From af1a266670d040d2f4083ff309d732d648afba2a Mon Sep 17 00:00:00 2001
From: Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com>
Date: Tue, 10 Oct 2023 14:33:42 +0000
Subject: Add submodule dependency files
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
---
roms/skiboot/external/npu/run_procedure.sh | 109 +++++++++++++++++++++++++++++
1 file changed, 109 insertions(+)
create mode 100755 roms/skiboot/external/npu/run_procedure.sh
(limited to 'roms/skiboot/external/npu/run_procedure.sh')
diff --git a/roms/skiboot/external/npu/run_procedure.sh b/roms/skiboot/external/npu/run_procedure.sh
new file mode 100755
index 000000000..e5df327e0
--- /dev/null
+++ b/roms/skiboot/external/npu/run_procedure.sh
@@ -0,0 +1,109 @@
+#!/bin/bash
+# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+#
+# Run an NPU Hardware procedure
+#
+# Copyright 2016 IBM Corp.
+
+
+function usage() {
+ echo -e "$0: run a NPU hardware procedure (requires root)\n"
+ echo -e "Usage: $0 <PCI bdfn> <procedure number>\n"
+ echo -e "Example: $0 0008:00:01.1 1"
+ echo -e "Procedures are documented in skiboot/doc/nvlink.rst"
+}
+
+function check_root() {
+ if [ "$(id -u)" != "0" ]; then
+ echo -e "Error: $0 must be run as root\n" 1>&2
+ exit 1
+ fi
+}
+
+function check_args() {
+ if [ "$#" -eq 0 ]; then
+ usage
+ exit 1
+ fi
+
+ if [ "$#" -gt 2 ]; then
+ echo -e "Error: too many arguments\n" 1>&2
+ usage
+ exit 1
+ fi
+
+ if [[ "$1" == "-h" || "$1" == "--help" ]]; then
+ usage
+ exit 0
+ fi
+
+ if ! [ "$2" -eq "$2" ] 2>/dev/null; then
+ echo -e "Procedure must be a decimal number\n" 1>&2
+ usage
+ exit 1
+ fi
+
+ if [[ "$2" -lt "0" || "$2" -gt "12" ]]; then
+ echo -e "Invalid procedure number\n" 1>&2
+ usage
+ exit 2
+ fi
+
+ pci_check=$(lspci -s $1)
+ if [[ $? -ne 0 || $pci_check == "" ]]; then
+ echo -e "Invalid PCI device\n" 1>&2
+ usage
+ exit 2
+ fi
+}
+
+function run_procedure() {
+ # Convert procedure number into hex
+ procedure=$(echo "obase=16; $2" | bc)
+
+ # Check the status register to make sure we can run a procedure
+ status=$(setpci -s $1 0x84.L)
+ if [[ $status == 8000000* ]]; then
+ echo "Procedure in progress, try again." 1>&2
+ echo "If that doesn't work, use procedure 0 to abort." 1>&2
+ exit 3
+ fi
+
+ # Start the procedure
+ setpci -s $1 0x88.L=0x0000000$procedure >/dev/null
+ if [ $? -ne 0 ]; then
+ echo "Control register write failed!" 1>&2
+ exit 3
+ fi
+
+ iterations=1
+ while [[ $(setpci -s $1 0x84.L) == 8000000* ]]; do
+ ((iterations++))
+ done
+
+ # Check again, procedure should be finished
+ status=$(setpci -s $1 0x84.L)
+
+ echo "Done in $iterations iteration(s)!"
+
+ if [[ $status == 40000000 ]]; then
+ echo "Procedure completed successfully."
+ exit 0
+ elif [[ $status == 40000001 ]]; then
+ echo "Transient failure, try again." 1>&2
+ exit 4
+ elif [[ $status == 40000002 ]]; then
+ echo "Permanent failure, reboot required?" 1>&2
+ exit 5
+ elif [[ $status == 40000003 ]]; then
+ echo "Procedure aborted." 1>&2
+ exit 6
+ elif [[ $status == 40000004 ]]; then
+ echo "Unsupported procedure." 1>&2
+ exit 7
+ fi
+}
+
+check_args "$@"
+check_root
+run_procedure "$1" "$2"
--
cgit