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|
use super::{stream, CUresult, GlobalState};
use std::{ffi::c_void, mem};
pub fn alloc_v2(dptr: *mut *mut c_void, bytesize: usize) -> Result<(), CUresult> {
let ptr = GlobalState::lock_current_context(|ctx| {
let dev = unsafe { &mut *ctx.device };
Ok::<_, CUresult>(dev.l0_context.mem_alloc_device(bytesize, 0, dev.base)?)
})??;
unsafe { *dptr = ptr };
Ok(())
}
pub fn copy_v2(dst: *mut c_void, src: *const c_void, bytesize: usize) -> Result<(), CUresult> {
GlobalState::lock_stream(stream::CU_STREAM_LEGACY, |stream| {
let cmd_list = stream.command_list()?;
unsafe { cmd_list.append_memory_copy_unsafe(dst, src, bytesize, None, &mut [])? };
stream.queue.execute_and_synchronize(cmd_list)?;
Ok::<_, CUresult>(())
})?
}
pub fn free_v2(ptr: *mut c_void) -> Result<(), CUresult> {
GlobalState::lock_current_context(|ctx| {
let dev = unsafe { &mut *ctx.device };
Ok::<_, CUresult>(dev.l0_context.mem_free(ptr)?)
})
.map_err(|_| CUresult::CUDA_ERROR_INVALID_VALUE)?
}
pub(crate) fn set_d32_v2(dst: *mut c_void, ui: u32, n: usize) -> Result<(), CUresult> {
GlobalState::lock_stream(stream::CU_STREAM_LEGACY, |stream| {
let cmd_list = stream.command_list()?;
unsafe {
cmd_list.append_memory_fill_unsafe(dst, &ui, mem::size_of::<u32>() * n, None, &mut [])
}?;
stream.queue.execute_and_synchronize(cmd_list)?;
Ok::<_, CUresult>(())
})?
}
pub(crate) fn set_d8_v2(dst: *mut c_void, uc: u8, n: usize) -> Result<(), CUresult> {
GlobalState::lock_stream(stream::CU_STREAM_LEGACY, |stream| {
let cmd_list = stream.command_list()?;
unsafe {
cmd_list.append_memory_fill_unsafe(dst, &uc, mem::size_of::<u8>() * n, None, &mut [])
}?;
stream.queue.execute_and_synchronize(cmd_list)?;
Ok::<_, CUresult>(())
})?
}
#[cfg(test)]
mod test {
use super::super::test::CudaDriverFns;
use super::super::CUresult;
use std::ptr;
cuda_driver_test!(alloc_without_ctx);
fn alloc_without_ctx<T: CudaDriverFns>() {
assert_eq!(T::cuInit(0), CUresult::CUDA_SUCCESS);
let mut mem = ptr::null_mut();
assert_eq!(
T::cuMemAlloc_v2(&mut mem, std::mem::size_of::<usize>()),
CUresult::CUDA_ERROR_INVALID_CONTEXT
);
assert_eq!(mem, ptr::null_mut());
}
cuda_driver_test!(alloc_with_ctx);
fn alloc_with_ctx<T: CudaDriverFns>() {
assert_eq!(T::cuInit(0), CUresult::CUDA_SUCCESS);
let mut ctx = ptr::null_mut();
assert_eq!(T::cuCtxCreate_v2(&mut ctx, 0, 0), CUresult::CUDA_SUCCESS);
let mut mem = ptr::null_mut();
assert_eq!(
T::cuMemAlloc_v2(&mut mem, std::mem::size_of::<usize>()),
CUresult::CUDA_SUCCESS
);
assert_ne!(mem, ptr::null_mut());
assert_eq!(T::cuCtxDestroy_v2(ctx), CUresult::CUDA_SUCCESS);
}
cuda_driver_test!(free_without_ctx);
fn free_without_ctx<T: CudaDriverFns>() {
assert_eq!(T::cuInit(0), CUresult::CUDA_SUCCESS);
let mut ctx = ptr::null_mut();
assert_eq!(T::cuCtxCreate_v2(&mut ctx, 0, 0), CUresult::CUDA_SUCCESS);
let mut mem = ptr::null_mut();
assert_eq!(
T::cuMemAlloc_v2(&mut mem, std::mem::size_of::<usize>()),
CUresult::CUDA_SUCCESS
);
assert_ne!(mem, ptr::null_mut());
assert_eq!(T::cuCtxDestroy_v2(ctx), CUresult::CUDA_SUCCESS);
assert_eq!(T::cuMemFree_v2(mem), CUresult::CUDA_ERROR_INVALID_VALUE);
}
}
|
