This should really have been added in BDW integration, as well as:
commit 93bd8649dba3155d1a0ba2a902d9c49f1c75a1da
Author: Ben Widawsky <ben@xxxxxxxxxxxx>
Date: Tue Jul 16 16:50:06 2013 -0700
drm/i915: Put the mm in the parent address space
It didn't really matter before, but it will in the future.
Signed-off-by: Ben Widawsky <ben@xxxxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_gem_gtt.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 96dbf3d..5ec4ba0 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -330,6 +330,8 @@ static void gen8_ppgtt_cleanup(struct i915_address_space *vm)
container_of(vm, struct i915_hw_ppgtt, base);
int i, j;
+ drm_mm_takedown(&vm->mm);
+
for (i = 0; i < ppgtt->num_pd_pages ; i++) {
if (ppgtt->pd_dma_addr[i]) {
pci_unmap_page(ppgtt->base.dev->pdev,
@@ -393,6 +395,8 @@ static int gen8_ppgtt_init(struct i915_hw_ppgtt *ppgtt, uint64_t size)
ppgtt->base.clear_range = gen8_ppgtt_clear_range;
ppgtt->base.insert_entries = gen8_ppgtt_insert_entries;
ppgtt->base.cleanup = gen8_ppgtt_cleanup;
+ ppgtt->base.start = 0;
+ ppgtt->base.total = ppgtt->num_pt_pages * GEN8_PTES_PER_PAGE * PAGE_SIZE;
BUG_ON(ppgtt->num_pd_pages > GEN8_LEGACY_PDPS);
@@ -644,6 +648,8 @@ static int gen6_ppgtt_init(struct i915_hw_ppgtt *ppgtt)
ppgtt->base.insert_entries = gen6_ppgtt_insert_entries;
ppgtt->base.cleanup = gen6_ppgtt_cleanup;
ppgtt->base.scratch = dev_priv->gtt.base.scratch;
+ ppgtt->base.start = 0;
+ ppgtt->base.total = GEN6_PPGTT_PD_ENTRIES * I915_PPGTT_PT_ENTRIES * PAGE_SIZE;
ppgtt->pt_pages = kcalloc(ppgtt->num_pd_entries, sizeof(struct page *),
GFP_KERNEL);
if (!ppgtt->pt_pages)
--
1.8.4.2
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