o use cpu_32.c as base
o move all sparc64 definitions to the common cpu.c
o use ifdef for the parts that differs and use cpu_32 as base
o spitfire.h required a CONFIG_SPARC64 guard to fix build on 32 bit
Signed-off-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
---
This is build tested only!
I need to get a sparc system soon if I shall continue this...
Sam
arch/sparc/include/asm/spitfire.h | 4 +-
arch/sparc/kernel/Makefile | 2 +-
arch/sparc/kernel/{cpu_32.c => cpu.c} | 91 ++++++++++++++++++
arch/sparc/kernel/cpu_64.c | 167 ---------------------------------
4 files changed, 95 insertions(+), 169 deletions(-)
rename arch/sparc/kernel/{cpu_32.c => cpu.c} (70%)
delete mode 100644 arch/sparc/kernel/cpu_64.c
diff --git a/arch/sparc/include/asm/spitfire.h b/arch/sparc/include/asm/spitfire.h
index 985ea7e..f0d0c40 100644
--- a/arch/sparc/include/asm/spitfire.h
+++ b/arch/sparc/include/asm/spitfire.h
@@ -6,6 +6,8 @@
#ifndef _SPARC64_SPITFIRE_H
#define _SPARC64_SPITFIRE_H
+#ifdef CONFIG_SPARC64
+
#include <asm/asi.h>
/* The following register addresses are accessible via ASI_DMMU
@@ -338,5 +340,5 @@ static inline void cheetah_put_itlb_data(int entry, unsigned long data)
}
#endif /* !(__ASSEMBLY__) */
-
+#endif /* CONFIG_SPARC64 */
#endif /* !(_SPARC64_SPITFIRE_H) */
diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
index 04c74d0..0ba314b 100644
--- a/arch/sparc/kernel/Makefile
+++ b/arch/sparc/kernel/Makefile
@@ -27,7 +27,7 @@ obj-y += sys_sparc_$(BITS).o
obj-$(CONFIG_SPARC32) += systbls_32.o
obj-y += time_$(BITS).o
obj-$(CONFIG_SPARC32) += windows.o
-obj-y += cpu_$(BITS).o
+obj-y += cpu.o
obj-$(CONFIG_SPARC32) += devices.o
obj-$(CONFIG_SPARC32) += tadpole.o
obj-$(CONFIG_SPARC32) += tick14.o
diff --git a/arch/sparc/kernel/cpu_32.c b/arch/sparc/kernel/cpu.c
similarity index 70%
rename from arch/sparc/kernel/cpu_32.c
rename to arch/sparc/kernel/cpu.c
index 6052822..6c2da24 100644
--- a/arch/sparc/kernel/cpu_32.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>
@@ -176,6 +178,52 @@ static const struct manufacturer_info __initconst manufacturer_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
@@ -230,6 +278,7 @@ static void set_cpu_and_fpu(int psr_impl, int psr_vers, int fpu_vers)
}
}
+#ifdef CONFIG_SPARC32
void __cpuinit cpu_probe(void)
{
int psr_impl, psr_vers, fpu_vers;
@@ -245,3 +294,45 @@ void __cpuinit cpu_probe(void)
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;
+
+ case SUN4V_CHIP_NIAGARA2:
+ sparc_cpu_type = "UltraSparc T2 (Niagara2)";
+ sparc_fpu_type = "UltraSparc T2 integrated FPU";
+ 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
diff --git a/arch/sparc/kernel/cpu_64.c b/arch/sparc/kernel/cpu_64.c
deleted file mode 100644
index 4a81ed7..0000000
--- a/arch/sparc/kernel/cpu_64.c
+++ /dev/null
@@ -1,167 +0,0 @@
-/* cpu.c: Dinky routines to look for the kind of Sparc cpu
- * we are on.
