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Hexagon: add support for new v4+ registers

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Add support for a couple new v4+ registers, along with
newer save/restore pt_regs.

Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
This commit is contained in:
Richard Kuo
2012-03-27 17:38:09 -05:00
parent 444dd742d3
commit 60c4ba99e0
8 changed files with 206 additions and 48 deletions
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10
arch/hexagon/kernel/signal.c
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@@ -66,7 +66,10 @@ static int setup_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
err |= __put_user(regs->preds, &sc->sc_regs.p3_0);
err |= __put_user(regs->gp, &sc->sc_regs.gp);
err |= __put_user(regs->ugp, &sc->sc_regs.ugp);
#if CONFIG_HEXAGON_ARCH_VERSION >= 4
err |= __put_user(regs->cs0, &sc->sc_regs.cs0);
err |= __put_user(regs->cs1, &sc->sc_regs.cs1);
#endif
tmp = pt_elr(regs); err |= __put_user(tmp, &sc->sc_regs.pc);
tmp = pt_cause(regs); err |= __put_user(tmp, &sc->sc_regs.cause);
tmp = pt_badva(regs); err |= __put_user(tmp, &sc->sc_regs.badva);
@@ -93,7 +96,10 @@ static int restore_sigcontext(struct pt_regs *regs,
err |= __get_user(regs->preds, &sc->sc_regs.p3_0);
err |= __get_user(regs->gp, &sc->sc_regs.gp);
err |= __get_user(regs->ugp, &sc->sc_regs.ugp);
#if CONFIG_HEXAGON_ARCH_VERSION >= 4
err |= __get_user(regs->cs0, &sc->sc_regs.cs0);
err |= __get_user(regs->cs1, &sc->sc_regs.cs1);
#endif
err |= __get_user(tmp, &sc->sc_regs.pc); pt_set_elr(regs, tmp);
return err;