* [PATCH v10 2/8] gpu: Move DRM buddy allocator one level up (part two)
[not found] <20260218205507.689429-1-joelagnelf@nvidia.com>
2026-02-18 20:54 ` [PATCH v10 1/8] gpu: Move DRM buddy allocator one level up (part one) Joel Fernandes
@ 2026-02-18 20:55 ` Joel Fernandes
2026-02-19 3:18 ` Alexandre Courbot
2026-02-18 20:55 ` [PATCH v10 3/8] gpu: Fix uninitialized buddy for built-in drivers Joel Fernandes
2026-02-18 20:59 ` [PATCH v10 0/8] Preparatory patches for nova-core memory management Joel Fernandes
3 siblings, 1 reply; 8+ messages in thread
From: Joel Fernandes @ 2026-02-18 20:55 UTC (permalink / raw)
To: linux-kernel, David Airlie, Simona Vetter, Maarten Lankhorst,
Maxime Ripard, Thomas Zimmermann, Jonathan Corbet, Shuah Khan,
Matthew Auld, Arun Pravin, Christian Koenig, Alex Deucher,
Jani Nikula, Joonas Lahtinen, Rodrigo Vivi, Tvrtko Ursulin,
Huang Rui, Matthew Brost, Thomas Hellström, Helge Deller
Cc: Danilo Krummrich, Miguel Ojeda, Dave Airlie, Gary Guo,
Daniel Almeida, Koen Koning, dri-devel, nouveau, rust-for-linux,
Joel Fernandes, linux-doc, amd-gfx, intel-gfx, intel-xe,
linux-fbdev
Move the DRM buddy allocator one level up so that it can be used by GPU
drivers (example, nova-core) that have usecases other than DRM (such as
VFIO vGPU support). Modify the API, structures and Kconfigs to use
"gpu_buddy" terminology. Adapt the drivers and tests to use the new API.
The commit cannot be split due to bisectability, however no functional
change is intended. Verified by running K-UNIT tests and build tested
various configurations.
Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
[airlied: I've split this into two so git can find copies easier.
I've also just nuked drm_random library, that stuff needs to be done
elsewhere and only the buddy tests seem to be using it].
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
Documentation/gpu/drm-mm.rst | 6 +
MAINTAINERS | 8 +-
drivers/gpu/Kconfig | 13 +
drivers/gpu/Makefile | 1 +
drivers/gpu/buddy.c | 556 +++++++++---------
drivers/gpu/drm/Kconfig | 1 +
drivers/gpu/drm/Makefile | 2 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 2 +-
.../gpu/drm/amd/amdgpu/amdgpu_res_cursor.h | 12 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c | 79 +--
drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.h | 18 +-
drivers/gpu/drm/drm_buddy.c | 77 +++
drivers/gpu/drm/i915/i915_scatterlist.c | 8 +-
drivers/gpu/drm/i915/i915_ttm_buddy_manager.c | 55 +-
drivers/gpu/drm/i915/i915_ttm_buddy_manager.h | 4 +-
.../drm/i915/selftests/intel_memory_region.c | 20 +-
.../gpu/drm/ttm/tests/ttm_bo_validate_test.c | 4 +-
drivers/gpu/drm/ttm/tests/ttm_mock_manager.c | 18 +-
drivers/gpu/drm/ttm/tests/ttm_mock_manager.h | 2 +-
drivers/gpu/drm/xe/xe_res_cursor.h | 34 +-
drivers/gpu/drm/xe/xe_svm.c | 12 +-
drivers/gpu/drm/xe/xe_ttm_vram_mgr.c | 71 +--
drivers/gpu/drm/xe/xe_ttm_vram_mgr_types.h | 2 +-
drivers/gpu/tests/Makefile | 2 +-
drivers/gpu/tests/gpu_buddy_test.c | 412 ++++++-------
drivers/gpu/tests/gpu_random.c | 16 +-
drivers/gpu/tests/gpu_random.h | 18 +-
drivers/video/Kconfig | 1 +
include/drm/drm_buddy.h | 18 +
include/linux/gpu_buddy.h | 120 ++--
30 files changed, 853 insertions(+), 739 deletions(-)
create mode 100644 drivers/gpu/Kconfig
create mode 100644 drivers/gpu/drm/drm_buddy.c
create mode 100644 include/drm/drm_buddy.h
diff --git a/Documentation/gpu/drm-mm.rst b/Documentation/gpu/drm-mm.rst
index ceee0e663237..32fb506db05b 100644
--- a/Documentation/gpu/drm-mm.rst
+++ b/Documentation/gpu/drm-mm.rst
@@ -532,6 +532,12 @@ Buddy Allocator Function References (GPU buddy)
.. kernel-doc:: drivers/gpu/buddy.c
:export:
+DRM Buddy Specific Logging Function References
+----------------------------------------------
+
+.. kernel-doc:: drivers/gpu/drm/drm_buddy.c
+ :export:
+
DRM Cache Handling and Fast WC memcpy()
=======================================
diff --git a/MAINTAINERS b/MAINTAINERS
index dc82a6bd1a61..14b4f9af0e36 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8905,15 +8905,17 @@ T: git https://gitlab.freedesktop.org/drm/misc/kernel.git
F: drivers/gpu/drm/ttm/
F: include/drm/ttm/
-DRM BUDDY ALLOCATOR
+GPU BUDDY ALLOCATOR
M: Matthew Auld <matthew.auld@intel.com>
M: Arun Pravin <arunpravin.paneerselvam@amd.com>
R: Christian Koenig <christian.koenig@amd.com>
L: dri-devel@lists.freedesktop.org
S: Maintained
T: git https://gitlab.freedesktop.org/drm/misc/kernel.git
-F: drivers/gpu/drm/drm_buddy.c
-F: drivers/gpu/drm/tests/drm_buddy_test.c
+F: drivers/gpu/drm_buddy.c
+F: drivers/gpu/buddy.c
+F: drivers/gpu/tests/gpu_buddy_test.c
+F: include/linux/gpu_buddy.h
F: include/drm/drm_buddy.h
DRM AUTOMATED TESTING
diff --git a/drivers/gpu/Kconfig b/drivers/gpu/Kconfig
new file mode 100644
index 000000000000..ebb2ad4b7ea0
--- /dev/null
+++ b/drivers/gpu/Kconfig
@@ -0,0 +1,13 @@
+# SPDX-License-Identifier: GPL-2.0
+
+config GPU_BUDDY
+ bool
+ help
+ A page based buddy allocator for GPU memory.
+
+config GPU_BUDDY_KUNIT_TEST
+ tristate "KUnit tests for GPU buddy allocator" if !KUNIT_ALL_TESTS
+ depends on GPU_BUDDY && KUNIT
+ default KUNIT_ALL_TESTS
+ help
+ KUnit tests for the GPU buddy allocator.
diff --git a/drivers/gpu/Makefile b/drivers/gpu/Makefile
index c5292ee2c852..5cd54d06e262 100644
--- a/drivers/gpu/Makefile
+++ b/drivers/gpu/Makefile
@@ -6,3 +6,4 @@ obj-y += host1x/ drm/ vga/ tests/
obj-$(CONFIG_IMX_IPUV3_CORE) += ipu-v3/
obj-$(CONFIG_TRACE_GPU_MEM) += trace/
obj-$(CONFIG_NOVA_CORE) += nova-core/
+obj-$(CONFIG_GPU_BUDDY) += buddy.o
diff --git a/drivers/gpu/buddy.c b/drivers/gpu/buddy.c
index 4cc63d961d26..603c59a2013a 100644
--- a/drivers/gpu/buddy.c
+++ b/drivers/gpu/buddy.c
@@ -11,27 +11,17 @@
#include <linux/sizes.h>
#include <linux/gpu_buddy.h>
-#include <drm/drm_print.h>
-
-enum drm_buddy_free_tree {
- DRM_BUDDY_CLEAR_TREE = 0,
- DRM_BUDDY_DIRTY_TREE,
- DRM_BUDDY_MAX_FREE_TREES,
-};
static struct kmem_cache *slab_blocks;
-#define for_each_free_tree(tree) \
- for ((tree) = 0; (tree) < DRM_BUDDY_MAX_FREE_TREES; (tree)++)
-
-static struct drm_buddy_block *drm_block_alloc(struct drm_buddy *mm,
- struct drm_buddy_block *parent,
+static struct gpu_buddy_block *gpu_block_alloc(struct gpu_buddy *mm,
+ struct gpu_buddy_block *parent,
unsigned int order,
u64 offset)
{
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
- BUG_ON(order > DRM_BUDDY_MAX_ORDER);
+ BUG_ON(order > GPU_BUDDY_MAX_ORDER);
block = kmem_cache_zalloc(slab_blocks, GFP_KERNEL);
if (!block)
@@ -43,30 +33,30 @@ static struct drm_buddy_block *drm_block_alloc(struct drm_buddy *mm,
RB_CLEAR_NODE(&block->rb);
- BUG_ON(block->header & DRM_BUDDY_HEADER_UNUSED);
+ BUG_ON(block->header & GPU_BUDDY_HEADER_UNUSED);
return block;
}
-static void drm_block_free(struct drm_buddy *mm,
- struct drm_buddy_block *block)
+static void gpu_block_free(struct gpu_buddy *mm,
+ struct gpu_buddy_block *block)
{
kmem_cache_free(slab_blocks, block);
}
-static enum drm_buddy_free_tree
-get_block_tree(struct drm_buddy_block *block)
+static enum gpu_buddy_free_tree
+get_block_tree(struct gpu_buddy_block *block)
{
- return drm_buddy_block_is_clear(block) ?
- DRM_BUDDY_CLEAR_TREE : DRM_BUDDY_DIRTY_TREE;
+ return gpu_buddy_block_is_clear(block) ?
+ GPU_BUDDY_CLEAR_TREE : GPU_BUDDY_DIRTY_TREE;
}
-static struct drm_buddy_block *
+static struct gpu_buddy_block *
rbtree_get_free_block(const struct rb_node *node)
{
- return node ? rb_entry(node, struct drm_buddy_block, rb) : NULL;
+ return node ? rb_entry(node, struct gpu_buddy_block, rb) : NULL;
}
-static struct drm_buddy_block *
+static struct gpu_buddy_block *
rbtree_last_free_block(struct rb_root *root)
{
return rbtree_get_free_block(rb_last(root));
@@ -77,33 +67,33 @@ static bool rbtree_is_empty(struct rb_root *root)
return RB_EMPTY_ROOT(root);
}
-static bool drm_buddy_block_offset_less(const struct drm_buddy_block *block,
- const struct drm_buddy_block *node)
+static bool gpu_buddy_block_offset_less(const struct gpu_buddy_block *block,
+ const struct gpu_buddy_block *node)
{
- return drm_buddy_block_offset(block) < drm_buddy_block_offset(node);
+ return gpu_buddy_block_offset(block) < gpu_buddy_block_offset(node);
}
static bool rbtree_block_offset_less(struct rb_node *block,
const struct rb_node *node)
{
- return drm_buddy_block_offset_less(rbtree_get_free_block(block),
+ return gpu_buddy_block_offset_less(rbtree_get_free_block(block),
rbtree_get_free_block(node));
}
-static void rbtree_insert(struct drm_buddy *mm,
- struct drm_buddy_block *block,
- enum drm_buddy_free_tree tree)
+static void rbtree_insert(struct gpu_buddy *mm,
+ struct gpu_buddy_block *block,
+ enum gpu_buddy_free_tree tree)
{
rb_add(&block->rb,
- &mm->free_trees[tree][drm_buddy_block_order(block)],
+ &mm->free_trees[tree][gpu_buddy_block_order(block)],
rbtree_block_offset_less);
}
-static void rbtree_remove(struct drm_buddy *mm,
- struct drm_buddy_block *block)
+static void rbtree_remove(struct gpu_buddy *mm,
+ struct gpu_buddy_block *block)
{
- unsigned int order = drm_buddy_block_order(block);
- enum drm_buddy_free_tree tree;
+ unsigned int order = gpu_buddy_block_order(block);
+ enum gpu_buddy_free_tree tree;
struct rb_root *root;
tree = get_block_tree(block);
@@ -113,42 +103,42 @@ static void rbtree_remove(struct drm_buddy *mm,
RB_CLEAR_NODE(&block->rb);
}
-static void clear_reset(struct drm_buddy_block *block)
+static void clear_reset(struct gpu_buddy_block *block)
{
- block->header &= ~DRM_BUDDY_HEADER_CLEAR;
+ block->header &= ~GPU_BUDDY_HEADER_CLEAR;
}
-static void mark_cleared(struct drm_buddy_block *block)
+static void mark_cleared(struct gpu_buddy_block *block)
{
- block->header |= DRM_BUDDY_HEADER_CLEAR;
+ block->header |= GPU_BUDDY_HEADER_CLEAR;
}
-static void mark_allocated(struct drm_buddy *mm,
- struct drm_buddy_block *block)
+static void mark_allocated(struct gpu_buddy *mm,
+ struct gpu_buddy_block *block)
{
- block->header &= ~DRM_BUDDY_HEADER_STATE;
- block->header |= DRM_BUDDY_ALLOCATED;
+ block->header &= ~GPU_BUDDY_HEADER_STATE;
+ block->header |= GPU_BUDDY_ALLOCATED;
rbtree_remove(mm, block);
}
-static void mark_free(struct drm_buddy *mm,
- struct drm_buddy_block *block)
+static void mark_free(struct gpu_buddy *mm,
+ struct gpu_buddy_block *block)
{
- enum drm_buddy_free_tree tree;
+ enum gpu_buddy_free_tree tree;
- block->header &= ~DRM_BUDDY_HEADER_STATE;
- block->header |= DRM_BUDDY_FREE;
+ block->header &= ~GPU_BUDDY_HEADER_STATE;
+ block->header |= GPU_BUDDY_FREE;
tree = get_block_tree(block);
rbtree_insert(mm, block, tree);
}
-static void mark_split(struct drm_buddy *mm,
- struct drm_buddy_block *block)
+static void mark_split(struct gpu_buddy *mm,
+ struct gpu_buddy_block *block)
{
- block->header &= ~DRM_BUDDY_HEADER_STATE;
- block->header |= DRM_BUDDY_SPLIT;
+ block->header &= ~GPU_BUDDY_HEADER_STATE;
+ block->header |= GPU_BUDDY_SPLIT;
rbtree_remove(mm, block);
}
@@ -163,10 +153,10 @@ static inline bool contains(u64 s1, u64 e1, u64 s2, u64 e2)
return s1 <= s2 && e1 >= e2;
}
-static struct drm_buddy_block *
-__get_buddy(struct drm_buddy_block *block)
+static struct gpu_buddy_block *
+__get_buddy(struct gpu_buddy_block *block)
{
- struct drm_buddy_block *parent;
+ struct gpu_buddy_block *parent;
parent = block->parent;
if (!parent)
@@ -178,19 +168,19 @@ __get_buddy(struct drm_buddy_block *block)
return parent->left;
}
-static unsigned int __drm_buddy_free(struct drm_buddy *mm,
- struct drm_buddy_block *block,
+static unsigned int __gpu_buddy_free(struct gpu_buddy *mm,
+ struct gpu_buddy_block *block,
bool force_merge)
{
- struct drm_buddy_block *parent;
+ struct gpu_buddy_block *parent;
unsigned int order;
while ((parent = block->parent)) {
- struct drm_buddy_block *buddy;
+ struct gpu_buddy_block *buddy;
buddy = __get_buddy(block);
- if (!drm_buddy_block_is_free(buddy))
+ if (!gpu_buddy_block_is_free(buddy))
break;
if (!force_merge) {
@@ -198,31 +188,31 @@ static unsigned int __drm_buddy_free(struct drm_buddy *mm,
* Check the block and its buddy clear state and exit
* the loop if they both have the dissimilar state.
*/
- if (drm_buddy_block_is_clear(block) !=
- drm_buddy_block_is_clear(buddy))
+ if (gpu_buddy_block_is_clear(block) !=
+ gpu_buddy_block_is_clear(buddy))
break;
- if (drm_buddy_block_is_clear(block))
+ if (gpu_buddy_block_is_clear(block))
mark_cleared(parent);
}
rbtree_remove(mm, buddy);
- if (force_merge && drm_buddy_block_is_clear(buddy))
- mm->clear_avail -= drm_buddy_block_size(mm, buddy);
+ if (force_merge && gpu_buddy_block_is_clear(buddy))
+ mm->clear_avail -= gpu_buddy_block_size(mm, buddy);
- drm_block_free(mm, block);
- drm_block_free(mm, buddy);
+ gpu_block_free(mm, block);
+ gpu_block_free(mm, buddy);
block = parent;
}
- order = drm_buddy_block_order(block);
+ order = gpu_buddy_block_order(block);
mark_free(mm, block);
return order;
}
-static int __force_merge(struct drm_buddy *mm,
+static int __force_merge(struct gpu_buddy *mm,
u64 start,
u64 end,
unsigned int min_order)
@@ -241,7 +231,7 @@ static int __force_merge(struct drm_buddy *mm,
struct rb_node *iter = rb_last(&mm->free_trees[tree][i]);
while (iter) {
- struct drm_buddy_block *block, *buddy;
+ struct gpu_buddy_block *block, *buddy;
u64 block_start, block_end;
block = rbtree_get_free_block(iter);
@@ -250,18 +240,18 @@ static int __force_merge(struct drm_buddy *mm,
if (!block || !block->parent)
continue;
- block_start = drm_buddy_block_offset(block);
- block_end = block_start + drm_buddy_block_size(mm, block) - 1;
+ block_start = gpu_buddy_block_offset(block);
+ block_end = block_start + gpu_buddy_block_size(mm, block) - 1;
if (!contains(start, end, block_start, block_end))
continue;
buddy = __get_buddy(block);
- if (!drm_buddy_block_is_free(buddy))
+ if (!gpu_buddy_block_is_free(buddy))
continue;
- WARN_ON(drm_buddy_block_is_clear(block) ==
- drm_buddy_block_is_clear(buddy));
+ WARN_ON(gpu_buddy_block_is_clear(block) ==
+ gpu_buddy_block_is_clear(buddy));
/*
* Advance to the next node when the current node is the buddy,
@@ -271,10 +261,10 @@ static int __force_merge(struct drm_buddy *mm,
iter = rb_prev(iter);
rbtree_remove(mm, block);
- if (drm_buddy_block_is_clear(block))
- mm->clear_avail -= drm_buddy_block_size(mm, block);
+ if (gpu_buddy_block_is_clear(block))
+ mm->clear_avail -= gpu_buddy_block_size(mm, block);
- order = __drm_buddy_free(mm, block, true);
+ order = __gpu_buddy_free(mm, block, true);
if (order >= min_order)
return 0;
}
@@ -285,9 +275,9 @@ static int __force_merge(struct drm_buddy *mm,
}
/**
- * drm_buddy_init - init memory manager
+ * gpu_buddy_init - init memory manager
*
- * @mm: DRM buddy manager to initialize
+ * @mm: GPU buddy manager to initialize
* @size: size in bytes to manage
* @chunk_size: minimum page size in bytes for our allocations
*
@@ -296,7 +286,7 @@ static int __force_merge(struct drm_buddy *mm,
* Returns:
* 0 on success, error code on failure.
*/
-int drm_buddy_init(struct drm_buddy *mm, u64 size, u64 chunk_size)
+int gpu_buddy_init(struct gpu_buddy *mm, u64 size, u64 chunk_size)
{
unsigned int i, j, root_count = 0;
u64 offset = 0;
@@ -318,9 +308,9 @@ int drm_buddy_init(struct drm_buddy *mm, u64 size, u64 chunk_size)
mm->chunk_size = chunk_size;
mm->max_order = ilog2(size) - ilog2(chunk_size);
- BUG_ON(mm->max_order > DRM_BUDDY_MAX_ORDER);
+ BUG_ON(mm->max_order > GPU_BUDDY_MAX_ORDER);
- mm->free_trees = kmalloc_array(DRM_BUDDY_MAX_FREE_TREES,
+ mm->free_trees = kmalloc_array(GPU_BUDDY_MAX_FREE_TREES,
sizeof(*mm->free_trees),
GFP_KERNEL);
if (!mm->free_trees)
@@ -340,7 +330,7 @@ int drm_buddy_init(struct drm_buddy *mm, u64 size, u64 chunk_size)
mm->n_roots = hweight64(size);
mm->roots = kmalloc_array(mm->n_roots,
- sizeof(struct drm_buddy_block *),
+ sizeof(struct gpu_buddy_block *),
GFP_KERNEL);
if (!mm->roots)
goto out_free_tree;
@@ -350,21 +340,21 @@ int drm_buddy_init(struct drm_buddy *mm, u64 size, u64 chunk_size)
* not itself a power-of-two.
