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@@ -18,120 +18,498 @@
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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+#include <linux/interrupt.h>
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+#include <linux/list.h>
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#include <linux/module.h>
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+#include <linux/ptrace.h>
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+#include <linux/slab.h>
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+#include <linux/wait.h>
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+#include <linux/mm.h>
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+#include <linux/io.h>
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+#include <linux/mutex.h>
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+#include <linux/device.h>
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-#include <asm/io.h>
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#include <asm/spu.h>
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#include <asm/spu_priv1.h>
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+#include <asm/firmware.h>
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+#include <asm/prom.h>
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#include "interrupt.h"
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+#include "spu_priv1_mmio.h"
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+
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+struct spu_pdata {
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+ int nid;
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+ struct device_node *devnode;
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+ struct spu_priv1 __iomem *priv1;
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+};
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+
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+static struct spu_pdata *spu_get_pdata(struct spu *spu)
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+{
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+ BUG_ON(!spu->pdata);
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+ return spu->pdata;
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+}
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+
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+struct device_node *spu_devnode(struct spu *spu)
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+{
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+ return spu_get_pdata(spu)->devnode;
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+}
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+
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+EXPORT_SYMBOL_GPL(spu_devnode);
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+
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+static int __init find_spu_node_id(struct device_node *spe)
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+{
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+ const unsigned int *id;
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+ struct device_node *cpu;
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+ cpu = spe->parent->parent;
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+ id = get_property(cpu, "node-id", NULL);
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+ return id ? *id : 0;
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+}
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+
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+static int __init cell_spuprop_present(struct spu *spu, struct device_node *spe,
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+ const char *prop)
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+{
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+ static DEFINE_MUTEX(add_spumem_mutex);
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+
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+ const struct address_prop {
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+ unsigned long address;
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+ unsigned int len;
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+ } __attribute__((packed)) *p;
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+ int proplen;
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+
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+ unsigned long start_pfn, nr_pages;
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+ struct pglist_data *pgdata;
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+ struct zone *zone;
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+ int ret;
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+
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+ p = get_property(spe, prop, &proplen);
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+ WARN_ON(proplen != sizeof (*p));
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+
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+ start_pfn = p->address >> PAGE_SHIFT;
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+ nr_pages = ((unsigned long)p->len + PAGE_SIZE - 1) >> PAGE_SHIFT;
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+
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+ pgdata = NODE_DATA(spu_get_pdata(spu)->nid);
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+ zone = pgdata->node_zones;
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+
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+ /* XXX rethink locking here */
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+ mutex_lock(&add_spumem_mutex);
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+ ret = __add_pages(zone, start_pfn, nr_pages);
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+ mutex_unlock(&add_spumem_mutex);
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+
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+ return ret;
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+}
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+
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+static void __iomem * __init map_spe_prop(struct spu *spu,
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+ struct device_node *n, const char *name)
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+{
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+ const struct address_prop {
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+ unsigned long address;
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+ unsigned int len;
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+ } __attribute__((packed)) *prop;
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+
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+ const void *p;
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+ int proplen;
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+ void __iomem *ret = NULL;
