6a01f23033
[Mike Frysinger <vapier.adi@gmail.com>:
- handle bf531/bf532/bf534/bf536 variants in ipipe.h
- cleanup IPIPE logic for bfin_set_irq_handler()
- cleanup ipipe asm code a bit and add missing ENDPROC()
- simplify IPIPE code in trap_c
- unify some of the IPIPE code and fix style
- simplify DO_IRQ_L1 handling with ipipe code
- revert IRQ_SW_INT# addition from ipipe merge
- remove duplicate get_{c,s}clk() prototypes
]
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
72 lines
2 KiB
C
72 lines
2 KiB
C
#ifndef __BFIN_ENTRY_H
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#define __BFIN_ENTRY_H
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#include <asm/setup.h>
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#include <asm/page.h>
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#ifdef __ASSEMBLY__
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#define LFLUSH_I_AND_D 0x00000808
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#define LSIGTRAP 5
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/* process bits for task_struct.flags */
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#define PF_TRACESYS_OFF 3
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#define PF_TRACESYS_BIT 5
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#define PF_PTRACED_OFF 3
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#define PF_PTRACED_BIT 4
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#define PF_DTRACE_OFF 1
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#define PF_DTRACE_BIT 5
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/*
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* NOTE! The single-stepping code assumes that all interrupt handlers
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* start by saving SYSCFG on the stack with their first instruction.
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*/
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/* This one is used for exceptions, emulation, and NMI. It doesn't push
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RETI and doesn't do cli. */
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#define SAVE_ALL_SYS save_context_no_interrupts
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/* This is used for all normal interrupts. It saves a minimum of registers
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to the stack, loads the IRQ number, and jumps to common code. */
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#ifdef CONFIG_IPIPE
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# define LOAD_IPIPE_IPEND \
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P0.l = lo(IPEND); \
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P0.h = hi(IPEND); \
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R1 = [P0];
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#else
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# define LOAD_IPIPE_IPEND
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#endif
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#define INTERRUPT_ENTRY(N) \
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[--sp] = SYSCFG; \
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\
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[--sp] = P0; /*orig_p0*/ \
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[--sp] = R0; /*orig_r0*/ \
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[--sp] = (R7:0,P5:0); \
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R0 = (N); \
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LOAD_IPIPE_IPEND \
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jump __common_int_entry;
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/* For timer interrupts, we need to save IPEND, since the user_mode
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macro accesses it to determine where to account time. */
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#define TIMER_INTERRUPT_ENTRY(N) \
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[--sp] = SYSCFG; \
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\
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[--sp] = P0; /*orig_p0*/ \
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[--sp] = R0; /*orig_r0*/ \
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[--sp] = (R7:0,P5:0); \
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p0.l = lo(IPEND); \
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p0.h = hi(IPEND); \
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r1 = [p0]; \
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R0 = (N); \
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jump __common_int_entry;
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/* This one pushes RETI without using CLI. Interrupts are enabled. */
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#define SAVE_CONTEXT_SYSCALL save_context_syscall
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#define SAVE_CONTEXT save_context_with_interrupts
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#define SAVE_CONTEXT_CPLB save_context_cplb
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#define RESTORE_ALL_SYS restore_context_no_interrupts
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#define RESTORE_CONTEXT restore_context_with_interrupts
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#define RESTORE_CONTEXT_CPLB restore_context_cplb
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#endif /* __ASSEMBLY__ */
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#endif /* __BFIN_ENTRY_H */
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