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196 Commits (9f91ba1f7357c61dd2c7c3b437ea203d467fd400)

Author SHA1 Message Date
Liam 9f91ba1f73 arm: Implement native code execution backend 2 years ago
GPUCode 5938a9582a core: Respect memory permissions in Map 2 years ago
liamwhite d86e88a622
Merge pull request #11995 from FernandoS27/you-dont-need-the-new-iphone 
Revert PR #11806 and do a proper fix to the memory handling.
 2 years ago
Fernando Sahmkow f1806d237f Memory: Fix invalidation handling from the CPU/Services 2 years ago
Liam 2a255b2d61 kernel: add KPageTableBase 
Co-authored-by: Kelebek1 <eeeedddccc@hotmail.co.uk>
 2 years ago
liamwhite 689dc4a17b
Merge pull request #11155 from liamwhite/memory3 
memory: check page against address space size
 3 years ago
liamwhite d3da1e6517
Merge pull request #10990 from comex/ubsan 
Fixes and workarounds to make UBSan happier on macOS
 3 years ago
Liam 07f71e2620 memory: check page against address space size 3 years ago
Liam d144168442 memory: minimize dependency on process 3 years ago
comex d7c532d889 Fixes and workarounds to make UBSan happier on macOS 
There are still some other issues not addressed here, but it's a start.

Workarounds for false-positive reports:

- `RasterizerAccelerated`: Put a gigantic array behind a `unique_ptr`,
  because UBSan has a [hardcoded limit](https://stackoverflow.com/questions/64531383/c-runtime-error-using-fsanitize-undefined-object-has-a-possibly-invalid-vp)
  of how big it thinks objects can be, specifically when dealing with
  offset-to-top values used with multiple inheritance.  Hopefully this
  doesn't have a performance impact.

- `QueryCacheBase::QueryCacheBase`: Avoid an operation that UBSan thinks
  is UB even though it at least arguably isn't.  See the link in the
  comment for more information.

Fixes for correct reports:

- `PageTable`, `Memory`: Use `uintptr_t` values instead of pointers to
  avoid UB from pointer overflow (when pointer arithmetic wraps around
  the address space).

- `KScheduler::Reload`: `thread->GetOwnerProcess()` can be `nullptr`;
  avoid calling methods on it in this case.  (The existing code returns
  a garbage reference to a field, which is then passed into
  `LoadWatchpointArray`, and apparently it's never used, so it's
  harmless in practice but still triggers UBSan.)

- `KAutoObject::Close`: This function calls `this->Destroy()`, which
  overwrites the beginning of the object with junk (specifically a free
  list pointer).  Then it calls `this->UnregisterWithKernel()`.  UBSan
  complains about a type mismatch because the vtable has been
  overwritten, and I believe this is indeed UB.  `UnregisterWithKernel`
  also loads `m_kernel` from the 'freed' object, which seems to be
  technically safe (the overwriting doesn't extend as far as that
  field), but seems dubious.  Switch to a `static` method and load
  `m_kernel` in advance.
 3 years ago
Liam a85ce8ea56 k_process: PageTable -> GetPageTable 3 years ago
Kelebek1 6f7cb69c94 Use spans over guest memory where possible instead of copying data. 3 years ago
Fernando Sahmkow da440da9f5 Memory Tracking: Optimize tracking to only use atomic writes when contested with the host GPU 3 years ago
Fernando Sahmkow 47d0d292d5 MemoryTracking: Initial setup of atomic writes. 3 years ago
Fernando Sahmkow 6f90dff293 Address feedback, add CR notice, etc 3 years ago
Fernando Sahmkow 92da86290c Settings: add option to enable / disable reactive flushing 3 years ago
Fernando Sahmkow c6cac2ffaa GPU: Add Reactive flushing 3 years ago
Fernando Sahmkow 7e76c1642c Accuracy Normal: reduce accuracy further for perf improvements in Project Lime 3 years ago
Liam 41d99aa89d memory: rename global memory references to application memory 3 years ago
Liam fb49ec19c1 kernel: use KTypedAddress for addresses 3 years ago
Liam ceda2d280e general: rename CurrentProcess to ApplicationProcess 3 years ago
Merry dc7ab4c5d6 Revert "MemoryManager: use fastmem directly." 
This reverts commit af5ecb0b15.
 3 years ago
Liam f1a0ce0e70 memory: fix watchpoint use when fastmem is enabled 3 years ago
Fernando Sahmkow af5ecb0b15 MemoryManager: use fastmem directly. 3 years ago
Mai d5684dbe7d
Merge pull request #9415 from liamwhite/dc 
memory: correct semantics of data cache management operations
 3 years ago
Liam ed37192441 memory: correct semantics of data cache management operations 3 years ago
Liam 985ed1e160 memory: remove DEBUG_ASSERT pointer test 3 years ago
Liam 651f6598ac kernel: implement FlushProcessDataCache 3 years ago
Morph c7e079a5d4 general: Resolve -Wunused-lambda-capture and C5233 4 years ago
bunnei 47b8160666 core: device_memory: Templatize GetPointer(..). 4 years ago
Fernando Sahmkow 5a568b1655 MemoryManager: Fix errors popping out. 4 years ago
Kyle Kienapfel 14e9de6678 code: dodge PAGE_SIZE #define 
Some header files, specifically for OSX and Musl libc define PAGE_SIZE to be a number
This is great except in yuzu we're using PAGE_SIZE as a variable

