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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/signal-common.h
parent10f650db1bcc193ea07d4f8c2f07315da38ea0c4 (diff)
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.h56
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]); \