[POWERPC] iSeries: Merge vpdinfo.c into pci.c

There was only one global function in vpdinfo.c and it was only called
from pci.c, so merge them and make the function static.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 218 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/iseries/pci.c b/arch/powerpc/platforms/iseries/pci.c
index 5466975bc906..68f248b4c696 100644
--- a/arch/powerpc/platforms/iseries/pci.c
+++ b/arch/powerpc/platforms/iseries/pci.c
@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2001 Allan Trautman, IBM Corporation
+ * Copyright (C) 2005,2007  Stephen Rothwell, IBM Corp
  *
  * iSeries specific routines for PCI.
  *
@@ -26,6 +27,7 @@
 #include <linux/module.h>
 #include <linux/pci.h>
 
+#include <asm/types.h>
 #include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/prom.h>
@@ -35,6 +37,7 @@
 #include <asm/abs_addr.h>
 #include <asm/firmware.h>
 
+#include <asm/iseries/hv_types.h>
 #include <asm/iseries/hv_call_xm.h>
 #include <asm/iseries/mf.h>
 #include <asm/iseries/iommu.h>
@@ -80,6 +83,221 @@ static inline u64 iseries_ds_addr(struct device_node *node)
 }
 
 /*
+ * Size of Bus VPD data
+ */
+#define BUS_VPDSIZE      1024
+
+/*
+ * Bus Vpd Tags
+ */
+#define VPD_END_OF_AREA		0x79
+#define VPD_ID_STRING		0x82
+#define VPD_VENDOR_AREA		0x84
+
+/*
+ * Mfg Area Tags
+ */
+#define VPD_FRU_FRAME_ID	0x4649	/* "FI" */
+#define VPD_SLOT_MAP_FORMAT	0x4D46	/* "MF" */
+#define VPD_SLOT_MAP		0x534D	/* "SM" */
+
+/*
+ * Structures of the areas
+ */
+struct mfg_vpd_area {
+	u16	tag;
+	u8	length;
+	u8	data1;
+	u8	data2;
+};
+#define MFG_ENTRY_SIZE   3
+
+struct slot_map {
+	u8	agent;
+	u8	secondary_agent;
+	u8	phb;
+	char	card_location[3];
+	char	parms[8];
+	char	reserved[2];
+};
+#define SLOT_ENTRY_SIZE   16
+
+/*
+ * Parse the Slot Area
+ */
+static void __init iseries_parse_slot_area(struct slot_map *map, int len,
+		HvAgentId agent, u8 *phb, char card[4])
+{
+	/*
+	 * Parse Slot label until we find the one requested
+	 */
+	while (len > 0) {
+		if (map->agent == agent) {
+			/*
+			 * If Phb wasn't found, grab the entry first one found.
+			 */
+			if (*phb == 0xff)
+				*phb = map->phb;
+			/* Found it, extract the data. */
+			if (map->phb == *phb) {
+				memcpy(card, &map->card_location, 3);
+				card[3]  = 0;
+				break;
+			}
+		}
+		/* Point to the next Slot */
+		map = (struct slot_map *)((char *)map + SLOT_ENTRY_SIZE);
+		len -= SLOT_ENTRY_SIZE;
+	}
+}
+
+/*
+ * Parse the Mfg Area
+ */
+static void __init iseries_parse_mfg_area(struct mfg_vpd_area *area, int len,
+		HvAgentId agent, u8 *phb, u8 *frame, char card[4])
+{
+	u16 slot_map_fmt = 0;
+
+	/* Parse Mfg Data */
+	while (len > 0) {
+		int mfg_tag_len = area->length;
+		/* Frame ID         (FI 4649020310 ) */
+		if (area->tag == VPD_FRU_FRAME_ID)
+			*frame = area->data1;
+		/* Slot Map Format  (MF 4D46020004 ) */
+		else if (area->tag == VPD_SLOT_MAP_FORMAT)
+			slot_map_fmt = (area->data1 * 256)
+				+ area->data2;
+		/* Slot Map         (SM 534D90 */
+		else if (area->tag == VPD_SLOT_MAP) {
+			struct slot_map *slot_map;
+
+			if (slot_map_fmt == 0x1004)
+				slot_map = (struct slot_map *)((char *)area
