github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-07-31 11:37:06 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

iommu/riscv: Convert to use struct iommu_pages_list

Browse Source 
Change the internal freelist to use struct iommu_pages_list.

riscv uses this page list to free page table levels that are replaced
with leaf ptes.

Reviewed-by: Tomasz Jeznach <tjeznach@rivosinc.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/9-v4-c8663abbb606+3f7-iommu_pages_jgg@nvidia.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Jason Gunthorpe 2025-04-08 13:53:57 -03:00 committed by Joerg Roedel
parent 13f43d7cf3
commit d4d5153ad6
1 changed files with 5 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/iommu/riscv/iommu.c
View File

@ -1085,7 +1085,8 @@ static void riscv_iommu_iotlb_sync(struct iommu_domain *iommu_domain,
#define _io_pte_entry(pn, prot) ((_PAGE_PFN_MASK & ((pn) << _PAGE_PFN_SHIFT)) | (prot))
static void riscv_iommu_pte_free(struct riscv_iommu_domain *domain,
unsigned long pte, struct list_head *freelist)
unsigned long pte,
struct iommu_pages_list *freelist)
{
unsigned long *ptr;
int i;
@ -1103,7 +1104,7 @@ static void riscv_iommu_pte_free(struct riscv_iommu_domain *domain,
}
if (freelist)
list_add_tail(&virt_to_page(ptr)->lru, freelist);
iommu_pages_list_add(freelist, ptr);
else
iommu_free_pages(ptr);
}
@ -1192,7 +1193,7 @@ static int riscv_iommu_map_pages(struct iommu_domain *iommu_domain,
unsigned long *ptr;
unsigned long pte, old, pte_prot;
int rc = 0;
LIST_HEAD(freelist);
struct iommu_pages_list freelist = IOMMU_PAGES_LIST_INIT(freelist);
if (!(prot & IOMMU_WRITE))
pte_prot = _PAGE_BASE | _PAGE_READ;
@ -1223,7 +1224,7 @@ static int riscv_iommu_map_pages(struct iommu_domain *iommu_domain,
*mapped = size;
if (!list_empty(&freelist)) {
if (!iommu_pages_list_empty(&freelist)) {
/*
* In 1.0 spec version, the smallest scope we can use to
* invalidate all levels of page table (i.e. leaf and non-leaf)