powerpc/watchpoint: Fix DAWR exception for CACHEOP

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'ea' returned by analyse_instr() needs to be aligned down to cache
block size for CACHEOP instructions. analyse_instr() does not set
size for CACHEOP, thus size also needs to be calculated manually.

Fixes: 27985b2a64 ("powerpc/watchpoint: Don't ignore extraneous exceptions blindly")
Fixes: 74c6881019 ("powerpc/watchpoint: Prepare handler to handle more than one watchpoint")
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200723090813.303838-4-ravi.bangoria@linux.ibm.com

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Ravi Bangoria 2020-07-23 14:38:06 +05:30 • committed by Michael Ellerman

parent f6780ce619

commit f3c832f135

1 changed files with 20 additions and 1 deletions

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arch/powerpc/kernel/hw_breakpoint.c

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