[PATCH 4/5] drm/i915/gem: Use shrinkable status for unknown swizzle quirks
Chris Wilson
chris at chris-wilson.co.uk
Fri Jan 1 12:09:46 UTC 2021
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
.../gpu/drm/i915/gem/i915_gem_object_types.h | 7 +------
drivers/gpu/drm/i915/gem/i915_gem_pages.c | 19 +++++++++++--------
drivers/gpu/drm/i915/gem/i915_gem_phys.c | 2 +-
drivers/gpu/drm/i915/gem/i915_gem_tiling.c | 12 ++++++------
drivers/gpu/drm/i915/i915_gem.c | 12 ++++++------
.../gpu/drm/i915/selftests/i915_gem_evict.c | 10 +++++-----
6 files changed, 30 insertions(+), 32 deletions(-)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object_types.h b/drivers/gpu/drm/i915/gem/i915_gem_object_types.h
index b01b4b307ee7..0865c7500c6d 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_object_types.h
+++ b/drivers/gpu/drm/i915/gem/i915_gem_object_types.h
@@ -165,6 +165,7 @@ struct drm_i915_gem_object {
#define I915_BO_ALLOC_VOLATILE BIT(1)
#define I915_BO_ALLOC_FLAGS (I915_BO_ALLOC_CONTIGUOUS | I915_BO_ALLOC_VOLATILE)
#define I915_BO_READONLY BIT(2)
+#define I915_BO_QUIRK 3 /* unknown swizzling; do not release! */
/*
* Is the object to be mapped as read-only to the GPU
@@ -273,12 +274,6 @@ struct drm_i915_gem_object {
* pages were last acquired.
*/
bool dirty:1;
-
- /**
- * This is set if the object has been pinned due to unknown
- * swizzling.
- */
- bool quirked:1;
} mm;
/** Record of address bit 17 of each page at last unbind. */
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_pages.c b/drivers/gpu/drm/i915/gem/i915_gem_pages.c
index 3db3c667c486..8742e88cb648 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_pages.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_pages.c
@@ -16,6 +16,7 @@ void __i915_gem_object_set_pages(struct drm_i915_gem_object *obj,
{
struct drm_i915_private *i915 = to_i915(obj->base.dev);
unsigned long supported = INTEL_INFO(i915)->page_sizes;
+ bool shrinkable;
int i;
lockdep_assert_held(&obj->mm.lock);
@@ -38,13 +39,6 @@ void __i915_gem_object_set_pages(struct drm_i915_gem_object *obj,
obj->mm.pages = pages;
- if (i915_gem_object_is_tiled(obj) &&
- i915->quirks & QUIRK_PIN_SWIZZLED_PAGES) {
- GEM_BUG_ON(obj->mm.quirked);
- __i915_gem_object_pin_pages(obj);
- obj->mm.quirked = true;
- }
-
GEM_BUG_ON(!sg_page_sizes);
obj->mm.page_sizes.phys = sg_page_sizes;
@@ -63,7 +57,16 @@ void __i915_gem_object_set_pages(struct drm_i915_gem_object *obj,
}
GEM_BUG_ON(!HAS_PAGE_SIZES(i915, obj->mm.page_sizes.sg));
- if (i915_gem_object_is_shrinkable(obj)) {
+ shrinkable = i915_gem_object_is_shrinkable(obj);
+
+ if (i915_gem_object_is_tiled(obj) &&
+ i915->quirks & QUIRK_PIN_SWIZZLED_PAGES) {
+ GEM_BUG_ON(test_bit(I915_BO_QUIRK, &obj->flags));
+ set_bit(I915_BO_QUIRK, &obj->flags);
+ shrinkable = false;
+ }
+
+ if (shrinkable) {
struct list_head *list;
unsigned long flags;
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_phys.c b/drivers/gpu/drm/i915/gem/i915_gem_phys.c
index 3bb65a1b1d93..09a29bfde9ac 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_phys.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_phys.c
@@ -227,7 +227,7 @@ int i915_gem_object_attach_phys(struct drm_i915_gem_object *obj, int align)
