drm/i915: vfuncs for ppgtt
Like for the global gtt we want a notch more flexibility here. Only
big change (besides a few tiny function parameter adjustments) was to
move gen6_ppgtt_insert_entries up (and remove _sg_ from its name, we
only have one kind of insert_entries since the last gtt cleanup).
We could also extract the platform ppgtt setup/teardown code a bit
better, but I don't care that much.
With this we have the hw details of pte writing nicely hidden away
behind a bit of abstraction. Which should pave the way for
different/multiple ppgtts (e.g. what we need for real ppgtt support).
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index fb0815b..4be7c68 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -412,6 +412,15 @@
uint32_t pd_offset;
dma_addr_t *pt_dma_addr;
dma_addr_t scratch_page_dma_addr;
+
+ /* pte functions, mirroring the interface of the global gtt. */
+ void (*clear_range)(struct i915_hw_ppgtt *ppgtt,
+ unsigned int first_entry,
+ unsigned int num_entries);
+ void (*insert_entries)(struct i915_hw_ppgtt *ppgtt,
+ struct sg_table *st,
+ unsigned int pg_start,
+ enum i915_cache_level cache_level);
};
@@ -1662,7 +1671,6 @@
struct drm_file *file);
/* i915_gem_gtt.c */
-int __must_check i915_gem_init_aliasing_ppgtt(struct drm_device *dev);
void i915_gem_cleanup_aliasing_ppgtt(struct drm_device *dev);
void i915_ppgtt_bind_object(struct i915_hw_ppgtt *ppgtt,
struct drm_i915_gem_object *obj,