@@ -19,12 +19,6 @@ static void etnaviv_context_unmap(struct etnaviv_iommu_context *context,
size_t unmapped_page, unmapped = 0;
size_t pgsize = SZ_4K;
- if (!IS_ALIGNED(iova | size, pgsize)) {
- pr_err("unaligned: iova 0x%lx size 0x%zx min_pagesz 0x%zx\n",
- iova, size, pgsize);
- return;
- }
-
while (unmapped < size) {
unmapped_page = context->global->ops->unmap(context, iova,
pgsize);
@@ -45,12 +39,6 @@ static int etnaviv_context_map(struct etnaviv_iommu_context *context,
size_t orig_size = size;
int ret = 0;
- if (!IS_ALIGNED(iova | paddr | size, pgsize)) {
- pr_err("unaligned: iova 0x%lx pa %pa size 0x%zx min_pagesz 0x%zx\n",
- iova, &paddr, size, pgsize);
- return -EINVAL;
- }
-
while (size) {
ret = context->global->ops->map(context, iova, paddr, pgsize,
prot);
@@ -88,6 +76,14 @@ static int etnaviv_iommu_map(struct etnaviv_iommu_context *context,
VERB("map[%d]: %08x %pap(%x)", i, da, &pa, bytes);
+ if (!IS_ALIGNED(iova | pa | bytes, SZ_4K)) {
+ dev_err(context->global->dev,
+ "unaligned: iova 0x%x pa %pa size 0x%x\n",
+ iova, &pa, bytes);
+ ret = -EINVAL;
+ goto fail;
+ }
+
ret = etnaviv_context_map(context, da, pa, bytes, prot);
if (ret)
goto fail;
Alignment checking is only needed to be done in the upper caller function. If those address and sizes are able to pass the check, it will certainly pass the same test in the etnaviv_context_unmap() function. We don't need examine it more than once. Remove redundant alignment tests, move the those useless to upper caller function. Signed-off-by: Sui Jingfeng <sui.jingfeng@linux.dev> --- drivers/gpu/drm/etnaviv/etnaviv_mmu.c | 20 ++++++++------------ 1 file changed, 8 insertions(+), 12 deletions(-)