3 files changed, 26 insertions, 60 deletions

diff --git a/src/core/hle/service/nvdrv/devices/nvmap.cpp b/src/core/hle/service/nvdrv/devices/nvmap.cpp
index 968eaa175..94286e295 100644
--- a/src/core/hle/service/nvdrv/devices/nvmap.cpp
+++ b/src/core/hle/service/nvdrv/devices/nvmap.cpp
@@ -13,6 +13,7 @@
 #include "core/hle/kernel/k_process.h"
 #include "core/hle/service/nvdrv/core/container.h"
 #include "core/hle/service/nvdrv/core/nvmap.h"
+#include "core/hle/service/nvdrv/devices/ioctl_serialization.h"
 #include "core/hle/service/nvdrv/devices/nvmap.h"
 #include "core/memory.h"
 
@@ -31,17 +32,17 @@ NvResult nvmap::Ioctl1(DeviceFD fd, Ioctl command, std::span<const u8> input,
     case 0x1:
         switch (command.cmd) {
         case 0x1:
-            return IocCreate(input, output);
+            return Wrap1(&nvmap::IocCreate, input, output);
         case 0x3:
-            return IocFromId(input, output);
+            return Wrap1(&nvmap::IocFromId, input, output);
         case 0x4:
-            return IocAlloc(input, output);
+            return Wrap1(&nvmap::IocAlloc, input, output);
         case 0x5:
-            return IocFree(input, output);
+            return Wrap1(&nvmap::IocFree, input, output);
         case 0x9:
-            return IocParam(input, output);
+            return Wrap1(&nvmap::IocParam, input, output);
         case 0xe:
-            return IocGetId(input, output);
+            return Wrap1(&nvmap::IocGetId, input, output);
         default:
             break;
         }
@@ -69,9 +70,7 @@ NvResult nvmap::Ioctl3(DeviceFD fd, Ioctl command, std::span<const u8> input, st
 void nvmap::OnOpen(DeviceFD fd) {}
 void nvmap::OnClose(DeviceFD fd) {}
 
-NvResult nvmap::IocCreate(std::span<const u8> input, std::span<u8> output) {
-    IocCreateParams params;
-    std::memcpy(&params, input.data(), sizeof(params));
+NvResult nvmap::IocCreate(IocCreateParams& params) {
     LOG_DEBUG(Service_NVDRV, "called, size=0x{:08X}", params.size);
 
     std::shared_ptr<NvCore::NvMap::Handle> handle_description{};
@@ -85,13 +84,10 @@ NvResult nvmap::IocCreate(std::span<const u8> input, std::span<u8> output) {
     params.handle = handle_description->id;
     LOG_DEBUG(Service_NVDRV, "handle: {}, size: 0x{:X}", handle_description->id, params.size);
 
-    std::memcpy(output.data(), &params, sizeof(params));
     return NvResult::Success;
 }
 
-NvResult nvmap::IocAlloc(std::span<const u8> input, std::span<u8> output) {
-    IocAllocParams params;
-    std::memcpy(&params, input.data(), sizeof(params));
+NvResult nvmap::IocAlloc(IocAllocParams& params) {
     LOG_DEBUG(Service_NVDRV, "called, addr={:X}", params.address);
 
     if (!params.handle) {
@@ -133,14 +129,10 @@ NvResult nvmap::IocAlloc(std::span<const u8> input, std::span<u8> output) {
                                              handle_description->size,
                                              Kernel::KMemoryPermission::None, true, false)
                .IsSuccess());
-    std::memcpy(output.data(), &params, sizeof(params));
     return result;
 }
 
-NvResult nvmap::IocGetId(std::span<const u8> input, std::span<u8> output) {
-    IocGetIdParams params;
-    std::memcpy(&params, input.data(), sizeof(params));
-
+NvResult nvmap::IocGetId(IocGetIdParams& params) {
     LOG_DEBUG(Service_NVDRV, "called");
 
