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drm/i915/gtt: Introduce struct i915_page_dma

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All our paging structures have struct page and dma address
for that page.

Add struct for page/dma address pairs and use it to make
the setup and teardown for different paging structures
identical.

Include the page directory offset also in the struct for legacy
gens. Rename it to clearly point out that it is offset into the
ggtt.

v2: Add comment about ggtt_offset (Michel)

Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Michel Thierry <michel.thierry@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Mika Kuoppala
2015-06-25 18:35:07 +03:00
committed by Daniel Vetter
parent d852c7bf90
commit 44159ddbea
3 changed files with 65 additions and 84 deletions
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2
drivers/gpu/drm/i915/i915_debugfs.c
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@@ -2227,7 +2227,7 @@ static void gen6_ppgtt_info(struct seq_file *m, struct drm_device *dev)
struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
seq_puts(m, "aliasing PPGTT:\n");
seq_printf(m, "pd gtt offset: 0x%08x\n", ppgtt->pd.pd_offset);
seq_printf(m, "pd gtt offset: 0x%08x\n", ppgtt->pd.base.ggtt_offset);
ppgtt->debug_dump(ppgtt, m);
}