#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/module.h>
-#include <linux/poll.h>
#include <linux/ptrace.h>
#include <linux/slab.h>
#include <linux/wait.h>
-
-#include <asm/io.h>
-#include <asm/prom.h>
+#include <linux/mm.h>
+#include <linux/io.h>
#include <linux/mutex.h>
#include <asm/spu.h>
#include <asm/spu_priv1.h>
-#include <asm/mmu_context.h>
-
-#include "interrupt.h"
+#include <asm/xmon.h>
+const struct spu_management_ops *spu_management_ops;
const struct spu_priv1_ops *spu_priv1_ops;
EXPORT_SYMBOL_GPL(spu_priv1_ops);
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;
spu_irq_class_0_bottom(struct spu *spu)
{
unsigned long stat, mask;
+ unsigned long flags;
spu->class_0_pending = 0;
+ spin_lock_irqsave(&spu->register_lock, flags);
mask = spu_int_mask_get(spu, 0);
stat = spu_int_stat_get(spu, 0);
__spu_trap_error(spu);
spu_int_stat_clear(spu, 0, stat);
+ spin_unlock_irqrestore(&spu->register_lock, flags);
return (stat & 0x7) ? -EIO : 0;
}
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);
if (!error) {
spu_restart_dma(spu);
} else {
- __spu_trap_invalid_dma(spu);
+ spu->dma_callback(spu, SPE_EVENT_SPE_DATA_STORAGE);
}
return ret;
}
-static int __init find_spu_node_id(struct device_node *spe)
-{
- const unsigned int *id;
- struct device_node *cpu;
- cpu = spe->parent->parent;
- id = get_property(cpu, "node-id", NULL);
- return id ? *id : 0;
-}
+struct sysdev_class spu_sysdev_class = {
+ set_kset_name("spu")
+};
-static int __init cell_spuprop_present(struct spu *spu, struct device_node *spe,
- const char *prop)
+int spu_add_sysdev_attr(struct sysdev_attribute *attr)
{
- static DEFINE_MUTEX(add_spumem_mutex);
-
- 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->nid);
- zone = pgdata->node_zones;
+ struct spu *spu;
+ mutex_lock(&spu_mutex);
- /* XXX rethink locking here */
- mutex_lock(&add_spumem_mutex);
- ret = __add_pages(zone, start_pfn, nr_pages);
- mutex_unlock(&add_spumem_mutex);
+ list_for_each_entry(spu, &spu_full_list, full_list)
+ sysdev_create_file(&spu->sysdev, attr);
- return ret;
+ mutex_unlock(&spu_mutex);
+ return 0;
}
+EXPORT_SYMBOL_GPL(spu_add_sysdev_attr);
-static void __iomem * __init map_spe_prop(struct spu *spu,
- struct device_node *n, const char *name)
+int spu_add_sysdev_attr_group(struct attribute_group *attrs)
{
- 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;
+ struct spu *spu;
+ mutex_lock(&spu_mutex);
- ret = ioremap(prop->address, prop->len);
+ list_for_each_entry(spu, &spu_full_list, full_list)
+ sysfs_create_group(&spu->sysdev.kobj, attrs);
- out:
- return ret;
-}
-
-static void spu_unmap(struct spu *spu)
-{
- iounmap(spu->priv2);
- iounmap(spu->priv1);
- iounmap(spu->problem);
- iounmap((__force u8 __iomem *)spu->local_store);
+ mutex_unlock(&spu_mutex);
+ return 0;
}
+EXPORT_SYMBOL_GPL(spu_add_sysdev_attr_group);
-/* This function shall be abstracted for HV platforms */
-static int __init spu_map_interrupts(struct spu *spu, struct device_node *np)
-{
- unsigned int isrc;
- const u32 *tmp;
-
- /* Get the interrupt source unit from the device-tree */
- tmp = get_property(np, "isrc", NULL);
- if (!tmp)
- return -ENODEV;
- isrc = tmp[0];
-
- /* Add the node number */
- isrc |= spu->node << IIC_IRQ_NODE_SHIFT;
- spu->isrc = isrc;
-
- /* 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(struct spu *spu, struct device_node *node)
