From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
It will be used by other call sites shortly.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_dma.c | 38 +++++++++++++++++++++++++++++
drivers/gpu/drm/i915/i915_gem_userptr.c | 43 ++-------------------------------
drivers/gpu/drm/i915/intel_drv.h | 4 +++
3 files changed, 44 insertions(+), 41 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 5b157bb..0b34571 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -2070,3 +2070,41 @@ int i915_driver_device_is_agp(struct drm_device *dev)
{
return 1;
}
+
+#if IS_ENABLED(CONFIG_SWIOTLB)
+#define swiotlb_active() swiotlb_nr_tbl()
+#else
+#define swiotlb_active() 0
+#endif
+
+int i915_st_set_pages(struct sg_table **st, struct page **pvec, int num_pages)
+{
+ struct scatterlist *sg;
+ int ret, n;
+
+ *st = kmalloc(sizeof(**st), GFP_KERNEL);
+ if (*st == NULL)
+ return -ENOMEM;
+
+ if (swiotlb_active()) {
+ ret = sg_alloc_table(*st, num_pages, GFP_KERNEL);
+ if (ret)
+ goto err;
+
+ for_each_sg((*st)->sgl, sg, num_pages, n)
+ sg_set_page(sg, pvec[n], PAGE_SIZE, 0);
+ } else {
+ ret = sg_alloc_table_from_pages(*st, pvec, num_pages,
+ 0, num_pages << PAGE_SHIFT,
+ GFP_KERNEL);
+ if (ret)
+ goto err;
+ }
+
+ return 0;
+
+err:
+ kfree(*st);
+ *st = NULL;
+ return ret;
+}
diff --git a/drivers/gpu/drm/i915/i915_gem_userptr.c b/drivers/gpu/drm/i915/i915_gem_userptr.c
index d384139..d3d55b3 100644
--- a/drivers/gpu/drm/i915/i915_gem_userptr.c
+++ b/drivers/gpu/drm/i915/i915_gem_userptr.c
@@ -479,45 +479,6 @@ struct get_pages_work {
struct task_struct *task;
};
-#if IS_ENABLED(CONFIG_SWIOTLB)
-#define swiotlb_active() swiotlb_nr_tbl()
-#else
-#define swiotlb_active() 0
-#endif
-
-static int
-st_set_pages(struct sg_table **st, struct page **pvec, int num_pages)
-{
- struct scatterlist *sg;
- int ret, n;
-
- *st = kmalloc(sizeof(**st), GFP_KERNEL);
- if (*st == NULL)
- return -ENOMEM;
-
- if (swiotlb_active()) {
- ret = sg_alloc_table(*st, num_pages, GFP_KERNEL);
- if (ret)
- goto err;
-
- for_each_sg((*st)->sgl, sg, num_pages, n)
- sg_set_page(sg, pvec[n], PAGE_SIZE, 0);
- } else {
- ret = sg_alloc_table_from_pages(*st, pvec, num_pages,
- 0, num_pages << PAGE_SHIFT,
- GFP_KERNEL);
- if (ret)
- goto err;
- }
-
- return 0;
-
-err:
- kfree(*st);
- *st = NULL;
- return ret;
-}
-
static void
__i915_gem_userptr_get_pages_worker(struct work_struct *_work)
{
@@ -557,7 +518,7 @@ __i915_gem_userptr_get_pages_worker(struct work_struct *_work)
if (obj->userptr.work != &work->work) {
ret = 0;
} else if (pinned == num_pages) {
- ret = st_set_pages(&obj->pages, pvec, num_pages);
+ ret = i915_st_set_pages(&obj->pages, pvec, num_pages);
if (ret == 0) {
list_add_tail(&obj->global_list, &to_i915(dev)->mm.unbound_list);
pinned = 0;
@@ -666,7 +627,7 @@ i915_gem_userptr_get_pages(struct drm_i915_gem_object *obj)
}
}
} else {
- ret = st_set_pages(&obj->pages, pvec, num_pages);
+ ret = i915_st_set_pages(&obj->pages, pvec, num_pages);
if (ret == 0) {
obj->userptr.work = NULL;
pinned = 0;
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 787d5af..7e208d6d 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -998,6 +998,10 @@ void vlv_power_sequencer_reset(struct drm_i915_private *dev_priv);
/* intel_dp_mst.c */
int intel_dp_mst_encoder_init(struct intel_digital_port *intel_dig_port, int conn_id);
void intel_dp_mst_encoder_cleanup(struct intel_digital_port *intel_dig_port);
+
+/* intel_dma.c */
+int i915_st_set_pages(struct sg_table **st, struct page **pvec, int num_pages);
+
/* intel_dsi.c */
void intel_dsi_init(struct drm_device *dev);
--
2.1.1
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