From: Peter Zijlstra <peterz@infradead.org>
To: Marc Gonzalez <marc.w.gonzalez@free.fr>
Cc: Thomas Gleixner <tglx@linutronix.de>,
x86@kernel.org, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [patch 00/58] x86/apic: Decrapification and static calls
Date: Thu, 20 Jul 2023 15:13:16 +0200 [thread overview]
Message-ID: <20230720131316.GD3569127@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <502aa1d5-97a0-7787-1d9c-486f351fe9c5@free.fr>
On Thu, Jul 20, 2023 at 02:43:55PM +0200, Marc Gonzalez wrote:
> On 18/07/2023 01:14, Thomas Gleixner wrote:
> > Ideally we remove 32bit support altogether. I know the answer... :(
>
> Hello Thomas,
>
> For what it's worth, there are a few millions of these in the field:
>
> # cat /proc/cpuinfo
> processor : 0
> vendor_id : GenuineIntel
> cpu family : 6
> model : 28
> model name : Intel(R) Atom(TM) CPU CE4150 @ 1.20GHz
> stepping : 10
> microcode : 0x106
> cpu MHz : 1199.885
> cache size : 512 KB
> physical id : 0
> siblings : 2
> core id : 0
> cpu cores : 1
> apicid : 0
> initial apicid : 0
> fdiv_bug : no
> f00f_bug : no
> coma_bug : no
> fpu : yes
> fpu_exception : yes
> cpuid level : 10
> wp : yes
> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc arch_perfmon pebs bts cpuid aperfmperf pni dtes64 monitor ds_cpl vmx tm2 ssse3 cx16 xtpr pdcm movbe lahf_lm tpr_shadow vnmi flexpriority vpid dtherm
> vmx flags : vnmi flexpriority tsc_offset vtpr vapic
> bugs :
> bogomips : 2400.76
> clflush size : 64
> cache_alignment : 64
> address sizes : 32 bits physical, 48 bits virtual
> power management:
But that's a 64bit chip, no? lm, cx16
next prev parent reply other threads:[~2023-07-20 13:13 UTC|newest]
Thread overview: 90+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-17 23:14 Thomas Gleixner
2023-07-17 23:14 ` [patch 01/58] x86/cpu: Make identify_boot_cpu() static Thomas Gleixner
2023-07-17 23:14 ` [patch 02/58] x86/cpu: Remove unused physid_*() nonsense Thomas Gleixner
2023-07-17 23:14 ` [patch 03/58] x86/apic: Rename disable_apic Thomas Gleixner
2023-07-17 23:14 ` [patch 04/58] x86/apic/ioapic: Rename skip_ioapic_setup Thomas Gleixner
2023-07-17 23:14 ` [patch 05/58] x86/apic: Remove pointless x86_bios_cpu_apicid Thomas Gleixner
2023-07-17 23:14 ` [patch 06/58] x86/apic: Get rid of hard_smp_processor_id() Thomas Gleixner
2023-07-17 23:14 ` [patch 07/58] x86/apic: Remove unused max_physical_apicid Thomas Gleixner
2023-07-17 23:14 ` [patch 08/58] x86/apic: Nuke unused apic::inquire_remote_apic() Thomas Gleixner
2023-07-17 23:14 ` [patch 09/58] x86/apic: Get rid of boot_cpu_physical_apicid madness Thomas Gleixner
2023-07-17 23:14 ` [patch 10/58] x86/apic: Register boot CPU APIC early Thomas Gleixner
2023-07-17 23:14 ` [patch 11/58] x86/apic: Remove the pointless APIC version check Thomas Gleixner