*/
do {
- struct drm_buddy_block *root;
+ struct gpu_buddy_block *root;
unsigned int order;
u64 root_size;
order = ilog2(size) - ilog2(chunk_size);
root_size = chunk_size << order;
- root = drm_block_alloc(mm, NULL, order, offset);
+ root = gpu_block_alloc(mm, NULL, order, offset);
if (!root)
goto out_free_roots;
mark_free(mm, root);
BUG_ON(root_count > mm->max_order);
- BUG_ON(drm_buddy_block_size(mm, root) < chunk_size);
+ BUG_ON(gpu_buddy_block_size(mm, root) < chunk_size);
mm->roots[root_count] = root;
@@ -377,7 +367,7 @@ int drm_buddy_init(struct drm_buddy *mm, u64 size, u64 chunk_size)
out_free_roots:
while (root_count--)
- drm_block_free(mm, mm->roots[root_count]);
+ gpu_block_free(mm, mm->roots[root_count]);
kfree(mm->roots);
out_free_tree:
while (i--)
@@ -385,16 +375,16 @@ int drm_buddy_init(struct drm_buddy *mm, u64 size, u64 chunk_size)
kfree(mm->free_trees);
return -ENOMEM;
}
-EXPORT_SYMBOL(drm_buddy_init);
+EXPORT_SYMBOL(gpu_buddy_init);
/**
- * drm_buddy_fini - tear down the memory manager
+ * gpu_buddy_fini - tear down the memory manager
*
- * @mm: DRM buddy manager to free
+ * @mm: GPU buddy manager to free
*
* Cleanup memory manager resources and the freetree
*/
-void drm_buddy_fini(struct drm_buddy *mm)
+void gpu_buddy_fini(struct gpu_buddy *mm)
{
u64 root_size, size, start;
unsigned int order;
@@ -404,13 +394,13 @@ void drm_buddy_fini(struct drm_buddy *mm)
for (i = 0; i < mm->n_roots; ++i) {
order = ilog2(size) - ilog2(mm->chunk_size);
- start = drm_buddy_block_offset(mm->roots[i]);
+ start = gpu_buddy_block_offset(mm->roots[i]);
__force_merge(mm, start, start + size, order);
- if (WARN_ON(!drm_buddy_block_is_free(mm->roots[i])))
+ if (WARN_ON(!gpu_buddy_block_is_free(mm->roots[i])))
kunit_fail_current_test("buddy_fini() root");
- drm_block_free(mm, mm->roots[i]);
+ gpu_block_free(mm, mm->roots[i]);
root_size = mm->chunk_size << order;
size -= root_size;
@@ -423,31 +413,31 @@ void drm_buddy_fini(struct drm_buddy *mm)
kfree(mm->free_trees);
kfree(mm->roots);
}
-EXPORT_SYMBOL(drm_buddy_fini);
+EXPORT_SYMBOL(gpu_buddy_fini);
-static int split_block(struct drm_buddy *mm,
- struct drm_buddy_block *block)
+static int split_block(struct gpu_buddy *mm,
+ struct gpu_buddy_block *block)
{
- unsigned int block_order = drm_buddy_block_order(block) - 1;
- u64 offset = drm_buddy_block_offset(block);
+ unsigned int block_order = gpu_buddy_block_order(block) - 1;
+ u64 offset = gpu_buddy_block_offset(block);
- BUG_ON(!drm_buddy_block_is_free(block));
- BUG_ON(!drm_buddy_block_order(block));
+ BUG_ON(!gpu_buddy_block_is_free(block));
+ BUG_ON(!gpu_buddy_block_order(block));
- block->left = drm_block_alloc(mm, block, block_order, offset);
+ block->left = gpu_block_alloc(mm, block, block_order, offset);
if (!block->left)
return -ENOMEM;
- block->right = drm_block_alloc(mm, block, block_order,
+ block->right = gpu_block_alloc(mm, block, block_order,
offset + (mm->chunk_size << block_order));
if (!block->right) {
- drm_block_free(mm, block->left);
+ gpu_block_free(mm, block->left);
return -ENOMEM;
}
mark_split(mm, block);
- if (drm_buddy_block_is_clear(block)) {
+ if (gpu_buddy_block_is_clear(block)) {
mark_cleared(block->left);
mark_cleared(block->right);
clear_reset(block);
@@ -460,34 +450,34 @@ static int split_block(struct drm_buddy *mm,
}
/**
- * drm_get_buddy - get buddy address
+ * gpu_get_buddy - get buddy address
*
- * @block: DRM buddy block
+ * @block: GPU buddy block
*
* Returns the corresponding buddy block for @block, or NULL
* if this is a root block and can't be merged further.
* Requires some kind of locking to protect against
* any concurrent allocate and free operations.
*/
-struct drm_buddy_block *
-drm_get_buddy(struct drm_buddy_block *block)
+struct gpu_buddy_block *
+gpu_get_buddy(struct gpu_buddy_block *block)
{
return __get_buddy(block);
}
-EXPORT_SYMBOL(drm_get_buddy);
+EXPORT_SYMBOL(gpu_get_buddy);
/**
- * drm_buddy_reset_clear - reset blocks clear state
+ * gpu_buddy_reset_clear - reset blocks clear state
*
- * @mm: DRM buddy manager
+ * @mm: GPU buddy manager
* @is_clear: blocks clear state
*
* Reset the clear state based on @is_clear value for each block
* in the freetree.
*/
-void drm_buddy_reset_clear(struct drm_buddy *mm, bool is_clear)
+void gpu_buddy_reset_clear(struct gpu_buddy *mm, bool is_clear)
{
- enum drm_buddy_free_tree src_tree, dst_tree;
+ enum gpu_buddy_free_tree src_tree, dst_tree;
u64 root_size, size, start;
unsigned int order;
int i;
@@ -495,60 +485,60 @@ void drm_buddy_reset_clear(struct drm_buddy *mm, bool is_clear)
size = mm->size;
for (i = 0; i < mm->n_roots; ++i) {
order = ilog2(size) - ilog2(mm->chunk_size);
- start = drm_buddy_block_offset(mm->roots[i]);
+ start = gpu_buddy_block_offset(mm->roots[i]);
__force_merge(mm, start, start + size, order);
root_size = mm->chunk_size << order;
size -= root_size;
}
- src_tree = is_clear ? DRM_BUDDY_DIRTY_TREE : DRM_BUDDY_CLEAR_TREE;
- dst_tree = is_clear ? DRM_BUDDY_CLEAR_TREE : DRM_BUDDY_DIRTY_TREE;
+ src_tree = is_clear ? GPU_BUDDY_DIRTY_TREE : GPU_BUDDY_CLEAR_TREE;
+ dst_tree = is_clear ? GPU_BUDDY_CLEAR_TREE : GPU_BUDDY_DIRTY_TREE;
for (i = 0; i <= mm->max_order; ++i) {
struct rb_root *root = &mm->free_trees[src_tree][i];
- struct drm_buddy_block *block, *tmp;
+ struct gpu_buddy_block *block, *tmp;
rbtree_postorder_for_each_entry_safe(block, tmp, root, rb) {
rbtree_remove(mm, block);
if (is_clear) {
mark_cleared(block);
- mm->clear_avail += drm_buddy_block_size(mm, block);
+ mm->clear_avail += gpu_buddy_block_size(mm, block);
} else {
clear_reset(block);
- mm->clear_avail -= drm_buddy_block_size(mm, block);
+ mm->clear_avail -= gpu_buddy_block_size(mm, block);
}
rbtree_insert(mm, block, dst_tree);
}
}
}
-EXPORT_SYMBOL(drm_buddy_reset_clear);
+EXPORT_SYMBOL(gpu_buddy_reset_clear);
/**
- * drm_buddy_free_block - free a block
+ * gpu_buddy_free_block - free a block
*
- * @mm: DRM buddy manager
+ * @mm: GPU buddy manager
* @block: block to be freed
*/
-void drm_buddy_free_block(struct drm_buddy *mm,
- struct drm_buddy_block *block)
+void gpu_buddy_free_block(struct gpu_buddy *mm,
+ struct gpu_buddy_block *block)
{
- BUG_ON(!drm_buddy_block_is_allocated(block));
- mm->avail += drm_buddy_block_size(mm, block);
- if (drm_buddy_block_is_clear(block))
- mm->clear_avail += drm_buddy_block_size(mm, block);
+ BUG_ON(!gpu_buddy_block_is_allocated(block));
+ mm->avail += gpu_buddy_block_size(mm, block);
+ if (gpu_buddy_block_is_clear(block))
+ mm->clear_avail += gpu_buddy_block_size(mm, block);
- __drm_buddy_free(mm, block, false);
+ __gpu_buddy_free(mm, block, false);
}
-EXPORT_SYMBOL(drm_buddy_free_block);
+EXPORT_SYMBOL(gpu_buddy_free_block);
-static void __drm_buddy_free_list(struct drm_buddy *mm,
+static void __gpu_buddy_free_list(struct gpu_buddy *mm,
struct list_head *objects,
bool mark_clear,
bool mark_dirty)
{
- struct drm_buddy_block *block, *on;
+ struct gpu_buddy_block *block, *on;
WARN_ON(mark_dirty && mark_clear);
@@ -557,13 +547,13 @@ static void __drm_buddy_free_list(struct drm_buddy *mm,
mark_cleared(block);
else if (mark_dirty)
clear_reset(block);
- drm_buddy_free_block(mm, block);
+ gpu_buddy_free_block(mm, block);
cond_resched();
}
INIT_LIST_HEAD(objects);
}
-static void drm_buddy_free_list_internal(struct drm_buddy *mm,
+static void gpu_buddy_free_list_internal(struct gpu_buddy *mm,
struct list_head *objects)
{
/*
@@ -571,43 +561,43 @@ static void drm_buddy_free_list_internal(struct drm_buddy *mm,
* at this point. For example we might have just failed part of the
* allocation.
*/
- __drm_buddy_free_list(mm, objects, false, false);
+ __gpu_buddy_free_list(mm, objects, false, false);
}
/**
- * drm_buddy_free_list - free blocks
+ * gpu_buddy_free_list - free blocks
*
- * @mm: DRM buddy manager
+ * @mm: GPU buddy manager
* @objects: input list head to free blocks
- * @flags: optional flags like DRM_BUDDY_CLEARED
+ * @flags: optional flags like GPU_BUDDY_CLEARED
*/
-void drm_buddy_free_list(struct drm_buddy *mm,
+void gpu_buddy_free_list(struct gpu_buddy *mm,
struct list_head *objects,
unsigned int flags)
{
- bool mark_clear = flags & DRM_BUDDY_CLEARED;
+ bool mark_clear = flags & GPU_BUDDY_CLEARED;
- __drm_buddy_free_list(mm, objects, mark_clear, !mark_clear);
+ __gpu_buddy_free_list(mm, objects, mark_clear, !mark_clear);
}
-EXPORT_SYMBOL(drm_buddy_free_list);
+EXPORT_SYMBOL(gpu_buddy_free_list);
-static bool block_incompatible(struct drm_buddy_block *block, unsigned int flags)
+static bool block_incompatible(struct gpu_buddy_block *block, unsigned int flags)
{
- bool needs_clear = flags & DRM_BUDDY_CLEAR_ALLOCATION;
+ bool needs_clear = flags & GPU_BUDDY_CLEAR_ALLOCATION;
- return needs_clear != drm_buddy_block_is_clear(block);
+ return needs_clear != gpu_buddy_block_is_clear(block);
}
-static struct drm_buddy_block *
-__alloc_range_bias(struct drm_buddy *mm,
+static struct gpu_buddy_block *
+__alloc_range_bias(struct gpu_buddy *mm,
u64 start, u64 end,
unsigned int order,
unsigned long flags,
bool fallback)
{
u64 req_size = mm->chunk_size << order;
- struct drm_buddy_block *block;
- struct drm_buddy_block *buddy;
+ struct gpu_buddy_block *block;
+ struct gpu_buddy_block *buddy;
LIST_HEAD(dfs);
int err;
int i;
@@ -622,23 +612,23 @@ __alloc_range_bias(struct drm_buddy *mm,
u64 block_end;
block = list_first_entry_or_null(&dfs,
- struct drm_buddy_block,
+ struct gpu_buddy_block,
tmp_link);
if (!block)
break;
list_del(&block->tmp_link);
- if (drm_buddy_block_order(block) < order)
+ if (gpu_buddy_block_order(block) < order)
continue;
- block_start = drm_buddy_block_offset(block);
- block_end = block_start + drm_buddy_block_size(mm, block) - 1;
+ block_start = gpu_buddy_block_offset(block);
+ block_end = block_start + gpu_buddy_block_size(mm, block) - 1;
if (!overlaps(start, end, block_start, block_end))
continue;
- if (drm_buddy_block_is_allocated(block))
+ if (gpu_buddy_block_is_allocated(block))
continue;
if (block_start < start || block_end > end) {
@@ -654,17 +644,17 @@ __alloc_range_bias(struct drm_buddy *mm,
continue;
if (contains(start, end, block_start, block_end) &&
- order == drm_buddy_block_order(block)) {
+ order == gpu_buddy_block_order(block)) {
/*
* Find the free block within the range.
*/
- if (drm_buddy_block_is_free(block))
+ if (gpu_buddy_block_is_free(block))
return block;
continue;
}
- if (!drm_buddy_block_is_split(block)) {
+ if (!gpu_buddy_block_is_split(block)) {
err = split_block(mm, block);
if (unlikely(err))
goto err_undo;
@@ -684,19 +674,19 @@ __alloc_range_bias(struct drm_buddy *mm,
*/
buddy = __get_buddy(block);
if (buddy &&
- (drm_buddy_block_is_free(block) &&
- drm_buddy_block_is_free(buddy)))
- __drm_buddy_free(mm, block, false);
+ (gpu_buddy_block_is_free(block) &&
+ gpu_buddy_block_is_free(buddy)))
+ __gpu_buddy_free(mm, block, false);
return ERR_PTR(err);
}
-static struct drm_buddy_block *
-__drm_buddy_alloc_range_bias(struct drm_buddy *mm,
+static struct gpu_buddy_block *
+__gpu_buddy_alloc_range_bias(struct gpu_buddy *mm,
u64 start, u64 end,
unsigned int order,
unsigned long flags)
{
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
bool fallback = false;
block = __alloc_range_bias(mm, start, end, order,
@@ -708,12 +698,12 @@ __drm_buddy_alloc_range_bias(struct drm_buddy *mm,
return block;
}
-static struct drm_buddy_block *
-get_maxblock(struct drm_buddy *mm,
+static struct gpu_buddy_block *
+get_maxblock(struct gpu_buddy *mm,
unsigned int order,
- enum drm_buddy_free_tree tree)
+ enum gpu_buddy_free_tree tree)
{
- struct drm_buddy_block *max_block = NULL, *block = NULL;
+ struct gpu_buddy_block *max_block = NULL, *block = NULL;
struct rb_root *root;
unsigned int i;
@@ -728,8 +718,8 @@ get_maxblock(struct drm_buddy *mm,
continue;
}
- if (drm_buddy_block_offset(block) >
- drm_buddy_block_offset(max_block)) {
+ if (gpu_buddy_block_offset(block) >
+ gpu_buddy_block_offset(max_block)) {
max_block = block;
}
}
@@ -737,25 +727,25 @@ get_maxblock(struct drm_buddy *mm,
return max_block;
}
-static struct drm_buddy_block *
-alloc_from_freetree(struct drm_buddy *mm,
+static struct gpu_buddy_block *
+alloc_from_freetree(struct gpu_buddy *mm,
unsigned int order,
unsigned long flags)
{
- struct drm_buddy_block *block = NULL;
+ struct gpu_buddy_block *block = NULL;
struct rb_root *root;
- enum drm_buddy_free_tree tree;
+ enum gpu_buddy_free_tree tree;
unsigned int tmp;
int err;
- tree = (flags & DRM_BUDDY_CLEAR_ALLOCATION) ?
- DRM_BUDDY_CLEAR_TREE : DRM_BUDDY_DIRTY_TREE;
+ tree = (flags & GPU_BUDDY_CLEAR_ALLOCATION) ?
+ GPU_BUDDY_CLEAR_TREE : GPU_BUDDY_DIRTY_TREE;
- if (flags & DRM_BUDDY_TOPDOWN_ALLOCATION) {
+ if (flags & GPU_BUDDY_TOPDOWN_ALLOCATION) {
block = get_maxblock(mm, order, tree);
if (block)
/* Store the obtained block order */
- tmp = drm_buddy_block_order(block);
+ tmp = gpu_buddy_block_order(block);
} else {
for (tmp = order; tmp <= mm->max_order; ++tmp) {
/* Get RB tree root for this order and tree */
@@ -768,8 +758,8 @@ alloc_from_freetree(struct drm_buddy *mm,
if (!block) {
/* Try allocating from the other tree */
- tree = (tree == DRM_BUDDY_CLEAR_TREE) ?
- DRM_BUDDY_DIRTY_TREE : DRM_BUDDY_CLEAR_TREE;
+ tree = (tree == GPU_BUDDY_CLEAR_TREE) ?
+ GPU_BUDDY_DIRTY_TREE : GPU_BUDDY_CLEAR_TREE;
for (tmp = order; tmp <= mm->max_order; ++tmp) {
root = &mm->free_trees[tree][tmp];
@@ -782,7 +772,7 @@ alloc_from_freetree(struct drm_buddy *mm,
return ERR_PTR(-ENOSPC);
}
- BUG_ON(!drm_buddy_block_is_free(block));
+ BUG_ON(!gpu_buddy_block_is_free(block));
while (tmp != order) {
err = split_block(mm, block);
@@ -796,18 +786,18 @@ alloc_from_freetree(struct drm_buddy *mm,
err_undo:
if (tmp != order)
- __drm_buddy_free(mm, block, false);
+ __gpu_buddy_free(mm, block, false);
return ERR_PTR(err);
}
-static int __alloc_range(struct drm_buddy *mm,
+static int __alloc_range(struct gpu_buddy *mm,
struct list_head *dfs,
u64 start, u64 size,
struct list_head *blocks,
u64 *total_allocated_on_err)
{
- struct drm_buddy_block *block;
- struct drm_buddy_block *buddy;
+ struct gpu_buddy_block *block;
+ struct gpu_buddy_block *buddy;
u64 total_allocated = 0;
LIST_HEAD(allocated);
u64 end;
@@ -820,31 +810,31 @@ static int __alloc_range(struct drm_buddy *mm,
u64 block_end;
block = list_first_entry_or_null(dfs,
- struct drm_buddy_block,
+ struct gpu_buddy_block,
tmp_link);
if (!block)
break;
list_del(&block->tmp_link);
- block_start = drm_buddy_block_offset(block);
- block_end = block_start + drm_buddy_block_size(mm, block) - 1;
+ block_start = gpu_buddy_block_offset(block);
+ block_end = block_start + gpu_buddy_block_size(mm, block) - 1;
if (!overlaps(start, end, block_start, block_end))
continue;
- if (drm_buddy_block_is_allocated(block)) {
+ if (gpu_buddy_block_is_allocated(block)) {
err = -ENOSPC;
goto err_free;
}
if (contains(start, end, block_start, block_end)) {
- if (drm_buddy_block_is_free(block)) {
+ if (gpu_buddy_block_is_free(block)) {
mark_allocated(mm, block);
- total_allocated += drm_buddy_block_size(mm, block);
- mm->avail -= drm_buddy_block_size(mm, block);
- if (drm_buddy_block_is_clear(block))
- mm->clear_avail -= drm_buddy_block_size(mm, block);
+ total_allocated += gpu_buddy_block_size(mm, block);
+ mm->avail -= gpu_buddy_block_size(mm, block);
+ if (gpu_buddy_block_is_clear(block))
+ mm->clear_avail -= gpu_buddy_block_size(mm, block);
list_add_tail(&block->link, &allocated);
continue;
} else if (!mm->clear_avail) {
@@ -853,7 +843,7 @@ static int __alloc_range(struct drm_buddy *mm,
}
}
- if (!drm_buddy_block_is_split(block)) {
+ if (!gpu_buddy_block_is_split(block)) {
err = split_block(mm, block);
if (unlikely(err))
goto err_undo;
@@ -880,22 +870,22 @@ static int __alloc_range(struct drm_buddy *mm,
*/
buddy = __get_buddy(block);
if (buddy &&
- (drm_buddy_block_is_free(block) &&
- drm_buddy_block_is_free(buddy)))
- __drm_buddy_free(mm, block, false);
+ (gpu_buddy_block_is_free(block) &&
+ gpu_buddy_block_is_free(buddy)))
+ __gpu_buddy_free(mm, block, false);
err_free:
if (err == -ENOSPC && total_allocated_on_err) {
list_splice_tail(&allocated, blocks);
*total_allocated_on_err = total_allocated;
} else {
- drm_buddy_free_list_internal(mm, &allocated);
+ gpu_buddy_free_list_internal(mm, &allocated);
}
return err;
}
-static int __drm_buddy_alloc_range(struct drm_buddy *mm,
+static int __gpu_buddy_alloc_range(struct gpu_buddy *mm,
u64 start,
u64 size,
u64 *total_allocated_on_err,
@@ -911,13 +901,13 @@ static int __drm_buddy_alloc_range(struct drm_buddy *mm,
blocks, total_allocated_on_err);
}
-static int __alloc_contig_try_harder(struct drm_buddy *mm,
+static int __alloc_contig_try_harder(struct gpu_buddy *mm,
u64 size,
u64 min_block_size,
struct list_head *blocks)
{
u64 rhs_offset, lhs_offset, lhs_size, filled;
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
unsigned int tree, order;
LIST_HEAD(blocks_lhs);
unsigned long pages;
@@ -943,8 +933,8 @@ static int __alloc_contig_try_harder(struct drm_buddy *mm,
block = rbtree_get_free_block(iter);
/* Allocate blocks traversing RHS */
- rhs_offset = drm_buddy_block_offset(block);
- err = __drm_buddy_alloc_range(mm, rhs_offset, size,
+ rhs_offset = gpu_buddy_block_offset(block);
+ err = __gpu_buddy_alloc_range(mm, rhs_offset, size,
&filled, blocks);
if (!err || err != -ENOSPC)
return err;
@@ -954,18 +944,18 @@ static int __alloc_contig_try_harder(struct drm_buddy *mm,
lhs_size = round_up(lhs_size, min_block_size);
/* Allocate blocks traversing LHS */
- lhs_offset = drm_buddy_block_offset(block) - lhs_size;
- err = __drm_buddy_alloc_range(mm, lhs_offset, lhs_size,
+ lhs_offset = gpu_buddy_block_offset(block) - lhs_size;
+ err = __gpu_buddy_alloc_range(mm, lhs_offset, lhs_size,
NULL, &blocks_lhs);
if (!err) {
list_splice(&blocks_lhs, blocks);
return 0;
} else if (err != -ENOSPC) {
- drm_buddy_free_list_internal(mm, blocks);
+ gpu_buddy_free_list_internal(mm, blocks);
return err;
}
/* Free blocks for the next iteration */
- drm_buddy_free_list_internal(mm, blocks);
+ gpu_buddy_free_list_internal(mm, blocks);
iter = rb_prev(iter);
}
@@ -975,9 +965,9 @@ static int __alloc_contig_try_harder(struct drm_buddy *mm,
}
/**
- * drm_buddy_block_trim - free unused pages
+ * gpu_buddy_block_trim - free unused pages
*
- * @mm: DRM buddy manager
+ * @mm: GPU buddy manager
* @start: start address to begin the trimming.
* @new_size: original size requested
* @blocks: Input and output list of allocated blocks.
