| commit | d6ad39bc53521275d14fde86bfb94d9b2ddb7a08 | |
| author | Jeremy Kerr <jk@ozlabs.org> | |
| Thu, 20 Dec 2007 07:39:59 +0000 (20 16:39 +0900) | ||
| committer | Paul Mackerras <paulus@samba.org> | |
| Fri, 21 Dec 2007 08:46:20 +0000 (21 19:46 +1100) | ||
| tree | 07dcc592b343395cb7fbfb3053aa21103fb94352 | treesnapshot (tar.gz zip) |
| parent | 8af30675c3e7b945bbaf6f57b724f246e56eb209 | commitdiff |
[POWERPC] spufs: rework class 0 and 1 interrupt handling
Based on original patches from
Arnd Bergmann <arnd.bergman@de.ibm.com>; and
Luke Browning <lukebr@linux.vnet.ibm.com>
Currently, spu contexts need to be loaded to the SPU in order to take
class 0 and class 1 exceptions.
This change makes the actual interrupt-handlers much simpler (ie,
set the exception information in the context save area), and defers the
handling code to the spufs_handle_class[01] functions, called from
spufs_run_spu.
This should improve the concurrency of the spu scheduling leading to
greater SPU utilization when SPUs are overcommited.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Based on original patches from
Arnd Bergmann <arnd.bergman@de.ibm.com>; and
Luke Browning <lukebr@linux.vnet.ibm.com>
Currently, spu contexts need to be loaded to the SPU in order to take
class 0 and class 1 exceptions.
This change makes the actual interrupt-handlers much simpler (ie,
set the exception information in the context save area), and defers the
handling code to the spufs_handle_class[01] functions, called from
spufs_run_spu.
This should improve the concurrency of the spu scheduling leading to
greater SPU utilization when SPUs are overcommited.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>