forked from KolibriOS/kolibrios
7fed66e496
- fixed crash when there was no device. git-svn-id: svn://kolibrios.org@9144 a494cfbc-eb01-0410-851d-a64ba20cac60
580 lines
15 KiB
C
580 lines
15 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* k10temp.c - AMD Family 10h/11h/12h/14h/15h/16h/17h
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* processor hardware monitoring
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*
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* Copyright (c) 2009 Clemens Ladisch <clemens@ladisch.de>
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* Copyright (c) 2020 Guenter Roeck <linux@roeck-us.net>
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*
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* Implementation notes:
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* - CCD register address information as well as the calculation to
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* convert raw register values is from https://github.com/ocerman/zenpower.
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* The information is not confirmed from chip datasheets, but experiments
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* suggest that it provides reasonable temperature values.
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*/
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/* Ported for Kolibri OS by turbocat (Maxim Logaeav). 2021 */
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/* Thanks: dunkaist, punk_joker, doczom. */
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#include <ddk.h>
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#include <syscall.h>
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#include <linux/bitops.h>
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#include <linux/err.h>
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#include <linux/hwmon.h>
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#include <linux/init.h>
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#include <linux/pci.h>
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#include <linux/pci_ids.h>
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#include <asm/amd_nb.h>
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#include <asm/processor.h>
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struct cpuinfo_x86 boot_cpu_data;
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extern void init_amd_nbs(void);
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#define KERNEL_SPACE 0x80000000
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/* CPUID function 0x80000001, ebx */
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#define CPUID_PKGTYPE_MASK GENMASK(31, 28)
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#define CPUID_PKGTYPE_F 0x00000000
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#define CPUID_PKGTYPE_AM2R2_AM3 0x10000000
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/* DRAM controller (PCI function 2) */
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#define REG_DCT0_CONFIG_HIGH 0x094
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#define DDR3_MODE BIT(8)
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/* miscellaneous (PCI function 3) */
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#define REG_HARDWARE_THERMAL_CONTROL 0x64
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#define HTC_ENABLE BIT(0)
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#define REG_REPORTED_TEMPERATURE 0xa4
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#define REG_NORTHBRIDGE_CAPABILITIES 0xe8
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#define NB_CAP_HTC BIT(10)
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/*
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* For F15h M60h and M70h, REG_HARDWARE_THERMAL_CONTROL
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* and REG_REPORTED_TEMPERATURE have been moved to
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* D0F0xBC_xD820_0C64 [Hardware Temperature Control]
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* D0F0xBC_xD820_0CA4 [Reported Temperature Control]
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*/
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#define F15H_M60H_HARDWARE_TEMP_CTRL_OFFSET 0xd8200c64
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#define F15H_M60H_REPORTED_TEMP_CTRL_OFFSET 0xd8200ca4
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/* Common for Zen CPU families (Family 17h and 18h) */
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#define ZEN_REPORTED_TEMP_CTRL_OFFSET 0x00059800
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#define ZEN_CCD_TEMP(x) (0x00059954 + ((x) * 4))
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#define ZEN_CCD_TEMP_VALID BIT(11)
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#define ZEN_CCD_TEMP_MASK GENMASK(10, 0)
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#define ZEN_CUR_TEMP_SHIFT 21
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#define ZEN_CUR_TEMP_RANGE_SEL_MASK BIT(19)
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#define ZEN_SVI_BASE 0x0005A000
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/* F17h thermal registers through SMN */
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#define F17H_M01H_SVI_TEL_PLANE0 (ZEN_SVI_BASE + 0xc)
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#define F17H_M01H_SVI_TEL_PLANE1 (ZEN_SVI_BASE + 0x10)
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#define F17H_M31H_SVI_TEL_PLANE0 (ZEN_SVI_BASE + 0x14)
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#define F17H_M31H_SVI_TEL_PLANE1 (ZEN_SVI_BASE + 0x10)
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#define F17H_M01H_CFACTOR_ICORE 1000000 /* 1A / LSB */
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#define F17H_M01H_CFACTOR_ISOC 250000 /* 0.25A / LSB */
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#define F17H_M31H_CFACTOR_ICORE 1000000 /* 1A / LSB */
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#define F17H_M31H_CFACTOR_ISOC 310000 /* 0.31A / LSB */
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/* F19h thermal registers through SMN */
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#define F19H_M01_SVI_TEL_PLANE0 (ZEN_SVI_BASE + 0x14)
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#define F19H_M01_SVI_TEL_PLANE1 (ZEN_SVI_BASE + 0x10)
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#define F19H_M01H_CFACTOR_ICORE 1000000 /* 1A / LSB */
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#define F19H_M01H_CFACTOR_ISOC 310000 /* 0.31A / LSB */
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/* Provide lock for writing to NB_SMU_IND_ADDR */
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DEFINE_MUTEX(nb_smu_ind_mutex);
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DEFINE_MUTEX(smn_mutex);
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struct k10temp_data {
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struct pci_dev *pdev;
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void (*read_htcreg)(struct pci_dev *pdev, u32 *regval);
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void (*read_tempreg)(struct pci_dev *pdev, u32 *regval);
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int temp_offset;
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u32 temp_adjust_mask;
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u32 show_temp;
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bool is_zen;
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};
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#define TCTL_BIT 0
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#define TDIE_BIT 1
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#define TCCD_BIT(x) ((x) + 2)
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#define HAVE_TEMP(d, channel) ((d)->show_temp & BIT(channel))