+						+ MFG_ENTRY_SIZE + 1);
+			else
+				slot_map = (struct slot_map *)((char *)area
+						+ MFG_ENTRY_SIZE);
+			iseries_parse_slot_area(slot_map, mfg_tag_len,
+					agent, phb, card);
+		}
+		/*
+		 * Point to the next Mfg Area
+		 * Use defined size, sizeof give wrong answer
+		 */
+		area = (struct mfg_vpd_area *)((char *)area + mfg_tag_len
+				+ MFG_ENTRY_SIZE);
+		len -= (mfg_tag_len + MFG_ENTRY_SIZE);
+	}
+}
+
+/*
+ * Look for "BUS".. Data is not Null terminated.
+ * PHBID of 0xFF indicates PHB was not found in VPD Data.
+ */
+static u8 __init iseries_parse_phbid(u8 *area, int len)
+{
+	while (len > 0) {
+		if ((*area == 'B') && (*(area + 1) == 'U')
+				&& (*(area + 2) == 'S')) {
+			area += 3;
+			while (*area == ' ')
+				area++;
+			return *area & 0x0F;
+		}
+		area++;
+		len--;
+	}
+	return 0xff;
+}
+
+/*
+ * Parse out the VPD Areas
+ */
+static void __init iseries_parse_vpd(u8 *data, int data_len,
+		HvAgentId agent, u8 *frame, char card[4])
+{
+	u8 phb = 0xff;
+
+	while (data_len > 0) {
+		int len;
+		u8 tag = *data;
+
+		if (tag == VPD_END_OF_AREA)
+			break;
+		len = *(data + 1) + (*(data + 2) * 256);
+		data += 3;
+		data_len -= 3;
+		if (tag == VPD_ID_STRING)
+			phb = iseries_parse_phbid(data, len);
+		else if (tag == VPD_VENDOR_AREA)
+			iseries_parse_mfg_area((struct mfg_vpd_area *)data, len,
+					agent, &phb, frame, card);
+		/* Point to next Area. */
+		data += len;
+		data_len -= len;
+	}
+}
+
+static int __init iseries_get_location_code(u16 bus, HvAgentId agent,
+		u8 *frame, char card[4])
+{
+	int status = 0;
+	int bus_vpd_len = 0;
+	u8 *bus_vpd = kmalloc(BUS_VPDSIZE, GFP_KERNEL);
+
+	if (bus_vpd == NULL) {
+		printk("PCI: Bus VPD Buffer allocation failure.\n");
+		return 0;
+	}
+	bus_vpd_len = HvCallPci_getBusVpd(bus, iseries_hv_addr(bus_vpd),
+					BUS_VPDSIZE);
+	if (bus_vpd_len == 0) {
+		printk("PCI: Bus VPD Buffer zero length.\n");
+		goto out_free;
+	}
+	/* printk("PCI: bus_vpd: %p, %d\n",bus_vpd, bus_vpd_len); */
+	/* Make sure this is what I think it is */
+	if (*bus_vpd != VPD_ID_STRING) {
+		printk("PCI: Bus VPD Buffer missing starting tag.\n");
+		goto out_free;
+	}
+	iseries_parse_vpd(bus_vpd, bus_vpd_len, agent, frame, card);
+	status = 1;
+out_free:
+	kfree(bus_vpd);
+	return status;
+}
+
+/*
+ * Prints the device information.
+ * - Pass in pci_dev* pointer to the device.
+ * - Pass in the device count
+ *
+ * Format:
+ * PCI: Bus  0, Device 26, Vendor 0x12AE  Frame  1, Card  C10  Ethernet
+ * controller
+ */
+static void __init iseries_device_information(struct pci_dev *pdev, int count,
+		u16 bus, HvSubBusNumber subbus)
+{
+	u8 frame = 0;
+	char card[4];
+	HvAgentId agent;
+
+	agent = ISERIES_PCI_AGENTID(ISERIES_GET_DEVICE_FROM_SUBBUS(subbus),
+			ISERIES_GET_FUNCTION_FROM_SUBBUS(subbus));
+
+	if (iseries_get_location_code(bus, agent, &frame, card)) {
+		printk("%d. PCI: Bus%3d, Device%3d, Vendor %04X Frame%3d, "
+			"Card %4s  0x%04X\n", count, bus,
+			PCI_SLOT(pdev->devfn), pdev->vendor, frame,
+			card, (int)(pdev->class >> 8));
+	}
+}
+
+/*
  * iomm_table_allocate_entry
  *
  * Adds pci_dev entry in address translation table