From: Ben Widawsky Date: Sun, 3 Nov 2013 04:07:26 +0000 (-0700) Subject: drm/i915/bdw: unleash PPGTT X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=28cf541543302d0b54703613838914fd9b6e3447;p=openwrt%2Fstaging%2Fblogic.git drm/i915/bdw: unleash PPGTT v2: Squash in fix from Ben: Set PPGTT batches as necessary This fixes the regression in the last couple of days when we enabled PPGTT. v3: Squash in fixup to still use GTT for secure batches from Ville: BDW doesn't have a separate secure vs. non-secure bit in MI_BATCH_BUFFER_START. So for secure batches we have to simply leave the PPGTT bit unset. Fortunately older generations (except HSW) had similar limitations so execbuffer already creates a GTT mapping for all secure batches. Cc: Ville Syrjälä Signed-off-by: Ben Widawsky Reviewed-by: Imre Deak Signed-off-by: Ville Syrjälä Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index 78786c44fe52..885d595e0e02 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -1146,8 +1146,7 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data, /* snb/ivb/vlv conflate the "batch in ppgtt" bit with the "non-secure * batch" bit. Hence we need to pin secure batches into the global gtt. - * hsw should have this fixed, but let's be paranoid and do it - * unconditionally for now. */ + * hsw should have this fixed, but bdw mucks it up again. */ if (flags & I915_DISPATCH_SECURE && !batch_obj->has_global_gtt_mapping) i915_gem_gtt_bind_object(batch_obj, batch_obj->cache_level); diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 60f398183c87..4fb0efa3e24a 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -439,7 +439,7 @@ static int gen8_ppgtt_init(struct i915_hw_ppgtt *ppgtt, uint64_t size) ppgtt->num_pt_pages, (ppgtt->num_pt_pages - num_pt_pages) + size % (1<<30)); - return -ENOSYS; /* Not ready yet */ + return 0; err_out: ppgtt->base.cleanup(&ppgtt->base); diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index ef0e7b99ded7..db086f4bf712 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -1699,6 +1699,9 @@ gen8_ring_dispatch_execbuffer(struct intel_ring_buffer *ring, u32 offset, u32 len, unsigned flags) { + struct drm_i915_private *dev_priv = ring->dev->dev_private; + bool ppgtt = dev_priv->mm.aliasing_ppgtt != NULL && + !(flags & I915_DISPATCH_SECURE); int ret; ret = intel_ring_begin(ring, 4); @@ -1706,7 +1709,7 @@ gen8_ring_dispatch_execbuffer(struct intel_ring_buffer *ring, return ret; /* FIXME(BDW): Address space and security selectors. */ - intel_ring_emit(ring, MI_BATCH_BUFFER_START_GEN8); + intel_ring_emit(ring, MI_BATCH_BUFFER_START_GEN8 | (ppgtt<<8)); intel_ring_emit(ring, offset); intel_ring_emit(ring, 0); intel_ring_emit(ring, MI_NOOP);