if (pasid_enabled(iommu)) {
if (ecap_prs(iommu->ecap))
intel_svm_finish_prq(iommu);
- intel_svm_free_pasid_tables(iommu);
+ intel_svm_exit(iommu);
}
#endif
}
hw_pass_through = 0;
#ifdef CONFIG_INTEL_IOMMU_SVM
if (pasid_enabled(iommu))
- intel_svm_alloc_pasid_tables(iommu);
+ intel_svm_init(iommu);
#endif
}
#ifdef CONFIG_INTEL_IOMMU_SVM
if (pasid_enabled(iommu))
- intel_svm_alloc_pasid_tables(iommu);
+ intel_svm_init(iommu);
#endif
if (dmaru->ignored) {
u64 val;
};
-int intel_svm_alloc_pasid_tables(struct intel_iommu *iommu)
+int intel_svm_init(struct intel_iommu *iommu)
{
struct page *pages;
int order;
iommu->pasid_max = 0x20000;
order = get_order(sizeof(struct pasid_entry) * iommu->pasid_max);
- pages = alloc_pages(GFP_KERNEL | __GFP_ZERO, order);
- if (!pages) {
- pr_warn("IOMMU: %s: Failed to allocate PASID table\n",
- iommu->name);
- return -ENOMEM;
- }
- iommu->pasid_table = page_address(pages);
- pr_info("%s: Allocated order %d PASID table.\n", iommu->name, order);
-
if (ecap_dis(iommu->ecap)) {
/* Just making it explicit... */
BUILD_BUG_ON(sizeof(struct pasid_entry) != sizeof(struct pasid_state_entry));
return 0;
}
-int intel_svm_free_pasid_tables(struct intel_iommu *iommu)
+int intel_svm_exit(struct intel_iommu *iommu)
{
int order = get_order(sizeof(struct pasid_entry) * iommu->pasid_max);
- if (iommu->pasid_table) {
- free_pages((unsigned long)iommu->pasid_table, order);
- iommu->pasid_table = NULL;
- }
if (iommu->pasid_state_table) {
free_pages((unsigned long)iommu->pasid_state_table, order);
iommu->pasid_state_table = NULL;
* devices away to userspace processes (e.g. for DPDK) and don't
* want to trust that userspace will use *only* the PASID it was
* told to. But while it's all driver-arbitrated, we're fine. */
- struct pasid_entry *pasid_table;
struct pasid_state_entry *pasid_state_table;
struct page_req_dsc *prq;
unsigned char prq_name[16]; /* Name for PRQ interrupt */
void *data), void *data);
#ifdef CONFIG_INTEL_IOMMU_SVM
-extern int intel_svm_alloc_pasid_tables(struct intel_iommu *iommu);
-extern int intel_svm_free_pasid_tables(struct intel_iommu *iommu);
+int intel_svm_init(struct intel_iommu *iommu);
+int intel_svm_exit(struct intel_iommu *iommu);
extern int intel_svm_enable_prq(struct intel_iommu *iommu);
extern int intel_svm_finish_prq(struct intel_iommu *iommu);