[PATCH v2 04/10] x86/Kconfig: drop X86_32_NON_STANDARD

From: Mateusz Jończyk
Date: Sun Sep 11 2022 - 04:48:12 EST


This patch drops the "Support non-standard 32-bit SMP architectures"
configuration option. Currently, the only such an architecture is
STA2X11, so this option is useless. STA2X11 could now be selected
independently.

The dependency of X86_BIGSMP on X86_32_NON_STANDARD was dropped in
2009, in
commit 26f7ef14a76b ("x86: don't treat bigsmp as non-standard")
but the help text for X86_32_NON_STANDARD was not updated since.

CONFIG_X86_32_NON_STANDARD was used only in arch/x86/Kconfig, so it
could be dropped easily.

X86_32_NON_STANDARD depended on SMP, so
(!SMP && !X86_32_NON_STANDARD) == !SMP
and
(SMP || X86_32_NON_STANDARD) == SMP

Signed-off-by: Mateusz Jończyk <mat.jonczyk@xxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Cc: x86@xxxxxxxxxx
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
---
arch/x86/Kconfig | 19 ++++---------------
1 file changed, 4 insertions(+), 15 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 70bf4df73fa2..28f0c32fc65a 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -706,18 +706,6 @@ config X86_RDC321X
as R-8610-(G).
If you don't have one of these chips, you should say N here.

-config X86_32_NON_STANDARD
- bool "Support non-standard 32-bit SMP architectures"
- depends on X86_32 && SMP
- depends on X86_EXTENDED_PLATFORM
- help
- This option compiles in the bigsmp and STA2X11 default
- subarchitectures. It is intended for a generic binary
- kernel. If you select them all, kernel will probe it one by
- one and will fallback to default.
-
-# Alphabetically sorted list of Non standard 32 bit platforms
-
config X86_SUPPORTS_MEMORY_FAILURE
def_bool y
# MCE code calls memory_failure():
@@ -729,7 +717,8 @@ config X86_SUPPORTS_MEMORY_FAILURE

config STA2X11
bool "STA2X11 Companion Chip Support"
- depends on X86_32_NON_STANDARD && PCI
+ depends on X86_32 && SMP
+ depends on X86_EXTENDED_PLATFORM && PCI
select SWIOTLB
select MFD_STA2X11
select GPIOLIB
@@ -1077,7 +1066,7 @@ config UP_LATE_INIT
config X86_UP_APIC
bool "Local APIC support on uniprocessors" if !PCI_MSI
default PCI_MSI
- depends on X86_32 && !SMP && !X86_32_NON_STANDARD
+ depends on X86_32 && !SMP
help
A local APIC (Advanced Programmable Interrupt Controller) is an
integrated interrupt controller in the CPU. If you have a single-CPU
@@ -1102,7 +1091,7 @@ config X86_UP_IOAPIC

config X86_LOCAL_APIC
def_bool y
- depends on X86_64 || SMP || X86_32_NON_STANDARD || X86_UP_APIC || PCI_MSI
+ depends on X86_64 || SMP || X86_UP_APIC || PCI_MSI
select IRQ_DOMAIN_HIERARCHY
select PCI_MSI_IRQ_DOMAIN if PCI_MSI

--
2.25.1