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+ int err = 0;
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+
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+ p = get_property(n, name, &proplen);
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+ if (proplen != sizeof (struct address_prop))
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+ return NULL;
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+
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+ prop = p;
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+
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+ err = cell_spuprop_present(spu, n, name);
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+ if (err && (err != -EEXIST))
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+ goto out;
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+
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+ ret = ioremap(prop->address, prop->len);
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+
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+ out:
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+ return ret;
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+}
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+
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+static void spu_unmap(struct spu *spu)
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+{
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+ iounmap(spu->priv2);
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+ iounmap(spu_get_pdata(spu)->priv1);
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+ iounmap(spu->problem);
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+ iounmap((__force u8 __iomem *)spu->local_store);
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+}
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+
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+static int __init spu_map_interrupts_old(struct spu *spu,
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+ struct device_node *np)
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+{
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+ unsigned int isrc;
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+ const u32 *tmp;
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+
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+ /* Get the interrupt source unit from the device-tree */
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+ tmp = get_property(np, "isrc", NULL);
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+ if (!tmp)
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+ return -ENODEV;
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+ isrc = tmp[0];
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+
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+ /* Add the node number */
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+ isrc |= spu->node << IIC_IRQ_NODE_SHIFT;
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+
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+ /* Now map interrupts of all 3 classes */
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+ spu->irqs[0] = irq_create_mapping(NULL, IIC_IRQ_CLASS_0 | isrc);
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+ spu->irqs[1] = irq_create_mapping(NULL, IIC_IRQ_CLASS_1 | isrc);
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+ spu->irqs[2] = irq_create_mapping(NULL, IIC_IRQ_CLASS_2 | isrc);
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+
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+ /* Right now, we only fail if class 2 failed */
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+ return spu->irqs[2] == NO_IRQ ? -EINVAL : 0;
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+}
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+
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+static int __init spu_map_device_old(struct spu *spu, struct device_node *node)
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+{
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+ const char *prop;
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+ int ret;
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+
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+ ret = -ENODEV;
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+ spu->name = get_property(node, "name", NULL);
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+ if (!spu->name)
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+ goto out;
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+
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+ prop = get_property(node, "local-store", NULL);
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+ if (!prop)
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+ goto out;
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+ spu->local_store_phys = *(unsigned long *)prop;
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+
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+ /* we use local store as ram, not io memory */
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+ spu->local_store = (void __force *)
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+ map_spe_prop(spu, node, "local-store");
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+ if (!spu->local_store)
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+ goto out;
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+
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+ prop = get_property(node, "problem", NULL);
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+ if (!prop)
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+ goto out_unmap;
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+ spu->problem_phys = *(unsigned long *)prop;
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+
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+ spu->problem= map_spe_prop(spu, node, "problem");
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+ if (!spu->problem)
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+ goto out_unmap;
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+
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+ spu_get_pdata(spu)->priv1= map_spe_prop(spu, node, "priv1");
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+
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+ spu->priv2= map_spe_prop(spu, node, "priv2");
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+ if (!spu->priv2)
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+ goto out_unmap;
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+ ret = 0;
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+ goto out;
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+
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+out_unmap:
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+ spu_unmap(spu);
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+out:
