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hwmon: (k10temp) Use bitops

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Using bitops makes bit masks and shifts easier to read.

Tested-by: Brad Campbell <lists2009@fnarfbargle.com>
Tested-by: Bernhard Gebetsberger <bernhard.gebetsberger@gmx.at>
Tested-by: Holger Kiehl <holger.kiehl@dwd.de>
Tested-by: Michael Larabel <michael@phoronix.com>
Tested-by: Jonathan McDowell <noodles@earth.li>
Tested-by: Ken Moffat <zarniwhoop73@googlemail.com>
Tested-by: Darren Salt <devspam@moreofthesa.me.uk>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck 2018-04-29 08:39:24 -07:00
parent 7992db7cb9
commit a6d210da1a
1 changed files with 10 additions and 6 deletions
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16
drivers/hwmon/k10temp.c
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@ -5,6 +5,7 @@
* Copyright (c) 2009 Clemens Ladisch <clemens@ladisch.de>
*/
#include <linux/bitops.h>
#include <linux/err.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
@ -31,22 +32,22 @@ static DEFINE_MUTEX(nb_smu_ind_mutex);
#endif
/* CPUID function 0x80000001, ebx */
#define CPUID_PKGTYPE_MASK 0xf0000000
#define CPUID_PKGTYPE_MASK GENMASK(31, 28)
#define CPUID_PKGTYPE_F 0x00000000
#define CPUID_PKGTYPE_AM2R2_AM3 0x10000000
/* DRAM controller (PCI function 2) */
#define REG_DCT0_CONFIG_HIGH 0x094
#define DDR3_MODE 0x00000100
#define DDR3_MODE BIT(8)
/* miscellaneous (PCI function 3) */
#define REG_HARDWARE_THERMAL_CONTROL 0x64
#define HTC_ENABLE 0x00000001
#define HTC_ENABLE BIT(0)
#define REG_REPORTED_TEMPERATURE 0xa4
#define REG_NORTHBRIDGE_CAPABILITIES 0xe8
#define NB_CAP_HTC 0x00000400
#define NB_CAP_HTC BIT(10)
/*
* For F15h M60h and M70h, REG_HARDWARE_THERMAL_CONTROL
@ -60,6 +61,9 @@ static DEFINE_MUTEX(nb_smu_ind_mutex);
/* F17h M01h Access througn SMN */
#define F17H_M01H_REPORTED_TEMP_CTRL_OFFSET 0x00059800
#define CUR_TEMP_SHIFT 21
#define CUR_TEMP_RANGE_SEL_MASK BIT(19)
struct k10temp_data {
struct pci_dev *pdev;
void (*read_htcreg)(struct pci_dev *pdev, u32 *regval);
@ -129,7 +133,7 @@ static unsigned int get_raw_temp(struct k10temp_data *data)
u32 regval;
data->read_tempreg(data->pdev, &regval);
temp = (regval >> 21) * 125;
temp = (regval >> CUR_TEMP_SHIFT) * 125;
if (regval & data->temp_adjust_mask)
temp -= 49000;
return temp;
@ -312,7 +316,7 @@ static int k10temp_probe(struct pci_dev *pdev,
data->read_htcreg = read_htcreg_nb_f15;
data->read_tempreg = read_tempreg_nb_f15;
} else if (boot_cpu_data.x86 == 0x17 || boot_cpu_data.x86 == 0x18) {
data->temp_adjust_mask = 0x80000;
data->temp_adjust_mask = CUR_TEMP_RANGE_SEL_MASK;
data->read_tempreg = read_tempreg_nb_f17;
data->show_tdie = true;
} else {