mirror of
https://github.com/RGBCube/serenity
synced 2025-05-20 23:25:07 +00:00
9ee098b119
Like the HID, Audio and Storage subsystem, the Graphics subsystem (which
handles GPUs technically) exposes unix device files (typically in /dev).
To ensure consistency across the repository, move all related files to a
new directory under Kernel/Devices called "GPU".
Also remove the redundant "GPU" word from the VirtIO driver directory,
and the word "Graphics" from GraphicsManagement.{h,cpp} filenames.
72 lines
2.8 KiB
C++
72 lines
2.8 KiB
C++
/*
|
|
* Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <Kernel/Bus/PCI/API.h>
|
|
#include <Kernel/Devices/GPU/Console/ContiguousFramebufferConsole.h>
|
|
#include <Kernel/Devices/GPU/Definitions.h>
|
|
#include <Kernel/Devices/GPU/Intel/NativeGraphicsAdapter.h>
|
|
#include <Kernel/Devices/GPU/Management.h>
|
|
#include <Kernel/Memory/PhysicalAddress.h>
|
|
|
|
namespace Kernel {
|
|
|
|
static constexpr u16 supported_models[] {
|
|
0x29c2, // Intel G35 Adapter
|
|
};
|
|
|
|
static bool is_supported_model(u16 device_id)
|
|
{
|
|
for (auto& id : supported_models) {
|
|
if (id == device_id)
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
ErrorOr<bool> IntelNativeGraphicsAdapter::probe(PCI::DeviceIdentifier const& pci_device_identifier)
|
|
{
|
|
return is_supported_model(pci_device_identifier.hardware_id().device_id);
|
|
}
|
|
|
|
ErrorOr<NonnullLockRefPtr<GenericGraphicsAdapter>> IntelNativeGraphicsAdapter::create(PCI::DeviceIdentifier const& pci_device_identifier)
|
|
{
|
|
auto adapter = TRY(adopt_nonnull_lock_ref_or_enomem(new (nothrow) IntelNativeGraphicsAdapter(pci_device_identifier)));
|
|
TRY(adapter->initialize_adapter());
|
|
return adapter;
|
|
}
|
|
|
|
ErrorOr<void> IntelNativeGraphicsAdapter::initialize_adapter()
|
|
{
|
|
dbgln_if(INTEL_GRAPHICS_DEBUG, "Intel Native Graphics Adapter @ {}", device_identifier().address());
|
|
auto bar0_space_size = PCI::get_BAR_space_size(device_identifier(), PCI::HeaderType0BaseRegister::BAR0);
|
|
auto bar2_space_size = PCI::get_BAR_space_size(device_identifier(), PCI::HeaderType0BaseRegister::BAR2);
|
|
dmesgln_pci(*this, "MMIO @ {}, space size is {:x} bytes", PhysicalAddress(PCI::get_BAR0(device_identifier())), bar0_space_size);
|
|
dmesgln_pci(*this, "framebuffer @ {}", PhysicalAddress(PCI::get_BAR2(device_identifier())));
|
|
|
|
using MMIORegion = IntelDisplayConnectorGroup::MMIORegion;
|
|
MMIORegion first_region { MMIORegion::BARAssigned::BAR0, PhysicalAddress(PCI::get_BAR0(device_identifier()) & PCI::bar_address_mask), bar0_space_size };
|
|
MMIORegion second_region { MMIORegion::BARAssigned::BAR2, PhysicalAddress(PCI::get_BAR2(device_identifier()) & PCI::bar_address_mask), bar2_space_size };
|
|
|
|
PCI::enable_bus_mastering(device_identifier());
|
|
PCI::enable_io_space(device_identifier());
|
|
PCI::enable_memory_space(device_identifier());
|
|
|
|
switch (device_identifier().hardware_id().device_id) {
|
|
case 0x29c2:
|
|
m_connector_group = TRY(IntelDisplayConnectorGroup::try_create({}, IntelGraphics::Generation::Gen4, first_region, second_region));
|
|
return {};
|
|
default:
|
|
return Error::from_errno(ENODEV);
|
|
}
|
|
}
|
|
|
|
IntelNativeGraphicsAdapter::IntelNativeGraphicsAdapter(PCI::DeviceIdentifier const& pci_device_identifier)
|
|
: GenericGraphicsAdapter()
|
|
, PCI::Device(const_cast<PCI::DeviceIdentifier&>(pci_device_identifier))
|
|
{
|
|
}
|
|
|
|
}
|