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Date: Thu, 11 May 1995 00:44:41 -0700
From: Bruce Evans <bde>
Message-Id: <199505110744.AAA19216@freefall.cdrom.com>
To: CVS-commiters, cvs-sys
Subject: cvs commit: src/sys/i386/isa clock.c
Sender: cvs-sys-owner@freebsd.org
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bde         95/05/11 00:44:40

  Modified:    sys/i386/include  spl.h
               sys/i386/isa  clock.c
  Log:
  Add variable `idelayed' and macros setdelayed() and schedsofttty()
  to access it.  setdelayed() actually ORs the bits in `idelayed' into
  `ipending' and clears `idelayed'.
  
  Call setdelayed() every (normal) clock tick to convert delayed
  interrupts into pending ones.
  
  Drivers can set bits in `idelayed' at any time to schedule an interrupt
  at the next clock tick.  This is more efficient than calling timeout().
  Currently only software interrupts can be scheduled.