> Date: Sat, 24 Sep 2016 14:07:00 +1000
> From: Jonathan Gray <[email protected]>
>
> On Fri, Sep 23, 2016 at 01:43:04PM +0200, Mark Kettenis wrote:
> > Index: arch/arm/arm/cpu.c
> > ===================================================================
> > RCS file: /cvs/src/sys/arch/arm/arm/cpu.c,v
> > retrieving revision 1.32
> > diff -u -p -r1.32 cpu.c
> > --- arch/arm/arm/cpu.c 14 Aug 2016 11:30:54 -0000 1.32
> > +++ arch/arm/arm/cpu.c 23 Sep 2016 11:32:51 -0000
> > @@ -103,16 +103,6 @@ static const char * const pxa2x0_steppin
> > "rev 12", "rev 13", "rev 14", "rev 15"
> > };
> >
> > -/* Steppings for PXA255/26x.
> > - * rev 5: PXA26x B0, rev 6: PXA255 A0
> > - */
> > -static const char * const pxa255_steppings[16] = {
> > - "rev 0", "rev 1", "rev 2", "step A-0",
> > - "rev 4", "step B-0", "step A-0", "rev 7",
> > - "rev 8", "rev 9", "rev 10", "rev 11",
> > - "rev 12", "rev 13", "rev 14", "rev 15"
> > -};
>
> Why not just remove all the pxa/xscale bits from cpu/cpufunc?
I committed the previous diff. So here is a diff that removes the
pxa/xscale bits. As a bonus I added an ARMv8 CPU class, such that we
don't misidentify those as ARMv7.
ok?
Index: arch/arm/arm/cpu.c
===================================================================
RCS file: /cvs/src/sys/arch/arm/arm/cpu.c,v
retrieving revision 1.33
diff -u -p -r1.33 cpu.c
--- arch/arm/arm/cpu.c 24 Sep 2016 13:03:47 -0000 1.33
+++ arch/arm/arm/cpu.c 24 Sep 2016 13:27:05 -0000
@@ -84,8 +84,8 @@ cpu_attach(struct device *dv)
enum cpu_class {
CPU_CLASS_NONE,
- CPU_CLASS_XSCALE,
- CPU_CLASS_ARMv7
+ CPU_CLASS_ARMv7,
+ CPU_CLASS_ARMv8
};
static const char * const generic_steppings[16] = {
@@ -95,22 +95,6 @@ static const char * const generic_steppi
"rev 12", "rev 13", "rev 14", "rev 15"
};
-/* Steppings for PXA2[15]0 */
-static const char * const pxa2x0_steppings[16] = {
- "step A-0", "step A-1", "step B-0", "step B-1",
- "step B-2", "step C-0", "rev 6", "rev 7",
- "rev 8", "rev 9", "rev 10", "rev 11",
- "rev 12", "rev 13", "rev 14", "rev 15"
-};
-
-/* Steppings for PXA270 */
-static const char * const pxa27x_steppings[16] = {
- "step A-0", "step A-1", "step B-0", "step B-1",
- "step C-0", "step ?", "step ?", "step C-5",
- "rev 8", "rev 9", "rev 10", "rev 11",
- "rev 12", "rev 13", "rev 14", "rev 15"
-};
-
struct cpuidtab {
u_int32_t cpuid;
enum cpu_class cpu_class;
@@ -119,21 +103,6 @@ struct cpuidtab {
};
const struct cpuidtab cpuids[] = {
- { CPU_ID_PXA250A, CPU_CLASS_XSCALE, "PXA250",
- pxa2x0_steppings },
- { CPU_ID_PXA210A, CPU_CLASS_XSCALE, "PXA210",
- pxa2x0_steppings },
- { CPU_ID_PXA250B, CPU_CLASS_XSCALE, "PXA250",
- pxa2x0_steppings },
- { CPU_ID_PXA210B, CPU_CLASS_XSCALE, "PXA210",
- pxa2x0_steppings },
- { CPU_ID_PXA250C, CPU_CLASS_XSCALE, "PXA250",
- pxa2x0_steppings },
- { CPU_ID_PXA27X, CPU_CLASS_XSCALE, "PXA27x",
- pxa27x_steppings },
- { CPU_ID_PXA210C, CPU_CLASS_XSCALE, "PXA210",
- pxa2x0_steppings },
-
{ CPU_ID_CORTEX_A5, CPU_CLASS_ARMv7, "ARM Cortex A5",
generic_steppings },
