diff options
Diffstat (limited to 'arch/mips/math-emu/dsemul.c')
| -rw-r--r-- | arch/mips/math-emu/dsemul.c | 35 |
1 files changed, 7 insertions, 28 deletions
diff --git a/arch/mips/math-emu/dsemul.c b/arch/mips/math-emu/dsemul.c index 7ea622ab8da..4f514f3724c 100644 --- a/arch/mips/math-emu/dsemul.c +++ b/arch/mips/math-emu/dsemul.c @@ -1,30 +1,12 @@ -#include <linux/compiler.h> -#include <linux/mm.h> -#include <linux/signal.h> -#include <linux/smp.h> - -#include <asm/asm.h> -#include <asm/bootinfo.h> -#include <asm/byteorder.h> -#include <asm/cpu.h> -#include <asm/inst.h> -#include <asm/processor.h> -#include <asm/uaccess.h> #include <asm/branch.h> -#include <asm/mipsregs.h> #include <asm/cacheflush.h> - #include <asm/fpu_emulator.h> +#include <asm/inst.h> +#include <asm/mipsregs.h> +#include <asm/uaccess.h> #include "ieee754.h" -/* Strap kernel emulator for full MIPS IV emulation */ - -#ifdef __mips -#undef __mips -#endif -#define __mips 4 - /* * Emulate the arbritrary instruction ir at xcp->cp0_epc. Required when * we have to emulate the instruction in a COP1 branch delay slot. Do @@ -59,13 +41,11 @@ int mips_dsemul(struct pt_regs *regs, mips_instruction ir, unsigned long cpc) (ir == 0)) { /* NOP is easy */ regs->cp0_epc = cpc; - regs->cp0_cause &= ~CAUSEF_BD; + clear_delay_slot(regs); return 0; } -#ifdef DSEMUL_TRACE - printk("dsemul %lx %lx\n", regs->cp0_epc, cpc); -#endif + pr_debug("dsemul %lx %lx\n", regs->cp0_epc, cpc); /* * The strategy is to push the instruction onto the user stack @@ -167,9 +147,8 @@ int do_dsemulret(struct pt_regs *xcp) * emulating the branch delay instruction. */ -#ifdef DSEMUL_TRACE - printk("dsemulret\n"); -#endif + pr_debug("dsemulret\n"); + if (__get_user(epc, &fr->epc)) { /* Saved EPC */ /* This is not a good situation to be in */ force_sig(SIGBUS, current); |