drm/i915: Really share scratch page

A previous patch had set up the ppgtt and ggtt to use the same scratch
page, but still kept around both pointers. Kill it, it's not needed and
gets in our way for upcoming cleanups.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
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 91c1fdc6a4abac773bd93175bd290cd3d04219c8..af8eadf796a8a8ce33a4c6a3939e05339c955f28 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -492,7 +492,6 @@ struct i915_hw_ppgtt {
        struct page **pt_pages;
        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,

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 216e7a19e63d273c49d00afaf04544dbbae870ff..46b9e32b110927ce3e0a10e0ba2bf39ae1b7e7e0 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -188,13 +188,14 @@ static void gen6_ppgtt_clear_range(struct i915_hw_ppgtt *ppgtt,
                                   unsigned first_entry,
                                   unsigned num_entries)
 {
+       struct drm_i915_private *dev_priv = ppgtt->dev->dev_private;
        gen6_gtt_pte_t *pt_vaddr, scratch_pte;
        unsigned act_pt = first_entry / I915_PPGTT_PT_ENTRIES;
        unsigned first_pte = first_entry % I915_PPGTT_PT_ENTRIES;
        unsigned last_pte, i;
 
        scratch_pte = ppgtt->pte_encode(ppgtt->dev,
-                                       ppgtt->scratch_page_dma_addr,
+                                       dev_priv->gtt.scratch_page_dma,
                                        I915_CACHE_LLC);
 
        while (num_entries) {
@@ -351,7 +352,6 @@ static int i915_gem_init_aliasing_ppgtt(struct drm_device *dev)
                return -ENOMEM;
 
        ppgtt->dev = dev;
-       ppgtt->scratch_page_dma_addr = dev_priv->gtt.scratch_page_dma;
 
        if (INTEL_INFO(dev)->gen < 8)
                ret = gen6_ppgtt_init(ppgtt);