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author | Subv <subv2112@gmail.com> | 2018-01-07 07:50:55 +0100 |
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committer | bunnei <bunneidev@gmail.com> | 2018-01-07 23:11:47 +0100 |
commit | 0368324f7925fe5568072299a0206ec71afee865 (patch) | |
tree | 2050e904e2f1933bfadbc96d1a0bc698c39a08ce /src/core/hle/ipc.h | |
parent | IPC: Skip the entire u64 of the command id when receiving an IPC request. (diff) | |
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Diffstat (limited to 'src/core/hle/ipc.h')
-rw-r--r-- | src/core/hle/ipc.h | 129 |
1 files changed, 17 insertions, 112 deletions
diff --git a/src/core/hle/ipc.h b/src/core/hle/ipc.h index 4c21f5024..c2f481624 100644 --- a/src/core/hle/ipc.h +++ b/src/core/hle/ipc.h @@ -143,120 +143,25 @@ struct DataPayloadHeader { }; static_assert(sizeof(DataPayloadHeader) == 8, "DataPayloadRequest size is incorrect"); -struct DomainRequestMessageHeader { +struct DomainMessageHeader { union { - BitField<0, 8, u32_le> command; - BitField<16, 16, u32_le> size; + // Used when responding to an IPC request, Server -> Client. + struct { + u32_le num_objects; + INSERT_PADDING_WORDS(3); + }; + + // Used when performing an IPC request, Client -> Server. + struct { + union { + BitField<0, 8, u32_le> command; + BitField<16, 16, u32_le> size; + }; + u32_le object_id; + INSERT_PADDING_WORDS(2); + }; }; - u32_le object_id; - INSERT_PADDING_WORDS(2); -}; -static_assert(sizeof(DomainRequestMessageHeader) == 16, "DomainRequestMessageHeader size is incorrect"); - -struct DomainResponseMessageHeader { - u32_le num_objects; - INSERT_PADDING_WORDS(3); -}; -static_assert(sizeof(DomainResponseMessageHeader) == 16, "DomainResponseMessageHeader size is incorrect"); - -enum DescriptorType : u32 { - // Buffer related desciptors types (mask : 0x0F) - StaticBuffer = 0x02, - PXIBuffer = 0x04, - MappedBuffer = 0x08, - // Handle related descriptors types (mask : 0x30, but need to check for buffer related - // descriptors first ) - CopyHandle = 0x00, - MoveHandle = 0x10, - CallingPid = 0x20, -}; - -constexpr u32 MoveHandleDesc(u32 num_handles = 1) { - return MoveHandle | ((num_handles - 1) << 26); -} - -constexpr u32 CopyHandleDesc(u32 num_handles = 1) { - return CopyHandle | ((num_handles - 1) << 26); -} - -constexpr u32 CallingPidDesc() { - return CallingPid; -} - -constexpr bool IsHandleDescriptor(u32 descriptor) { - return (descriptor & 0xF) == 0x0; -} - -constexpr u32 HandleNumberFromDesc(u32 handle_descriptor) { - return (handle_descriptor >> 26) + 1; -} - -union StaticBufferDescInfo { - u32 raw; - BitField<0, 4, u32> descriptor_type; - BitField<10, 4, u32> buffer_id; - BitField<14, 18, u32> size; }; - -inline u32 StaticBufferDesc(size_t size, u8 buffer_id) { - StaticBufferDescInfo info{}; - info.descriptor_type.Assign(StaticBuffer); - info.buffer_id.Assign(buffer_id); - info.size.Assign(static_cast<u32>(size)); - return info.raw; -} - -/** - * @brief Creates a header describing a buffer to be sent over PXI. - * @param size Size of the buffer. Max 0x00FFFFFF. - * @param buffer_id The Id of the buffer. Max 0xF. - * @param is_read_only true if the buffer is read-only. If false, the buffer is considered to have - * read-write access. - * @return The created PXI buffer header. - * - * The next value is a phys-address of a table located in the BASE memregion. - */ -inline u32 PXIBufferDesc(u32 size, unsigned buffer_id, bool is_read_only) { - u32 type = PXIBuffer; - if (is_read_only) - type |= 0x2; - return type | (size << 8) | ((buffer_id & 0xF) << 4); -} - -enum MappedBufferPermissions : u32 { - R = 1, - W = 2, - RW = R | W, -}; - -union MappedBufferDescInfo { - u32 raw; - BitField<0, 4, u32> flags; - BitField<1, 2, MappedBufferPermissions> perms; - BitField<4, 28, u32> size; -}; - -inline u32 MappedBufferDesc(size_t size, MappedBufferPermissions perms) { - MappedBufferDescInfo info{}; - info.flags.Assign(MappedBuffer); - info.perms.Assign(perms); - info.size.Assign(static_cast<u32>(size)); - return info.raw; -} - -inline DescriptorType GetDescriptorType(u32 descriptor) { - // Note: Those checks must be done in this order - if (IsHandleDescriptor(descriptor)) - return (DescriptorType)(descriptor & 0x30); - - // handle the fact that the following descriptors can have rights - if (descriptor & MappedBuffer) - return MappedBuffer; - - if (descriptor & PXIBuffer) - return PXIBuffer; - - return StaticBuffer; -} +static_assert(sizeof(DomainMessageHeader) == 16, "DomainMessageHeader size is incorrect"); } // namespace IPC |