1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #ifndef __ALPHA_IRQFLAGS_H 3*4882a593Smuzhiyun #define __ALPHA_IRQFLAGS_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun #include <asm/pal.h> 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun #define IPL_MIN 0 8*4882a593Smuzhiyun #define IPL_SW0 1 9*4882a593Smuzhiyun #define IPL_SW1 2 10*4882a593Smuzhiyun #define IPL_DEV0 3 11*4882a593Smuzhiyun #define IPL_DEV1 4 12*4882a593Smuzhiyun #define IPL_TIMER 5 13*4882a593Smuzhiyun #define IPL_PERF 6 14*4882a593Smuzhiyun #define IPL_POWERFAIL 6 15*4882a593Smuzhiyun #define IPL_MCHECK 7 16*4882a593Smuzhiyun #define IPL_MAX 7 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun #ifdef CONFIG_ALPHA_BROKEN_IRQ_MASK 19*4882a593Smuzhiyun #undef IPL_MIN 20*4882a593Smuzhiyun #define IPL_MIN __min_ipl 21*4882a593Smuzhiyun extern int __min_ipl; 22*4882a593Smuzhiyun #endif 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun #define getipl() (rdps() & 7) 25*4882a593Smuzhiyun #define setipl(ipl) ((void) swpipl(ipl)) 26*4882a593Smuzhiyun arch_local_save_flags(void)27*4882a593Smuzhiyunstatic inline unsigned long arch_local_save_flags(void) 28*4882a593Smuzhiyun { 29*4882a593Smuzhiyun return rdps(); 30*4882a593Smuzhiyun } 31*4882a593Smuzhiyun arch_local_irq_disable(void)32*4882a593Smuzhiyunstatic inline void arch_local_irq_disable(void) 33*4882a593Smuzhiyun { 34*4882a593Smuzhiyun setipl(IPL_MAX); 35*4882a593Smuzhiyun barrier(); 36*4882a593Smuzhiyun } 37*4882a593Smuzhiyun arch_local_irq_save(void)38*4882a593Smuzhiyunstatic inline unsigned long arch_local_irq_save(void) 39*4882a593Smuzhiyun { 40*4882a593Smuzhiyun unsigned long flags = swpipl(IPL_MAX); 41*4882a593Smuzhiyun barrier(); 42*4882a593Smuzhiyun return flags; 43*4882a593Smuzhiyun } 44*4882a593Smuzhiyun arch_local_irq_enable(void)45*4882a593Smuzhiyunstatic inline void arch_local_irq_enable(void) 46*4882a593Smuzhiyun { 47*4882a593Smuzhiyun barrier(); 48*4882a593Smuzhiyun setipl(IPL_MIN); 49*4882a593Smuzhiyun } 50*4882a593Smuzhiyun arch_local_irq_restore(unsigned long flags)51*4882a593Smuzhiyunstatic inline void arch_local_irq_restore(unsigned long flags) 52*4882a593Smuzhiyun { 53*4882a593Smuzhiyun barrier(); 54*4882a593Smuzhiyun setipl(flags); 55*4882a593Smuzhiyun barrier(); 56*4882a593Smuzhiyun } 57*4882a593Smuzhiyun arch_irqs_disabled_flags(unsigned long flags)58*4882a593Smuzhiyunstatic inline bool arch_irqs_disabled_flags(unsigned long flags) 59*4882a593Smuzhiyun { 60*4882a593Smuzhiyun return flags == IPL_MAX; 61*4882a593Smuzhiyun } 62*4882a593Smuzhiyun arch_irqs_disabled(void)63*4882a593Smuzhiyunstatic inline bool arch_irqs_disabled(void) 64*4882a593Smuzhiyun { 65*4882a593Smuzhiyun return arch_irqs_disabled_flags(getipl()); 66*4882a593Smuzhiyun } 67*4882a593Smuzhiyun 68*4882a593Smuzhiyun #endif /* __ALPHA_IRQFLAGS_H */ 69