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@ -1,8 +0,0 @@
MIT No Attribution
Copyright 2025 admin@long-cat.net
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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@ -1,29 +0,0 @@
.PHONY : clean debug
OBJS = evga-icx.o evga-card.o icx3.o board-sensors.o zen3-rapl.o
LDLIBS = -li2c -lm
CFLAGS = -MD
ifdef USE_NVML
LDLIBS += -lnvidia-ml
CFLAGS += -DUSE_NVML
OBJS += nvidia-sensors.o
endif
ifdef USE_LIBPCI
LDLIBS += -lpci
CFLAGS += -DUSE_LIBPCI
OBJS += gddr6.o
endif
evga-icx : $(OBJS)
debug : CFLAGS += -g -Og
debug : evga-icx
clean :
rm evga-icx
rm *.o
rm *.d
-include $(OBJS:.o=.d)

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@ -3,7 +3,7 @@
This program allows you to read temperature sensors off of supported EVGA 30-series iCX3 video cards, as well as control the fans individually.
## Prerequisites
A supported EVGA 30-series card with iCX3. This includes:
A supported EVGA 30-series iCX3 card. I have not done extensive testing but belive this is every model of their:
* RTX 3060 Ti
* RTX 3070
* RTX 3070 Ti
@ -14,37 +14,21 @@ A supported EVGA 30-series card with iCX3. This includes:
The number of fans supported depends, of course, on your particular model.
You must have the `i2c-dev` kernel module loaded with `modprobe i2c-dev`
Access to the `/dev/i2c` device files, which means either:
* Run as root, or
* Install udev rules to allow user access. If you have the OpenRGB udev rules installed to control the LEDs you already have this set up.
## Dependencies
* libi2c-dev
* libnvidia-ml-dev (if building with `USE_NVML=1`)
* libpci-dev (if building with `USE_LIBPCI=1`)
## Building
`make`
## Optional features
### NVML support
Add the make flag `USE_NVML=1` and the it will also display the main GPU temperature ("GPU1") as reported by the NVIDIA driver. It will also display the performance cap/clock reason and memory controller utilization. This requires the NVIDIA management library (NVML) to be installed.
### VRAM and Hotspot temperature
Add the make flag `USE_LIBPCI=1` and you can also read the VRAM and "hotspot" temperatures. These require direct memory access to the PCI device so you must run as root and also enable the kernel parameter `iomem=relaxed`. These sensors are **extremely** undocumented so I can't say anything about their accuracy.
### Hardware monitoring
This program can also monitor hardware sensors using the standard linux `hwmon` API. See board-sensors.h for examples of how to configure these, they must be staticlly compiled in.
## Usage
Note that when controlling fans directly through iCX3 they will fall offline from the Nvidia driver and show as 0 RPM until you return them to automatic mode.
```text
Available options:
--i2c N : Only probe I2C bus N instead of all (may help with stuttering or freezing when probing I2C devices)
--gpu N : Control only GPU N instead of all supported cards
--fan SPEED : Set all fans at once to SPEED (see below)
--fanN SPEED : Set fan N (0-3) to SPEED
@ -54,12 +38,6 @@ Available options:
[+/-]N to set that fan to an RPM offset from the GPU-controlled speed
--reset : Reset all fans to their default mode
--sensors : Print sensor readings even if setting a fan speed
--compact : Print sensor reading in a compact one-line per card format
--watch N : Keep printing output every N seconds
--overwrite : Overwrite previously displayed info with --watch and --compact instead of continuously logging new lines
--color : Print headers in color in --compact mode for better readability
--no-reasons : Do not query NVML for clock reasons (can cause stuttering)
--board : Also print temperatures from the CPU, motherboard, and other sensors
```
### Examples:
@ -67,30 +45,19 @@ Read sensors:
```text
$ ./evga-icx
#0: EVGA GeForce RTX 3090 FTW3 Ultra v2 (/dev/i2c-3) @ c:00.0
Fan 0: 1751 RPM (58/0%, Auto)
Fan 1: 1730 RPM (57/0%, Auto)
Fan 2: 1712 RPM (57/0%, Offset)
Fan 0: 1094 RPM (36/0%, Auto)
Fan 1: 1164 RPM (38/0%, Auto)
Fan 2: 1161 RPM (38/0%, Offset)
Ext. fan: 0 RPM (0/0%, Offset)
GPU1: +65°C
GPU2: +57.8°C
VRAM: +74°C
MEM1: +56.1°C
MEM2: +53.5°C
MEM3: +55.5°C
PWR1: +48.2°C
PWR2: +53.2°C
PWR3: +59.6°C
PWR4: +58.0°C
PWR5: +51.1°C
HotSpot: +75°C
Mem util: 43%
Clock reasons: Power cap (0x4)
```
Compact one-line mode:
```text
$ ./evga-icx --compact
#0 FAN 59 59 58 0% GPU 66 60 MEM 74 58 55 58 PWR 49 55 61 60 53 HOT 77°C MEM 42% CLK Pwr
GPU2: 35.8 C
MEM1: 35.3 C
MEM2: 35.6 C
MEM3: 35.9 C
PWR1: 35.0 C
PWR2: 35.6 C
PWR3: 36.3 C
PWR4: 36.9 C
PWR5: 36.3 C
```
Set external fan to follow Nvidia driver controlled speed with a -500 RPM offset:

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@ -1,122 +0,0 @@
#include <dirent.h>
#include <string.h>
#include <stdlib.h>
#include "board-sensors.h"
int find_board_sensors(struct hwmon_avail_sensor *board_sensors, int max_sensors)
{
const char *hwmon_path = "/sys/class/hwmon/";
char device_path[NAME_MAX];
char sensor_path[NAME_MAX];
char driver_name[256];
FILE *file;
DIR *dir;
struct dirent *ent;
int num_sensors = 0;
/* Start looking for hwmon devices in /sys/class/hwmon/ */
dir = opendir(hwmon_path);
/* make sure we can open the device directory */
if(dir == NULL)
return 0;
/* loop over all hwmon devices */
while((ent = readdir(dir)) != NULL)
{
/* Ignore any non-hwmon dirs */
if(strncmp(ent->d_name, "hwmon", 5) != 0)
continue;
strcpy(device_path, hwmon_path);
strcat(device_path, ent->d_name);
/* Read in the name of the device */
strcpy(sensor_path, device_path);
strcat(sensor_path, "/name");
file = fopen(sensor_path, "r");
if (file == NULL)
continue;
if (fgets(driver_name, sizeof(driver_name), file) == NULL) {
fclose(file);
continue;
}
fclose(file);
/* Driver names have a linebreak at the end so let's remove that for comparison*/
driver_name[strlen(driver_name) - 1] = '\0';
/* Loop through all supported sensors and see if any are present in this device */
for (int i = 0; i < (sizeof(hwmon_sensor_info) / sizeof(struct hwmon_sensor)); i++) {
if (strcmp(driver_name, hwmon_sensor_info[i].driver_name) == 0) {
/* We matched the driver name, try to open the files */
strcpy(sensor_path, device_path);
strcat(sensor_path, "/");
strcat(sensor_path, hwmon_sensor_info[i].sensor_file_name);
strcat(sensor_path, "_input");
file = fopen(sensor_path, "r");
if (file != NULL) {
fclose(file);
/* Good open of the sensor file */
board_sensors[num_sensors].file = calloc(NAME_MAX, sizeof(char));
strcpy(board_sensors[num_sensors].file, sensor_path);
board_sensors[num_sensors].sort_index = i;
board_sensors[num_sensors].sensor_info = &hwmon_sensor_info[i];
/* Read in the sensor name */
board_sensors[num_sensors].sensor_name = calloc(MAX_SENSOR_NAME_LENGTH, sizeof(char));
strcpy(sensor_path, device_path);
strcat(sensor_path, "/");
strcat(sensor_path, hwmon_sensor_info[i].sensor_file_name);
strcat(sensor_path, "_label");
file = fopen(sensor_path, "r");
if (file != NULL)
fgets(board_sensors[num_sensors].sensor_name, MAX_SENSOR_NAME_LENGTH, file);
/* Sensor name seems to always have a trailing newline we don't want */
size_t len_without_newline = strcspn(board_sensors[num_sensors].sensor_name, "\n");
board_sensors[num_sensors].sensor_name[len_without_newline] = '\0';
if (num_sensors == max_sensors)
return num_sensors;
num_sensors++;
}
}
}
}
return num_sensors;
}
/* Returns 0 on a bad read or missing sensor, 1 on OK */
int get_sensor_reading(struct hwmon_avail_sensor *sensor, float *reading) {
char buf[256] = {0};
long int raw;
FILE *file;
file = fopen(sensor->file, "r");
if (file == NULL)
return 0;
fgets(buf, 256, file);
raw = strtol(buf, NULL, 10);
fclose(file);
*reading = (float)raw / sensor->sensor_info->divisor;
if (*reading == sensor->sensor_info->bad_value)
return 0;
return 1;
}

