#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/module.h>
+#include <linux/pci.h>
#include <linux/poll.h>
#include <linux/ptrace.h>
#include <linux/slab.h>
#include <linux/wait.h>
+#include <asm/firmware.h>
#include <asm/io.h>
#include <asm/prom.h>
#include <linux/mutex.h>
#include <asm/spu.h>
#include <asm/spu_priv1.h>
#include <asm/mmu_context.h>
+#include <asm/xmon.h>
#include "interrupt.h"
static int __spu_trap_invalid_dma(struct spu *spu)
{
pr_debug("%s\n", __FUNCTION__);
- force_sig(SIGBUS, /* info, */ current);
+ spu->dma_callback(spu, SPE_EVENT_INVALID_DMA);
return 0;
}
static int __spu_trap_dma_align(struct spu *spu)
{
pr_debug("%s\n", __FUNCTION__);
- force_sig(SIGBUS, /* info, */ current);
+ spu->dma_callback(spu, SPE_EVENT_DMA_ALIGNMENT);
return 0;
}
static int __spu_trap_error(struct spu *spu)
{
pr_debug("%s\n", __FUNCTION__);
- force_sig(SIGILL, /* info, */ current);
+ spu->dma_callback(spu, SPE_EVENT_SPE_ERROR);
return 0;
}
printk("%s: invalid access during switch!\n", __func__);
return 1;
}
- if (!mm || (REGION_ID(ea) != USER_REGION_ID)) {
+ esid = (ea & ESID_MASK) | SLB_ESID_V;
+
+ switch(REGION_ID(ea)) {
+ case USER_REGION_ID:
+#ifdef CONFIG_HUGETLB_PAGE
+ if (in_hugepage_area(mm->context, ea))
+ llp = mmu_psize_defs[mmu_huge_psize].sllp;
+ else
+#endif
+ llp = mmu_psize_defs[mmu_virtual_psize].sllp;
+ vsid = (get_vsid(mm->context.id, ea) << SLB_VSID_SHIFT) |
+ SLB_VSID_USER | llp;
+ break;
+ case VMALLOC_REGION_ID:
+ llp = mmu_psize_defs[mmu_virtual_psize].sllp;
+ vsid = (get_kernel_vsid(ea) << SLB_VSID_SHIFT) |
+ SLB_VSID_KERNEL | llp;
+ break;
+ case KERNEL_REGION_ID:
+ llp = mmu_psize_defs[mmu_linear_psize].sllp;
+ vsid = (get_kernel_vsid(ea) << SLB_VSID_SHIFT) |
+ SLB_VSID_KERNEL | llp;
+ break;
+ default:
/* Future: support kernel segments so that drivers
* can use SPUs.
*/
return 1;
}
- esid = (ea & ESID_MASK) | SLB_ESID_V;
-#ifdef CONFIG_HUGETLB_PAGE
- if (in_hugepage_area(mm->context, ea))
- llp = mmu_psize_defs[mmu_huge_psize].sllp;
- else
-#endif
- llp = mmu_psize_defs[mmu_virtual_psize].sllp;
- vsid = (get_vsid(mm->context.id, ea) << SLB_VSID_SHIFT) |
- SLB_VSID_USER | llp;
-
out_be64(&priv2->slb_index_W, spu->slb_replace);
out_be64(&priv2->slb_vsid_RW, vsid);
out_be64(&priv2->slb_esid_RW, esid);
}
static irqreturn_t
-spu_irq_class_0(int irq, void *data, struct pt_regs *regs)
+spu_irq_class_0(int irq, void *data)
{
struct spu *spu;
EXPORT_SYMBOL_GPL(spu_irq_class_0_bottom);
static irqreturn_t
-spu_irq_class_1(int irq, void *data, struct pt_regs *regs)
+spu_irq_class_1(int irq, void *data)
{
struct spu *spu;
unsigned long stat, mask, dar, dsisr;
EXPORT_SYMBOL_GPL(spu_irq_class_1_bottom);
static irqreturn_t
-spu_irq_class_2(int irq, void *data, struct pt_regs *regs)
+spu_irq_class_2(int irq, void *data)
{
struct spu *spu;
unsigned long stat;
free_irq(spu->irqs[2], spu);
}
-static LIST_HEAD(spu_list);
+static struct list_head spu_list[MAX_NUMNODES];
+static LIST_HEAD(spu_full_list);
static DEFINE_MUTEX(spu_mutex);
static void spu_init_channels(struct spu *spu)
}
}
-struct spu *spu_alloc(void)
+struct spu *spu_alloc_node(int node)
{
- struct spu *spu;
+ struct spu *spu = NULL;
mutex_lock(&spu_mutex);
- if (!list_empty(&spu_list)) {
- spu = list_entry(spu_list.next, struct spu, list);
+ if (!list_empty(&spu_list[node])) {
+ spu = list_entry(spu_list[node].next, struct spu, list);
list_del_init(&spu->list);
- pr_debug("Got SPU %x %d\n", spu->isrc, spu->number);
- } else {
- pr_debug("No SPU left\n");
- spu = NULL;
+ pr_debug("Got SPU %d %d\n", spu->number, spu->node);
+ spu_init_channels(spu);
}
mutex_unlock(&spu_mutex);
- if (spu)
- spu_init_channels(spu);
+ return spu;
+}
+EXPORT_SYMBOL_GPL(spu_alloc_node);
+
+struct spu *spu_alloc(void)
+{
