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use std::{
collections::hash_map, collections::HashMap, ffi::c_void, ffi::CStr, ffi::CString, mem,
os::raw::c_char, ptr, slice,
};
use super::{
device,
function::Function,
function::{FunctionData, LegacyArguments},
CUresult, GlobalState, HasLivenessCookie, LiveCheck,
};
use ptx;
pub type Module = LiveCheck<ModuleData>;
impl HasLivenessCookie for ModuleData {
#[cfg(target_pointer_width = "64")]
const COOKIE: usize = 0xf1313bd46505f98a;
#[cfg(target_pointer_width = "32")]
const COOKIE: usize = 0xbdbe3f15;
const LIVENESS_FAIL: CUresult = CUresult::CUDA_ERROR_INVALID_HANDLE;
fn try_drop(&mut self) -> Result<(), CUresult> {
Ok(())
}
}
pub struct ModuleData {
pub spirv: SpirvModule,
// This should be a Vec<>, but I'm feeling lazy
pub device_binaries: HashMap<device::Index, CompiledModule>,
}
pub struct SpirvModule {
pub binaries: Vec<u32>,
pub kernel_info: HashMap<String, ptx::KernelInfo>,
pub should_link_ptx_impl: Option<&'static [u8]>,
pub build_options: CString,
}
pub struct CompiledModule {
pub base: l0::Module<'static>,
pub kernels: HashMap<CString, Box<Function>>,
}
impl<L, T, E> From<ptx::ParseError<L, T, E>> for CUresult {
fn from(_: ptx::ParseError<L, T, E>) -> Self {
CUresult::CUDA_ERROR_INVALID_PTX
}
}
impl From<ptx::TranslateError> for CUresult {
fn from(_: ptx::TranslateError) -> Self {
CUresult::CUDA_ERROR_INVALID_PTX
}
}
impl SpirvModule {
pub fn new_raw<'a>(text: *const c_char) -> Result<Self, CUresult> {
let u8_text = unsafe { CStr::from_ptr(text) };
let ptx_text = u8_text
.to_str()
.map_err(|_| CUresult::CUDA_ERROR_INVALID_PTX)?;
Self::new(ptx_text)
}
pub fn new<'a>(ptx_text: &str) -> Result<Self, CUresult> {
let mut errors = Vec::new();
let ast = ptx::ModuleParser::new().parse(&mut errors, ptx_text)?;
let spirv_module = ptx::to_spirv_module(ast)?;
Ok(SpirvModule {
binaries: spirv_module.assemble(),
kernel_info: spirv_module.kernel_info,
should_link_ptx_impl: spirv_module.should_link_ptx_impl,
build_options: spirv_module.build_options,
})
}
pub fn compile<'a>(
&self,
ctx: &'a l0::Context,
dev: l0::Device,
) -> Result<l0::Module<'a>, CUresult> {
let byte_il = unsafe {
slice::from_raw_parts(
self.binaries.as_ptr() as *const u8,
self.binaries.len() * mem::size_of::<u32>(),
)
};
let l0_module = match self.should_link_ptx_impl {
None => l0::Module::build_spirv(ctx, dev, byte_il, Some(self.build_options.as_c_str())),
Some(ptx_impl) => {
l0::Module::build_link_spirv(
ctx,
dev,
&[ptx_impl, byte_il],
Some(self.build_options.as_c_str()),
)
.0
}
};
Ok(l0_module?)
