mips/kexec: refactor for kernel/Kconfig.kexec

The kexec and crash kernel options are provided in the common
kernel/Kconfig.kexec. Utilize the common options and provide
the ARCH_SUPPORTS_ and ARCH_SELECTS_ entries to recreate the
equivalent set of KEXEC and CRASH options.

Link: https://lkml.kernel.org/r/20230712161545.87870-9-eric.devolder@oracle.com
Signed-off-by: Eric DeVolder <eric.devolder@oracle.com>
Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index fc6fba925aea05eacfcc0ae363e0029c5ed78928..bc8421859006fa4a1a57cf5c0bf8ac9ab28c8efe 100644 (file)
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -2878,33 +2878,11 @@ config HZ
 config SCHED_HRTICK
        def_bool HIGH_RES_TIMERS
 
-config KEXEC
-       bool "Kexec system call"
-       select KEXEC_CORE
-       help
-         kexec is a system call that implements the ability to shutdown your
-         current kernel, and to start another kernel.  It is like a reboot
-         but it is independent of the system firmware.   And like a reboot
-         you can start any kernel with it, not just Linux.
-
-         The name comes from the similarity to the exec system call.
-
-         It is an ongoing process to be certain the hardware in a machine
-         is properly shutdown, so do not be surprised if this code does not
-         initially work for you.  As of this writing the exact hardware
-         interface is strongly in flux, so no good recommendation can be
-         made.
-
-config CRASH_DUMP
-       bool "Kernel crash dumps"
-       help
-         Generate crash dump after being started by kexec.
-         This should be normally only set in special crash dump kernels
-         which are loaded in the main kernel with kexec-tools into
-         a specially reserved region and then later executed after
-         a crash by kdump/kexec. The crash dump kernel must be compiled
-         to a memory address not used by the main kernel or firmware using
-         PHYSICAL_START.
+config ARCH_SUPPORTS_KEXEC
+       def_bool y
+
+config ARCH_SUPPORTS_CRASH_DUMP
+       def_bool y
 
 config PHYSICAL_START
        hex "Physical address where the kernel is loaded"