@@ -993,13 +983,13 @@ static int __alloc_contig_try_harder(struct drm_buddy *mm,
* Returns:
* 0 on success, error code on failure.
*/
-int drm_buddy_block_trim(struct drm_buddy *mm,
+int gpu_buddy_block_trim(struct gpu_buddy *mm,
u64 *start,
u64 new_size,
struct list_head *blocks)
{
- struct drm_buddy_block *parent;
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *parent;
+ struct gpu_buddy_block *block;
u64 block_start, block_end;
LIST_HEAD(dfs);
u64 new_start;
@@ -1009,22 +999,22 @@ int drm_buddy_block_trim(struct drm_buddy *mm,
return -EINVAL;
block = list_first_entry(blocks,
- struct drm_buddy_block,
+ struct gpu_buddy_block,
link);
- block_start = drm_buddy_block_offset(block);
- block_end = block_start + drm_buddy_block_size(mm, block);
+ block_start = gpu_buddy_block_offset(block);
+ block_end = block_start + gpu_buddy_block_size(mm, block);
- if (WARN_ON(!drm_buddy_block_is_allocated(block)))
+ if (WARN_ON(!gpu_buddy_block_is_allocated(block)))
return -EINVAL;
- if (new_size > drm_buddy_block_size(mm, block))
+ if (new_size > gpu_buddy_block_size(mm, block))
return -EINVAL;
if (!new_size || !IS_ALIGNED(new_size, mm->chunk_size))
return -EINVAL;
- if (new_size == drm_buddy_block_size(mm, block))
+ if (new_size == gpu_buddy_block_size(mm, block))
return 0;
new_start = block_start;
@@ -1043,9 +1033,9 @@ int drm_buddy_block_trim(struct drm_buddy *mm,
list_del(&block->link);
mark_free(mm, block);
- mm->avail += drm_buddy_block_size(mm, block);
- if (drm_buddy_block_is_clear(block))
- mm->clear_avail += drm_buddy_block_size(mm, block);
+ mm->avail += gpu_buddy_block_size(mm, block);
+ if (gpu_buddy_block_is_clear(block))
+ mm->clear_avail += gpu_buddy_block_size(mm, block);
/* Prevent recursively freeing this node */
parent = block->parent;
@@ -1055,26 +1045,26 @@ int drm_buddy_block_trim(struct drm_buddy *mm,
err = __alloc_range(mm, &dfs, new_start, new_size, blocks, NULL);
if (err) {
mark_allocated(mm, block);
- mm->avail -= drm_buddy_block_size(mm, block);
- if (drm_buddy_block_is_clear(block))
- mm->clear_avail -= drm_buddy_block_size(mm, block);
+ mm->avail -= gpu_buddy_block_size(mm, block);
+ if (gpu_buddy_block_is_clear(block))
+ mm->clear_avail -= gpu_buddy_block_size(mm, block);
list_add(&block->link, blocks);
}
block->parent = parent;
return err;
}
-EXPORT_SYMBOL(drm_buddy_block_trim);
+EXPORT_SYMBOL(gpu_buddy_block_trim);
-static struct drm_buddy_block *
-__drm_buddy_alloc_blocks(struct drm_buddy *mm,
+static struct gpu_buddy_block *
+__gpu_buddy_alloc_blocks(struct gpu_buddy *mm,
u64 start, u64 end,
unsigned int order,
unsigned long flags)
{
- if (flags & DRM_BUDDY_RANGE_ALLOCATION)
+ if (flags & GPU_BUDDY_RANGE_ALLOCATION)
/* Allocate traversing within the range */
- return __drm_buddy_alloc_range_bias(mm, start, end,
+ return __gpu_buddy_alloc_range_bias(mm, start, end,
order, flags);
else
/* Allocate from freetree */
@@ -1082,15 +1072,15 @@ __drm_buddy_alloc_blocks(struct drm_buddy *mm,
}
/**
- * drm_buddy_alloc_blocks - allocate power-of-two blocks
+ * gpu_buddy_alloc_blocks - allocate power-of-two blocks
*
- * @mm: DRM buddy manager to allocate from
+ * @mm: GPU buddy manager to allocate from
* @start: start of the allowed range for this block
* @end: end of the allowed range for this block
* @size: size of the allocation in bytes
* @min_block_size: alignment of the allocation
* @blocks: output list head to add allocated blocks
- * @flags: DRM_BUDDY_*_ALLOCATION flags
+ * @flags: GPU_BUDDY_*_ALLOCATION flags
*
* alloc_range_bias() called on range limitations, which traverses
* the tree and returns the desired block.
@@ -1101,13 +1091,13 @@ __drm_buddy_alloc_blocks(struct drm_buddy *mm,
* Returns:
* 0 on success, error code on failure.
*/
-int drm_buddy_alloc_blocks(struct drm_buddy *mm,
+int gpu_buddy_alloc_blocks(struct gpu_buddy *mm,
u64 start, u64 end, u64 size,
u64 min_block_size,
struct list_head *blocks,
unsigned long flags)
{
- struct drm_buddy_block *block = NULL;
+ struct gpu_buddy_block *block = NULL;
u64 original_size, original_min_size;
unsigned int min_order, order;
LIST_HEAD(allocated);
@@ -1137,14 +1127,14 @@ int drm_buddy_alloc_blocks(struct drm_buddy *mm,
if (!IS_ALIGNED(start | end, min_block_size))
return -EINVAL;
- return __drm_buddy_alloc_range(mm, start, size, NULL, blocks);
+ return __gpu_buddy_alloc_range(mm, start, size, NULL, blocks);
}
original_size = size;
original_min_size = min_block_size;
/* Roundup the size to power of 2 */
- if (flags & DRM_BUDDY_CONTIGUOUS_ALLOCATION) {
+ if (flags & GPU_BUDDY_CONTIGUOUS_ALLOCATION) {
size = roundup_pow_of_two(size);
min_block_size = size;
/* Align size value to min_block_size */
@@ -1157,8 +1147,8 @@ int drm_buddy_alloc_blocks(struct drm_buddy *mm,
min_order = ilog2(min_block_size) - ilog2(mm->chunk_size);
if (order > mm->max_order || size > mm->size) {
- if ((flags & DRM_BUDDY_CONTIGUOUS_ALLOCATION) &&
- !(flags & DRM_BUDDY_RANGE_ALLOCATION))
+ if ((flags & GPU_BUDDY_CONTIGUOUS_ALLOCATION) &&
+ !(flags & GPU_BUDDY_RANGE_ALLOCATION))
return __alloc_contig_try_harder(mm, original_size,
original_min_size, blocks);
@@ -1171,7 +1161,7 @@ int drm_buddy_alloc_blocks(struct drm_buddy *mm,
BUG_ON(order < min_order);
do {
- block = __drm_buddy_alloc_blocks(mm, start,
+ block = __gpu_buddy_alloc_blocks(mm, start,
end,
order,
flags);
@@ -1182,7 +1172,7 @@ int drm_buddy_alloc_blocks(struct drm_buddy *mm,
/* Try allocation through force merge method */
if (mm->clear_avail &&
!__force_merge(mm, start, end, min_order)) {
- block = __drm_buddy_alloc_blocks(mm, start,
+ block = __gpu_buddy_alloc_blocks(mm, start,
end,
min_order,
flags);
@@ -1196,8 +1186,8 @@ int drm_buddy_alloc_blocks(struct drm_buddy *mm,
* Try contiguous block allocation through
* try harder method.
*/
- if (flags & DRM_BUDDY_CONTIGUOUS_ALLOCATION &&
- !(flags & DRM_BUDDY_RANGE_ALLOCATION))
+ if (flags & GPU_BUDDY_CONTIGUOUS_ALLOCATION &&
+ !(flags & GPU_BUDDY_RANGE_ALLOCATION))
return __alloc_contig_try_harder(mm,
original_size,
original_min_size,
@@ -1208,9 +1198,9 @@ int drm_buddy_alloc_blocks(struct drm_buddy *mm,
} while (1);
mark_allocated(mm, block);
- mm->avail -= drm_buddy_block_size(mm, block);
- if (drm_buddy_block_is_clear(block))
- mm->clear_avail -= drm_buddy_block_size(mm, block);
+ mm->avail -= gpu_buddy_block_size(mm, block);
+ if (gpu_buddy_block_is_clear(block))
+ mm->clear_avail -= gpu_buddy_block_size(mm, block);
kmemleak_update_trace(block);
list_add_tail(&block->link, &allocated);
@@ -1221,7 +1211,7 @@ int drm_buddy_alloc_blocks(struct drm_buddy *mm,
} while (1);
/* Trim the allocated block to the required size */
- if (!(flags & DRM_BUDDY_TRIM_DISABLE) &&
+ if (!(flags & GPU_BUDDY_TRIM_DISABLE) &&
original_size != size) {
struct list_head *trim_list;
LIST_HEAD(temp);
@@ -1234,11 +1224,11 @@ int drm_buddy_alloc_blocks(struct drm_buddy *mm,
block = list_last_entry(&allocated, typeof(*block), link);
list_move(&block->link, &temp);
trim_list = &temp;
- trim_size = drm_buddy_block_size(mm, block) -
+ trim_size = gpu_buddy_block_size(mm, block) -
(size - original_size);
}
- drm_buddy_block_trim(mm,
+ gpu_buddy_block_trim(mm,
NULL,
trim_size,
trim_list);
@@ -1251,44 +1241,42 @@ int drm_buddy_alloc_blocks(struct drm_buddy *mm,
return 0;
err_free:
- drm_buddy_free_list_internal(mm, &allocated);
+ gpu_buddy_free_list_internal(mm, &allocated);
return err;
}
-EXPORT_SYMBOL(drm_buddy_alloc_blocks);
+EXPORT_SYMBOL(gpu_buddy_alloc_blocks);
/**
- * drm_buddy_block_print - print block information
+ * gpu_buddy_block_print - print block information
*
- * @mm: DRM buddy manager
- * @block: DRM buddy block
- * @p: DRM printer to use
+ * @mm: GPU buddy manager
+ * @block: GPU buddy block
*/
-void drm_buddy_block_print(struct drm_buddy *mm,
- struct drm_buddy_block *block,
- struct drm_printer *p)
+void gpu_buddy_block_print(struct gpu_buddy *mm,
+ struct gpu_buddy_block *block)
{
- u64 start = drm_buddy_block_offset(block);
- u64 size = drm_buddy_block_size(mm, block);
+ u64 start = gpu_buddy_block_offset(block);
+ u64 size = gpu_buddy_block_size(mm, block);
- drm_printf(p, "%#018llx-%#018llx: %llu\n", start, start + size, size);
+ pr_info("%#018llx-%#018llx: %llu\n", start, start + size, size);
}
-EXPORT_SYMBOL(drm_buddy_block_print);
+EXPORT_SYMBOL(gpu_buddy_block_print);
/**
- * drm_buddy_print - print allocator state
+ * gpu_buddy_print - print allocator state
*
- * @mm: DRM buddy manager
- * @p: DRM printer to use
+ * @mm: GPU buddy manager
+ * @p: GPU printer to use
*/
-void drm_buddy_print(struct drm_buddy *mm, struct drm_printer *p)
+void gpu_buddy_print(struct gpu_buddy *mm)
{
int order;
- drm_printf(p, "chunk_size: %lluKiB, total: %lluMiB, free: %lluMiB, clear_free: %lluMiB\n",
- mm->chunk_size >> 10, mm->size >> 20, mm->avail >> 20, mm->clear_avail >> 20);
+ pr_info("chunk_size: %lluKiB, total: %lluMiB, free: %lluMiB, clear_free: %lluMiB\n",
+ mm->chunk_size >> 10, mm->size >> 20, mm->avail >> 20, mm->clear_avail >> 20);
for (order = mm->max_order; order >= 0; order--) {
- struct drm_buddy_block *block, *tmp;
+ struct gpu_buddy_block *block, *tmp;
struct rb_root *root;
u64 count = 0, free;
unsigned int tree;
@@ -1297,40 +1285,38 @@ void drm_buddy_print(struct drm_buddy *mm, struct drm_printer *p)
root = &mm->free_trees[tree][order];
rbtree_postorder_for_each_entry_safe(block, tmp, root, rb) {
- BUG_ON(!drm_buddy_block_is_free(block));
+ BUG_ON(!gpu_buddy_block_is_free(block));
count++;
}
}
- drm_printf(p, "order-%2d ", order);
-
free = count * (mm->chunk_size << order);
if (free < SZ_1M)
- drm_printf(p, "free: %8llu KiB", free >> 10);
+ pr_info("order-%2d free: %8llu KiB, blocks: %llu\n",
+ order, free >> 10, count);
else
- drm_printf(p, "free: %8llu MiB", free >> 20);
-
- drm_printf(p, ", blocks: %llu\n", count);
+ pr_info("order-%2d free: %8llu MiB, blocks: %llu\n",
+ order, free >> 20, count);
}
}
-EXPORT_SYMBOL(drm_buddy_print);
+EXPORT_SYMBOL(gpu_buddy_print);
-static void drm_buddy_module_exit(void)
+static void gpu_buddy_module_exit(void)
{
kmem_cache_destroy(slab_blocks);
}
-static int __init drm_buddy_module_init(void)
+static int __init gpu_buddy_module_init(void)
{
- slab_blocks = KMEM_CACHE(drm_buddy_block, 0);
+ slab_blocks = KMEM_CACHE(gpu_buddy_block, 0);
if (!slab_blocks)
return -ENOMEM;
return 0;
}
-module_init(drm_buddy_module_init);
-module_exit(drm_buddy_module_exit);
+module_init(gpu_buddy_module_init);
+module_exit(gpu_buddy_module_exit);
-MODULE_DESCRIPTION("DRM Buddy Allocator");
+MODULE_DESCRIPTION("GPU Buddy Allocator");
MODULE_LICENSE("Dual MIT/GPL");
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index ca2a2801e77f..f48d00fe28cc 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -220,6 +220,7 @@ config DRM_GPUSVM
config DRM_BUDDY
tristate
depends on DRM
+ select GPU_BUDDY
help
A page based buddy allocator
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index 5c86bc908955..6ff0f6f10b58 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -113,7 +113,7 @@ drm_gpusvm_helper-$(CONFIG_ZONE_DEVICE) += \
obj-$(CONFIG_DRM_GPUSVM) += drm_gpusvm_helper.o
-obj-$(CONFIG_DRM_BUDDY) += ../buddy.o
+obj-$(CONFIG_DRM_BUDDY) += drm_buddy.o
drm_dma_helper-y := drm_gem_dma_helper.o
drm_dma_helper-$(CONFIG_DRM_FBDEV_EMULATION) += drm_fbdev_dma.o
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index f582113d78b7..149f8f942eae 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -5663,7 +5663,7 @@ int amdgpu_ras_add_critical_region(struct amdgpu_device *adev,
struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
struct amdgpu_vram_mgr_resource *vres;
struct ras_critical_region *region;
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
int ret = 0;
if (!bo || !bo->tbo.resource)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_res_cursor.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_res_cursor.h
index be2e56ce1355..8908d9e08a30 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_res_cursor.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_res_cursor.h
@@ -55,7 +55,7 @@ static inline void amdgpu_res_first(struct ttm_resource *res,
uint64_t start, uint64_t size,
struct amdgpu_res_cursor *cur)
{
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
struct list_head *head, *next;
struct drm_mm_node *node;
@@ -71,7 +71,7 @@ static inline void amdgpu_res_first(struct ttm_resource *res,
head = &to_amdgpu_vram_mgr_resource(res)->blocks;
block = list_first_entry_or_null(head,
- struct drm_buddy_block,
+ struct gpu_buddy_block,
link);
if (!block)
goto fallback;
@@ -81,7 +81,7 @@ static inline void amdgpu_res_first(struct ttm_resource *res,
next = block->link.next;
if (next != head)
- block = list_entry(next, struct drm_buddy_block, link);
+ block = list_entry(next, struct gpu_buddy_block, link);
}
cur->start = amdgpu_vram_mgr_block_start(block) + start;
@@ -125,7 +125,7 @@ static inline void amdgpu_res_first(struct ttm_resource *res,
*/
static inline void amdgpu_res_next(struct amdgpu_res_cursor *cur, uint64_t size)
{
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
struct drm_mm_node *node;
struct list_head *next;
@@ -146,7 +146,7 @@ static inline void amdgpu_res_next(struct amdgpu_res_cursor *cur, uint64_t size)
block = cur->node;
next = block->link.next;
- block = list_entry(next, struct drm_buddy_block, link);
+ block = list_entry(next, struct gpu_buddy_block, link);
cur->node = block;
cur->start = amdgpu_vram_mgr_block_start(block);
@@ -175,7 +175,7 @@ static inline void amdgpu_res_next(struct amdgpu_res_cursor *cur, uint64_t size)
*/
static inline bool amdgpu_res_cleared(struct amdgpu_res_cursor *cur)
{
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
switch (cur->mem_type) {
case TTM_PL_VRAM:
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
index 9d934c07fa6b..cd94f6efb7cb 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
@@ -25,6 +25,7 @@
#include <linux/dma-mapping.h>
#include <drm/ttm/ttm_range_manager.h>
#include <drm/drm_drv.h>
+#include <drm/drm_buddy.h>
#include "amdgpu.h"
#include "amdgpu_vm.h"
@@ -52,15 +53,15 @@ to_amdgpu_device(struct amdgpu_vram_mgr *mgr)
return container_of(mgr, struct amdgpu_device, mman.vram_mgr);
}
-static inline struct drm_buddy_block *
+static inline struct gpu_buddy_block *
amdgpu_vram_mgr_first_block(struct list_head *list)
{
- return list_first_entry_or_null(list, struct drm_buddy_block, link);
+ return list_first_entry_or_null(list, struct gpu_buddy_block, link);
}
static inline bool amdgpu_is_vram_mgr_blocks_contiguous(struct list_head *head)
{
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
u64 start, size;
block = amdgpu_vram_mgr_first_block(head);
@@ -71,7 +72,7 @@ static inline bool amdgpu_is_vram_mgr_blocks_contiguous(struct list_head *head)
start = amdgpu_vram_mgr_block_start(block);
size = amdgpu_vram_mgr_block_size(block);
- block = list_entry(block->link.next, struct drm_buddy_block, link);
+ block = list_entry(block->link.next, struct gpu_buddy_block, link);
if (start + size != amdgpu_vram_mgr_block_start(block))
return false;
}
@@ -81,7 +82,7 @@ static inline bool amdgpu_is_vram_mgr_blocks_contiguous(struct list_head *head)
static inline u64 amdgpu_vram_mgr_blocks_size(struct list_head *head)
{
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
u64 size = 0;
list_for_each_entry(block, head, link)
@@ -254,7 +255,7 @@ const struct attribute_group amdgpu_vram_mgr_attr_group = {
* Calculate how many bytes of the DRM BUDDY block are inside visible VRAM
*/
static u64 amdgpu_vram_mgr_vis_size(struct amdgpu_device *adev,
- struct drm_buddy_block *block)
+ struct gpu_buddy_block *block)
{
u64 start = amdgpu_vram_mgr_block_start(block);
u64 end = start + amdgpu_vram_mgr_block_size(block);
@@ -279,7 +280,7 @@ u64 amdgpu_vram_mgr_bo_visible_size(struct amdgpu_bo *bo)
struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
struct ttm_resource *res = bo->tbo.resource;
struct amdgpu_vram_mgr_resource *vres = to_amdgpu_vram_mgr_resource(res);
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
u64 usage = 0;
if (amdgpu_gmc_vram_full_visible(&adev->gmc))
@@ -299,15 +300,15 @@ static void amdgpu_vram_mgr_do_reserve(struct ttm_resource_manager *man)
{
struct amdgpu_vram_mgr *mgr = to_vram_mgr(man);
struct amdgpu_device *adev = to_amdgpu_device(mgr);
- struct drm_buddy *mm = &mgr->mm;
+ struct gpu_buddy *mm = &mgr->mm;
struct amdgpu_vram_reservation *rsv, *temp;
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
uint64_t vis_usage;
list_for_each_entry_safe(rsv, temp, &mgr->reservations_pending, blocks) {
- if (drm_buddy_alloc_blocks(mm, rsv->start, rsv->start + rsv->size,
+ if (gpu_buddy_alloc_blocks(mm, rsv->start, rsv->start + rsv->size,
rsv->size, mm->chunk_size, &rsv->allocated,
- DRM_BUDDY_RANGE_ALLOCATION))
+ GPU_BUDDY_RANGE_ALLOCATION))
continue;
block = amdgpu_vram_mgr_first_block(&rsv->allocated);
@@ -403,7 +404,7 @@ int amdgpu_vram_mgr_query_address_block_info(struct amdgpu_vram_mgr *mgr,
