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The armada_370_xp_cpu_resume() until now was used only as the function called by the SoC when returning from a deep idle state (as used in cpuidle, or when the CPU is brought offline using CPU hotplug). However, it is now also used when exiting the suspend to RAM state. In this case, it is the bootloader that calls back into this function, with the MMU left enabled by the BootROM. Having the MMU enabled when entering this function confuses the kerrnel because we are not using the kernel page tables at this point, but in other mvebu functions we use the information on whether the MMU is enabled or not to find out whether we should talk to the coherency fabric using a physical address or a virtual address. To fix that, we simply disable the MMU when entering this function, so that the kernel is in an expected situation. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Link: https://lkml.kernel.org/r/1416585613-2113-13-git-send-email-thomas.petazzoni@free-electrons.com Signed-off-by: Jason Cooper <jason@lakedaemon.net> |
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| .. | ||
| include/mach | ||
| armada-370-xp.h | ||
| board-v7.c | ||
| board.h | ||
| coherency_ll.S | ||
| coherency.c | ||
| coherency.h | ||
| common.h | ||
| cpu-reset.c | ||
| dove.c | ||
| headsmp-a9.S | ||
| headsmp.S | ||
| Kconfig | ||
| kirkwood-pm.c | ||
| kirkwood-pm.h | ||
| kirkwood.c | ||
| kirkwood.h | ||
| Makefile | ||
| mvebu-soc-id.c | ||
| mvebu-soc-id.h | ||
| netxbig.c | ||
| platsmp-a9.c | ||
| platsmp.c | ||
| pm-board.c | ||
| pm.c | ||
| pmsu_ll.S | ||
| pmsu.c | ||
| pmsu.h | ||
| system-controller.c | ||