#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 =
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