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Kernel/IntelGraphics: Add Generation enum to the Definitions file

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This will be used to annotate which Generation is being used for each
Intel iGPU we discover.
This commit is contained in:
Liav A 2022-04-08 11:31:16 +03:00 • committed by Andrew Kaster
parent 8042ae43c3
commit e393071a9b
4 changed files with 13 additions and 12 deletions
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5
Kernel/Graphics/Intel/Definitions.h
View file

@ -10,6 +10,11 @@
namespace Kernel::IntelGraphics { namespace Kernel::IntelGraphics {
enum class Generation {
Gen4,
Gen9,
};
struct PLLSettings; struct PLLSettings;
struct PLLParameterLimit { struct PLLParameterLimit {

8
Kernel/Graphics/Intel/DisplayConnectorGroup.cpp
View file

@ -122,7 +122,7 @@ Optional<IntelGraphics::PLLSettings> IntelDisplayConnectorGroup::create_pll_sett
return {}; return {};
} }
ErrorOr<NonnullLockRefPtr<IntelDisplayConnectorGroup>> IntelDisplayConnectorGroup::try_create(Badge<IntelNativeGraphicsAdapter>, Generation generation, MMIORegion const& first_region, MMIORegion const& second_region) ErrorOr<NonnullLockRefPtr<IntelDisplayConnectorGroup>> IntelDisplayConnectorGroup::try_create(Badge<IntelNativeGraphicsAdapter>, IntelGraphics::Generation generation, MMIORegion const& first_region, MMIORegion const& second_region)
{ {
auto registers_region = TRY(MM.allocate_kernel_region(first_region.pci_bar_paddr, first_region.pci_bar_space_length, "Intel Native Graphics Registers"sv, Memory::Region::Access::ReadWrite)); auto registers_region = TRY(MM.allocate_kernel_region(first_region.pci_bar_paddr, first_region.pci_bar_space_length, "Intel Native Graphics Registers"sv, Memory::Region::Access::ReadWrite));
// NOTE: 0x5100 is the offset of the start of the GMBus registers // NOTE: 0x5100 is the offset of the start of the GMBus registers
@ -132,7 +132,7 @@ ErrorOr<NonnullLockRefPtr<IntelDisplayConnectorGroup>> IntelDisplayConnectorGrou
return connector_group; return connector_group;
} }
IntelDisplayConnectorGroup::IntelDisplayConnectorGroup(Generation generation, NonnullOwnPtr<GMBusConnector> gmbus_connector, NonnullOwnPtr<Memory::Region> registers_region, MMIORegion const& first_region, MMIORegion const& second_region) IntelDisplayConnectorGroup::IntelDisplayConnectorGroup(IntelGraphics::Generation generation, NonnullOwnPtr<GMBusConnector> gmbus_connector, NonnullOwnPtr<Memory::Region> registers_region, MMIORegion const& first_region, MMIORegion const& second_region)
: m_mmio_first_region(first_region) : m_mmio_first_region(first_region)
, m_mmio_second_region(second_region) , m_mmio_second_region(second_region)
, m_assigned_mmio_registers_region(m_mmio_first_region) , m_assigned_mmio_registers_region(m_mmio_first_region)
@ -172,7 +172,7 @@ ErrorOr<void> IntelDisplayConnectorGroup::initialize_connectors()
// NOTE: Intel Graphics Generation 4 is pretty ancient beast, and we should not // NOTE: Intel Graphics Generation 4 is pretty ancient beast, and we should not
// assume we can find a VBT for it. Just initialize the (assumed) CRT connector and be done with it. // assume we can find a VBT for it. Just initialize the (assumed) CRT connector and be done with it.
if (m_generation == Generation::Gen4) { if (m_generation == IntelGraphics::Generation::Gen4) {
TRY(initialize_gen4_connectors()); TRY(initialize_gen4_connectors());
} else { } else {
VERIFY_NOT_REACHED(); VERIFY_NOT_REACHED();
@ -232,7 +232,7 @@ ErrorOr<void> IntelDisplayConnectorGroup::set_mode_setting(IntelNativeDisplayCon
DisplayConnector::ModeSetting actual_mode_setting = mode_setting; DisplayConnector::ModeSetting actual_mode_setting = mode_setting;
actual_mode_setting.horizontal_stride = actual_mode_setting.horizontal_active * sizeof(u32); actual_mode_setting.horizontal_stride = actual_mode_setting.horizontal_active * sizeof(u32);
VERIFY(actual_mode_setting.horizontal_stride != 0); VERIFY(actual_mode_setting.horizontal_stride != 0);
if (m_generation == Generation::Gen4) { if (m_generation == IntelGraphics::Generation::Gen4) {
TRY(set_gen4_mode_setting(connector, actual_mode_setting)); TRY(set_gen4_mode_setting(connector, actual_mode_setting));
} else { } else {
VERIFY_NOT_REACHED(); VERIFY_NOT_REACHED();

