search for: cyc2ns_scale_factor

...0000 -0800 +++ linux-2.6.16-rc6/arch/i386/kernel/timers/common.c 2006-03-12 19:57:42.000000000 -0800 @@ -14,6 +14,15 @@ #include "mach_timer.h" +unsigned long cyc2ns_scale; +unsigned long cyc2us_scale; + +void set_cyc_scales(unsigned long cpu_mhz) +{ + cyc2ns_scale = (1000 << CYC2NS_SCALE_FACTOR)/cpu_mhz; + cyc2us_scale = (1 << CYC2US_SCALE_FACTOR)/cpu_mhz; +} + /* ------ Calibrate the TSC ------- * Return 2^32 * (1 / (TSC clocks per usec)) for do_fast_gettimeoffset(). * Too much 64-bit arithmetic here to do this cleanly in C, and for Index: linux-2.6.16-rc6/arch/i386/kernel/tim...

...0000 -0800 +++ linux-2.6.16-rc6/arch/i386/kernel/timers/common.c 2006-03-12 19:57:42.000000000 -0800 @@ -14,6 +14,15 @@ #include "mach_timer.h" +unsigned long cyc2ns_scale; +unsigned long cyc2us_scale; + +void set_cyc_scales(unsigned long cpu_mhz) +{ + cyc2ns_scale = (1000 << CYC2NS_SCALE_FACTOR)/cpu_mhz; + cyc2us_scale = (1 << CYC2US_SCALE_FACTOR)/cpu_mhz; +} + /* ------ Calibrate the TSC ------- * Return 2^32 * (1 / (TSC clocks per usec)) for do_fast_gettimeoffset(). * Too much 64-bit arithmetic here to do this cleanly in C, and for Index: linux-2.6.16-rc6/arch/i386/kernel/tim...

...-- a/arch/i386/kernel/tsc.c +++ b/arch/i386/kernel/tsc.c @@ -81,7 +81,7 @@ static inline int check_tsc_unstable(voi * * -johnstul@us.ibm.com "math is hard, lets go shopping!" */ -static unsigned long cyc2ns_scale __read_mostly; +unsigned long cyc2ns_scale __read_mostly; #define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */ @@ -90,15 +90,10 @@ static inline void set_cyc2ns_scale(unsi cyc2ns_scale = (1000000 << CYC2NS_SCALE_FACTOR)/cpu_khz; } -static inline unsigned long long cycles_2_ns(unsigned long long cyc) -{ - return (cyc * cyc2ns_scale) >> CYC2NS_SCALE_FACTOR; -...

...-- a/arch/i386/kernel/tsc.c +++ b/arch/i386/kernel/tsc.c @@ -81,7 +81,7 @@ static inline int check_tsc_unstable(voi * * -johnstul@us.ibm.com "math is hard, lets go shopping!" */ -static unsigned long cyc2ns_scale __read_mostly; +unsigned long cyc2ns_scale __read_mostly; #define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */ @@ -90,15 +90,10 @@ static inline void set_cyc2ns_scale(unsi cyc2ns_scale = (1000000 << CYC2NS_SCALE_FACTOR)/cpu_khz; } -static inline unsigned long long cycles_2_ns(unsigned long long cyc) -{ - return (cyc * cyc2ns_scale) >> CYC2NS_SCALE_FACTOR; -...

Lguest currently requires a TSC, which breaks older machines and Matt Mackall who boots the host with "notsc". In addition, there is no good solution to changing TSC speeds (informing all the guests about the TSC impending change before it happens would be a great deal of code and have issues with disobedient guests). This patch makes the host determine if the TSC is both constant and

Lguest currently requires a TSC, which breaks older machines and Matt Mackall who boots the host with "notsc". In addition, there is no good solution to changing TSC speeds (informing all the guests about the TSC impending change before it happens would be a great deal of code and have issues with disobedient guests). This patch makes the host determine if the TSC is both constant and

Hi Andi, Here's a repost of the paravirt_ops update series I posted the other day. Since then, I found a few potential bugs with patching clobbering, cleaned up and documented paravirt.h and the patching machinery. Overview: add-MAINTAINERS.patch obvious remove-CONFIG_DEBUG_PARAVIRT.patch No longer meaningful or needed. paravirt-nop.patch Clean up nop paravirt_ops functions, mainly to

Hi Andi, Here's a repost of the paravirt_ops update series I posted the other day. Since then, I found a few potential bugs with patching clobbering, cleaned up and documented paravirt.h and the patching machinery. Overview: add-MAINTAINERS.patch obvious remove-CONFIG_DEBUG_PARAVIRT.patch No longer meaningful or needed. paravirt-nop.patch Clean up nop paravirt_ops functions, mainly to

Hi Andi, This is a set of updates for the firstfloor patch queue. Quick rundown: revert-mm-x86_64-mm-account-for-module-percpu-space-separately-from-kernel-percpu.patch separate-module-percpu-space.patch Update the module percpu accounting patch fix-ff-allow-percpu-variables-to-be-page-aligned.patch Make sure the percpu memory allocation is page-aligned

Hi Andi, This is a set of updates for the firstfloor patch queue. Quick rundown: revert-mm-x86_64-mm-account-for-module-percpu-space-separately-from-kernel-percpu.patch separate-module-percpu-space.patch Update the module percpu accounting patch fix-ff-allow-percpu-variables-to-be-page-aligned.patch Make sure the percpu memory allocation is page-aligned

Hi Andi, This series of patches updates paravirt_ops in various ways. Some of the changes are plain cleanups and improvements, and some add some interfaces necessary for Xen. The brief overview: add-MAINTAINERS.patch - obvious remove-CONFIG_DEBUG_PARAVIRT.patch - no longer needed paravirt-nop.patch - mark nop operations consistently paravirt-pte-accessors.patch - operations to pack/unpack

Hi Andi, This series of patches updates paravirt_ops in various ways. Some of the changes are plain cleanups and improvements, and some add some interfaces necessary for Xen. The brief overview: add-MAINTAINERS.patch - obvious remove-CONFIG_DEBUG_PARAVIRT.patch - no longer needed paravirt-nop.patch - mark nop operations consistently paravirt-pte-accessors.patch - operations to pack/unpack