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272461 |
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02-Oct-2014 |
gjb |
Copy stable/10@r272459 to releng/10.1 as part of the 10.1-RELEASE process.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation |
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256281 |
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10-Oct-2013 |
gjb |
Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation
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202097 |
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11-Jan-2010 |
marcel |
Use io(4) for I/O port access on ia64, rather than through sysarch(2). I/O port access is implemented on Itanium by reading and writing to a special region in memory. To hide details and avoid misaligned memory accesses, a process did I/O port reads and writes by making a MD system call. There's one fatal problem with this approach: unprivileged access was not being prevented. /dev/io serves that purpose on amd64/i386, so employ it on ia64 as well. Use an ioctl for doing the actual I/O and remove the sysarch(2) interface.
Backward compatibility is not being considered. The sysarch(2) approach was added to support X11, but support for FreeBSD/ia64 was never fully implemented in X11. Thus, nothing gets broken that didn't need more work to begin with.
MFC after: 1 week
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124296 |
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09-Jan-2004 |
nectar |
Provide sysarch(2) prototypes in the MD sysarch.h headers. While I'm at it, use the ANSI C generic pointer type for the second argument, thus matching the documentation.
Remove the now extraneous (and now conflicting) function declarations in various libc sources. Remove now unnecessary casts.
Reviewed by: bde
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121622 |
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27-Oct-2003 |
marcel |
The previous commit removed both clause 3 and clause 4 from the UCB license. Only clause 3 has been revoked. Restore the fourth clause as clause 3.
Pointed out by: das@
Remove my name as a copyright holder since I don't use a BSD license compatible or comparable to the UCB license. I choose not to add a complete second license for my work for aesthetic reasons, nor to replace the UCB license on grounds of rewriting more than 90% of the source files. The rewrite can also be seen as an enhancement and since the files were practically empty, it's rather trivial to have changed 90% of the files.
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121600 |
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27-Oct-2003 |
marcel |
Add support for userland to access I/O port space. This is primarily added for XFree86. There are 2 reasons for doing this with sysarch(): 1. The memory mapped I/O space is not at a fixed physical address. An application has to use some interface to get the base address. It gets worse if the machine has multiple memory mapped I/O spaces. 2. Access to the memory mapped I/O space needs to happen through a translation that is flagged as uncachable. There's no interface that allows a process to do uncached memory I/O, other than though /dev/mem (possibly).
So, until we either disallow direct access to I/O or bus space from userland or have a better way of doing this, sysarch() has the least negative impact on existing interfaces.
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66458 |
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29-Sep-2000 |
dfr |
This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
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