Specific example
`static constexpr u64 PAGE_SIZE = u64(1) << PAGE_BITS;`

PAGE_SIZE PAGE_BITS PAGE_MASK are all similar variables.
Simply deleted the underscores, and then added YUZU_ prefix

Might be worth noting that there are multiple uses in different classes/namespaces
This list may not be exhaustive

Core::Memory   12 bits (4096)
QueryCacheBase 12 bits
ShaderCache    14 bits (16384)
TextureCache   20 bits (1048576, or 1MB)

Fixes #8779
 4 years ago
Andrea Pappacoda cdb240f3d4
chore: make yuzu REUSE compliant 
[REUSE] is a specification that aims at making file copyright
information consistent, so that it can be both human and machine
readable. It basically requires that all files have a header containing
copyright and licensing information. When this isn't possible, like
when dealing with binary assets, generated files or embedded third-party
dependencies, it is permitted to insert copyright information in the
`.reuse/dep5` file.

Oh, and it also requires that all the licenses used in the project are
present in the `LICENSES` folder, that's why the diff is so huge.
This can be done automatically with `reuse download --all`.

The `reuse` tool also contains a handy subcommand that analyzes the
project and tells whether or not the project is (still) compliant,
`reuse lint`.

Following REUSE has a few advantages over the current approach:

- Copyright information is easy to access for users / downstream
- Files like `dist/license.md` do not need to exist anymore, as
  `.reuse/dep5` is used instead
- `reuse lint` makes it easy to ensure that copyright information of
  files like binary assets / images is always accurate and up to date

To add copyright information of files that didn't have it I looked up
who committed what and when, for each file. As yuzu contributors do not
have to sign a CLA or similar I couldn't assume that copyright ownership
was of the "yuzu Emulator Project", so I used the name and/or email of
the commit author instead.

[REUSE]: https://reuse.software

Follow-up to 01cf05bc75
 4 years ago
Kelebek1 458da8a948 Project Andio 4 years ago
Liam 208ed712f4 core/debugger: memory breakpoint support 4 years ago
Liam fb4b3c127f core/debugger: Implement new GDB stub debugger 4 years ago
bunnei af04f8b8e9
Revert "Memory GPU <-> CPU: reduce infighting in the texture cache by adding CPU Cached memory." 4 years ago
Fernando Sahmkow a2d7b2f905 Memory: Don't protect reads on Normal accuracy. 4 years ago
bunnei c0e45a3c78 core: device_memory: Use memory size reported by KSystemControl. 
- That way, we can consolidate the memory layout to one place.
 4 years ago
Andrew Strelsky 4ce0a650d1
prevent access violation from iob in Memory::IsValidVirtualAddress 5 years ago
yzct12345 5f97f74a9a
memory: Address lioncash's review 5 years ago
yzct12345 70cc4c0f46
memory: Dedup Read and Write and fix logging bugs 5 years ago
yzct12345 e611f522c2
memory: Clean up CopyBlock too 5 years ago
yzct12345 4edfa6ad8f
memory: Address lioncash's review 5 years ago
yzct12345 6df9611059
memory: Clean up code 5 years ago
FernandoS27 5ba28325b2 General: Add settings for fastmem and disabling adress space check. 5 years ago
Markus Wick 621f3f5f47 core: Make use of fastmem 5 years ago
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.
 5 years ago
bunnei b4fc2e52a2 hle: kernel: Use host memory allocations for KSlabMemory. 
- There are some issues with the current workaround, we will just use host memory until we have a complete kernel memory implementation.
 5 years ago
bunnei 2a7eff57a8 hle: kernel: Rename Process to KProcess. 5 years ago