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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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3dc196eae1
Fix the hbm power gating state machine so it will wait till it receives confirmation interrupt for the PG_ISOLATION_EXIT message. In process of the suspend flow the devices first have to exit from the power gating state (runtime pm resume). If we do not handle the confirmation interrupt after sending PG_ISOLATION_EXIT message, we may receive it already after the suspend flow has changed the device state and interrupt will be interpreted as a spurious event, consequently link reset will be invoked which will prevent the device from completing the suspend flow kernel: [6603] mei_reset:136: mei_me 0000:00:16.0: powering down: end of reset kernel: [476] mei_me_irq_thread_handler:643: mei_me 0000:00:16.0: function called after ISR to handle the interrupt processing. kernel: mei_me 0000:00:16.0: FW not ready: resetting Cc: <stable@vger.kernel.org> #3.18+ Cc: Gabriele Mazzotta <gabriele.mzt@gmail.com> Link: https://bugzilla.kernel.org/show_bug.cgi?id=86241 Link: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=770397 Tested-by: Gabriele Mazzotta <gabriele.mzt@gmail.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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| .. | ||
| amthif.c | ||
| bus.c | ||
| client.c | ||
| client.h | ||
| debugfs.c | ||
| hbm.c | ||
| hbm.h | ||
| hw-me-regs.h | ||
| hw-me.c | ||
| hw-me.h | ||
| hw-txe-regs.h | ||
| hw-txe.c | ||
| hw-txe.h | ||
| hw.h | ||
| init.c | ||
| interrupt.c | ||
| Kconfig | ||
| main.c | ||
| Makefile | ||
| mei_dev.h | ||
| mei-trace.c | ||
| mei-trace.h | ||
| nfc.c | ||
| pci-me.c | ||
| pci-txe.c | ||
| wd.c | ||