goto err_unlock;
}
- if (obj->mm.quirked) {
+ if (test_bit(I915_BO_QUIRK, &obj->flags)) {
err = -EFAULT;
goto err_unlock;
}
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_tiling.c b/drivers/gpu/drm/i915/gem/i915_gem_tiling.c
index ffcaee74a249..408127129d87 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_tiling.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_tiling.c
@@ -270,14 +270,14 @@ i915_gem_object_set_tiling(struct drm_i915_gem_object *obj,
obj->mm.madv == I915_MADV_WILLNEED &&
i915->quirks & QUIRK_PIN_SWIZZLED_PAGES) {
if (tiling == I915_TILING_NONE) {
- GEM_BUG_ON(!obj->mm.quirked);
- __i915_gem_object_unpin_pages(obj);
- obj->mm.quirked = false;
+ GEM_BUG_ON(!test_bit(I915_BO_QUIRK, &obj->flags));
+ i915_gem_object_make_shrinkable(obj);
+ clear_bit(I915_BO_QUIRK, &obj->flags);
}
if (!i915_gem_object_is_tiled(obj)) {
- GEM_BUG_ON(obj->mm.quirked);
- __i915_gem_object_pin_pages(obj);
- obj->mm.quirked = true;
+ GEM_BUG_ON(test_bit(I915_BO_QUIRK, &obj->flags));
+ i915_gem_object_make_unshrinkable(obj);
+ set_bit(I915_BO_QUIRK, &obj->flags);
}
}
mutex_unlock(&obj->mm.lock);
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 17a4636ee542..d1bcf4cf5946 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1059,14 +1059,14 @@ i915_gem_madvise_ioctl(struct drm_device *dev, void *data,
i915_gem_object_is_tiled(obj) &&
i915->quirks & QUIRK_PIN_SWIZZLED_PAGES) {
if (obj->mm.madv == I915_MADV_WILLNEED) {
- GEM_BUG_ON(!obj->mm.quirked);
- __i915_gem_object_unpin_pages(obj);
- obj->mm.quirked = false;
+ GEM_BUG_ON(!test_bit(I915_BO_QUIRK, &obj->flags));
+ i915_gem_object_make_shrinkable(obj);
+ set_bit(I915_BO_QUIRK, &obj->flags);
}
if (args->madv == I915_MADV_WILLNEED) {
- GEM_BUG_ON(obj->mm.quirked);
- __i915_gem_object_pin_pages(obj);
- obj->mm.quirked = true;
+ GEM_BUG_ON(test_bit(I915_BO_QUIRK, &obj->flags));
+ i915_gem_object_make_unshrinkable(obj);
+ clear_bit(I915_BO_QUIRK, &obj->flags);
}
}
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_evict.c b/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
index 3512bb8433cf..5f08104ebd94 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
@@ -38,8 +38,8 @@ static void quirk_add(struct drm_i915_gem_object *obj,
struct list_head *objects)
{
/* quirk is only for live tiled objects, use it to declare ownership */
- GEM_BUG_ON(obj->mm.quirked);
- obj->mm.quirked = true;
+ GEM_BUG_ON(test_bit(I915_BO_QUIRK, &obj->flags));
+ set_bit(I915_BO_QUIRK, &obj->flags);
list_add(&obj->st_link, objects);
}
@@ -85,7 +85,7 @@ static void unpin_ggtt(struct i915_ggtt *ggtt)
struct i915_vma *vma;
list_for_each_entry(vma, &ggtt->vm.bound_list, vm_link)
- if (vma->obj->mm.quirked)
+ if (test_bit(I915_BO_QUIRK, &vma->obj->flags))
i915_vma_unpin(vma);
}
@@ -94,8 +94,8 @@ static void cleanup_objects(struct i915_ggtt *ggtt, struct list_head *list)
struct drm_i915_gem_object *obj, *on;
list_for_each_entry_safe(obj, on, list, st_link) {
- GEM_BUG_ON(!obj->mm.quirked);
- obj->mm.quirked = false;
+ GEM_BUG_ON(!test_bit(I915_BO_QUIRK, &obj->flags));
+ set_bit(I915_BO_QUIRK, &obj->flags);
i915_gem_object_put(obj);
}
--
2.20.1
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