[PATCH v1 3/3] drm/msm: Update the MMU helper function APIs

Jordan Crouse
2020-05-22T22:03:38Z

Instead of using a bare unsigned type for the length value for map/unmap
functions pass in a size_t to more correctly match up with the underlying
APIs.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
---

drivers/gpu/drm/msm/msm_gpummu.c | 4 ++--
drivers/gpu/drm/msm/msm_iommu.c | 4 ++--
drivers/gpu/drm/msm/msm_mmu.h | 4 ++--
3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/msm/msm_gpummu.c b/drivers/gpu/drm/msm/msm_gpummu.c
index 0ad0f848560a..310a31b05faa 100644
--- a/drivers/gpu/drm/msm/msm_gpummu.c
+++ b/drivers/gpu/drm/msm/msm_gpummu.c
@@ -26,7 +26,7 @@ static void msm_gpummu_detach(struct msm_mmu *mmu)
}

static int msm_gpummu_map(struct msm_mmu *mmu, uint64_t iova,
- struct sg_table *sgt, unsigned len, int prot)
+ struct sg_table *sgt, size_t len, int prot)
{
struct msm_gpummu *gpummu = to_msm_gpummu(mmu);
unsigned idx = (iova - GPUMMU_VA_START) / GPUMMU_PAGE_SIZE;
@@ -54,7 +54,7 @@ static int msm_gpummu_map(struct msm_mmu *mmu, uint64_t iova,
return 0;
}

-static int msm_gpummu_unmap(struct msm_mmu *mmu, uint64_t iova, unsigned len)
+static int msm_gpummu_unmap(struct msm_mmu *mmu, uint64_t iova, size_t len)
{
struct msm_gpummu *gpummu = to_msm_gpummu(mmu);
unsigned idx = (iova - GPUMMU_VA_START) / GPUMMU_PAGE_SIZE;
diff --git a/drivers/gpu/drm/msm/msm_iommu.c b/drivers/gpu/drm/msm/msm_iommu.c
index 627e1187d8aa..f8d5a294e1be 100644
--- a/drivers/gpu/drm/msm/msm_iommu.c
+++ b/drivers/gpu/drm/msm/msm_iommu.c
@@ -38,7 +38,7 @@ static void msm_iommu_detach(struct msm_mmu *mmu)
}

static int msm_iommu_map(struct msm_mmu *mmu, uint64_t iova,
- struct sg_table *sgt, unsigned len, int prot)
+ struct sg_table *sgt, size_t len, int prot)
{
struct msm_iommu *iommu = to_msm_iommu(mmu);
size_t ret;
@@ -49,7 +49,7 @@ static int msm_iommu_map(struct msm_mmu *mmu, uint64_t iova,
return (ret == len) ? 0 : -EINVAL;
}

-static int msm_iommu_unmap(struct msm_mmu *mmu, uint64_t iova, unsigned len)
+static int msm_iommu_unmap(struct msm_mmu *mmu, uint64_t iova, size_t len)
{
struct msm_iommu *iommu = to_msm_iommu(mmu);

diff --git a/drivers/gpu/drm/msm/msm_mmu.h b/drivers/gpu/drm/msm/msm_mmu.h
index bae9e8e67ec1..3a534ee59bf6 100644
--- a/drivers/gpu/drm/msm/msm_mmu.h
+++ b/drivers/gpu/drm/msm/msm_mmu.h
@@ -12,8 +12,8 @@
struct msm_mmu_funcs {
void (*detach)(struct msm_mmu *mmu);
int (*map)(struct msm_mmu *mmu, uint64_t iova, struct sg_table *sgt,
- unsigned len, int prot);
- int (*unmap)(struct msm_mmu *mmu, uint64_t iova, unsigned len);
+ size_t len, int prot);
+ int (*unmap)(struct msm_mmu *mmu, uint64_t iova, size_t len);
void (*destroy)(struct msm_mmu *mmu);
};

--
2.17.1