diff options
| author | Jimi Xenidis <jimix@pobox.com> | 2011-09-29 10:55:14 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-11-25 14:11:28 +1100 |
| commit | c3dcf53a3fcb01f1d98f6b0cf440bb781dbcbc34 (patch) | |
| tree | 8b0271a59dc103db39b3e8259419b9b549c89eae /arch/powerpc/platforms/Kconfig.cputype | |
| parent | fac26ad4f9cb794c9d1032f55f40a31cb55be09a (diff) | |
powerpc/icswx: Simple ACOP fault handler
This patch adds a fault handler that responds to illegal Coprocessor
types. Currently all CTs are treated and illegal. There are two ways
to report the fault back to the application. If the application used
the record form ("icswx.") then the architected "reject" is emulated.
If the application did not used the record form ("icswx") then it is
selectable by config whether the failure is silent (as architected) or
a SIGILL is generated.
In all cases pr_warn() is used to log the bad CT.
Signed-off-by: Jimi Xenidis <jimix@pobox.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms/Kconfig.cputype')
| -rw-r--r-- | arch/powerpc/platforms/Kconfig.cputype | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index 46d2a7c77dc0..836b44286b3e 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -257,9 +257,20 @@ config PPC_ICSWX_PID depends on PPC_ICSWX && POWER4 default y ---help--- - PID register in server is used explicitly for ICSWX. In + The PID register in server is used explicitly for ICSWX. In embedded systems PID managment is done by the system. +config PPC_ICSWX_USE_SIGILL + bool "Should a bad CT cause a SIGILL?" + depends on PPC_ICSWX + default n + ---help--- + Should a bad CT used for "non-record form ICSWX" cause an + illegal intruction signal or should it be silent as + architected. + + If in doubt, say N here. + config SPE bool "SPE Support" depends on E200 || (E500 && !PPC_E500MC) |