On Wed, 18 Jun, at 10:41:47AM, Mark Salter wrote: > On Wed, 2014-06-18 at 09:09 -0500, Rob Herring wrote: > > On Tue, Jun 17, 2014 at 11:45 AM, Mark Salter <msalter@xxxxxxxxxx> wrote: > > > Add handlers for arm_pm_resestart and pm_power_off which use EFI > > > > typo. > > > > > runtime services ResetSystem call to perform the functions. These > > > handlers are only installed if no handler currently exists. This > > > allows PSCI to take priority over EFI for these functions. > > > > > > Signed-off-by: Mark Salter <msalter@xxxxxxxxxx> > > > --- > > > arch/arm64/kernel/efi.c | 40 ++++++++++++++++++++++++++++++++++++++++ > > > > Where's the arm32 version? Surely this could be shared with all > > arches. pm_power_off is at least architecturally independent. We > > should do the same for restart/reboot. I'm not saying do that now, but > > at least put it in the right place for that to happen. > > > > Rob > > Good point. So the right place would be drivers/firmware/efi I think. > Add a CONFIG_EFI_RESET with default off. I suppose we could also > go ahead and s/arm_pm_restart/pm_restart/ kernel-wide or have an > ifdef in the code (or depends on ARM64 || ARM in Kconfig) until we > do so. > > [Matt Fleming CC'd] Heh, this is timely. I wrote some patches last week to use EfiResetSystem() for ACPI Hardware Reduced platforms, http://git.kernel.org/cgit/linux/kernel/git/mfleming/efi.git/log/?h=efi/reboot so it would definitely be good if we could try and solve both of our problems simultaneously. Let me post that patch series to kickoff the discussion. -- Matt Fleming, Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
