Date: Fri, 24 Aug 2001 10:29:42 -0700 (PDT) From: Warner Losh <imp@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/pccard pcic_pci.c Message-ID: <200108241729.f7OHTg283006@freefall.freebsd.org>
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imp 2001/08/24 10:29:42 PDT
Modified files:
sys/pccard pcic_pci.c
Log:
Explain what we're doing in pcic_pci_shutdown a little better. Try to
explain the subtle side effects that are going to happen and why we go
ahead and ack the interrupt source. This stuff is tricky to get
right.
Also, emperical tests have shown that doing a shutdown in attach to be
ineffectual, so remove it from there. Analysis of the code paths
shows that nearly identical writes to these registers happen in later
parts of the code. The hanging problem on thinkpads when we change
the interrupt routing type is something else.
Revision Changes Path
1.76 +17 -6 src/sys/pccard/pcic_pci.c
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