diff options
| author | bunnei <bunneidev@gmail.com> | 2022-11-18 13:18:36 -0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-11-18 13:18:36 -0800 |
| commit | 1fb33bd1e19fe0855072b08a91353a3b457fa85d (patch) | |
| tree | 3687b2c5e394843e4554b0e0ca733d840aca8720 /src/core/hle/kernel/svc.cpp | |
| parent | 405d685101e60e3b9f156250f2d462f7e7217a10 (diff) | |
| parent | 651f6598ac8a980700c330f382d711f7429571a8 (diff) | |
Merge pull request #9234 from liamwhite/data-cash-money
kernel: implement data cache management operations
Diffstat (limited to 'src/core/hle/kernel/svc.cpp')
| -rw-r--r-- | src/core/hle/kernel/svc.cpp | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp index 9962ad1711..e520cab470 100644 --- a/src/core/hle/kernel/svc.cpp +++ b/src/core/hle/kernel/svc.cpp @@ -2701,14 +2701,24 @@ static Result GetThreadList(Core::System& system, u32* out_num_threads, VAddr ou return ResultSuccess; } -static Result FlushProcessDataCache32([[maybe_unused]] Core::System& system, - [[maybe_unused]] Handle handle, [[maybe_unused]] u32 address, - [[maybe_unused]] u32 size) { - // Note(Blinkhawk): For emulation purposes of the data cache this is mostly a no-op, - // as all emulation is done in the same cache level in host architecture, thus data cache - // does not need flushing. - LOG_DEBUG(Kernel_SVC, "called"); - return ResultSuccess; +static Result FlushProcessDataCache32(Core::System& system, Handle process_handle, u64 address, + u64 size) { + // Validate address/size. + R_UNLESS(size > 0, ResultInvalidSize); + R_UNLESS(address == static_cast<uintptr_t>(address), ResultInvalidCurrentMemory); + R_UNLESS(size == static_cast<size_t>(size), ResultInvalidCurrentMemory); + + // Get the process from its handle. + KScopedAutoObject process = + system.Kernel().CurrentProcess()->GetHandleTable().GetObject<KProcess>(process_handle); + R_UNLESS(process.IsNotNull(), ResultInvalidHandle); + + // Verify the region is within range. + auto& page_table = process->PageTable(); + R_UNLESS(page_table.Contains(address, size), ResultInvalidCurrentMemory); + + // Perform the operation. + R_RETURN(system.Memory().FlushDataCache(*process, address, size)); } namespace { |