uint64_t address, struct amdgpu_vram_block_info *info)
{
struct amdgpu_vram_mgr_resource *vres;
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
u64 start, size;
int ret = -ENOENT;
@@ -450,8 +451,8 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man,
struct amdgpu_vram_mgr_resource *vres;
u64 size, remaining_size, lpfn, fpfn;
unsigned int adjust_dcc_size = 0;
- struct drm_buddy *mm = &mgr->mm;
- struct drm_buddy_block *block;
+ struct gpu_buddy *mm = &mgr->mm;
+ struct gpu_buddy_block *block;
unsigned long pages_per_block;
int r;
@@ -493,17 +494,17 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man,
INIT_LIST_HEAD(&vres->blocks);
if (place->flags & TTM_PL_FLAG_TOPDOWN)
- vres->flags |= DRM_BUDDY_TOPDOWN_ALLOCATION;
+ vres->flags |= GPU_BUDDY_TOPDOWN_ALLOCATION;
if (bo->flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS)
- vres->flags |= DRM_BUDDY_CONTIGUOUS_ALLOCATION;
+ vres->flags |= GPU_BUDDY_CONTIGUOUS_ALLOCATION;
if (bo->flags & AMDGPU_GEM_CREATE_VRAM_CLEARED)
- vres->flags |= DRM_BUDDY_CLEAR_ALLOCATION;
+ vres->flags |= GPU_BUDDY_CLEAR_ALLOCATION;
if (fpfn || lpfn != mgr->mm.size)
/* Allocate blocks in desired range */
- vres->flags |= DRM_BUDDY_RANGE_ALLOCATION;
+ vres->flags |= GPU_BUDDY_RANGE_ALLOCATION;
if (bo->flags & AMDGPU_GEM_CREATE_GFX12_DCC &&
adev->gmc.gmc_funcs->get_dcc_alignment)
@@ -516,7 +517,7 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man,
dcc_size = roundup_pow_of_two(vres->base.size + adjust_dcc_size);
remaining_size = (u64)dcc_size;
- vres->flags |= DRM_BUDDY_TRIM_DISABLE;
+ vres->flags |= GPU_BUDDY_TRIM_DISABLE;
}
mutex_lock(&mgr->lock);
@@ -536,7 +537,7 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man,
BUG_ON(min_block_size < mm->chunk_size);
- r = drm_buddy_alloc_blocks(mm, fpfn,
+ r = gpu_buddy_alloc_blocks(mm, fpfn,
lpfn,
size,
min_block_size,
@@ -545,7 +546,7 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man,
if (unlikely(r == -ENOSPC) && pages_per_block == ~0ul &&
!(place->flags & TTM_PL_FLAG_CONTIGUOUS)) {
- vres->flags &= ~DRM_BUDDY_CONTIGUOUS_ALLOCATION;
+ vres->flags &= ~GPU_BUDDY_CONTIGUOUS_ALLOCATION;
pages_per_block = max_t(u32, 2UL << (20UL - PAGE_SHIFT),
tbo->page_alignment);
@@ -566,7 +567,7 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man,
list_add_tail(&vres->vres_node, &mgr->allocated_vres_list);
if (bo->flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS && adjust_dcc_size) {
- struct drm_buddy_block *dcc_block;
+ struct gpu_buddy_block *dcc_block;
unsigned long dcc_start;
u64 trim_start;
@@ -576,7 +577,7 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man,
roundup((unsigned long)amdgpu_vram_mgr_block_start(dcc_block),
adjust_dcc_size);
trim_start = (u64)dcc_start;
- drm_buddy_block_trim(mm, &trim_start,
+ gpu_buddy_block_trim(mm, &trim_start,
(u64)vres->base.size,
&vres->blocks);
}
@@ -614,7 +615,7 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man,
return 0;
error_free_blocks:
- drm_buddy_free_list(mm, &vres->blocks, 0);
+ gpu_buddy_free_list(mm, &vres->blocks, 0);
mutex_unlock(&mgr->lock);
error_fini:
ttm_resource_fini(man, &vres->base);
@@ -637,8 +638,8 @@ static void amdgpu_vram_mgr_del(struct ttm_resource_manager *man,
struct amdgpu_vram_mgr_resource *vres = to_amdgpu_vram_mgr_resource(res);
struct amdgpu_vram_mgr *mgr = to_vram_mgr(man);
struct amdgpu_device *adev = to_amdgpu_device(mgr);
- struct drm_buddy *mm = &mgr->mm;
- struct drm_buddy_block *block;
+ struct gpu_buddy *mm = &mgr->mm;
+ struct gpu_buddy_block *block;
uint64_t vis_usage = 0;
mutex_lock(&mgr->lock);
@@ -649,7 +650,7 @@ static void amdgpu_vram_mgr_del(struct ttm_resource_manager *man,
list_for_each_entry(block, &vres->blocks, link)
vis_usage += amdgpu_vram_mgr_vis_size(adev, block);
- drm_buddy_free_list(mm, &vres->blocks, vres->flags);
+ gpu_buddy_free_list(mm, &vres->blocks, vres->flags);
amdgpu_vram_mgr_do_reserve(man);
mutex_unlock(&mgr->lock);
@@ -688,7 +689,7 @@ int amdgpu_vram_mgr_alloc_sgt(struct amdgpu_device *adev,
if (!*sgt)
return -ENOMEM;
- /* Determine the number of DRM_BUDDY blocks to export */
+ /* Determine the number of GPU_BUDDY blocks to export */
amdgpu_res_first(res, offset, length, &cursor);
while (cursor.remaining) {
num_entries++;
@@ -704,10 +705,10 @@ int amdgpu_vram_mgr_alloc_sgt(struct amdgpu_device *adev,
sg->length = 0;
/*
- * Walk down DRM_BUDDY blocks to populate scatterlist nodes
- * @note: Use iterator api to get first the DRM_BUDDY block
+ * Walk down GPU_BUDDY blocks to populate scatterlist nodes
+ * @note: Use iterator api to get first the GPU_BUDDY block
* and the number of bytes from it. Access the following
- * DRM_BUDDY block(s) if more buffer needs to exported
+ * GPU_BUDDY block(s) if more buffer needs to exported
*/
amdgpu_res_first(res, offset, length, &cursor);
for_each_sgtable_sg((*sgt), sg, i) {
@@ -792,10 +793,10 @@ uint64_t amdgpu_vram_mgr_vis_usage(struct amdgpu_vram_mgr *mgr)
void amdgpu_vram_mgr_clear_reset_blocks(struct amdgpu_device *adev)
{
struct amdgpu_vram_mgr *mgr = &adev->mman.vram_mgr;
- struct drm_buddy *mm = &mgr->mm;
+ struct gpu_buddy *mm = &mgr->mm;
mutex_lock(&mgr->lock);
- drm_buddy_reset_clear(mm, false);
+ gpu_buddy_reset_clear(mm, false);
mutex_unlock(&mgr->lock);
}
@@ -815,7 +816,7 @@ static bool amdgpu_vram_mgr_intersects(struct ttm_resource_manager *man,
size_t size)
{
struct amdgpu_vram_mgr_resource *mgr = to_amdgpu_vram_mgr_resource(res);
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
/* Check each drm buddy block individually */
list_for_each_entry(block, &mgr->blocks, link) {
@@ -848,7 +849,7 @@ static bool amdgpu_vram_mgr_compatible(struct ttm_resource_manager *man,
size_t size)
{
struct amdgpu_vram_mgr_resource *mgr = to_amdgpu_vram_mgr_resource(res);
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
/* Check each drm buddy block individually */
list_for_each_entry(block, &mgr->blocks, link) {
@@ -877,7 +878,7 @@ static void amdgpu_vram_mgr_debug(struct ttm_resource_manager *man,
struct drm_printer *printer)
{
struct amdgpu_vram_mgr *mgr = to_vram_mgr(man);
- struct drm_buddy *mm = &mgr->mm;
+ struct gpu_buddy *mm = &mgr->mm;
struct amdgpu_vram_reservation *rsv;
drm_printf(printer, " vis usage:%llu\n",
@@ -930,7 +931,7 @@ int amdgpu_vram_mgr_init(struct amdgpu_device *adev)
mgr->default_page_size = PAGE_SIZE;
man->func = &amdgpu_vram_mgr_func;
- err = drm_buddy_init(&mgr->mm, man->size, PAGE_SIZE);
+ err = gpu_buddy_init(&mgr->mm, man->size, PAGE_SIZE);
if (err)
return err;
@@ -965,11 +966,11 @@ void amdgpu_vram_mgr_fini(struct amdgpu_device *adev)
kfree(rsv);
list_for_each_entry_safe(rsv, temp, &mgr->reserved_pages, blocks) {
- drm_buddy_free_list(&mgr->mm, &rsv->allocated, 0);
+ gpu_buddy_free_list(&mgr->mm, &rsv->allocated, 0);
kfree(rsv);
}
if (!adev->gmc.is_app_apu)
- drm_buddy_fini(&mgr->mm);
+ gpu_buddy_fini(&mgr->mm);
mutex_unlock(&mgr->lock);
ttm_resource_manager_cleanup(man);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.h
index 874779618056..429a21a2e9b2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.h
@@ -28,7 +28,7 @@
struct amdgpu_vram_mgr {
struct ttm_resource_manager manager;
- struct drm_buddy mm;
+ struct gpu_buddy mm;
/* protects access to buffer objects */
struct mutex lock;
struct list_head reservations_pending;
@@ -57,19 +57,19 @@ struct amdgpu_vram_mgr_resource {
struct amdgpu_vres_task task;
};
-static inline u64 amdgpu_vram_mgr_block_start(struct drm_buddy_block *block)
+static inline u64 amdgpu_vram_mgr_block_start(struct gpu_buddy_block *block)
{
- return drm_buddy_block_offset(block);
+ return gpu_buddy_block_offset(block);
}
-static inline u64 amdgpu_vram_mgr_block_size(struct drm_buddy_block *block)
+static inline u64 amdgpu_vram_mgr_block_size(struct gpu_buddy_block *block)
{
- return (u64)PAGE_SIZE << drm_buddy_block_order(block);
+ return (u64)PAGE_SIZE << gpu_buddy_block_order(block);
}
-static inline bool amdgpu_vram_mgr_is_cleared(struct drm_buddy_block *block)
+static inline bool amdgpu_vram_mgr_is_cleared(struct gpu_buddy_block *block)
{
- return drm_buddy_block_is_clear(block);
+ return gpu_buddy_block_is_clear(block);
}
static inline struct amdgpu_vram_mgr_resource *
@@ -82,8 +82,8 @@ static inline void amdgpu_vram_mgr_set_cleared(struct ttm_resource *res)
{
struct amdgpu_vram_mgr_resource *ares = to_amdgpu_vram_mgr_resource(res);
- WARN_ON(ares->flags & DRM_BUDDY_CLEARED);
- ares->flags |= DRM_BUDDY_CLEARED;
+ WARN_ON(ares->flags & GPU_BUDDY_CLEARED);
+ ares->flags |= GPU_BUDDY_CLEARED;
}
int amdgpu_vram_mgr_query_address_block_info(struct amdgpu_vram_mgr *mgr,
diff --git a/drivers/gpu/drm/drm_buddy.c b/drivers/gpu/drm/drm_buddy.c
new file mode 100644
index 000000000000..841f3de5f307
--- /dev/null
+++ b/drivers/gpu/drm/drm_buddy.c
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2021 Intel Corporation
+ */
+
+#include <kunit/test-bug.h>
+
+#include <linux/export.h>
+#include <linux/kmemleak.h>
+#include <linux/module.h>
+#include <linux/sizes.h>
+
+#include <linux/gpu_buddy.h>
+#include <drm/drm_buddy.h>
+#include <drm/drm_print.h>
+
+/**
+ * drm_buddy_block_print - print block information
+ *
+ * @mm: DRM buddy manager
+ * @block: DRM buddy block
+ * @p: DRM printer to use
+ */
+void drm_buddy_block_print(struct gpu_buddy *mm,
+ struct gpu_buddy_block *block,
+ struct drm_printer *p)
+{
+ u64 start = gpu_buddy_block_offset(block);
+ u64 size = gpu_buddy_block_size(mm, block);
+
+ drm_printf(p, "%#018llx-%#018llx: %llu\n", start, start + size, size);
+}
+EXPORT_SYMBOL(drm_buddy_block_print);
+
+/**
+ * drm_buddy_print - print allocator state
+ *
+ * @mm: DRM buddy manager
+ * @p: DRM printer to use
+ */
+void drm_buddy_print(struct gpu_buddy *mm, struct drm_printer *p)
+{
+ int order;
+
+ drm_printf(p, "chunk_size: %lluKiB, total: %lluMiB, free: %lluMiB, clear_free: %lluMiB\n",
+ mm->chunk_size >> 10, mm->size >> 20, mm->avail >> 20, mm->clear_avail >> 20);
+
+ for (order = mm->max_order; order >= 0; order--) {
+ struct gpu_buddy_block *block, *tmp;
+ struct rb_root *root;
+ u64 count = 0, free;
+ unsigned int tree;
+
+ for_each_free_tree(tree) {
+ root = &mm->free_trees[tree][order];
+
+ rbtree_postorder_for_each_entry_safe(block, tmp, root, rb) {
+ BUG_ON(!gpu_buddy_block_is_free(block));
+ count++;
+ }
+ }
+
+ drm_printf(p, "order-%2d ", order);
+
+ free = count * (mm->chunk_size << order);
+ if (free < SZ_1M)
+ drm_printf(p, "free: %8llu KiB", free >> 10);
+ else
+ drm_printf(p, "free: %8llu MiB", free >> 20);
+
+ drm_printf(p, ", blocks: %llu\n", count);
+ }
+}
+EXPORT_SYMBOL(drm_buddy_print);
+
+MODULE_DESCRIPTION("DRM-specific GPU Buddy Allocator Print Helpers");
+MODULE_LICENSE("Dual MIT/GPL");
diff --git a/drivers/gpu/drm/i915/i915_scatterlist.c b/drivers/gpu/drm/i915/i915_scatterlist.c
index 30246f02bcfe..6a34dae13769 100644
--- a/drivers/gpu/drm/i915/i915_scatterlist.c
+++ b/drivers/gpu/drm/i915/i915_scatterlist.c
@@ -167,9 +167,9 @@ struct i915_refct_sgt *i915_rsgt_from_buddy_resource(struct ttm_resource *res,
struct i915_ttm_buddy_resource *bman_res = to_ttm_buddy_resource(res);
const u64 size = res->size;
const u32 max_segment = round_down(UINT_MAX, page_alignment);
- struct drm_buddy *mm = bman_res->mm;
+ struct gpu_buddy *mm = bman_res->mm;
struct list_head *blocks = &bman_res->blocks;
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
struct i915_refct_sgt *rsgt;
struct scatterlist *sg;
struct sg_table *st;
@@ -202,8 +202,8 @@ struct i915_refct_sgt *i915_rsgt_from_buddy_resource(struct ttm_resource *res,
list_for_each_entry(block, blocks, link) {
u64 block_size, offset;
- block_size = min_t(u64, size, drm_buddy_block_size(mm, block));
- offset = drm_buddy_block_offset(block);
+ block_size = min_t(u64, size, gpu_buddy_block_size(mm, block));
+ offset = gpu_buddy_block_offset(block);
while (block_size) {
u64 len;
diff --git a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c
index 6b256d95badd..c5ca90088705 100644
--- a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c
+++ b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c
@@ -6,6 +6,7 @@
#include <linux/slab.h>
#include <linux/gpu_buddy.h>
+#include <drm/drm_buddy.h>
#include <drm/drm_print.h>
#include <drm/ttm/ttm_placement.h>
#include <drm/ttm/ttm_bo.h>
@@ -16,7 +17,7 @@
struct i915_ttm_buddy_manager {
struct ttm_resource_manager manager;
- struct drm_buddy mm;
+ struct gpu_buddy mm;
struct list_head reserved;
struct mutex lock;
unsigned long visible_size;
@@ -38,7 +39,7 @@ static int i915_ttm_buddy_man_alloc(struct ttm_resource_manager *man,
{
struct i915_ttm_buddy_manager *bman = to_buddy_manager(man);
struct i915_ttm_buddy_resource *bman_res;
- struct drm_buddy *mm = &bman->mm;
+ struct gpu_buddy *mm = &bman->mm;
unsigned long n_pages, lpfn;
u64 min_page_size;
u64 size;
@@ -57,13 +58,13 @@ static int i915_ttm_buddy_man_alloc(struct ttm_resource_manager *man,
bman_res->mm = mm;
if (place->flags & TTM_PL_FLAG_TOPDOWN)
- bman_res->flags |= DRM_BUDDY_TOPDOWN_ALLOCATION;
+ bman_res->flags |= GPU_BUDDY_TOPDOWN_ALLOCATION;
if (place->flags & TTM_PL_FLAG_CONTIGUOUS)
- bman_res->flags |= DRM_BUDDY_CONTIGUOUS_ALLOCATION;
+ bman_res->flags |= GPU_BUDDY_CONTIGUOUS_ALLOCATION;
if (place->fpfn || lpfn != man->size)
- bman_res->flags |= DRM_BUDDY_RANGE_ALLOCATION;
+ bman_res->flags |= GPU_BUDDY_RANGE_ALLOCATION;
GEM_BUG_ON(!bman_res->base.size);
size = bman_res->base.size;
@@ -89,7 +90,7 @@ static int i915_ttm_buddy_man_alloc(struct ttm_resource_manager *man,
goto err_free_res;
}
- err = drm_buddy_alloc_blocks(mm, (u64)place->fpfn << PAGE_SHIFT,
+ err = gpu_buddy_alloc_blocks(mm, (u64)place->fpfn << PAGE_SHIFT,
(u64)lpfn << PAGE_SHIFT,
(u64)n_pages << PAGE_SHIFT,
min_page_size,
@@ -101,15 +102,15 @@ static int i915_ttm_buddy_man_alloc(struct ttm_resource_manager *man,
if (lpfn <= bman->visible_size) {
bman_res->used_visible_size = PFN_UP(bman_res->base.size);
} else {
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
list_for_each_entry(block, &bman_res->blocks, link) {
unsigned long start =
- drm_buddy_block_offset(block) >> PAGE_SHIFT;
+ gpu_buddy_block_offset(block) >> PAGE_SHIFT;
if (start < bman->visible_size) {
unsigned long end = start +
- (drm_buddy_block_size(mm, block) >> PAGE_SHIFT);
+ (gpu_buddy_block_size(mm, block) >> PAGE_SHIFT);
bman_res->used_visible_size +=
min(end, bman->visible_size) - start;
@@ -126,7 +127,7 @@ static int i915_ttm_buddy_man_alloc(struct ttm_resource_manager *man,
return 0;
err_free_blocks:
- drm_buddy_free_list(mm, &bman_res->blocks, 0);
+ gpu_buddy_free_list(mm, &bman_res->blocks, 0);
mutex_unlock(&bman->lock);
err_free_res:
ttm_resource_fini(man, &bman_res->base);
@@ -141,7 +142,7 @@ static void i915_ttm_buddy_man_free(struct ttm_resource_manager *man,
struct i915_ttm_buddy_manager *bman = to_buddy_manager(man);
mutex_lock(&bman->lock);
- drm_buddy_free_list(&bman->mm, &bman_res->blocks, 0);
+ gpu_buddy_free_list(&bman->mm, &bman_res->blocks, 0);
bman->visible_avail += bman_res->used_visible_size;
mutex_unlock(&bman->lock);
@@ -156,8 +157,8 @@ static bool i915_ttm_buddy_man_intersects(struct ttm_resource_manager *man,
{
struct i915_ttm_buddy_resource *bman_res = to_ttm_buddy_resource(res);
struct i915_ttm_buddy_manager *bman = to_buddy_manager(man);
- struct drm_buddy *mm = &bman->mm;
- struct drm_buddy_block *block;
+ struct gpu_buddy *mm = &bman->mm;
+ struct gpu_buddy_block *block;
if (!place->fpfn && !place->lpfn)
return true;
@@ -176,9 +177,9 @@ static bool i915_ttm_buddy_man_intersects(struct ttm_resource_manager *man,
/* Check each drm buddy block individually */
list_for_each_entry(block, &bman_res->blocks, link) {
unsigned long fpfn =
- drm_buddy_block_offset(block) >> PAGE_SHIFT;
+ gpu_buddy_block_offset(block) >> PAGE_SHIFT;
unsigned long lpfn = fpfn +
- (drm_buddy_block_size(mm, block) >> PAGE_SHIFT);
+ (gpu_buddy_block_size(mm, block) >> PAGE_SHIFT);
if (place->fpfn < lpfn && place->lpfn > fpfn)
return true;
@@ -194,8 +195,8 @@ static bool i915_ttm_buddy_man_compatible(struct ttm_resource_manager *man,
{
struct i915_ttm_buddy_resource *bman_res = to_ttm_buddy_resource(res);
struct i915_ttm_buddy_manager *bman = to_buddy_manager(man);
- struct drm_buddy *mm = &bman->mm;
- struct drm_buddy_block *block;
+ struct gpu_buddy *mm = &bman->mm;
+ struct gpu_buddy_block *block;
if (!place->fpfn && !place->lpfn)
return true;
@@ -209,9 +210,9 @@ static bool i915_ttm_buddy_man_compatible(struct ttm_resource_manager *man,
/* Check each drm buddy block individually */
list_for_each_entry(block, &bman_res->blocks, link) {
unsigned long fpfn =
- drm_buddy_block_offset(block) >> PAGE_SHIFT;
+ gpu_buddy_block_offset(block) >> PAGE_SHIFT;
unsigned long lpfn = fpfn +
- (drm_buddy_block_size(mm, block) >> PAGE_SHIFT);
+ (gpu_buddy_block_size(mm, block) >> PAGE_SHIFT);
if (fpfn < place->fpfn || lpfn > place->lpfn)
return false;
@@ -224,7 +225,7 @@ static void i915_ttm_buddy_man_debug(struct ttm_resource_manager *man,
struct drm_printer *printer)
