1 files changed, 22 insertions, 400 deletions

diff --git a/arch/powerpc/platforms/cell/spu_priv1_mmio.c b/arch/powerpc/platforms/cell/spu_priv1_mmio.c
index 910a926b61a2..67fa7247b80a 100644
--- a/arch/powerpc/platforms/cell/spu_priv1_mmio.c
+++ b/arch/powerpc/platforms/cell/spu_priv1_mmio.c
@@ -37,490 +37,112 @@
 #include "interrupt.h"
 #include "spu_priv1_mmio.h"
 
-static DEFINE_MUTEX(add_spumem_mutex);
-
-struct spu_pdata {
-	struct device_node *devnode;
-	struct spu_priv1 __iomem *priv1;
-};
-
-static struct spu_pdata *spu_get_pdata(struct spu *spu)
-{
-	BUG_ON(!spu->pdata);
-	return spu->pdata;
-}
-
-struct device_node *spu_devnode(struct spu *spu)
-{
-	return spu_get_pdata(spu)->devnode;
-}
-
-EXPORT_SYMBOL_GPL(spu_devnode);
-
-static int __init cell_spuprop_present(struct spu *spu, struct device_node *spe,
-		const char *prop)
-{
-	const struct address_prop {
-		unsigned long address;
-		unsigned int len;
-	} __attribute__((packed)) *p;
-	int proplen;
-
-	unsigned long start_pfn, nr_pages;
-	struct pglist_data *pgdata;
-	struct zone *zone;
-	int ret;
-
-	p = get_property(spe, prop, &proplen);
-	WARN_ON(proplen != sizeof (*p));
-
-	start_pfn = p->address >> PAGE_SHIFT;
-	nr_pages = ((unsigned long)p->len + PAGE_SIZE - 1) >> PAGE_SHIFT;
-
-	pgdata = NODE_DATA(spu->node);
-	zone = pgdata->node_zones;
-
-	/* XXX rethink locking here */
-	mutex_lock(&add_spumem_mutex);
-	ret = __add_pages(zone, start_pfn, nr_pages);
-	mutex_unlock(&add_spumem_mutex);
-
-	return ret;
-}
-
-static void __iomem * __init map_spe_prop(struct spu *spu,
-		struct device_node *n, const char *name)
-{
-	const struct address_prop {
-		unsigned long address;
-		unsigned int len;
-	} __attribute__((packed)) *prop;
-
-	const void *p;
-	int proplen;
-	void __iomem *ret = NULL;
-	int err = 0;
-
-	p = get_property(n, name, &proplen);
-	if (proplen != sizeof (struct address_prop))
-		return NULL;
-
-	prop = p;
-
-	err = cell_spuprop_present(spu, n, name);
-	if (err && (err != -EEXIST))
-		goto out;
-
-	ret = ioremap(prop->address, prop->len);
-
- out:
-	return ret;
-}
-
-static void spu_unmap(struct spu *spu)
-{
-	iounmap(spu->priv2);
-	iounmap(spu_get_pdata(spu)->priv1);
-	iounmap(spu->problem);
-	iounmap((__force u8 __iomem *)spu->local_store);
-}
-
-static int __init spu_map_interrupts_old(struct spu *spu,
-	struct device_node *np)
-{
-	unsigned int isrc;
-	const u32 *tmp;
-	int nid;
-
-	/* Get the interrupt source unit from the device-tree */
-	tmp = get_property(np, "isrc", NULL);
-	if (!tmp)
-		return -ENODEV;
-	isrc = tmp[0];
-
-	tmp = get_property(np->parent->parent, "node-id", NULL);
-	if (!tmp) {
-		printk(KERN_WARNING "%s: can't find node-id\n", __FUNCTION__);
-		nid = spu->node;
-	} else
-		nid = tmp[0];
-
-	/* Add the node number */
-	isrc |= nid << IIC_IRQ_NODE_SHIFT;
-
-	/* Now map interrupts of all 3 classes */
-	spu->irqs[0] = irq_create_mapping(NULL, IIC_IRQ_CLASS_0 | isrc);
-	spu->irqs[1] = irq_create_mapping(NULL, IIC_IRQ_CLASS_1 | isrc);
-	spu->irqs[2] = irq_create_mapping(NULL, IIC_IRQ_CLASS_2 | isrc);
-
-	/* Right now, we only fail if class 2 failed */
