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authorRalf Baechle <ralf@linux-mips.org>2005-05-31 11:49:19 +0000
committerRalf Baechle <ralf@linux-mips.org>2005-10-29 19:31:17 +0100
commite50c0a8fa60da9ac0e0a70caa8a3a803815c1f2f (patch)
tree1928e8b0a4b7fb615e5a9f65dc934ba2e74cb9cd /arch/mips/kernel/signal32.c
parent10f650db1bcc193ea07d4f8c2f07315da38ea0c4 (diff)
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.c34
1 files changed, 25 insertions, 9 deletions
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index 5e7d0fa0267..8639e24732a 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(&current->sighand->siglock);
sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);