9
Kernel/Graphics/Intel/DisplayConnectorGroup.h
View file

@ -25,9 +25,6 @@ class IntelDisplayConnectorGroup : public RefCounted<IntelDisplayConnectorGroup>
friend class IntelNativeGraphicsAdapter; friend class IntelNativeGraphicsAdapter;
public: public:
enum class Generation {
Gen4,
};
struct MMIORegion { struct MMIORegion {
enum class BARAssigned { enum class BARAssigned {
BAR0, BAR0,
@ -47,13 +44,13 @@ private:
}; };
public: public:
static ErrorOr<NonnullLockRefPtr<IntelDisplayConnectorGroup>> try_create(Badge<IntelNativeGraphicsAdapter>, Generation, MMIORegion const&, MMIORegion const&); static ErrorOr<NonnullLockRefPtr<IntelDisplayConnectorGroup>> try_create(Badge<IntelNativeGraphicsAdapter>, IntelGraphics::Generation, MMIORegion const&, MMIORegion const&);
ErrorOr<void> set_safe_mode_setting(Badge<IntelNativeDisplayConnector>, IntelNativeDisplayConnector&); ErrorOr<void> set_safe_mode_setting(Badge<IntelNativeDisplayConnector>, IntelNativeDisplayConnector&);
ErrorOr<void> set_mode_setting(Badge<IntelNativeDisplayConnector>, IntelNativeDisplayConnector&, DisplayConnector::ModeSetting const&); ErrorOr<void> set_mode_setting(Badge<IntelNativeDisplayConnector>, IntelNativeDisplayConnector&, DisplayConnector::ModeSetting const&);
private: private:
IntelDisplayConnectorGroup(Generation generation, NonnullOwnPtr<GMBusConnector>, NonnullOwnPtr<Memory::Region> registers_region, MMIORegion const&, MMIORegion const&); IntelDisplayConnectorGroup(IntelGraphics::Generation generation, NonnullOwnPtr<GMBusConnector>, NonnullOwnPtr<Memory::Region> registers_region, MMIORegion const&, MMIORegion const&);
ErrorOr<void> set_mode_setting(IntelNativeDisplayConnector&, DisplayConnector::ModeSetting const&); ErrorOr<void> set_mode_setting(IntelNativeDisplayConnector&, DisplayConnector::ModeSetting const&);
@ -95,7 +92,7 @@ private:
const MMIORegion m_mmio_second_region; const MMIORegion m_mmio_second_region;
MMIORegion const& m_assigned_mmio_registers_region; MMIORegion const& m_assigned_mmio_registers_region;
const Generation m_generation; const IntelGraphics::Generation m_generation;
NonnullOwnPtr<Memory::Region> m_registers_region; NonnullOwnPtr<Memory::Region> m_registers_region;
NonnullOwnPtr<GMBusConnector> m_gmbus_connector; NonnullOwnPtr<GMBusConnector> m_gmbus_connector;
}; };

3
Kernel/Graphics/Intel/NativeGraphicsAdapter.cpp
View file

@ -54,10 +54,9 @@ ErrorOr<void> IntelNativeGraphicsAdapter::initialize_adapter()
PCI::enable_io_space(device_identifier()); PCI::enable_io_space(device_identifier());
PCI::enable_memory_space(device_identifier()); PCI::enable_memory_space(device_identifier());
using Generation = IntelDisplayConnectorGroup::Generation;
switch (device_identifier().hardware_id().device_id) { switch (device_identifier().hardware_id().device_id) {
case 0x29c2: case 0x29c2:
m_connector_group = TRY(IntelDisplayConnectorGroup::try_create({}, Generation::Gen4, first_region, second_region)); m_connector_group = TRY(IntelDisplayConnectorGroup::try_create({}, IntelGraphics::Generation::Gen4, first_region, second_region));
return {}; return {};
default: default:
return Error::from_errno(ENODEV); return Error::from_errno(ENODEV);