2023-07-17 23:14 ` [patch 12/58] x86/of: Fix the APIC address registration Thomas Gleixner
2023-07-17 23:14 ` [patch 13/58] x86/apic: Make some APIC init functions bool Thomas Gleixner
2023-07-17 23:14 ` [patch 14/58] x86/apic: Split register_apic_address() Thomas Gleixner
2023-07-17 23:14 ` [patch 15/58] x86/apic: Sanitize APIC address setup Thomas Gleixner
2023-07-17 23:14 ` [patch 16/58] x86/apic: Sanitize num_processors handling Thomas Gleixner
2023-07-17 23:15 ` [patch 17/58] x86/apic: Nuke another processor check Thomas Gleixner
2023-07-17 23:15 ` [patch 18/58] x86/apic: Remove check_phys_apicid_present() Thomas Gleixner
2023-07-17 23:15 ` [patch 19/58] x86/apic: Get rid of apic_phys Thomas Gleixner
2023-07-18 13:11 ` Thomas Gleixner
2023-07-20 4:18 ` Michael Kelley (LINUX)
2023-07-20 8:03 ` Thomas Gleixner
2023-07-21 4:17 ` Michael Kelley (LINUX)
2023-07-17 23:15 ` [patch 20/58] x86/apic/32: Sanitize logical APIC ID handling Thomas Gleixner
2023-07-17 23:15 ` [patch 21/58] x86/apic/32: Remove x86_cpu_to_logical_apicid Thomas Gleixner
2023-07-17 23:15 ` [patch 22/58] x86/apic/ipi: Code cleanup Thomas Gleixner
2023-07-17 23:15 ` [patch 23/58] x86/apic: Mop up early_per_cpu() abuse Thomas Gleixner
2023-07-17 23:15 ` [patch 24/58] x86/apic/32: Remove pointless default_acpi_madt_oem_check() Thomas Gleixner
2023-07-18 4:28 ` Juergen Gross
2023-07-17 23:15 ` [patch 25/58] x86/apic/32: Decrapify the def_bigsmp mechanism Thomas Gleixner
2023-07-17 23:15 ` [patch 26/58] x86/apic/32: Remove bigsmp_cpu_present_to_apicid() Thomas Gleixner
2023-07-17 23:15 ` [patch 27/58] x86/apic: Nuke empty init_apic_ldr() callbacks Thomas Gleixner
2023-07-17 23:15 ` [patch 28/58] x86/apic: Nuke apic::apicid_to_cpu_present() Thomas Gleixner
2023-07-17 23:15 ` [patch 29/58] x86/ioapic/32: Decrapify phys_id_present_map operation Thomas Gleixner
2023-07-17 23:15 ` [patch 30/58] x86/apic: Mop up *setup_apic_routing() Thomas Gleixner
2023-07-17 23:15 ` [patch 31/58] x86/apic: Mop up apic::apic_id_registered() Thomas Gleixner
2023-07-17 23:15 ` [patch 32/58] x86/apic/ipi: Tidy up the code and fixup comments Thomas Gleixner
2023-07-17 23:15 ` [patch 33/58] x86/apic: Consolidate wait_icr_idle() implementations Thomas Gleixner
2023-07-17 23:15 ` [patch 34/58] x86/apic: Allow apic::wait_icr_idle() to be NULL Thomas Gleixner
2023-07-17 23:15 ` [patch 35/58] x86/apic: Allow apic::safe_wait_icr_idle() " Thomas Gleixner
2023-07-17 23:15 ` [patch 36/58] x86/apic: Move safe wait_icr_idle() next to apic_mem_wait_icr_idle() Thomas Gleixner
2023-07-17 23:15 ` [patch 37/58] x86/apic/uv: Get rid of wrapper callbacks Thomas Gleixner
2023-07-17 23:15 ` [patch 38/58] x86/apic/x2apic: Share all common IPI functions Thomas Gleixner
2023-07-17 23:15 ` [patch 39/58] x86/apic/64: Uncopypaste probing Thomas Gleixner