{ CPU_ID_CORTEX_A7, CPU_CLASS_ARMv7, "ARM Cortex A7",
@@ -171,21 +140,21 @@ const struct cpuidtab cpuids[] = {
{ CPU_ID_CORTEX_A17_R1, CPU_CLASS_ARMv7, "ARM Cortex A17 R1",
generic_steppings },
- { CPU_ID_CORTEX_A35, CPU_CLASS_ARMv7, "ARM Cortex A35",
+ { CPU_ID_CORTEX_A35, CPU_CLASS_ARMv8, "ARM Cortex A35",
generic_steppings },
- { CPU_ID_CORTEX_A53, CPU_CLASS_ARMv7, "ARM Cortex A53",
+ { CPU_ID_CORTEX_A53, CPU_CLASS_ARMv8, "ARM Cortex A53",
generic_steppings },
- { CPU_ID_CORTEX_A53_R1, CPU_CLASS_ARMv7, "ARM Cortex A53 R1",
+ { CPU_ID_CORTEX_A53_R1, CPU_CLASS_ARMv8, "ARM Cortex A53 R1",
generic_steppings },
- { CPU_ID_CORTEX_A57, CPU_CLASS_ARMv7, "ARM Cortex A57",
+ { CPU_ID_CORTEX_A57, CPU_CLASS_ARMv8, "ARM Cortex A57",
generic_steppings },
- { CPU_ID_CORTEX_A57_R1, CPU_CLASS_ARMv7, "ARM Cortex A57 R1",
+ { CPU_ID_CORTEX_A57_R1, CPU_CLASS_ARMv8, "ARM Cortex A57 R1",
generic_steppings },
- { CPU_ID_CORTEX_A72, CPU_CLASS_ARMv7, "ARM Cortex A72",
+ { CPU_ID_CORTEX_A72, CPU_CLASS_ARMv8, "ARM Cortex A72",
generic_steppings },
- { CPU_ID_CORTEX_A72_R1, CPU_CLASS_ARMv7, "ARM Cortex A72 R1",
+ { CPU_ID_CORTEX_A72_R1, CPU_CLASS_ARMv8, "ARM Cortex A72 R1",
generic_steppings },
- { CPU_ID_CORTEX_A73, CPU_CLASS_ARMv7, "ARM Cortex A73",
+ { CPU_ID_CORTEX_A73, CPU_CLASS_ARMv8, "ARM Cortex A73",
generic_steppings },
{ 0, CPU_CLASS_NONE, NULL, NULL }
@@ -196,11 +165,10 @@ struct cpu_classtab {
const char *class_option;
};
-const struct cpu_classtab cpu_classes[] = {
- { "unknown", NULL }, /* CPU_CLASS_NONE */
- { "XScale", "CPU_XSCALE_..." }, /* CPU_CLASS_XSCALE */
- { "ARMv7", "CPU_ARMv7" } /* CPU_CLASS_ARMv7 */
-
+const char *cpu_classes[] = {
+ "unknown", /* CPU_CLASS_NONE */
+ "ARMv7", /* CPU_CLASS_ARMv7 */
+ "ARMv8" /* CPU_CLASS_ARMv8 */
};
/*
@@ -249,7 +217,7 @@ identify_arm_cpu(struct device *dv, stru
"%s %s (%s core)", cpuids[i].cpu_name,
cpuids[i].cpu_steppings[cpuid &
CPU_ID_REVISION_MASK],
- cpu_classes[cpu_class].class_name);
+ cpu_classes[cpu_class]);
break;
}
@@ -262,8 +230,8 @@ identify_arm_cpu(struct device *dv, stru
printf("%s:", dv->dv_xname);
switch (cpu_class) {
- case CPU_CLASS_XSCALE:
case CPU_CLASS_ARMv7:
+ case CPU_CLASS_ARMv8:
if ((ci->ci_ctrl & CPU_CONTROL_DC_ENABLE) == 0)
printf(" DC disabled");
else
@@ -311,29 +279,16 @@ identify_arm_cpu(struct device *dv, stru
skip_pcache:
switch (cpu_class) {
-#ifdef CPU_ARMv7
case CPU_CLASS_ARMv7:
-#endif
-
-#if defined(CPU_XSCALE_PXA2X0)
- case CPU_CLASS_XSCALE:
-#endif
+ case CPU_CLASS_ARMv8:
break;
default:
- if (cpu_classes[cpu_class].class_option != NULL)
- printf("%s: %s does not fully support this CPU."
- "\n", dv->dv_xname, ostype);
- else {
- printf("%s: This kernel does not fully support "
- "this CPU.\n", dv->dv_xname);
- printf("%s: Recompile with \"options %s\" to "
- "correct this.\n", dv->dv_xname,
- cpu_classes[cpu_class].class_option);
- }
+ printf("%s: %s does not fully support this CPU."
+ "\n", dv->dv_xname, ostype);
break;
}
-
}
+
#ifdef MULTIPROCESSOR
int
cpu_alloc_idlepcb(struct cpu_info *ci)
