Add "struct mtk_iommu_data *" in the "struct mtk_iommu_domain",
reduce the call mtk_iommu_get_m4u_data().
No functional change.
Signed-off-by: Yong Wu <yong...@mediatek.com>
---
drivers/iommu/mtk_iommu.c | 18 ++++++++++--------
1 file changed, 10 insertions(+), 8 deletions(-)
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 93ce4fa806cf..d0593d317240 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -123,6 +123,7 @@ struct mtk_iommu_domain {
struct io_pgtable_cfg cfg;
struct io_pgtable_ops *iop;
+ struct mtk_iommu_data *data;
struct iommu_domain domain;
};
@@ -348,7 +349,7 @@ static void mtk_iommu_config(struct mtk_iommu_data *data,
static int mtk_iommu_domain_finalise(struct mtk_iommu_domain *dom)
{
- struct mtk_iommu_data *data = mtk_iommu_get_m4u_data();
+ struct mtk_iommu_data *data = dom->data;
/* Use the exist domain as there is only one m4u pgtable here. */
if (data->m4u_dom) {
@@ -397,6 +398,7 @@ static struct iommu_domain *mtk_iommu_domain_alloc(unsigned
type)
if (iommu_get_dma_cookie(&dom->domain))
goto free_dom;
+ dom->data = data;
if (mtk_iommu_domain_finalise(dom))
goto put_dma_cookie;
@@ -469,10 +471,9 @@ static int mtk_iommu_map(struct iommu_domain *domain,
unsigned long iova,
phys_addr_t paddr, size_t size, int prot, gfp_t gfp)
{
struct mtk_iommu_domain *dom = to_mtk_domain(domain);
- struct mtk_iommu_data *data = mtk_iommu_get_m4u_data();
/* The "4GB mode" M4U physically can not use the lower remap of Dram. */
- if (data->enable_4GB)
+ if (dom->data->enable_4GB)
paddr |= BIT_ULL(32);
/* Synchronize with the tlb_lock */
@@ -490,31 +491,32 @@ static size_t mtk_iommu_unmap(struct iommu_domain *domain,
static void mtk_iommu_flush_iotlb_all(struct iommu_domain *domain)
{
- mtk_iommu_tlb_flush_all(mtk_iommu_get_m4u_data());
+ struct mtk_iommu_domain *dom = to_mtk_domain(domain);
+
+ mtk_iommu_tlb_flush_all(dom->data);
}
static void mtk_iommu_iotlb_sync(struct iommu_domain *domain,
struct iommu_iotlb_gather *gather)
{
- struct mtk_iommu_data *data = mtk_iommu_get_m4u_data();
+ struct mtk_iommu_domain *dom = to_mtk_domain(domain);
size_t length = gather->end - gather->start;
if (gather->start == ULONG_MAX)
return;
mtk_iommu_tlb_flush_range_sync(gather->start, length, gather->pgsize,
- data);
+ dom->data);
}
static phys_addr_t mtk_iommu_iova_to_phys(struct iommu_domain *domain,
dma_addr_t iova)
{
struct mtk_iommu_domain *dom = to_mtk_domain(domain);
- struct mtk_iommu_data *data = mtk_iommu_get_m4u_data();
phys_addr_t pa;
pa = dom->iop->iova_to_phys(dom->iop, iova);
- if (data->enable_4GB && pa >= MTK_IOMMU_4GB_MODE_REMAP_BASE)
+ if (dom->data->enable_4GB && pa >= MTK_IOMMU_4GB_MODE_REMAP_BASE)
pa &= ~BIT_ULL(32);
return pa;
--
2.18.0
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