diff options
Diffstat (limited to 'dev/Kernel/HALKit/AMD64/Storage/SATA.cc')
| -rw-r--r-- | dev/Kernel/HALKit/AMD64/Storage/SATA.cc | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/dev/Kernel/HALKit/AMD64/Storage/SATA.cc b/dev/Kernel/HALKit/AMD64/Storage/SATA.cc index 26391340..00ef8767 100644 --- a/dev/Kernel/HALKit/AMD64/Storage/SATA.cc +++ b/dev/Kernel/HALKit/AMD64/Storage/SATA.cc @@ -184,8 +184,13 @@ static Kernel::Void drv_std_input_output(Kernel::UInt64 lba, Kernel::UInt8* buff if (slot == -1) return; + if (size_buffer > mib_cast(4)) + Kernel::ke_panic(RUNTIME_CHECK_FAILED, "AHCI only supports < 4mb DMA transfers."); + HbaCmdHeader* command_header = ((HbaCmdHeader*)((Kernel::UInt64)kSATAPort->Ports[kSATAPortIdx].Clb + kSATAPort->Ports[kSATAPortIdx].Clbu)); + command_header += slot; + Kernel::rt_set_memory(reinterpret_cast<Kernel::VoidPtr>(command_header), 0, sizeof(HbaCmdHeader)); MUST_PASS(command_header); @@ -200,10 +205,10 @@ static Kernel::Void drv_std_input_output(Kernel::UInt64 lba, Kernel::UInt8* buff MUST_PASS(command_table); - command_table->Prdt[0].Dba = ((Kernel::UInt32)(Kernel::UInt64)Kernel::HAL::hal_get_phys_address(buffer)); - command_table->Prdt[0].Dbau = (((Kernel::UInt64)Kernel::HAL::hal_get_phys_address(buffer) >> 32)); - command_table->Prdt[0].Dbc = ((size_buffer)-1); - command_table->Prdt[0].InterruptBit = 1; + command_table->Prdt[0].Dba = ((Kernel::UInt32)(Kernel::UInt64)Kernel::HAL::hal_get_phys_address(buffer)); + command_table->Prdt[0].Dbau = (((Kernel::UInt64)Kernel::HAL::hal_get_phys_address(buffer) >> 32)); + command_table->Prdt[0].Dbc = ((size_buffer)-1); + command_table->Prdt[0].IE = 1; command_header->Ctba = ((Kernel::UInt32)(Kernel::UInt64)command_table); command_header->Ctbau = ((Kernel::UInt32)((Kernel::UInt64)command_table >> 32)); |