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Kernel/Graphics: Apply DisplayConnector design on the VirtIO driver

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Liav A 2022-04-30 13:56:29 +03:00 • committed by Andreas Kling
parent 4ff6150f1b
commit c27c414ed1
13 changed files with 729 additions and 886 deletions
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26
Kernel/Graphics/VirtIOGPU/GPU3DDevice.h
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@ -9,7 +9,6 @@
#include <AK/DistinctNumeric.h>
#include <Kernel/Devices/CharacterDevice.h>
#include <Kernel/Devices/DeviceManagement.h>
#include <Kernel/Graphics/VirtIOGPU/FramebufferDevice.h>
#include <Kernel/Graphics/VirtIOGPU/Protocol.h>
namespace Kernel::Graphics::VirtIOGPU {
@ -87,18 +86,23 @@ union ClearType {
u32 value;
};
class GPU3DDevice : public CharacterDevice {
friend class Kernel::DeviceManagement;
}
namespace Kernel {
class VirtIOGraphicsAdapter;
class VirtIOGPU3DDevice : public CharacterDevice {
friend class DeviceManagement;
public:
static NonnullRefPtr<GPU3DDevice> must_create(GraphicsAdapter&);
static NonnullRefPtr<VirtIOGPU3DDevice> must_create(VirtIOGraphicsAdapter const&);
private:
GPU3DDevice(GraphicsAdapter& graphics_adapter, NonnullOwnPtr<Memory::Region> transfer_buffer_region);
VirtIOGPU3DDevice(VirtIOGraphicsAdapter const& graphics_adapter, NonnullOwnPtr<Memory::Region> transfer_buffer_region);
class PerContextState : public RefCounted<PerContextState> {
public:
static ErrorOr<RefPtr<PerContextState>> try_create(ContextID context_id)
static ErrorOr<RefPtr<PerContextState>> try_create(Graphics::VirtIOGPU::ContextID context_id)
{
auto region_result = TRY(MM.allocate_kernel_region(
NUM_TRANSFER_REGION_PAGES * PAGE_SIZE,
@ -107,13 +111,13 @@ private:
AllocationStrategy::AllocateNow));
return TRY(adopt_nonnull_ref_or_enomem(new (nothrow) PerContextState(context_id, move(region_result))));
}
ContextID context_id() { return m_context_id; }
Graphics::VirtIOGPU::ContextID context_id() { return m_context_id; }
Memory::Region& transfer_buffer_region() { return *m_transfer_buffer_region; }
private:
PerContextState() = delete;
explicit PerContextState(ContextID context_id, OwnPtr<Memory::Region> transfer_buffer_region);
ContextID m_context_id;
explicit PerContextState(Graphics::VirtIOGPU::ContextID context_id, OwnPtr<Memory::Region> transfer_buffer_region);
Graphics::VirtIOGPU::ContextID m_context_id;
OwnPtr<Memory::Region> m_transfer_buffer_region;
};
@ -129,9 +133,9 @@ private:
private:
ErrorOr<RefPtr<PerContextState>> get_context_for_description(OpenFileDescription&);
Kernel::Graphics::VirtIOGPU::GraphicsAdapter& m_graphics_adapter;
NonnullRefPtr<VirtIOGraphicsAdapter> m_graphics_adapter;
// Context used for kernel operations (e.g. flushing resources to scanout)
ContextID m_kernel_context_id;
Graphics::VirtIOGPU::ContextID m_kernel_context_id;
HashMap<OpenFileDescription*, RefPtr<PerContextState>> m_context_state_lookup;
// Memory management for backing buffers
NonnullOwnPtr<Memory::Region> m_transfer_buffer_region;