summaryrefslogtreecommitdiffstats
path: root/include/asm-s390/processor.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-s390/processor.h')
-rw-r--r--include/asm-s390/processor.h360
1 files changed, 0 insertions, 360 deletions
diff --git a/include/asm-s390/processor.h b/include/asm-s390/processor.h
deleted file mode 100644
index 4af80af2a88..00000000000
--- a/include/asm-s390/processor.h
+++ /dev/null
@@ -1,360 +0,0 @@
-/*
- * include/asm-s390/processor.h
- *
- * S390 version
- * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
- * Author(s): Hartmut Penner (hp@de.ibm.com),
- * Martin Schwidefsky (schwidefsky@de.ibm.com)
- *
- * Derived from "include/asm-i386/processor.h"
- * Copyright (C) 1994, Linus Torvalds
- */
-
-#ifndef __ASM_S390_PROCESSOR_H
-#define __ASM_S390_PROCESSOR_H
-
-#include <asm/ptrace.h>
-
-#ifdef __KERNEL__
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ void *pc; asm("basr %0,0" : "=a" (pc)); pc; })
-
-/*
- * CPU type and hardware bug flags. Kept separately for each CPU.
- * Members of this structure are referenced in head.S, so think twice
- * before touching them. [mj]
- */
-
-typedef struct
-{
- unsigned int version : 8;
- unsigned int ident : 24;
- unsigned int machine : 16;
- unsigned int unused : 16;
-} __attribute__ ((packed)) cpuid_t;
-
-static inline void get_cpu_id(cpuid_t *ptr)
-{
- asm volatile("stidp 0(%1)" : "=m" (*ptr) : "a" (ptr));
-}
-
-struct cpuinfo_S390
-{
- cpuid_t cpu_id;
- __u16 cpu_addr;
- __u16 cpu_nr;
- unsigned long loops_per_jiffy;
- unsigned long *pgd_quick;
-#ifdef __s390x__
- unsigned long *pmd_quick;
-#endif /* __s390x__ */
- unsigned long *pte_quick;
- unsigned long pgtable_cache_sz;
-};
-
-extern void s390_adjust_jiffies(void);
-extern void print_cpu_info(struct cpuinfo_S390 *);
-extern int get_cpu_capability(unsigned int *);
-
-/*
- * User space process size: 2GB for 31 bit, 4TB for 64 bit.
- */
-#ifndef __s390x__
-
-#define TASK_SIZE (1UL << 31)
-#define TASK_UNMAPPED_BASE (1UL << 30)
-
-#else /* __s390x__ */
-
-#define TASK_SIZE_OF(tsk) (test_tsk_thread_flag(tsk,TIF_31BIT) ? \
- (1UL << 31) : (1UL << 53))
-#define TASK_UNMAPPED_BASE (test_thread_flag(TIF_31BIT) ? \
- (1UL << 30) : (1UL << 41))
-#define TASK_SIZE TASK_SIZE_OF(current)
-
-#endif /* __s390x__ */
-
-#ifdef __KERNEL__
-
-#ifndef __s390x__
-#define STACK_TOP (1UL << 31)
-#define STACK_TOP_MAX (1UL << 31)
-#else /* __s390x__ */
-#define STACK_TOP (1UL << (test_thread_flag(TIF_31BIT) ? 31:42))
-#define STACK_TOP_MAX (1UL << 42)
-#endif /* __s390x__ */
-
-
-#endif
-
-#define HAVE_ARCH_PICK_MMAP_LAYOUT
-
-typedef struct {
- __u32 ar4;
-} mm_segment_t;
-
-/*
- * Thread structure
- */
-struct thread_struct {
- s390_fp_regs fp_regs;
- unsigned int acrs[NUM_ACRS];
- unsigned long ksp; /* kernel stack pointer */
- mm_segment_t mm_segment;
- unsigned long prot_addr; /* address of protection-excep. */
- unsigned int trap_no;
- per_struct per_info;
- /* Used to give failing instruction back to user for ieee exceptions */
- unsigned long ieee_instruction_pointer;
- /* pfault_wait is used to block the process on a pfault event */
- unsigned long pfault_wait;
-};
-
-typedef struct thread_struct thread_struct;
-
-/*
- * Stack layout of a C stack frame.