{
struct i915_ttm_buddy_manager *bman = to_buddy_manager(man);
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
mutex_lock(&bman->lock);
drm_printf(printer, "default_page_size: %lluKiB\n",
@@ -293,7 +294,7 @@ int i915_ttm_buddy_man_init(struct ttm_device *bdev,
if (!bman)
return -ENOMEM;
- err = drm_buddy_init(&bman->mm, size, chunk_size);
+ err = gpu_buddy_init(&bman->mm, size, chunk_size);
if (err)
goto err_free_bman;
@@ -333,7 +334,7 @@ int i915_ttm_buddy_man_fini(struct ttm_device *bdev, unsigned int type)
{
struct ttm_resource_manager *man = ttm_manager_type(bdev, type);
struct i915_ttm_buddy_manager *bman = to_buddy_manager(man);
- struct drm_buddy *mm = &bman->mm;
+ struct gpu_buddy *mm = &bman->mm;
int ret;
ttm_resource_manager_set_used(man, false);
@@ -345,8 +346,8 @@ int i915_ttm_buddy_man_fini(struct ttm_device *bdev, unsigned int type)
ttm_set_driver_manager(bdev, type, NULL);
mutex_lock(&bman->lock);
- drm_buddy_free_list(mm, &bman->reserved, 0);
- drm_buddy_fini(mm);
+ gpu_buddy_free_list(mm, &bman->reserved, 0);
+ gpu_buddy_fini(mm);
bman->visible_avail += bman->visible_reserved;
WARN_ON_ONCE(bman->visible_avail != bman->visible_size);
mutex_unlock(&bman->lock);
@@ -371,15 +372,15 @@ int i915_ttm_buddy_man_reserve(struct ttm_resource_manager *man,
u64 start, u64 size)
{
struct i915_ttm_buddy_manager *bman = to_buddy_manager(man);
- struct drm_buddy *mm = &bman->mm;
+ struct gpu_buddy *mm = &bman->mm;
unsigned long fpfn = start >> PAGE_SHIFT;
unsigned long flags = 0;
int ret;
- flags |= DRM_BUDDY_RANGE_ALLOCATION;
+ flags |= GPU_BUDDY_RANGE_ALLOCATION;
mutex_lock(&bman->lock);
- ret = drm_buddy_alloc_blocks(mm, start,
+ ret = gpu_buddy_alloc_blocks(mm, start,
start + size,
size, mm->chunk_size,
&bman->reserved,
diff --git a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.h b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.h
index d64620712830..1cff018c1689 100644
--- a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.h
+++ b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.h
@@ -13,7 +13,7 @@
struct ttm_device;
struct ttm_resource_manager;
-struct drm_buddy;
+struct gpu_buddy;
/**
* struct i915_ttm_buddy_resource
@@ -33,7 +33,7 @@ struct i915_ttm_buddy_resource {
struct list_head blocks;
unsigned long flags;
unsigned long used_visible_size;
- struct drm_buddy *mm;
+ struct gpu_buddy *mm;
};
/**
diff --git a/drivers/gpu/drm/i915/selftests/intel_memory_region.c b/drivers/gpu/drm/i915/selftests/intel_memory_region.c
index 7b856b5090f9..8307390943a2 100644
--- a/drivers/gpu/drm/i915/selftests/intel_memory_region.c
+++ b/drivers/gpu/drm/i915/selftests/intel_memory_region.c
@@ -6,7 +6,7 @@
#include <linux/prime_numbers.h>
#include <linux/sort.h>
-#include <drm/drm_buddy.h>
+#include <linux/gpu_buddy.h>
#include "../i915_selftest.h"
@@ -371,7 +371,7 @@ static int igt_mock_splintered_region(void *arg)
struct drm_i915_private *i915 = mem->i915;
struct i915_ttm_buddy_resource *res;
struct drm_i915_gem_object *obj;
- struct drm_buddy *mm;
+ struct gpu_buddy *mm;
unsigned int expected_order;
LIST_HEAD(objects);
u64 size;
@@ -447,8 +447,8 @@ static int igt_mock_max_segment(void *arg)
struct drm_i915_private *i915 = mem->i915;
struct i915_ttm_buddy_resource *res;
struct drm_i915_gem_object *obj;
- struct drm_buddy_block *block;
- struct drm_buddy *mm;
+ struct gpu_buddy_block *block;
+ struct gpu_buddy *mm;
struct list_head *blocks;
struct scatterlist *sg;
I915_RND_STATE(prng);
@@ -487,8 +487,8 @@ static int igt_mock_max_segment(void *arg)
mm = res->mm;
size = 0;
list_for_each_entry(block, blocks, link) {
- if (drm_buddy_block_size(mm, block) > size)
- size = drm_buddy_block_size(mm, block);
+ if (gpu_buddy_block_size(mm, block) > size)
+ size = gpu_buddy_block_size(mm, block);
}
if (size < max_segment) {
pr_err("%s: Failed to create a huge contiguous block [> %u], largest block %lld\n",
@@ -527,14 +527,14 @@ static u64 igt_object_mappable_total(struct drm_i915_gem_object *obj)
struct intel_memory_region *mr = obj->mm.region;
struct i915_ttm_buddy_resource *bman_res =
to_ttm_buddy_resource(obj->mm.res);
- struct drm_buddy *mm = bman_res->mm;
- struct drm_buddy_block *block;
+ struct gpu_buddy *mm = bman_res->mm;
+ struct gpu_buddy_block *block;
u64 total;
total = 0;
list_for_each_entry(block, &bman_res->blocks, link) {
- u64 start = drm_buddy_block_offset(block);
- u64 end = start + drm_buddy_block_size(mm, block);
+ u64 start = gpu_buddy_block_offset(block);
+ u64 end = start + gpu_buddy_block_size(mm, block);
if (start < resource_size(&mr->io))
total += min_t(u64, end, resource_size(&mr->io)) - start;
diff --git a/drivers/gpu/drm/ttm/tests/ttm_bo_validate_test.c b/drivers/gpu/drm/ttm/tests/ttm_bo_validate_test.c
index 6d95447a989d..e32f3c8d7b84 100644
--- a/drivers/gpu/drm/ttm/tests/ttm_bo_validate_test.c
+++ b/drivers/gpu/drm/ttm/tests/ttm_bo_validate_test.c
@@ -251,7 +251,7 @@ static void ttm_bo_validate_basic(struct kunit *test)
NULL, &dummy_ttm_bo_destroy);
KUNIT_EXPECT_EQ(test, err, 0);
- snd_place = ttm_place_kunit_init(test, snd_mem, DRM_BUDDY_TOPDOWN_ALLOCATION);
+ snd_place = ttm_place_kunit_init(test, snd_mem, GPU_BUDDY_TOPDOWN_ALLOCATION);
snd_placement = ttm_placement_kunit_init(test, snd_place, 1);
err = ttm_bo_validate(bo, snd_placement, &ctx_val);
@@ -263,7 +263,7 @@ static void ttm_bo_validate_basic(struct kunit *test)
KUNIT_EXPECT_TRUE(test, ttm_tt_is_populated(bo->ttm));
KUNIT_EXPECT_EQ(test, bo->resource->mem_type, snd_mem);
KUNIT_EXPECT_EQ(test, bo->resource->placement,
- DRM_BUDDY_TOPDOWN_ALLOCATION);
+ GPU_BUDDY_TOPDOWN_ALLOCATION);
ttm_bo_fini(bo);
ttm_mock_manager_fini(priv->ttm_dev, snd_mem);
diff --git a/drivers/gpu/drm/ttm/tests/ttm_mock_manager.c b/drivers/gpu/drm/ttm/tests/ttm_mock_manager.c
index dd395229e388..294d56d9067e 100644
--- a/drivers/gpu/drm/ttm/tests/ttm_mock_manager.c
+++ b/drivers/gpu/drm/ttm/tests/ttm_mock_manager.c
@@ -31,7 +31,7 @@ static int ttm_mock_manager_alloc(struct ttm_resource_manager *man,
{
struct ttm_mock_manager *manager = to_mock_mgr(man);
struct ttm_mock_resource *mock_res;
- struct drm_buddy *mm = &manager->mm;
+ struct gpu_buddy *mm = &manager->mm;
u64 lpfn, fpfn, alloc_size;
int err;
@@ -47,14 +47,14 @@ static int ttm_mock_manager_alloc(struct ttm_resource_manager *man,
INIT_LIST_HEAD(&mock_res->blocks);
if (place->flags & TTM_PL_FLAG_TOPDOWN)
- mock_res->flags |= DRM_BUDDY_TOPDOWN_ALLOCATION;
+ mock_res->flags |= GPU_BUDDY_TOPDOWN_ALLOCATION;
if (place->flags & TTM_PL_FLAG_CONTIGUOUS)
- mock_res->flags |= DRM_BUDDY_CONTIGUOUS_ALLOCATION;
+ mock_res->flags |= GPU_BUDDY_CONTIGUOUS_ALLOCATION;
alloc_size = (uint64_t)mock_res->base.size;
mutex_lock(&manager->lock);
- err = drm_buddy_alloc_blocks(mm, fpfn, lpfn, alloc_size,
+ err = gpu_buddy_alloc_blocks(mm, fpfn, lpfn, alloc_size,
manager->default_page_size,
&mock_res->blocks,
mock_res->flags);
@@ -67,7 +67,7 @@ static int ttm_mock_manager_alloc(struct ttm_resource_manager *man,
return 0;
error_free_blocks:
- drm_buddy_free_list(mm, &mock_res->blocks, 0);
+ gpu_buddy_free_list(mm, &mock_res->blocks, 0);
ttm_resource_fini(man, &mock_res->base);
mutex_unlock(&manager->lock);
@@ -79,10 +79,10 @@ static void ttm_mock_manager_free(struct ttm_resource_manager *man,
{
struct ttm_mock_manager *manager = to_mock_mgr(man);
struct ttm_mock_resource *mock_res = to_mock_mgr_resource(res);
- struct drm_buddy *mm = &manager->mm;
+ struct gpu_buddy *mm = &manager->mm;
mutex_lock(&manager->lock);
- drm_buddy_free_list(mm, &mock_res->blocks, 0);
+ gpu_buddy_free_list(mm, &mock_res->blocks, 0);
mutex_unlock(&manager->lock);
ttm_resource_fini(man, res);
@@ -106,7 +106,7 @@ int ttm_mock_manager_init(struct ttm_device *bdev, u32 mem_type, u32 size)
mutex_init(&manager->lock);
- err = drm_buddy_init(&manager->mm, size, PAGE_SIZE);
+ err = gpu_buddy_init(&manager->mm, size, PAGE_SIZE);
if (err) {
kfree(manager);
@@ -142,7 +142,7 @@ void ttm_mock_manager_fini(struct ttm_device *bdev, u32 mem_type)
ttm_resource_manager_set_used(man, false);
mutex_lock(&mock_man->lock);
- drm_buddy_fini(&mock_man->mm);
+ gpu_buddy_fini(&mock_man->mm);
mutex_unlock(&mock_man->lock);
ttm_set_driver_manager(bdev, mem_type, NULL);
diff --git a/drivers/gpu/drm/ttm/tests/ttm_mock_manager.h b/drivers/gpu/drm/ttm/tests/ttm_mock_manager.h
index 96ea8c9aae34..08710756fd8e 100644
--- a/drivers/gpu/drm/ttm/tests/ttm_mock_manager.h
+++ b/drivers/gpu/drm/ttm/tests/ttm_mock_manager.h
@@ -9,7 +9,7 @@
struct ttm_mock_manager {
struct ttm_resource_manager man;
- struct drm_buddy mm;
+ struct gpu_buddy mm;
u64 default_page_size;
/* protects allocations of mock buffer objects */
struct mutex lock;
diff --git a/drivers/gpu/drm/xe/xe_res_cursor.h b/drivers/gpu/drm/xe/xe_res_cursor.h
index 4e00008b7081..5f4ab08c0686 100644
--- a/drivers/gpu/drm/xe/xe_res_cursor.h
+++ b/drivers/gpu/drm/xe/xe_res_cursor.h
@@ -58,7 +58,7 @@ struct xe_res_cursor {
/** @dma_addr: Current element in a struct drm_pagemap_addr array */
const struct drm_pagemap_addr *dma_addr;
/** @mm: Buddy allocator for VRAM cursor */
- struct drm_buddy *mm;
+ struct gpu_buddy *mm;
/**
* @dma_start: DMA start address for the current segment.
* This may be different to @dma_addr.addr since elements in
@@ -69,7 +69,7 @@ struct xe_res_cursor {
u64 dma_seg_size;
};
-static struct drm_buddy *xe_res_get_buddy(struct ttm_resource *res)
+static struct gpu_buddy *xe_res_get_buddy(struct ttm_resource *res)
{
struct ttm_resource_manager *mgr;
@@ -104,30 +104,30 @@ static inline void xe_res_first(struct ttm_resource *res,
case XE_PL_STOLEN:
case XE_PL_VRAM0:
case XE_PL_VRAM1: {
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
struct list_head *head, *next;
- struct drm_buddy *mm = xe_res_get_buddy(res);
+ struct gpu_buddy *mm = xe_res_get_buddy(res);
head = &to_xe_ttm_vram_mgr_resource(res)->blocks;
block = list_first_entry_or_null(head,
- struct drm_buddy_block,
+ struct gpu_buddy_block,
link);
if (!block)
goto fallback;
- while (start >= drm_buddy_block_size(mm, block)) {
- start -= drm_buddy_block_size(mm, block);
+ while (start >= gpu_buddy_block_size(mm, block)) {
+ start -= gpu_buddy_block_size(mm, block);
next = block->link.next;
if (next != head)
- block = list_entry(next, struct drm_buddy_block,
+ block = list_entry(next, struct gpu_buddy_block,
link);
}
cur->mm = mm;
- cur->start = drm_buddy_block_offset(block) + start;
- cur->size = min(drm_buddy_block_size(mm, block) - start,
+ cur->start = gpu_buddy_block_offset(block) + start;
+ cur->size = min(gpu_buddy_block_size(mm, block) - start,
size);
cur->remaining = size;
cur->node = block;
@@ -259,7 +259,7 @@ static inline void xe_res_first_dma(const struct drm_pagemap_addr *dma_addr,
*/
static inline void xe_res_next(struct xe_res_cursor *cur, u64 size)
{
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
struct list_head *next;
u64 start;
@@ -295,18 +295,18 @@ static inline void xe_res_next(struct xe_res_cursor *cur, u64 size)
block = cur->node;
next = block->link.next;
- block = list_entry(next, struct drm_buddy_block, link);
+ block = list_entry(next, struct gpu_buddy_block, link);
- while (start >= drm_buddy_block_size(cur->mm, block)) {
- start -= drm_buddy_block_size(cur->mm, block);
+ while (start >= gpu_buddy_block_size(cur->mm, block)) {
+ start -= gpu_buddy_block_size(cur->mm, block);
next = block->link.next;
- block = list_entry(next, struct drm_buddy_block, link);
+ block = list_entry(next, struct gpu_buddy_block, link);
}
- cur->start = drm_buddy_block_offset(block) + start;
- cur->size = min(drm_buddy_block_size(cur->mm, block) - start,
+ cur->start = gpu_buddy_block_offset(block) + start;
+ cur->size = min(gpu_buddy_block_size(cur->mm, block) - start,
cur->remaining);
cur->node = block;
break;
diff --git a/drivers/gpu/drm/xe/xe_svm.c b/drivers/gpu/drm/xe/xe_svm.c
index 213f0334518a..cda3bf7e2418 100644
--- a/drivers/gpu/drm/xe/xe_svm.c
+++ b/drivers/gpu/drm/xe/xe_svm.c
@@ -747,7 +747,7 @@ static u64 block_offset_to_pfn(struct drm_pagemap *dpagemap, u64 offset)
return PHYS_PFN(offset + xpagemap->hpa_base);
}
-static struct drm_buddy *vram_to_buddy(struct xe_vram_region *vram)
+static struct gpu_buddy *vram_to_buddy(struct xe_vram_region *vram)
{
return &vram->ttm.mm;
}
@@ -758,17 +758,17 @@ static int xe_svm_populate_devmem_pfn(struct drm_pagemap_devmem *devmem_allocati
struct xe_bo *bo = to_xe_bo(devmem_allocation);
struct ttm_resource *res = bo->ttm.resource;
struct list_head *blocks = &to_xe_ttm_vram_mgr_resource(res)->blocks;
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
int j = 0;
list_for_each_entry(block, blocks, link) {
struct xe_vram_region *vr = block->private;
- struct drm_buddy *buddy = vram_to_buddy(vr);
+ struct gpu_buddy *buddy = vram_to_buddy(vr);
u64 block_pfn = block_offset_to_pfn(devmem_allocation->dpagemap,
- drm_buddy_block_offset(block));
+ gpu_buddy_block_offset(block));
int i;
- for (i = 0; i < drm_buddy_block_size(buddy, block) >> PAGE_SHIFT; ++i)
+ for (i = 0; i < gpu_buddy_block_size(buddy, block) >> PAGE_SHIFT; ++i)
pfn[j++] = block_pfn + i;
}
@@ -1033,7 +1033,7 @@ static int xe_drm_pagemap_populate_mm(struct drm_pagemap *dpagemap,
struct dma_fence *pre_migrate_fence = NULL;
struct xe_device *xe = vr->xe;
struct device *dev = xe->drm.dev;
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
struct xe_validation_ctx vctx;
struct list_head *blocks;
struct drm_exec exec;
diff --git a/drivers/gpu/drm/xe/xe_ttm_vram_mgr.c b/drivers/gpu/drm/xe/xe_ttm_vram_mgr.c
index 6553a19f7cf2..d119217d566a 100644
--- a/drivers/gpu/drm/xe/xe_ttm_vram_mgr.c
+++ b/drivers/gpu/drm/xe/xe_ttm_vram_mgr.c
@@ -6,6 +6,7 @@
#include <drm/drm_managed.h>
#include <drm/drm_drv.h>
+#include <drm/drm_buddy.h>
#include <drm/ttm/ttm_placement.h>
#include <drm/ttm/ttm_range_manager.h>
@@ -16,16 +17,16 @@
#include "xe_ttm_vram_mgr.h"
#include "xe_vram_types.h"
-static inline struct drm_buddy_block *
+static inline struct gpu_buddy_block *
xe_ttm_vram_mgr_first_block(struct list_head *list)
{
- return list_first_entry_or_null(list, struct drm_buddy_block, link);
+ return list_first_entry_or_null(list, struct gpu_buddy_block, link);
}
-static inline bool xe_is_vram_mgr_blocks_contiguous(struct drm_buddy *mm,
+static inline bool xe_is_vram_mgr_blocks_contiguous(struct gpu_buddy *mm,
struct list_head *head)
{
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
u64 start, size;
block = xe_ttm_vram_mgr_first_block(head);
@@ -33,12 +34,12 @@ static inline bool xe_is_vram_mgr_blocks_contiguous(struct drm_buddy *mm,
return false;
while (head != block->link.next) {
- start = drm_buddy_block_offset(block);
- size = drm_buddy_block_size(mm, block);
+ start = gpu_buddy_block_offset(block);
+ size = gpu_buddy_block_size(mm, block);
- block = list_entry(block->link.next, struct drm_buddy_block,
+ block = list_entry(block->link.next, struct gpu_buddy_block,
link);
- if (start + size != drm_buddy_block_offset(block))
+ if (start + size != gpu_buddy_block_offset(block))
return false;
}
@@ -52,7 +53,7 @@ static int xe_ttm_vram_mgr_new(struct ttm_resource_manager *man,
{
struct xe_ttm_vram_mgr *mgr = to_xe_ttm_vram_mgr(man);
struct xe_ttm_vram_mgr_resource *vres;
- struct drm_buddy *mm = &mgr->mm;
+ struct gpu_buddy *mm = &mgr->mm;
u64 size, min_page_size;
unsigned long lpfn;
int err;
@@ -79,10 +80,10 @@ static int xe_ttm_vram_mgr_new(struct ttm_resource_manager *man,
INIT_LIST_HEAD(&vres->blocks);
if (place->flags & TTM_PL_FLAG_TOPDOWN)
- vres->flags |= DRM_BUDDY_TOPDOWN_ALLOCATION;
+ vres->flags |= GPU_BUDDY_TOPDOWN_ALLOCATION;
if (place->fpfn || lpfn != man->size >> PAGE_SHIFT)
- vres->flags |= DRM_BUDDY_RANGE_ALLOCATION;
+ vres->flags |= GPU_BUDDY_RANGE_ALLOCATION;
if (WARN_ON(!vres->base.size)) {
err = -EINVAL;
@@ -118,27 +119,27 @@ static int xe_ttm_vram_mgr_new(struct ttm_resource_manager *man,
lpfn = max_t(unsigned long, place->fpfn + (size >> PAGE_SHIFT), lpfn);
}
- err = drm_buddy_alloc_blocks(mm, (u64)place->fpfn << PAGE_SHIFT,
+ err = gpu_buddy_alloc_blocks(mm, (u64)place->fpfn << PAGE_SHIFT,
(u64)lpfn << PAGE_SHIFT, size,
min_page_size, &vres->blocks, vres->flags);
if (err)
goto error_unlock;
if (place->flags & TTM_PL_FLAG_CONTIGUOUS) {
- if (!drm_buddy_block_trim(mm, NULL, vres->base.size, &vres->blocks))
+ if (!gpu_buddy_block_trim(mm, NULL, vres->base.size, &vres->blocks))
size = vres->base.size;
}
if (lpfn <= mgr->visible_size >> PAGE_SHIFT) {
vres->used_visible_size = size;
} else {
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
list_for_each_entry(block, &vres->blocks, link) {
- u64 start = drm_buddy_block_offset(block);
+ u64 start = gpu_buddy_block_offset(block);
if (start < mgr->visible_size) {
- u64 end = start + drm_buddy_block_size(mm, block);
+ u64 end = start + gpu_buddy_block_size(mm, block);
vres->used_visible_size +=
min(end, mgr->visible_size) - start;
@@ -158,11 +159,11 @@ static int xe_ttm_vram_mgr_new(struct ttm_resource_manager *man,
* the object.
