This is a note to let you know that I've just added the patch titled
sparc64: correctly recognise M6 and M7 cpu type
to the 3.16-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
sparc64-correctly-recognise-m6-and-m7-cpu-type.patch
and it can be found in the queue-3.16 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Tue Oct 28 11:19:22 CST 2014
From: Allen Pais <allen.pais@xxxxxxxxxx>
Date: Mon, 8 Sep 2014 11:48:53 +0530
Subject: sparc64: correctly recognise M6 and M7 cpu type
From: Allen Pais <allen.pais@xxxxxxxxxx>
The following patch adds support for correctly
recognising M6 and M7 cpu type.
Signed-off-by: Allen Pais <allen.pais@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/sparc/include/asm/spitfire.h | 2 ++
arch/sparc/kernel/cpu.c | 12 ++++++++++++
arch/sparc/kernel/head_64.S | 12 ++++++++++++
3 files changed, 26 insertions(+)
--- a/arch/sparc/include/asm/spitfire.h
+++ b/arch/sparc/include/asm/spitfire.h
@@ -45,6 +45,8 @@
#define SUN4V_CHIP_NIAGARA3 0x03
#define SUN4V_CHIP_NIAGARA4 0x04
#define SUN4V_CHIP_NIAGARA5 0x05
+#define SUN4V_CHIP_SPARC_M6 0x06
+#define SUN4V_CHIP_SPARC_M7 0x07
#define SUN4V_CHIP_SPARC64X 0x8a
#define SUN4V_CHIP_UNKNOWN 0xff
--- a/arch/sparc/kernel/cpu.c
+++ b/arch/sparc/kernel/cpu.c
@@ -494,6 +494,18 @@ static void __init sun4v_cpu_probe(void)
sparc_pmu_type = "niagara5";
break;
+ case SUN4V_CHIP_SPARC_M6:
+ sparc_cpu_type = "SPARC-M6";
+ sparc_fpu_type = "SPARC-M6 integrated FPU";
+ sparc_pmu_type = "sparc-m6";
+ break;
+
+ case SUN4V_CHIP_SPARC_M7:
+ sparc_cpu_type = "SPARC-M7";
+ sparc_fpu_type = "SPARC-M7 integrated FPU";
+ sparc_pmu_type = "sparc-m7";
+ break;
+
case SUN4V_CHIP_SPARC64X:
sparc_cpu_type = "SPARC64-X";
sparc_fpu_type = "SPARC64-X integrated FPU";
--- a/arch/sparc/kernel/head_64.S
+++ b/arch/sparc/kernel/head_64.S
@@ -427,6 +427,12 @@ sun4v_chip_type:
cmp %g2, '5'
be,pt %xcc, 5f
mov SUN4V_CHIP_NIAGARA5, %g4
+ cmp %g2, '6'
+ be,pt %xcc, 5f
+ mov SUN4V_CHIP_SPARC_M6, %g4
+ cmp %g2, '7'
+ be,pt %xcc, 5f
+ mov SUN4V_CHIP_SPARC_M7, %g4
ba,pt %xcc, 49f
nop
@@ -585,6 +591,12 @@ niagara_tlb_fixup:
cmp %g1, SUN4V_CHIP_NIAGARA5
be,pt %xcc, niagara4_patch
nop
+ cmp %g1, SUN4V_CHIP_SPARC_M6
+ be,pt %xcc, niagara4_patch
+ nop
+ cmp %g1, SUN4V_CHIP_SPARC_M7
+ be,pt %xcc, niagara4_patch
+ nop
call generic_patch_copyops
nop
Patches currently in stable-queue which might be from allen.pais@xxxxxxxxxx are
queue-3.16/sparc64-support-m6-and-m7-for-building-cpu-distribution-map.patch
queue-3.16/sparc64-cpu-hardware-caps-support-for-sparc-m6-and-m7.patch
queue-3.16/sparc64-correctly-recognise-m6-and-m7-cpu-type.patch
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