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#define HAVE_TDIE(d) HAVE_TEMP(d, TDIE_BIT)
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struct tctl_offset {
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u8 model;
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char const *id;
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int offset;
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};
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const struct tctl_offset tctl_offset_table[] = {
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{ 0x17, "AMD Ryzen 5 1600X", 20000 },
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{ 0x17, "AMD Ryzen 7 1700X", 20000 },
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{ 0x17, "AMD Ryzen 7 1800X", 20000 },
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{ 0x17, "AMD Ryzen 7 2700X", 10000 },
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{ 0x17, "AMD Ryzen Threadripper 19", 27000 }, /* 19{00,20,50}X */
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{ 0x17, "AMD Ryzen Threadripper 29", 27000 }, /* 29{20,50,70,90}[W]X */
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};
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void read_htcreg_pci(struct pci_dev *pdev, u32 *regval)
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{
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pci_read_config_dword(pdev, REG_HARDWARE_THERMAL_CONTROL, regval);
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}
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void read_tempreg_pci(struct pci_dev *pdev, u32 *regval)
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{
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pci_read_config_dword(pdev, REG_REPORTED_TEMPERATURE, regval);
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}
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void amd_nb_index_read(struct pci_dev *pdev, unsigned int devfn,
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unsigned int base, int offset, u32 *val)
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{
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mutex_lock(&nb_smu_ind_mutex);
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pci_bus_write_config_dword(pdev->bus, devfn,
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base, offset);
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pci_bus_read_config_dword(pdev->bus, devfn,
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base + 4, val);
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mutex_unlock(&nb_smu_ind_mutex);
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}
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void read_htcreg_nb_f15(struct pci_dev *pdev, u32 *regval)
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{
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amd_nb_index_read(pdev, PCI_DEVFN(0, 0), 0xb8,
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F15H_M60H_HARDWARE_TEMP_CTRL_OFFSET, regval);
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}
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void read_tempreg_nb_f15(struct pci_dev *pdev, u32 *regval)
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{
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amd_nb_index_read(pdev, PCI_DEVFN(0, 0), 0xb8,
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F15H_M60H_REPORTED_TEMP_CTRL_OFFSET, regval);
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}
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void read_tempreg_nb_zen(struct pci_dev *pdev, u32 *regval)
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{
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amd_smn_read(amd_pci_dev_to_node_id(pdev),
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ZEN_REPORTED_TEMP_CTRL_OFFSET, regval);
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}
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long get_raw_temp(struct k10temp_data *data)
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{
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u32 regval;
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long temp;
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data->read_tempreg(data->pdev, ®val);
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temp = (regval >> ZEN_CUR_TEMP_SHIFT) * 125;
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if (regval & data->temp_adjust_mask)
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temp -= 49000;
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return temp;
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}
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#if 0
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const char *k10temp_temp_label[] = {
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"Tctl",
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"Tdie",
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"Tccd1",
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"Tccd2",
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"Tccd3",
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"Tccd4",
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"Tccd5",
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"Tccd6",
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"Tccd7",
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"Tccd8",
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};
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int k10temp_read_labels(struct device *dev,
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enum hwmon_sensor_types type,
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u32 attr, int channel, const char **str)
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{
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switch (type) {
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case hwmon_temp:
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*str = k10temp_temp_label[channel];
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break;
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default:
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return -EOPNOTSUPP;
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}
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return 0;
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}
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#endif
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int k10temp_read_temp(struct device *dev, u32 attr, int channel,
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long *val)
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{
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struct k10temp_data *data = dev_get_drvdata(dev);
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u32 regval;
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switch (attr) {
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case hwmon_temp_input:
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switch (channel) {
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case 0: /* Tctl */
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*val = get_raw_temp(data);
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if (*val < 0)
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*val = 0;
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break;
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case 1: /* Tdie */
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*val = get_raw_temp(data) - data->temp_offset;
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if (*val < 0)
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*val = 0;
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break;
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case 2 ... 9: /* Tccd{1-8} */
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amd_smn_read(amd_pci_dev_to_node_id(data->pdev),