-	return spu->irqs[2] == NO_IRQ ? -EINVAL : 0;
-}
-
-static int __init spu_map_device_old(struct spu *spu, struct device_node *node)
-{
-	const char *prop;
-	int ret;
-
-	ret = -ENODEV;
-	spu->name = get_property(node, "name", NULL);
-	if (!spu->name)
-		goto out;
-
-	prop = get_property(node, "local-store", NULL);
-	if (!prop)
-		goto out;
-	spu->local_store_phys = *(unsigned long *)prop;
-
-	/* we use local store as ram, not io memory */
-	spu->local_store = (void __force *)
-		map_spe_prop(spu, node, "local-store");
-	if (!spu->local_store)
-		goto out;
-
-	prop = get_property(node, "problem", NULL);
-	if (!prop)
-		goto out_unmap;
-	spu->problem_phys = *(unsigned long *)prop;
-
-	spu->problem= map_spe_prop(spu, node, "problem");
-	if (!spu->problem)
-		goto out_unmap;
-
-	spu_get_pdata(spu)->priv1= map_spe_prop(spu, node, "priv1");
-
-	spu->priv2= map_spe_prop(spu, node, "priv2");
-	if (!spu->priv2)
-		goto out_unmap;
-	ret = 0;
-	goto out;
-
-out_unmap:
-	spu_unmap(spu);
-out:
-	return ret;
-}
-
-static int __init spu_map_interrupts(struct spu *spu, struct device_node *np)
-{
-	struct of_irq oirq;
-	int ret;
-	int i;
-
-	for (i=0; i < 3; i++) {
-		ret = of_irq_map_one(np, i, &oirq);
-		if (ret) {
-			pr_debug("spu_new: failed to get irq %d\n", i);
-			goto err;
-		}
-		ret = -EINVAL;
-		pr_debug("  irq %d no 0x%x on %s\n", i, oirq.specifier[0],
-			 oirq.controller->full_name);
-		spu->irqs[i] = irq_create_of_mapping(oirq.controller,
-					oirq.specifier, oirq.size);
-		if (spu->irqs[i] == NO_IRQ) {
-			pr_debug("spu_new: failed to map it !\n");
-			goto err;
-		}
-	}
-	return 0;
-
-err:
-	pr_debug("failed to map irq %x for spu %s\n", *oirq.specifier,
-		spu->name);
-	for (; i >= 0; i--) {
-		if (spu->irqs[i] != NO_IRQ)
-			irq_dispose_mapping(spu->irqs[i]);
-	}
-	return ret;
-}
-
-static int spu_map_resource(struct spu *spu, int nr,
-			    void __iomem** virt, unsigned long *phys)
-{
-	struct device_node *np = spu_get_pdata(spu)->devnode;
-	unsigned long start_pfn, nr_pages;
-	struct pglist_data *pgdata;
-	struct zone *zone;
-	struct resource resource = { };
-	unsigned long len;
-	int ret;
-
-	ret = of_address_to_resource(np, nr, &resource);
-	if (ret)
-		goto out;
-
-	if (phys)
-		*phys = resource.start;
-	len = resource.end - resource.start + 1;
-	*virt = ioremap(resource.start, len);
-	if (!*virt)
-		ret = -EINVAL;
-
-	start_pfn = resource.start >> PAGE_SHIFT;
-	nr_pages = (len + PAGE_SIZE - 1) >> PAGE_SHIFT;
-
-	pgdata = NODE_DATA(spu->node);
-	zone = pgdata->node_zones;
-
-	/* XXX rethink locking here */
-	mutex_lock(&add_spumem_mutex);
-	ret = __add_pages(zone, start_pfn, nr_pages);
-	mutex_unlock(&add_spumem_mutex);
-
-out:
-	return ret;
-}
-
-static int __init spu_map_device(struct spu *spu)
-{
-	struct device_node *np = spu_get_pdata(spu)->devnode;
-	int ret = -ENODEV;
-
-	spu->name = get_property(np, "name", NULL);
-	if (!spu->name)
-		goto out;
-
-	ret = spu_map_resource(spu, 0, (void __iomem**)&spu->local_store,
-			       &spu->local_store_phys);
-	if (ret) {
-		pr_debug("spu_new: failed to map %s resource 0\n",
-			 np->full_name);
-		goto out;