2023-07-17 23:15 ` [patch 40/58] x86/apic: Wrap APIC ID validation into an inline Thomas Gleixner
2023-07-17 23:15 ` [patch 41/58] x86/apic: Add max_apic_id member Thomas Gleixner
2023-07-18 0:19 ` Linus Torvalds
2023-07-18 7:47 ` Thomas Gleixner
2023-07-18 15:54 ` Thomas Gleixner
2023-07-18 16:06 ` Linus Torvalds
2023-07-18 18:59 ` Thomas Gleixner
2023-07-17 23:15 ` [patch 42/58] x86/apic: Simplify X2APIC ID validation Thomas Gleixner
2023-07-17 23:15 ` [patch 43/58] x86/apic: Prepare x2APIC for using apic::max_apic_id Thomas Gleixner
2023-07-17 23:15 ` [patch 44/58] x86/apic: Sanitize APID ID range validation Thomas Gleixner
2023-07-17 23:15 ` [patch 45/58] x86/apic: Remove pointless NULL initializations Thomas Gleixner
2023-07-17 23:15 ` [patch 46/58] x86/apic/noop: Tidy up the code Thomas Gleixner
2023-07-17 23:15 ` [patch 47/58] x86/apic: Remove pointless arguments from [native_]eoi_write() Thomas Gleixner
2023-07-23 22:45 ` Wei Liu
2023-07-17 23:15 ` [patch 48/58] x86/apic: Nuke ack_APIC_irq() Thomas Gleixner
2023-07-23 22:45 ` Wei Liu
2023-07-17 23:15 ` [patch 49/58] x86/apic: Wrap apic->native_eoi() into a helper Thomas Gleixner
2023-07-17 23:15 ` [patch 50/58] x86/apic: Provide common init infrastructure Thomas Gleixner
2023-07-18 21:29 ` Peter Keresztes Schmidt
2023-07-18 21:51 ` Thomas Gleixner
2023-07-17 23:15 ` [patch 51/58] x86/apic: Provide apic_update_callback() Thomas Gleixner
2023-07-21 4:27 ` Michael Kelley (LINUX)
2023-07-17 23:15 ` [patch 52/58] x86/apic: Replace acpi_wake_cpu_handler_update() and apic_set_eoi_cb() Thomas Gleixner
2023-07-23 22:55 ` Wei Liu
2023-07-17 23:15 ` [patch 53/58] x86/apic: Convert other overrides to apic_update_callback() Thomas Gleixner
2023-07-21 17:49 ` Michael Kelley (LINUX)
2023-07-23 12:32 ` Thomas Gleixner
2023-07-17 23:15 ` [patch 54/58] x86/xen/apic: Mark apic __ro_after_init Thomas Gleixner
2023-07-18 15:31 ` Juergen Gross
2023-07-18 15:56 ` Thomas Gleixner
2023-07-18 16:08 ` Juergen Gross
2023-07-17 23:16 ` [patch 55/58] x86/apic: Mark all hotpath APIC callback wrappers __always_inline Thomas Gleixner
2023-07-17 23:16 ` [patch 56/58] x86/apic: Wrap IPI calls into helper functions Thomas Gleixner
2023-07-17 23:16 ` [patch 57/58] x86/apic: Provide static call infrastructure for APIC callbacks Thomas Gleixner
2023-07-18 9:19 ` Peter Zijlstra
2023-07-17 23:16 ` [patch 58/58] x86/apic: Turn on static calls Thomas Gleixner
2023-07-18 13:35 ` Thomas Gleixner
2023-07-18 0:27 ` [patch 00/58] x86/apic: Decrapification and " Linus Torvalds
2023-07-18 9:23 ` Peter Zijlstra
2023-07-18 14:29 ` Linus Walleij
2023-07-24 16:59 ` William Breathitt Gray
2023-07-20 12:43 ` Marc Gonzalez
2023-07-20 13:13 ` Peter Zijlstra [this message]
2023-07-20 13:47 ` Thomas Gleixner
2023-07-20 15:16 ` Marc Gonzalez
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