Commit 77f6c0b8 authored by Arnd Bergmann's avatar Arnd Bergmann
Browse files

timekeeping: remove arch_gettimeoffset 



With Arm EBSA110 gone, nothing uses it any more, so the corresponding
code and the Kconfig option can be removed.

Acked-by: default avatarThomas Gleixner <tglx@linutronix.de>
Reviewed-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parent 0d9dc745

Documentation/features/time/modern-timekeeping/arch-support.txt

deleted100644 → 0
+0 −33
Original line number Diff line number Diff line 
#

# Feature name:          modern-timekeeping

#         Kconfig:       !ARCH_USES_GETTIMEOFFSET

#         description:   arch does not use arch_gettimeoffset() anymore

#

    -----------------------

    |         arch |status|

    -----------------------

    |       alpha: |  ok  |

    |         arc: |  ok  |

    |         arm: | TODO |

    |       arm64: |  ok  |

    |         c6x: |  ok  |

    |        csky: |  ok  |

    |       h8300: |  ok  |

    |     hexagon: |  ok  |

    |        ia64: |  ok  |

    |        m68k: |  ok  |

    |  microblaze: |  ok  |

    |        mips: |  ok  |

    |       nds32: |  ok  |

    |       nios2: |  ok  |

    |    openrisc: |  ok  |

    |      parisc: |  ok  |

    |     powerpc: |  ok  |

    |       riscv: |  ok  |

    |        s390: |  ok  |

    |          sh: |  ok  |

    |       sparc: |  ok  |

    |          um: |  ok  |

    |         x86: |  ok  |

    |      xtensa: |  ok  |

    -----------------------

drivers/Makefile

+0 −2
Original line number Diff line number Diff line
@@ -135,9 +135,7 @@ obj-$(CONFIG_INFINIBAND) += infiniband/ 
obj-y				+= firmware/

obj-$(CONFIG_CRYPTO)		+= crypto/

obj-$(CONFIG_SUPERH)		+= sh/

ifndef CONFIG_ARCH_USES_GETTIMEOFFSET

obj-y				+= clocksource/

endif

obj-$(CONFIG_DCA)		+= dca/

obj-$(CONFIG_HID)		+= hid/

obj-$(CONFIG_PPC_PS3)		+= ps3/

drivers/clocksource/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -563,7 +563,7 @@ config CLKSRC_QCOM 


config CLKSRC_VERSATILE

	bool "ARM Versatile (Express) reference platforms clock source" if COMPILE_TEST

	depends on GENERIC_SCHED_CLOCK && !ARCH_USES_GETTIMEOFFSET

	depends on GENERIC_SCHED_CLOCK

	select TIMER_OF

	default y if (ARCH_VEXPRESS || ARCH_VERSATILE) && ARM

	help

include/linux/time.h

+0 −13
Original line number Diff line number Diff line
@@ -21,19 +21,6 @@ extern time64_t mktime64(const unsigned int year, const unsigned int mon, 
			const unsigned int day, const unsigned int hour,

			const unsigned int min, const unsigned int sec);



/* Some architectures do not supply their own clocksource.

 * This is mainly the case in architectures that get their

 * inter-tick times by reading the counter on their interval

 * timer. Since these timers wrap every tick, they're not really

 * useful as clocksources. Wrapping them to act like one is possible

 * but not very efficient. So we provide a callout these arches

 * can implement for use with the jiffies clocksource to provide

 * finer then tick granular time.

 */

#ifdef CONFIG_ARCH_USES_GETTIMEOFFSET

extern u32 (*arch_gettimeoffset)(void);

#endif



#ifdef CONFIG_POSIX_TIMERS

extern void clear_itimer(void);

#else

kernel/time/Kconfig

+0 −9
Original line number Diff line number Diff line
@@ -26,10 +26,6 @@ config CLOCKSOURCE_VALIDATE_LAST_CYCLE 
config GENERIC_TIME_VSYSCALL

	bool



# Old style timekeeping

config ARCH_USES_GETTIMEOFFSET

	bool



# The generic clock events infrastructure

config GENERIC_CLOCKEVENTS

	bool
@@ -72,7 +68,6 @@ config TICK_ONESHOT 


config NO_HZ_COMMON

	bool

	depends on !ARCH_USES_GETTIMEOFFSET && GENERIC_CLOCKEVENTS

	select TICK_ONESHOT



choice
@@ -87,7 +82,6 @@ config HZ_PERIODIC 


config NO_HZ_IDLE

	bool "Idle dynticks system (tickless idle)"

	depends on !ARCH_USES_GETTIMEOFFSET && GENERIC_CLOCKEVENTS

	select NO_HZ_COMMON

	help

	  This option enables a tickless idle system: timer interrupts
@@ -99,7 +93,6 @@ config NO_HZ_IDLE 
config NO_HZ_FULL

	bool "Full dynticks system (tickless)"

	# NO_HZ_COMMON dependency

	depends on !ARCH_USES_GETTIMEOFFSET && GENERIC_CLOCKEVENTS

	# We need at least one periodic CPU for timekeeping

	depends on SMP

	depends on HAVE_CONTEXT_TRACKING
@@ -158,7 +151,6 @@ config CONTEXT_TRACKING_FORCE 


config NO_HZ

	bool "Old Idle dynticks config"

	depends on !ARCH_USES_GETTIMEOFFSET && GENERIC_CLOCKEVENTS

	help

	  This is the old config entry that enables dynticks idle.

	  We keep it around for a little while to enforce backward
@@ -166,7 +158,6 @@ config NO_HZ 


config HIGH_RES_TIMERS

	bool "High Resolution Timer Support"

	depends on !ARCH_USES_GETTIMEOFFSET && GENERIC_CLOCKEVENTS

	select TICK_ONESHOT

	help

	  This option enables high resolution timer support. If your