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drm/i915: fixup pd vs pt confusion in gen6 ppgtt code

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The index variable points at a page table, not a page directory or a
pde. Ben Widawsky fix this up correctly in his ppgtt cleanup, but I've
botched the job and copy&pasted the old confusion from the original
gen6 ppgtt code in

commit def886c376
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Thu Jan 24 14:44:56 2013 -0800

    drm/i915: vfuncs for ppgtt

Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2013-03-19 23:48:39 +01:00
parent 6ddc4fc70a
commit a15326a57c
1 changed files with 7 additions and 7 deletions
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14
drivers/gpu/drm/i915/i915_gem_gtt.c
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@ -83,7 +83,7 @@ static void gen6_ppgtt_clear_range(struct i915_hw_ppgtt *ppgtt,
{
gtt_pte_t *pt_vaddr;
gtt_pte_t scratch_pte;
unsigned act_pd = first_entry / I915_PPGTT_PT_ENTRIES;
unsigned act_pt = first_entry / I915_PPGTT_PT_ENTRIES;
unsigned first_pte = first_entry % I915_PPGTT_PT_ENTRIES;
unsigned last_pte, i;
@ -96,7 +96,7 @@ static void gen6_ppgtt_clear_range(struct i915_hw_ppgtt *ppgtt,
if (last_pte > I915_PPGTT_PT_ENTRIES)
last_pte = I915_PPGTT_PT_ENTRIES;
pt_vaddr = kmap_atomic(ppgtt->pt_pages[act_pd]);
pt_vaddr = kmap_atomic(ppgtt->pt_pages[act_pt]);
for (i = first_pte; i < last_pte; i++)
pt_vaddr[i] = scratch_pte;
@ -105,7 +105,7 @@ static void gen6_ppgtt_clear_range(struct i915_hw_ppgtt *ppgtt,
num_entries -= last_pte - first_pte;
first_pte = 0;
act_pd++;
act_pt++;
}
}
@ -115,11 +115,11 @@ static void gen6_ppgtt_insert_entries(struct i915_hw_ppgtt *ppgtt,
enum i915_cache_level cache_level)
{
gtt_pte_t *pt_vaddr;
unsigned act_pd = first_entry / I915_PPGTT_PT_ENTRIES;
unsigned act_pt = first_entry / I915_PPGTT_PT_ENTRIES;
unsigned act_pte = first_entry % I915_PPGTT_PT_ENTRIES;
struct sg_page_iter sg_iter;
pt_vaddr = kmap_atomic(ppgtt->pt_pages[act_pd]);
pt_vaddr = kmap_atomic(ppgtt->pt_pages[act_pt]);
for_each_sg_page(pages->sgl, &sg_iter, pages->nents, 0) {
dma_addr_t page_addr;
@ -129,8 +129,8 @@ static void gen6_ppgtt_insert_entries(struct i915_hw_ppgtt *ppgtt,
cache_level);
if (++act_pte == I915_PPGTT_PT_ENTRIES) {
kunmap_atomic(pt_vaddr);
act_pd++;
pt_vaddr = kmap_atomic(ppgtt->pt_pages[act_pd]);
act_pt++;
pt_vaddr = kmap_atomic(ppgtt->pt_pages[act_pt]);
act_pte = 0;
}