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@ -1,60 +0,0 @@
#ifndef BOARD_SENSORS_H
#define BOARD_SENSORS_H
#include <stdio.h>
#define MAX_SENSOR_NAME_LENGTH 256
struct hwmon_sensor {
char *driver_name; /* Contents of /sys/class/hwmon/hwmonX/name */
char *sensor_file_name; /* Sysfs file to read */
char *name_prefix; /* Prefix to attach to temp*_label for clarity */
char *short_name; /* 'Category' name when using compact mode */
char *units; /* Units string */
float divisor; /* Divisor to convert temp* to units */
float bad_value; /* Raw value that indicates a bad (missing) sensor TODO: verfiy most of these*/
};
/* Note the order here matters, it's the order these will be printed in */
static struct hwmon_sensor hwmon_sensor_info[] =
{
{"zenpower", "temp1", "CPU ", "CPU", "°C", 1000.0, -40.0 }, /* Tdie */
{"asusec", "temp2", "Motherboard ", "CPU", "°C", 1000.0, -40.0 }, /* CPU */
{"zenpower", "temp3", "CPU ", "CCD", "°C", 1000.0, -40.0 }, /* Tccd1 */
{"zenpower", "temp4", "CPU ", "CCD", "°C", 1000.0, -40.0 }, /* Tccd2 */
{"zenpower", "temp5", "CPU ", "CCD", "°C", 1000.0, -40.0 }, /* Tccd3 */
{"zenpower", "temp6", "CPU ", "CCD", "°C", 1000.0, -40.0 }, /* Tccd4 */
{"zenpower", "temp7", "CPU ", "CCD", "°C", 1000.0, -40.0 }, /* Tccd5 */
{"zenpower", "temp8", "CPU ", "CCD", "°C", 1000.0, -40.0 }, /* Tccd6 */
{"zenpower", "temp9", "CPU ", "CCD", "°C", 1000.0, -40.0 }, /* Tccd7 */
{"zenpower", "temp10", "CPU ", "CCD", "°C", 1000.0, -40.0 }, /* Tccd8 */
{"zen-rapl", "", "CPU ", "POW", " W", 0.0, 0.0 }, /* Zen RAPL placeholder */
{"asusec", "temp1", "Motherboard ", "CHIP", "°C", 1000.0, -40.0 }, /* Chipset */
{"asusec", "temp5", "Motherboard ", "VRM", "°C", 1000.0, -40.0 }, /* VRM */
{"asusec", "temp3", "", "MOBO", "°C", 1000.0, -40.0 }, /* Motherboard */
{"asusec", "temp4", "Motherboard ", "SENS", "°C", 1000.0, -40.0 }, /* T_Sensor */
{"asusec", "temp6", "Motherboard ", "H2O", "°C", 1000.0, -40.0 }, /* Water_In */
{"asusec", "temp7", "Motherboard ", "H2O", "°C", 1000.0, -40.0 }, /* Water_Out */
{"nvme", "temp1", "NVMe ", "NVME", "°C", 1000.0, -40.0 }, /* NVME Composite */
{"nct6798", "fan2", "CPU fan", "CPU", "%", 15.0, 0.0 }, /* cpu_fan, cpu mid */
{"asusec", "fan1", "", "CPU", "%", 15.0, 0.0 }, /* cpu_opt, cpu front */
{"nct6798", "fan5", "H amp", "CHA", "%", 12.0, 0.0 }, /* h_amp, front fan */
{"nct6798", "fan3", "Chassis 2", "CHA", "%", 12.0, 0.0 }, /* cha2, top front */
{"nct6798", "fan1", "Chassis 1", "CHA", "%", 12.0, 0.0 }, /* cha1, top rear */
{"nct6798", "fan4", "Chassis 3", "CHA", "%", 13.0, 0.0 }, /* cha3, rear */
{"nct6798", "fan6", "AIO pump", "CHA", "%", 12.0, 0.0 }, /* aio_pump? */
{"nct6798", "fan7", "W pump", "CHA", "%", 12.0, 0.0 }, /* w_pump+? */
{"asusec", "fan2", "", "CHIP", "%", 35.0, 0.0 }, /* chipset */
};
struct hwmon_avail_sensor {
char *sensor_name; /* Sensor name as read from the sysfs file */
int sort_index; /* Sort index for order to display in */
char *file; /* File to read from */
struct hwmon_sensor *sensor_info; /* Associated sensor info struct */
};
int find_board_sensors(struct hwmon_avail_sensor *board_sensors, int max_sensors);
int get_sensor_reading(struct hwmon_avail_sensor *sensor, float *reading);
#endif

