cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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irq.h (2693B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef _ASM_IRQ_H
      3#define _ASM_IRQ_H
      4
      5#define EXT_INTERRUPT	0
      6#define IO_INTERRUPT	1
      7#define THIN_INTERRUPT	2
      8
      9#define NR_IRQS_BASE	3
     10
     11#define NR_IRQS	NR_IRQS_BASE
     12#define NR_IRQS_LEGACY NR_IRQS_BASE
     13
     14/* External interruption codes */
     15#define EXT_IRQ_INTERRUPT_KEY	0x0040
     16#define EXT_IRQ_CLK_COMP	0x1004
     17#define EXT_IRQ_CPU_TIMER	0x1005
     18#define EXT_IRQ_WARNING_TRACK	0x1007
     19#define EXT_IRQ_MALFUNC_ALERT	0x1200
     20#define EXT_IRQ_EMERGENCY_SIG	0x1201
     21#define EXT_IRQ_EXTERNAL_CALL	0x1202
     22#define EXT_IRQ_TIMING_ALERT	0x1406
     23#define EXT_IRQ_MEASURE_ALERT	0x1407
     24#define EXT_IRQ_SERVICE_SIG	0x2401
     25#define EXT_IRQ_CP_SERVICE	0x2603
     26#define EXT_IRQ_IUCV		0x4000
     27
     28#ifndef __ASSEMBLY__
     29
     30#include <linux/hardirq.h>
     31#include <linux/percpu.h>
     32#include <linux/cache.h>
     33#include <linux/types.h>
     34
     35enum interruption_class {
     36	IRQEXT_CLK,
     37	IRQEXT_EXC,
     38	IRQEXT_EMS,
     39	IRQEXT_TMR,
     40	IRQEXT_TLA,
     41	IRQEXT_PFL,
     42	IRQEXT_DSD,
     43	IRQEXT_VRT,
     44	IRQEXT_SCP,
     45	IRQEXT_IUC,
     46	IRQEXT_CMS,
     47	IRQEXT_CMC,
     48	IRQEXT_FTP,
     49	IRQIO_CIO,
     50	IRQIO_DAS,
     51	IRQIO_C15,
     52	IRQIO_C70,
     53	IRQIO_TAP,
     54	IRQIO_VMR,
     55	IRQIO_LCS,
     56	IRQIO_CTC,
     57	IRQIO_ADM,
     58	IRQIO_CSC,
     59	IRQIO_VIR,
     60	IRQIO_QAI,
     61	IRQIO_APB,
     62	IRQIO_PCF,
     63	IRQIO_PCD,
     64	IRQIO_MSI,
     65	IRQIO_VAI,
     66	IRQIO_GAL,
     67	NMI_NMI,
     68	CPU_RST,
     69	NR_ARCH_IRQS
     70};
     71
     72struct irq_stat {
     73	unsigned int irqs[NR_ARCH_IRQS];
     74};
     75
     76DECLARE_PER_CPU_SHARED_ALIGNED(struct irq_stat, irq_stat);
     77
     78static __always_inline void inc_irq_stat(enum interruption_class irq)
     79{
     80	__this_cpu_inc(irq_stat.irqs[irq]);
     81}
     82
     83struct ext_code {
     84	union {
     85		struct {
     86			unsigned short subcode;
     87			unsigned short code;
     88		};
     89		unsigned int int_code;
     90	};
     91};
     92
     93typedef void (*ext_int_handler_t)(struct ext_code, unsigned int, unsigned long);
     94
     95int register_external_irq(u16 code, ext_int_handler_t handler);
     96int unregister_external_irq(u16 code, ext_int_handler_t handler);
     97
     98enum irq_subclass {
     99	IRQ_SUBCLASS_MEASUREMENT_ALERT = 5,
    100	IRQ_SUBCLASS_SERVICE_SIGNAL = 9,
    101};
    102
    103#define CR0_IRQ_SUBCLASS_MASK					  \
    104	((1UL << (63 - 30))  /* Warning Track */		| \
    105	 (1UL << (63 - 48))  /* Malfunction Alert */		| \
    106	 (1UL << (63 - 49))  /* Emergency Signal */		| \
    107	 (1UL << (63 - 50))  /* External Call */		| \
    108	 (1UL << (63 - 52))  /* Clock Comparator */		| \
    109	 (1UL << (63 - 53))  /* CPU Timer */			| \
    110	 (1UL << (63 - 54))  /* Service Signal */		| \
    111	 (1UL << (63 - 57))  /* Interrupt Key */		| \
    112	 (1UL << (63 - 58))  /* Measurement Alert */		| \
    113	 (1UL << (63 - 59))  /* Timing Alert */			| \
    114	 (1UL << (63 - 62))) /* IUCV */
    115
    116void irq_subclass_register(enum irq_subclass subclass);
    117void irq_subclass_unregister(enum irq_subclass subclass);
    118
    119#define irq_canonicalize(irq)  (irq)
    120
    121#endif /* __ASSEMBLY__ */
    122
    123#endif /* _ASM_IRQ_H */