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path: root/MdeModulePkg/Bus/Pci/PciBusDxe/PciHotPlugSupport.c
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Diffstat (limited to 'MdeModulePkg/Bus/Pci/PciBusDxe/PciHotPlugSupport.c')
-rw-r--r--MdeModulePkg/Bus/Pci/PciBusDxe/PciHotPlugSupport.c121
1 files changed, 57 insertions, 64 deletions
diff --git a/MdeModulePkg/Bus/Pci/PciBusDxe/PciHotPlugSupport.c b/MdeModulePkg/Bus/Pci/PciBusDxe/PciHotPlugSupport.c
index 0dc8ec23b0..810867a200 100644
--- a/MdeModulePkg/Bus/Pci/PciBusDxe/PciHotPlugSupport.c
+++ b/MdeModulePkg/Bus/Pci/PciBusDxe/PciHotPlugSupport.c
@@ -13,7 +13,6 @@ EFI_HPC_LOCATION *gPciRootHpcPool = NULL;
UINTN gPciRootHpcCount = 0;
ROOT_HPC_DATA *gPciRootHpcData = NULL;
-
/**
Event notification function to set Hot Plug controller status.
@@ -24,14 +23,14 @@ ROOT_HPC_DATA *gPciRootHpcData = NULL;
VOID
EFIAPI
PciHPCInitialized (
- IN EFI_EVENT Event,
- IN VOID *Context
+ IN EFI_EVENT Event,
+ IN VOID *Context
)
{
- ROOT_HPC_DATA *HpcData;
+ ROOT_HPC_DATA *HpcData;
- HpcData = (ROOT_HPC_DATA *) Context;
- HpcData->Initialized = TRUE;
+ HpcData = (ROOT_HPC_DATA *)Context;
+ HpcData->Initialized = TRUE;
}
/**
@@ -46,12 +45,12 @@ PciHPCInitialized (
**/
BOOLEAN
EfiCompareDevicePath (
- IN EFI_DEVICE_PATH_PROTOCOL *DevicePath1,
- IN EFI_DEVICE_PATH_PROTOCOL *DevicePath2
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath1,
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath2
)
{
- UINTN Size1;
- UINTN Size2;
+ UINTN Size1;
+ UINTN Size2;
Size1 = GetDevicePathSize (DevicePath1);
Size2 = GetDevicePathSize (DevicePath2);
@@ -100,7 +99,7 @@ InitializeHotPlugSupport (
Status = gBS->LocateProtocol (
&gEfiPciHotPlugInitProtocolGuid,
NULL,
- (VOID **) &gPciHotPlugInit
+ (VOID **)&gPciHotPlugInit
);
if (EFI_ERROR (Status)) {
@@ -114,10 +113,9 @@ InitializeHotPlugSupport (
);
if (!EFI_ERROR (Status)) {
-
- gPciRootHpcPool = HpcList;
- gPciRootHpcCount = HpcCount;
- gPciRootHpcData = AllocateZeroPool (sizeof (ROOT_HPC_DATA) * gPciRootHpcCount);
+ gPciRootHpcPool = HpcList;
+ gPciRootHpcCount = HpcCount;
+ gPciRootHpcData = AllocateZeroPool (sizeof (ROOT_HPC_DATA) * gPciRootHpcCount);
if (gPciRootHpcData == NULL) {
return EFI_OUT_OF_RESOURCES;
}
@@ -139,16 +137,14 @@ InitializeHotPlugSupport (
**/
BOOLEAN
IsRootPciHotPlugBus (
- IN EFI_DEVICE_PATH_PROTOCOL *HpbDevicePath,
- OUT UINTN *HpIndex OPTIONAL
+ IN EFI_DEVICE_PATH_PROTOCOL *HpbDevicePath,
+ OUT UINTN *HpIndex OPTIONAL
)
{
- UINTN Index;
+ UINTN Index;
for (Index = 0; Index < gPciRootHpcCount; Index++) {
-
if (EfiCompareDevicePath (gPciRootHpcPool[Index].HpbDevicePath, HpbDevicePath)) {
-
if (HpIndex != NULL) {
*HpIndex = Index;
}
@@ -173,16 +169,14 @@ IsRootPciHotPlugBus (
**/
BOOLEAN
IsRootPciHotPlugController (
- IN EFI_DEVICE_PATH_PROTOCOL *HpcDevicePath,
- OUT UINTN *HpIndex
+ IN EFI_DEVICE_PATH_PROTOCOL *HpcDevicePath,
+ OUT UINTN *HpIndex
)
{
- UINTN Index;
+ UINTN Index;
for (Index = 0; Index < gPciRootHpcCount; Index++) {
-
if (EfiCompareDevicePath (gPciRootHpcPool[Index].HpcDevicePath, HpcDevicePath)) {
-
if (HpIndex != NULL) {
*HpIndex = Index;
}
@@ -237,17 +231,16 @@ CreateEventForHpc (
**/
EFI_STATUS
AllRootHPCInitialized (
- IN UINTN TimeoutInMicroSeconds
+ IN UINTN TimeoutInMicroSeconds
)
{
UINT32 Delay;
UINTN Index;
- Delay = (UINT32) ((TimeoutInMicroSeconds / 30) + 1);
+ Delay = (UINT32)((TimeoutInMicroSeconds / 30) + 1);
do {
for (Index = 0; Index < gPciRootHpcCount; Index++) {
-
if (gPciRootHpcData[Index].Found && !gPciRootHpcData[Index].Initialized) {
break;
}