+ struct spu *spu = NULL;
+ int node;
+
+ for (node = 0; node < MAX_NUMNODES; node++) {
+ spu = spu_alloc_node(node);
+ if (spu)
+ break;
+ }
return spu;
}
-EXPORT_SYMBOL_GPL(spu_alloc);
void spu_free(struct spu *spu)
{
mutex_lock(&spu_mutex);
- list_add_tail(&spu->list, &spu_list);
+ list_add_tail(&spu->list, &spu_list[spu->node]);
mutex_unlock(&spu_mutex);
}
EXPORT_SYMBOL_GPL(spu_free);
}
/* This function shall be abstracted for HV platforms */
-static int __init spu_map_interrupts(struct spu *spu, struct device_node *np)
+static int __init spu_map_interrupts_old(struct spu *spu, struct device_node *np)
{
- struct irq_host *host;
unsigned int isrc;
const u32 *tmp;
- host = iic_get_irq_host(spu->node);
- if (host == NULL)
- return -ENODEV;
-
- /* Get the interrupt source from the device-tree */
+ /* Get the interrupt source unit from the device-tree */
tmp = get_property(np, "isrc", NULL);
if (!tmp)
return -ENODEV;
- spu->isrc = isrc = tmp[0];
+ isrc = tmp[0];
+
+ /* Add the node number */
+ isrc |= spu->node << IIC_IRQ_NODE_SHIFT;
/* Now map interrupts of all 3 classes */
- spu->irqs[0] = irq_create_mapping(host, 0x00 | isrc);
- spu->irqs[1] = irq_create_mapping(host, 0x10 | isrc);
- spu->irqs[2] = irq_create_mapping(host, 0x20 | isrc);
+ 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(struct spu *spu, struct device_node *node)
+static int __init spu_map_device_old(struct spu *spu, struct device_node *node)
{
const char *prop;
int ret;
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)
+ goto err;
+
+ ret = -EINVAL;
+ spu->irqs[i] = irq_create_of_mapping(oirq.controller,
+ oirq.specifier, oirq.size);
+ if (spu->irqs[i] == NO_IRQ)
+ 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 device_node *node, int nr,
+ void __iomem** virt, unsigned long *phys)
+{
+ struct resource resource = { };
+ int ret;
+
+ ret = of_address_to_resource(node, 0, &resource);
+ if (ret)
+ goto out;
+
+ if (phys)
+ *phys = resource.start;
+ *virt = ioremap(resource.start, resource.end - resource.start);
+ if (!*virt)
+ ret = -EINVAL;
+
+out:
+ return ret;
+}
+
+static int __init spu_map_device(struct spu *spu, struct device_node *node)
+{
+ int ret = -ENODEV;
+ spu->name = get_property(node, "name", NULL);
+ if (!spu->name)
+ goto out;
+
+ ret = spu_map_resource(node, 0, (void __iomem**)&spu->local_store,
+ &spu->local_store_phys);
+ if (ret)
+ goto out;
+ ret = spu_map_resource(node, 1, (void __iomem**)&spu->problem,
+ &spu->problem_phys);
+ if (ret)
+ goto out_unmap;
+ ret = spu_map_resource(node, 2, (void __iomem**)&spu->priv2,
+ NULL);
+ if (ret)
+ goto out_unmap;
+
+ if (!firmware_has_feature(FW_FEATURE_LPAR))
+ ret = spu_map_resource(node, 3, (void __iomem**)&spu->priv1,
+ NULL);
+ if (ret)
+ goto out_unmap;
+ return 0;
+
+out_unmap:
+ spu_unmap(spu);
+out:
+ pr_debug("failed to map spe %s: %d\n", spu->name, ret);
+ return ret;
+}
+
struct sysdev_class spu_sysdev_class = {
set_kset_name("spu")
};
-static ssize_t spu_show_isrc(struct sys_device *sysdev, char *buf)
+int spu_add_sysdev_attr(struct sysdev_attribute *attr)
+{
+ struct spu *spu;
+ mutex_lock(&spu_mutex);
+
+ list_for_each_entry(spu, &spu_full_list, full_list)
+ sysdev_create_file(&spu->sysdev, attr);
+
+ mutex_unlock(&spu_mutex);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(spu_add_sysdev_attr);
+
+int spu_add_sysdev_attr_group(struct attribute_group *attrs)
{
- struct spu *spu = container_of(sysdev, struct spu, sysdev);
- return sprintf(buf, "%d\n", spu->isrc);
+ struct spu *spu;
+ mutex_lock(&spu_mutex);
+
+ list_for_each_entry(spu, &spu_full_list, full_list)
+ sysfs_create_group(&spu->sysdev.kobj, attrs);
+
+ mutex_unlock(&spu_mutex);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(spu_add_sysdev_attr_group);
+
