Commit graph

13 commits

Author SHA1 Message Date
Markus Wick 621f3f5f47 core: Make use of fastmem 2021-06-11 17:27:06 +02:00
Markus Wick 42a7c5d017 core/memory: Check our memory fallbacks for out-of-bound behavior.
This makes it by far harder to crash yuzu.

Also implement the 48bit masking of AARCH64 while touching this code.
2021-05-29 09:28:26 +02:00
Morph a745d87971 general: Fix various spelling errors 2021-01-02 10:23:41 -05:00
MerryMage 6d30745d77 memory: Remove MemoryHook 2021-01-01 11:34:38 +00:00
ReinUsesLisp b3587102d1 core/memory: Read and write page table atomically
Squash attributes into the pointer's integer, making them an uintptr_t
pair containing 2 bits at the bottom and then the pointer. These bits
are currently unused thanks to alignment requirements.

Configure Dynarmic to mask out these bits on pointer reads.

While we are at it, remove some unused attributes carried over from
Citra.

Read/Write and other hot functions use a two step unpacking process that
is less readable to stop MSVC from emitting an extra AND instruction in
the hot path:

 mov         rdi,rcx
 shr         rdx,0Ch
 mov         r8,qword ptr [rax+8]
 mov         rax,qword ptr [r8+rdx*8]
 mov         rdx,rax
-and         al,3
 and         rdx,0FFFFFFFFFFFFFFFCh
 je          Core::Memory::Memory::Impl::Read<unsigned char>
 mov         rax,qword ptr [vaddr]
 movzx       eax,byte ptr [rdx+rax]
2020-12-29 21:54:49 -03:00
Lioncash b3c8997829 page_table: Allow page tables to be moved
Makes page tables and virtual buffers able to be moved, but not copied,
making the interface more flexible.

Previously, with the destructor specified, but no move assignment or
constructor specified, they wouldn't be implicitly generated.
2020-11-17 20:08:20 -05:00
Lioncash 3cfd962ef4 page_table: Add missing doxygen parameters to Resize()
Resolves two -Wdocumentation warnings.
2020-11-17 19:45:20 -05:00
Lioncash 0890451c55 page_table: Remove unnecessary header inclusions
Prevents indirect inclusions for these headers.
2020-11-17 19:43:27 -05:00
Lioncash df72480395 common: Make use of [[nodiscard]] where applicable
Now that clang-format makes [[nodiscard]] attributes format sensibly, we
can apply them to several functions within the common library to allow
the compiler to complain about any misuses of the functions.
2020-08-15 17:17:52 -04:00
bunnei 4c1812ae37 common: page_table: Update to use VirtualBuffer and simplify. 2020-04-17 00:59:34 -04:00
Fernando Sahmkow 27cbb75e7c PageTable: move backing addresses to a children class as the CPU page table does not need them.
This PR aims to reduce the memory usage in the CPU page table by moving
GPU specific parameters into a child class. This saves 1Gb of Memory for
most games.
2020-03-14 09:43:57 -04:00
bunnei 22d3dfbcd4 gpu: Rewrite virtual memory manager using PageTable. 2019-03-20 22:36:02 -04:00
bunnei 93da8e0abf core: Move PageTable struct into Common. 2019-03-16 22:05:40 -04:00