https://bugzilla.kernel.org/show_bug.cgi?id=62181
--- Comment #4 from Lv Zheng <[email protected]> --- Created attachment 109761 --> https://bugzilla.kernel.org/attachment.cgi?id=109761&action=edit disassembled FADT The error log relates to: if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_MSI) { pr_info("ACPI FADT declares the system doesn't support MSI, so disable it\n"); } >From the attached disassembled FADT, we can see: [06Dh 0109 2] Boot Flags (decoded below) : 0013 Legacy Devices Supported (V2) : 1 8042 Present on ports 60/64 (V2) : 1 VGA Not Present (V4) : 0 MSI Not Supported (V4) : 0 PCIe ASPM Not Supported (V4) : 1 <- So no ASPM CMOS RTC Not Present (V5) : 0 It's defined in Table 5-36 Fixed ACPI Description Table Boot Architecture Flags of ACPI specification. PCIe ASPM Controls bit-length=1 bit-offset=4: If set, indicates to OSPM that it must not enable OSPM ASPM control on this platform. Linux didn't define a wrong value for it: #define ACPI_FADT_NO_ASPM (1<<4) /* 04: [V4] PCIe ASPM control must not be enabled */ So you may try harder to find a way to enable it in the BIOS setups. -- You are receiving this mail because: You are watching the assignee of the bug. ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60133471&iu=/4140/ostg.clktrk _______________________________________________ acpi-bugzilla mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