*/
if (vres->base.placement & TTM_PL_FLAG_CONTIGUOUS) {
- struct drm_buddy_block *block = list_first_entry(&vres->blocks,
+ struct gpu_buddy_block *block = list_first_entry(&vres->blocks,
typeof(*block),
link);
- vres->base.start = drm_buddy_block_offset(block) >> PAGE_SHIFT;
+ vres->base.start = gpu_buddy_block_offset(block) >> PAGE_SHIFT;
} else {
vres->base.start = XE_BO_INVALID_OFFSET;
}
@@ -184,10 +185,10 @@ static void xe_ttm_vram_mgr_del(struct ttm_resource_manager *man,
struct xe_ttm_vram_mgr_resource *vres =
to_xe_ttm_vram_mgr_resource(res);
struct xe_ttm_vram_mgr *mgr = to_xe_ttm_vram_mgr(man);
- struct drm_buddy *mm = &mgr->mm;
+ struct gpu_buddy *mm = &mgr->mm;
mutex_lock(&mgr->lock);
- drm_buddy_free_list(mm, &vres->blocks, 0);
+ gpu_buddy_free_list(mm, &vres->blocks, 0);
mgr->visible_avail += vres->used_visible_size;
mutex_unlock(&mgr->lock);
@@ -200,7 +201,7 @@ static void xe_ttm_vram_mgr_debug(struct ttm_resource_manager *man,
struct drm_printer *printer)
{
struct xe_ttm_vram_mgr *mgr = to_xe_ttm_vram_mgr(man);
- struct drm_buddy *mm = &mgr->mm;
+ struct gpu_buddy *mm = &mgr->mm;
mutex_lock(&mgr->lock);
drm_printf(printer, "default_page_size: %lluKiB\n",
@@ -223,8 +224,8 @@ static bool xe_ttm_vram_mgr_intersects(struct ttm_resource_manager *man,
struct xe_ttm_vram_mgr *mgr = to_xe_ttm_vram_mgr(man);
struct xe_ttm_vram_mgr_resource *vres =
to_xe_ttm_vram_mgr_resource(res);
- struct drm_buddy *mm = &mgr->mm;
- struct drm_buddy_block *block;
+ struct gpu_buddy *mm = &mgr->mm;
+ struct gpu_buddy_block *block;
if (!place->fpfn && !place->lpfn)
return true;
@@ -234,9 +235,9 @@ static bool xe_ttm_vram_mgr_intersects(struct ttm_resource_manager *man,
list_for_each_entry(block, &vres->blocks, link) {
unsigned long fpfn =
- drm_buddy_block_offset(block) >> PAGE_SHIFT;
+ gpu_buddy_block_offset(block) >> PAGE_SHIFT;
unsigned long lpfn = fpfn +
- (drm_buddy_block_size(mm, block) >> PAGE_SHIFT);
+ (gpu_buddy_block_size(mm, block) >> PAGE_SHIFT);
if (place->fpfn < lpfn && place->lpfn > fpfn)
return true;
@@ -253,8 +254,8 @@ static bool xe_ttm_vram_mgr_compatible(struct ttm_resource_manager *man,
struct xe_ttm_vram_mgr *mgr = to_xe_ttm_vram_mgr(man);
struct xe_ttm_vram_mgr_resource *vres =
to_xe_ttm_vram_mgr_resource(res);
- struct drm_buddy *mm = &mgr->mm;
- struct drm_buddy_block *block;
+ struct gpu_buddy *mm = &mgr->mm;
+ struct gpu_buddy_block *block;
if (!place->fpfn && !place->lpfn)
return true;
@@ -264,9 +265,9 @@ static bool xe_ttm_vram_mgr_compatible(struct ttm_resource_manager *man,
list_for_each_entry(block, &vres->blocks, link) {
unsigned long fpfn =
- drm_buddy_block_offset(block) >> PAGE_SHIFT;
+ gpu_buddy_block_offset(block) >> PAGE_SHIFT;
unsigned long lpfn = fpfn +
- (drm_buddy_block_size(mm, block) >> PAGE_SHIFT);
+ (gpu_buddy_block_size(mm, block) >> PAGE_SHIFT);
if (fpfn < place->fpfn || lpfn > place->lpfn)
return false;
@@ -296,7 +297,7 @@ static void xe_ttm_vram_mgr_fini(struct drm_device *dev, void *arg)
WARN_ON_ONCE(mgr->visible_avail != mgr->visible_size);
- drm_buddy_fini(&mgr->mm);
+ gpu_buddy_fini(&mgr->mm);
ttm_resource_manager_cleanup(&mgr->manager);
@@ -327,7 +328,7 @@ int __xe_ttm_vram_mgr_init(struct xe_device *xe, struct xe_ttm_vram_mgr *mgr,
mgr->visible_avail = io_size;
ttm_resource_manager_init(man, &xe->ttm, size);
- err = drm_buddy_init(&mgr->mm, man->size, default_page_size);
+ err = gpu_buddy_init(&mgr->mm, man->size, default_page_size);
if (err)
return err;
@@ -375,7 +376,7 @@ int xe_ttm_vram_mgr_alloc_sgt(struct xe_device *xe,
if (!*sgt)
return -ENOMEM;
- /* Determine the number of DRM_BUDDY blocks to export */
+ /* Determine the number of GPU_BUDDY blocks to export */
xe_res_first(res, offset, length, &cursor);
while (cursor.remaining) {
num_entries++;
@@ -392,10 +393,10 @@ int xe_ttm_vram_mgr_alloc_sgt(struct xe_device *xe,
sg->length = 0;
/*
- * Walk down DRM_BUDDY blocks to populate scatterlist nodes
- * @note: Use iterator api to get first the DRM_BUDDY block
+ * Walk down GPU_BUDDY blocks to populate scatterlist nodes
+ * @note: Use iterator api to get first the GPU_BUDDY block
* and the number of bytes from it. Access the following
- * DRM_BUDDY block(s) if more buffer needs to exported
+ * GPU_BUDDY block(s) if more buffer needs to exported
*/
xe_res_first(res, offset, length, &cursor);
for_each_sgtable_sg((*sgt), sg, i) {
diff --git a/drivers/gpu/drm/xe/xe_ttm_vram_mgr_types.h b/drivers/gpu/drm/xe/xe_ttm_vram_mgr_types.h
index babeec5511d9..9106da056b49 100644
--- a/drivers/gpu/drm/xe/xe_ttm_vram_mgr_types.h
+++ b/drivers/gpu/drm/xe/xe_ttm_vram_mgr_types.h
@@ -18,7 +18,7 @@ struct xe_ttm_vram_mgr {
/** @manager: Base TTM resource manager */
struct ttm_resource_manager manager;
/** @mm: DRM buddy allocator which manages the VRAM */
- struct drm_buddy mm;
+ struct gpu_buddy mm;
/** @visible_size: Proped size of the CPU visible portion */
u64 visible_size;
/** @visible_avail: CPU visible portion still unallocated */
diff --git a/drivers/gpu/tests/Makefile b/drivers/gpu/tests/Makefile
index 8e7654e87d82..4183e6e2de45 100644
--- a/drivers/gpu/tests/Makefile
+++ b/drivers/gpu/tests/Makefile
@@ -1,4 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
gpu_buddy_tests-y = gpu_buddy_test.o gpu_random.o
-obj-$(CONFIG_DRM_KUNIT_TEST) += gpu_buddy_tests.o
+obj-$(CONFIG_GPU_BUDDY_KUNIT_TEST) += gpu_buddy_tests.o
diff --git a/drivers/gpu/tests/gpu_buddy_test.c b/drivers/gpu/tests/gpu_buddy_test.c
index b905932da990..450e71deed90 100644
--- a/drivers/gpu/tests/gpu_buddy_test.c
+++ b/drivers/gpu/tests/gpu_buddy_test.c
@@ -21,9 +21,9 @@ static inline u64 get_size(int order, u64 chunk_size)
return (1 << order) * chunk_size;
}
-static void drm_test_buddy_fragmentation_performance(struct kunit *test)
+static void gpu_test_buddy_fragmentation_performance(struct kunit *test)
{
- struct drm_buddy_block *block, *tmp;
+ struct gpu_buddy_block *block, *tmp;
int num_blocks, i, ret, count = 0;
LIST_HEAD(allocated_blocks);
unsigned long elapsed_ms;
@@ -32,7 +32,7 @@ static void drm_test_buddy_fragmentation_performance(struct kunit *test)
LIST_HEAD(clear_list);
LIST_HEAD(dirty_list);
LIST_HEAD(free_list);
- struct drm_buddy mm;
+ struct gpu_buddy mm;
u64 mm_size = SZ_4G;
ktime_t start, end;
@@ -47,7 +47,7 @@ static void drm_test_buddy_fragmentation_performance(struct kunit *test)
* quickly the allocator can satisfy larger, aligned requests from a pool of
* highly fragmented space.
*/
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, SZ_4K),
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_init(&mm, mm_size, SZ_4K),
"buddy_init failed\n");
num_blocks = mm_size / SZ_64K;
@@ -55,7 +55,7 @@ static void drm_test_buddy_fragmentation_performance(struct kunit *test)
start = ktime_get();
/* Allocate with maximum fragmentation - 8K blocks with 64K alignment */
for (i = 0; i < num_blocks; i++)
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size, SZ_8K, SZ_64K,
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_alloc_blocks(&mm, 0, mm_size, SZ_8K, SZ_64K,
&allocated_blocks, 0),
"buddy_alloc hit an error size=%u\n", SZ_8K);
@@ -68,21 +68,21 @@ static void drm_test_buddy_fragmentation_performance(struct kunit *test)
}
/* Free with different flags to ensure no coalescing */
- drm_buddy_free_list(&mm, &clear_list, DRM_BUDDY_CLEARED);
- drm_buddy_free_list(&mm, &dirty_list, 0);
+ gpu_buddy_free_list(&mm, &clear_list, GPU_BUDDY_CLEARED);
+ gpu_buddy_free_list(&mm, &dirty_list, 0);
for (i = 0; i < num_blocks; i++)
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size, SZ_64K, SZ_64K,
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_alloc_blocks(&mm, 0, mm_size, SZ_64K, SZ_64K,
&test_blocks, 0),
"buddy_alloc hit an error size=%u\n", SZ_64K);
- drm_buddy_free_list(&mm, &test_blocks, 0);
+ gpu_buddy_free_list(&mm, &test_blocks, 0);
end = ktime_get();
elapsed_ms = ktime_to_ms(ktime_sub(end, start));
kunit_info(test, "Fragmented allocation took %lu ms\n", elapsed_ms);
- drm_buddy_fini(&mm);
+ gpu_buddy_fini(&mm);
/*
* Reverse free order under fragmentation
@@ -96,13 +96,13 @@ static void drm_test_buddy_fragmentation_performance(struct kunit *test)
* deallocation occurs in the opposite order of allocation, exposing the
* cost difference between a linear freelist scan and an ordered tree lookup.
*/
- ret = drm_buddy_init(&mm, mm_size, SZ_4K);
+ ret = gpu_buddy_init(&mm, mm_size, SZ_4K);
KUNIT_ASSERT_EQ(test, ret, 0);
start = ktime_get();
/* Allocate maximum fragmentation */
for (i = 0; i < num_blocks; i++)
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size, SZ_8K, SZ_64K,
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_alloc_blocks(&mm, 0, mm_size, SZ_8K, SZ_64K,
&allocated_blocks, 0),
"buddy_alloc hit an error size=%u\n", SZ_8K);
@@ -111,28 +111,28 @@ static void drm_test_buddy_fragmentation_performance(struct kunit *test)
list_move_tail(&block->link, &free_list);
count++;
}
- drm_buddy_free_list(&mm, &free_list, DRM_BUDDY_CLEARED);
+ gpu_buddy_free_list(&mm, &free_list, GPU_BUDDY_CLEARED);
list_for_each_entry_safe_reverse(block, tmp, &allocated_blocks, link)
list_move(&block->link, &reverse_list);
- drm_buddy_free_list(&mm, &reverse_list, DRM_BUDDY_CLEARED);
+ gpu_buddy_free_list(&mm, &reverse_list, GPU_BUDDY_CLEARED);
end = ktime_get();
elapsed_ms = ktime_to_ms(ktime_sub(end, start));
kunit_info(test, "Reverse-ordered free took %lu ms\n", elapsed_ms);
- drm_buddy_fini(&mm);
+ gpu_buddy_fini(&mm);
}
-static void drm_test_buddy_alloc_range_bias(struct kunit *test)
+static void gpu_test_buddy_alloc_range_bias(struct kunit *test)
{
u32 mm_size, size, ps, bias_size, bias_start, bias_end, bias_rem;
- DRM_RND_STATE(prng, random_seed);
+ GPU_RND_STATE(prng, random_seed);
unsigned int i, count, *order;
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
unsigned long flags;
- struct drm_buddy mm;
+ struct gpu_buddy mm;
LIST_HEAD(allocated);
bias_size = SZ_1M;
@@ -142,11 +142,11 @@ static void drm_test_buddy_alloc_range_bias(struct kunit *test)
kunit_info(test, "mm_size=%u, ps=%u\n", mm_size, ps);
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, ps),
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_init(&mm, mm_size, ps),
"buddy_init failed\n");
count = mm_size / bias_size;
- order = drm_random_order(count, &prng);
+ order = gpu_random_order(count, &prng);
KUNIT_EXPECT_TRUE(test, order);
/*
@@ -166,79 +166,79 @@ static void drm_test_buddy_alloc_range_bias(struct kunit *test)
/* internal round_up too big */
KUNIT_ASSERT_TRUE_MSG(test,
- drm_buddy_alloc_blocks(&mm, bias_start,
+ gpu_buddy_alloc_blocks(&mm, bias_start,
bias_end, bias_size + ps, bias_size,
&allocated,
- DRM_BUDDY_RANGE_ALLOCATION),
+ GPU_BUDDY_RANGE_ALLOCATION),
"buddy_alloc failed with bias(%x-%x), size=%u, ps=%u\n",
bias_start, bias_end, bias_size, bias_size);
/* size too big */
KUNIT_ASSERT_TRUE_MSG(test,
- drm_buddy_alloc_blocks(&mm, bias_start,
+ gpu_buddy_alloc_blocks(&mm, bias_start,
bias_end, bias_size + ps, ps,
&allocated,
- DRM_BUDDY_RANGE_ALLOCATION),
+ GPU_BUDDY_RANGE_ALLOCATION),
"buddy_alloc didn't fail with bias(%x-%x), size=%u, ps=%u\n",
bias_start, bias_end, bias_size + ps, ps);
/* bias range too small for size */
KUNIT_ASSERT_TRUE_MSG(test,
- drm_buddy_alloc_blocks(&mm, bias_start + ps,
+ gpu_buddy_alloc_blocks(&mm, bias_start + ps,
bias_end, bias_size, ps,
&allocated,
- DRM_BUDDY_RANGE_ALLOCATION),
+ GPU_BUDDY_RANGE_ALLOCATION),
"buddy_alloc didn't fail with bias(%x-%x), size=%u, ps=%u\n",
bias_start + ps, bias_end, bias_size, ps);
/* bias misaligned */
KUNIT_ASSERT_TRUE_MSG(test,
- drm_buddy_alloc_blocks(&mm, bias_start + ps,
+ gpu_buddy_alloc_blocks(&mm, bias_start + ps,
bias_end - ps,
bias_size >> 1, bias_size >> 1,
&allocated,
- DRM_BUDDY_RANGE_ALLOCATION),
+ GPU_BUDDY_RANGE_ALLOCATION),
"buddy_alloc h didn't fail with bias(%x-%x), size=%u, ps=%u\n",
bias_start + ps, bias_end - ps, bias_size >> 1, bias_size >> 1);
/* single big page */
KUNIT_ASSERT_FALSE_MSG(test,
- drm_buddy_alloc_blocks(&mm, bias_start,
+ gpu_buddy_alloc_blocks(&mm, bias_start,
bias_end, bias_size, bias_size,
&tmp,
- DRM_BUDDY_RANGE_ALLOCATION),
+ GPU_BUDDY_RANGE_ALLOCATION),
"buddy_alloc i failed with bias(%x-%x), size=%u, ps=%u\n",
bias_start, bias_end, bias_size, bias_size);
- drm_buddy_free_list(&mm, &tmp, 0);
+ gpu_buddy_free_list(&mm, &tmp, 0);
/* single page with internal round_up */
KUNIT_ASSERT_FALSE_MSG(test,
- drm_buddy_alloc_blocks(&mm, bias_start,
+ gpu_buddy_alloc_blocks(&mm, bias_start,
bias_end, ps, bias_size,
&tmp,
- DRM_BUDDY_RANGE_ALLOCATION),
+ GPU_BUDDY_RANGE_ALLOCATION),
"buddy_alloc failed with bias(%x-%x), size=%u, ps=%u\n",
bias_start, bias_end, ps, bias_size);
- drm_buddy_free_list(&mm, &tmp, 0);
+ gpu_buddy_free_list(&mm, &tmp, 0);
/* random size within */
size = max(round_up(prandom_u32_state(&prng) % bias_rem, ps), ps);
if (size)
KUNIT_ASSERT_FALSE_MSG(test,
- drm_buddy_alloc_blocks(&mm, bias_start,
+ gpu_buddy_alloc_blocks(&mm, bias_start,
bias_end, size, ps,
&tmp,
- DRM_BUDDY_RANGE_ALLOCATION),
+ GPU_BUDDY_RANGE_ALLOCATION),
"buddy_alloc failed with bias(%x-%x), size=%u, ps=%u\n",
bias_start, bias_end, size, ps);
bias_rem -= size;
/* too big for current avail */
KUNIT_ASSERT_TRUE_MSG(test,
- drm_buddy_alloc_blocks(&mm, bias_start,
+ gpu_buddy_alloc_blocks(&mm, bias_start,
bias_end, bias_rem + ps, ps,
&allocated,
- DRM_BUDDY_RANGE_ALLOCATION),
+ GPU_BUDDY_RANGE_ALLOCATION),
"buddy_alloc didn't fail with bias(%x-%x), size=%u, ps=%u\n",
bias_start, bias_end, bias_rem + ps, ps);
@@ -248,10 +248,10 @@ static void drm_test_buddy_alloc_range_bias(struct kunit *test)
size = max(size, ps);
KUNIT_ASSERT_FALSE_MSG(test,
- drm_buddy_alloc_blocks(&mm, bias_start,
+ gpu_buddy_alloc_blocks(&mm, bias_start,
bias_end, size, ps,
&allocated,
- DRM_BUDDY_RANGE_ALLOCATION),
+ GPU_BUDDY_RANGE_ALLOCATION),
"buddy_alloc failed with bias(%x-%x), size=%u, ps=%u\n",
bias_start, bias_end, size, ps);
/*
@@ -259,15 +259,15 @@ static void drm_test_buddy_alloc_range_bias(struct kunit *test)
* unallocated, and ideally not always on the bias
* boundaries.
*/
- drm_buddy_free_list(&mm, &tmp, 0);
+ gpu_buddy_free_list(&mm, &tmp, 0);
} else {
list_splice_tail(&tmp, &allocated);
}
}
kfree(order);
- drm_buddy_free_list(&mm, &allocated, 0);
- drm_buddy_fini(&mm);
+ gpu_buddy_free_list(&mm, &allocated, 0);
+ gpu_buddy_fini(&mm);
/*
* Something more free-form. Idea is to pick a random starting bias
@@ -278,7 +278,7 @@ static void drm_test_buddy_alloc_range_bias(struct kunit *test)
* allocated nodes in the middle of the address space.
*/
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, ps),
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_init(&mm, mm_size, ps),
"buddy_init failed\n");
bias_start = round_up(prandom_u32_state(&prng) % (mm_size - ps), ps);
@@ -290,10 +290,10 @@ static void drm_test_buddy_alloc_range_bias(struct kunit *test)
u32 size = max(round_up(prandom_u32_state(&prng) % bias_rem, ps), ps);
KUNIT_ASSERT_FALSE_MSG(test,
- drm_buddy_alloc_blocks(&mm, bias_start,
+ gpu_buddy_alloc_blocks(&mm, bias_start,
bias_end, size, ps,
&allocated,
- DRM_BUDDY_RANGE_ALLOCATION),
+ GPU_BUDDY_RANGE_ALLOCATION),
"buddy_alloc failed with bias(%x-%x), size=%u, ps=%u\n",
bias_start, bias_end, size, ps);
bias_rem -= size;
@@ -319,24 +319,24 @@ static void drm_test_buddy_alloc_range_bias(struct kunit *test)
KUNIT_ASSERT_EQ(test, bias_start, 0);
KUNIT_ASSERT_EQ(test, bias_end, mm_size);
KUNIT_ASSERT_TRUE_MSG(test,
- drm_buddy_alloc_blocks(&mm, bias_start, bias_end,
+ gpu_buddy_alloc_blocks(&mm, bias_start, bias_end,
ps, ps,
&allocated,
- DRM_BUDDY_RANGE_ALLOCATION),
+ GPU_BUDDY_RANGE_ALLOCATION),
"buddy_alloc passed with bias(%x-%x), size=%u\n",
bias_start, bias_end, ps);
- drm_buddy_free_list(&mm, &allocated, 0);
- drm_buddy_fini(&mm);
+ gpu_buddy_free_list(&mm, &allocated, 0);
+ gpu_buddy_fini(&mm);
/*
- * Allocate cleared blocks in the bias range when the DRM buddy's clear avail is
+ * Allocate cleared blocks in the bias range when the GPU buddy's clear avail is
* zero. This will validate the bias range allocation in scenarios like system boot
* when no cleared blocks are available and exercise the fallback path too. The resulting
* blocks should always be dirty.
*/
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, ps),
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_init(&mm, mm_size, ps),
"buddy_init failed\n");
bias_start = round_up(prandom_u32_state(&prng) % (mm_size - ps), ps);
@@ -344,11 +344,11 @@ static void drm_test_buddy_alloc_range_bias(struct kunit *test)
bias_end = max(bias_end, bias_start + ps);
bias_rem = bias_end - bias_start;
- flags = DRM_BUDDY_CLEAR_ALLOCATION | DRM_BUDDY_RANGE_ALLOCATION;
+ flags = GPU_BUDDY_CLEAR_ALLOCATION | GPU_BUDDY_RANGE_ALLOCATION;
size = max(round_up(prandom_u32_state(&prng) % bias_rem, ps), ps);
KUNIT_ASSERT_FALSE_MSG(test,
- drm_buddy_alloc_blocks(&mm, bias_start,
+ gpu_buddy_alloc_blocks(&mm, bias_start,
bias_end, size, ps,
&allocated,
flags),
@@ -356,27 +356,27 @@ static void drm_test_buddy_alloc_range_bias(struct kunit *test)
bias_start, bias_end, size, ps);
list_for_each_entry(block, &allocated, link)
- KUNIT_EXPECT_EQ(test, drm_buddy_block_is_clear(block), false);
+ KUNIT_EXPECT_EQ(test, gpu_buddy_block_is_clear(block), false);
- drm_buddy_free_list(&mm, &allocated, 0);
- drm_buddy_fini(&mm);
+ gpu_buddy_free_list(&mm, &allocated, 0);
+ gpu_buddy_fini(&mm);
}
-static void drm_test_buddy_alloc_clear(struct kunit *test)
+static void gpu_test_buddy_alloc_clear(struct kunit *test)
{
unsigned long n_pages, total, i = 0;
const unsigned long ps = SZ_4K;
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
const int max_order = 12;
LIST_HEAD(allocated);
- struct drm_buddy mm;
+ struct gpu_buddy mm;
unsigned int order;
u32 mm_size, size;
LIST_HEAD(dirty);
LIST_HEAD(clean);
mm_size = SZ_4K << max_order;
- KUNIT_EXPECT_FALSE(test, drm_buddy_init(&mm, mm_size, ps));
+ KUNIT_EXPECT_FALSE(test, gpu_buddy_init(&mm, mm_size, ps));
KUNIT_EXPECT_EQ(test, mm.max_order, max_order);
@@ -389,11 +389,11 @@ static void drm_test_buddy_alloc_clear(struct kunit *test)
* is indeed all dirty pages and vice versa. Free it all again,
* keeping the dirty/clear status.
