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iommu/io-pgtable-arm: Use address conversion consistently

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Use consistent address conversions in the driver:
- virt_to_phys(): For all virtual to physical address conversion,
  convert __pa users as we don’t need to rely on it type casting.
- phys_to_virt(): For all physical to virtual address conversion,
  similarly, convert __va users.

That changes nothing at all. However, it will be useful when
compiling this file for the KVM hypervisor as it can cleanly
replace virt_to_phys/phys_to_virt

Signed-off-by: Mostafa Saleh <smostafa@google.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
This commit is contained in:
Mostafa Saleh
2026-05-13 21:52:03 +00:00
committed by Joerg Roedel
parent d996116cde
commit adb77e7576
1 changed files with 2 additions and 2 deletions
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4
drivers/iommu/io-pgtable-arm.c
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@@ -143,7 +143,7 @@
#define ARM_MALI_LPAE_MEMATTR_WRITE_ALLOC 0x8DULL
/* IOPTE accessors */
#define iopte_deref(pte,d) __va(iopte_to_paddr(pte, d))
#define iopte_deref(pte, d) phys_to_virt(iopte_to_paddr(pte, d))
#define iopte_type(pte) \
(((pte) >> ARM_LPAE_PTE_TYPE_SHIFT) & ARM_LPAE_PTE_TYPE_MASK)
@@ -429,7 +429,7 @@ static arm_lpae_iopte arm_lpae_install_table(arm_lpae_iopte *table,
arm_lpae_iopte old, new;
struct io_pgtable_cfg *cfg = &data->iop.cfg;
new = paddr_to_iopte(__pa(table), data) | ARM_LPAE_PTE_TYPE_TABLE;
new = paddr_to_iopte(virt_to_phys(table), data) | ARM_LPAE_PTE_TYPE_TABLE;
if (cfg->quirks & IO_PGTABLE_QUIRK_ARM_NS)
new |= ARM_LPAE_PTE_NSTABLE;