[Kernel] XMAInitializeContext physical buffer addresses

This commit is contained in:
Triang3l 2019-08-28 08:07:01 +03:00
parent 2f51949ece
commit 0ad1bd9ab4
1 changed files with 43 additions and 3 deletions

View File

@ -119,18 +119,58 @@ static_assert_size(XMA_CONTEXT_INIT, 56);
dword_result_t XMAInitializeContext(lpvoid_t context_ptr,
pointer_t<XMA_CONTEXT_INIT> context_init) {
// Input buffers may be null (buffer 1 in Tony Hawk's American Wasteland).
// Convert to host endianness.
uint32_t input_buffer_0_guest_ptr = context_init->input_buffer_0_ptr;
uint32_t input_buffer_0_physical_address = 0;
if (input_buffer_0_guest_ptr) {
input_buffer_0_physical_address =
kernel_memory()->GetPhysicalAddress(input_buffer_0_guest_ptr);
// Xenia-specific safety check.
assert_true(input_buffer_0_physical_address != UINT32_MAX);
if (input_buffer_0_physical_address == UINT32_MAX) {
XELOGE(
"XMAInitializeContext: Invalid input buffer 0 virtual address %.8X",
input_buffer_0_guest_ptr);
return X_E_FALSE;
}
}
uint32_t input_buffer_1_guest_ptr = context_init->input_buffer_1_ptr;
uint32_t input_buffer_1_physical_address = 0;
if (input_buffer_1_guest_ptr) {
input_buffer_1_physical_address =
kernel_memory()->GetPhysicalAddress(input_buffer_1_guest_ptr);
assert_true(input_buffer_1_physical_address != UINT32_MAX);
if (input_buffer_1_physical_address == UINT32_MAX) {
XELOGE(
"XMAInitializeContext: Invalid input buffer 1 virtual address %.8X",
input_buffer_1_guest_ptr);
return X_E_FALSE;
}
}
uint32_t output_buffer_guest_ptr = context_init->output_buffer_ptr;
assert_not_zero(output_buffer_guest_ptr);
uint32_t output_buffer_physical_address =
kernel_memory()->GetPhysicalAddress(output_buffer_guest_ptr);
assert_true(output_buffer_physical_address != UINT32_MAX);
if (output_buffer_physical_address == UINT32_MAX) {
XELOGE("XMAInitializeContext: Invalid output buffer virtual address %.8X",
output_buffer_guest_ptr);
return X_E_FALSE;
}
std::memset(context_ptr, 0, sizeof(XMA_CONTEXT_DATA));
XMA_CONTEXT_DATA context(context_ptr);
context.input_buffer_0_ptr = context_init->input_buffer_0_ptr;
context.input_buffer_0_ptr = input_buffer_0_physical_address;
context.input_buffer_0_packet_count =
context_init->input_buffer_0_packet_count;
context.input_buffer_1_ptr = context_init->input_buffer_1_ptr;
context.input_buffer_1_ptr = input_buffer_1_physical_address;
context.input_buffer_1_packet_count =
context_init->input_buffer_1_packet_count;
context.input_buffer_read_offset = context_init->input_buffer_read_offset;
context.output_buffer_ptr = context_init->output_buffer_ptr;
context.output_buffer_ptr = output_buffer_physical_address;
context.output_buffer_block_count = context_init->output_buffer_block_count;
// context.work_buffer = context_init->work_buffer; // ?