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-rw-r--r--src/core/hle/service/gsp_gpu.cpp97
1 files changed, 91 insertions, 6 deletions
diff --git a/src/core/hle/service/gsp_gpu.cpp b/src/core/hle/service/gsp_gpu.cpp
index 4c3ac845b..dcc1b6942 100644
--- a/src/core/hle/service/gsp_gpu.cpp
+++ b/src/core/hle/service/gsp_gpu.cpp
@@ -48,20 +48,42 @@ static inline InterruptRelayQueue* GetInterruptRelayQueue(u32 thread_id) {
return reinterpret_cast<InterruptRelayQueue*>(ptr.ValueOr(nullptr));
}
-static void WriteHWRegs(u32 base_address, u32 size_in_bytes, const u32* data) {
+/**
+ * Checks if the parameters in a register write call are valid and logs in the case that
+ * they are not
+ * @param base_address The first address in the sequence of registers that will be written
+ * @param size_in_bytes The number of registers that will be written
+ * @return true if the parameters are valid, false otherwise
+ */
+static bool CheckWriteParameters(u32 base_address, u32 size_in_bytes) {
// TODO: Return proper error codes
if (base_address + size_in_bytes >= 0x420000) {
LOG_ERROR(Service_GSP, "Write address out of range! (address=0x%08x, size=0x%08x)",
base_address, size_in_bytes);
- return;
+ return false;
}
// size should be word-aligned
if ((size_in_bytes % 4) != 0) {
LOG_ERROR(Service_GSP, "Invalid size 0x%08x", size_in_bytes);
- return;
+ return false;
}
+ return true;
+}
+
+/**
+ * Writes sequential GSP GPU hardware registers using an array of source data
+ *
+ * @param base_address The address of the first register in the sequence
+ * @param size_in_bytes The number of registers to update (size of data)
+ * @param data A pointer to the source data
+ */
+static void WriteHWRegs(u32 base_address, u32 size_in_bytes, const u32* data) {
+ // TODO: Return proper error codes
+ if (!CheckWriteParameters(base_address, size_in_bytes))
+ return;
+
while (size_in_bytes > 0) {
GPU::Write<u32>(base_address + 0x1EB00000, *data);
@@ -71,17 +93,80 @@ static void WriteHWRegs(u32 base_address, u32 size_in_bytes, const u32* data) {
}
}
-/// Write a GSP GPU hardware register
+/**
+ * GSP_GPU::WriteHWRegs service function
+ *
+ * Writes sequential GSP GPU hardware registers
+ *
+ * Inputs:
+ * 1 : address of first GPU register
+ * 2 : number of registers to write sequentially
+ * 4 : pointer to source data array
+ */
static void WriteHWRegs(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
u32 reg_addr = cmd_buff[1];
u32 size = cmd_buff[2];
- u32* src = (u32*)Memory::GetPointer(cmd_buff[0x4]);
+ u32* src = (u32*)Memory::GetPointer(cmd_buff[4]);
WriteHWRegs(reg_addr, size, src);
}
+/**
+ * Updates sequential GSP GPU hardware registers using parallel arrays of source data and masks.
+ * For each register, the value is updated only where the mask is high
+ *
+ * @param base_address The address of the first register in the sequence
+ * @param size_in_bytes The number of registers to update (size of data)
+ * @param data A pointer to the source data to use for updates
+ * @param masks A pointer to the masks
+ */
+static void WriteHWRegsWithMask(u32 base_address, u32 size_in_bytes, const u32* data, const u32* masks) {
+ // TODO: Return proper error codes
+ if (!CheckWriteParameters(base_address, size_in_bytes))
+ return;
+
+ while (size_in_bytes > 0) {
+ const u32 reg_address = base_address + 0x1EB00000;
+
+ u32 reg_value;
+ GPU::Read<u32>(reg_value, reg_address);
+
+ // Update the current value of the register only for set mask bits
+ reg_value = (reg_value & ~*masks) | (*data | *masks);
+
+ GPU::Write<u32>(reg_address, reg_value);
+
+ size_in_bytes -= 4;
+ ++data;
+ ++masks;
+ base_address += 4;
+ }
+}
+
+/**
+ * GSP_GPU::WriteHWRegsWithMask service function
+ *
+ * Updates sequential GSP GPU hardware registers using masks
+ *
+ * Inputs:
+ * 1 : address of first GPU register
+ * 2 : number of registers to update sequentially
+ * 4 : pointer to source data array
+ * 6 : pointer to mask array
+ */
+static void WriteHWRegsWithMask(Service::Interface* self) {
+ u32* cmd_buff = Kernel::GetCommandBuffer();
+ u32 reg_addr = cmd_buff[1];
+ u32 size = cmd_buff[2];
+
+ u32* src_data = (u32*)Memory::GetPointer(cmd_buff[4]);
+ u32* mask_data = (u32*)Memory::GetPointer(cmd_buff[6]);
+
+ WriteHWRegsWithMask(reg_addr, size, src_data, mask_data);
+}
+
/// Read a GSP GPU hardware register
static void ReadHWRegs(Service::Interface* self) {
u32* cmd_buff = Kernel::GetCommandBuffer();
@@ -350,7 +435,7 @@ static void TriggerCmdReqQueue(Service::Interface* self) {
const Interface::FunctionInfo FunctionTable[] = {
{0x00010082, WriteHWRegs, "WriteHWRegs"},
- {0x00020084, nullptr, "WriteHWRegsWithMask"},
+ {0x00020084, WriteHWRegsWithMask, "WriteHWRegsWithMask"},
{0x00030082, nullptr, "WriteHWRegRepeat"},
{0x00040080, ReadHWRegs, "ReadHWRegs"},
{0x00050200, SetBufferSwap, "SetBufferSwap"},