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This patch gets rid of dealing with intermediate flag for start method and use start method value from ACPI table directly. For ARM64, the locality is handled by Trust Zone in FW. The layout does not have crb_regs_head. It is hitting the following line. dev_warn(dev, FW_BUG "Bad ACPI memory layout"); Current code excludes CRB_FL_ACPI_START for this check. Now since ARM64 support for TPM CRB is added, CRB_FL_CRB_SMC_START should also be excluded from this check. For goIdle and cmdReady where code was excluding CRB_FL_ACPI_START only (do nothing for ACPI start method), CRB_FL_CRB_SMC_START was also excluded as ARM64 SMC start method does not have TPM_CRB_CTRL_REQ. However with special PPT workaround requiring CRB_FL_CRB_START to be set in addition to CRB_FL_ACPI_START and the addition flag of SMC start method CRB_FL_CRB_SMC_START, the code has become difficult to maintain and undrestand. It is better to make code deal with start method value from ACPI table directly. Signed-off-by: Jiandi An <anjiandi@codeaurora.org> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> |
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.