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ACPICA drops the interpreter lock while AML waits, for example around EC accesses, so two methods can run interleaved. Some firmware relies on methods not interleaving, for instance by switching an EC page selector without taking the AML mutex that the other users of that page hold. Add acpi_evaluate_object_exclusive(), acpi_evaluate_integer_exclusive() and acpi_execute_simple_method_exclusive() which serialize the evaluation under a global mutex, for callers that are known to be affected. Suggested-by: Rafael J. Wysocki <rafael@kernel.org> Link: https://lore.kernel.org/all/CAJZ5v0gS4agVUkCO6M=VW4Wi2y1-s+k23bpzmX9aAZ0Rsv4z9Q@mail.gmail.com/ Signed-off-by: Ali Ahmet Memiş <aliamemis@disroot.org> Reviewed-by: Rong Zhang <i@rong.moe> Link: https://patch.msgid.link/20261018122220.678822-2-aliamemis@disroot.org Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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| .. | ||
| platform | ||
| acbuffer.h | ||
| acconfig.h | ||
| acexcep.h | ||
| acnames.h | ||
| acoutput.h | ||
| acpi_bus.h | ||
| acpi_drivers.h | ||
| acpi_io.h | ||
| acpi_lpat.h | ||
| acpi_numa.h | ||
| acpi.h | ||
| acpiosxf.h | ||
| acpixf.h | ||
| acrestyp.h | ||
| actbl.h | ||
| actbl1.h | ||
| actbl2.h | ||
| actbl3.h | ||
| actypes.h | ||
| acuuid.h | ||
| apei.h | ||
| battery.h | ||
| button.h | ||
| cppc_acpi.h | ||
| ghes.h | ||
| hed.h | ||
| nfit.h | ||
| nhlt.h | ||
| pcc.h | ||
| proc_cap_intel.h | ||
| processor.h | ||
| reboot.h | ||
| video.h | ||