From: Anton Blanchard <anton@samba.org>
To: Paul Mackerras <paulus@samba.org>
Cc: linuxppc-dev@ozlabs.org
Subject: Add SPURR SPR to sysfs
Date: Fri, 8 Dec 2006 17:51:13 +1100 [thread overview]
Message-ID: <20061208065113.GB29167@krispykreme> (raw)
In-Reply-To: <20061208054106.GB9391@krispykreme>
Now we have a SPURR cpu feature bit, we can export it to userspace in
sysfs.
Signed-off-by: Anton Blanchard <anton@samba.org>
---
Index: linux-2.6/arch/powerpc/kernel/sysfs.c
===================================================================
--- linux-2.6.orig/arch/powerpc/kernel/sysfs.c 2006-12-08 00:07:35.000000000 -0600
+++ linux-2.6/arch/powerpc/kernel/sysfs.c 2006-12-08 00:08:50.000000000 -0600
@@ -181,6 +181,7 @@
SYSFS_PMCSETUP(pmc7, SPRN_PMC7);
SYSFS_PMCSETUP(pmc8, SPRN_PMC8);
SYSFS_PMCSETUP(purr, SPRN_PURR);
+SYSFS_PMCSETUP(spurr, SPRN_SPURR);
SYSFS_PMCSETUP(dscr, SPRN_DSCR);
static SYSDEV_ATTR(mmcr0, 0600, show_mmcr0, store_mmcr0);
@@ -195,6 +196,7 @@
static SYSDEV_ATTR(pmc7, 0600, show_pmc7, store_pmc7);
static SYSDEV_ATTR(pmc8, 0600, show_pmc8, store_pmc8);
static SYSDEV_ATTR(purr, 0600, show_purr, NULL);
+static SYSDEV_ATTR(spurr, 0600, show_spurr, NULL);
static SYSDEV_ATTR(dscr, 0600, show_dscr, store_dscr);
static void register_cpu_online(unsigned int cpu)
@@ -234,6 +236,9 @@
if (cpu_has_feature(CPU_FTR_PURR))
sysdev_create_file(s, &attr_purr);
+ if (cpu_has_feature(CPU_FTR_SPURR))
+ sysdev_create_file(s, &attr_spurr);
+
if (cpu_has_feature(CPU_FTR_DSCR))
sysdev_create_file(s, &attr_dscr);
}
@@ -278,6 +283,9 @@
if (cpu_has_feature(CPU_FTR_PURR))
sysdev_remove_file(s, &attr_purr);
+ if (cpu_has_feature(CPU_FTR_SPURR))
+ sysdev_remove_file(s, &attr_spurr);
+
if (cpu_has_feature(CPU_FTR_DSCR))
sysdev_remove_file(s, &attr_dscr);
}
Index: linux-2.6/include/asm-powerpc/reg.h
===================================================================
--- linux-2.6.orig/include/asm-powerpc/reg.h 2006-12-08 00:34:29.000000000 -0600
+++ linux-2.6/include/asm-powerpc/reg.h 2006-12-08 00:35:35.000000000 -0600
@@ -164,6 +164,7 @@
#define SPRN_TBRU 0x10D /* Time Base Read Upper Register (user, R/O) */
#define SPRN_TBWL 0x11C /* Time Base Lower Register (super, R/W) */
#define SPRN_TBWU 0x11D /* Time Base Upper Register (super, R/W) */
+#define SPRN_SPURR 0x134 /* Scaled PURR */
#define SPRN_HIOR 0x137 /* 970 Hypervisor interrupt offset */
#define SPRN_DBAT0L 0x219 /* Data BAT 0 Lower Register */
#define SPRN_DBAT0U 0x218 /* Data BAT 0 Upper Register */
prev parent reply other threads:[~2006-12-08 6:51 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-06 20:58 Add DSCR SPR to sysfs Anton Blanchard
2006-12-08 5:13 ` Paul Mackerras
2006-12-08 5:41 ` Anton Blanchard
2006-12-08 6:46 ` Anton Blanchard
2006-12-08 6:51 ` Anton Blanchard [this message]
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