*/
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size,
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_alloc_blocks(&mm, 0, mm_size,
5 * ps, ps, &allocated,
- DRM_BUDDY_TOPDOWN_ALLOCATION),
+ GPU_BUDDY_TOPDOWN_ALLOCATION),
"buddy_alloc hit an error size=%lu\n", 5 * ps);
- drm_buddy_free_list(&mm, &allocated, DRM_BUDDY_CLEARED);
+ gpu_buddy_free_list(&mm, &allocated, GPU_BUDDY_CLEARED);
n_pages = 10;
do {
@@ -406,37 +406,37 @@ static void drm_test_buddy_alloc_clear(struct kunit *test)
flags = 0;
} else {
list = &clean;
- flags = DRM_BUDDY_CLEAR_ALLOCATION;
+ flags = GPU_BUDDY_CLEAR_ALLOCATION;
}
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size,
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_alloc_blocks(&mm, 0, mm_size,
ps, ps, list,
flags),
"buddy_alloc hit an error size=%lu\n", ps);
} while (++i < n_pages);
list_for_each_entry(block, &clean, link)
- KUNIT_EXPECT_EQ(test, drm_buddy_block_is_clear(block), true);
+ KUNIT_EXPECT_EQ(test, gpu_buddy_block_is_clear(block), true);
list_for_each_entry(block, &dirty, link)
- KUNIT_EXPECT_EQ(test, drm_buddy_block_is_clear(block), false);
+ KUNIT_EXPECT_EQ(test, gpu_buddy_block_is_clear(block), false);
- drm_buddy_free_list(&mm, &clean, DRM_BUDDY_CLEARED);
+ gpu_buddy_free_list(&mm, &clean, GPU_BUDDY_CLEARED);
/*
* Trying to go over the clear limit for some allocation.
* The allocation should never fail with reasonable page-size.
*/
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size,
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_alloc_blocks(&mm, 0, mm_size,
10 * ps, ps, &clean,
- DRM_BUDDY_CLEAR_ALLOCATION),
+ GPU_BUDDY_CLEAR_ALLOCATION),
"buddy_alloc hit an error size=%lu\n", 10 * ps);
- drm_buddy_free_list(&mm, &clean, DRM_BUDDY_CLEARED);
- drm_buddy_free_list(&mm, &dirty, 0);
- drm_buddy_fini(&mm);
+ gpu_buddy_free_list(&mm, &clean, GPU_BUDDY_CLEARED);
+ gpu_buddy_free_list(&mm, &dirty, 0);
+ gpu_buddy_fini(&mm);
- KUNIT_EXPECT_FALSE(test, drm_buddy_init(&mm, mm_size, ps));
+ KUNIT_EXPECT_FALSE(test, gpu_buddy_init(&mm, mm_size, ps));
/*
* Create a new mm. Intentionally fragment the address space by creating
@@ -458,34 +458,34 @@ static void drm_test_buddy_alloc_clear(struct kunit *test)
else
list = &clean;
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size,
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_alloc_blocks(&mm, 0, mm_size,
ps, ps, list, 0),
"buddy_alloc hit an error size=%lu\n", ps);
} while (++i < n_pages);
- drm_buddy_free_list(&mm, &clean, DRM_BUDDY_CLEARED);
- drm_buddy_free_list(&mm, &dirty, 0);
+ gpu_buddy_free_list(&mm, &clean, GPU_BUDDY_CLEARED);
+ gpu_buddy_free_list(&mm, &dirty, 0);
order = 1;
do {
size = SZ_4K << order;
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size,
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_alloc_blocks(&mm, 0, mm_size,
size, size, &allocated,
- DRM_BUDDY_CLEAR_ALLOCATION),
+ GPU_BUDDY_CLEAR_ALLOCATION),
"buddy_alloc hit an error size=%u\n", size);
total = 0;
list_for_each_entry(block, &allocated, link) {
if (size != mm_size)
- KUNIT_EXPECT_EQ(test, drm_buddy_block_is_clear(block), false);
- total += drm_buddy_block_size(&mm, block);
+ KUNIT_EXPECT_EQ(test, gpu_buddy_block_is_clear(block), false);
+ total += gpu_buddy_block_size(&mm, block);
}
KUNIT_EXPECT_EQ(test, total, size);
- drm_buddy_free_list(&mm, &allocated, 0);
+ gpu_buddy_free_list(&mm, &allocated, 0);
} while (++order <= max_order);
- drm_buddy_fini(&mm);
+ gpu_buddy_fini(&mm);
/*
* Create a new mm with a non power-of-two size. Allocate a random size from each
@@ -494,44 +494,44 @@ static void drm_test_buddy_alloc_clear(struct kunit *test)
*/
mm_size = (SZ_4K << max_order) + (SZ_4K << (max_order - 2));
- KUNIT_EXPECT_FALSE(test, drm_buddy_init(&mm, mm_size, ps));
+ KUNIT_EXPECT_FALSE(test, gpu_buddy_init(&mm, mm_size, ps));
KUNIT_EXPECT_EQ(test, mm.max_order, max_order);
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, SZ_4K << max_order,
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_alloc_blocks(&mm, 0, SZ_4K << max_order,
4 * ps, ps, &allocated,
- DRM_BUDDY_RANGE_ALLOCATION),
+ GPU_BUDDY_RANGE_ALLOCATION),
"buddy_alloc hit an error size=%lu\n", 4 * ps);
- drm_buddy_free_list(&mm, &allocated, DRM_BUDDY_CLEARED);
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, SZ_4K << max_order,
+ gpu_buddy_free_list(&mm, &allocated, GPU_BUDDY_CLEARED);
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_alloc_blocks(&mm, 0, SZ_4K << max_order,
2 * ps, ps, &allocated,
- DRM_BUDDY_CLEAR_ALLOCATION),
+ GPU_BUDDY_CLEAR_ALLOCATION),
"buddy_alloc hit an error size=%lu\n", 2 * ps);
- drm_buddy_free_list(&mm, &allocated, DRM_BUDDY_CLEARED);
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, SZ_4K << max_order, mm_size,
+ gpu_buddy_free_list(&mm, &allocated, GPU_BUDDY_CLEARED);
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_alloc_blocks(&mm, SZ_4K << max_order, mm_size,
ps, ps, &allocated,
- DRM_BUDDY_RANGE_ALLOCATION),
+ GPU_BUDDY_RANGE_ALLOCATION),
"buddy_alloc hit an error size=%lu\n", ps);
- drm_buddy_free_list(&mm, &allocated, DRM_BUDDY_CLEARED);
- drm_buddy_fini(&mm);
+ gpu_buddy_free_list(&mm, &allocated, GPU_BUDDY_CLEARED);
+ gpu_buddy_fini(&mm);
}
-static void drm_test_buddy_alloc_contiguous(struct kunit *test)
+static void gpu_test_buddy_alloc_contiguous(struct kunit *test)
{
const unsigned long ps = SZ_4K, mm_size = 16 * 3 * SZ_4K;
unsigned long i, n_pages, total;
- struct drm_buddy_block *block;
- struct drm_buddy mm;
+ struct gpu_buddy_block *block;
+ struct gpu_buddy mm;
LIST_HEAD(left);
LIST_HEAD(middle);
LIST_HEAD(right);
LIST_HEAD(allocated);
- KUNIT_EXPECT_FALSE(test, drm_buddy_init(&mm, mm_size, ps));
+ KUNIT_EXPECT_FALSE(test, gpu_buddy_init(&mm, mm_size, ps));
/*
* Idea is to fragment the address space by alternating block
* allocations between three different lists; one for left, middle and
* right. We can then free a list to simulate fragmentation. In
- * particular we want to exercise the DRM_BUDDY_CONTIGUOUS_ALLOCATION,
+ * particular we want to exercise the GPU_BUDDY_CONTIGUOUS_ALLOCATION,
* including the try_harder path.
*/
@@ -548,66 +548,66 @@ static void drm_test_buddy_alloc_contiguous(struct kunit *test)
else
list = &right;
KUNIT_ASSERT_FALSE_MSG(test,
- drm_buddy_alloc_blocks(&mm, 0, mm_size,
+ gpu_buddy_alloc_blocks(&mm, 0, mm_size,
ps, ps, list, 0),
"buddy_alloc hit an error size=%lu\n",
ps);
} while (++i < n_pages);
- KUNIT_ASSERT_TRUE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size,
+ KUNIT_ASSERT_TRUE_MSG(test, gpu_buddy_alloc_blocks(&mm, 0, mm_size,
3 * ps, ps, &allocated,
- DRM_BUDDY_CONTIGUOUS_ALLOCATION),
+ GPU_BUDDY_CONTIGUOUS_ALLOCATION),
"buddy_alloc didn't error size=%lu\n", 3 * ps);
- drm_buddy_free_list(&mm, &middle, 0);
- KUNIT_ASSERT_TRUE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size,
+ gpu_buddy_free_list(&mm, &middle, 0);
+ KUNIT_ASSERT_TRUE_MSG(test, gpu_buddy_alloc_blocks(&mm, 0, mm_size,
3 * ps, ps, &allocated,
- DRM_BUDDY_CONTIGUOUS_ALLOCATION),
+ GPU_BUDDY_CONTIGUOUS_ALLOCATION),
"buddy_alloc didn't error size=%lu\n", 3 * ps);
- KUNIT_ASSERT_TRUE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size,
+ KUNIT_ASSERT_TRUE_MSG(test, gpu_buddy_alloc_blocks(&mm, 0, mm_size,
2 * ps, ps, &allocated,
- DRM_BUDDY_CONTIGUOUS_ALLOCATION),
+ GPU_BUDDY_CONTIGUOUS_ALLOCATION),
"buddy_alloc didn't error size=%lu\n", 2 * ps);
- drm_buddy_free_list(&mm, &right, 0);
- KUNIT_ASSERT_TRUE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size,
+ gpu_buddy_free_list(&mm, &right, 0);
+ KUNIT_ASSERT_TRUE_MSG(test, gpu_buddy_alloc_blocks(&mm, 0, mm_size,
3 * ps, ps, &allocated,
- DRM_BUDDY_CONTIGUOUS_ALLOCATION),
+ GPU_BUDDY_CONTIGUOUS_ALLOCATION),
"buddy_alloc didn't error size=%lu\n", 3 * ps);
/*
* At this point we should have enough contiguous space for 2 blocks,
* however they are never buddies (since we freed middle and right) so
* will require the try_harder logic to find them.
*/
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size,
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_alloc_blocks(&mm, 0, mm_size,
2 * ps, ps, &allocated,
- DRM_BUDDY_CONTIGUOUS_ALLOCATION),
+ GPU_BUDDY_CONTIGUOUS_ALLOCATION),
"buddy_alloc hit an error size=%lu\n", 2 * ps);
- drm_buddy_free_list(&mm, &left, 0);
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size,
+ gpu_buddy_free_list(&mm, &left, 0);
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_alloc_blocks(&mm, 0, mm_size,
3 * ps, ps, &allocated,
- DRM_BUDDY_CONTIGUOUS_ALLOCATION),
+ GPU_BUDDY_CONTIGUOUS_ALLOCATION),
"buddy_alloc hit an error size=%lu\n", 3 * ps);
total = 0;
list_for_each_entry(block, &allocated, link)
- total += drm_buddy_block_size(&mm, block);
+ total += gpu_buddy_block_size(&mm, block);
KUNIT_ASSERT_EQ(test, total, ps * 2 + ps * 3);
- drm_buddy_free_list(&mm, &allocated, 0);
- drm_buddy_fini(&mm);
+ gpu_buddy_free_list(&mm, &allocated, 0);
+ gpu_buddy_fini(&mm);
}
-static void drm_test_buddy_alloc_pathological(struct kunit *test)
+static void gpu_test_buddy_alloc_pathological(struct kunit *test)
{
u64 mm_size, size, start = 0;
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
const int max_order = 3;
unsigned long flags = 0;
int order, top;
- struct drm_buddy mm;
+ struct gpu_buddy mm;
LIST_HEAD(blocks);
LIST_HEAD(holes);
LIST_HEAD(tmp);
@@ -620,7 +620,7 @@ static void drm_test_buddy_alloc_pathological(struct kunit *test)
*/
mm_size = SZ_4K << max_order;
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, SZ_4K),
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_init(&mm, mm_size, SZ_4K),
"buddy_init failed\n");
KUNIT_EXPECT_EQ(test, mm.max_order, max_order);
@@ -630,18 +630,18 @@ static void drm_test_buddy_alloc_pathological(struct kunit *test)
block = list_first_entry_or_null(&blocks, typeof(*block), link);
if (block) {
list_del(&block->link);
- drm_buddy_free_block(&mm, block);
+ gpu_buddy_free_block(&mm, block);
}
for (order = top; order--;) {
size = get_size(order, mm.chunk_size);
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, start,
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_alloc_blocks(&mm, start,
mm_size, size, size,
&tmp, flags),
"buddy_alloc hit -ENOMEM with order=%d, top=%d\n",
order, top);
- block = list_first_entry_or_null(&tmp, struct drm_buddy_block, link);
+ block = list_first_entry_or_null(&tmp, struct gpu_buddy_block, link);
KUNIT_ASSERT_TRUE_MSG(test, block, "alloc_blocks has no blocks\n");
list_move_tail(&block->link, &blocks);
@@ -649,45 +649,45 @@ static void drm_test_buddy_alloc_pathological(struct kunit *test)
/* There should be one final page for this sub-allocation */
size = get_size(0, mm.chunk_size);
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size,
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_alloc_blocks(&mm, start, mm_size,
size, size, &tmp, flags),
"buddy_alloc hit -ENOMEM for hole\n");
- block = list_first_entry_or_null(&tmp, struct drm_buddy_block, link);
+ block = list_first_entry_or_null(&tmp, struct gpu_buddy_block, link);
KUNIT_ASSERT_TRUE_MSG(test, block, "alloc_blocks has no blocks\n");
list_move_tail(&block->link, &holes);
size = get_size(top, mm.chunk_size);
- KUNIT_ASSERT_TRUE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size,
+ KUNIT_ASSERT_TRUE_MSG(test, gpu_buddy_alloc_blocks(&mm, start, mm_size,
size, size, &tmp, flags),
"buddy_alloc unexpectedly succeeded at top-order %d/%d, it should be full!",
top, max_order);
}
- drm_buddy_free_list(&mm, &holes, 0);
+ gpu_buddy_free_list(&mm, &holes, 0);
/* Nothing larger than blocks of chunk_size now available */
for (order = 1; order <= max_order; order++) {
size = get_size(order, mm.chunk_size);
- KUNIT_ASSERT_TRUE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size,
+ KUNIT_ASSERT_TRUE_MSG(test, gpu_buddy_alloc_blocks(&mm, start, mm_size,
size, size, &tmp, flags),
"buddy_alloc unexpectedly succeeded at order %d, it should be full!",
order);
}
list_splice_tail(&holes, &blocks);
- drm_buddy_free_list(&mm, &blocks, 0);
- drm_buddy_fini(&mm);
+ gpu_buddy_free_list(&mm, &blocks, 0);
+ gpu_buddy_fini(&mm);
}
-static void drm_test_buddy_alloc_pessimistic(struct kunit *test)
+static void gpu_test_buddy_alloc_pessimistic(struct kunit *test)
{
u64 mm_size, size, start = 0;
- struct drm_buddy_block *block, *bn;
+ struct gpu_buddy_block *block, *bn;
const unsigned int max_order = 16;
unsigned long flags = 0;
- struct drm_buddy mm;
+ struct gpu_buddy mm;
unsigned int order;
LIST_HEAD(blocks);
LIST_HEAD(tmp);
@@ -699,19 +699,19 @@ static void drm_test_buddy_alloc_pessimistic(struct kunit *test)
*/
mm_size = SZ_4K << max_order;
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, SZ_4K),
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_init(&mm, mm_size, SZ_4K),
"buddy_init failed\n");
KUNIT_EXPECT_EQ(test, mm.max_order, max_order);
for (order = 0; order < max_order; order++) {
size = get_size(order, mm.chunk_size);
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size,
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_alloc_blocks(&mm, start, mm_size,
size, size, &tmp, flags),
"buddy_alloc hit -ENOMEM with order=%d\n",
order);
- block = list_first_entry_or_null(&tmp, struct drm_buddy_block, link);
+ block = list_first_entry_or_null(&tmp, struct gpu_buddy_block, link);
KUNIT_ASSERT_TRUE_MSG(test, block, "alloc_blocks has no blocks\n");
list_move_tail(&block->link, &blocks);
@@ -719,11 +719,11 @@ static void drm_test_buddy_alloc_pessimistic(struct kunit *test)
/* And now the last remaining block available */
size = get_size(0, mm.chunk_size);
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size,
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_alloc_blocks(&mm, start, mm_size,
size, size, &tmp, flags),
"buddy_alloc hit -ENOMEM on final alloc\n");
- block = list_first_entry_or_null(&tmp, struct drm_buddy_block, link);
+ block = list_first_entry_or_null(&tmp, struct gpu_buddy_block, link);
KUNIT_ASSERT_TRUE_MSG(test, block, "alloc_blocks has no blocks\n");
list_move_tail(&block->link, &blocks);
@@ -731,58 +731,58 @@ static void drm_test_buddy_alloc_pessimistic(struct kunit *test)
/* Should be completely full! */
for (order = max_order; order--;) {
size = get_size(order, mm.chunk_size);
- KUNIT_ASSERT_TRUE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size,
+ KUNIT_ASSERT_TRUE_MSG(test, gpu_buddy_alloc_blocks(&mm, start, mm_size,
size, size, &tmp, flags),
"buddy_alloc unexpectedly succeeded, it should be full!");
}
block = list_last_entry(&blocks, typeof(*block), link);
list_del(&block->link);
- drm_buddy_free_block(&mm, block);
+ gpu_buddy_free_block(&mm, block);
/* As we free in increasing size, we make available larger blocks */
order = 1;
list_for_each_entry_safe(block, bn, &blocks, link) {
list_del(&block->link);
- drm_buddy_free_block(&mm, block);
+ gpu_buddy_free_block(&mm, block);
size = get_size(order, mm.chunk_size);
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size,
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_alloc_blocks(&mm, start, mm_size,
size, size, &tmp, flags),
"buddy_alloc hit -ENOMEM with order=%d\n",
order);
- block = list_first_entry_or_null(&tmp, struct drm_buddy_block, link);
+ block = list_first_entry_or_null(&tmp, struct gpu_buddy_block, link);
KUNIT_ASSERT_TRUE_MSG(test, block, "alloc_blocks has no blocks\n");
list_del(&block->link);
- drm_buddy_free_block(&mm, block);
+ gpu_buddy_free_block(&mm, block);
order++;
}
/* To confirm, now the whole mm should be available */
size = get_size(max_order, mm.chunk_size);
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size,
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_alloc_blocks(&mm, start, mm_size,
size, size, &tmp, flags),
"buddy_alloc (realloc) hit -ENOMEM with order=%d\n",
max_order);
- block = list_first_entry_or_null(&tmp, struct drm_buddy_block, link);
+ block = list_first_entry_or_null(&tmp, struct gpu_buddy_block, link);
KUNIT_ASSERT_TRUE_MSG(test, block, "alloc_blocks has no blocks\n");
list_del(&block->link);
- drm_buddy_free_block(&mm, block);
- drm_buddy_free_list(&mm, &blocks, 0);
- drm_buddy_fini(&mm);
+ gpu_buddy_free_block(&mm, block);
+ gpu_buddy_free_list(&mm, &blocks, 0);
+ gpu_buddy_fini(&mm);
}
-static void drm_test_buddy_alloc_optimistic(struct kunit *test)
+static void gpu_test_buddy_alloc_optimistic(struct kunit *test)
{
u64 mm_size, size, start = 0;
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
unsigned long flags = 0;
const int max_order = 16;
- struct drm_buddy mm;
+ struct gpu_buddy mm;
LIST_HEAD(blocks);
LIST_HEAD(tmp);
int order;
@@ -794,19 +794,19 @@ static void drm_test_buddy_alloc_optimistic(struct kunit *test)
mm_size = SZ_4K * ((1 << (max_order + 1)) - 1);
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, SZ_4K),
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_init(&mm, mm_size, SZ_4K),
"buddy_init failed\n");
KUNIT_EXPECT_EQ(test, mm.max_order, max_order);
for (order = 0; order <= max_order; order++) {
size = get_size(order, mm.chunk_size);
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size,
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_alloc_blocks(&mm, start, mm_size,
size, size, &tmp, flags),
"buddy_alloc hit -ENOMEM with order=%d\n",
