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iommu/amd: Introduce per PCI segment alias table size

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It will replace global "alias_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/20220706113825.25582-13-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Vasant Hegde
2022-07-06 17:08:02 +05:30
committed by Joerg Roedel
parent b5c852907e
commit 74ce42a9ab
2 changed files with 6 additions and 2 deletions
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3
drivers/iommu/amd/amd_iommu_types.h
View File

@@ -558,6 +558,9 @@ struct amd_iommu_pci_seg {
/* Size of the device table */
u32 dev_table_size;
/* Size of the alias table */
u32 alias_table_size;
/*
* device table virtual address
*

5
drivers/iommu/amd/init.c
View File

@@ -712,7 +712,7 @@ static int __init alloc_alias_table(struct amd_iommu_pci_seg *pci_seg)
int i;
pci_seg->alias_table = (void *)__get_free_pages(GFP_KERNEL,
get_order(alias_table_size));
get_order(pci_seg->alias_table_size));
if (!pci_seg->alias_table)
return -ENOMEM;
@@ -728,7 +728,7 @@ static int __init alloc_alias_table(struct amd_iommu_pci_seg *pci_seg)
static void __init free_alias_table(struct amd_iommu_pci_seg *pci_seg)
{
free_pages((unsigned long)pci_seg->alias_table,
get_order(alias_table_size));
get_order(pci_seg->alias_table_size));
pci_seg->alias_table = NULL;
}
@@ -1583,6 +1583,7 @@ static struct amd_iommu_pci_seg *__init alloc_pci_segment(u16 id,
pci_seg->last_bdf = last_bdf;
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->id = id;
init_llist_head(&pci_seg->dev_data_list);