+
+void spu_remove_sysdev_attr(struct sysdev_attribute *attr)
+{
+ struct spu *spu;
+ mutex_lock(&spu_mutex);
+ list_for_each_entry(spu, &spu_full_list, full_list)
+ sysdev_remove_file(&spu->sysdev, attr);
+
+ mutex_unlock(&spu_mutex);
}
-static SYSDEV_ATTR(isrc, 0400, spu_show_isrc, NULL);
+EXPORT_SYMBOL_GPL(spu_remove_sysdev_attr);
+
+void spu_remove_sysdev_attr_group(struct attribute_group *attrs)
+{
+ struct spu *spu;
+ mutex_lock(&spu_mutex);
-extern int attach_sysdev_to_node(struct sys_device *dev, int nid);
+ list_for_each_entry(spu, &spu_full_list, full_list)
+ sysfs_remove_group(&spu->sysdev.kobj, attrs);
+
+ mutex_unlock(&spu_mutex);
+}
+EXPORT_SYMBOL_GPL(spu_remove_sysdev_attr_group);
static int spu_create_sysdev(struct spu *spu)
{
return ret;
}
- if (spu->isrc != 0)
- sysdev_create_file(&spu->sysdev, &attr_isrc);
sysfs_add_device_to_node(&spu->sysdev, spu->nid);
return 0;
static void spu_destroy_sysdev(struct spu *spu)
{
- sysdev_remove_file(&spu->sysdev, &attr_isrc);
sysfs_remove_device_from_node(&spu->sysdev, spu->nid);
sysdev_unregister(&spu->sysdev);
}
if (!spu)
goto out;
- ret = spu_map_device(spu, spe);
- if (ret)
- goto out_free;
-
spu->node = find_spu_node_id(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");
+ return -ENODEV;
+ }
spu->nid = of_node_to_nid(spe);
if (spu->nid == -1)
spu->nid = 0;
+
+ ret = spu_map_device(spu, spe);
+ /* 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;
spin_lock_init(&spu->register_lock);
- spu_mfc_sdr_set(spu, mfspr(SPRN_SDR1));
+ spu_mfc_sdr_setup(spu);
spu_mfc_sr1_set(spu, 0x33);
mutex_lock(&spu_mutex);
spu->number = number++;
ret = spu_request_irqs(spu);
if (ret)
- goto out_unmap;
+ goto out_unlock;
ret = spu_create_sysdev(spu);
if (ret)
goto out_free_irqs;
- list_add(&spu->list, &spu_list);
+ list_add(&spu->list, &spu_list[spu->node]);
+ list_add(&spu->full_list, &spu_full_list);
+ spu->devnode = of_node_get(spe);
+
mutex_unlock(&spu_mutex);
- pr_debug(KERN_DEBUG "Using SPE %s %02x %p %p %p %p %d\n",
- spu->name, spu->isrc, spu->local_store,
+ pr_debug(KERN_DEBUG "Using SPE %s %p %p %p %p %d\n",
+ spu->name, spu->local_store,
spu->problem, spu->priv1, spu->priv2, spu->number);
goto out;
out_free_irqs:
spu_free_irqs(spu);
-
-out_unmap:
+out_unlock:
mutex_unlock(&spu_mutex);
+out_unmap:
spu_unmap(spu);
out_free:
kfree(spu);
static void destroy_spu(struct spu *spu)
{
list_del_init(&spu->list);
+ list_del_init(&spu->full_list);
+
+ of_node_put(spu->devnode);
spu_destroy_sysdev(spu);
spu_free_irqs(spu);
static void cleanup_spu_base(void)
{
struct spu *spu, *tmp;
+ int node;
+
mutex_lock(&spu_mutex);
- list_for_each_entry_safe(spu, tmp, &spu_list, list)
- destroy_spu(spu);
+ for (node = 0; node < MAX_NUMNODES; node++) {
+ list_for_each_entry_safe(spu, tmp, &spu_list[node], list)
+ destroy_spu(spu);
+ }
mutex_unlock(&spu_mutex);
sysdev_class_unregister(&spu_sysdev_class);
}
static int __init init_spu_base(void)
{
struct device_node *node;
- int ret;
+ int i, ret;
/* create sysdev class for spus */
ret = sysdev_class_register(&spu_sysdev_class);
if (ret)
return ret;
+ for (i = 0; i < MAX_NUMNODES; i++)
+ INIT_LIST_HEAD(&spu_list[i]);
+
ret = -ENODEV;
for (node = of_find_node_by_type(NULL, "spe");
node; node = of_find_node_by_type(node, "spe")) {
break;
}
}
- /* in some old firmware versions, the spe is called 'spc', so we
- look for that as well */
- for (node = of_find_node_by_type(NULL, "spc");
- node; node = of_find_node_by_type(node, "spc")) {
- ret = create_spu(node);
- if (ret) {
- printk(KERN_WARNING "%s: Error initializing %s\n",
- __FUNCTION__, node->name);
- cleanup_spu_base();
- break;
- }
- }
+
+ xmon_register_spus(&spu_full_list);
+
return ret;
}
module_init(init_spu_base);
projects / linux-2.6 / blobdiff