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ZEN_CCD_TEMP(channel - 2), ®val);
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*val = (regval & ZEN_CCD_TEMP_MASK) * 125 - 49000;
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break;
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default:
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return -EOPNOTSUPP;
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}
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break;
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case hwmon_temp_max:
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*val = 70 * 1000;
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break;
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case hwmon_temp_crit:
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data->read_htcreg(data->pdev, ®val);
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*val = ((regval >> 16) & 0x7f) * 500 + 52000;
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break;
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case hwmon_temp_crit_hyst:
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data->read_htcreg(data->pdev, ®val);
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*val = (((regval >> 16) & 0x7f)
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- ((regval >> 24) & 0xf)) * 500 + 52000;
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break;
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default:
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return -EOPNOTSUPP;
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}
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return 0;
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}
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int k10temp_read(struct device *dev, enum hwmon_sensor_types type,
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u32 attr, int channel, long *val)
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{
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switch (type) {
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case hwmon_temp:
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return k10temp_read_temp(dev, attr, channel, val);
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default:
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return -EOPNOTSUPP;
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}
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}
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umode_t k10temp_is_visible(const void *_data,
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enum hwmon_sensor_types type,
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u32 attr, int channel)
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{
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const struct k10temp_data *data = _data;
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struct pci_dev *pdev = data->pdev;
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u32 reg;
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switch (type) {
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case hwmon_temp:
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switch (attr) {
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case hwmon_temp_input:
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if (!HAVE_TEMP(data, channel)){
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return 0;
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}
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break;
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case hwmon_temp_max:
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if (channel || data->is_zen)
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return 0;
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break;
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case hwmon_temp_crit:
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case hwmon_temp_crit_hyst:
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if (channel || !data->read_htcreg)
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return 0;
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pci_read_config_dword(pdev,
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REG_NORTHBRIDGE_CAPABILITIES,
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®);
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if (!(reg & NB_CAP_HTC))
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return 0;
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data->read_htcreg(data->pdev, ®);
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if (!(reg & HTC_ENABLE))
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return 0;
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break;
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// case hwmon_temp_label:
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// /* Show temperature labels only on Zen CPUs */
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// if (!data->is_zen || !HAVE_TEMP(data, channel))
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// return 0;
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// break;
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default:
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return 0;
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}
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break;
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default:
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return 0;
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}
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return 0444;
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}
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#if 0
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bool has_erratum_319(struct pci_dev *pdev)
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{
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u32 pkg_type, reg_dram_cfg;
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if (boot_cpu_data.x86 != 0x10)
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return false;
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/*
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* Erratum 319: The thermal sensor of Socket F/AM2+ processors
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* may be unreliable.
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*/
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pkg_type = cpuid_ebx(0x80000001) & CPUID_PKGTYPE_MASK;
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if (pkg_type == CPUID_PKGTYPE_F)
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return true;
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if (pkg_type != CPUID_PKGTYPE_AM2R2_AM3)
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return false;
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/* DDR3 memory implies socket AM3, which is good */
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pci_bus_read_config_dword(pdev->bus,
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PCI_DEVFN(PCI_SLOT(pdev->devfn), 2),
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REG_DCT0_CONFIG_HIGH, ®_dram_cfg);
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if (reg_dram_cfg & DDR3_MODE)
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return false;
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/*
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* Unfortunately it is possible to run a socket AM3 CPU with DDR2
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* memory. We blacklist all the cores which do exist in socket AM2+
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* format. It still isn't perfect, as RB-C2 cores exist in both AM2+
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* and AM3 formats, but that's the best we can do.