     // See the comment in FromId for extra info on this function
@@ -157,14 +149,10 @@ NvResult nvmap::IocGetId(std::span<const u8> input, std::span<u8> output) {
     }
 
     params.id = handle_description->id;
-    std::memcpy(output.data(), &params, sizeof(params));
     return NvResult::Success;
 }
 
-NvResult nvmap::IocFromId(std::span<const u8> input, std::span<u8> output) {
-    IocFromIdParams params;
-    std::memcpy(&params, input.data(), sizeof(params));
-
+NvResult nvmap::IocFromId(IocFromIdParams& params) {
     LOG_DEBUG(Service_NVDRV, "called, id:{}", params.id);
 
     // Handles and IDs are always the same value in nvmap however IDs can be used globally given the
@@ -188,16 +176,12 @@ NvResult nvmap::IocFromId(std::span<const u8> input, std::span<u8> output) {
         return result;
     }
     params.handle = handle_description->id;
-    std::memcpy(output.data(), &params, sizeof(params));
     return NvResult::Success;
 }
 
-NvResult nvmap::IocParam(std::span<const u8> input, std::span<u8> output) {
+NvResult nvmap::IocParam(IocParamParams& params) {
     enum class ParamTypes { Size = 1, Alignment = 2, Base = 3, Heap = 4, Kind = 5, Compr = 6 };
 
-    IocParamParams params;
-    std::memcpy(&params, input.data(), sizeof(params));
-
     LOG_DEBUG(Service_NVDRV, "called type={}", params.param);
 
     if (!params.handle) {
@@ -237,14 +221,10 @@ NvResult nvmap::IocParam(std::span<const u8> input, std::span<u8> output) {
         return NvResult::BadValue;
     }
 
-    std::memcpy(output.data(), &params, sizeof(params));
     return NvResult::Success;
 }
 
-NvResult nvmap::IocFree(std::span<const u8> input, std::span<u8> output) {
-    IocFreeParams params;
-    std::memcpy(&params, input.data(), sizeof(params));
-
+NvResult nvmap::IocFree(IocFreeParams& params) {
     LOG_DEBUG(Service_NVDRV, "called");
 
     if (!params.handle) {
@@ -267,7 +247,6 @@ NvResult nvmap::IocFree(std::span<const u8> input, std::span<u8> output) {
         // This is possible when there's internal dups or other duplicates.
     }
 
-    std::memcpy(output.data(), &params, sizeof(params));
     return NvResult::Success;
 }
 
diff --git a/src/core/hle/service/nvdrv/devices/nvmap.h b/src/core/hle/service/nvdrv/devices/nvmap.h
index 4c0cc71cd..049c11028 100644
--- a/src/core/hle/service/nvdrv/devices/nvmap.h
+++ b/src/core/hle/service/nvdrv/devices/nvmap.h
@@ -99,12 +99,12 @@ public:
     };
     static_assert(sizeof(IocGetIdParams) == 8, "IocGetIdParams has wrong size");
 
-    NvResult IocCreate(std::span<const u8> input, std::span<u8> output);
-    NvResult IocAlloc(std::span<const u8> input, std::span<u8> output);
-    NvResult IocGetId(std::span<const u8> input, std::span<u8> output);
-    NvResult IocFromId(std::span<const u8> input, std::span<u8> output);
-    NvResult IocParam(std::span<const u8> input, std::span<u8> output);
-    NvResult IocFree(std::span<const u8> input, std::span<u8> output);
+    NvResult IocCreate(IocCreateParams& params);
+    NvResult IocAlloc(IocAllocParams& params);
+    NvResult IocGetId(IocGetIdParams& params);
+    NvResult IocFromId(IocFromIdParams& params);
+    NvResult IocParam(IocParamParams& params);
+    NvResult IocFree(IocFreeParams& params);
 
 private:
     /// Id to use for the next handle that is created.
diff --git a/src/core/hle/service/nvnflinger/fb_share_buffer_manager.cpp b/src/core/hle/service/nvnflinger/fb_share_buffer_manager.cpp
index 2e29bc848..6dc327b8b 100644
--- a/src/core/hle/service/nvnflinger/fb_share_buffer_manager.cpp
+++ b/src/core/hle/service/nvnflinger/fb_share_buffer_manager.cpp
@@ -71,24 +71,17 @@ Result AllocateIoForProcessAddressSpace(Common::ProcessAddress* out_map_address,
     R_SUCCEED();
 }
 
