diff options
| author | Guenter Roeck <linux@roeck-us.net> | 2018-04-29 08:39:24 -0700 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2020-01-23 13:15:11 -0800 |
| commit | a6d210da1a01cb5c3fd4d2dd7b5920642f66677c (patch) | |
| tree | ccae64da806fd31339bf5104a2ca49ed221658ad /drivers/hwmon | |
| parent | 7992db7cb9d133bc6d3d1731fcd72fe2bec944d4 (diff) | |
hwmon: (k10temp) Use bitops
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>
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/k10temp.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c index 5c1dddde193c..8807d7da68db 100644 --- a/drivers/hwmon/k10temp.c +++ b/drivers/hwmon/k10temp.c @@ -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, ®val); - 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 { |