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This will internally pretend the timebase is running 1000 times
slower, which reduces some otherwise really terrible delays in
some simulators.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Michael Neuling <mikey@neuling.org>
[stewart@linux.vnet.ibm.com: move cfam_chipid cleanup into own patch]
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
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Recent HostBoot & SBE firmware provide a HW timer facility that can
be used to implement OPAL timers and thus limit the reliance on the
Linux heartbeat.
This implements support for it. The side effect is that i2c from Centaurs
is now usable.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[stewart@linux.vnet.ibm.com: fix run-timer unit test]
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
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The caller usually has it and it avoids additional mftb() which
can be expensive.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[stewart@linux.vnet.ibm.com: fix run-timer unit test]
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
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Commit b54d1a8 broke timer test case.
core/test/run-timer.c: In function ‘main’:
core/test/run-timer.c:52:3: error: too few arguments to function ‘check_timers’
check_timers();
^
In file included from core/test/run-timer.c:16:0:
core/test/../timer.c:201:6: note: declared here
void check_timers(bool from_interrupt)
^
make: *** [core/test/run-timer] Error 1
This patch fixes above compilation issue.
Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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For now running off the event pollers, that will improve once we get
delayed interrupts from the SLW
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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