-template <typename T>
-std::span<u8> SerializeIoc(T& params) {
-    return std::span(reinterpret_cast<u8*>(std::addressof(params)), sizeof(T));
-}
-
 Result CreateNvMapHandle(u32* out_nv_map_handle, Nvidia::Devices::nvmap& nvmap, u32 size) {
     // Create a handle.
-    Nvidia::Devices::nvmap::IocCreateParams create_in_params{
+    Nvidia::Devices::nvmap::IocCreateParams create_params{
         .size = size,
         .handle = 0,
     };
-    Nvidia::Devices::nvmap::IocCreateParams create_out_params{};
-    R_UNLESS(nvmap.IocCreate(SerializeIoc(create_in_params), SerializeIoc(create_out_params)) ==
-                 Nvidia::NvResult::Success,
+    R_UNLESS(nvmap.IocCreate(create_params) == Nvidia::NvResult::Success,
              VI::ResultOperationFailed);
 
     // Assign the output handle.
-    *out_nv_map_handle = create_out_params.handle;
+    *out_nv_map_handle = create_params.handle;
 
     // We succeeded.
     R_SUCCEED();
@@ -96,13 +89,10 @@ Result CreateNvMapHandle(u32* out_nv_map_handle, Nvidia::Devices::nvmap& nvmap,
 
 Result FreeNvMapHandle(Nvidia::Devices::nvmap& nvmap, u32 handle) {
     // Free the handle.
-    Nvidia::Devices::nvmap::IocFreeParams free_in_params{
+    Nvidia::Devices::nvmap::IocFreeParams free_params{
         .handle = handle,
     };
-    Nvidia::Devices::nvmap::IocFreeParams free_out_params{};
-    R_UNLESS(nvmap.IocFree(SerializeIoc(free_in_params), SerializeIoc(free_out_params)) ==
-                 Nvidia::NvResult::Success,
-             VI::ResultOperationFailed);
+    R_UNLESS(nvmap.IocFree(free_params) == Nvidia::NvResult::Success, VI::ResultOperationFailed);
 
     // We succeeded.
     R_SUCCEED();
@@ -111,7 +101,7 @@ Result FreeNvMapHandle(Nvidia::Devices::nvmap& nvmap, u32 handle) {
 Result AllocNvMapHandle(Nvidia::Devices::nvmap& nvmap, u32 handle, Common::ProcessAddress buffer,
                         u32 size) {
     // Assign the allocated memory to the handle.
-    Nvidia::Devices::nvmap::IocAllocParams alloc_in_params{
+    Nvidia::Devices::nvmap::IocAllocParams alloc_params{
         .handle = handle,
         .heap_mask = 0,
         .flags = {},
@@ -119,10 +109,7 @@ Result AllocNvMapHandle(Nvidia::Devices::nvmap& nvmap, u32 handle, Common::Proce
         .kind = 0,
         .address = GetInteger(buffer),
     };
-    Nvidia::Devices::nvmap::IocAllocParams alloc_out_params{};
-    R_UNLESS(nvmap.IocAlloc(SerializeIoc(alloc_in_params), SerializeIoc(alloc_out_params)) ==
-                 Nvidia::NvResult::Success,
-             VI::ResultOperationFailed);
+    R_UNLESS(nvmap.IocAlloc(alloc_params) == Nvidia::NvResult::Success, VI::ResultOperationFailed);
 
     // We succeeded.
     R_SUCCEED();