diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_gtt.c | 33 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_lrc.c | 3 |
2 files changed, 35 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 4a76807..ed10e77 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -1441,6 +1441,33 @@ static void gen8_dump_ppgtt(struct i915_hw_ppgtt *ppgtt, struct seq_file *m) } } +static int gen8_preallocate_top_level_pdps(struct i915_hw_ppgtt *ppgtt) +{ + unsigned long *new_page_dirs, **new_page_tables; + uint32_t pdpes = I915_PDPES_PER_PDP(dev); + int ret; + + /* We allocate temp bitmap for page tables for no gain + * but as this is for init only, lets keep the things simple + */ + ret = alloc_gen8_temp_bitmaps(&new_page_dirs, &new_page_tables, pdpes); + if (ret) + return ret; + + /* Allocate for all pdps regardless of how the ppgtt + * was defined. + */ + ret = gen8_ppgtt_alloc_page_directories(&ppgtt->base, &ppgtt->pdp, + 0, 1ULL << 32, + new_page_dirs); + if (!ret) + *ppgtt->pdp.used_pdpes = *new_page_dirs; + + free_gen8_temp_bitmaps(new_page_dirs, new_page_tables, pdpes); + + return ret; +} + /* * GEN8 legacy ppgtt programming is accomplished through a max 4 PDP registers * with a net effect resembling a 2-level page table in normal x86 terms. Each @@ -1484,6 +1511,12 @@ static int gen8_ppgtt_init(struct i915_hw_ppgtt *ppgtt) trace_i915_page_directory_pointer_entry_alloc(&ppgtt->base, 0, 0, GEN8_PML4E_SHIFT); + + if (intel_vgpu_active(ppgtt->base.dev)) { + ret = gen8_preallocate_top_level_pdps(ppgtt); + if (ret) + goto free_scratch; + } } return 0; diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index 1af84c5..258af9b 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -1540,7 +1540,8 @@ static int gen8_emit_bb_start(struct drm_i915_gem_request *req, * not needed in 48-bit.*/ if (req->ctx->ppgtt && (intel_ring_flag(req->ring) & req->ctx->ppgtt->pd_dirty_rings)) { - if (!USES_FULL_48BIT_PPGTT(req->i915)) { + if (!USES_FULL_48BIT_PPGTT(req->i915) && + !intel_vgpu_active(req->i915->dev)) { ret = intel_logical_ring_emit_pdps(req); if (ret) return ret; |