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+ return ret;
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+}
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+
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+static int __init spu_map_interrupts(struct spu *spu, struct device_node *np)
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+{
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+ struct of_irq oirq;
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+ int ret;
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+ int i;
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+
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+ for (i=0; i < 3; i++) {
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+ ret = of_irq_map_one(np, i, &oirq);
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+ if (ret) {
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+ pr_debug("spu_new: failed to get irq %d\n", i);
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+ goto err;
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+ }
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+ ret = -EINVAL;
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+ pr_debug(" irq %d no 0x%x on %s\n", i, oirq.specifier[0],
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+ oirq.controller->full_name);
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+ spu->irqs[i] = irq_create_of_mapping(oirq.controller,
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+ oirq.specifier, oirq.size);
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+ if (spu->irqs[i] == NO_IRQ) {
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+ pr_debug("spu_new: failed to map it !\n");
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+ goto err;
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+ }
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+ }
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+ return 0;
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+
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+err:
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+ pr_debug("failed to map irq %x for spu %s\n", *oirq.specifier,
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+ spu->name);
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+ for (; i >= 0; i--) {
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+ if (spu->irqs[i] != NO_IRQ)
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+ irq_dispose_mapping(spu->irqs[i]);
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+ }
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+ return ret;
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+}
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+
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+static int spu_map_resource(struct device_node *node, int nr,
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+ void __iomem** virt, unsigned long *phys)
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+{
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+ struct resource resource = { };
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+ int ret;
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+
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+ ret = of_address_to_resource(node, nr, &resource);
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+ if (ret)
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+ goto out;
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+
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+ if (phys)
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+ *phys = resource.start;
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+ *virt = ioremap(resource.start, resource.end - resource.start);
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+ if (!*virt)
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+ ret = -EINVAL;
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+
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+out:
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+ return ret;
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+}
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+
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+static int __init spu_map_device(struct spu *spu, struct device_node *node)
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+{
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+ int ret = -ENODEV;
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+ spu->name = get_property(node, "name", NULL);
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+ if (!spu->name)
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+ goto out;
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+
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+ ret = spu_map_resource(node, 0, (void __iomem**)&spu->local_store,
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+ &spu->local_store_phys);
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+ if (ret) {
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+ pr_debug("spu_new: failed to map %s resource 0\n",
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+ node->full_name);
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+ goto out;
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+ }
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+ ret = spu_map_resource(node, 1, (void __iomem**)&spu->problem,
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+ &spu->problem_phys);
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+ if (ret) {
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+ pr_debug("spu_new: failed to map %s resource 1\n",
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+ node->full_name);
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+ goto out_unmap;
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+ }
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+ ret = spu_map_resource(node, 2, (void __iomem**)&spu->priv2,
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+ NULL);
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+ if (ret) {
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+ pr_debug("spu_new: failed to map %s resource 2\n",
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+ node->full_name);
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+ goto out_unmap;
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+ }
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+ if (!firmware_has_feature(FW_FEATURE_LPAR))
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+ ret = spu_map_resource(node, 3,
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+ (void __iomem**)&spu_get_pdata(spu)->priv1, NULL);
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+ if (ret) {
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+ pr_debug("spu_new: failed to map %s resource 3\n",
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+ node->full_name);