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*/
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return boot_cpu_data.x86_model < 4;
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}
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#endif
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const struct hwmon_channel_info *k10temp_info[] = {
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HWMON_CHANNEL_INFO(temp,
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HWMON_T_INPUT | HWMON_T_MAX |
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HWMON_T_CRIT | HWMON_T_CRIT_HYST |
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HWMON_T_LABEL,
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HWMON_T_INPUT | HWMON_T_LABEL,
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HWMON_T_INPUT | HWMON_T_LABEL,
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HWMON_T_INPUT | HWMON_T_LABEL,
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HWMON_T_INPUT | HWMON_T_LABEL,
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HWMON_T_INPUT | HWMON_T_LABEL,
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HWMON_T_INPUT | HWMON_T_LABEL,
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HWMON_T_INPUT | HWMON_T_LABEL,
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HWMON_T_INPUT | HWMON_T_LABEL,
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HWMON_T_INPUT | HWMON_T_LABEL),
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HWMON_CHANNEL_INFO(in,
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HWMON_I_INPUT | HWMON_I_LABEL,
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HWMON_I_INPUT | HWMON_I_LABEL),
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HWMON_CHANNEL_INFO(curr,
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HWMON_C_INPUT | HWMON_C_LABEL,
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HWMON_C_INPUT | HWMON_C_LABEL),
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NULL
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};
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/*
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const struct hwmon_ops k10temp_hwmon_ops = {
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.is_visible = k10temp_is_visible,
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.read = k10temp_read,
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.read_string = k10temp_read_labels,
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};*/
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/*
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const struct hwmon_chip_info k10temp_chip_info = {
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.ops = &k10temp_hwmon_ops,
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.info = k10temp_info,
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};*/
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void k10temp_get_ccd_support(struct pci_dev *pdev,
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struct k10temp_data *data, int limit)
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{
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u32 regval;
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int i;
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for (i = 0; i < limit; i++) {
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amd_smn_read(amd_pci_dev_to_node_id(pdev),
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ZEN_CCD_TEMP(i), ®val);
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if (regval & ZEN_CCD_TEMP_VALID)
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data->show_temp |= BIT(TCCD_BIT(i));
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}
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}
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int k10temp_probe(struct pci_dev *pdev, const struct pci_device_id *id, struct device *hwmon_dev)
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{
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// int unreliable = has_erratum_319(pdev);
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struct device *dev = &pdev->dev;
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struct k10temp_data *data;
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int i;
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/* if (unreliable) {
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if (!force) {
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dev_err(dev,"unreliable CPU thermal sensor; monitoring disabled\n");
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return -ENODEV;
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}
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dev_warn(dev,
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"unreliable CPU thermal sensor; check erratum 319\n");
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}
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*/
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data = kzalloc(sizeof(struct k10temp_data), GFP_KERNEL);
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memset(data, 0x0, sizeof(struct k10temp_data));
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if (!data)
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return -ENOMEM;
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data->pdev = pdev;
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data->show_temp |= BIT(TCTL_BIT); /* Always show Tctl */
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if (boot_cpu_data.x86 == 0x15 &&
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((boot_cpu_data.x86_model & 0xf0) == 0x60 ||
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(boot_cpu_data.x86_model & 0xf0) == 0x70)) {
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data->read_htcreg = read_htcreg_nb_f15;
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data->read_tempreg = read_tempreg_nb_f15;
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} else if (boot_cpu_data.x86 == 0x17 || boot_cpu_data.x86 == 0x18) {
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data->temp_adjust_mask = ZEN_CUR_TEMP_RANGE_SEL_MASK;
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data->read_tempreg = read_tempreg_nb_zen;
