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Enable Big/Super Pages for v3d #7285

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45e4271
drm/v3d: Only use Big/Super Pages if BO >= 512KB
mairacanal Feb 27, 2026
b2316a1
configs: enable CONFIG_TRANSPARENT_HUGEPAGE=y
mairacanal Mar 14, 2026
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2 changes: 2 additions & 0 deletions arch/arm64/configs/bcm2711_defconfig
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Original file line number Diff line number Diff line change
Expand Up @@ -85,6 +85,8 @@ CONFIG_MAC_PARTITION=y
CONFIG_BINFMT_MISC=m
CONFIG_ZSWAP=y
# CONFIG_COMPAT_BRK is not set
CONFIG_TRANSPARENT_HUGEPAGE=y
CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y
CONFIG_CMA=y
CONFIG_CMA_AREAS=7
CONFIG_LRU_GEN=y
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2 changes: 2 additions & 0 deletions arch/arm64/configs/bcm2712_defconfig
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Original file line number Diff line number Diff line change
Expand Up @@ -88,6 +88,8 @@ CONFIG_MAC_PARTITION=y
CONFIG_BINFMT_MISC=m
CONFIG_ZSWAP=y
# CONFIG_COMPAT_BRK is not set
CONFIG_TRANSPARENT_HUGEPAGE=y
CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y
CONFIG_CMA=y
CONFIG_CMA_AREAS=7
CONFIG_LRU_GEN=y
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10 changes: 7 additions & 3 deletions drivers/gpu/drm/v3d/v3d_bo.c
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Original file line number Diff line number Diff line change
Expand Up @@ -116,7 +116,7 @@ v3d_bo_create_finish(struct drm_gem_object *obj)
align = SZ_4K;
else if (obj->size >= SZ_1M)
align = SZ_1M;
else if (obj->size >= SZ_64K)
else if (obj->size >= SZ_512K)
align = SZ_64K;
else
align = SZ_4K;
Expand Down Expand Up @@ -150,10 +150,14 @@ struct v3d_bo *v3d_bo_create(struct drm_device *dev, struct drm_file *file_priv,
struct drm_gem_shmem_object *shmem_obj;
struct v3d_dev *v3d = to_v3d_dev(dev);
struct v3d_bo *bo;
size_t size = PAGE_ALIGN(unaligned_size);
int ret;

shmem_obj = drm_gem_shmem_create_with_mnt(dev, unaligned_size,
v3d->gemfs);
if (size >= SZ_512K)
shmem_obj = drm_gem_shmem_create_with_mnt(dev, size, v3d->gemfs);
else
shmem_obj = drm_gem_shmem_create(dev, size);

if (IS_ERR(shmem_obj))
return ERR_CAST(shmem_obj);
bo = to_v3d_bo(&shmem_obj->base);
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