Commit 74ce42a9 authored by Vasant Hegde's avatar Vasant Hegde Committed by Joerg Roedel
Browse files

iommu/amd: Introduce per PCI segment alias table size 



It will replace global "alias_table_size" variable.

Co-developed-by: default avatarSuravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: default avatarSuravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: default avatarVasant Hegde <vasant.hegde@amd.com>
Link: https://lore.kernel.org/r/20220706113825.25582-13-vasant.hegde@amd.com


Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent b5c85290

drivers/iommu/amd/amd_iommu_types.h

+3 −0
Original line number Diff line number Diff line
@@ -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

	 *

drivers/iommu/amd/init.c

+3 −2
Original line number Diff line number Diff line
@@ -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);