[SPARC64] PCI: Use common routine to fetch PBM properties.

Namely bus-range and ino-bitmap.

This allows us also to eliminate pci_controller_info's
pci_{first,last}_busno fields as only the pbm ones are
used now.

Signed-off-by: David S. Miller <davem@davemloft.net>

arch/sparc64/kernel/pci_common.c

@@ -15,6 +15,20 @@
 
 #include "pci_impl.h"
 
+void pci_get_pbm_props(struct pci_pbm_info *pbm)
+{
+	const u32 *val = of_get_property(pbm->prom_node, "bus-range", NULL);
+
+	pbm->pci_first_busno = val[0];
+	pbm->pci_last_busno = val[1];
+
+	val = of_get_property(pbm->prom_node, "ino-bitmap", NULL);
+	if (val) {
+		pbm->ino_bitmap = (((u64)val[1] << 32UL) |
+				   ((u64)val[0] <<  0UL));
+	}
+}
+
 static void pci_register_legacy_regions(struct resource *io_res,
 					struct resource *mem_res)
 {

arch/sparc64/kernel/pci_fire.c

@@ -317,8 +317,6 @@ static void pci_fire_pbm_init(struct pci_controller_info *p,
 {
 	const struct linux_prom64_registers *regs;
 	struct pci_pbm_info *pbm;
-	const u32 *ino_bitmap;
-	const unsigned int *busrange;
 
 	if ((portid & 1) == 0)
 		pbm = &p->pbm_A;
@@ -338,13 +336,7 @@ static void pci_fire_pbm_init(struct pci_controller_info *p,
 
 	pci_determine_mem_io_space(pbm);
 
-	ino_bitmap = of_get_property(dp, "ino-bitmap", NULL);
+	pci_get_pbm_props(pbm);
-	pbm->ino_bitmap = (((u64)ino_bitmap[1] << 32UL) |
-			   ((u64)ino_bitmap[0] <<  0UL));
-
-	busrange = of_get_property(dp, "bus-range", NULL);
-	pbm->pci_first_busno = busrange[0];
-	pbm->pci_last_busno = busrange[1];
 
 	pci_fire_hw_init(pbm);
 	pci_fire_pbm_iommu_init(pbm);

arch/sparc64/kernel/pci_impl.h

@@ -17,6 +17,7 @@ extern unsigned long pci_memspace_mask;
 extern int pci_num_controllers;
 
 /* PCI bus scanning and fixup support. */
+extern void pci_get_pbm_props(struct pci_pbm_info *pbm);
 extern struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm);
 extern void pci_determine_mem_io_space(struct pci_pbm_info *pbm);
 

arch/sparc64/kernel/pci_psycho.c

@@ -1088,7 +1088,6 @@ static void psycho_pbm_strbuf_init(struct pci_controller_info *p,
 static void psycho_pbm_init(struct pci_controller_info *p,
 			    struct device_node *dp, int is_pbm_a)
 {
-	unsigned int *busrange;
 	struct property *prop;
 	struct pci_pbm_info *pbm;
 
@@ -1117,10 +1116,7 @@ static void psycho_pbm_init(struct pci_controller_info *p,
 
 	pci_determine_mem_io_space(pbm);
 
-	prop = of_find_property(dp, "bus-range", NULL);
+	pci_get_pbm_props(pbm);
-	busrange = prop->value;
-	pbm->pci_first_busno = busrange[0];
-	pbm->pci_last_busno = busrange[1];
 
 	psycho_pbm_strbuf_init(p, pbm, is_pbm_a);
 }

arch/sparc64/kernel/pci_sabre.c

@@ -1006,8 +1006,7 @@ static void sabre_pbm_init(struct pci_controller_info *p, struct device_node *dp
 	pbm->chip_type = PBM_CHIP_TYPE_SABRE;
 	pbm->parent = p;
 	pbm->prom_node = dp;
-	pbm->pci_first_busno = p->pci_first_busno;
+	pci_get_pbm_props(pbm);
-	pbm->pci_last_busno = p->pci_last_busno;
 
 	pci_determine_mem_io_space(pbm);
 }
@@ -1018,7 +1017,6 @@ void sabre_init(struct device_node *dp, char *model_name)
 	struct pci_controller_info *p;
 	struct iommu *iommu;
 	int tsbsize;
-	const u32 *busrange;
 	const u32 *vdma;
 	u32 upa_portid, dma_mask;
 	u64 clear_irq;
@@ -1119,10 +1117,6 @@ void sabre_init(struct device_node *dp, char *model_name)
 
 	sabre_iommu_init(p, tsbsize, vdma[0], dma_mask);
 
-	busrange = of_get_property(dp, "bus-range", NULL);
-	p->pci_first_busno = busrange[0];
-	p->pci_last_busno = busrange[1];
-
 	/*
 	 * Look for APB underneath.
 	 */

arch/sparc64/kernel/pci_schizo.c

@@ -1491,10 +1491,8 @@ static void schizo_pbm_init(struct pci_controller_info *p,
 			    int chip_type)
 {
 	const struct linux_prom64_registers *regs;
-	const unsigned int *busrange;
 	struct pci_pbm_info *pbm;
 	const char *chipset_name;
-	const u32 *ino_bitmap;
 	int is_pbm_a;
 
 	switch (chip_type) {
@@ -1555,13 +1553,7 @@ static void schizo_pbm_init(struct pci_controller_info *p,
 
 	pci_determine_mem_io_space(pbm);
 
-	ino_bitmap = of_get_property(dp, "ino-bitmap", NULL);
+	pci_get_pbm_props(pbm);
-	pbm->ino_bitmap = (((u64)ino_bitmap[1] << 32UL) |
-			   ((u64)ino_bitmap[0] <<  0UL));
-
-	busrange = of_get_property(dp, "bus-range", NULL);
-	pbm->pci_first_busno = busrange[0];
-	pbm->pci_last_busno = busrange[1];
 
 	schizo_pbm_iommu_init(pbm);
 	schizo_pbm_strbuf_init(pbm);

arch/sparc64/kernel/pci_sun4v.c

@@ -802,20 +802,6 @@ static void pci_sun4v_iommu_init(struct pci_pbm_info *pbm)
 		       pbm->name, sz);
 }
 
-static void pci_sun4v_get_bus_range(struct pci_pbm_info *pbm)
-{
-	struct property *prop;
-	unsigned int *busrange;
-
-	prop = of_find_property(pbm->prom_node, "bus-range", NULL);
-
-	busrange = prop->value;
-
-	pbm->pci_first_busno = busrange[0];
-	pbm->pci_last_busno = busrange[1];
-
-}
-
 #ifdef CONFIG_PCI_MSI
 struct pci_sun4v_msiq_entry {
 	u64		version_type;
@@ -1271,7 +1257,7 @@ static void pci_sun4v_pbm_init(struct pci_controller_info *p, struct device_node
 
 	pci_determine_mem_io_space(pbm);
 
-	pci_sun4v_get_bus_range(pbm);
+	pci_get_pbm_props(pbm);
 	pci_sun4v_iommu_init(pbm);
 	pci_sun4v_msi_init(pbm);
 }

include/asm-sparc64/pbm.h

@@ -145,8 +145,6 @@ struct pci_controller_info {
 
 	/* Now things for the actual PCI bus probes. */
 	struct pci_ops			*pci_ops;
-	unsigned int			pci_first_busno;
-	unsigned int			pci_last_busno;
 };
 
 #endif /* !(__SPARC64_PBM_H) */