In a couple of places, we have an i915_address_space that we know is
really an i915_ggtt that we want to use. Create an inline helper to
convert from the i915_address_space subclass into its container.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
Cc: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxxxxxxxx>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_gem_gtt.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 0d666b3f7e9b..4ddf2ed8501f 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -93,6 +93,13 @@
*
*/
+static inline struct i915_ggtt *
+i915_vm_to_ggtt(struct i915_address_space *vm)
+{
+ GEM_BUG_ON(!i915_is_ggtt(vm));
+ return container_of(vm, struct i915_ggtt, base);
+}
+
static int
i915_get_ggtt_vma_pages(struct i915_vma *vma);
@@ -2358,7 +2365,7 @@ static void gen8_ggtt_insert_entries(struct i915_address_space *vm,
enum i915_cache_level level, u32 unused)
{
struct drm_i915_private *dev_priv = to_i915(vm->dev);
- struct i915_ggtt *ggtt = &dev_priv->ggtt;
+ struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm);
unsigned first_entry = start >> PAGE_SHIFT;
gen8_pte_t __iomem *gtt_entries =
(gen8_pte_t __iomem *)ggtt->gsm + first_entry;
@@ -2436,7 +2443,7 @@ static void gen6_ggtt_insert_entries(struct i915_address_space *vm,
enum i915_cache_level level, u32 flags)
{
struct drm_i915_private *dev_priv = to_i915(vm->dev);
- struct i915_ggtt *ggtt = &dev_priv->ggtt;
+ struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm);
unsigned first_entry = start >> PAGE_SHIFT;
gen6_pte_t __iomem *gtt_entries =
(gen6_pte_t __iomem *)ggtt->gsm + first_entry;
@@ -2480,7 +2487,7 @@ static void gen8_ggtt_clear_range(struct i915_address_space *vm,
bool use_scratch)
{
struct drm_i915_private *dev_priv = to_i915(vm->dev);
- struct i915_ggtt *ggtt = &dev_priv->ggtt;
+ struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm);
unsigned first_entry = start >> PAGE_SHIFT;
unsigned num_entries = length >> PAGE_SHIFT;
gen8_pte_t scratch_pte, __iomem *gtt_base =
@@ -2512,7 +2519,7 @@ static void gen6_ggtt_clear_range(struct i915_address_space *vm,
bool use_scratch)
{
struct drm_i915_private *dev_priv = to_i915(vm->dev);
- struct i915_ggtt *ggtt = &dev_priv->ggtt;
+ struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm);
unsigned first_entry = start >> PAGE_SHIFT;
unsigned num_entries = length >> PAGE_SHIFT;
gen6_pte_t scratch_pte, __iomem *gtt_base =
--
2.8.1
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