/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_IA64_XTP_H #define _ASM_IA64_XTP_H #include <asm/io.h> #ifdef CONFIG_SMP #define XTP_OFFSET 0x1e0008 #define SMP_IRQ_REDIRECTION (1 << 0) #define SMP_IPI_REDIRECTION (1 << 1) extern unsigned char smp_int_redirect; /* * XTP control functions: * min_xtp : route all interrupts to this CPU * normal_xtp: nominal XTP value * max_xtp : never deliver interrupts to this CPU. */ static inline void min_xtp (void) { if (smp_int_redirect & SMP_IRQ_REDIRECTION) writeb(0x00, ipi_base_addr + XTP_OFFSET); /* XTP to min */ } static inline void normal_xtp (void) { if (smp_int_redirect & SMP_IRQ_REDIRECTION) writeb(0x08, ipi_base_addr + XTP_OFFSET); /* XTP normal */ } static inline void max_xtp (void) { if (smp_int_redirect & SMP_IRQ_REDIRECTION) writeb(0x0f, ipi_base_addr + XTP_OFFSET); /* Set XTP to max */ } #endif /* CONFIG_SMP */ #endif /* _ASM_IA64_XTP_Hy */