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|
use std::io::Write;
use std::slice;
use std::{
os::raw::{c_char, c_uint},
ptr,
};
use crate::nvml::nvmlReturn_t;
macro_rules! stringify_nmvlreturn_t {
($x:ident => [ $($variant:ident),+ ]) => {
match $x {
$(
nvmlReturn_t::$variant => Some(concat!(stringify!($variant), "\0")),
)+
_ => None
}
}
}
#[cfg(debug_assertions)]
pub(crate) fn unimplemented() -> nvmlReturn_t {
unimplemented!()
}
#[cfg(not(debug_assertions))]
pub(crate) fn unimplemented() -> nvmlReturn_t {
nvmlReturn_t::NVML_ERROR_NOT_SUPPORTED
}
pub(crate) fn error_string(result: nvmlReturn_t) -> *const ::std::os::raw::c_char {
let text = stringify_nmvlreturn_t!(
result => [
NVML_SUCCESS,
NVML_ERROR_UNINITIALIZED,
NVML_ERROR_INVALID_ARGUMENT,
NVML_ERROR_NOT_SUPPORTED,
NVML_ERROR_NO_PERMISSION,
NVML_ERROR_ALREADY_INITIALIZED,
NVML_ERROR_NOT_FOUND,
NVML_ERROR_INSUFFICIENT_SIZE,
NVML_ERROR_INSUFFICIENT_POWER,
NVML_ERROR_DRIVER_NOT_LOADED,
NVML_ERROR_TIMEOUT,
NVML_ERROR_IRQ_ISSUE,
NVML_ERROR_LIBRARY_NOT_FOUND,
NVML_ERROR_FUNCTION_NOT_FOUND,
NVML_ERROR_CORRUPTED_INFOROM,
NVML_ERROR_GPU_IS_LOST,
NVML_ERROR_RESET_REQUIRED,
NVML_ERROR_OPERATING_SYSTEM,
NVML_ERROR_LIB_RM_VERSION_MISMATCH,
NVML_ERROR_IN_USE,
NVML_ERROR_MEMORY,
NVML_ERROR_NO_DATA,
NVML_ERROR_VGPU_ECC_NOT_SUPPORTED,
NVML_ERROR_INSUFFICIENT_RESOURCES,
NVML_ERROR_UNKNOWN
]
);
match text {
Some(text) => text.as_ptr() as *const _,
None => ptr::null(),
}
}
pub(crate) fn shutdown() -> nvmlReturn_t {
nvmlReturn_t::NVML_SUCCESS
}
static mut DEVICE: Option<ocl_core::DeviceId> = None;
pub(crate) fn init_v2() -> Result<(), nvmlReturn_t> {
let platforms = ocl_core::get_platform_ids()?;
let device = platforms.iter().find_map(|plat| {
let devices = ocl_core::get_device_ids(plat, Some(ocl_core::DeviceType::GPU), None).ok()?;
for dev in devices {
let vendor = ocl_core::get_device_info(dev, ocl_core::DeviceInfo::VendorId).ok()?;
match vendor {
ocl_core::DeviceInfoResult::VendorId(0x8086)
| ocl_core::DeviceInfoResult::VendorId(0x1002) => {}
_ => continue,
};
let dev_type = ocl_core::get_device_info(dev, ocl_core::DeviceInfo::Type).ok()?;
if let ocl_core::DeviceInfoResult::Type(ocl_core::DeviceType::GPU) = dev_type {
return Some(dev);
}
}
None
});
unsafe { DEVICE = device };
if device.is_some() {
Ok(())
} else {
Err(nvmlReturn_t::NVML_ERROR_UNKNOWN)
}
}
pub(crate) fn init_with_flags() -> Result<(), nvmlReturn_t> {
init_v2()
}
impl From<ocl_core::Error> for nvmlReturn_t {
fn from(_: ocl_core::Error) -> Self {
nvmlReturn_t::NVML_ERROR_UNKNOWN
}
}
impl From<Result<(), nvmlReturn_t>> for nvmlReturn_t {
fn from(result: Result<(), nvmlReturn_t>) -> Self {
match result {
Ok(()) => nvmlReturn_t::NVML_SUCCESS,
Err(e) => e,
}
}
}
struct CountingWriter<T: std::io::Write> {
pub base: T,
pub len: usize,
}
impl<T: std::io::Write> std::io::Write for CountingWriter<T> {
fn write(&mut self, buf: &[u8]) -> std::io::Result<usize> {
self.len += buf.len();
self.base.write(buf)
}
fn flush(&mut self) -> std::io::Result<()> {
self.base.flush()
}
}
pub(crate) fn system_get_driver_version(
version_ptr: *mut c_char,
length: c_uint,
) -> Result<(), nvmlReturn_t> {
if version_ptr == ptr::null_mut() {
return Err(nvmlReturn_t::NVML_ERROR_INVALID_ARGUMENT);
}
let device = match unsafe { DEVICE } {
Some(d) => d,
None => return Err(nvmlReturn_t::NVML_ERROR_UNINITIALIZED),
};
if let Ok(ocl_core::DeviceInfoResult::DriverVersion(driver_version)) =
ocl_core::get_device_info(device, ocl_core::DeviceInfo::DriverVersion)
{
let output_slice =
unsafe { slice::from_raw_parts_mut(version_ptr as *mut u8, (length - 1) as usize) };
let mut output_write = CountingWriter {
base: output_slice,
len: 0,
};
write!(&mut output_write, "{}", driver_version)
.map_err(|_| nvmlReturn_t::NVML_ERROR_UNKNOWN)?;
unsafe { *(version_ptr.add(output_write.len)) = 0 };
Ok(())
} else {
Err(nvmlReturn_t::NVML_ERROR_UNKNOWN)
}
}
|
