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drm/i915: Combine scratch members into a struct 

There isn't any special reason to do this other than it makes it obvious
that the two members are connected.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ben Widawsky 2013-06-27 16:30:18 -07:00 committed by Daniel Vetter
parent 84f1356058
commit 6716724006
2 changed files with 12 additions and 11 deletions
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6
drivers/gpu/drm/i915/i915_drv.h
View File

@ -465,8 +465,10 @@ struct i915_gtt {
void __iomem *gsm;
bool do_idle_maps;
dma_addr_t scratch_page_dma;
struct page *scratch_page;
struct {
dma_addr_t addr;
struct page *page;
} scratch;
/* global gtt ops */
int (*gtt_probe)(struct drm_device *dev, size_t *gtt_total,

17
drivers/gpu/drm/i915/i915_gem_gtt.c
View File

@ -195,7 +195,7 @@ static void gen6_ppgtt_clear_range(struct i915_hw_ppgtt *ppgtt,
unsigned last_pte, i;
scratch_pte = ppgtt->pte_encode(ppgtt->dev,
dev_priv->gtt.scratch_page_dma,
dev_priv->gtt.scratch.addr,
I915_CACHE_LLC);
while (num_entries) {
@ -521,8 +521,7 @@ static void gen6_ggtt_clear_range(struct drm_device *dev,
first_entry, num_entries, max_entries))
num_entries = max_entries;
scratch_pte = dev_priv->gtt.pte_encode(dev,
dev_priv->gtt.scratch_page_dma,
scratch_pte = dev_priv->gtt.pte_encode(dev, dev_priv->gtt.scratch.addr,
I915_CACHE_LLC);
for (i = 0; i < num_entries; i++)
iowrite32(scratch_pte, &gtt_base[i]);
@ -727,8 +726,8 @@ static int setup_scratch_page(struct drm_device *dev)
#else
dma_addr = page_to_phys(page);
#endif
dev_priv->gtt.scratch_page = page;
dev_priv->gtt.scratch_page_dma = dma_addr;
dev_priv->gtt.scratch.page = page;
dev_priv->gtt.scratch.addr = dma_addr;
return 0;
}
@ -736,11 +735,11 @@ static int setup_scratch_page(struct drm_device *dev)
static void teardown_scratch_page(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
set_pages_wb(dev_priv->gtt.scratch_page, 1);
pci_unmap_page(dev->pdev, dev_priv->gtt.scratch_page_dma,
set_pages_wb(dev_priv->gtt.scratch.page, 1);
pci_unmap_page(dev->pdev, dev_priv->gtt.scratch.addr,
PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
put_page(dev_priv->gtt.scratch_page);
__free_page(dev_priv->gtt.scratch_page);
put_page(dev_priv->gtt.scratch.page);
__free_page(dev_priv->gtt.scratch.page);
}
static inline unsigned int gen6_get_total_gtt_size(u16 snb_gmch_ctl)