-	}
-	ret = spu_map_resource(spu, 1, (void __iomem**)&spu->problem,
-			       &spu->problem_phys);
-	if (ret) {
-		pr_debug("spu_new: failed to map %s resource 1\n",
-			 np->full_name);
-		goto out_unmap;
-	}
-	ret = spu_map_resource(spu, 2, (void __iomem**)&spu->priv2, NULL);
-	if (ret) {
-		pr_debug("spu_new: failed to map %s resource 2\n",
-			 np->full_name);
-		goto out_unmap;
-	}
-	if (!firmware_has_feature(FW_FEATURE_LPAR))
-		ret = spu_map_resource(spu, 3,
-			       (void __iomem**)&spu_get_pdata(spu)->priv1, NULL);
-	if (ret) {
-		pr_debug("spu_new: failed to map %s resource 3\n",
-			 np->full_name);
-		goto out_unmap;
-	}
-	pr_debug("spu_new: %s maps:\n", np->full_name);
-	pr_debug("  local store   : 0x%016lx -> 0x%p\n",
-		 spu->local_store_phys, spu->local_store);
-	pr_debug("  problem state : 0x%016lx -> 0x%p\n",
-		 spu->problem_phys, spu->problem);
-	pr_debug("  priv2         :                       0x%p\n", spu->priv2);
-	pr_debug("  priv1         :                       0x%p\n",
-		 spu_get_pdata(spu)->priv1);
-
-	return 0;
-
-out_unmap:
-	spu_unmap(spu);
-out:
-	pr_debug("failed to map spe %s: %d\n", spu->name, ret);
-	return ret;
-}
-
-static int __init of_enumerate_spus(int (*fn)(void *data))
-{
-	int ret;
-	struct device_node *node;
-
-	ret = -ENODEV;
-	for (node = of_find_node_by_type(NULL, "spe");
-			node; node = of_find_node_by_type(node, "spe")) {
-		ret = fn(node);
-		if (ret) {
-			printk(KERN_WARNING "%s: Error initializing %s\n",
-				__FUNCTION__, node->name);
-			break;
-		}
-	}
-	return ret;
-}
-
-static int __init of_create_spu(struct spu *spu, void *data)
-{
-	int ret;
-	struct device_node *spe = (struct device_node *)data;
-
-	spu->pdata = kzalloc(sizeof(struct spu_pdata),
-		GFP_KERNEL);
-	if (!spu->pdata) {
-		ret = -ENOMEM;
-		goto out;
-	}
-	spu_get_pdata(spu)->devnode = of_node_get(spe);
-
-	spu->node = of_node_to_nid(spe);
-	if (spu->node >= MAX_NUMNODES) {
-		printk(KERN_WARNING "SPE %s on node %d ignored,"
-		       " node number too big\n", spe->full_name, spu->node);
-		printk(KERN_WARNING "Check if CONFIG_NUMA is enabled.\n");
-		ret = -ENODEV;
-		goto out_free;
-	}
-
-	ret = spu_map_device(spu);
-	/* try old method */
-	if (ret)
-		ret = spu_map_device_old(spu, spe);
-	if (ret)
-		goto out_free;
-
-	ret = spu_map_interrupts(spu, spe);
-	if (ret)
-		ret = spu_map_interrupts_old(spu, spe);
-	if (ret)
-		goto out_unmap;
-
-	pr_debug(KERN_DEBUG "Using SPE %s %p %p %p %p %d\n", spu->name,
-		spu->local_store, spu->problem, spu_get_pdata(spu)->priv1,
-		spu->priv2, spu->number);
-	goto out;
-
-out_unmap:
-	spu_unmap(spu);
-out_free:
-	kfree(spu->pdata);
-	spu->pdata = NULL;
-out:
-	return ret;
-}
-
-static int of_destroy_spu(struct spu *spu)
-{
-	spu_unmap(spu);
-	of_node_put(spu_get_pdata(spu)->devnode);
-	kfree(spu->pdata);
-	spu->pdata = NULL;
-	return 0;
-}
-
-const struct spu_management_ops spu_management_of_ops = {
-	.enumerate_spus = of_enumerate_spus,
-	.create_spu = of_create_spu,
-	.destroy_spu = of_destroy_spu,
-};
-
 static void int_mask_and(struct spu *spu, int class, u64 mask)
 {
 	u64 old_mask;
 
