firmware: xilinx: add support for new SMC call format

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Added zynqmp_pm_invoke_fw_fn() to use new SMC format in which
lower 12 bits of SMC id are fixed and firmware header is moved to
subsequent SMC arguments. The new SMC format supports full request and
response buffers.

Added zynqmp_pm_get_sip_svc_version() to get SiP SVC version
number to check if TF-A is newer or older and use the SMC format
accordingly to handle backward compatibility.

Used new SMC format for PM_QUERY_DATA API as more response values are
required in it.

Signed-off-by: Ronak Jain <ronak.jain@amd.com>
Signed-off-by: Jay Buddhabhatti <jay.buddhabhatti@amd.com>
Link: https://lore.kernel.org/r/20240920055501.2658642-1-ronak.jain@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>

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Ronak Jain 2024-09-19 22:55:01 -07:00 • committed by Michal Simek

parent e8415a8aec

commit 92fb71333d

2 changed files with 157 additions and 6 deletions

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137

drivers/firmware/xilinx/zynqmp.c

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26

include/linux/firmware/xlnx-zynqmp.h

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