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authorLiam <byteslice@airmail.cc>2022-11-12 17:02:07 +0100
committerLiam <byteslice@airmail.cc>2022-11-12 17:27:04 +0100
commit651f6598ac8a980700c330f382d711f7429571a8 (patch)
tree4dcc480763f706a8584d113d27862d68d10aebc4 /src/core/hle/kernel/svc.cpp
parentcommon: add cache management functions (diff)
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Diffstat (limited to 'src/core/hle/kernel/svc.cpp')
-rw-r--r--src/core/hle/kernel/svc.cpp26
1 files changed, 18 insertions, 8 deletions
diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp
index 9962ad171..e520cab47 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 {