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@ -8,20 +8,17 @@
/* Search all i2c device files for ones are on a PCI device of a supported GPU,
and respond with the correct iCX3 version information */
int find_evga_gpu_i2cs(struct card_info *infos, int max_gpus, int i2c_bus)
int find_evga_gpu_i2cs(struct card_info *infos, int max_gpus)
{
char i2c_devices_path[PATH_MAX];
char device_path[PATH_MAX];
char dev_file[PATH_MAX];
char pci_path[PATH_MAX];
char *pci_addr;
char i2c_devices_path[NAME_MAX];
char device_path[NAME_MAX];
char dev_file[NAME_MAX];
FILE *test_fd;
DIR *dir;
struct dirent *ent;
int num_gpus = 0;
int current_i2c_bus = -1;
unsigned short pci_vendor, pci_device, pci_subsystem_vendor, pci_subsystem_device = 0;
/* Start looking for I2C adapters in /sys/bus/i2c/devices/ */
@ -39,31 +36,14 @@ int find_evga_gpu_i2cs(struct card_info *infos, int max_gpus, int i2c_bus)
if(strncmp(ent->d_name, "i2c-", 4) != 0)
continue;
/* Only probe the specific device given (if provided) */
if (i2c_bus >= 0) {
sscanf(ent->d_name, "i2c-%i", &current_i2c_bus);
if (current_i2c_bus != i2c_bus)
continue;
}
strcpy(device_path, i2c_devices_path);
strcat(device_path, ent->d_name);
/* Only check Nvidia devices */
pci_addr = read_nvidia_pci_address(device_path);
if (pci_addr == NULL)
continue;
/* Read the PCI info for the underlying device */
strcat(device_path, "/../");
if (realpath(device_path, pci_path) == NULL)
continue;
pci_vendor = read_pci_id(pci_path, "/vendor");
pci_device = read_pci_id(pci_path, "/device");
pci_subsystem_vendor = read_pci_id(pci_path, "/subsystem_vendor");
pci_subsystem_device = read_pci_id(pci_path, "/subsystem_device");
pci_vendor = read_pci_id(device_path, "/device/vendor");
pci_device = read_pci_id(device_path, "/device/device");
pci_subsystem_vendor = read_pci_id(device_path, "/device/subsystem_vendor");
pci_subsystem_device = read_pci_id(device_path, "/device/subsystem_device");
/* See if it's a matching device for a supported EVGA card */
for (int i = 0; i < (sizeof(evga_pci_ids) / sizeof(struct gpu_pci_info)); i++) {
@ -76,12 +56,10 @@ int find_evga_gpu_i2cs(struct card_info *infos, int max_gpus, int i2c_bus)
/* Matched all PCI IDs, check for good firmware read */
strcpy(dev_file, "/dev/");
strcat(dev_file, ent->d_name);
infos[num_gpus].i2c_dev_path = dev_file;
if (icx3_init(&infos[num_gpus]) > 0) {
if (check_for_icx3(dev_file)) {
/* Write our card info into the provided struct array */
infos[num_gpus].card_name = evga_pci_ids[i].card_name;
infos[num_gpus].pci_id = pci_addr;
infos[num_gpus].pci_device_id = pci_device;
infos[num_gpus].pci_id = read_nvidia_pci_address(device_path);
infos[num_gpus].i2c_dev_path = calloc(strlen(dev_file) + 1, sizeof(char));
strcpy(infos[num_gpus].i2c_dev_path, dev_file);
num_gpus++;
@ -102,7 +80,7 @@ int find_evga_gpu_i2cs(struct card_info *infos, int max_gpus, int i2c_bus)
unsigned short read_pci_id(char *device_path, char *field)
{
char buf[16];
char file_path[PATH_MAX];
char file_path[NAME_MAX];
strcpy(file_path, device_path);
strcat(file_path, field);
@ -124,7 +102,7 @@ unsigned short read_pci_id(char *device_path, char *field)
char *read_nvidia_pci_address(char *device_path)
{
char file_path[PATH_MAX];
char file_path[NAME_MAX];
char *ret = calloc(16 + 1, sizeof(char)); /* assuming pci ids could look as large as 00000000:0C:00.0 */
@ -133,18 +111,12 @@ char *read_nvidia_pci_address(char *device_path)
FILE *fp = fopen(file_path, "r");
if (fp == NULL) {
free(ret);
if (fp == NULL)
return NULL;
}
fscanf(fp, "NVIDIA i2c adapter %*u at %16s", ret);
fclose(fp);
if (strlen(ret) == 0) {
free(ret);
return NULL;
}
fclose(fp);
return ret;
}

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@ -1,6 +1,3 @@
#ifndef EVGA_CARD_H
#define EVGA_CARD_H
#define NVIDIA_VEN 0x10DE
#define NVIDIA_RTX3060_DEV 0x2503
@ -84,16 +81,9 @@
#define EVGA_RTX3090TI_FTW3_ULTRA_GAMING_SUB_DEV 0x4985
struct card_info {
char *card_name; /* The 'nice' name of the card */
char *pci_id; /* PCI bus address in domain:bus:device.function format. May be shortened (e.g. c:00.0) */
unsigned short pci_device_id; /* The device ID of the card, i.e. corresponds to the NVIDIA model number */
char *i2c_dev_path; /* Path to the i2c device file */
int i2c_fd; /* File descriptor for the i2c device file, for re-use */
int product_id; /* EVGA internal product ID, as reported by the iCX3 controller */
unsigned int bar0; /* Address of the card's PCI base address register */
void *nvml_device; /* Pointer to nvmlDevice_t for use in NVML calls */
void *vram_addr; /* Memory mapping for GDDR6 temps */
void *hotspot_addr; /* Memory mapping for hotspot temperature */
char *card_name;
char *pci_id;
char *i2c_dev_path;
};
struct gpu_pci_info {
@ -165,8 +155,6 @@ static struct gpu_pci_info evga_pci_ids[] =
{"EVGA GeForce RTX 3090 Ti FTW3 Ultra Gaming" , NVIDIA_VEN, NVIDIA_RTX3090TI_DEV, EVGA_SUB_VEN, EVGA_RTX3090TI_FTW3_ULTRA_GAMING_SUB_DEV }
};
int find_evga_gpu_i2cs(struct card_info *infos, int max_gpus, int i2c_bus);
int find_evga_gpu_i2cs(struct card_info *infos, int max_gpus);
unsigned short read_pci_id(char *device_path, char *field);
char *read_nvidia_pci_address(char *device_path);
#endif

