Commit 5663785ae02f for kernel

commit 5663785ae02f66acf64f285a40e35abd21b8a7b2
Author: Kaushlendra Kumar <kaushlendra.kumar@intel.com>
Date:   Thu May 22 14:19:46 2025 +0530

    tools/power turbostat: Add Android support for MSR device handling

    It uses /dev/msrN device paths on Android instead of /dev/cpu/N/msr,
    updates error messages and permission checks to reflect the Android
    device path, and wraps platform-specific code with #if defined(ANDROID)
    to ensure correct behavior on both Android and non-Android systems.
    These changes improve compatibility and usability of turbostat on
    Android devices.

    Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com>
    Signed-off-by: Len Brown <len.brown@intel.com>

diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 0170d3cc6819..3b418cae8812 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -2140,13 +2140,20 @@ int get_msr_fd(int cpu)

 	if (fd)
 		return fd;
-
+#if defined(ANDROID)
+	sprintf(pathname, "/dev/msr%d", cpu);
+#else
 	sprintf(pathname, "/dev/cpu/%d/msr", cpu);
+#endif
 	fd = open(pathname, O_RDONLY);
 	if (fd < 0)
+#if defined(ANDROID)
+		err(-1, "%s open failed, try chown or chmod +r /dev/msr*, "
+		    "or run with --no-msr, or run as root", pathname);
+#else
 		err(-1, "%s open failed, try chown or chmod +r /dev/cpu/*/msr, "
 		    "or run with --no-msr, or run as root", pathname);
-
+#endif
 	fd_percpu[cpu] = fd;

 	return fd;
@@ -6476,8 +6483,11 @@ void check_dev_msr()

 	if (no_msr)
 		return;
-
+#if defined(ANDROID)
+	sprintf(pathname, "/dev/msr%d", base_cpu);
+#else
 	sprintf(pathname, "/dev/cpu/%d/msr", base_cpu);
+#endif
 	if (stat(pathname, &sb))
 		if (system("/sbin/modprobe msr > /dev/null 2>&1"))
 			no_msr = 1;
@@ -6527,7 +6537,11 @@ void check_msr_permission(void)
 	failed += check_for_cap_sys_rawio();

 	/* test file permissions */
+#if defined(ANDROID)
+	sprintf(pathname, "/dev/msr%d", base_cpu);
+#else
 	sprintf(pathname, "/dev/cpu/%d/msr", base_cpu);
+#endif
 	if (euidaccess(pathname, R_OK)) {
 		failed++;
 	}