TO RESET: preempt_enable: check if no_preempt isn't negative

Change-Id: I1cef2077c50f3b3020870505dd065d10617f440e

arch/x86_64/kernel/include/arch-memory.h

@@ -451,4 +451,12 @@ extern unsigned long ap_trampoline;
 
 /* Local is cachable */
 #define IHK_IKC_QUEUE_PT_ATTR (PTATTR_NO_EXECUTE | PTATTR_WRITABLE)
+
+#ifdef ENABLE_FUGAKU_HACKS
+#ifndef __ASSEMBLY__
+# define ALIGN_UP(x, align)     ALIGN_DOWN((x) + (align) - 1, align)
+# define ALIGN_DOWN(x, align)   ((x) & ~((align) - 1))
+#endif /* !__ASSEMBLY__ */
+#endif
+
 #endif

arch/x86_64/kernel/include/cpulocal.h

@@ -53,5 +53,9 @@ struct x86_cpu_local_variables *get_x86_this_cpu_local(void);
 void *get_x86_cpu_local_kstack(int id);
 void *get_x86_this_cpu_kstack(void);
 
+#ifdef ENABLE_FUGAKU_HACKS
+#define LOCALS_SPAN (4 * PAGE_SIZE)
+#define KERNEL_STACK_SIZE LOCALS_SPAN
+#endif
 
 #endif