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@ -5,33 +5,12 @@
#include <fcntl.h>
#include <stdlib.h>
#ifdef USE_NVML
#include "nvidia-sensors.h"
#endif
#ifdef USE_LIBPCI
#include "gddr6.h"
#endif
#include "icx3.h"
#include "evga-card.h"
#include "board-sensors.h"
#include "zen3-rapl.h"
#define MAX_GPUS 16
#define MAX_BOARD_SENSORS 256
#define HEADER_COLOR_START "\x1b[36m"
#define HEADER_COLOR_END "\x1b[39m"
static char *header_start = "";
static char *header_end = "";
static int zen3_rapl_sensor = -1; /* Board sensor number for the RAPL sensor */
static int compact = 0; /* Compact one-line per GPU display */
static int no_reasons = 0; /* Don't probe or display NVML clock reasons */
static const char helpstring[] = "Available options:\n"
"--i2c N : Only probe I2C bus N instead of all (may help with stuttering or freezing when probing I2C devices)\n"
"--gpu N : Control only GPU N instead of all supported cards\n"
"--fan SPEED : Set all fans at once to SPEED (see below)\n"
"--fanN SPEED : Set fan N (0-3) to SPEED\n"
@ -40,41 +19,21 @@ static const char helpstring[] = "Available options:\n"
" N to set the fan to that manual % speed\n"
" [+/-]N to set that fan to an RPM offset from the GPU-controlled speed\n"
"--reset : Reset all fans to their default mode\n"
"--sensors : Print sensor readings even if setting a fan speed \n"
"--compact : Print sensor reading in a compact one-line per card format\n"
"--watch N : Keep printing output every N seconds\n"
"--overwrite : Overwrite previously displayed info with --watch and --compact instead of continuously logging\n"
"--color : Print headers in color in --compact mode for better readability\n"
"--no-reasons : Do not query NVML for clock reasons (can cause stuttering)\n"
"--board : Also print temperatures from the CPU, motherboard, and other sensors\n";
"--sensors : Print sensor readings even if setting a fan speed \n";
void print_gpu_info(int gpu_num, struct card_info gpus[]);
void print_board_info(struct hwmon_avail_sensor *board_sensors, int num_sensors);
int main (int argc, char **argv)
{
struct card_info gpus[MAX_GPUS];
struct hwmon_avail_sensor board_sensors[MAX_BOARD_SENSORS];
int gpu_count, board_sensor_count;
int gpu_count;
int print_info = 0;
int gpu_num = -1; /* Card to control */
int i2c_bus = -1; /* Specific i2c bus to probe instead of all */
int overwrite = 0; /* Overwrite printed console info in compact mode */
unsigned int watch = 0; /* Refresh display every this many seconds */
int print_board_sensors = 0; /* Print CPU/motherbord/other sensors as well */
char *fan_speed[ICX3_MAX_FANS] = {NULL};
/* Input parsing */
for (int i = 1; i < argc; i++){
if (strcmp(argv[i], "--i2c") == 0) {
i++;
if (i < argc) {
i2c_bus = atoi(argv[i]);
} else {
printf(helpstring);
return -1;
}
} else if (strcmp(argv[i], "--gpu") == 0) {
if (strcmp(argv[i], "--gpu") == 0) {
i++;
if (i < argc) {
gpu_num = atoi(argv[i]);
@ -106,25 +65,6 @@ int main (int argc, char **argv)
fan_speed[j] = "auto";
} else if (strcmp(argv[i], "--sensors") == 0) {
print_info = 1;
} else if (strcmp(argv[i], "--compact") == 0) {
compact = 1;
} else if (strcmp(argv[i], "--watch") == 0) {
i++;
if (i < argc) {
watch = atoi(argv[i]);
} else {
printf(helpstring);
return -1;
}
} else if (strcmp(argv[i], "--overwrite") == 0) {
overwrite = 1;
} else if (strcmp(argv[i], "--color") == 0) {
header_start = HEADER_COLOR_START;
header_end = HEADER_COLOR_END;
} else if (strcmp(argv[i], "--no-reasons") == 0) {
no_reasons = 1;
} else if (strcmp(argv[i], "--board") == 0) {
print_board_sensors = 1;
} else {
printf(helpstring);
return 0;
@ -140,14 +80,8 @@ int main (int argc, char **argv)
}
}
/* Don't use overwrite mode unless set to compact (we can't tell how many lines the output will be per GPU) */
if (overwrite && !compact)
overwrite = 0;
gpu_count = find_evga_gpu_i2cs(gpus, MAX_GPUS);
/* Scan for supported GPUs */
gpu_count = find_evga_gpu_i2cs(gpus, MAX_GPUS, i2c_bus);
/* Check for no GPUs found or other errors */
if (gpu_count == -1) {
printf("Error scanning I2C devices\n");
return -1;
@ -155,236 +89,47 @@ int main (int argc, char **argv)
printf("No supported GPUs found.\nAre you root or do you have udev access to i2c devices?\nDo you need to run `modprobe i2c-dev`?\n");
return -1;
}
/* Check for invalid GPUs */
if (gpu_num > gpu_count - 1) {
printf("Invalid GPU number specified (%d, max %d)\n", gpu_num, gpu_count - 1);
return -1;
}
/* Scan for motherboard/CPU/other sensors */
if (print_board_sensors) {
board_sensor_count = find_board_sensors(board_sensors, MAX_BOARD_SENSORS);
if (init_rapl() && board_sensor_count < MAX_BOARD_SENSORS) {
board_sensors[board_sensor_count] = rapl_sensor;
zen3_rapl_sensor = board_sensor_count;
board_sensor_count++;
}
}
/* execute fan commands */
if (gpu_num == -1) {
for (int i = 0; i < gpu_count; i++){
for (int j = 0; j < ICX3_MAX_FANS; j++) {
if (fan_speed[j] != NULL)
set_fan(j, fan_speed[j], &gpus[i]);
set_fan(j, fan_speed[j], gpus[i].i2c_dev_path);
/* printf("gpu %d fan %d : %s\n", i, j, fan_speed[j]); */
}
}
} else if (gpu_num <= gpu_count - 1) {
for (int j = 0; j < ICX3_MAX_FANS; j++) {
if (fan_speed[j] != NULL)
set_fan(gpu_num, fan_speed[j], &gpus[gpu_num]);
set_fan(gpu_num, fan_speed[j], gpus[gpu_num].i2c_dev_path);
/* printf("gpu %d fan %d : %s\n", gpu_num, j, fan_speed[j]);*/
}
}
/* NVML init */
#ifdef USE_NVML
init_nvml();
for (int i = 0; i < gpu_count; i++) {
gpus[i].nvml_device = malloc(sizeof(nvmlDevice_t));
get_nvml_handle(&gpus[i]);
}
#endif
/* PCI init for VRAM/hotspot temps */
#ifdef USE_LIBPCI
for (int i = 0; i < gpu_count; i++)
init_gddr6(&gpus[i]);
#endif
/* print sensor info */
if (print_info) {
do {
if (overwrite)
printf("\x1b[K"); /* Clear current console line */
if (print_board_sensors)
print_board_info(board_sensors, board_sensor_count);
if (gpu_num == -1) {
/* No GPU specified on command line, loop over all supported GPUs */
for (int i = 0; i < gpu_count; i++){
if (i > 0)
printf("\n");
print_gpu_info(i, &gpus[i]);
print_gpu_info(i, gpus);
}
} else if (gpu_num <= gpu_count - 1) {
print_gpu_info(gpu_num, &gpus[gpu_num]);
print_gpu_info(gpu_num, gpus);
}
}
if (!overwrite)
printf("\n"); /* Print line break at the end for continuous output */
if (overwrite && compact) {
printf("\x1b[1G"); /* Move cursor back to column 1 */
if (gpu_count > 1 || print_board_sensors)
printf("\x1b[%dA", gpu_count-1+print_board_sensors); /* Move cursor back up to the top of gpu list */
}
fflush(stdout);
sleep(watch);
} while (watch > 0);
}
#ifdef USE_NVML
nvmlShutdown();
#endif
}
void print_board_info(struct hwmon_avail_sensor *board_sensors, int num_sensors)
{
int printed_sensors = 0;
int current_sort_index = 0;
float current_reading = 0.0;
int good_reading = 0;
/* These allow us to 'summarize' units and categories by only printing them when they change */
char *last_short_name = NULL;
char *last_units = NULL;
float rapl_power;
for (int i = 0; i < (sizeof(hwmon_sensor_info) / sizeof(struct hwmon_sensor)); i++) {
/* Inject our Zen RAPL power reading here */
if (strcmp(hwmon_sensor_info[i].driver_name, "zen-rapl") == 0) {
board_sensors[zen3_rapl_sensor].sort_index = current_sort_index;
board_sensors[zen3_rapl_sensor].sensor_info = &hwmon_sensor_info[i];
}
for (int j=0; j < num_sensors; j++) {
struct hwmon_avail_sensor *current_sensor = &board_sensors[j];
/* Loop over all sensors, but only output those with the current sort index so they come out sort of sorted
Duplicates (e.g.) multiple NVMe will come out in whatever sort of order the directory listing happened to */
if (current_sensor->sort_index == current_sort_index) {
printed_sensors++;
if (j == zen3_rapl_sensor) {
good_reading = 1;
current_reading = get_rapl_package_power();
} else {
good_reading = get_sensor_reading(current_sensor, &current_reading);
}
if (!good_reading)
continue;
if (compact) {
/* Print units if needed */
if (last_units != NULL && strcmp(current_sensor->sensor_info->units, last_units))
printf("%s", last_units);
/* Print new section header if needed */
if (last_short_name == NULL || strcmp(current_sensor->sensor_info->short_name, last_short_name)) {
if (last_short_name != NULL) /* Spacer for all headings not the first one */
printf(" ");
printf("%s%s%s", header_start, current_sensor->sensor_info->short_name, header_end);
}
printf(" %3.0f", current_reading);
last_short_name = current_sensor->sensor_info->short_name;
last_units = current_sensor->sensor_info->units;
} else {
printf("%s%s: %+.1f%s\n",
current_sensor->sensor_info->name_prefix,
current_sensor->sensor_name,
current_reading,
current_sensor->sensor_info->units);
}
}
}
current_sort_index++;
}
if (compact && last_units != NULL)
printf("%s", last_units);
void print_gpu_info(int gpu_num, struct card_info gpus[]) {
printf("#%d: %s (%s) @ %s\n", gpu_num, gpus[gpu_num].card_name, gpus[gpu_num].i2c_dev_path, gpus[gpu_num].pci_id);
print_icx3_fans(gpus[gpu_num].i2c_dev_path);
print_icx3_temps(gpus[gpu_num].i2c_dev_path);
printf("\n");
}
void print_gpu_info(int gpu_num, struct card_info *gpu)
{
if (compact) {
/* One line per GPU */
printf("%s#%d FAN%s", header_start, gpu_num, header_end);
print_icx3_fans_oneline(gpu);
printf("%s GPU%s", header_start, header_end);
#ifdef USE_NVML
printf(" %3d", get_nvml_temp(gpu));
#endif
float icx_temp_sensors[ICX3_NUM_TEMP_SENSORS] = {};
get_temp_sensors(icx_temp_sensors, gpu);
for (int i = 0; i < ICX3_NUM_TEMP_SENSORS; i++) {
if (i > 0 && strncmp(icx3_temp_sensor_names[i], icx3_temp_sensor_names[i-1], 3))
printf("%s %.3s%s", header_start, icx3_temp_sensor_names[i], header_end);
#ifdef USE_LIBPCI
if (strncmp(icx3_temp_sensor_names[i], "MEM1", 4) == 0)
printf(" %3.0f", get_vram_temp(gpu)); /* Print the VRAM temp before the rest of the memory sensors */
#endif
printf(" %3.0f", icx_temp_sensors[i]);
}
#ifdef USE_LIBPCI
printf("%s HOT%s %3.0f", header_start, header_end, get_hotspot_temp(gpu));
#endif
printf("°C ");
#ifdef USE_NVML
printf("%s MEM %s", header_start, header_end);
printf("%3d%%", get_nvml_mem_util(gpu));
if (!no_reasons) {
printf("%s CLK %s", header_start, header_end);
print_nvml_clock_reason(1, gpu);
}
#endif
} else {
/* One line per GPU sensor */
printf("#%d: %s (%s) @ %s\n", gpu_num, gpu->card_name, gpu->i2c_dev_path, gpu->pci_id);
print_icx3_fans(gpu);
#ifdef USE_NVML
printf("GPU1: %+d°C\n", get_nvml_temp(gpu));
#endif
float icx_temp_sensors[ICX3_NUM_TEMP_SENSORS] = {};
get_temp_sensors(icx_temp_sensors, gpu);
for (int i = 0; i < ICX3_NUM_TEMP_SENSORS; i++) {
#ifdef USE_LIBPCI
if (strncmp(icx3_temp_sensor_names[i], "MEM1", 4) == 0)
printf("VRAM: +%.0f°C\n", get_vram_temp(gpu)); /* Print the VRAM temp before the rest of the memory sensors */
#endif
printf("%s: %+.1f°C\n",
icx3_temp_sensor_names[i],
icx_temp_sensors[i]);
}
#ifdef USE_LIBPCI
printf("HotSpot: +%.0f°C\n", get_hotspot_temp(gpu));
#endif
#ifdef USE_NVML
printf("Mem util: %d%%\n", get_nvml_mem_util(gpu));
if (!no_reasons) {
printf("Clock reasons: ");
print_nvml_clock_reason(0, gpu);
}
printf("\n");
#endif
}
}

