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drm/i915: Split out Haswell code from gen6_pte_encode.

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Now that we have function pointers, it's cleaner to just create a new
per-platform PTE encoding function.

This should be identical in behavior to the previous code.

v2: Drop accidental inline keyword on hsw_pte_encode.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Tested-by: Daniel Leung <daniel.leung@linux.intel.com> [v1]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Kenneth Graunke 2013-04-22 00:53:51 -07:00 committed by Daniel Vetter
parent 93c34e70eb
commit 9119708cd4
1 changed files with 21 additions and 11 deletions
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32
drivers/gpu/drm/i915/i915_gem_gtt.c
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@ -51,20 +51,13 @@ static gen6_gtt_pte_t gen6_pte_encode(struct drm_device *dev,
switch (level) {
case I915_CACHE_LLC_MLC:
/* Haswell doesn't set L3 this way */
if (IS_HASWELL(dev))
pte |= GEN6_PTE_CACHE_LLC;
else
pte |= GEN6_PTE_CACHE_LLC_MLC;
pte |= GEN6_PTE_CACHE_LLC_MLC;
break;
case I915_CACHE_LLC:
pte |= GEN6_PTE_CACHE_LLC;
break;
case I915_CACHE_NONE:
if (IS_HASWELL(dev))
pte |= HSW_PTE_UNCACHED;
else
pte |= GEN6_PTE_UNCACHED;
pte |= GEN6_PTE_UNCACHED;
break;
default:
BUG();
@ -94,6 +87,19 @@ static gen6_gtt_pte_t byt_pte_encode(struct drm_device *dev,
return pte;
}
static gen6_gtt_pte_t hsw_pte_encode(struct drm_device *dev,
dma_addr_t addr,
enum i915_cache_level level)
{
gen6_gtt_pte_t pte = GEN6_PTE_VALID;
pte |= GEN6_PTE_ADDR_ENCODE(addr);
if (level != I915_CACHE_NONE)
pte |= GEN6_PTE_CACHE_LLC;
return pte;
}
static int gen6_ppgtt_enable(struct drm_device *dev)
{
drm_i915_private_t *dev_priv = dev->dev_private;
@ -255,7 +261,9 @@ static int gen6_ppgtt_init(struct i915_hw_ppgtt *ppgtt)
first_pd_entry_in_global_pt =
gtt_total_entries(dev_priv->gtt) - I915_PPGTT_PD_ENTRIES;
if (IS_VALLEYVIEW(dev)) {
if (IS_HASWELL(dev)) {
ppgtt->pte_encode = hsw_pte_encode;
} else if (IS_VALLEYVIEW(dev)) {
ppgtt->pte_encode = byt_pte_encode;
} else {
ppgtt->pte_encode = gen6_pte_encode;
@ -849,7 +857,9 @@ int i915_gem_gtt_init(struct drm_device *dev)
} else {
dev_priv->gtt.gtt_probe = gen6_gmch_probe;
dev_priv->gtt.gtt_remove = gen6_gmch_remove;
if (IS_VALLEYVIEW(dev)) {
if (IS_HASWELL(dev)) {
dev_priv->gtt.pte_encode = hsw_pte_encode;
} else if (IS_VALLEYVIEW(dev)) {
dev_priv->gtt.pte_encode = byt_pte_encode;
} else {
dev_priv->gtt.pte_encode = gen6_pte_encode;