{
kfree(dev->archdata.iommu);
}
+
+void __init amd_iommu_uninit_devices(void)
+{
+ struct pci_dev *pdev = NULL;
+
+ for_each_pci_dev(pdev) {
+
+ if (!check_device(&pdev->dev))
+ continue;
+
+ iommu_uninit_device(&pdev->dev);
+ }
+}
+
+int __init amd_iommu_init_devices(void)
+{
+ struct pci_dev *pdev = NULL;
+ int ret = 0;
+
+ for_each_pci_dev(pdev) {
+
+ if (!check_device(&pdev->dev))
+ continue;
+
+ ret = iommu_init_device(&pdev->dev);
+ if (ret)
+ goto out_free;
+ }
+
+ return 0;
+
+out_free:
+
+ amd_iommu_uninit_devices();
+
+ return ret;
+}
#ifdef CONFIG_AMD_IOMMU_STATS
/*
.notifier_call = device_change_notifier,
};
+void amd_iommu_init_notifier(void)
+{
+ bus_register_notifier(&pci_bus_type, &device_nb);
+}
+
/*****************************************************************************
*
* The next functions belong to the dma_ops mapping/unmapping code.
goto out;
/*
- * aperture was sucessfully enlarged by 128 MB, try
+ * aperture was successfully enlarged by 128 MB, try
* allocation again
*/
goto retry;
if (!check_device(&dev->dev))
continue;
- iommu_init_device(&dev->dev);
-
/* Is there already any domain for it? */
if (domain_for_device(&dev->dev))
continue;
register_iommu(&amd_iommu_ops);
- bus_register_notifier(&pci_bus_type, &device_nb);
-
amd_iommu_stats_init();
return 0;
struct pci_dev *dev = NULL;
u16 devid;
- /* allocate passthroug domain */
+ /* allocate passthrough domain */
pt_domain = protection_domain_alloc();
if (!pt_domain)
return -ENOMEM;
* 2008 Pekka Paalanen <pq@iki.fi>
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/list.h>
#include <linux/rculist.h>
#include <linux/spinlock.h>
pte_t *pte = lookup_address(f->page, &level);
if (!pte) {
- pr_err("kmmio: no pte for page 0x%08lx\n", f->page);
+ pr_err("no pte for page 0x%08lx\n", f->page);
return -1;
}
clear_pte_presence(pte, clear, &f->old_presence);
break;
default:
- pr_err("kmmio: unexpected page level 0x%x.\n", level);
+ pr_err("unexpected page level 0x%x.\n", level);
return -1;
}
static int arm_kmmio_fault_page(struct kmmio_fault_page *f)
{
int ret;
- WARN_ONCE(f->armed, KERN_ERR "kmmio page already armed.\n");
+ WARN_ONCE(f->armed, KERN_ERR pr_fmt("kmmio page already armed.\n"));
if (f->armed) {
- pr_warning("kmmio double-arm: page 0x%08lx, ref %d, old %d\n",
- f->page, f->count, !!f->old_presence);
+ pr_warning("double-arm: page 0x%08lx, ref %d, old %d\n",
+ f->page, f->count, !!f->old_presence);
}
ret = clear_page_presence(f, true);
- WARN_ONCE(ret < 0, KERN_ERR "kmmio arming 0x%08lx failed.\n", f->page);
+ WARN_ONCE(ret < 0, KERN_ERR pr_fmt("arming 0x%08lx failed.\n"),
+ f->page);
f->armed = true;
return ret;
}
*/
/*
* Interrupts are disabled on entry as trap3 is an interrupt gate
- * and they remain disabled thorough out this function.
+ * and they remain disabled throughout this function.
*/
int kmmio_handler(struct pt_regs *regs, unsigned long addr)
{
* condition needs handling by do_page_fault(), the
* page really not being present is the most common.
*/
- pr_debug("kmmio: secondary hit for 0x%08lx CPU %d.\n",
- addr, smp_processor_id());
+ pr_debug("secondary hit for 0x%08lx CPU %d.\n",
+ addr, smp_processor_id());
if (!faultpage->old_presence)
- pr_info("kmmio: unexpected secondary hit for "
- "address 0x%08lx on CPU %d.\n", addr,
- smp_processor_id());
+ pr_info("unexpected secondary hit for address 0x%08lx on CPU %d.\n",
+ addr, smp_processor_id());
} else {
/*
* Prevent overwriting already in-flight context.
* This should not happen, let's hope disarming at
* least prevents a panic.
*/
- pr_emerg("kmmio: recursive probe hit on CPU %d, "
- "for address 0x%08lx. Ignoring.\n",
- smp_processor_id(), addr);
- pr_emerg("kmmio: previous hit was at 0x%08lx.\n",
- ctx->addr);
+ pr_emerg("recursive probe hit on CPU %d, for address 0x%08lx. Ignoring.\n",
+ smp_processor_id(), addr);
+ pr_emerg("previous hit was at 0x%08lx.\n", ctx->addr);
disarm_kmmio_fault_page(faultpage);
}
goto no_kmmio_ctx;
/*
* Interrupts are disabled on entry as trap1 is an interrupt gate
- * and they remain disabled thorough out this function.
+ * and they remain disabled throughout this function.
* This must always get called as the pair to kmmio_handler().
*/
static int post_kmmio_handler(unsigned long condition, struct pt_regs *regs)
* something external causing them (f.e. using a debugger while
* mmio tracing enabled), or erroneous behaviour
*/
- pr_warning("kmmio: unexpected debug trap on CPU %d.\n",
- smp_processor_id());
+ pr_warning("unexpected debug trap on CPU %d.\n",
+ smp_processor_id());
goto out;
}
list_add_rcu(&p->list, &kmmio_probes);
while (size < size_lim) {
if (add_kmmio_fault_page(p->addr + size))
- pr_err("kmmio: Unable to set page fault.\n");
+ pr_err("Unable to set page fault.\n");
size += PAGE_SIZE;
}
out:
* 2. remove_kmmio_fault_pages()
* Remove the pages from kmmio_page_table.
* 3. rcu_free_kmmio_fault_pages()
- * Actally free the kmmio_fault_page structs as with RCU.
+ * Actually free the kmmio_fault_page structs as with RCU.
*/
void unregister_kmmio_probe(struct kmmio_probe *p)
{
drelease = kmalloc(sizeof(*drelease), GFP_ATOMIC);
if (!drelease) {
- pr_crit("kmmio: leaking kmmio_fault_page objects.\n");
+ pr_crit("leaking kmmio_fault_page objects.\n");
return;
}
drelease->release_list = release_list;
projects / linux-2.6-block.git / commitdiff