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iommu/amd: Introduce per PCI segment rlookup table size 

It will replace global "rlookup_table_size" variable.

Co-developed-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Link: https://lore.kernel.org/r/20220706113825.25582-14-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Vasant Hegde 2022-07-06 17:08:03 +05:30 committed by Joerg Roedel
parent 74ce42a9ab
commit ec12dd1392
2 changed files with 9 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/iommu/amd/amd_iommu_types.h
View File

@ -561,6 +561,9 @@ struct amd_iommu_pci_seg {
/* Size of the alias table */
u32 alias_table_size;
/* Size of the rlookup table */
u32 rlookup_table_size;
/*
* device table virtual address
*

11
drivers/iommu/amd/init.c
View File

@ -672,7 +672,7 @@ static inline int __init alloc_rlookup_table(struct amd_iommu_pci_seg *pci_seg)
{
pci_seg->rlookup_table = (void *)__get_free_pages(
GFP_KERNEL | __GFP_ZERO,
get_order(rlookup_table_size));
get_order(pci_seg->rlookup_table_size));
if (pci_seg->rlookup_table == NULL)
return -ENOMEM;
@ -682,7 +682,7 @@ static inline int __init alloc_rlookup_table(struct amd_iommu_pci_seg *pci_seg)
static inline void free_rlookup_table(struct amd_iommu_pci_seg *pci_seg)
{
free_pages((unsigned long)pci_seg->rlookup_table,
get_order(rlookup_table_size));
get_order(pci_seg->rlookup_table_size));
pci_seg->rlookup_table = NULL;
}
@ -690,9 +690,9 @@ static inline int __init alloc_irq_lookup_table(struct amd_iommu_pci_seg *pci_se
{
pci_seg->irq_lookup_table = (void *)__get_free_pages(
GFP_KERNEL | __GFP_ZERO,
get_order(rlookup_table_size));
get_order(pci_seg->rlookup_table_size));
kmemleak_alloc(pci_seg->irq_lookup_table,
rlookup_table_size, 1, GFP_KERNEL);
pci_seg->rlookup_table_size, 1, GFP_KERNEL);
if (pci_seg->irq_lookup_table == NULL)
return -ENOMEM;
@ -703,7 +703,7 @@ static inline void free_irq_lookup_table(struct amd_iommu_pci_seg *pci_seg)
{
kmemleak_free(pci_seg->irq_lookup_table);
free_pages((unsigned long)pci_seg->irq_lookup_table,
get_order(rlookup_table_size));
get_order(pci_seg->rlookup_table_size));
pci_seg->irq_lookup_table = NULL;
}
@ -1584,6 +1584,7 @@ static struct amd_iommu_pci_seg *__init alloc_pci_segment(u16 id,
DUMP_printk("PCI segment : 0x%0x, last bdf : 0x%04x\n", id, last_bdf);
pci_seg->dev_table_size = tbl_size(DEV_TABLE_ENTRY_SIZE);
pci_seg->alias_table_size = tbl_size(ALIAS_TABLE_ENTRY_SIZE);
pci_seg->rlookup_table_size = tbl_size(RLOOKUP_TABLE_ENTRY_SIZE);
pci_seg->id = id;
init_llist_head(&pci_seg->dev_data_list);