On Mon, 2013-07-08 at 23:08 -0700, Ben Widawsky wrote: > The GTT and PPGTT can be thought of more generally as GPU address > spaces. Many of their actions (insert entries), state (LRU lists) and > many of their characteristics (size), can be shared. Do that. > > The change itself doesn't actually impact most of the VMA/VM rework > coming up, it just fits in with the grand scheme. GGTT will usually be a > special case where we either know an object must be in the GGTT (dislay > engine, workarounds, etc.). > > v2: Drop usage of i915_gtt_vm (Daniel) > Make cleanup also part of the parent class (Ben) > Modified commit msg > Rebased > > Signed-off-by: Ben Widawsky <ben at bwidawsk.net> > --- > drivers/gpu/drm/i915/i915_debugfs.c | 4 +- > drivers/gpu/drm/i915/i915_dma.c | 4 +- > drivers/gpu/drm/i915/i915_drv.h | 57 ++++++------- > drivers/gpu/drm/i915/i915_gem.c | 4 +- > drivers/gpu/drm/i915/i915_gem_gtt.c | 162 ++++++++++++++++++++---------------- > 5 files changed, 121 insertions(+), 110 deletions(-) > >[...] > diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c > index 242d0f9..693115a 100644 > --- a/drivers/gpu/drm/i915/i915_gem_gtt.c > +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c > @@ -102,7 +102,7 @@ static gen6_gtt_pte_t hsw_pte_encode(dma_addr_t addr, > > static void gen6_write_pdes(struct i915_hw_ppgtt *ppgtt) > { > - struct drm_i915_private *dev_priv = ppgtt->dev->dev_private; > + struct drm_i915_private *dev_priv = ppgtt->base.dev->dev_private; > gen6_gtt_pte_t __iomem *pd_addr; > uint32_t pd_entry; > int i; > @@ -181,18 +181,18 @@ static int gen6_ppgtt_enable(struct drm_device *dev) > } > > /* PPGTT support for Sandybdrige/Gen6 and later */ > -static void gen6_ppgtt_clear_range(struct i915_hw_ppgtt *ppgtt, > +static void gen6_ppgtt_clear_range(struct i915_address_space *vm, > unsigned first_entry, > unsigned num_entries) > { > - struct drm_i915_private *dev_priv = ppgtt->dev->dev_private; > + struct i915_hw_ppgtt *ppgtt = > + container_of(vm, struct i915_hw_ppgtt, base); > gen6_gtt_pte_t *pt_vaddr, scratch_pte; > unsigned act_pt = first_entry / I915_PPGTT_PT_ENTRIES; > unsigned first_pte = first_entry % I915_PPGTT_PT_ENTRIES; > unsigned last_pte, i; > > - scratch_pte = ppgtt->pte_encode(dev_priv->gtt.scratch.addr, > - I915_CACHE_LLC); > + scratch_pte = vm->pte_encode(vm->scratch.addr, I915_CACHE_LLC); I only see ggtt's scratch page being initialized, but can't find the corresponding init/teardown for ppgtt. Btw, why do we need separate global/per-process scratch pages? (would be nice to add it to the commit message) --Imre -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 490 bytes Desc: This is a digitally signed message part URL: <http://lists.freedesktop.org/archives/intel-gfx/attachments/20130711/64e93d81/attachment.pgp>