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+ goto out_unmap;
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+ }
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+ pr_debug("spu_new: %s maps:\n", node->full_name);
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+ pr_debug(" local store : 0x%016lx -> 0x%p\n",
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+ spu->local_store_phys, spu->local_store);
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+ pr_debug(" problem state : 0x%016lx -> 0x%p\n",
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+ spu->problem_phys, spu->problem);
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+ pr_debug(" priv2 : 0x%p\n", spu->priv2);
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+ pr_debug(" priv1 : 0x%p\n",
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+ spu_get_pdata(spu)->priv1);
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+
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+ return 0;
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+
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+out_unmap:
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+ spu_unmap(spu);
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+out:
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+ pr_debug("failed to map spe %s: %d\n", spu->name, ret);
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+ return ret;
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+}
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+
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+static int __init of_enumerate_spus(int (*fn)(void *data))
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+{
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+ int ret;
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+ struct device_node *node;
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+
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+ ret = -ENODEV;
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+ for (node = of_find_node_by_type(NULL, "spe");
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+ node; node = of_find_node_by_type(node, "spe")) {
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+ ret = fn(node);
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+ if (ret) {
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+ printk(KERN_WARNING "%s: Error initializing %s\n",
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+ __FUNCTION__, node->name);
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+ break;
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+ }
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+ }
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+ return ret;
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+}
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+
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+static int __init of_create_spu(struct spu *spu, void *data)
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+{
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+ int ret;
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+ struct device_node *spe = (struct device_node *)data;
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+
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+ spu->pdata = kzalloc(sizeof(struct spu_pdata),
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+ GFP_KERNEL);
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+ if (!spu->pdata) {
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+ ret = -ENOMEM;
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+ goto out;
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+ }
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+
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+ spu->node = find_spu_node_id(spe);
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+ if (spu->node >= MAX_NUMNODES) {
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+ printk(KERN_WARNING "SPE %s on node %d ignored,"
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+ " node number too big\n", spe->full_name, spu->node);
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+ printk(KERN_WARNING "Check if CONFIG_NUMA is enabled.\n");
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+ ret = -ENODEV;
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+ goto out_free;
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+ }
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+
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+ spu_get_pdata(spu)->nid = of_node_to_nid(spe);
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+ if (spu_get_pdata(spu)->nid == -1)
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+ spu_get_pdata(spu)->nid = 0;
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+
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+ ret = spu_map_device(spu, spe);
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+ /* try old method */
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+ if (ret)
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+ ret = spu_map_device_old(spu, spe);
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+ if (ret)
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+ goto out_free;
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+
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+ ret = spu_map_interrupts(spu, spe);
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+ if (ret)
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+ ret = spu_map_interrupts_old(spu, spe);
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+ if (ret)
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+ goto out_unmap;
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+
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+ spu_get_pdata(spu)->devnode = of_node_get(spe);
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+
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+ pr_debug(KERN_DEBUG "Using SPE %s %p %p %p %p %d\n", spu->name,
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+ spu->local_store, spu->problem, spu_get_pdata(spu)->priv1,
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+ spu->priv2, spu->number);
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+ goto out;
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+
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+out_unmap:
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+ spu_unmap(spu);
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+out_free:
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+ kfree(spu->pdata);
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+ spu->pdata = NULL;
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+out:
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+ return ret;
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+}
