No one will use this function except in ttm_bo_vm.c now. So unexport it
and make it static.
Signed-off-by: Tan Xiaojun <tanxiaojun@xxxxxxxxxx>
---
drivers/gpu/drm/ttm/ttm_bo_vm.c | 23 +++++++++++++++--------
include/drm/ttm/ttm_bo_api.h | 11 -----------
2 files changed, 15 insertions(+), 19 deletions(-)
diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c
index e25a99b..ff70fc96 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_vm.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c
@@ -92,6 +92,21 @@ static int ttm_bo_vm_fault_idle(struct ttm_buffer_object *bo,
return ret;
}
+/**
+ * ttm_bo_default_iomem_pfn - get a pfn for a page offset
+ *
+ * @bo: the BO we need to look up the pfn for
+ * @page_offset: offset inside the BO to look up.
+ *
+ * Calculate the PFN for iomem based mappings during page fault
+ */
+static unsigned long ttm_bo_default_io_mem_pfn(struct ttm_buffer_object *bo,
+ unsigned long page_offset)
+{
+ return ((bo->mem.bus.base + bo->mem.bus.offset) >> PAGE_SHIFT)
+ + page_offset;
+}
+
static int ttm_bo_vm_fault(struct vm_fault *vmf)
{
struct vm_area_struct *vma = vmf->vma;
@@ -407,14 +422,6 @@ static struct ttm_buffer_object *ttm_bo_vm_lookup(struct ttm_bo_device *bdev,
return bo;
}
-unsigned long ttm_bo_default_io_mem_pfn(struct ttm_buffer_object *bo,
- unsigned long page_offset)
-{
- return ((bo->mem.bus.base + bo->mem.bus.offset) >> PAGE_SHIFT)
- + page_offset;
-}
-EXPORT_SYMBOL(ttm_bo_default_io_mem_pfn);
-
int ttm_bo_mmap(struct file *filp, struct vm_area_struct *vma,
struct ttm_bo_device *bdev)
{
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index fa07be1..0b1ce05 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -711,17 +711,6 @@ extern int ttm_fbdev_mmap(struct vm_area_struct *vma,
struct ttm_buffer_object *bo);
/**
- * ttm_bo_default_iomem_pfn - get a pfn for a page offset
- *
- * @bo: the BO we need to look up the pfn for
- * @page_offset: offset inside the BO to look up.
- *
- * Calculate the PFN for iomem based mappings during page fault
- */
-unsigned long ttm_bo_default_io_mem_pfn(struct ttm_buffer_object *bo,
- unsigned long page_offset);
-
-/**
* ttm_bo_mmap - mmap out of the ttm device address space.
*
* @filp: filp as input from the mmap method.
--
2.7.4
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