/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_CRIS_ARCH_PROCESSOR_H #define _ASM_CRIS_ARCH_PROCESSOR_H /* Return current instruction pointer. */ #define current_text_addr() \ ({void *pc; __asm__ __volatile__ ("lapcq .,%0" : "=rm" (pc)); pc;}) /* * Since CRIS doesn't do hardware task-switching this hasn't really anything to * do with the proccessor itself, it's just here for legacy reasons. This is * used when task-switching using _resume defined in entry.S. The offsets here * are hardcoded into _resume, so if this struct is changed, entry.S needs to be * changed as well. */ struct thread_struct { unsigned long ksp; /* Kernel stack pointer. */ unsigned long usp; /* User stack pointer. */ unsigned long ccs; /* Saved flags register. */ }; /* * User-space process size. This is hardcoded into a few places, so don't * change it unless everything's clear! */ #define TASK_SIZE (0xB0000000UL) #define INIT_THREAD { } #define KSTK_EIP(tsk) \ ({ \ unsigned long eip = 0; \ unsigned long regs = (unsigned long)task_pt_regs(tsk); \ if (regs > PAGE_SIZE && virt_addr_valid(regs)) \ eip = ((struct pt_regs *)regs)->erp; \ eip; \ }) /* * Give the thread a program location, set user-mode and switch user * stackpointer. */ #define start_thread(regs, ip, usp) \ do { \ regs->erp = ip; \ regs->ccs |= 1 << (U_CCS_BITNR + CCS_SHIFT); \ wrusp(usp); \ } while(0) /* Nothing special to do for v32 when handling a kernel bus fault fixup. */ #define arch_fixup(regs) {}; #endif /* _ASM_CRIS_ARCH_PROCESSOR_H */
Name | Type | Size | Permission | Actions |
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hwregs | Folder | 0755 |
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bitops.h | File | 1.29 KB | 0644 |
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bug.h | File | 1008 B | 0644 |
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cache.h | File | 601 B | 0644 |
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checksum.h | File | 807 B | 0644 |
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cryptocop.h | File | 4.25 KB | 0644 |
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delay.h | File | 649 B | 0644 |
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dma.h | File | 22 B | 0644 |
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intmem.h | File | 339 B | 0644 |
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irq.h | File | 3.55 KB | 0644 |
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irqflags.h | File | 1 KB | 0644 |
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memmap.h | File | 25 B | 0644 |
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mmu.h | File | 4.07 KB | 0644 |
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offset.h | File | 1.29 KB | 0644 |
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page.h | File | 660 B | 0644 |
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pgtable.h | File | 483 B | 0644 |
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processor.h | File | 1.52 KB | 0644 |
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swab.h | File | 517 B | 0644 |
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system.h | File | 803 B | 0644 |
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thread_info.h | File | 363 B | 0644 |
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timex.h | File | 852 B | 0644 |
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tlb.h | File | 453 B | 0644 |
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uaccess.h | File | 18.38 KB | 0644 |
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unistd.h | File | 4.58 KB | 0644 |
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