sw64: adjust make rules to avoid compile error

Sunway inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I56OLG

--------------------------------

Fix compile errors when CONFIG_NUMA or CONFIG_SPARSEMEM is not set.
Some make rules are changed to avoid potential compile errors.
Signed-off-by: NMao Minkai <maominkai@wxiat.com>
Signed-off-by: NGu Zitao <guzitao@wxiat.com>

arch/sw_64/Kconfig

@@ -97,6 +97,7 @@ config SW64
 	select HAVE_REGS_AND_STACK_ACCESS_API
 	select ARCH_HAS_PTE_SPECIAL
 	select HARDIRQS_SW_RESEND
+	select MEMORY_HOTPLUG_SPARSE if MEMORY_HOTPLUG
 
 config LOCKDEP_SUPPORT
 	def_bool y

arch/sw_64/kernel/Makefile

@@ -31,9 +31,13 @@ obj-$(CONFIG_HIBERNATION) += hibernate_asm.o hibernate.o
 obj-$(CONFIG_AUDIT)     += audit.o
 obj-$(CONFIG_PCI) += pci_common.o
 obj-$(CONFIG_RELOCATABLE)   += relocate.o
-obj-$(CONFIG_DEBUG_FS)	+= segvdbg.o bindvcpu.o
+obj-$(CONFIG_DEBUG_FS)	+= segvdbg.o
 obj-$(CONFIG_JUMP_LABEL) += jump_label.o
 
+ifeq ($(CONFIG_DEBUG_FS)$(CONFIG_NUMA),yy)
+obj-y += bindvcpu.o
+endif
+
 ifndef CONFIG_PCI
 obj-y += pci-noop.o
 endif

arch/sw_64/kvm/Kconfig

@@ -44,7 +44,7 @@ config KVM_SW64_HOST
 
 config KVM_MEMHOTPLUG
 	bool "Memory hotplug support for guest"
-	depends on KVM
+	depends on KVM && MEMORY_HOTPLUG
 	help
 	  Provides memory hotplug support for SW64 guest.
 

arch/sw_64/kvm/kvm-sw64.c

@@ -21,7 +21,9 @@
 
 bool set_msi_flag;
 unsigned long sw64_kvm_last_vpn[NR_CPUS];
+#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_NUMA)
 __read_mostly bool bind_vcpu_enabled;
+#endif
 #define cpu_last_vpn(cpuid) sw64_kvm_last_vpn[cpuid]
 
 #ifdef CONFIG_SUBARCH_C3B
@@ -539,6 +541,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu)
 		vcpu->arch.vcb.vpcr
 			= get_vpcr(vcpu->kvm->arch.host_phys_addr, vcpu->kvm->arch.size, 0);
 
+#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_NUMA)
 		if (unlikely(bind_vcpu_enabled)) {
 			int nid;
 			unsigned long end;
@@ -548,11 +551,12 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu)
 			if (pfn_to_nid(PHYS_PFN(end)) == nid)
 				set_cpus_allowed_ptr(vcpu->arch.tsk, node_to_cpumask_map[nid]);
 		}
-#else
+#endif
+#else /* !CONFIG_KVM_MEMHOTPLUG */
 		unsigned long seg_base = virt_to_phys(vcpu->kvm->arch.seg_pgd);
 
 		vcpu->arch.vcb.vpcr = get_vpcr_memhp(seg_base, 0);
-#endif
+#endif /* CONFIG_KVM_MEMHOTPLUG */
 		vcpu->arch.vcb.upcr = 0x7;
 	}
 

arch/sw_64/mm/init.c

@@ -34,6 +34,7 @@ static pud_t vmalloc_pud[1024]	__attribute__((__aligned__(PAGE_SIZE)));
 static phys_addr_t mem_start;
 static phys_addr_t mem_size_limit;
 
+#ifdef CONFIG_MEMORY_HOTPLUG_SPARSE
 unsigned long memory_block_size_bytes(void)
 {
 	if (is_in_guest())
@@ -41,6 +42,7 @@ unsigned long memory_block_size_bytes(void)
 	else
 		return MIN_MEMORY_BLOCK_SIZE;
 }
+#endif /* CONFIG_MEMORY_HOTPLUG_SPARSE */
 
 static int __init setup_mem_size(char *p)
 {

arch/sw_64/mm/physaddr.c

 // SPDX-License-Identifier: GPL-2.0
 #include <linux/mmdebug.h>
 #include <linux/module.h>
+#include <linux/mm.h>
 #include <asm/page.h>
 
 unsigned long __phys_addr(unsigned long x)