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| author | marcel <marcel@FreeBSD.org> | 2003-08-11 01:38:23 +0000 |
|---|---|---|
| committer | marcel <marcel@FreeBSD.org> | 2003-08-11 01:38:23 +0000 |
| commit | 2a20cf3396d6f697ba6298d2dc11a5f2b46fd722 (patch) | |
| tree | c9aee047560178b921d2c5d44fda3ccaf984ee8d /sys/alpha | |
| parent | 1625d6386b23ec96cdde63544081b5711aac0e45 (diff) | |
| download | FreeBSD-src-2a20cf3396d6f697ba6298d2dc11a5f2b46fd722.zip FreeBSD-src-2a20cf3396d6f697ba6298d2dc11a5f2b46fd722.tar.gz | |
Implement cpu_set_upcall_kse(). Further tweaking may be needed after
testing.
Diffstat (limited to 'sys/alpha')
| -rw-r--r-- | sys/alpha/alpha/vm_machdep.c | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/sys/alpha/alpha/vm_machdep.c b/sys/alpha/alpha/vm_machdep.c index dfac217..3611280 100644 --- a/sys/alpha/alpha/vm_machdep.c +++ b/sys/alpha/alpha/vm_machdep.c @@ -248,8 +248,6 @@ cpu_sched_exit(td) void cpu_thread_exit(struct thread *td) { - - return; } void @@ -318,8 +316,31 @@ cpu_set_upcall(struct thread *td, struct thread *td0) void cpu_set_upcall_kse(struct thread *td, struct kse_upcall *ku) { - - /* XXX */ + struct pcb *pcb; + struct trapframe *tf; + uint64_t stack; + + pcb = td->td_pcb; + tf = td->td_frame; + stack = ((uint64_t)ku->ku_stack.ss_sp + ku->ku_stack.ss_size) & ~15; + + bzero(tf->tf_regs, FRAME_SIZE * sizeof(tf->tf_regs[0])); + bzero(&pcb->pcb_fp, sizeof(pcb->pcb_fp)); + pcb->pcb_fp_control = 0; + pcb->pcb_fp.fpr_cr = FPCR_DYN_NORMAL | FPCR_INVD | FPCR_DZED | + FPCR_OVFD | FPCR_INED | FPCR_UNFD; + if (td != curthread) { + pcb->pcb_hw.apcb_usp = stack; + pcb->pcb_hw.apcb_unique = 0; + } else { + alpha_pal_wrusp(stack); + alpha_pal_wrunique(0); + } + tf->tf_regs[FRAME_PS] = ALPHA_PSL_USERSET; + tf->tf_regs[FRAME_PC] = (u_long)ku->ku_func; + tf->tf_regs[FRAME_A0] = (u_long)ku->ku_mailbox; + tf->tf_regs[FRAME_T12] = tf->tf_regs[FRAME_PC]; /* aka. PV */ + tf->tf_regs[FRAME_FLAGS] = 0; /* full restore */ } /* |
