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| author | Jason zhang <zhangjinsong2@huawei.com> | 2017-09-12 11:15:13 +0800 |
|---|---|---|
| committer | Leif Lindholm <leif.lindholm@linaro.org> | 2017-10-05 13:53:16 +0100 |
| commit | 4092167e5a62bab2e2ab114024b457301d4c2bba (patch) | |
| tree | fd52ad4e470bcf05b0e6b28d640557b265118d2a /Silicon | |
| parent | 6238f8d09a7212cf3b43b51afbb9b2f18ac44f3f (diff) | |
| download | edk2-platforms-4092167e5a62bab2e2ab114024b457301d4c2bba.tar.xz | |
Hisilicon D03/D05: Enlarge iATU for RP with ARI capable device.
1. Because Hi161x chip doesn't support "ARI Forwarding Enable"
function, BIOS will enumerate 32 same devices (Device Number 0~31)
when a Non-ARI capable device attached in the RP. Hi161x chip will
not fix it, need BIOS patch.
2. Just enlarge iatu for those root port with ARI capable device
attached, Non-ARI capable device's RP, keep iatu limitation.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jason zhang <zhangjinsong2@huawei.com>
Signed-off-by: Heyi Guo <heyi.guo@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Diffstat (limited to 'Silicon')
3 files changed, 87 insertions, 0 deletions
diff --git a/Silicon/Hisilicon/Drivers/PciHostBridgeDxe/PciHostBridge.c b/Silicon/Hisilicon/Drivers/PciHostBridgeDxe/PciHostBridge.c index e3d3988a64..9fa3f84098 100644 --- a/Silicon/Hisilicon/Drivers/PciHostBridgeDxe/PciHostBridge.c +++ b/Silicon/Hisilicon/Drivers/PciHostBridgeDxe/PciHostBridge.c @@ -839,6 +839,7 @@ NotifyPhase( case EfiPciHostBridgeEndEnumeration:
PCIE_DEBUG("Case EfiPciHostBridgeEndEnumeration\n");
+ EnlargeAtuConfig0 (This); break;
case EfiPciHostBridgeBeginBusAllocation:
diff --git a/Silicon/Hisilicon/Drivers/PciHostBridgeDxe/PciHostBridge.h b/Silicon/Hisilicon/Drivers/PciHostBridgeDxe/PciHostBridge.h index cddda6b642..c04361fcee 100644 --- a/Silicon/Hisilicon/Drivers/PciHostBridgeDxe/PciHostBridge.h +++ b/Silicon/Hisilicon/Drivers/PciHostBridgeDxe/PciHostBridge.h @@ -401,6 +401,9 @@ PreprocessController ( #define EFI_RESOURCE_NONEXISTENT 0xFFFFFFFFFFFFFFFFULL
#define EFI_RESOURCE_LESS 0xFFFFFFFFFFFFFFFEULL
+#define INVALID_CAPABILITY_00 0x00
+#define INVALID_CAPABILITY_FF 0xFF
+#define PCI_CAPABILITY_POINTER_MASK 0xFC
//
// Driver Instance Data Prototypes
@@ -518,4 +521,8 @@ RootBridgeConstructor ( IN UINT32 Seg
);
+VOID
+EnlargeAtuConfig0 (
+ IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This
+ );
#endif
diff --git a/Silicon/Hisilicon/Drivers/PciHostBridgeDxe/PciRootBridgeIo.c b/Silicon/Hisilicon/Drivers/PciHostBridgeDxe/PciRootBridgeIo.c index 10d766a68b..b57bd51209 100644 --- a/Silicon/Hisilicon/Drivers/PciHostBridgeDxe/PciRootBridgeIo.c +++ b/Silicon/Hisilicon/Drivers/PciHostBridgeDxe/PciRootBridgeIo.c @@ -14,6 +14,7 @@ **/
