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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/signal32.c | |
| parent | 10f650db1bcc193ea07d4f8c2f07315da38ea0c4 (diff) | |
| download | linux-e50c0a8fa60da9ac0e0a70caa8a3a803815c1f2f.tar.gz linux-e50c0a8fa60da9ac0e0a70caa8a3a803815c1f2f.tar.bz2 linux-e50c0a8fa60da9ac0e0a70caa8a3a803815c1f2f.zip | |
Support the MIPS32 / MIPS64 DSP ASE.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/signal32.c')
| -rw-r--r-- | arch/mips/kernel/signal32.c | 34 |
1 files changed, 25 insertions, 9 deletions
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c index 5e7d0fa02672..8639e24732a5 100644 --- a/arch/mips/kernel/signal32.c +++ b/arch/mips/kernel/signal32.c @@ -21,6 +21,7 @@ #include <linux/suspend.h> #include <linux/compiler.h> +#include <asm/abi.h> #include <asm/asm.h> #include <linux/bitops.h> #include <asm/cacheflush.h> @@ -334,8 +335,9 @@ asmlinkage int sys32_sigaltstack(nabi_no_regargs struct pt_regs regs) static int restore_sigcontext32(struct pt_regs *regs, struct sigcontext32 *sc) { + u32 used_math; int err = 0; - __u32 used_math; + s32 treg; /* Always make any pending restarted system calls return -EINTR */ current_thread_info()->restart_block.fn = do_no_restart_syscall; @@ -343,6 +345,15 @@ static int restore_sigcontext32(struct pt_regs *regs, struct sigcontext32 *sc) err |= __get_user(regs->cp0_epc, &sc->sc_pc); 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); + } #define restore_gp_reg(i) do { \ err |= __get_user(regs->regs[i], &sc->sc_regs[i]); \ @@ -562,8 +573,15 @@ static inline int setup_sigcontext32(struct pt_regs *regs, 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(rddsp(DSP_MASK), &sc->sc_hi1); + 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(!!used_math(), &sc->sc_used_math); @@ -613,7 +631,7 @@ static inline void *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, return (void *)((sp - frame_size) & ALMASK); } -static inline void setup_frame(struct k_sigaction * ka, struct pt_regs *regs, +void setup_frame_32(struct k_sigaction * ka, struct pt_regs *regs, int signr, sigset_t *set) { struct sigframe *frame; @@ -666,9 +684,7 @@ give_sigsegv: force_sigsegv(signr, current); } -static inline void setup_rt_frame(struct k_sigaction * ka, - struct pt_regs *regs, int signr, - sigset_t *set, siginfo_t *info) +void setup_rt_frame_32(struct k_sigaction * ka, struct pt_regs *regs, int signr, sigset_t *set, siginfo_t *info) { struct rt_sigframe32 *frame; int err = 0; @@ -759,9 +775,9 @@ static inline void handle_signal(unsigned long sig, siginfo_t *info, regs->regs[0] = 0; /* Don't deal with this again. */ if (ka->sa.sa_flags & SA_SIGINFO) - setup_rt_frame(ka, regs, sig, oldset, info); + current->thread.abi->setup_rt_frame(ka, regs, sig, oldset, info); else - setup_frame(ka, regs, sig, oldset); + current->thread.abi->setup_frame(ka, regs, sig, oldset); spin_lock_irq(¤t->sighand->siglock); sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); |