add scripts/bhs-power-mode.ps1

Change-Id: Ica482610f7107aad538224e3f12f0c830e1d1af8

Author: rdementi

scripts/bhs-power-mode.ps1

@@ -0,0 +1,132 @@
+Write-Output "Intel(r) Performance Counter Monitor"
+Write-Output "Birch Stream Power Mode Utility"
+Write-Output ""
+
+Write-Output " Options:"
+Write-Output " --default                : set default power mode"
+Write-Output " --latency-optimized-mode : set latency optimized mode"
+Write-Output ""
+
+# Run the pcm-tpmi command to determine I/O and compute dies
+$output = pcm-tpmi 2 0x10 -d -b 26:26
+
+# Parse the output to build lists of I/O and compute dies
+$io_dies = @()
+$compute_dies = @()
+$die_types = @{}
+
+$output -split "`n" | ForEach-Object {
+    $line = $_
+    if ($line -match "instance 0") {
+        $die = $line -match 'entry (\d+)' | Out-Null; $matches[1]
+        if ($line -match "value 1") {
+            $die_types[$die] = "IO"
+            $io_dies += $die
+        } elseif ($line -match "value 0") {
+            $die_types[$die] = "Compute"
+            $compute_dies += $die
+        }
+    }
+}
+
+if ($args[0] -eq "--default") {
+    Write-Output "Setting default mode..."
+
+    foreach ($die in $io_dies) {
+        # EFFICIENCY_LATENCY_CTRL_RATIO (Uncore IO)
+        pcm-tpmi 2 0x18 -d -e $die -b 28:22 -w 8 
+
+        # EFFICIENCY_LATENCY_CTRL_LOW_THRESHOLD (Uncore IO)
+        pcm-tpmi 2 0x18 -d -e $die -b 38:32 -w 13
+
+        # EFFICIENCY_LATENCY_CTRL_HIGH_THRESHOLD (Uncore IO)
+        pcm-tpmi 2 0x18 -d -e $die -b 46:40 -w 120
+
+        # EFFICIENCY_LATENCY_CTRL_HIGH_THRESHOLD_ENABLE (Uncore IO)
+        pcm-tpmi 2 0x18 -d -e $die -b 39:39 -w 1
+    }
+
+    foreach ($die in $compute_dies) {
+        # EFFICIENCY_LATENCY_CTRL_RATIO (Uncore Compute)
+        pcm-tpmi 2 0x18 -d -e $die -b 28:22 -w 12
+    }
+}
+
+if ($args[0] -eq "--latency-optimized-mode") {
+    Write-Output "Setting latency optimized mode..."
+
+    foreach ($die in $io_dies) {
+        # EFFICIENCY_LATENCY_CTRL_RATIO (Uncore IO)
+        pcm-tpmi 2 0x18 -d -e $die -b 28:22 -w 0
+
+        # EFFICIENCY_LATENCY_CTRL_LOW_THRESHOLD (Uncore IO)
+        pcm-tpmi 2 0x18 -d -e $die -b 38:32 -w 0
+
+        # EFFICIENCY_LATENCY_CTRL_HIGH_THRESHOLD (Uncore IO)
+        pcm-tpmi 2 0x18 -d -e $die -b 46:40 -w 0
+
+        # EFFICIENCY_LATENCY_CTRL_HIGH_THRESHOLD_ENABLE (Uncore IO)
+        pcm-tpmi 2 0x18 -d -e $die -b 39:39 -w 1
+    }
+
+    foreach ($die in $compute_dies) {
+        # EFFICIENCY_LATENCY_CTRL_RATIO (Uncore Compute)
+        pcm-tpmi 2 0x18 -d -e $die -b 28:22 -w 0
+    }
+}
+
+Write-Output "Dumping TPMI Power control register states..."
+Write-Output ""
+
+# Function to extract and calculate metrics from the value
+function ExtractAndPrintMetrics {
+    param (
+        [int]$value,
+        [int]$socket_id,
+        [int]$die
+    )
+
+    $die_type = $die_types[$die]
+
+    # Extract bits and calculate metrics
+    $min_ratio = ($value -shr 15) -band 0x7F
+    $max_ratio = ($value -shr 8) -band 0x7F
+    $eff_latency_ctrl_ratio = ($value -shr 22) -band 0x7F
+    $eff_latency_ctrl_low_threshold = ($value -shr 32) -band 0x7F
+    $eff_latency_ctrl_high_threshold = ($value -shr 40) -band 0x7F
+    $eff_latency_ctrl_high_threshold_enable = ($value -shr 39) -band 0x1
+
+    # Convert to MHz or percentage
+    $min_ratio = $min_ratio * 100
+    $max_ratio = $max_ratio * 100
+    $eff_latency_ctrl_ratio = $eff_latency_ctrl_ratio * 100
+    $eff_latency_ctrl_low_threshold = ($eff_latency_ctrl_low_threshold * 100) / 127
+    $eff_latency_ctrl_high_threshold = ($eff_latency_ctrl_high_threshold * 100) / 127
+
+    # Print metrics
+    Write-Output "Socket ID: $socket_id, Die: $die, Type: $die_type"
+    Write-Output "MIN_RATIO: $min_ratio MHz"
+    Write-Output "MAX_RATIO: $max_ratio MHz"
+    Write-Output "EFFICIENCY_LATENCY_CTRL_RATIO: $eff_latency_ctrl_ratio MHz"
+    if ($die_type -eq "IO") {
+        Write-Output "EFFICIENCY_LATENCY_CTRL_LOW_THRESHOLD: $eff_latency_ctrl_low_threshold%"
+        Write-Output "EFFICIENCY_LATENCY_CTRL_HIGH_THRESHOLD: $eff_latency_ctrl_high_threshold%"
+        Write-Output "EFFICIENCY_LATENCY_CTRL_HIGH_THRESHOLD_ENABLE: $eff_latency_ctrl_high_threshold_enable"
+    }
+    Write-Output ""
+}
+
+# Iterate over all dies and run pcm-tpmi for each to get the metrics
+foreach ($die in $die_types.Keys) {
+    $output = pcm-tpmi 2 0x18 -d -e $die
+
+    # Parse the output and extract metrics for each socket
+    $output -split "`n" | ForEach-Object {
+        $line = $_
+        if ($line -match "Read value") {
+            $value = $line -match 'value (\d+)' | Out-Null; $matches[1]
+            $socket_id = $line -match 'instance (\d+)' | Out-Null; $matches[1]
+            ExtractAndPrintMetrics -value $value -socket_id $socket_id -die $die
+        }
+    }
+}