Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #ifndef _ASM_IA64_XTP_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #define _ASM_IA64_XTP_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #include <asm/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #ifdef CONFIG_SMP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #define XTP_OFFSET		0x1e0008
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define SMP_IRQ_REDIRECTION	(1 << 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #define SMP_IPI_REDIRECTION	(1 << 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) extern unsigned char smp_int_redirect;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)  * XTP control functions:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)  *	min_xtp   : route all interrupts to this CPU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)  *	normal_xtp: nominal XTP value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)  *	max_xtp   : never deliver interrupts to this CPU.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) min_xtp (void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	if (smp_int_redirect & SMP_IRQ_REDIRECTION)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 		writeb(0x00, ipi_base_addr + XTP_OFFSET); /* XTP to min */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) normal_xtp (void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	if (smp_int_redirect & SMP_IRQ_REDIRECTION)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 		writeb(0x08, ipi_base_addr + XTP_OFFSET); /* XTP normal */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) max_xtp (void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	if (smp_int_redirect & SMP_IRQ_REDIRECTION)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 		writeb(0x0f, ipi_base_addr + XTP_OFFSET); /* Set XTP to max */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #endif /* CONFIG_SMP */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #endif /* _ASM_IA64_XTP_Hy */