#include "PciHostBridge.h"
+#include <IndustryStandard/PciExpress30.h>
#include <Library/DevicePathLib.h>
#include <Library/DmaLib.h>
#include <Library/PciExpressLib.h>
@@ -2322,3 +2323,81 @@ RootBridgeIoConfiguration ( return EFI_SUCCESS;
}
+BOOLEAN
+PcieCheckAriFwdEn (
+ UINTN PciBaseAddr
+ )
+{
+ UINT8 PciPrimaryStatus;
+ UINT8 CapabilityOffset;
+ UINT8 CapId;
+ UINT8 TempData;
+
+ PciPrimaryStatus = MmioRead16 (PciBaseAddr + PCI_PRIMARY_STATUS_OFFSET);
+
+ if (PciPrimaryStatus & EFI_PCI_STATUS_CAPABILITY) {
+ CapabilityOffset = MmioRead8 (PciBaseAddr + PCI_CAPBILITY_POINTER_OFFSET);
+ CapabilityOffset &= PCI_CAPABILITY_POINTER_MASK;
+
+ while ((CapabilityOffset != INVALID_CAPABILITY_00) && (CapabilityOffset != INVALID_CAPABILITY_FF)) {
+ CapId = MmioRead8 (PciBaseAddr + CapabilityOffset);
+ if (CapId == EFI_PCI_CAPABILITY_ID_PCIEXP) {
+ break;
+ }
+ CapabilityOffset = MmioRead8 (PciBaseAddr + CapabilityOffset + 1);
+ CapabilityOffset &= PCI_CAPABILITY_POINTER_MASK;
+ }
+ } else {
+ PCIE_DEBUG ("[%a:%d] - No PCIE Capability.\n", __FUNCTION__, __LINE__);
+ return FALSE;
+ }
+
+ if ((CapabilityOffset == INVALID_CAPABILITY_FF) || (CapabilityOffset == INVALID_CAPABILITY_00)) {
+ PCIE_DEBUG ("[%a:%d] - No PCIE Capability.\n", __FUNCTION__, __LINE__);
+ return FALSE;
+ }
+
+ TempData = MmioRead16 (PciBaseAddr + CapabilityOffset +
+ EFI_PCIE_CAPABILITY_DEVICE_CONTROL_2_OFFSET);
+ TempData &= EFI_PCIE_CAPABILITY_DEVICE_CAPABILITIES_2_ARI_FORWARDING;
+
+ if (TempData == EFI_PCIE_CAPABILITY_DEVICE_CAPABILITIES_2_ARI_FORWARDING) {
+ return TRUE;
+ } else {
+ return FALSE;
+ }
+}
+
+VOID
+EnlargeAtuConfig0 (
+ IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *This
+ )
+{
+ UINTN RbPciBase;
+ UINT64 MemLimit;
+ LIST_ENTRY *List;
+ PCI_HOST_BRIDGE_INSTANCE *HostBridgeInstance;
+ PCI_ROOT_BRIDGE_INSTANCE *RootBridgeInstance;
+
+ PCIE_DEBUG ("In Enlarge RP iatu Config 0.\n");
+
+ HostBridgeInstance = INSTANCE_FROM_RESOURCE_ALLOCATION_THIS (This);
+ List = HostBridgeInstance->Head.ForwardLink;
+
+ while (List != &HostBridgeInstance->Head) {
+ PCIE_DEBUG ("HostBridge has data.\n");
+ RootBridgeInstance = DRIVER_INSTANCE_FROM_LIST_ENTRY (List);
+
+ RbPciBase = RootBridgeInstance->RbPciBar;
+
+ // Those ARI FWD Enable Root Bridge, need enlarge iatu window.
+ if (PcieCheckAriFwdEn (RbPciBase)) {
+ MemLimit = GetPcieCfgAddress (RootBridgeInstance->Ecam,
+ RootBridgeInstance->BusBase + 2, 0, 0, 0)
+ - 1;
+ MmioWrite32 (RbPciBase + IATU_OFFSET + IATU_VIEW_POINT, 1);
+ MmioWrite32 (RbPciBase + IATU_OFFSET + IATU_REGION_BASE_LIMIT, (UINT32) MemLimit);
+ }
+ List = List->ForwardLink;
+ }
+}
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