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-rw-r--r--Makefile.objs2
-rw-r--r--hw/pcie_port.c116
-rw-r--r--hw/pcie_port.h51
-rw-r--r--qemu-common.h2
4 files changed, 170 insertions, 1 deletions
diff --git a/Makefile.objs b/Makefile.objs
index eeb5134..c73d12b 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -186,7 +186,7 @@ hw-obj-$(CONFIG_PIIX4) += piix4.o
# PCI watchdog devices
hw-obj-y += wdt_i6300esb.o
-hw-obj-y += pcie.o
+hw-obj-y += pcie.o pcie_port.o
hw-obj-y += msix.o msi.o
# PCI network cards
diff --git a/hw/pcie_port.c b/hw/pcie_port.c
new file mode 100644
index 0000000..117de61
--- /dev/null
+++ b/hw/pcie_port.c
@@ -0,0 +1,116 @@
+/*
+ * pcie_port.c
+ *
+ * Copyright (c) 2010 Isaku Yamahata <yamahata at valinux co jp>
+ * VA Linux Systems Japan K.K.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "pcie_port.h"
+
+void pcie_port_init_reg(PCIDevice *d)
+{
+ /* Unlike pci bridge,
+ 66MHz and fast back to back don't apply to pci express port. */
+ pci_set_word(d->config + PCI_STATUS, 0);
+ pci_set_word(d->config + PCI_SEC_STATUS, 0);
+
+ /* 7.5.3.5 Prefetchable Memory Base Limit
+ * The Prefetchable Memory Base and Prefetchable Memory Limit registers
+ * must indicate that 64-bit addresses are supported, as defined in
+ * PCI-to-PCI Bridge Architecture Specification, Revision 1.2.
+ */
+ pci_word_test_and_set_mask(d->config + PCI_PREF_MEMORY_BASE,
+ PCI_PREF_RANGE_TYPE_64);
+ pci_word_test_and_set_mask(d->config + PCI_PREF_MEMORY_LIMIT,
+ PCI_PREF_RANGE_TYPE_64);
+}
+
+/**************************************************************************
+ * (chassis number, pcie physical slot number) -> pcie slot conversion
+ */
+struct PCIEChassis {
+ uint8_t number;
+
+ QLIST_HEAD(, PCIESlot) slots;
+ QLIST_ENTRY(PCIEChassis) next;
+};
+
+static QLIST_HEAD(, PCIEChassis) chassis = QLIST_HEAD_INITIALIZER(chassis);
+
+static struct PCIEChassis *pcie_chassis_find(uint8_t chassis_number)
+{
+ struct PCIEChassis *c;
+ QLIST_FOREACH(c, &chassis, next) {
+ if (c->number == chassis_number) {
+ break;
+ }
+ }
+ return c;
+}
+
+void pcie_chassis_create(uint8_t chassis_number)
+{
+ struct PCIEChassis *c;
+ c = pcie_chassis_find(chassis_number);
+ if (c) {
+ return;
+ }
+ c = qemu_mallocz(sizeof(*c));
+ c->number = chassis_number;
+ QLIST_INIT(&c->slots);
+ QLIST_INSERT_HEAD(&chassis, c, next);
+}
+
+static PCIESlot *pcie_chassis_find_slot_with_chassis(struct PCIEChassis *c,
+ uint8_t slot)
+{
+ PCIESlot *s;
+ QLIST_FOREACH(s, &c->slots, next) {
+ if (s->slot == slot) {
+ break;
+ }
+ }
+ return s;
+}
+
+PCIESlot *pcie_chassis_find_slot(uint8_t chassis_number, uint16_t slot)
+{
+ struct PCIEChassis *c;
+ c = pcie_chassis_find(chassis_number);
+ if (!c) {
+ return NULL;
+ }
+ return pcie_chassis_find_slot_with_chassis(c, slot);
+}
+
+int pcie_chassis_add_slot(struct PCIESlot *slot)
+{
+ struct PCIEChassis *c;
+ c = pcie_chassis_find(slot->chassis);
+ if (!c) {
+ return -ENODEV;
+ }
+ if (pcie_chassis_find_slot_with_chassis(c, slot->slot)) {
+ return -EBUSY;
+ }
+ QLIST_INSERT_HEAD(&c->slots, slot, next);
+ return 0;
+}
+
+void pcie_chassis_del_slot(PCIESlot *s)
+{
+ QLIST_REMOVE(s, next);
+}
diff --git a/hw/pcie_port.h b/hw/pcie_port.h
new file mode 100644
index 0000000..3709583
--- /dev/null
+++ b/hw/pcie_port.h
@@ -0,0 +1,51 @@
+/*
+ * pcie_port.h
+ *
+ * Copyright (c) 2010 Isaku Yamahata <yamahata at valinux co jp>
+ * VA Linux Systems Japan K.K.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef QEMU_PCIE_PORT_H
+#define QEMU_PCIE_PORT_H
+
+#include "pci_bridge.h"
+#include "pci_internals.h"
+
+struct PCIEPort {
+ PCIBridge br;
+
+ /* pci express switch port */
+ uint8_t port;
+};
+
+void pcie_port_init_reg(PCIDevice *d);
+
+struct PCIESlot {
+ PCIEPort port;
+
+ /* pci express switch port with slot */
+ uint8_t chassis;
+ uint16_t slot;
+ QLIST_ENTRY(PCIESlot) next;
+};
+
+void pcie_chassis_create(uint8_t chassis_number);
+void pcie_main_chassis_create(void);
+PCIESlot *pcie_chassis_find_slot(uint8_t chassis, uint16_t slot);
+int pcie_chassis_add_slot(struct PCIESlot *slot);
+void pcie_chassis_del_slot(PCIESlot *s);
+
+#endif /* QEMU_PCIE_PORT_H */
diff --git a/qemu-common.h b/qemu-common.h
index 6d9ee26..b97b16e 100644
--- a/qemu-common.h
+++ b/qemu-common.h
@@ -221,6 +221,8 @@ typedef struct PCIBus PCIBus;
typedef struct PCIDevice PCIDevice;
typedef struct PCIExpressDevice PCIExpressDevice;
typedef struct PCIBridge PCIBridge;
+typedef struct PCIEPort PCIEPort;
+typedef struct PCIESlot PCIESlot;
typedef struct SerialState SerialState;
typedef struct IRQState *qemu_irq;
typedef struct PCMCIACardState PCMCIACardState;