104
gddr6.c
View File

@ -1,104 +0,0 @@
#include <string.h>
#include <stdio.h>
#include <pci/pci.h>
#include <sys/mman.h>
#include <fcntl.h>
#include <unistd.h>
#define PG_SZ sysconf(_SC_PAGE_SIZE)
#include "gddr6.h"
void init_gddr6(struct card_info *card)
{
/* Parse the address of the card to get the PCI info */
char pci_address[] = "00000000:00:00.0";
int len = strlen(card->pci_id);
strcpy(&pci_address[sizeof(pci_address) - len - 1], card->pci_id);
int domain = 0;
int bus = 0;
int dev = 0;
int func = 0;
sscanf(pci_address, "%x:%x:%x.%x", &domain, &bus, &dev, &func);
struct pci_access *pacc = NULL;
struct pci_dev *pci_dev = NULL;
pacc = pci_alloc();
pci_init(pacc);
pci_dev = pci_get_dev(pacc, domain, bus, dev, func);
pci_fill_info(pci_dev, PCI_FILL_IDENT | PCI_FILL_BASES | PCI_FILL_CLASS);
card->bar0 = (pci_dev->base_addr[0] & 0xFFFFFFFF);
pci_cleanup(pacc);
/* Open our memory mappings */
card->vram_addr = NULL;
card->hotspot_addr = NULL;
int fd;
if ((fd = open("/dev/mem", O_RDWR | O_SYNC)) == -1)
{
printf("Can't read memory for VRAM and Hotspot temperatures. If you are root, enable kernel parameter iomem=relaxed\n");
return;
}
unsigned int phys_addr, base_offset;
void *map_base;
for (int i = 0; i < sizeof(device_offset_info) / sizeof(struct device_offset); i++) {
if (card->pci_device_id == device_offset_info[i].device_id){
/* Map for VRAM */
phys_addr = (card->bar0 + device_offset_info[i].vram_offset);
base_offset = phys_addr & ~(PG_SZ-1);
map_base = mmap(0, PG_SZ, PROT_READ, MAP_SHARED, fd, base_offset);
if(map_base == (void *) -1)
printf("Can't map memory for VRAM temperature. If you are root, enable kernel parameter iomem=relaxed\n");
else
card->vram_addr = (void *) map_base + (phys_addr - base_offset);
/* Map for hotspot */
phys_addr = (card->bar0 + device_offset_info[i].hotspot_offset);
base_offset = phys_addr & ~(PG_SZ-1);
map_base = mmap(0, PG_SZ, PROT_READ, MAP_SHARED, fd, base_offset);
if(map_base == (void *) -1)
printf("Can't map memory for Hotspot temperature. If you are root, enable kernel parameter iomem=relaxed\n");
else
card->hotspot_addr = (void *) map_base + (phys_addr - base_offset);
}
}
close(fd);
}
float get_vram_temp(struct card_info *card)
{
float temp = 0.0;
if(card->vram_addr == NULL)
return 0.0;
int read_result = *((unsigned int *) card->vram_addr);
temp = ((read_result & 0x00000fff) / 0x20);
return temp;
}
float get_hotspot_temp(struct card_info *card)
{
float temp = 0.0;
if(card->hotspot_addr == NULL)
return 0.0;
int read_result = *((unsigned int *) card->hotspot_addr);
temp = (read_result >> 8) & 0xff;
return temp;
}

