diff options
| -rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 68 |
1 files changed, 43 insertions, 25 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c index 908fb877f875..9d11bad74e9a 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c @@ -429,6 +429,32 @@ eb_vma_misplaced(const struct drm_i915_gem_exec_object2 *entry, return false; } +static u64 eb_pin_flags(const struct drm_i915_gem_exec_object2 *entry, + unsigned int exec_flags) +{ + u64 pin_flags = 0; + + if (exec_flags & EXEC_OBJECT_NEEDS_GTT) + pin_flags |= PIN_GLOBAL; + + /* + * Wa32bitGeneralStateOffset & Wa32bitInstructionBaseOffset, + * limit address to the first 4GBs for unflagged objects. + */ + if (!(exec_flags & EXEC_OBJECT_SUPPORTS_48B_ADDRESS)) + pin_flags |= PIN_ZONE_4G; + + if (exec_flags & __EXEC_OBJECT_NEEDS_MAP) + pin_flags |= PIN_MAPPABLE; + + if (exec_flags & EXEC_OBJECT_PINNED) + pin_flags |= entry->offset | PIN_OFFSET_FIXED; + else if (exec_flags & __EXEC_OBJECT_NEEDS_BIAS) + pin_flags |= BATCH_OFFSET_BIAS | PIN_OFFSET_BIAS; + + return pin_flags; +} + static inline bool eb_pin_vma(struct i915_execbuffer *eb, const struct drm_i915_gem_exec_object2 *entry, @@ -446,8 +472,19 @@ eb_pin_vma(struct i915_execbuffer *eb, if (unlikely(ev->flags & EXEC_OBJECT_NEEDS_GTT)) pin_flags |= PIN_GLOBAL; - if (unlikely(i915_vma_pin(vma, 0, 0, pin_flags))) - return false; + /* Attempt to reuse the current location if available */ + if (unlikely(i915_vma_pin(vma, 0, 0, pin_flags))) { + if (entry->flags & EXEC_OBJECT_PINNED) + return false; + + /* Failing that pick any _free_ space if suitable */ + if (unlikely(i915_vma_pin(vma, + entry->pad_to_size, + entry->alignment, + eb_pin_flags(entry, ev->flags) | + PIN_USER | PIN_NOEVICT))) + return false; + } if (unlikely(ev->flags & EXEC_OBJECT_NEEDS_FENCE)) { if (unlikely(i915_vma_pin_fence(vma))) { @@ -588,28 +625,9 @@ static int eb_reserve_vma(const struct i915_execbuffer *eb, u64 pin_flags) { struct drm_i915_gem_exec_object2 *entry = ev->exec; - unsigned int exec_flags = ev->flags; struct i915_vma *vma = ev->vma; int err; - if (exec_flags & EXEC_OBJECT_NEEDS_GTT) - pin_flags |= PIN_GLOBAL; - - /* - * Wa32bitGeneralStateOffset & Wa32bitInstructionBaseOffset, - * limit address to the first 4GBs for unflagged objects. - */ - if (!(exec_flags & EXEC_OBJECT_SUPPORTS_48B_ADDRESS)) - pin_flags |= PIN_ZONE_4G; - - if (exec_flags & __EXEC_OBJECT_NEEDS_MAP) - pin_flags |= PIN_MAPPABLE; - - if (exec_flags & EXEC_OBJECT_PINNED) - pin_flags |= entry->offset | PIN_OFFSET_FIXED; - else if (exec_flags & __EXEC_OBJECT_NEEDS_BIAS) - pin_flags |= BATCH_OFFSET_BIAS | PIN_OFFSET_BIAS; - if (drm_mm_node_allocated(&vma->node) && eb_vma_misplaced(entry, vma, ev->flags)) { err = i915_vma_unbind(vma); @@ -619,7 +637,7 @@ static int eb_reserve_vma(const struct i915_execbuffer *eb, err = i915_vma_pin(vma, entry->pad_to_size, entry->alignment, - pin_flags); + eb_pin_flags(entry, ev->flags) | pin_flags); if (err) return err; @@ -628,7 +646,7 @@ static int eb_reserve_vma(const struct i915_execbuffer *eb, eb->args->flags |= __EXEC_HAS_RELOC; } - if (unlikely(exec_flags & EXEC_OBJECT_NEEDS_FENCE)) { + if (unlikely(ev->flags & EXEC_OBJECT_NEEDS_FENCE)) { err = i915_vma_pin_fence(vma); if (unlikely(err)) { i915_vma_unpin(vma); @@ -636,10 +654,10 @@ static int eb_reserve_vma(const struct i915_execbuffer *eb, } if (vma->fence) - exec_flags |= __EXEC_OBJECT_HAS_FENCE; + ev->flags |= __EXEC_OBJECT_HAS_FENCE; } - ev->flags = exec_flags | __EXEC_OBJECT_HAS_PIN; + ev->flags |= __EXEC_OBJECT_HAS_PIN; GEM_BUG_ON(eb_vma_misplaced(entry, vma, ev->flags)); return 0; |