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-rw-r--r--drivers/gpu/drm/drm_gem_shmem_helper.c14
-rw-r--r--drivers/gpu/drm/lima/lima_gem.c2
-rw-r--r--drivers/gpu/drm/panfrost/panfrost_gem.c2
-rw-r--r--drivers/gpu/drm/v3d/v3d_bo.c2
-rw-r--r--drivers/gpu/drm/virtio/virtgpu_object.c1
-rw-r--r--include/drm/drm_gem_shmem_helper.h4
6 files changed, 13 insertions, 12 deletions
diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c
index 499189c48f0b..b1c7a316f232 100644
--- a/drivers/gpu/drm/drm_gem_shmem_helper.c
+++ b/drivers/gpu/drm/drm_gem_shmem_helper.c
@@ -51,13 +51,17 @@ __drm_gem_shmem_create(struct drm_device *dev, size_t size, bool private)
if (!obj)
return ERR_PTR(-ENOMEM);
+ shmem = to_drm_gem_shmem_obj(obj);
+
if (!obj->funcs)
obj->funcs = &drm_gem_shmem_funcs;
- if (private)
+ if (private) {
drm_gem_private_object_init(dev, obj, size);
- else
+ shmem->map_wc = false; /* dma-buf mappings use always writecombine */
+ } else {
ret = drm_gem_object_init(dev, obj, size);
+ }
if (ret)
goto err_free;
@@ -65,7 +69,6 @@ __drm_gem_shmem_create(struct drm_device *dev, size_t size, bool private)
if (ret)
goto err_release;
- shmem = to_drm_gem_shmem_obj(obj);
mutex_init(&shmem->pages_lock);
mutex_init(&shmem->vmap_lock);
INIT_LIST_HEAD(&shmem->madv_list);
@@ -284,7 +287,7 @@ static int drm_gem_shmem_vmap_locked(struct drm_gem_shmem_object *shmem, struct
if (ret)
goto err_zero_use;
- if (!shmem->map_cached)
+ if (shmem->map_wc)
prot = pgprot_writecombine(prot);
shmem->vaddr = vmap(shmem->pages, obj->size >> PAGE_SHIFT,
VM_MAP, prot);
@@ -497,7 +500,6 @@ drm_gem_shmem_create_object_cached(struct drm_device *dev, size_t size)
shmem = kzalloc(sizeof(*shmem), GFP_KERNEL);
if (!shmem)
return NULL;
- shmem->map_cached = true;
return &shmem->base;
}
@@ -626,7 +628,7 @@ int drm_gem_shmem_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
vma->vm_flags |= VM_MIXEDMAP | VM_DONTEXPAND;
vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
- if (!shmem->map_cached)
+ if (shmem->map_wc)
vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
vma->vm_ops = &drm_gem_shmem_vm_ops;
diff --git a/drivers/gpu/drm/lima/lima_gem.c b/drivers/gpu/drm/lima/lima_gem.c
index 832e5280a6ed..de62966243cd 100644
--- a/drivers/gpu/drm/lima/lima_gem.c
+++ b/drivers/gpu/drm/lima/lima_gem.c
@@ -225,7 +225,7 @@ struct drm_gem_object *lima_gem_create_object(struct drm_device *dev, size_t siz
mutex_init(&bo->lock);
INIT_LIST_HEAD(&bo->va);
-
+ bo->base.map_wc = true;
bo->base.base.funcs = &lima_gem_funcs;
return &bo->base.base;
diff --git a/drivers/gpu/drm/panfrost/panfrost_gem.c b/drivers/gpu/drm/panfrost/panfrost_gem.c
index 57a31dd0ffed..3e0723bc36bd 100644
--- a/drivers/gpu/drm/panfrost/panfrost_gem.c
+++ b/drivers/gpu/drm/panfrost/panfrost_gem.c
@@ -228,7 +228,7 @@ struct drm_gem_object *panfrost_gem_create_object(struct drm_device *dev, size_t
INIT_LIST_HEAD(&obj->mappings.list);
mutex_init(&obj->mappings.lock);
obj->base.base.funcs = &panfrost_gem_funcs;
- obj->base.map_cached = pfdev->coherent;
+ obj->base.map_wc = !pfdev->coherent;
return &obj->base.base;
}
diff --git a/drivers/gpu/drm/v3d/v3d_bo.c b/drivers/gpu/drm/v3d/v3d_bo.c
index 8b52cb25877c..6a8731ab9d7d 100644
--- a/drivers/gpu/drm/v3d/v3d_bo.c
+++ b/drivers/gpu/drm/v3d/v3d_bo.c
@@ -78,7 +78,7 @@ struct drm_gem_object *v3d_create_object(struct drm_device *dev, size_t size)
obj = &bo->base.base;
obj->funcs = &v3d_gem_funcs;
-
+ bo->base.map_wc = true;
INIT_LIST_HEAD(&bo->unref_head);
return &bo->base.base;
diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c
index d9ad27e00905..d69a5b6da553 100644
--- a/drivers/gpu/drm/virtio/virtgpu_object.c
+++ b/drivers/gpu/drm/virtio/virtgpu_object.c
@@ -144,7 +144,6 @@ struct drm_gem_object *virtio_gpu_create_object(struct drm_device *dev,
dshmem = &shmem->base.base;
dshmem->base.funcs = &virtio_gpu_shmem_funcs;
- dshmem->map_cached = true;
return &dshmem->base;
}
diff --git a/include/drm/drm_gem_shmem_helper.h b/include/drm/drm_gem_shmem_helper.h
index 3449a0353fe0..f32801db3203 100644
--- a/include/drm/drm_gem_shmem_helper.h
+++ b/include/drm/drm_gem_shmem_helper.h
@@ -98,9 +98,9 @@ struct drm_gem_shmem_object {
unsigned int vmap_use_count;
/**
- * @map_cached: map object cached (instead of using writecombine).
+ * @map_wc: map object write-combined (instead of using shmem defaults).
*/
- bool map_cached;
+ bool map_wc;
};
#define to_drm_gem_shmem_obj(obj) \