LoongArch: Adjust build infrastructure for 32BIT/64BIT

	select ARCH_HAS_FAST_MULTIPLIER

	select ARCH_HAS_FORTIFY_SOURCE

	select ARCH_HAS_KCOV

	select ARCH_HAS_KERNEL_FPU_SUPPORT if CPU_HAS_FPU

	select ARCH_HAS_KERNEL_FPU_SUPPORT if 64BIT && CPU_HAS_FPU

	select ARCH_HAS_NMI_SAFE_THIS_CPU_OPS

	select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE

	select ARCH_HAS_PREEMPT_LAZY

	select ARCH_HAS_PTE_SPECIAL

	select ARCH_HAS_PTE_SPECIAL if 64BIT

	select ARCH_HAS_SET_MEMORY

	select ARCH_HAS_SET_DIRECT_MAP

	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST

	select ARCH_KEEP_MEMBLOCK

	select ARCH_MIGHT_HAVE_PC_PARPORT

	select ARCH_MIGHT_HAVE_PC_SERIO

	select ARCH_SPARSEMEM_ENABLE

	select ARCH_STACKWALK

	select ARCH_SUPPORTS_ACPI

	select ARCH_SUPPORTS_ATOMIC_RMW

	select ARCH_SUPPORTS_HUGETLBFS

	select ARCH_SUPPORTS_HUGETLBFS if 64BIT

	select ARCH_SUPPORTS_INT128 if CC_HAS_INT128

	select ARCH_SUPPORTS_LTO_CLANG

	select ARCH_SUPPORTS_LTO_CLANG_THIN

	select ARCH_SUPPORTS_MSEAL_SYSTEM_MAPPINGS

	select ARCH_SUPPORTS_NUMA_BALANCING

	select ARCH_SUPPORTS_NUMA_BALANCING if NUMA

	select ARCH_SUPPORTS_PER_VMA_LOCK

	select ARCH_SUPPORTS_RT

	select ARCH_SUPPORTS_SCHED_SMT if SMP

	select ARCH_USE_MEMTEST

	select ARCH_USE_QUEUED_RWLOCKS

	select ARCH_USE_QUEUED_SPINLOCKS

	select ARCH_WANT_DEFAULT_BPF_JIT

	select ARCH_WANT_DEFAULT_BPF_JIT if HAVE_EBPF_JIT

	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT

	select ARCH_WANT_LD_ORPHAN_WARN

	select ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP

	select ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP if 64BIT

	select ARCH_WANTS_NO_INSTR

	select ARCH_WANTS_THP_SWAP if HAVE_ARCH_TRANSPARENT_HUGEPAGE

	select BUILDTIME_TABLE_SORT

	select CPU_PM

	select EDAC_SUPPORT

	select EFI

	select GENERIC_ATOMIC64 if 32BIT

	select GENERIC_CLOCKEVENTS

	select GENERIC_CMOS_UPDATE

	select GENERIC_CPU_AUTOPROBE

	select GENERIC_CPU_DEVICES

	select GENERIC_CPU_VULNERABILITIES

	select GENERIC_ENTRY

	select GENERIC_GETTIMEOFDAY

	select GENERIC_GETTIMEOFDAY if 64BIT

	select GENERIC_IOREMAP if !ARCH_IOREMAP

	select GENERIC_IRQ_MATRIX_ALLOCATOR

	select GENERIC_IRQ_MULTI_HANDLER

	select GENERIC_PCI_IOMAP

	select GENERIC_SCHED_CLOCK

	select GENERIC_SMP_IDLE_THREAD

	select GENERIC_TIME_VSYSCALL

	select GENERIC_TIME_VSYSCALL if GENERIC_GETTIMEOFDAY

	select GPIOLIB

	select HAS_IOPORT

	select HAVE_ALIGNED_STRUCT_PAGE

	select HAVE_ALIGNED_STRUCT_PAGE if 64BIT

	select HAVE_ARCH_AUDITSYSCALL

	select HAVE_ARCH_BITREVERSE

	select HAVE_ARCH_BITREVERSE if 64BIT

	select HAVE_ARCH_JUMP_LABEL

	select HAVE_ARCH_JUMP_LABEL_RELATIVE

	select HAVE_ARCH_KASAN

	select HAVE_ARCH_KFENCE

	select HAVE_ARCH_KASAN if 64BIT

	select HAVE_ARCH_KFENCE if 64BIT

	select HAVE_ARCH_KGDB if PERF_EVENTS

	select HAVE_ARCH_KSTACK_ERASE

	select HAVE_ARCH_MMAP_RND_BITS if MMU

	select HAVE_ARCH_SECCOMP

	select HAVE_ARCH_SECCOMP_FILTER

	select HAVE_ARCH_TRACEHOOK

	select HAVE_ARCH_TRANSPARENT_HUGEPAGE

	select HAVE_ARCH_USERFAULTFD_MINOR if USERFAULTFD

	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if 64BIT

	select HAVE_ARCH_USERFAULTFD_MINOR if 64BIT && USERFAULTFD

	select HAVE_ASM_MODVERSIONS

	select HAVE_CMPXCHG_DOUBLE

	select HAVE_CMPXCHG_LOCAL

	select HAVE_FTRACE_REGS_HAVING_PT_REGS

	select HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS

	select HAVE_DYNAMIC_FTRACE_WITH_REGS

	select HAVE_EBPF_JIT

	select HAVE_EBPF_JIT if 64BIT

	select HAVE_EFFICIENT_UNALIGNED_ACCESS if !ARCH_STRICT_ALIGN

	select HAVE_EXIT_THREAD

	select HAVE_GENERIC_TIF_BITS

	select HAVE_LIVEPATCH

	select HAVE_MOD_ARCH_SPECIFIC

	select HAVE_NMI

	select HAVE_OBJTOOL if AS_HAS_EXPLICIT_RELOCS && AS_HAS_THIN_ADD_SUB

