On Wed, Oct 09, 2019 at 12:51:37AM +0300, ivan.lazeev@xxxxxxxxx wrote: > From: Ivan Lazeev <ivan.lazeev@xxxxxxxxx> > > Bug link: https://bugzilla.kernel.org/show_bug.cgi?id=195657 > > cmd/rsp buffers are expected to be in the same ACPI region. > For Zen+ CPUs BIOS's might report two different regions, some of > them also report region sizes inconsistent with values from TPM > registers. > > Memory configuration on ASRock x470 ITX: > > db0a0000-dc59efff : Reserved > dc57e000-dc57efff : MSFT0101:00 > dc582000-dc582fff : MSFT0101:00 > > Work around the issue by storing ACPI regions declared for the > device in a fixed array and adding an array for pointers to > corresponding possibly allocated resources in crb_map_io function. > This data was previously held for a single resource > in struct crb_priv (iobase field) and local variable io_res in > crb_map_io function. ACPI resources array is used to find index of > corresponding region for each buffer and make the buffer size > consistent with region's length. Array of pointers to allocated > resources is used to map the region at most once. > > Signed-off-by: Ivan Lazeev <ivan.lazeev@xxxxxxxxx> > --- > Changes in v7: > - use terminator entry in iores_array You must have always the full changelog i.e. v7: ... v6: ... ... v2: ... If there is need for new iteration, please add it. However, I don't think there is. I'm getting Udoo Bolt this week that I can use for testing this. If it doesn't break anything, I can apply it. /Jarkko