26
gddr6.h
View File

@ -1,26 +0,0 @@
#include "evga-card.h"
struct device_offset {
unsigned short device_id;
int vram_offset;
int hotspot_offset;
};
static struct device_offset device_offset_info[] =
{
{.device_id = NVIDIA_RTX3090TI_DEV, .vram_offset = 0x0000E2A8, .hotspot_offset = 0x0002046c}, /* RTX 3090 Ti */
{.device_id = NVIDIA_RTX3090_DEV, .vram_offset = 0x0000E2A8, .hotspot_offset = 0x0002046c}, /* RTX 3090 */
{.device_id = NVIDIA_RTX3080TI_DEV, .vram_offset = 0x0000E2A8, .hotspot_offset = 0x0002046c}, /* RTX 3080 Ti */
{.device_id = NVIDIA_RTX3080_12G_LHR_DEV, .vram_offset = 0x0000E2A8, .hotspot_offset = 0x0002046c}, /* RTX 3080 12G LHR */
{.device_id = NVIDIA_RTX3080_LHR_DEV, .vram_offset = 0x0000E2A8, .hotspot_offset = 0x0002046c}, /* RTX 3080 LHR */
{.device_id = NVIDIA_RTX3080_DEV, .vram_offset = 0x0000E2A8, .hotspot_offset = 0x0002046c}, /* RTX 3080 */
{.device_id = NVIDIA_RTX3080_DEV, .vram_offset = 0x0000E2A8, .hotspot_offset = 0x0002046c}, /* RTX 3080 */
{.device_id = NVIDIA_RTX3070TI_GA102_DEV, .vram_offset = 0x0000EE50, .hotspot_offset = 0x0002046c}, /* RTX 3070 Ti GA102 TODO:check */
{.device_id = NVIDIA_RTX3070TI_DEV, .vram_offset = 0x0000EE50, .hotspot_offset = 0x0002046c}, /* RTX 3070 Ti TODO:check */
{.device_id = NVIDIA_RTX3070_LHR_DEV, .vram_offset = 0x0000EE50, .hotspot_offset = 0x0002046c}, /* RTX 3070 */
{.device_id = NVIDIA_RTX3070_DEV, .vram_offset = 0x0000EE50, .hotspot_offset = 0x0002046c}, /* RTX 3070 LHR */
};
void init_gddr6(struct card_info *card);
float get_vram_temp(struct card_info *card);
float get_hotspot_temp(struct card_info *card);

171
icx3.c
View File

@ -9,68 +9,99 @@
#include "icx3.h"
int icx3_init(struct card_info *card)
/* Check an I2C device file for an ICX3 controller, returns the product id, or ICX3_PRODUCT_NONE on bad read. */
enum icx3_product_id check_for_icx3(char *i2c_dev_path)
{
char data[I2C_SMBUS_BLOCK_MAX] = {};
int read_result;
int fd, read_result;
struct icx3_info *temp_info;
int fd = open(card->i2c_dev_path, O_RDONLY);
fd = open_i2c_dev(i2c_dev_path);
if (fd == -1)
return -1;
if (ioctl(fd, I2C_SLAVE, ICX3_I2C_ADDR) < 0) {
close(fd);
return -1;
}
return ICX3_PRODUCT_NONE;
read_result = i2c_smbus_read_i2c_block_data(fd, ICX3_REG_READINFORMATION, ICX3_READINFORMATION_SIZE, data);
close(fd);
if (read_result == ICX3_READINFORMATION_SIZE) {
temp_info = (struct icx3_info*)&data;
if (temp_info->slave_address == ICX3_I2C_ADDR) {
card->product_id = temp_info->product_id;
card->i2c_fd = fd;
return fd;
} else {
close(fd);
return -1;
}
if (temp_info->slave_address == ICX3_I2C_ADDR)
return temp_info->product_id;
}
return -1;
return ICX3_PRODUCT_NONE;
}
void print_icx3_fans(struct card_info *card)
void print_icx3_fans(char *i2c_dev_path)
{
struct icx3_fan_control fans[ICX3_MAX_FANS];
get_fan_status(fans, card);
char data[I2C_SMBUS_BLOCK_MAX] = {};
int fd, read_result;
struct icx3_fan_control *fan_status;
/* First thing is to check for the product ID to figure out how many fans we have */
char fans_avail[ICX3_MAX_FANS] = {0};
get_available_fans(i2c_dev_path, fans_avail);
fd = open_i2c_dev(i2c_dev_path);
if (fd == -1)
return;
for (int i=0; i < ICX3_MAX_FANS; i++) {
if (!fans_avail[i])
continue;
read_result = i2c_smbus_read_i2c_block_data(fd, ICX3_REG_FANCONTROL + i, ICX3_FANCONTROL_SIZE, data);
if (read_result != ICX3_FANCONTROL_SIZE) {
close(fd);
return;
}
fan_status = (struct icx3_fan_control*) &data;
printf("%s: %d RPM (%d/%d%%, %s)\n",
icx3_fan_names[i],
fans[i].rpm_status,
fans[i].duty_status,
fans[i].duty,
icx3_fan_mode_names[fans[i].fanmode]
fan_status->rpm_status,
fan_status->duty_status,
fan_status->duty,
icx3_fan_mode_names[fan_status->fanmode]
);
}
close(fd);
}
void print_icx3_fans_oneline(struct card_info *card)
void print_icx3_temps(char *i2c_dev_path)
{
struct icx3_fan_control fans[ICX3_MAX_FANS];
get_fan_status(fans, card);
char data[I2C_SMBUS_BLOCK_MAX] = {};
int fd, read_result;
struct icx3_temp_sensors *temp_sensors;
for (int i=0; i < ICX3_MAX_FANS; i++) {
printf(" %3d", fans[i].duty_status);
fd = open_i2c_dev(i2c_dev_path);
if (fd == -1)
return;
read_result = i2c_smbus_read_i2c_block_data(fd, ICX3_REG_TEMPSENSOR, ICX3_TEMPSENSOR_SIZE, data);
if (read_result != ICX3_TEMPSENSOR_SIZE) {
close(fd);
return;
}
temp_sensors = (struct icx3_temp_sensors*) &data;
float cur_temp;
short cur_data;
for (int i=0; i<ICX3_NUM_TEMP_SENSORS; i++) {
/* endian swap */
cur_data = (short)(temp_sensors->data[2*i+1] << 8) | (short)(temp_sensors->data[2*i]);
/* temp is reported in tenths of deg C */
cur_temp = (float)cur_data/10;
printf("%s: %.1f C\n",
icx3_temp_sensor_names[i],
cur_temp);
}
printf("%%");
}
void get_available_fans(char *fans_avail, struct card_info *card)
void get_available_fans(char *i2c_dev_path, char *fans_avail)
{
int product_id = card->product_id;
int product_id = check_for_icx3(i2c_dev_path);
/* From ICX3TotalFanCtrl.cs */
switch(product_id) {
@ -124,77 +155,54 @@ void get_available_fans(char *fans_avail, struct card_info *card)
}
}
void get_fan_status(struct icx3_fan_control *fans, struct card_info *card)
int open_i2c_dev(char *i2c_dev_path)
{
char data[I2C_SMBUS_BLOCK_MAX] = {};
int read_result;
int fd = open(i2c_dev_path, O_RDONLY);
char fans_avail[ICX3_MAX_FANS] = {0};
get_available_fans(fans_avail, card);
/* Error silently here because we should have already checked we can read the i2c in check_for_icx3() */
if (fd == -1)
return -1;
for (int i=0; i < ICX3_MAX_FANS; i++) {
if (!fans_avail[i]) {
continue;
}
read_result = i2c_smbus_read_i2c_block_data(card->i2c_fd, ICX3_REG_FANCONTROL + i, ICX3_FANCONTROL_SIZE, data);
if (read_result != ICX3_FANCONTROL_SIZE) {
return;
}
memcpy(&fans[i], &data, sizeof(struct icx3_fan_control));
if (ioctl(fd, I2C_SLAVE, ICX3_I2C_ADDR) < 0) {
close(fd);
return -1;
}
return fd;
}
void get_temp_sensors(float *temps, struct card_info *card)
void enable_write(int enable, char *i2c_dev_path)
{
char data[I2C_SMBUS_BLOCK_MAX] = {};
int read_result;
struct icx3_temp_sensors *temp_sensors;
read_result = i2c_smbus_read_i2c_block_data(card->i2c_fd, ICX3_REG_TEMPSENSOR, ICX3_TEMPSENSOR_SIZE, data);
if (read_result != ICX3_TEMPSENSOR_SIZE)
int fd = open_i2c_dev(i2c_dev_path);
if (fd == -1)
return;
temp_sensors = (struct icx3_temp_sensors*) &data;
float cur_temp;
short cur_data;
for (int i=0; i<ICX3_NUM_TEMP_SENSORS; i++) {
/* endian swap */
cur_data = (short)(temp_sensors->data[2*i+1] << 8) | (short)(temp_sensors->data[2*i]);
/* temp is reported in tenths of deg C */
temps[i] = (float)cur_data/10;
}
}
void enable_write(int enable, struct card_info *card)
{
unsigned char *data;
if (enable)
data = icx3_write_enable;
else
data = icx3_write_disable;
/* Enable or disable write */
i2c_smbus_write_i2c_block_data(card->i2c_fd, ICX3_REG_ENABLEWRITE, ICX3_ENABLEWRITE_SIZE, data);
i2c_smbus_write_i2c_block_data(fd, ICX3_REG_ENABLEWRITE, ICX3_ENABLEWRITE_SIZE, data);
/* Read back the result to verify */
unsigned char read_result[ICX3_ENABLEWRITE_SIZE];
int write_ok = 0;
i2c_smbus_read_i2c_block_data(card->i2c_fd, ICX3_REG_ENABLEWRITE, ICX3_ENABLEWRITE_SIZE, read_result);
i2c_smbus_read_i2c_block_data(fd, ICX3_REG_ENABLEWRITE, ICX3_ENABLEWRITE_SIZE, read_result);
if (enable)
write_ok = (read_result[1] == 0xFC);
else
write_ok = (read_result[1] == 0xFE);
if (!write_ok)
printf("Unable to enable/disable write on %s\n", card->i2c_dev_path);
printf("Unable to enable/disable write on %s\n", i2c_dev_path);
}
/* Sets a given fan on the GPU according to a string setting
'auto' resets the fan to default (fans 1-2 go to GPU control, 3-4 to +0 RPM offset from GPU control)
A number without a sign (e.g. 50) manually sets the fan to a given % duty cycle
A number with a sign (e.g. +500) sets the fan to run at an RPM offset from GPU control */
void set_fan(int fan, char *setting, struct card_info *card)
void set_fan(int fan, char *setting, char *i2c_dev_path)
{
char fans_avail[ICX3_MAX_FANS] = {0};
@ -205,12 +213,16 @@ void set_fan(int fan, char *setting, struct card_info *card)
int write_result;
/* Check to make sure we're setting a valid fan */
get_available_fans(fans_avail, card);
get_available_fans(i2c_dev_path, fans_avail);
if (fans_avail[fan] == 0) {
printf("Fan %d does not exist on this card \n", fan);
return;
}
int fp = open_i2c_dev(i2c_dev_path);
if (fp == -1)
return;
fan_control.length = ICX3_FANCONTROL_SIZE - 1;
if (strcmp(setting, "auto") == 0) {
/* auto setting */
@ -228,15 +240,16 @@ void set_fan(int fan, char *setting, struct card_info *card)
fan_control.duty = atoi(setting);
}
enable_write(1, card);
enable_write(1, i2c_dev_path);
i2c_smbus_write_i2c_block_data(card->i2c_fd, reg, ICX3_FANCONTROL_SIZE, (char *)&fan_control);
i2c_smbus_write_i2c_block_data(fp, reg, ICX3_FANCONTROL_SIZE, (char *)&fan_control);
/* Read back data and verify we set the fan properly */
i2c_smbus_read_i2c_block_data(card->i2c_fd, reg, ICX3_FANCONTROL_SIZE, (char *)&fan_readback);
i2c_smbus_read_i2c_block_data(fp, reg, ICX3_FANCONTROL_SIZE, (char *)&fan_readback);
if (fan_readback.fanmode != fan_control.fanmode ||
fan_readback.rpm_offset != fan_control.rpm_offset ||
fan_readback.duty != fan_control.duty)
printf("Error setting fan %d on %s\n", fan, card->i2c_dev_path);
printf("Error setting fan %d on %s\n", fan, i2c_dev_path);
close(fp);
}