- */
-#ifndef __PACK_STACK
-struct stack_frame {
- unsigned long back_chain;
- unsigned long empty1[5];
- unsigned long gprs[10];
- unsigned int empty2[8];
-};
-#else
-struct stack_frame {
- unsigned long empty1[5];
- unsigned int empty2[8];
- unsigned long gprs[10];
- unsigned long back_chain;
-};
-#endif
-
-#define ARCH_MIN_TASKALIGN 8
-
-#define INIT_THREAD { \
- .ksp = sizeof(init_stack) + (unsigned long) &init_stack, \
-}
-
-/*
- * Do necessary setup to start up a new thread.
- */
-#define start_thread(regs, new_psw, new_stackp) do { \
- set_fs(USER_DS); \
- regs->psw.mask = psw_user_bits; \
- regs->psw.addr = new_psw | PSW_ADDR_AMODE; \
- regs->gprs[15] = new_stackp; \
-} while (0)
-
-#define start_thread31(regs, new_psw, new_stackp) do { \
- set_fs(USER_DS); \
- regs->psw.mask = psw_user32_bits; \
- regs->psw.addr = new_psw | PSW_ADDR_AMODE; \
- regs->gprs[15] = new_stackp; \
- crst_table_downgrade(current->mm, 1UL << 31); \
-} while (0)
-
-/* Forward declaration, a strange C thing */
-struct task_struct;
-struct mm_struct;
-struct seq_file;
-
-/* Free all resources held by a thread. */
-extern void release_thread(struct task_struct *);
-extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
-
-/* Prepare to copy thread state - unlazy all lazy status */
-#define prepare_to_copy(tsk) do { } while (0)
-
-/*
- * Return saved PC of a blocked thread.
- */
-extern unsigned long thread_saved_pc(struct task_struct *t);
-
-/*
- * Print register of task into buffer. Used in fs/proc/array.c.
- */
-extern void task_show_regs(struct seq_file *m, struct task_struct *task);
-
-extern void show_code(struct pt_regs *regs);
-
-unsigned long get_wchan(struct task_struct *p);
-#define task_pt_regs(tsk) ((struct pt_regs *) \
- (task_stack_page(tsk) + THREAD_SIZE) - 1)
-#define KSTK_EIP(tsk) (task_pt_regs(tsk)->psw.addr)
-#define KSTK_ESP(tsk) (task_pt_regs(tsk)->gprs[15])
-
-/*
- * Give up the time slice of the virtual PU.
- */
-static inline void cpu_relax(void)
-{
- if (MACHINE_HAS_DIAG44)
- asm volatile("diag 0,0,68");
- barrier();
-}
-
-static inline void psw_set_key(unsigned int key)
-{
- asm volatile("spka 0(%0)" : : "d" (key));
-}
-
-/*
- * Set PSW to specified value.
- */
-static inline void __load_psw(psw_t psw)
-{
-#ifndef __s390x__
- asm volatile("lpsw 0(%0)" : : "a" (&psw), "m" (psw) : "cc");
-#else
- asm volatile("lpswe 0(%0)" : : "a" (&psw), "m" (psw) : "cc");
-#endif
-}
-
-/*
- * Set PSW mask to specified value, while leaving the
- * PSW addr pointing to the next instruction.
