Commit ec12dd13 authored by Vasant Hegde's avatar Vasant Hegde Committed by Joerg Roedel
Browse files

iommu/amd: Introduce per PCI segment rlookup table size 



It will replace global "rlookup_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/20220706113825.25582-14-vasant.hegde@amd.com


Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent 74ce42a9

drivers/iommu/amd/amd_iommu_types.h

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

	 *

drivers/iommu/amd/init.c

+6 −5
Original line number Diff line number Diff line
@@ -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);