52
icx3.h
View File

@ -1,9 +1,3 @@
#ifndef ICX3_H
#define ICX3_H
#include <stdint.h>
#include "evga-card.h"
#define ICX3_I2C_ADDR 0x2D
#define ICX3_REG_FANCONTROL 80
@ -23,26 +17,26 @@
#define ICX3_WRITE_DISABLED 0xFE
struct icx3_fan_control {
uint8_t length;
uint8_t fanmode;
uint16_t rpm_offset;
uint8_t duty;
uint8_t duty_status;
uint16_t rpm_status;
unsigned char length;
unsigned char fanmode;
unsigned short rpm_offset;
unsigned char duty;
unsigned char duty_status;
unsigned short rpm_status;
};
struct icx3_temp_sensors {
uint8_t length;
uint8_t data[18];
unsigned char length;
unsigned char data[18];
};
struct icx3_info {
uint8_t length;
uint8_t reserved;
uint8_t slave_address;
uint8_t product_id;
uint8_t major_version;
uint8_t minor_version;
unsigned char length;
unsigned char reserved;
unsigned char slave_address;
unsigned char product_id;
unsigned char major_version;
unsigned char minor_version;
};
enum icx3_product_id {
@ -117,14 +111,10 @@ static char *icx3_temp_sensor_names[] = {
"PWR5",
};
int icx3_init(struct card_info *card);
void print_icx3_fans(struct card_info *card);
void print_icx3_fans_oneline(struct card_info *card);
void print_icx3_temps_oneline(struct card_info *card);
void get_available_fans(char *fans_avail, struct card_info *card);
void get_fan_status(struct icx3_fan_control *fans, struct card_info *card);
void get_temp_sensors(float *temps, struct card_info *card);
void enable_write(int enable, struct card_info *card);
void set_fan(int fan, char *setting, struct card_info *card);
#endif
enum icx3_product_id check_for_icx3(char *i2c_dev_path);
void print_icx3_fans(char *i2c_dev_path);
void print_icx3_temps(char *i2c_dev_path);
void get_available_fans(char *i2c_dev_path, char *fans_avail);
int open_i2c_dev(char *i2c_dev_path);
void enable_write(int enable, char *i2c_dev_path);
void set_fan(int fan, char *setting, char *i2c_dev_path);