- */
-
-static inline void __load_psw_mask (unsigned long mask)
-{
- unsigned long addr;
- psw_t psw;
-
- psw.mask = mask;
-
-#ifndef __s390x__
- asm volatile(
- " basr %0,0\n"
- "0: ahi %0,1f-0b\n"
- " st %0,4(%1)\n"
- " lpsw 0(%1)\n"
- "1:"
- : "=&d" (addr) : "a" (&psw), "m" (psw) : "memory", "cc");
-#else /* __s390x__ */
- asm volatile(
- " larl %0,1f\n"
- " stg %0,8(%1)\n"
- " lpswe 0(%1)\n"
- "1:"
- : "=&d" (addr) : "a" (&psw), "m" (psw) : "memory", "cc");
-#endif /* __s390x__ */
-}
-
-/*
- * Function to stop a processor until an interruption occurred
- */
-static inline void enabled_wait(void)
-{
- __load_psw_mask(PSW_BASE_BITS | PSW_MASK_IO | PSW_MASK_EXT |
- PSW_MASK_MCHECK | PSW_MASK_WAIT | PSW_DEFAULT_KEY);
-}
-
-/*
- * Function to drop a processor into disabled wait state
- */
-
-static inline void disabled_wait(unsigned long code)
-{
- unsigned long ctl_buf;
- psw_t dw_psw;
-
- dw_psw.mask = PSW_BASE_BITS | PSW_MASK_WAIT;
- dw_psw.addr = code;
- /*
- * Store status and then load disabled wait psw,
- * the processor is dead afterwards
- */
-#ifndef __s390x__
- asm volatile(
- " stctl 0,0,0(%2)\n"
- " ni 0(%2),0xef\n" /* switch off protection */
- " lctl 0,0,0(%2)\n"
- " stpt 0xd8\n" /* store timer */
- " stckc 0xe0\n" /* store clock comparator */
- " stpx 0x108\n" /* store prefix register */
- " stam 0,15,0x120\n" /* store access registers */
- " std 0,0x160\n" /* store f0 */
- " std 2,0x168\n" /* store f2 */
- " std 4,0x170\n" /* store f4 */
- " std 6,0x178\n" /* store f6 */
- " stm 0,15,0x180\n" /* store general registers */
- " stctl 0,15,0x1c0\n" /* store control registers */
- " oi 0x1c0,0x10\n" /* fake protection bit */
- " lpsw 0(%1)"
- : "=m" (ctl_buf)
- : "a" (&dw_psw), "a" (&ctl_buf), "m" (dw_psw) : "cc");
-#else /* __s390x__ */
- asm volatile(
- " stctg 0,0,0(%2)\n"
- " ni 4(%2),0xef\n" /* switch off protection */
- " lctlg 0,0,0(%2)\n"
- " lghi 1,0x1000\n"
- " stpt 0x328(1)\n" /* store timer */
- " stckc 0x330(1)\n" /* store clock comparator */
- " stpx 0x318(1)\n" /* store prefix register */
- " stam 0,15,0x340(1)\n"/* store access registers */
- " stfpc 0x31c(1)\n" /* store fpu control */
- " std 0,0x200(1)\n" /* store f0 */
- " std 1,0x208(1)\n" /* store f1 */
- " std 2,0x210(1)\n" /* store f2 */
- " std 3,0x218(1)\n" /* store f3 */
- " std 4,0x220(1)\n" /* store f4 */
- " std 5,0x228(1)\n" /* store f5 */
- " std 6,0x230(1)\n" /* store f6 */
- " std 7,0x238(1)\n" /* store f7 */
- " std 8,0x240(1)\n" /* store f8 */
- " std 9,0x248(1)\n" /* store f9 */
- " std 10,0x250(1)\n" /* store f10 */
- " std 11,0x258(1)\n" /* store f11 */
- " std 12,0x260(1)\n" /* store f12 */
- " std 13,0x268(1)\n" /* store f13 */
- " std 14,0x270(1)\n" /* store f14 */
- " std 15,0x278(1)\n" /* store f15 */
- " stmg 0,15,0x280(1)\n"/* store general registers */
- " stctg 0,15,0x380(1)\n"/* store control registers */
- " oi 0x384(1),0x10\n"/* fake protection bit */
- " lpswe 0(%1)"
- : "=m" (ctl_buf)
- : "a" (&dw_psw), "a" (&ctl_buf), "m" (dw_psw) : "cc", "0");
-#endif /* __s390x__ */
-}
-
-/*
- * Basic Machine Check/Program Check Handler.
- */
-
-extern void s390_base_mcck_handler(void);
-extern void s390_base_pgm_handler(void);
-extern void s390_base_ext_handler(void);
-
-extern void (*s390_base_mcck_handler_fn)(void);
-extern void (*s390_base_pgm_handler_fn)(void);
-extern void (*s390_base_ext_handler_fn)(void);
-
-#define ARCH_LOW_ADDRESS_LIMIT 0x7fffffffUL
-
-#endif
-
-/*
- * Helper macro for exception table entries
- */
-#ifndef __s390x__
-#define EX_TABLE(_fault,_target) \
- ".section __ex_table,\"a\"\n" \
- " .align 4\n" \
- " .long " #_fault "," #_target "\n" \
- ".previous\n"
-#else
-#define EX_TABLE(_fault,_target) \
- ".section __ex_table,\"a\"\n" \
- " .align 8\n" \
- " .quad " #_fault "," #_target "\n" \
- ".previous\n"
-#endif
-
-#endif /* __ASM_S390_PROCESSOR_H */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-03 02:52:35 +0000