From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Fri, 8 Dec 2006 17:51:13 +1100 From: Anton Blanchard To: Paul Mackerras Subject: Add SPURR SPR to sysfs Message-ID: <20061208065113.GB29167@krispykreme> References: <20061206205818.GA27857@krispykreme> <17784.62591.729512.791358@cargo.ozlabs.ibm.com> <20061208054106.GB9391@krispykreme> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20061208054106.GB9391@krispykreme> Cc: linuxppc-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Now we have a SPURR cpu feature bit, we can export it to userspace in sysfs. Signed-off-by: Anton Blanchard --- 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 */