Dear coreboot folks,
searching for ACPI in the output of `dmesg` I noticed the following message.
$ uname -v #1 SMP Debian 3.2.35-2 $ dmesg | grep -i acpi [ 0.154063] ACPI: BIOS offers _BFS [ 0.154067] ACPI: If "acpi.bfs=1" improves resume, please notify linux-acpi@vger.kernel.org
Doing
$ git grep _GTA
reveals that it is only implemented in the DSDT of AMD based boards. As resuming currently does not work on the ASRock E350M1 [1], I cannot test that.
Was this ever tested by adding `acpi.bfs=1` to the Linux kernel command line and what was the outcome? A test on AMD Persimmon would be very interesting.
It looks like support for this has been removed in the meantime though
commit 3f6f49c7854c9294119437a82c5b35be78f9cea6 Author: Len Brown len.brown@intel.com Date: Thu Jul 26 20:08:54 2012 -0400
ACPI: delete _GTS/_BFS support
since Linux Git tag v3.6-rc2.
Thanks,
Paul
[1] http://www.coreboot.org/ASRock_E350M1 [2] https://patchwork.kernel.org/patch/1246671/