linux-kernel - [patch V4 08/41] hwmon: (fam15h_power) Use topology_core

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Message-ID: <20230814085112.506988471@linutronix.de>
Date:   Mon, 14 Aug 2023 10:53:46 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     x86@...nel.org, Tom Lendacky <thomas.lendacky@....com>,
        Andrew Cooper <andrew.cooper3@...rix.com>,
        Arjan van de Ven <arjan@...ux.intel.com>,
        Huang Rui <ray.huang@....com>, Juergen Gross <jgross@...e.com>,
        Dimitri Sivanich <dimitri.sivanich@....com>,
        Michael Kelley <mikelley@...rosoft.com>,
        Wei Liu <wei.liu@...nel.org>, Pu Wen <puwen@...on.cn>,
        Qiuxu Zhuo <qiuxu.zhuo@...el.com>,
        Sohil Mehta <sohil.mehta@...el.com>,
        Guenter Roeck <linux@...ck-us.net>
Subject: [patch V4 08/41] hwmon: (fam15h_power) Use topology_core_id()

Use the provided topology helper function instead of fiddling in cpu_data.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Tested-by: Juergen Gross <jgross@...e.com>
Tested-by: Sohil Mehta <sohil.mehta@...el.com>
Tested-by: Michael Kelley <mikelley@...rosoft.com>
Acked-by: Guenter Roeck <linux@...ck-us.net>

---
 drivers/hwmon/fam15h_power.c |    7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

--- a/drivers/hwmon/fam15h_power.c
+++ b/drivers/hwmon/fam15h_power.c
@@ -17,6 +17,7 @@
 #include <linux/cpumask.h>
 #include <linux/time.h>
 #include <linux/sched.h>
+#include <linux/topology.h>
 #include <asm/processor.h>
 #include <asm/msr.h>
 
@@ -134,15 +135,13 @@ static DEVICE_ATTR_RO(power1_crit);
 static void do_read_registers_on_cu(void *_data)
 {
 	struct fam15h_power_data *data = _data;
-	int cpu, cu;
-
-	cpu = smp_processor_id();
+	int cu;
 
 	/*
 	 * With the new x86 topology modelling, cpu core id actually
 	 * is compute unit id.
 	 */
-	cu = cpu_data(cpu).cpu_core_id;
+	cu = topology_core_id(smp_processor_id());
 
 	rdmsrl_safe(MSR_F15H_CU_PWR_ACCUMULATOR, &data->cu_acc_power[cu]);
 	rdmsrl_safe(MSR_F15H_PTSC, &data->cpu_sw_pwr_ptsc[cu]);