Searched hist:"5 cc5f19f884a75f0bf96b95b4292fcc81effd755" (Results 1 – 4 of 4) sorted by relevance
/openbmc/linux/arch/xtensa/kernel/ |
H A D | asm-offsets.c | diff 5cc5f19f884a75f0bf96b95b4292fcc81effd755 Fri May 13 10:11:14 CDT 2022 Max Filippov <jcmvbkbc@gmail.com> xtensa: improve call0 ABI probing
When call0 userspace ABI support by probing is enabled instructions that cause illegal instruction exception when PS.WOE is clear are retried with PS.WOE set before calling c-level exception handler. Record user pc at which PS.WOE was set in the fast exception handler and clear PS.WOE in the c-level exception handler if we get there from the same address.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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H A D | traps.c | diff 5cc5f19f884a75f0bf96b95b4292fcc81effd755 Fri May 13 10:11:14 CDT 2022 Max Filippov <jcmvbkbc@gmail.com> xtensa: improve call0 ABI probing
When call0 userspace ABI support by probing is enabled instructions that cause illegal instruction exception when PS.WOE is clear are retried with PS.WOE set before calling c-level exception handler. Record user pc at which PS.WOE was set in the fast exception handler and clear PS.WOE in the c-level exception handler if we get there from the same address.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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H A D | entry.S | diff 5cc5f19f884a75f0bf96b95b4292fcc81effd755 Fri May 13 10:11:14 CDT 2022 Max Filippov <jcmvbkbc@gmail.com> xtensa: improve call0 ABI probing
When call0 userspace ABI support by probing is enabled instructions that cause illegal instruction exception when PS.WOE is clear are retried with PS.WOE set before calling c-level exception handler. Record user pc at which PS.WOE was set in the fast exception handler and clear PS.WOE in the c-level exception handler if we get there from the same address.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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/openbmc/linux/arch/xtensa/include/asm/ |
H A D | thread_info.h | diff 5cc5f19f884a75f0bf96b95b4292fcc81effd755 Fri May 13 10:11:14 CDT 2022 Max Filippov <jcmvbkbc@gmail.com> xtensa: improve call0 ABI probing
When call0 userspace ABI support by probing is enabled instructions that cause illegal instruction exception when PS.WOE is clear are retried with PS.WOE set before calling c-level exception handler. Record user pc at which PS.WOE was set in the fast exception handler and clear PS.WOE in the c-level exception handler if we get there from the same address.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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