}
}
pub fn get_function(
hfunc: *mut *mut Function,
hmod: *mut Module,
name: *const c_char,
) -> Result<(), CUresult> {
if hfunc == ptr::null_mut() || hmod == ptr::null_mut() || name == ptr::null() {
return Err(CUresult::CUDA_ERROR_INVALID_VALUE);
}
let name = unsafe { CStr::from_ptr(name) }.to_owned();
let function: *mut Function = GlobalState::lock_current_context(|ctx| {
let module = unsafe { &mut *hmod }.as_result_mut()?;
let device = unsafe { &mut *ctx.device };
let compiled_module = match module.device_binaries.entry(device.index) {
hash_map::Entry::Occupied(entry) => entry.into_mut(),
hash_map::Entry::Vacant(entry) => {
let new_module = CompiledModule {
base: module.spirv.compile(&mut device.l0_context, device.base)?,
kernels: HashMap::new(),
};
entry.insert(new_module)
}
};
let kernel = match compiled_module.kernels.entry(name) {
hash_map::Entry::Occupied(entry) => entry.into_mut().as_mut(),
hash_map::Entry::Vacant(entry) => {
let kernel_info = module
.spirv
.kernel_info
.get(unsafe {
std::str::from_utf8_unchecked(entry.key().as_c_str().to_bytes())
})
.ok_or(CUresult::CUDA_ERROR_NOT_FOUND)?;
let kernel =
l0::Kernel::new_resident(&compiled_module.base, entry.key().as_c_str())?;
kernel.set_indirect_access(
l0::sys::ze_kernel_indirect_access_flags_t::ZE_KERNEL_INDIRECT_ACCESS_FLAG_DEVICE
| l0::sys::ze_kernel_indirect_access_flags_t::ZE_KERNEL_INDIRECT_ACCESS_FLAG_HOST
| l0::sys::ze_kernel_indirect_access_flags_t::ZE_KERNEL_INDIRECT_ACCESS_FLAG_SHARED
)?;
entry.insert(Box::new(Function::new(FunctionData {
base: kernel,
arg_size: kernel_info.arguments_sizes.clone(),
use_shared_mem: kernel_info.uses_shared_mem,
properties: None,
legacy_args: LegacyArguments::new(),
})))
}
};
Ok::<_, CUresult>(kernel as *mut _)
})??;
unsafe { *hfunc = function };
Ok(())
}
pub(crate) fn load_data(pmod: *mut *mut Module, image: *const c_void) -> Result<(), CUresult> {
let spirv_data = SpirvModule::new_raw(image as *const _)?;
load_data_impl(pmod, spirv_data)
}
pub fn load_data_impl(pmod: *mut *mut Module, spirv_data: SpirvModule) -> Result<(), CUresult> {
let module = GlobalState::lock_current_context(|ctx| {
let device = unsafe { &mut *ctx.device };
let l0_module = spirv_data.compile(&device.l0_context, device.base)?;
let mut device_binaries = HashMap::new();
let compiled_module = CompiledModule {
base: l0_module,
kernels: HashMap::new(),
};
device_binaries.insert(device.index, compiled_module);
let module_data = ModuleData {
spirv: spirv_data,
device_binaries,
};
Ok::<_, CUresult>(module_data)
})??;
let module_ptr = Box::into_raw(Box::new(Module::new(module)));
unsafe { *pmod = module_ptr };
Ok(())
}
pub(crate) fn unload(module: *mut Module) -> Result<(), CUresult> {
if module == ptr::null_mut() {
return Err(CUresult::CUDA_ERROR_INVALID_VALUE);
}
GlobalState::lock(|_| Module::destroy_impl(module))?
}
pub(crate) fn load(pmod: *mut *mut Module, fname: *const i8) -> Result<(), CUresult> {
if pmod == ptr::null_mut() || fname == ptr::null() {
return Err(CUresult::CUDA_ERROR_INVALID_VALUE);
}
let path = unsafe { CStr::from_ptr(fname) };
let path_utf8 = path
.to_str()
.map_err(|_| CUresult::CUDA_ERROR_INVALID_VALUE)?;
let file = std::fs::read(path_utf8).map_err(|_| CUresult::CUDA_ERROR_FILE_NOT_FOUND)?;
let module_text = std::str::from_utf8(&file).map_err(|_| CUresult::CUDA_ERROR_INVALID_PTX)?;
let spirv_data = SpirvModule::new(module_text)?;
load_data_impl(pmod, spirv_data)
}
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