	select HAVE_OBJTOOL if AS_HAS_EXPLICIT_RELOCS && AS_HAS_THIN_ADD_SUB && 64BIT

	select HAVE_PCI

	select HAVE_PERF_EVENTS

	select HAVE_PERF_EVENTS if 64BIT

	select HAVE_PERF_REGS

	select HAVE_PERF_USER_STACK_DUMP

	select HAVE_POSIX_CPU_TIMERS_TASK_WORK

	select SYSCTL_ARCH_UNALIGN_ALLOW

	select SYSCTL_ARCH_UNALIGN_NO_WARN

	select SYSCTL_EXCEPTION_TRACE

	select SWIOTLB

	select SWIOTLB if 64BIT

	select TRACE_IRQFLAGS_SUPPORT

	select USE_PERCPU_NUMA_NODE_ID

	select USER_STACKTRACE_SUPPORT

	select VDSO_GETRANDOM

	select ZONE_DMA32

	select ZONE_DMA32 if 64BIT

menu "Kernel type and options"

choice

	prompt "Kernel type"

config 32BIT

	bool

	bool "32-bit kernel"

	help

	  Select this option if you want to build a 32-bit kernel.

config 64BIT

	def_bool y

	bool "64-bit kernel"

	help

	  Select this option if you want to build a 64-bit kernel.

endchoice

if 32BIT

choice

	prompt "32-bit kernel sub-type"

config 32BIT_REDUCED

	bool "32-bit kernel for LA32R"

	help

	  Select this option if you want to build a 32-bit kernel for

	  LoongArch32 Reduced (LA32R).

config 32BIT_STANDARD

	bool "32-bit kernel for LA32S"

	help

	  Select this option if you want to build a 32-bit kernel for

	  LoongArch32 Standard (LA32S).

endchoice

endif

config GENERIC_BUG

	def_bool y

	depends on RUST

	def_bool $(rustc-option,-Cllvm-args=--loongarch-annotate-tablejump)

menu "Kernel type and options"

source "kernel/Kconfig.hz"

choice

	  of page size and page table levels. The size of virtual memory

	  address space are determined by the page table layout.

config 4KB_2LEVEL

	bool "4KB with 2 levels"

	select HAVE_PAGE_SIZE_4KB

	select PGTABLE_2LEVEL

	help

	  This option selects 4KB page size with 2 level page tables, which

	  support a maximum of 32 bits of application virtual memory.

config 4KB_3LEVEL

	bool "4KB with 3 levels"

	depends on 64BIT

	select HAVE_PAGE_SIZE_4KB

	select PGTABLE_3LEVEL

	help

config 4KB_4LEVEL

	bool "4KB with 4 levels"

	depends on 64BIT

	select HAVE_PAGE_SIZE_4KB

	select PGTABLE_4LEVEL

	help

config 16KB_3LEVEL

	bool "16KB with 3 levels"

	depends on 64BIT

	select HAVE_PAGE_SIZE_16KB

	select PGTABLE_3LEVEL

	help

config 64KB_3LEVEL

	bool "64KB with 3 levels"

	depends on 64BIT

	select HAVE_PAGE_SIZE_64KB

	select PGTABLE_3LEVEL

	help

config SMP

	bool "Multi-Processing support"

	depends on 64BIT

	help

	  This enables support for systems with more than one CPU. If you have

	  a system with only one CPU, say N. If you have a system with more

config NUMA

	bool "NUMA Support"

	select SMP

	depends on 64BIT

	help

	  Say Y to compile the kernel with NUMA (Non-Uniform Memory Access)

	  support.  This option improves performance on systems with more

config CPU_HAS_LSX

	bool "Support for the Loongson SIMD Extension"

	depends on AS_HAS_LSX_EXTENSION

	depends on AS_HAS_LSX_EXTENSION && 64BIT

	help

	  Loongson SIMD Extension (LSX) introduces 128 bit wide vector registers

	  and a set of SIMD instructions to operate on them. When this option

config CPU_HAS_LASX

	bool "Support for the Loongson Advanced SIMD Extension"

	depends on CPU_HAS_LSX

	depends on AS_HAS_LASX_EXTENSION

	depends on AS_HAS_LASX_EXTENSION && 64BIT

	help

	  Loongson Advanced SIMD Extension (LASX) introduces 256 bit wide vector

	  registers and a set of SIMD instructions to operate on them. When this

config CPU_HAS_LBT

	bool "Support for the Loongson Binary Translation Extension"

	depends on AS_HAS_LBT_EXTENSION

	depends on AS_HAS_LBT_EXTENSION && 64BIT

	help

	  Loongson Binary Translation (LBT) introduces 4 scratch registers (SCR0

	  to SCR3), x86/ARM eflags (eflags) and x87 fpu stack pointer (ftop).