order);
- block = list_first_entry_or_null(&tmp, struct drm_buddy_block, link);
+ block = list_first_entry_or_null(&tmp, struct gpu_buddy_block, link);
KUNIT_ASSERT_TRUE_MSG(test, block, "alloc_blocks has no blocks\n");
list_move_tail(&block->link, &blocks);
@@ -814,115 +814,115 @@ static void drm_test_buddy_alloc_optimistic(struct kunit *test)
/* Should be completely full! */
size = get_size(0, mm.chunk_size);
- KUNIT_ASSERT_TRUE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size,
+ KUNIT_ASSERT_TRUE_MSG(test, gpu_buddy_alloc_blocks(&mm, start, mm_size,
size, size, &tmp, flags),
"buddy_alloc unexpectedly succeeded, it should be full!");
- drm_buddy_free_list(&mm, &blocks, 0);
- drm_buddy_fini(&mm);
+ gpu_buddy_free_list(&mm, &blocks, 0);
+ gpu_buddy_fini(&mm);
}
-static void drm_test_buddy_alloc_limit(struct kunit *test)
+static void gpu_test_buddy_alloc_limit(struct kunit *test)
{
u64 size = U64_MAX, start = 0;
- struct drm_buddy_block *block;
+ struct gpu_buddy_block *block;
unsigned long flags = 0;
LIST_HEAD(allocated);
- struct drm_buddy mm;
+ struct gpu_buddy mm;
- KUNIT_EXPECT_FALSE(test, drm_buddy_init(&mm, size, SZ_4K));
+ KUNIT_EXPECT_FALSE(test, gpu_buddy_init(&mm, size, SZ_4K));
- KUNIT_EXPECT_EQ_MSG(test, mm.max_order, DRM_BUDDY_MAX_ORDER,
+ KUNIT_EXPECT_EQ_MSG(test, mm.max_order, GPU_BUDDY_MAX_ORDER,
"mm.max_order(%d) != %d\n", mm.max_order,
- DRM_BUDDY_MAX_ORDER);
+ GPU_BUDDY_MAX_ORDER);
size = mm.chunk_size << mm.max_order;
- KUNIT_EXPECT_FALSE(test, drm_buddy_alloc_blocks(&mm, start, size, size,
+ KUNIT_EXPECT_FALSE(test, gpu_buddy_alloc_blocks(&mm, start, size, size,
mm.chunk_size, &allocated, flags));
- block = list_first_entry_or_null(&allocated, struct drm_buddy_block, link);
+ block = list_first_entry_or_null(&allocated, struct gpu_buddy_block, link);
KUNIT_EXPECT_TRUE(test, block);
- KUNIT_EXPECT_EQ_MSG(test, drm_buddy_block_order(block), mm.max_order,
+ KUNIT_EXPECT_EQ_MSG(test, gpu_buddy_block_order(block), mm.max_order,
"block order(%d) != %d\n",
- drm_buddy_block_order(block), mm.max_order);
+ gpu_buddy_block_order(block), mm.max_order);
- KUNIT_EXPECT_EQ_MSG(test, drm_buddy_block_size(&mm, block),
+ KUNIT_EXPECT_EQ_MSG(test, gpu_buddy_block_size(&mm, block),
BIT_ULL(mm.max_order) * mm.chunk_size,
"block size(%llu) != %llu\n",
- drm_buddy_block_size(&mm, block),
+ gpu_buddy_block_size(&mm, block),
BIT_ULL(mm.max_order) * mm.chunk_size);
- drm_buddy_free_list(&mm, &allocated, 0);
- drm_buddy_fini(&mm);
+ gpu_buddy_free_list(&mm, &allocated, 0);
+ gpu_buddy_fini(&mm);
}
-static void drm_test_buddy_alloc_exceeds_max_order(struct kunit *test)
+static void gpu_test_buddy_alloc_exceeds_max_order(struct kunit *test)
{
u64 mm_size = SZ_8G + SZ_2G, size = SZ_8G + SZ_1G, min_block_size = SZ_8G;
- struct drm_buddy mm;
+ struct gpu_buddy mm;
LIST_HEAD(blocks);
int err;
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, SZ_4K),
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_init(&mm, mm_size, SZ_4K),
"buddy_init failed\n");
/* CONTIGUOUS allocation should succeed via try_harder fallback */
- KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, 0, mm_size, size,
+ KUNIT_ASSERT_FALSE_MSG(test, gpu_buddy_alloc_blocks(&mm, 0, mm_size, size,
SZ_4K, &blocks,
- DRM_BUDDY_CONTIGUOUS_ALLOCATION),
+ GPU_BUDDY_CONTIGUOUS_ALLOCATION),
"buddy_alloc hit an error size=%llu\n", size);
- drm_buddy_free_list(&mm, &blocks, 0);
+ gpu_buddy_free_list(&mm, &blocks, 0);
/* Non-CONTIGUOUS with large min_block_size should return -EINVAL */
- err = drm_buddy_alloc_blocks(&mm, 0, mm_size, size, min_block_size, &blocks, 0);
+ err = gpu_buddy_alloc_blocks(&mm, 0, mm_size, size, min_block_size, &blocks, 0);
KUNIT_EXPECT_EQ(test, err, -EINVAL);
/* Non-CONTIGUOUS + RANGE with large min_block_size should return -EINVAL */
- err = drm_buddy_alloc_blocks(&mm, 0, mm_size, size, min_block_size, &blocks,
- DRM_BUDDY_RANGE_ALLOCATION);
+ err = gpu_buddy_alloc_blocks(&mm, 0, mm_size, size, min_block_size, &blocks,
+ GPU_BUDDY_RANGE_ALLOCATION);
KUNIT_EXPECT_EQ(test, err, -EINVAL);
/* CONTIGUOUS + RANGE should return -EINVAL (no try_harder for RANGE) */
- err = drm_buddy_alloc_blocks(&mm, 0, mm_size, size, SZ_4K, &blocks,
- DRM_BUDDY_CONTIGUOUS_ALLOCATION | DRM_BUDDY_RANGE_ALLOCATION);
+ err = gpu_buddy_alloc_blocks(&mm, 0, mm_size, size, SZ_4K, &blocks,
+ GPU_BUDDY_CONTIGUOUS_ALLOCATION | GPU_BUDDY_RANGE_ALLOCATION);
KUNIT_EXPECT_EQ(test, err, -EINVAL);
- drm_buddy_fini(&mm);
+ gpu_buddy_fini(&mm);
}
-static int drm_buddy_suite_init(struct kunit_suite *suite)
+static int gpu_buddy_suite_init(struct kunit_suite *suite)
{
while (!random_seed)
random_seed = get_random_u32();
- kunit_info(suite, "Testing DRM buddy manager, with random_seed=0x%x\n",
+ kunit_info(suite, "Testing GPU buddy manager, with random_seed=0x%x\n",
random_seed);
return 0;
}
-static struct kunit_case drm_buddy_tests[] = {
- KUNIT_CASE(drm_test_buddy_alloc_limit),
- KUNIT_CASE(drm_test_buddy_alloc_optimistic),
- KUNIT_CASE(drm_test_buddy_alloc_pessimistic),
- KUNIT_CASE(drm_test_buddy_alloc_pathological),
- KUNIT_CASE(drm_test_buddy_alloc_contiguous),
- KUNIT_CASE(drm_test_buddy_alloc_clear),
- KUNIT_CASE(drm_test_buddy_alloc_range_bias),
- KUNIT_CASE(drm_test_buddy_fragmentation_performance),
- KUNIT_CASE(drm_test_buddy_alloc_exceeds_max_order),
+static struct kunit_case gpu_buddy_tests[] = {
+ KUNIT_CASE(gpu_test_buddy_alloc_limit),
+ KUNIT_CASE(gpu_test_buddy_alloc_optimistic),
+ KUNIT_CASE(gpu_test_buddy_alloc_pessimistic),
+ KUNIT_CASE(gpu_test_buddy_alloc_pathological),
+ KUNIT_CASE(gpu_test_buddy_alloc_contiguous),
+ KUNIT_CASE(gpu_test_buddy_alloc_clear),
+ KUNIT_CASE(gpu_test_buddy_alloc_range_bias),
+ KUNIT_CASE(gpu_test_buddy_fragmentation_performance),
+ KUNIT_CASE(gpu_test_buddy_alloc_exceeds_max_order),
{}
};
-static struct kunit_suite drm_buddy_test_suite = {
- .name = "drm_buddy",
- .suite_init = drm_buddy_suite_init,
- .test_cases = drm_buddy_tests,
+static struct kunit_suite gpu_buddy_test_suite = {
+ .name = "gpu_buddy",
+ .suite_init = gpu_buddy_suite_init,
+ .test_cases = gpu_buddy_tests,
};
-kunit_test_suite(drm_buddy_test_suite);
+kunit_test_suite(gpu_buddy_test_suite);
MODULE_AUTHOR("Intel Corporation");
-MODULE_DESCRIPTION("Kunit test for drm_buddy functions");
+MODULE_DESCRIPTION("Kunit test for gpu_buddy functions");
MODULE_LICENSE("GPL");
diff --git a/drivers/gpu/tests/gpu_random.c b/drivers/gpu/tests/gpu_random.c
index ddd1f594b5d5..6356372f7e52 100644
--- a/drivers/gpu/tests/gpu_random.c
+++ b/drivers/gpu/tests/gpu_random.c
@@ -8,26 +8,26 @@
#include "gpu_random.h"
-u32 drm_prandom_u32_max_state(u32 ep_ro, struct rnd_state *state)
+u32 gpu_prandom_u32_max_state(u32 ep_ro, struct rnd_state *state)
{
return upper_32_bits((u64)prandom_u32_state(state) * ep_ro);
}
-EXPORT_SYMBOL(drm_prandom_u32_max_state);
+EXPORT_SYMBOL(gpu_prandom_u32_max_state);
-void drm_random_reorder(unsigned int *order, unsigned int count,
+void gpu_random_reorder(unsigned int *order, unsigned int count,
struct rnd_state *state)
{
unsigned int i, j;
for (i = 0; i < count; ++i) {
BUILD_BUG_ON(sizeof(unsigned int) > sizeof(u32));
- j = drm_prandom_u32_max_state(count, state);
+ j = gpu_prandom_u32_max_state(count, state);
swap(order[i], order[j]);
}
}
-EXPORT_SYMBOL(drm_random_reorder);
+EXPORT_SYMBOL(gpu_random_reorder);
-unsigned int *drm_random_order(unsigned int count, struct rnd_state *state)
+unsigned int *gpu_random_order(unsigned int count, struct rnd_state *state)
{
unsigned int *order, i;
@@ -38,7 +38,7 @@ unsigned int *drm_random_order(unsigned int count, struct rnd_state *state)
for (i = 0; i < count; i++)
order[i] = i;
- drm_random_reorder(order, count, state);
+ gpu_random_reorder(order, count, state);
return order;
}
-EXPORT_SYMBOL(drm_random_order);
+EXPORT_SYMBOL(gpu_random_order);
diff --git a/drivers/gpu/tests/gpu_random.h b/drivers/gpu/tests/gpu_random.h
index 9f827260a89d..b68cf3448264 100644
--- a/drivers/gpu/tests/gpu_random.h
+++ b/drivers/gpu/tests/gpu_random.h
@@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __DRM_RANDOM_H__
-#define __DRM_RANDOM_H__
+#ifndef __GPU_RANDOM_H__
+#define __GPU_RANDOM_H__
/* This is a temporary home for a couple of utility functions that should
* be transposed to lib/ at the earliest convenience.
@@ -8,21 +8,21 @@
#include <linux/prandom.h>
-#define DRM_RND_STATE_INITIALIZER(seed__) ({ \
+#define GPU_RND_STATE_INITIALIZER(seed__) ({ \
struct rnd_state state__; \
prandom_seed_state(&state__, (seed__)); \
state__; \
})
-#define DRM_RND_STATE(name__, seed__) \
- struct rnd_state name__ = DRM_RND_STATE_INITIALIZER(seed__)
+#define GPU_RND_STATE(name__, seed__) \
+ struct rnd_state name__ = GPU_RND_STATE_INITIALIZER(seed__)
-unsigned int *drm_random_order(unsigned int count,
+unsigned int *gpu_random_order(unsigned int count,
struct rnd_state *state);
-void drm_random_reorder(unsigned int *order,
+void gpu_random_reorder(unsigned int *order,
unsigned int count,
struct rnd_state *state);
-u32 drm_prandom_u32_max_state(u32 ep_ro,
+u32 gpu_prandom_u32_max_state(u32 ep_ro,
struct rnd_state *state);
-#endif /* !__DRM_RANDOM_H__ */
+#endif /* !__GPU_RANDOM_H__ */
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 9884f003247d..a7144d275f54 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -37,6 +37,7 @@ source "drivers/char/agp/Kconfig"
source "drivers/gpu/vga/Kconfig"
+source "drivers/gpu/Kconfig"
source "drivers/gpu/host1x/Kconfig"
source "drivers/gpu/ipu-v3/Kconfig"
source "drivers/gpu/nova-core/Kconfig"
diff --git a/include/drm/drm_buddy.h b/include/drm/drm_buddy.h
new file mode 100644
index 000000000000..3054369bebff
--- /dev/null
+++ b/include/drm/drm_buddy.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2021 Intel Corporation
+ */
+
+#ifndef __DRM_BUDDY_H__
+#define __DRM_BUDDY_H__
+
+#include <linux/gpu_buddy.h>
+
+struct drm_printer;
+
+/* DRM-specific GPU Buddy Allocator print helpers */
+void drm_buddy_print(struct gpu_buddy *mm, struct drm_printer *p);
+void drm_buddy_block_print(struct gpu_buddy *mm,
+ struct gpu_buddy_block *block,
+ struct drm_printer *p);
+#endif
diff --git a/include/linux/gpu_buddy.h b/include/linux/gpu_buddy.h
index b909fa8f810a..07ac65db6d2e 100644
--- a/include/linux/gpu_buddy.h
+++ b/include/linux/gpu_buddy.h
@@ -3,8 +3,8 @@
* Copyright © 2021 Intel Corporation
*/
-#ifndef __DRM_BUDDY_H__
-#define __DRM_BUDDY_H__
+#ifndef __GPU_BUDDY_H__
+#define __GPU_BUDDY_H__
#include <linux/bitops.h>
#include <linux/list.h>
@@ -12,38 +12,45 @@
#include <linux/sched.h>
#include <linux/rbtree.h>
-struct drm_printer;
+#define GPU_BUDDY_RANGE_ALLOCATION BIT(0)
+#define GPU_BUDDY_TOPDOWN_ALLOCATION BIT(1)
+#define GPU_BUDDY_CONTIGUOUS_ALLOCATION BIT(2)
+#define GPU_BUDDY_CLEAR_ALLOCATION BIT(3)
+#define GPU_BUDDY_CLEARED BIT(4)
+#define GPU_BUDDY_TRIM_DISABLE BIT(5)
-#define DRM_BUDDY_RANGE_ALLOCATION BIT(0)
-#define DRM_BUDDY_TOPDOWN_ALLOCATION BIT(1)
-#define DRM_BUDDY_CONTIGUOUS_ALLOCATION BIT(2)
-#define DRM_BUDDY_CLEAR_ALLOCATION BIT(3)
-#define DRM_BUDDY_CLEARED BIT(4)
-#define DRM_BUDDY_TRIM_DISABLE BIT(5)
+enum gpu_buddy_free_tree {
+ GPU_BUDDY_CLEAR_TREE = 0,
+ GPU_BUDDY_DIRTY_TREE,
+ GPU_BUDDY_MAX_FREE_TREES,
+};
-struct drm_buddy_block {
-#define DRM_BUDDY_HEADER_OFFSET GENMASK_ULL(63, 12)
-#define DRM_BUDDY_HEADER_STATE GENMASK_ULL(11, 10)
-#define DRM_BUDDY_ALLOCATED (1 << 10)
-#define DRM_BUDDY_FREE (2 << 10)
-#define DRM_BUDDY_SPLIT (3 << 10)
-#define DRM_BUDDY_HEADER_CLEAR GENMASK_ULL(9, 9)
+#define for_each_free_tree(tree) \
+ for ((tree) = 0; (tree) < GPU_BUDDY_MAX_FREE_TREES; (tree)++)
+
+struct gpu_buddy_block {
+#define GPU_BUDDY_HEADER_OFFSET GENMASK_ULL(63, 12)
+#define GPU_BUDDY_HEADER_STATE GENMASK_ULL(11, 10)
+#define GPU_BUDDY_ALLOCATED (1 << 10)
+#define GPU_BUDDY_FREE (2 << 10)
+#define GPU_BUDDY_SPLIT (3 << 10)
+#define GPU_BUDDY_HEADER_CLEAR GENMASK_ULL(9, 9)
/* Free to be used, if needed in the future */
-#define DRM_BUDDY_HEADER_UNUSED GENMASK_ULL(8, 6)
-#define DRM_BUDDY_HEADER_ORDER GENMASK_ULL(5, 0)
+#define GPU_BUDDY_HEADER_UNUSED GENMASK_ULL(8, 6)
+#define GPU_BUDDY_HEADER_ORDER GENMASK_ULL(5, 0)
u64 header;
- struct drm_buddy_block *left;
- struct drm_buddy_block *right;
- struct drm_buddy_block *parent;
+ struct gpu_buddy_block *left;
+ struct gpu_buddy_block *right;
+ struct gpu_buddy_block *parent;
void *private; /* owned by creator */
/*
- * While the block is allocated by the user through drm_buddy_alloc*,
+ * While the block is allocated by the user through gpu_buddy_alloc*,
* the user has ownership of the link, for example to maintain within
* a list, if so desired. As soon as the block is freed with
- * drm_buddy_free* ownership is given back to the mm.
+ * gpu_buddy_free* ownership is given back to the mm.
*/
union {
struct rb_node rb;
@@ -54,15 +61,15 @@ struct drm_buddy_block {
};
/* Order-zero must be at least SZ_4K */
-#define DRM_BUDDY_MAX_ORDER (63 - 12)
+#define GPU_BUDDY_MAX_ORDER (63 - 12)
/*
* Binary Buddy System.
*
* Locking should be handled by the user, a simple mutex around
- * drm_buddy_alloc* and drm_buddy_free* should suffice.
+ * gpu_buddy_alloc* and gpu_buddy_free* should suffice.
*/
-struct drm_buddy {
+struct gpu_buddy {
/* Maintain a free list for each order. */
struct rb_root **free_trees;
@@ -73,7 +80,7 @@ struct drm_buddy {
* block. Nodes are either allocated or free, in which case they will
* also exist on the respective free list.
*/
- struct drm_buddy_block **roots;
+ struct gpu_buddy_block **roots;
/*
* Anything from here is public, and remains static for the lifetime of
@@ -90,82 +97,81 @@ struct drm_buddy {
};
static inline u64
-drm_buddy_block_offset(const struct drm_buddy_block *block)
+gpu_buddy_block_offset(const struct gpu_buddy_block *block)
{
- return block->header & DRM_BUDDY_HEADER_OFFSET;
+ return block->header & GPU_BUDDY_HEADER_OFFSET;
}
static inline unsigned int
-drm_buddy_block_order(struct drm_buddy_block *block)
+gpu_buddy_block_order(struct gpu_buddy_block *block)
{
- return block->header & DRM_BUDDY_HEADER_ORDER;
+ return block->header & GPU_BUDDY_HEADER_ORDER;
}
static inline unsigned int
-drm_buddy_block_state(struct drm_buddy_block *block)
+gpu_buddy_block_state(struct gpu_buddy_block *block)
{
- return block->header & DRM_BUDDY_HEADER_STATE;
+ return block->header & GPU_BUDDY_HEADER_STATE;
}
static inline bool
-drm_buddy_block_is_allocated(struct drm_buddy_block *block)
+gpu_buddy_block_is_allocated(struct gpu_buddy_block *block)
{
- return drm_buddy_block_state(block) == DRM_BUDDY_ALLOCATED;
+ return gpu_buddy_block_state(block) == GPU_BUDDY_ALLOCATED;
}
static inline bool
-drm_buddy_block_is_clear(struct drm_buddy_block *block)
+gpu_buddy_block_is_clear(struct gpu_buddy_block *block)
{
- return block->header & DRM_BUDDY_HEADER_CLEAR;
+ return block->header & GPU_BUDDY_HEADER_CLEAR;
}
static inline bool
-drm_buddy_block_is_free(struct drm_buddy_block *block)
+gpu_buddy_block_is_free(struct gpu_buddy_block *block)
{
- return drm_buddy_block_state(block) == DRM_BUDDY_FREE;
+ return gpu_buddy_block_state(block) == GPU_BUDDY_FREE;
}
static inline bool
-drm_buddy_block_is_split(struct drm_buddy_block *block)
+gpu_buddy_block_is_split(struct gpu_buddy_block *block)
{
- return drm_buddy_block_state(block) == DRM_BUDDY_SPLIT;
+ return gpu_buddy_block_state(block) == GPU_BUDDY_SPLIT;
}
static inline u64
-drm_buddy_block_size(struct drm_buddy *mm,
- struct drm_buddy_block *block)
+gpu_buddy_block_size(struct gpu_buddy *mm,
+ struct gpu_buddy_block *block)
{
- return mm->chunk_size << drm_buddy_block_order(block);
+ return mm->chunk_size << gpu_buddy_block_order(block);
}
-int drm_buddy_init(struct drm_buddy *mm, u64 size, u64 chunk_size);
+int gpu_buddy_init(struct gpu_buddy *mm, u64 size, u64 chunk_size);
-void drm_buddy_fini(struct drm_buddy *mm);
+void gpu_buddy_fini(struct gpu_buddy *mm);
-struct drm_buddy_block *
-drm_get_buddy(struct drm_buddy_block *block);
+struct gpu_buddy_block *
+gpu_get_buddy(struct gpu_buddy_block *block);
-int drm_buddy_alloc_blocks(struct drm_buddy *mm,
+int gpu_buddy_alloc_blocks(struct gpu_buddy *mm,
u64 start, u64 end, u64 size,
u64 min_page_size,
struct list_head *blocks,
unsigned long flags);
-int drm_buddy_block_trim(struct drm_buddy *mm,
+int gpu_buddy_block_trim(struct gpu_buddy *mm,
u64 *start,
u64 new_size,
struct list_head *blocks);
-void drm_buddy_reset_clear(struct drm_buddy *mm, bool is_clear);
+void gpu_buddy_reset_clear(struct gpu_buddy *mm, bool is_clear);
-void drm_buddy_free_block(struct drm_buddy *mm, struct drm_buddy_block *block);
+void gpu_buddy_free_block(struct gpu_buddy *mm, struct gpu_buddy_block *block);
-void drm_buddy_free_list(struct drm_buddy *mm,
+void gpu_buddy_free_list(struct gpu_buddy *mm,
struct list_head *objects,
unsigned int flags);
-void drm_buddy_print(struct drm_buddy *mm, struct drm_printer *p);
-void drm_buddy_block_print(struct drm_buddy *mm,
- struct drm_buddy_block *block,
- struct drm_printer *p);
+void gpu_buddy_print(struct gpu_buddy *mm);
+void gpu_buddy_block_print(struct gpu_buddy *mm,
+ struct gpu_buddy_block *block);
#endif
--
2.34.1
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