RPCS3/rpcs3
1
0
Fork 0
mirror of https://github.com/RPCS3/rpcs3.git synced 2024-11-22 10:42:36 +01:00
Code Issues Releases Wiki Activity

vk/dma: Disable pasthrough DMA for NVIDIA+windows

Browse Source 
- The driver seems to cache page mapping as long as allocation has not been removed
- This is undesirable as we cannot stop the emulator to remove stale allocations every time a page is unmapped
This commit is contained in:
kd-11 2021-01-23 16:30:21 +03:00 committed by kd-11
parent 90ac9165e2
commit 22584fb2d1
1 changed files with 2 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
rpcs3/Emu/RSX/VK/VKDMA.cpp
View File

@ -225,24 +225,6 @@ namespace vk
bool test_host_pointer(u32 base_address, usz length)
{
#if 0 // Unusable due to vm locks
auto block = vm::get(vm::any, base_address);
ensure(block);
if ((block->addr + block->size) < (base_address + length))
{
return false;
}
if (block->flags & 0x120)
{
return true;
}
auto range_info = block->peek(base_address, u32(length));
return !!range_info.second;
#endif
#ifdef _WIN32
MEMORY_BASIC_INFORMATION mem_info;
if (!::VirtualQuery(vm::get_super_ptr<const void>(base_address), &mem_info, sizeof(mem_info)))
@ -263,7 +245,8 @@ namespace vk
#ifdef _WIN32
const bool allow_host_buffers = (vendor == driver_vendor::NVIDIA) ?
test_host_pointer(base_address, expected_length) :
//test_host_pointer(base_address, expected_length) :
rsx::get_location(base_address) == CELL_GCM_LOCATION_LOCAL : // NVIDIA workaround
true;
#else
// Anything running on AMDGPU kernel driver will not work due to the check for fd-backed memory allocations