char fpu_vers;
+ char* fp_name;
+};
+
+struct cpu_fp_info linux_sparc_fpu[] = {
+ { 0x17, 0x10, 0, "UltraSparc I integrated FPU"},
+ { 0x22, 0x10, 0, "UltraSparc I integrated FPU"},
+ { 0x17, 0x11, 0, "UltraSparc II integrated FPU"},
+ { 0x17, 0x12, 0, "UltraSparc IIi integrated FPU"},
+ { 0x17, 0x13, 0, "UltraSparc IIe integrated FPU"},
+ { 0x3e, 0x14, 0, "UltraSparc III integrated FPU"},
+ { 0x3e, 0x15, 0, "UltraSparc III+ integrated FPU"},
+ { 0x3e, 0x16, 0, "UltraSparc IIIi integrated FPU"},
+ { 0x3e, 0x18, 0, "UltraSparc IV integrated FPU"},
+};
+
+#define NSPARCFPU (sizeof(linux_sparc_fpu)/sizeof(struct cpu_fp_info))
+
+struct cpu_iu_info linux_sparc_chips[] = {
+ { 0x17, 0x10, "TI UltraSparc I (SpitFire)"},
+ { 0x22, 0x10, "TI UltraSparc I (SpitFire)"},
+ { 0x17, 0x11, "TI UltraSparc II (BlackBird)"},
+ { 0x17, 0x12, "TI UltraSparc IIi (Sabre)"},
+ { 0x17, 0x13, "TI UltraSparc IIe (Hummingbird)"},
+ { 0x3e, 0x14, "TI UltraSparc III (Cheetah)"},
+ { 0x3e, 0x15, "TI UltraSparc III+ (Cheetah+)"},
+ { 0x3e, 0x16, "TI UltraSparc IIIi (Jalapeno)"},
+ { 0x3e, 0x18, "TI UltraSparc IV (Jaguar)"},
+};
+
+#define NSPARCCHIPS (sizeof(linux_sparc_chips)/sizeof(struct cpu_iu_info))
+
+char *sparc_cpu_type = "cpu-oops";
+char *sparc_fpu_type = "fpu-oops";
+
+unsigned int fsr_storage;
+
+void __init cpu_probe(void)
+{
+ unsigned long ver, fpu_vers, manuf, impl, fprs;
+ int i;
+
+ fprs = fprs_read();
+ fprs_write(FPRS_FEF);
+ __asm__ __volatile__ ("rdpr %%ver, %0; stx %%fsr, [%1]"
+ : "=&r" (ver)
+ : "r" (&fpu_vers));
+ fprs_write(fprs);
+
+ manuf = ((ver >> 48) & 0xffff);
+ impl = ((ver >> 32) & 0xffff);
+
+ fpu_vers = ((fpu_vers >> 17) & 0x7);
+
+retry:
+ for (i = 0; i < NSPARCCHIPS; i++) {
+ if (linux_sparc_chips[i].manuf == manuf) {
+ if (linux_sparc_chips[i].impl == impl) {
+ sparc_cpu_type =
+ linux_sparc_chips[i].cpu_name;
+ break;
+ }
+ }
+ }
+
+ if (i == NSPARCCHIPS) {
+ /* Maybe it is a cheetah+ derivative, report it as cheetah+
+ * in that case until we learn the real names.
+ */
+ if (manuf == 0x3e &&
+ impl > 0x15) {
+ impl = 0x15;
+ goto retry;
+ } else {
+ printk("DEBUG: manuf[%lx] impl[%lx]\n",
+ manuf, impl);
+ }
+ sparc_cpu_type = "Unknown CPU";
+ }
+
+ for (i = 0; i < NSPARCFPU; i++) {
+ if (linux_sparc_fpu[i].manuf == manuf &&
+ linux_sparc_fpu[i].impl == impl) {
+ if (linux_sparc_fpu[i].fpu_vers == fpu_vers) {
+ sparc_fpu_type =
+ linux_sparc_fpu[i].fp_name;
+ break;
+ }
+ }
+ }
+
+ if (i == NSPARCFPU) {
+ printk("DEBUG: manuf[%lx] impl[%lx] fsr.vers[%lx]\n",
+ manuf, impl, fpu_vers);
+ sparc_fpu_type = "Unknown FPU";
+ }
+}