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+
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+static int of_destroy_spu(struct spu *spu)
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+{
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+ spu_unmap(spu);
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+ of_node_put(spu_get_pdata(spu)->devnode);
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+ kfree(spu->pdata);
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+ spu->pdata = NULL;
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+ return 0;
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+}
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+
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+const struct spu_management_ops spu_management_of_ops = {
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+ .enumerate_spus = of_enumerate_spus,
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+ .create_spu = of_create_spu,
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+ .destroy_spu = of_destroy_spu,
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+};
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static void int_mask_and(struct spu *spu, int class, u64 mask)
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{
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u64 old_mask;
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- old_mask = in_be64(&spu->priv1->int_mask_RW[class]);
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- out_be64(&spu->priv1->int_mask_RW[class], old_mask & mask);
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+ old_mask = in_be64(&spu_get_pdata(spu)->priv1->int_mask_RW[class]);
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+ out_be64(&spu_get_pdata(spu)->priv1->int_mask_RW[class],
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+ old_mask & mask);
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}
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static void int_mask_or(struct spu *spu, int class, u64 mask)
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{
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u64 old_mask;
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- old_mask = in_be64(&spu->priv1->int_mask_RW[class]);
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- out_be64(&spu->priv1->int_mask_RW[class], old_mask | mask);
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+ old_mask = in_be64(&spu_get_pdata(spu)->priv1->int_mask_RW[class]);
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+ out_be64(&spu_get_pdata(spu)->priv1->int_mask_RW[class],
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+ old_mask | mask);
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|
|
}
|
|
|
|
|
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static void int_mask_set(struct spu *spu, int class, u64 mask)
|
|
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{
|
|
|
- out_be64(&spu->priv1->int_mask_RW[class], mask);
|
|
|
+ out_be64(&spu_get_pdata(spu)->priv1->int_mask_RW[class], mask);
|
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|
}
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static u64 int_mask_get(struct spu *spu, int class)
|
|
|
{
|
|
|
- return in_be64(&spu->priv1->int_mask_RW[class]);
|
|
|
+ return in_be64(&spu_get_pdata(spu)->priv1->int_mask_RW[class]);
|
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}
|
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|
static void int_stat_clear(struct spu *spu, int class, u64 stat)
|
|
|
{
|
|
|
- out_be64(&spu->priv1->int_stat_RW[class], stat);
|
|
|
+ out_be64(&spu_get_pdata(spu)->priv1->int_stat_RW[class], stat);
|
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|
}
|
|
|
|
|
|
static u64 int_stat_get(struct spu *spu, int class)
|
|
|
{
|
|
|
- return in_be64(&spu->priv1->int_stat_RW[class]);
|
|
|
+ return in_be64(&spu_get_pdata(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->priv1->int_route_RW, route);
|
|
|
+ out_be64(&spu_get_pdata(spu)->priv1->int_route_RW, route);
|
|
|
}
|
|
|
|
|
|
static u64 mfc_dar_get(struct spu *spu)
|
|
|
{
|
|
|
- return in_be64(&spu->priv1->mfc_dar_RW);
|
|
|
+ return in_be64(&spu_get_pdata(spu)->priv1->mfc_dar_RW);
|
|
|
}
|
|
|
|
|
|
static u64 mfc_dsisr_get(struct spu *spu)
|
|
|
{
|
|
|
- return in_be64(&spu->priv1->mfc_dsisr_RW);
|
|
|
+ return in_be64(&spu_get_pdata(spu)->priv1->mfc_dsisr_RW);
|
|
|
}
|
|
|
|
|
|
static void mfc_dsisr_set(struct spu *spu, u64 dsisr)
|
|
|
{
|
|
|
- out_be64(&spu->priv1->mfc_dsisr_RW, dsisr);
|
|
|
+ out_be64(&spu_get_pdata(spu)->priv1->mfc_dsisr_RW, dsisr);
|
|
|
}
|
|
|
|
|
|
static void mfc_sdr_setup(struct spu *spu)
|
|
|
{
|
|
|
- out_be64(&spu->priv1->mfc_sdr_RW, mfspr(SPRN_SDR1));
|
|
|
+ out_be64(&spu_get_pdata(spu)->priv1->mfc_sdr_RW, mfspr(SPRN_SDR1));
|
|
|
}
|
|
|
|
|
|
static void mfc_sr1_set(struct spu *spu, u64 sr1)
|
|
|
{
|
|
|
- out_be64(&spu->priv1->mfc_sr1_RW, sr1);
|
|
|
+ out_be64(&spu_get_pdata(spu)->priv1->mfc_sr1_RW, sr1);
|
|
|
}
|
|
|
|
|
|
static u64 mfc_sr1_get(struct spu *spu)
|
|
|
{
|
|
|
- return in_be64(&spu->priv1->mfc_sr1_RW);
|
|
|
+ return in_be64(&spu_get_pdata(spu)->priv1->mfc_sr1_RW);
|
|
|
}
|
|
|
|
|
|
static void mfc_tclass_id_set(struct spu *spu, u64 tclass_id)
|
|
|
{
|
|
|
- out_be64(&spu->priv1->mfc_tclass_id_RW, tclass_id);
|
|
|
+ out_be64(&spu_get_pdata(spu)->priv1->mfc_tclass_id_RW, tclass_id);
|
|
|
}
|
|
|
|
|
|
static u64 mfc_tclass_id_get(struct spu *spu)
|
|
|
{
|
|
|
- return in_be64(&spu->priv1->mfc_tclass_id_RW);
|
|
|
+ return in_be64(&spu_get_pdata(spu)->priv1->mfc_tclass_id_RW);
|
|
|
}
|
|
|
|
|
|
static void tlb_invalidate(struct spu *spu)
|
|
|
{
|
|
|
- out_be64(&spu->priv1->tlb_invalidate_entry_W, 0ul);
|
|
|
+ out_be64(&spu_get_pdata(spu)->priv1->tlb_invalidate_entry_W, 0ul);
|
|
|
}
|
|
|
|
|
|
static void resource_allocation_groupID_set(struct spu *spu, u64 id)
|
|
|
{
|
|
|
- out_be64(&spu->priv1->resource_allocation_groupID_RW, id);
|
|
|
+ out_be64(&spu_get_pdata(spu)->priv1->resource_allocation_groupID_RW,
|
|
|
+ id);
|
|
|
}
|
|
|
|
|
|
static u64 resource_allocation_groupID_get(struct spu *spu)
|
|
|
{
|
|
|
- return in_be64(&spu->priv1->resource_allocation_groupID_RW);
|
|
|
+ return in_be64(
|
|
|
+ &spu_get_pdata(spu)->priv1->resource_allocation_groupID_RW);
|
|
|
}
|
|
|
|
|
|
static void resource_allocation_enable_set(struct spu *spu, u64 enable)
|
|
|
{
|
|
|
- out_be64(&spu->priv1->resource_allocation_enable_RW, enable);
|
|
|
+ out_be64(&spu_get_pdata(spu)->priv1->resource_allocation_enable_RW,
|
|
|
+ enable);
|
|
|
}
|
|
|
|
|
|
static u64 resource_allocation_enable_get(struct spu *spu)
|
|
|
{
|
|
|
- return in_be64(&spu->priv1->resource_allocation_enable_RW);
|
|
|
+ return in_be64(
|
|
|
+ &spu_get_pdata(spu)->priv1->resource_allocation_enable_RW);
|
|
|
}
|
|
|
|
|
|
const struct spu_priv1_ops spu_priv1_mmio_ops =
|
Geoff Levand