16
makefile Normal file
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@ -0,0 +1,16 @@
.PHONY : clean debug
OBJS = evga-icx.o evga-card.o icx3.o
LDLIBS = -li2c
CFLAGS = -MD
evga-icx : $(OBJS)
debug : CFLAGS += -g -O0
debug : evga-icx
clean :
rm evga-icx $(OBJS)
rm *.d
-include $(OBJS:.o=.d)

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@ -1,95 +0,0 @@
#include <stdio.h>
#include "nvidia-sensors.h"
void init_nvml()
{
nvmlReturn_t result;
result = nvmlInit_v2();
if (result != NVML_SUCCESS)
printf("Could not init NVML: %s\n", nvmlErrorString(result));
}
void get_nvml_handle(struct card_info *card)
{
nvmlReturn_t result;
result = nvmlDeviceGetHandleByPciBusId_v2(card->pci_id, card->nvml_device);
if (result != NVML_SUCCESS) {
printf("Failed to get NVML device handle for card at %s: %s\n", card->pci_id, nvmlErrorString(result));
card->nvml_device = NULL;
}
}
void print_nvml_clock_reason(int compact, struct card_info *card)
{
unsigned long long reasons = get_nvml_clock_reasons(card);
int single_reason = 1;
for (int i = 0; i < (sizeof(clock_reason_names) / sizeof(struct clock_reason)); i++) {
if (reasons & clock_reason_names[i].mask) {
if (!single_reason) {
if (compact)
printf(",");
else
printf(", ");
}
single_reason = 0;
if (compact)
printf("%-15s", clock_reason_names[i].short_name);
else
printf("%s", clock_reason_names[i].long_name);
}
}
if (single_reason)
printf("None");
if (!compact)
printf(" (0x%llx)", reasons);
}
unsigned int get_nvml_temp(struct card_info *card)
{
if (card->nvml_device == NULL)
return 0;
unsigned int temp;
nvmlReturn_t result = nvmlDeviceGetTemperature(*(nvmlDevice_t*)(card->nvml_device), NVML_TEMPERATURE_GPU, &temp);
if (result != NVML_SUCCESS) {
printf("Failed to get temperature for card at %s: %s\n", card->pci_id, nvmlErrorString(result));
return 0;
}
return temp;
}
unsigned long long get_nvml_clock_reasons(struct card_info *card)
{
if (card->nvml_device == NULL)
return 0;
unsigned long long reasons;
nvmlReturn_t result = nvmlDeviceGetCurrentClocksEventReasons(*(nvmlDevice_t*)(card->nvml_device), &reasons) ;
if (result != NVML_SUCCESS) {
printf("Failed to get clock reasons for card at %s: %s\n", card->pci_id, nvmlErrorString(result));
return 0;
}
return reasons;
}
unsigned int get_nvml_mem_util(struct card_info *card)
{
if (card->nvml_device == NULL)
return 0;
nvmlUtilization_t util;
nvmlReturn_t result = nvmlDeviceGetUtilizationRates(*(nvmlDevice_t*)(card->nvml_device), &util);
if (result != NVML_SUCCESS) {
printf("Failed to get clock reasons for card at %s: %s\n", card->pci_id, nvmlErrorString(result));
return 0;
}
return util.memory;
}

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@ -1,29 +0,0 @@
#include <nvml.h>
#include "evga-card.h"
struct clock_reason {
unsigned long long mask;
char *short_name;
char *long_name;
};
static struct clock_reason clock_reason_names[] =
{
{nvmlClocksEventReasonGpuIdle, "Idle", "GPU idle"},
{nvmlClocksEventReasonApplicationsClocksSetting, "AppClk", "Application clocks"},
{nvmlClocksEventReasonSwPowerCap, "Pwr", "Power cap"},
{nvmlClocksThrottleReasonHwSlowdown, "HWSlow", "Hardware slowdown"},
{nvmlClocksEventReasonSyncBoost, "Sync", "Sync boost"},
{nvmlClocksEventReasonSwThermalSlowdown, "SWTherm", "Software thermal"},
{nvmlClocksThrottleReasonHwThermalSlowdown, "HWTherm", "Hardware thermal"},
{nvmlClocksThrottleReasonHwPowerBrakeSlowdown, "HWPower", "Hardware power brake"},
{nvmlClocksEventReasonDisplayClockSetting, "DispClk", "Display clock"}
};
void init_nvml();
void get_nvml_handle(struct card_info *card);
void print_nvml_clock_reason(int compact, struct card_info *card);
unsigned int get_nvml_temp(struct card_info *card);
unsigned long long get_nvml_clock_reasons(struct card_info *card);
unsigned int get_nvml_mem_util(struct card_info *card);

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@ -1,112 +0,0 @@
#include <stdio.h>
#include <unistd.h>
#include <cpuid.h>
#include <math.h>
#include <string.h>
#include <fcntl.h>
#include "zen3-rapl.h"
#define AMD_STRING "AuthenticAMD"
#define ZEN_FAMILY 0x17
#define ZEN3_FAMILY 0x19
#define MEASUREMENT_TIME 0.25
static float energy_unit = 0;
static int msr_file = -1;
static float package_power = 0.0;
static int check_zen()
{
unsigned int eax = 0, ebx = 0, ecx = 0, edx = 0, ext_family;
char vendor[13];
__get_cpuid(0, &eax, &ebx, &ecx, &edx);
memcpy(vendor, &ebx, 4);
memcpy(vendor+4, &edx, 4);
memcpy(vendor+8, &ecx, 4);
vendor[12] = 0;
if (strcmp(vendor, AMD_STRING) != 0){
return 0;
}
__get_cpuid(1, &eax, &ebx, &ecx, &edx);
ext_family = ((eax >> 8) & 0xF) + ((eax >> 20) & 0xFF);
if (ext_family != ZEN_FAMILY && ext_family != ZEN3_FAMILY){
return 0;
}
return 1;
}
static int read_msr(int file, unsigned int index, unsigned long long *data)
{
if (file < 0)
return 0;
return pread(file, data, sizeof *data, index) == sizeof *data;
}
static float get_energy_unit()
{
unsigned long long data;
// AMD OSRR: page 139 - MSRC001_0299
if (!read_msr(msr_file, 0xC0010299, &data))
return 0.0;
return pow(1.0/2.0, (float)((data >> 8) & 0x1F));
}
static unsigned long get_package_energy()
{
unsigned long long data;
// AMD OSRR: page 139 - MSRC001_029B
if (!read_msr(msr_file, 0xC001029B, &data))
return 0;
return data;
}
int init_rapl()
{
/* Check for supported Zen CPU */
if (!check_zen())
return 0;
/* Open MSR file */
char *msr_path = "/dev/cpu/0/msr";
msr_file = open(msr_path, O_RDONLY);
if (msr_file < 0)
return 0;
/* Energy unit */
energy_unit = get_energy_unit();
if (energy_unit == 0)
return 0;
return 1;
}
float get_rapl_package_power()
{
unsigned long package_eng_b = 0;
unsigned long package_eng_a = 0;
package_eng_b = get_package_energy();
usleep(MEASUREMENT_TIME*1000000);
package_eng_a = get_package_energy();
/* Only update if we computed a good power reading, otherwise return the most recent measurement */
if (package_eng_a >= package_eng_b)
package_power = (package_eng_a - package_eng_b) * energy_unit / MEASUREMENT_TIME;
return package_power;
}

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@ -1,6 +0,0 @@
#include "board-sensors.h"
static struct hwmon_avail_sensor rapl_sensor = {"Package power", -1, NULL, NULL};
int init_rapl();
float get_rapl_package_power();