- *
- * Copyright (C) 1996, 2007, 2008 David S. Miller (davem@xxxxxxxxxxxxx)
- */
-
-#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>
-#include <asm/spitfire.h>
-#include <asm/oplib.h>
-
-#include "entry.h"
-#include "kernel.h"
-
-DEFINE_PER_CPU(cpuinfo_sparc, __cpu_data) = { 0 };
-
-struct cpu_chip_info {
- unsigned short manuf;
- unsigned short impl;
- const char *cpu_name;
- const char *fp_name;
-};
-
-static const struct cpu_chip_info cpu_chips[] = {
- {
- .manuf = 0x17,
- .impl = 0x10,
- .cpu_name = "TI UltraSparc I (SpitFire)",
- .fp_name = "UltraSparc I integrated FPU",
- },
- {
- .manuf = 0x22,
- .impl = 0x10,
- .cpu_name = "TI UltraSparc I (SpitFire)",
- .fp_name = "UltraSparc I integrated FPU",
- },
- {
- .manuf = 0x17,
- .impl = 0x11,
- .cpu_name = "TI UltraSparc II (BlackBird)",
- .fp_name = "UltraSparc II integrated FPU",
- },
- {
- .manuf = 0x17,
- .impl = 0x12,
- .cpu_name = "TI UltraSparc IIi (Sabre)",
- .fp_name = "UltraSparc IIi integrated FPU",
- },
- {
- .manuf = 0x17,
- .impl = 0x13,
- .cpu_name = "TI UltraSparc IIe (Hummingbird)",
- .fp_name = "UltraSparc IIe integrated FPU",
- },
- {
- .manuf = 0x3e,
- .impl = 0x14,
- .cpu_name = "TI UltraSparc III (Cheetah)",
- .fp_name = "UltraSparc III integrated FPU",
- },
- {
- .manuf = 0x3e,
- .impl = 0x15,
- .cpu_name = "TI UltraSparc III+ (Cheetah+)",
- .fp_name = "UltraSparc III+ integrated FPU",
- },
- {
- .manuf = 0x3e,
- .impl = 0x16,
- .cpu_name = "TI UltraSparc IIIi (Jalapeno)",
- .fp_name = "UltraSparc IIIi integrated FPU",
- },
- {
- .manuf = 0x3e,
- .impl = 0x18,
- .cpu_name = "TI UltraSparc IV (Jaguar)",
- .fp_name = "UltraSparc IV integrated FPU",
- },
- {
- .manuf = 0x3e,
- .impl = 0x19,
- .cpu_name = "TI UltraSparc IV+ (Panther)",
- .fp_name = "UltraSparc IV+ integrated FPU",
- },
- {
- .manuf = 0x3e,
- .impl = 0x22,
- .cpu_name = "TI UltraSparc IIIi+ (Serrano)",
- .fp_name = "UltraSparc IIIi+ integrated FPU",
- },
-};
-
-#define NSPARCCHIPS ARRAY_SIZE(linux_sparc_chips)
-
-const char *sparc_cpu_type;
-const char *sparc_fpu_type;
-
-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;
-
- case SUN4V_CHIP_NIAGARA2:
- sparc_cpu_type = "UltraSparc T2 (Niagara2)";
- sparc_fpu_type = "UltraSparc T2 integrated FPU";
- 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 const struct cpu_chip_info * __init find_cpu_chip(unsigned short manuf,
- unsigned short impl)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(cpu_chips); i++) {
- const struct cpu_chip_info *p = &cpu_chips[i];
-
- if (p->manuf == manuf && p->impl == impl)
- return p;
- }
- return NULL;
-}
-
-static int __init cpu_type_probe(void)
-{
- if (tlb_type == hypervisor) {
- sun4v_cpu_probe();
- } else {
- unsigned long ver, manuf, impl;
- const struct cpu_chip_info *p;
-
- __asm__ __volatile__("rdpr %%ver, %0" : "=r" (ver));
-
- manuf = ((ver >> 48) & 0xffff);
- impl = ((ver >> 32) & 0xffff);
-
- p = find_cpu_chip(manuf, impl);
- if (p) {
- sparc_cpu_type = p->cpu_name;
- sparc_fpu_type = p->fp_name;
- } else {
- printk(KERN_ERR "CPU: Unknown chip, manuf[%lx] impl[%lx]\n",
- manuf, impl);
- sparc_cpu_type = "Unknown CPU";
- sparc_fpu_type = "Unknown FPU";
- }
- }
- return 0;
-}
-
-arch_initcall(cpu_type_probe);
--
1.5.6.GIT
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