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data->show_temp |= BIT(TDIE_BIT); /* show Tdie */
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data->is_zen = true;
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switch (boot_cpu_data.x86_model) {
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case 0x1: /* Zen */
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case 0x8: /* Zen+ */
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case 0x11: /* Zen APU */
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case 0x18: /* Zen+ APU */
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k10temp_get_ccd_support(pdev, data, 4);
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break;
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case 0x31: /* Zen2 Threadripper */
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case 0x71: /* Zen2 */
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k10temp_get_ccd_support(pdev, data, 8);
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break;
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}
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} else if (boot_cpu_data.x86 == 0x19) {
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data->temp_adjust_mask = ZEN_CUR_TEMP_RANGE_SEL_MASK;
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data->read_tempreg = read_tempreg_nb_zen;
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data->show_temp |= BIT(TDIE_BIT);
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data->is_zen = true;
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switch (boot_cpu_data.x86_model) {
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case 0x0 ... 0x1: /* Zen3 SP3/TR */
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case 0x21: /* Zen3 Ryzen Desktop */
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k10temp_get_ccd_support(pdev, data, 8);
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break;
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}
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} else {
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data->read_htcreg = read_htcreg_pci;
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data->read_tempreg = read_tempreg_pci;
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}
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for (i = 0; i < ARRAY_SIZE(tctl_offset_table); i++) {
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const struct tctl_offset *entry = &tctl_offset_table[i];
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if (boot_cpu_data.x86 == entry->model &&
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strstr(boot_cpu_data.x86_model_id, entry->id)) {
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data->temp_offset = entry->offset;
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break;
|
|
}
|
|
}
|
|
|
|
hwmon_dev->driver_data=data;
|
|
return PTR_ERR_OR_ZERO(hwmon_dev);
|
|
}
|
|
|
|
const struct pci_device_id k10temp_id_table[] = {
|
|
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_10H_NB_MISC) },
|
|
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_11H_NB_MISC) },
|
|
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_CNB17H_F3) },
|
|
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_NB_F3) },
|
|
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_M10H_F3) },
|
|
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_M30H_NB_F3) },
|
|
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_M60H_NB_F3) },
|
|
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_M70H_NB_F3) },
|
|
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_16H_NB_F3) },
|
|
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_16H_M30H_NB_F3) },
|
|
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_DF_F3) },
|
|
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_M10H_DF_F3) },
|
|
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_M30H_DF_F3) },
|
|
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_M60H_DF_F3) },
|
|
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_M70H_DF_F3) },
|
|
{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_19H_DF_F3) },
|
|
{ PCI_VDEVICE(HYGON, PCI_DEVICE_ID_AMD_17H_DF_F3) },
|
|
{}
|
|
};
|
|
|
|
#define K10TEMP_NA (~0)
|
|
#define CHANEL_MAX 9
|
|
|
|
#pragma pack(push, 1)
|
|
struct{
|
|
int Tctl;
|
|
int Tdie;
|
|
int Tccd1;
|
|
int Tccd2;
|
|
int Tccd3;
|
|
int Tccd4;
|
|
int Tccd5;
|
|
int Tccd6;
|
|
int Tccd7;
|
|
int Tccd8;
|
|
|
|
int Tmax;
|
|
int Tcrit;
|
|
int Tcrit_hyst;
|
|
}k10temp_out;
|
|
#pragma pack(pop)
|
|
|
|
struct device k10temp_device;
|
|
|
|
void read_temp_info(struct device *dev, u32 attr, int channel, int *val){
|
|
long temp=0;
|
|
if(k10temp_is_visible(dev->driver_data, hwmon_temp, attr, channel)){
|
|
k10temp_read_temp(dev, attr, channel, &temp);
|
|
*val=temp;
|
|
}else{
|
|
*val=K10TEMP_NA;
|
|
}
|
|
}
|
|
|
|
void read_all_info(struct device* dev){
|
|
for(int c=0; c<=CHANEL_MAX; c++){
|
|
read_temp_info(dev, hwmon_temp_input, c, (int*)&k10temp_out+c);
|
|
}
|
|
read_temp_info(dev, hwmon_temp_max, 0, &k10temp_out.Tmax);
|
|
read_temp_info(dev, hwmon_temp_crit, 0, &k10temp_out.Tcrit);
|
|
read_temp_info(dev, hwmon_temp_crit_hyst, 0, &k10temp_out.Tcrit_hyst);
|
|
}
|
|
|
|
int __stdcall service_proc(ioctl_t *my_ctl){
|
|
if(!my_ctl || !my_ctl->output || (int)my_ctl->output>=KERNEL_SPACE-sizeof(k10temp_out)){
|
|
printk("k10temp: Bad address for writing data!\n");
|
|
return 0;
|
|
}
|
|
|
|
read_all_info(&k10temp_device);
|
|
|
|
if(my_ctl->out_size == sizeof(k10temp_out)){
|
|
memcpy(my_ctl->output, &k10temp_out, sizeof(k10temp_out));
|
|
return 0;
|
|
}
|
|
printk("k10temp: Invalid buffer length!\n");
|
|
return 1;
|
|
}
|
|
|
|
uint32_t drvEntry(int action, char *cmdline){
|
|
if(action != 1){
|
|
return 0;
|
|
}
|
|
pci_dev_t device;
|
|
const struct pci_device_id *k10temp_id;
|
|
int err;
|
|
|
|
cpu_detect(&boot_cpu_data);
|
|
|
|
err = enum_pci_devices();
|
|
if(unlikely(err != 0)) {
|
|
printk("k10temp: Device enumeration failed!\n");
|
|
return 0;
|
|
}
|
|
|
|
k10temp_id = find_pci_device(&device, k10temp_id_table);
|
|
|
|
if(unlikely(k10temp_id == NULL)){
|
|
printk("k10temp: Device not found!\n");
|
|
return 0;
|
|
}
|
|
|
|
init_amd_nbs();
|
|
k10temp_probe(&device.pci_dev, k10temp_id, &k10temp_device);
|
|
return RegService("k10temp", service_proc);
|
|
}
|