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61 lines
1.3 KiB
61 lines
1.3 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef __ASM_SH_TRAPS_32_H |
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#define __ASM_SH_TRAPS_32_H |
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#include <linux/types.h> |
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#include <asm/mmu.h> |
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#ifdef CONFIG_CPU_HAS_SR_RB |
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#define lookup_exception_vector() \ |
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({ \ |
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unsigned long _vec; \ |
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\ |
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__asm__ __volatile__ ( \ |
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"stc r2_bank, %0\n\t" \ |
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: "=r" (_vec) \ |
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); \ |
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\ |
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_vec; \ |
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}) |
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#else |
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#define lookup_exception_vector() \ |
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({ \ |
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unsigned long _vec; \ |
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__asm__ __volatile__ ( \ |
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"mov r4, %0\n\t" \ |
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: "=r" (_vec) \ |
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); \ |
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\ |
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_vec; \ |
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}) |
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#endif |
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static inline void trigger_address_error(void) |
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{ |
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__asm__ __volatile__ ( |
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"ldc %0, sr\n\t" |
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"mov.l @%1, %0" |
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: |
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: "r" (0x10000000), "r" (0x80000001) |
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); |
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} |
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asmlinkage void do_address_error(struct pt_regs *regs, |
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unsigned long writeaccess, |
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unsigned long address); |
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asmlinkage void do_divide_error(unsigned long r4); |
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asmlinkage void do_reserved_inst(void); |
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asmlinkage void do_illegal_slot_inst(void); |
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asmlinkage void do_exception_error(void); |
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#define BUILD_TRAP_HANDLER(name) \ |
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asmlinkage void name##_trap_handler(unsigned long r4, unsigned long r5, \ |
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unsigned long r6, unsigned long r7, \ |
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struct pt_regs __regs) |
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#define TRAP_HANDLER_DECL \ |
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struct pt_regs *regs = RELOC_HIDE(&__regs, 0); \ |
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unsigned int vec = regs->tra; \ |
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(void)vec; |
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#endif /* __ASM_SH_TRAPS_32_H */
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