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[OLK-5.10] 回合社区支持ARMv8.6 arm_arch_timer的补丁
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#I4QCBG
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wangxiongfeng
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Opened this issue
2022-01-11 15:25
回合社区支持ARMv8.6 arm_arch_timer的补丁 ARMv8.6支持arm_arch_timer为1GHz，但设置定时时间用的寄存器TVAL为32位，这样设置的时间间隔很短， 补丁集将其改为用 CVAL ,该寄存器为 64位 另外在硬件支持 ECV 时，使用自刷新寄存器 SYS_CNTVCTSS_EL0 获取时间，可以少执行一条 isb clocksource/arm_arch_timer: Add basic ARMv8.6 support https://patchwork.kernel.org/project/linux-arm-kernel/cover/20211017124225.3018098-1-maz@kernel.org/ | db26f8f2da92 clocksource/drivers/arch_arm_timer: Move workaround synchronisation around c1153d52c414 clocksource/drivers/arm_arch_timer: Fix masking for high freq counters ec8f7f3342c8 clocksource/drivers/arm_arch_timer: Drop unnecessary ISB on CVAL programming | 41f8d02a6a55 clocksource/drivers/arm_arch_timer: Remove any trace of the TVAL programming interface | 012f18850452 clocksource/drivers/arm_arch_timer: Work around broken CVAL implementations | 30aa08da35e0 clocksource/drivers/arm_arch_timer: Advertise 56bit timer to the core code | 8b82c4f883a7 clocksource/drivers/arm_arch_timer: Move MMIO timer programming over to CVAL | 72f47a3f0ea4 clocksource/drivers/arm_arch_timer: Fix MMIO base address vs callback ordering issue | ac9ef4f24cb2 clocksource/drivers/arm_arch_timer: Move drop _tval from erratum function names | a38b71b0833e clocksource/drivers/arm_arch_timer: Move system register timer programming over to CVAL | 1e8d929231cf clocksource/drivers/arm_arch_timer: Extend write side of timer register accessors to u64 | d72689988d67 clocksource/drivers/arm_arch_timer: Drop CNT*_TVAL read accessors | 4775bc63f880 clocksource/arm_arch_timer: Add build-time guards for unhandled register accesses | fee29f008aa3 arm64: Add HWCAP for self-synchronising virtual counter ae976f063b60 arm64: Add handling of CNTVCTSS traps 9ee840a96042 arm64: Add CNT{P,V}CTSS_EL0 alternatives to cnt{p,v}ct_el0
回合社区支持ARMv8.6 arm_arch_timer的补丁 ARMv8.6支持arm_arch_timer为1GHz，但设置定时时间用的寄存器TVAL为32位，这样设置的时间间隔很短， 补丁集将其改为用 CVAL ,该寄存器为 64位 另外在硬件支持 ECV 时，使用自刷新寄存器 SYS_CNTVCTSS_EL0 获取时间，可以少执行一条 isb clocksource/arm_arch_timer: Add basic ARMv8.6 support https://patchwork.kernel.org/project/linux-arm-kernel/cover/20211017124225.3018098-1-maz@kernel.org/ | db26f8f2da92 clocksource/drivers/arch_arm_timer: Move workaround synchronisation around c1153d52c414 clocksource/drivers/arm_arch_timer: Fix masking for high freq counters ec8f7f3342c8 clocksource/drivers/arm_arch_timer: Drop unnecessary ISB on CVAL programming | 41f8d02a6a55 clocksource/drivers/arm_arch_timer: Remove any trace of the TVAL programming interface | 012f18850452 clocksource/drivers/arm_arch_timer: Work around broken CVAL implementations | 30aa08da35e0 clocksource/drivers/arm_arch_timer: Advertise 56bit timer to the core code | 8b82c4f883a7 clocksource/drivers/arm_arch_timer: Move MMIO timer programming over to CVAL | 72f47a3f0ea4 clocksource/drivers/arm_arch_timer: Fix MMIO base address vs callback ordering issue | ac9ef4f24cb2 clocksource/drivers/arm_arch_timer: Move drop _tval from erratum function names | a38b71b0833e clocksource/drivers/arm_arch_timer: Move system register timer programming over to CVAL | 1e8d929231cf clocksource/drivers/arm_arch_timer: Extend write side of timer register accessors to u64 | d72689988d67 clocksource/drivers/arm_arch_timer: Drop CNT*_TVAL read accessors | 4775bc63f880 clocksource/arm_arch_timer: Add build-time guards for unhandled register accesses | fee29f008aa3 arm64: Add HWCAP for self-synchronising virtual counter ae976f063b60 arm64: Add handling of CNTVCTSS traps 9ee840a96042 arm64: Add CNT{P,V}CTSS_EL0 alternatives to cnt{p,v}ct_el0
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