The multiple levels of indirect do nothing but hinder the compiler and
the pointer chasing turns to be quite painful but painless to fix.
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
---
drivers/gpu/drm/i915/i915_drv.h | 4 +---
drivers/gpu/drm/i915/i915_gem_gtt.c | 1 +
drivers/gpu/drm/i915/i915_gem_gtt.h | 2 ++
3 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 2ca11208983e..2a5343a9ed24 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2898,9 +2898,7 @@ bool i915_gem_obj_is_pinned(struct drm_i915_gem_object
*obj);
(&((struct drm_i915_private *)(obj)->base.dev->dev_private)->gtt.base)
static inline bool i915_is_ggtt(struct i915_address_space *vm)
{
- struct i915_address_space *ggtt =
- &((struct drm_i915_private *)(vm)->dev->dev_private)->gtt.base;
- return vm == ggtt;
+ return vm->is_ggtt;
}
static inline struct i915_hw_ppgtt *
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c
b/drivers/gpu/drm/i915/i915_gem_gtt.c
index a9f24236efd9..df1ee971138e 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -2511,6 +2511,7 @@ int i915_gem_gtt_init(struct drm_device *dev)
return ret;
gtt->base.dev = dev;
+ gtt->base.is_ggtt = true;
/* GMADR is the PCI mmio aperture into the global GTT. */
DRM_INFO("Memory usable by graphics device = %zdM\n",
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h
b/drivers/gpu/drm/i915/i915_gem_gtt.h
index fc03c99317c9..db9ec04d312c 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -235,6 +235,8 @@ struct i915_address_space {
unsigned long start; /* Start offset always 0 for dri2 */
size_t total; /* size addr space maps (ex. 2GB for ggtt) */
+ bool is_ggtt;
+
struct {
dma_addr_t addr;
struct page *page;
--
2.1.4
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