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powerpc: Dynamically calculate the dabrx based on kernel/user/hypervisor

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Currently we mark the DABRX to interrupt on all matches
(hypervisor/kernel/user and then filter in software.  We can be a lot
smarter now that we can set the DABRX dynamically.

This sets the DABRX based on the flags passed by the user.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Michael Neuling 2012-09-06 21:24:57 +00:00 • committed by Benjamin Herrenschmidt
parent 4474ef055c
commit cd14457304
3 changed files with 13 additions and 5 deletions
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1
arch/powerpc/include/asm/hw_breakpoint.h
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@ -28,6 +28,7 @@
struct arch_hw_breakpoint {
unsigned long address;
unsigned long dabrx;
int type;
u8 len; /* length of the target data symbol */
bool extraneous_interrupt;