+void spu_remove_sysdev_attr(struct sysdev_attribute *attr)
{
- 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->priv1= map_spe_prop(spu, node, "priv1");
- /* priv1 is not available on a hypervisor */
+ struct spu *spu;
+ mutex_lock(&spu_mutex);
- spu->priv2= map_spe_prop(spu, node, "priv2");
- if (!spu->priv2)
- goto out_unmap;
- ret = 0;
- goto out;
+ list_for_each_entry(spu, &spu_full_list, full_list)
+ sysdev_remove_file(&spu->sysdev, attr);
-out_unmap:
- spu_unmap(spu);
-out:
- return ret;
+ mutex_unlock(&spu_mutex);
}
+EXPORT_SYMBOL_GPL(spu_remove_sysdev_attr);
-struct sysdev_class spu_sysdev_class = {
- set_kset_name("spu")
-};
-
-static ssize_t spu_show_isrc(struct sys_device *sysdev, char *buf)
+void spu_remove_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);
-}
-static SYSDEV_ATTR(isrc, 0400, spu_show_isrc, NULL);
+ list_for_each_entry(spu, &spu_full_list, full_list)
+ sysfs_remove_group(&spu->sysdev.kobj, attrs);
-extern int attach_sysdev_to_node(struct sys_device *dev, int nid);
+ 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);
+ sysfs_add_device_to_node(&spu->sysdev, spu->node);
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);
+ sysfs_remove_device_from_node(&spu->sysdev, spu->node);
sysdev_unregister(&spu->sysdev);
}
-static int __init create_spu(struct device_node *spe)
+static int __init create_spu(void *data)
{
struct spu *spu;
int ret;
if (!spu)
goto out;
- ret = spu_map_device(spu, spe);
+ spin_lock_init(&spu->register_lock);
+ mutex_lock(&spu_mutex);
+ spu->number = number++;
+ mutex_unlock(&spu_mutex);
+
+ ret = spu_create_spu(spu, data);
+
if (ret)
goto out_free;
- spu->node = find_spu_node_id(spe);
- spu->nid = of_node_to_nid(spe);
- if (spu->nid == -1)
- spu->nid = 0;
- ret = spu_map_interrupts(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_destroy;
ret = spu_create_sysdev(spu);
if (ret)
goto out_free_irqs;
- list_add(&spu->list, &spu_list);
+ mutex_lock(&spu_mutex);
+ list_add(&spu->list, &spu_list[spu->node]);
+ list_add(&spu->full_list, &spu_full_list);
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,
- spu->problem, spu->priv1, spu->priv2, spu->number);
goto out;
out_free_irqs:
spu_free_irqs(spu);
-
-out_unmap:
- mutex_unlock(&spu_mutex);
- spu_unmap(spu);
+out_destroy:
+ spu_destroy_spu(spu);
out_free:
kfree(spu);
out:
static void destroy_spu(struct spu *spu)
{
list_del_init(&spu->list);
+ list_del_init(&spu->full_list);
spu_destroy_sysdev(spu);
spu_free_irqs(spu);
- spu_unmap(spu);
+ spu_destroy_spu(spu);
kfree(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;
+
+ if (!spu_management_ops)
+ return 0;
/* create sysdev class for spus */
ret = sysdev_class_register(&spu_sysdev_class);
if (ret)
return ret;
- ret = -ENODEV;
- for (node = of_find_node_by_type(NULL, "spe");
- node; node = of_find_node_by_type(node, "spe")) {
- ret = create_spu(node);
- if (ret) {
- printk(KERN_WARNING "%s: Error initializing %s\n",
- __FUNCTION__, node->name);
- cleanup_spu_base();
- 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;
- }
+ for (i = 0; i < MAX_NUMNODES; i++)
+ INIT_LIST_HEAD(&spu_list[i]);
+
+ ret = spu_enumerate_spus(create_spu);
+
+ if (ret) {
+ printk(KERN_WARNING "%s: Error initializing spus\n",
+ __FUNCTION__);
+ cleanup_spu_base();
+ return ret;
}
+
+ xmon_register_spus(&spu_full_list);
+
return ret;
}
module_init(init_spu_base);
projects / linux-drm-fsl-dcu.git / blobdiff