Mimic what's done on sparc64 and parse the OpenFirmware device tree to

enumerate the pci devices.  This allow us to not store the interrupt
vector in the interrupt line register and to not try to attach pci
devices disabled by firmware.

With inputs from and ok kettenis@

1 files changed, 103 insertions, 0 deletions

diff --git a/sys/arch/socppc/include/pci_machdep.h b/sys/arch/socppc/include/pci_machdep.h
new file mode 100644
index 00000000000..2ba90f5d6ef
--- /dev/null
+++ b/sys/arch/socppc/include/pci_machdep.h
@@ -0,0 +1,103 @@
+/*	$OpenBSD: pci_machdep.h,v 1.1 2013/08/07 07:29:20 mpi Exp $	*/
+
+/*
+ * Copyright (c) 1996 Carnegie-Mellon University.
+ * All rights reserved.
+ *
+ * Author: Chris G. Demetriou
+ *
+ * Permission to use, copy, modify and distribute this software and
+ * its documentation is hereby granted, provided that both the copyright
+ * notice and this permission notice appear in all copies of the
+ * software, derivative works or modified versions, and any portions
+ * thereof, and that both notices appear in supporting documentation.
+ *
+ * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
+ * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
+ * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
+ *
+ * Carnegie Mellon requests users of this software to return to
+ *
+ *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
+ *  School of Computer Science
+ *  Carnegie Mellon University
+ *  Pittsburgh PA 15213-3890
+ *
+ * any improvements or extensions that they make and grant Carnegie the
+ * rights to redistribute these changes.
+ */
+
+/*
+ * Machine-specific definitions for PCI autoconfiguration.
+ */
+
+/*
+ * Types provided to machine-independent PCI code
+ */
+typedef struct ppc_pci_chipset *pci_chipset_tag_t;
+typedef u_long pcitag_t;
+typedef u_long pci_intr_handle_t;
+
+/*
+ * ppc-specific PCI structure and type definitions.
+ * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE.
+ */
+struct ppc_pci_chipset {
+	void		*pc_conf_v;
+	void		(*pc_attach_hook)(struct device *,
+			    struct device *, struct pcibus_attach_args *);
+	int		(*pc_bus_maxdevs)(void *, int);
+	pcitag_t	(*pc_make_tag)(void *, int, int, int);
+	void		(*pc_decompose_tag)(void *, pcitag_t, int *,
+			    int *, int *);
+	int		(*pc_conf_size)(void *, pcitag_t);
+	pcireg_t	(*pc_conf_read)(void *, pcitag_t, int);
+	void		(*pc_conf_write)(void *, pcitag_t, int, pcireg_t);
+
+	void		*pc_intr_v;
+	int		(*pc_intr_map)(void *, pcitag_t, int, int,
+			    pci_intr_handle_t *);
+	const char	*(*pc_intr_string)(void *, pci_intr_handle_t);
+	int		(*pc_intr_line)(void *, pci_intr_handle_t);
+	void		*(*pc_intr_establish)(void *, pci_intr_handle_t,
+			    int, int (*)(void *), void *, const char *);
+	void		(*pc_intr_disestablish)(void *, void *);
+	int		(*pc_ether_hw_addr)(struct ppc_pci_chipset *, u_int8_t *);
+};
+
+/*
+ * Functions provided to machine-independent PCI code.
+ */
+#define	pci_attach_hook(p, s, pba)					\
+    (*(pba)->pba_pc->pc_attach_hook)((p), (s), (pba))
+#define	pci_bus_maxdevs(c, b)						\
+    (*(c)->pc_bus_maxdevs)((c)->pc_conf_v, (b))
+#define	pci_make_tag(c, b, d, f)					\
+    (*(c)->pc_make_tag)((c)->pc_conf_v, (b), (d), (f))
+#define	pci_decompose_tag(c, t, bp, dp, fp)				\
+    (*(c)->pc_decompose_tag)((c)->pc_conf_v, (t), (bp), (dp), (fp))
+#define	pci_conf_size(c, t)						\
+    (*(c)->pc_conf_size)((c)->pc_conf_v, (t))
+#define	pci_conf_read(c, t, r)						\
+    (*(c)->pc_conf_read)((c)->pc_conf_v, (t), (r))
+#define	pci_conf_write(c, t, r, v)					\
+    (*(c)->pc_conf_write)((c)->pc_conf_v, (t), (r), (v))
+#define	pci_intr_map(pa, ihp)						\
+    (*((pa)->pa_pc)->pc_intr_map)((pa)->pa_pc->pc_intr_v, 		\
+	(pa)->pa_intrtag, (pa)->pa_intrpin, (pa)->pa_intrline, (ihp))
+#define	pci_intr_map_msi(pa, ihp)	(-1)
+#define	pci_intr_string(c, ih)						\
+    (*(c)->pc_intr_string)((c)->pc_intr_v, (ih))
+#define	pci_intr_line(c, ih)						\
+    (*(c)->pc_intr_line)((c)->pc_intr_v, (ih))
+#define	pci_intr_establish(c, ih, l, h, a, nm)				\
+    (*(c)->pc_intr_establish)((c)->pc_intr_v, (ih), (l), (h), (a), (nm))
+#define	pci_intr_disestablish(c, iv)					\
+    (*(c)->pc_intr_disestablish)((c)->pc_intr_v, (iv))
+#define	pci_ether_hw_addr(c, s)						\
+    (*(c)->pc_ether_hw_addr)((c), (s))
+#define	pci_probe_device_hook(c, a)	(0)
+
+#define	pci_min_powerstate(c, t)	(PCI_PMCSR_STATE_D3)
+
+#define	pci_dev_postattach(a, b)