-	old_mask = in_be64(&spu_get_pdata(spu)->priv1->int_mask_RW[class]);
-	out_be64(&spu_get_pdata(spu)->priv1->int_mask_RW[class],
-		old_mask & mask);
+	old_mask = in_be64(&spu->priv1->int_mask_RW[class]);
+	out_be64(&spu->priv1->int_mask_RW[class], old_mask & mask);
 }
 
 static void int_mask_or(struct spu *spu, int class, u64 mask)
 {
 	u64 old_mask;
 
-	old_mask = in_be64(&spu_get_pdata(spu)->priv1->int_mask_RW[class]);
-	out_be64(&spu_get_pdata(spu)->priv1->int_mask_RW[class],
-		old_mask | mask);
+	old_mask = in_be64(&spu->priv1->int_mask_RW[class]);
+	out_be64(&spu->priv1->int_mask_RW[class], old_mask | mask);
 }
 
 static void int_mask_set(struct spu *spu, int class, u64 mask)
 {
-	out_be64(&spu_get_pdata(spu)->priv1->int_mask_RW[class], mask);
+	out_be64(&spu->priv1->int_mask_RW[class], mask);
 }
 
 static u64 int_mask_get(struct spu *spu, int class)
 {
-	return in_be64(&spu_get_pdata(spu)->priv1->int_mask_RW[class]);
+	return in_be64(&spu->priv1->int_mask_RW[class]);
 }
 
 static void int_stat_clear(struct spu *spu, int class, u64 stat)
 {
-	out_be64(&spu_get_pdata(spu)->priv1->int_stat_RW[class], stat);
+	out_be64(&spu->priv1->int_stat_RW[class], stat);
 }
 
 static u64 int_stat_get(struct spu *spu, int class)
 {
-	return in_be64(&spu_get_pdata(spu)->priv1->int_stat_RW[class]);
+	return in_be64(&spu->priv1->int_stat_RW[class]);
 }
 
 static void cpu_affinity_set(struct spu *spu, int cpu)
 {
 	u64 target = iic_get_target_id(cpu);
 	u64 route = target << 48 | target << 32 | target << 16;
-	out_be64(&spu_get_pdata(spu)->priv1->int_route_RW, route);
+	out_be64(&spu->priv1->int_route_RW, route);
 }
 
 static u64 mfc_dar_get(struct spu *spu)
 {
-	return in_be64(&spu_get_pdata(spu)->priv1->mfc_dar_RW);
+	return in_be64(&spu->priv1->mfc_dar_RW);
 }
 
 static u64 mfc_dsisr_get(struct spu *spu)
 {
-	return in_be64(&spu_get_pdata(spu)->priv1->mfc_dsisr_RW);
+	return in_be64(&spu->priv1->mfc_dsisr_RW);
 }
 
 static void mfc_dsisr_set(struct spu *spu, u64 dsisr)
 {
-	out_be64(&spu_get_pdata(spu)->priv1->mfc_dsisr_RW, dsisr);
+	out_be64(&spu->priv1->mfc_dsisr_RW, dsisr);
 }
 
 static void mfc_sdr_setup(struct spu *spu)
 {
-	out_be64(&spu_get_pdata(spu)->priv1->mfc_sdr_RW, mfspr(SPRN_SDR1));
+	out_be64(&spu->priv1->mfc_sdr_RW, mfspr(SPRN_SDR1));
 }
 
 static void mfc_sr1_set(struct spu *spu, u64 sr1)
 {
-	out_be64(&spu_get_pdata(spu)->priv1->mfc_sr1_RW, sr1);
+	out_be64(&spu->priv1->mfc_sr1_RW, sr1);
 }
 
 static u64 mfc_sr1_get(struct spu *spu)
 {
-	return in_be64(&spu_get_pdata(spu)->priv1->mfc_sr1_RW);
+	return in_be64(&spu->priv1->mfc_sr1_RW);
 }
 
 static void mfc_tclass_id_set(struct spu *spu, u64 tclass_id)
 {
-	out_be64(&spu_get_pdata(spu)->priv1->mfc_tclass_id_RW, tclass_id);
+	out_be64(&spu->priv1->mfc_tclass_id_RW, tclass_id);
 }
 
 static u64 mfc_tclass_id_get(struct spu *spu)
 {
-	return in_be64(&spu_get_pdata(spu)->priv1->mfc_tclass_id_RW);
+	return in_be64(&spu->priv1->mfc_tclass_id_RW);
 }
 
 static void tlb_invalidate(struct spu *spu)
 {
-	out_be64(&spu_get_pdata(spu)->priv1->tlb_invalidate_entry_W, 0ul);
+	out_be64(&spu->priv1->tlb_invalidate_entry_W, 0ul);
 }
 
 static void resource_allocation_groupID_set(struct spu *spu, u64 id)
 {
-	out_be64(&spu_get_pdata(spu)->priv1->resource_allocation_groupID_RW,
-		id);
+	out_be64(&spu->priv1->resource_allocation_groupID_RW, id);
 }
 
 static u64 resource_allocation_groupID_get(struct spu *spu)
 {
-	return in_be64(
-		&spu_get_pdata(spu)->priv1->resource_allocation_groupID_RW);
+	return in_be64(&spu->priv1->resource_allocation_groupID_RW);
 }
 
 static void resource_allocation_enable_set(struct spu *spu, u64 enable)
 {
-	out_be64(&spu_get_pdata(spu)->priv1->resource_allocation_enable_RW,
-		enable);
+	out_be64(&spu->priv1->resource_allocation_enable_RW, enable);
 }
 
 static u64 resource_allocation_enable_get(struct spu *spu)
 {
-	return in_be64(
-		&spu_get_pdata(spu)->priv1->resource_allocation_enable_RW);
+	return in_be64(&spu->priv1->resource_allocation_enable_RW);
 }
 
 const struct spu_priv1_ops spu_priv1_mmio_ops =