	select HAVE_IMA_KEXEC if IMA

config ARCH_SUPPORTS_CRASH_DUMP

	def_bool y

	def_bool 64BIT

config ARCH_DEFAULT_CRASH_DUMP

	def_bool y

	def_bool 64BIT

config ARCH_SELECTS_CRASH_DUMP

	def_bool y

	def_bool 64BIT

	depends on CRASH_DUMP

	select RELOCATABLE

config RELOCATABLE

	bool "Relocatable kernel"

	depends on 64BIT

	select ARCH_HAS_RELR

	help

	  This builds the kernel as a Position Independent Executable (PIE),

config PARAVIRT

	bool "Enable paravirtualization code"

	depends on AS_HAS_LVZ_EXTENSION

	depends on AS_HAS_LVZ_EXTENSION && 64BIT

	select HAVE_PV_STEAL_CLOCK_GEN

	help

	  This changes the kernel so it can modify itself when it is run

	depends on !NUMA

config ARCH_SPARSEMEM_ENABLE

	def_bool y

	def_bool 64BIT

	select SPARSEMEM_VMEMMAP_ENABLE

	help

	  Say Y to support efficient handling of sparse physical memory,

	default y

config ARCH_MMAP_RND_BITS_MIN

	default 12

	default 10 if 32BIT

	default 12 if 64BIT

config ARCH_MMAP_RND_BITS_MAX

	default 18

	default 15 if 32BIT

	default 20 if 64BIT

config ARCH_SUPPORTS_UPROBES

	def_bool y

#

# Select the object file format to substitute into the linker script.

#

32bit-tool-archpref	= loongarch32

64bit-tool-archpref	= loongarch64

32bit-bfd		= elf32-loongarch

64bit-bfd		= elf64-loongarch

CC_FLAGS_FTRACE := -fpatchable-function-entry=2

endif

ifdef CONFIG_64BIT

ifdef CONFIG_32BIT

tool-archpref		= $(32bit-tool-archpref)

UTS_MACHINE		:= loongarch32

else

tool-archpref		= $(64bit-tool-archpref)

UTS_MACHINE		:= loongarch64

endif

  endif

endif

ifdef CONFIG_32BIT

ifdef CONFIG_32BIT_STANDARD

ld-emul			= $(32bit-emul)

cflags-y		+= -march=la32v1.0 -mabi=ilp32s -mcmodel=normal

else  # CONFIG_32BIT_REDUCED

ld-emul			= $(32bit-emul)

cflags-y		+= -march=la32rv1.0 -mabi=ilp32s -mcmodel=normal

endif

endif

ifdef CONFIG_64BIT

ld-emul			= $(64bit-emul)

cflags-y		+= -mabi=lp64s -mcmodel=normal

cflags-y		+= -march=loongarch64 -mabi=lp64s -mcmodel=normal

endif

cflags-y			+= -pipe $(CC_FLAGS_NO_FPU)

cflags-y += -fno-builtin-memcpy -fno-builtin-memmove -fno-builtin-memset

endif

ifdef CONFIG_32BIT

load-y		= 0xa0200000

else

load-y		= 0x9000000000200000

endif

bootvars-y	= VMLINUX_LOAD_ADDRESS=$(load-y)

drivers-$(CONFIG_PCI)		+= arch/loongarch/pci/

	$(call if_changed,objcopy)

EFI_ZBOOT_PAYLOAD      := vmlinux.efi

ifdef CONFIG_32BIT

EFI_ZBOOT_BFD_TARGET   := elf32-loongarch

EFI_ZBOOT_MACH_TYPE    := LOONGARCH32

else

EFI_ZBOOT_BFD_TARGET   := elf64-loongarch

EFI_ZBOOT_MACH_TYPE    := LOONGARCH64

endif

include $(srctree)/drivers/firmware/efi/libstub/Makefile.zboot

#define PAGE_SIZE _PAGE_SIZE

#define RO_EXCEPTION_TABLE_ALIGN	4

#ifdef CONFIG_32BIT

#define PHYSADDR_MASK			0x1fffffff	/* 29-bit */

#else

#define PHYSADDR_MASK			0xffffffffffff	/* 48-bit */

#endif

/*

 * Put .bss..swapper_pg_dir as the first thing in .bss. This will

config KVM

	tristate "Kernel-based Virtual Machine (KVM) support"

	depends on AS_HAS_LVZ_EXTENSION

	depends on AS_HAS_LVZ_EXTENSION && 64BIT

	select HAVE_KVM_DIRTY_RING_ACQ_REL

	select HAVE_KVM_IRQ_ROUTING

	select HAVE_KVM_IRQCHIP