@@ -263,7 +256,6 @@ AllRootHPCInitialized (
gBS->Stall (30);
Delay--;
-
} while (Delay > 0);
return EFI_TIMEOUT;
@@ -280,10 +272,9 @@ AllRootHPCInitialized (
**/
BOOLEAN
IsSHPC (
- IN PCI_IO_DEVICE *PciIoDevice
+ IN PCI_IO_DEVICE *PciIoDevice
)
{
-
EFI_STATUS Status;
UINT8 Offset;
@@ -293,11 +284,11 @@ IsSHPC (
Offset = 0;
Status = LocateCapabilityRegBlock (
- PciIoDevice,
- EFI_PCI_CAPABILITY_ID_SHPC,
- &Offset,
- NULL
- );
+ PciIoDevice,
+ EFI_PCI_CAPABILITY_ID_SHPC,
+ &Offset,
+ NULL
+ );
//
// If the PCI-PCI bridge has the hot plug controller build-in,
@@ -328,13 +319,13 @@ IsSHPC (
**/
BOOLEAN
SupportsPcieHotplug (
- IN PCI_IO_DEVICE *PciIoDevice
+ IN PCI_IO_DEVICE *PciIoDevice
)
{
- UINT32 Offset;
- EFI_STATUS Status;
- PCI_REG_PCIE_CAPABILITY Capability;
- PCI_REG_PCIE_SLOT_CAPABILITY SlotCapability;
+ UINT32 Offset;
+ EFI_STATUS Status;
+ PCI_REG_PCIE_CAPABILITY Capability;
+ PCI_REG_PCIE_SLOT_CAPABILITY SlotCapability;
if (PciIoDevice == NULL) {
return FALSE;
@@ -346,6 +337,7 @@ SupportsPcieHotplug (
if (!PciIoDevice->IsPciExp) {
return FALSE;
}
+
Offset = PciIoDevice->PciExpressCapabilityOffset +
OFFSET_OF (PCI_CAPABILITY_PCIEXP, Capability);
Status = PciIoDevice->PciIo.Pci.Read (
@@ -363,12 +355,13 @@ SupportsPcieHotplug (
// Check the contents of the register
//
switch (Capability.Bits.DevicePortType) {
- case PCIE_DEVICE_PORT_TYPE_ROOT_PORT:
- case PCIE_DEVICE_PORT_TYPE_DOWNSTREAM_PORT:
- break;
- default:
- return FALSE;
+ case PCIE_DEVICE_PORT_TYPE_ROOT_PORT:
+ case PCIE_DEVICE_PORT_TYPE_DOWNSTREAM_PORT:
+ break;
+ default:
+ return FALSE;
}
+
if (!Capability.Bits.SlotImplemented) {
return FALSE;
}
@@ -395,6 +388,7 @@ SupportsPcieHotplug (
if (SlotCapability.Bits.HotPlugCapable) {
return TRUE;
}
+
return FALSE;
}
@@ -406,34 +400,34 @@ SupportsPcieHotplug (
**/
VOID
GetResourcePaddingForHpb (
- IN PCI_IO_DEVICE *PciIoDevice
+ IN PCI_IO_DEVICE *PciIoDevice
)
{
- EFI_STATUS Status;
- EFI_HPC_STATE State;
- UINT64 PciAddress;
- EFI_HPC_PADDING_ATTRIBUTES Attributes;
- EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Descriptors;
+ EFI_STATUS Status;
+ EFI_HPC_STATE State;
+ UINT64 PciAddress;
+ EFI_HPC_PADDING_ATTRIBUTES Attributes;
+ EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Descriptors;
if (IsPciHotPlugBus (PciIoDevice)) {
//
// If PCI-PCI bridge device is PCI Hot Plug bus.
//
PciAddress = EFI_PCI_ADDRESS (PciIoDevice->BusNumber, PciIoDevice->DeviceNumber, PciIoDevice->FunctionNumber, 0);
- Status = gPciHotPlugInit->GetResourcePadding (
- gPciHotPlugInit,
- PciIoDevice->DevicePath,
- PciAddress,
- &State,
- (VOID **) &Descriptors,
- &Attributes
- );
+ Status = gPciHotPlugInit->GetResourcePadding (
+ gPciHotPlugInit,
+ PciIoDevice->DevicePath,
+ PciAddress,
+ &State,
+ (VOID **)&Descriptors,
+ &Attributes
+ );
if (EFI_ERROR (Status)) {
return;
}
- if ((State & EFI_HPC_STATE_ENABLED) != 0 && (State & EFI_HPC_STATE_INITIALIZED) != 0) {
+ if (((State & EFI_HPC_STATE_ENABLED) != 0) && ((State & EFI_HPC_STATE_INITIALIZED) != 0)) {
PciIoDevice->ResourcePaddingDescriptors = Descriptors;
PciIoDevice->PaddingAttributes = Attributes;
}
@@ -453,7 +447,7 @@ GetResourcePaddingForHpb (
**/
BOOLEAN
IsPciHotPlugBus (
- PCI_IO_DEVICE *PciIoDevice
+ PCI_IO_DEVICE *PciIoDevice
)
{
if (IsSHPC (PciIoDevice)) {
@@ -475,10 +469,9 @@ IsPciHotPlugBus (
//
// Otherwise, see if it is a Root HPC
//
- if(IsRootPciHotPlugBus (PciIoDevice->DevicePath, NULL)) {
+ if (IsRootPciHotPlugBus (PciIoDevice->DevicePath, NULL)) {
return TRUE;
}
return FALSE;
}
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-17 13:28:41 +0000