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| author | Ralf Baechle <ralf@linux-mips.org> | 2005-05-31 11:49:19 +0000 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2005-10-29 19:31:17 +0100 |
| commit | e50c0a8fa60da9ac0e0a70caa8a3a803815c1f2f (patch) | |
| tree | 1928e8b0a4b7fb615e5a9f65dc934ba2e74cb9cd /arch/mips/kernel/signal-common.h | |
| parent | 10f650db1bcc193ea07d4f8c2f07315da38ea0c4 (diff) | |
| download | lwn-e50c0a8fa60da9ac0e0a70caa8a3a803815c1f2f.tar.gz lwn-e50c0a8fa60da9ac0e0a70caa8a3a803815c1f2f.zip | |
Support the MIPS32 / MIPS64 DSP ASE.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/signal-common.h')
| -rw-r--r-- | arch/mips/kernel/signal-common.h | 56 |
1 files changed, 52 insertions, 4 deletions
diff --git a/arch/mips/kernel/signal-common.h b/arch/mips/kernel/signal-common.h index f9234df53253..3208ff528cd2 100644 --- a/arch/mips/kernel/signal-common.h +++ b/arch/mips/kernel/signal-common.h @@ -8,13 +8,14 @@ * Copyright (C) 1999, 2000 Silicon Graphics, Inc. */ +#include <linux/config.h> + static inline int setup_sigcontext(struct pt_regs *regs, struct sigcontext *sc) { int err = 0; err |= __put_user(regs->cp0_epc, &sc->sc_pc); - err |= __put_user(regs->cp0_status, &sc->sc_status); #define save_gp_reg(i) do { \ err |= __put_user(regs->regs[i], &sc->sc_regs[i]); \ @@ -30,10 +31,32 @@ setup_sigcontext(struct pt_regs *regs, struct sigcontext *sc) save_gp_reg(31); #undef save_gp_reg +#ifdef CONFIG_32BIT err |= __put_user(regs->hi, &sc->sc_mdhi); err |= __put_user(regs->lo, &sc->sc_mdlo); - err |= __put_user(regs->cp0_cause, &sc->sc_cause); - err |= __put_user(regs->cp0_badvaddr, &sc->sc_badvaddr); + if (cpu_has_dsp) { + err |= __put_user(mfhi1(), &sc->sc_hi1); + err |= __put_user(mflo1(), &sc->sc_lo1); + err |= __put_user(mfhi2(), &sc->sc_hi2); + err |= __put_user(mflo2(), &sc->sc_lo2); + err |= __put_user(mfhi3(), &sc->sc_hi3); + err |= __put_user(mflo3(), &sc->sc_lo3); + err |= __put_user(rddsp(DSP_MASK), &sc->sc_dsp); + } +#endif +#ifdef CONFIG_64BIT + err |= __put_user(regs->hi, &sc->sc_hi[0]); + err |= __put_user(regs->lo, &sc->sc_lo[0]); + if (cpu_has_dsp) { + err |= __put_user(mfhi1(), &sc->sc_hi[1]); + err |= __put_user(mflo1(), &sc->sc_lo[1]); + err |= __put_user(mfhi2(), &sc->sc_hi[2]); + err |= __put_user(mflo2(), &sc->sc_lo[2]); + err |= __put_user(mfhi3(), &sc->sc_hi[3]); + err |= __put_user(mflo3(), &sc->sc_lo[3]); + err |= __put_user(rddsp(DSP_MASK), &sc->sc_dsp); + } +#endif err |= __put_user(!!used_math(), &sc->sc_used_math); @@ -61,15 +84,40 @@ out: static inline int restore_sigcontext(struct pt_regs *regs, struct sigcontext *sc) { - int err = 0; unsigned int used_math; + unsigned long treg; + int err = 0; /* Always make any pending restarted system calls return -EINTR */ current_thread_info()->restart_block.fn = do_no_restart_syscall; err |= __get_user(regs->cp0_epc, &sc->sc_pc); +#ifdef CONFIG_32BIT err |= __get_user(regs->hi, &sc->sc_mdhi); err |= __get_user(regs->lo, &sc->sc_mdlo); + if (cpu_has_dsp) { + err |= __get_user(treg, &sc->sc_hi1); mthi1(treg); + err |= __get_user(treg, &sc->sc_lo1); mtlo1(treg); + err |= __get_user(treg, &sc->sc_hi2); mthi2(treg); + err |= __get_user(treg, &sc->sc_lo2); mtlo2(treg); + err |= __get_user(treg, &sc->sc_hi3); mthi3(treg); + err |= __get_user(treg, &sc->sc_lo3); mtlo3(treg); + err |= __get_user(treg, &sc->sc_dsp); wrdsp(treg, DSP_MASK); + } +#endif +#ifdef CONFIG_64BIT + err |= __get_user(regs->hi, &sc->sc_hi[0]); + err |= __get_user(regs->lo, &sc->sc_lo[0]); + if (cpu_has_dsp) { + err |= __get_user(treg, &sc->sc_hi[1]); mthi1(treg); + err |= __get_user(treg, &sc->sc_lo[1]); mthi1(treg); + err |= __get_user(treg, &sc->sc_hi[2]); mthi2(treg); + err |= __get_user(treg, &sc->sc_lo[2]); mthi2(treg); + err |= __get_user(treg, &sc->sc_hi[3]); mthi3(treg); + err |= __get_user(treg, &sc->sc_lo[3]); mthi3(treg); + err |= __get_user(treg, &sc->sc_dsp); wrdsp(treg, DSP_MASK); + } +#endif #define restore_gp_reg(i) do { \ err |= __get_user(regs->regs[i], &sc->sc_regs[i]); \ |