diff options
| author | Thomas Zimmermann <tzimmermann@suse.de> | 2019-11-07 10:43:04 +0100 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2019-11-08 12:29:47 +0100 |
| commit | 92c4eeb0c9d2e7cc2d9ebd734bdd78cb69f72f88 (patch) | |
| tree | bfe3d213f384ff0c001ea3618383d6082c4f8ece /drivers/gpu/drm/udl | |
| parent | drm/radeon: finally fix the racy VMA setup (diff) | |
| download | linux-92c4eeb0c9d2e7cc2d9ebd734bdd78cb69f72f88.tar.xz linux-92c4eeb0c9d2e7cc2d9ebd734bdd78cb69f72f88.zip | |
drm/udl: Remove flags field from struct udl_gem_object
The flags field in struct udl_gem controls mapping parameters: cached
access for local buffers, write-combined access for imported buffers.
We can drop the field and distinguish both cases by testing whether
struct drm_gem_object.import_attach is NULL.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191107094307.19870-2-tzimmermann@suse.de
Diffstat (limited to 'drivers/gpu/drm/udl')
| -rw-r--r-- | drivers/gpu/drm/udl/udl_dmabuf.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/udl/udl_drv.h | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/udl/udl_gem.c | 27 |
3 files changed, 7 insertions, 25 deletions
diff --git a/drivers/gpu/drm/udl/udl_dmabuf.c b/drivers/gpu/drm/udl/udl_dmabuf.c index 3108e9a9234b..b1c1ee64de59 100644 --- a/drivers/gpu/drm/udl/udl_dmabuf.c +++ b/drivers/gpu/drm/udl/udl_dmabuf.c @@ -241,7 +241,6 @@ struct drm_gem_object *udl_gem_prime_import(struct drm_device *dev, goto fail_unmap; uobj->base.import_attach = attach; - uobj->flags = UDL_BO_WC; return &uobj->base; diff --git a/drivers/gpu/drm/udl/udl_drv.h b/drivers/gpu/drm/udl/udl_drv.h index 12a970fd9a87..e1306a51903c 100644 --- a/drivers/gpu/drm/udl/udl_drv.h +++ b/drivers/gpu/drm/udl/udl_drv.h @@ -29,9 +29,6 @@ struct drm_mode_create_dumb; #define DRIVER_MINOR 0 #define DRIVER_PATCHLEVEL 1 -#define UDL_BO_CACHEABLE (1 << 0) -#define UDL_BO_WC (1 << 1) - struct udl_device; struct urb_node { @@ -81,7 +78,6 @@ struct udl_gem_object { struct page **pages; void *vmapping; struct sg_table *sg; - unsigned int flags; }; #define to_udl_bo(x) container_of(x, struct udl_gem_object, base) diff --git a/drivers/gpu/drm/udl/udl_gem.c b/drivers/gpu/drm/udl/udl_gem.c index b23a5c2fcd80..7d3c1b73ea02 100644 --- a/drivers/gpu/drm/udl/udl_gem.c +++ b/drivers/gpu/drm/udl/udl_gem.c @@ -25,7 +25,6 @@ struct udl_gem_object *udl_gem_alloc_object(struct drm_device *dev, return NULL; } - obj->flags = UDL_BO_CACHEABLE; return obj; } @@ -57,23 +56,6 @@ udl_gem_create(struct drm_file *file, return 0; } -static void update_vm_cache_attr(struct udl_gem_object *obj, - struct vm_area_struct *vma) -{ - DRM_DEBUG_KMS("flags = 0x%x\n", obj->flags); - - /* non-cacheable as default. */ - if (obj->flags & UDL_BO_CACHEABLE) { - vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); - } else if (obj->flags & UDL_BO_WC) { - vma->vm_page_prot = - pgprot_writecombine(vm_get_page_prot(vma->vm_flags)); - } else { - vma->vm_page_prot = - pgprot_noncached(vm_get_page_prot(vma->vm_flags)); - } -} - int udl_dumb_create(struct drm_file *file, struct drm_device *dev, struct drm_mode_create_dumb *args) @@ -86,16 +68,21 @@ int udl_dumb_create(struct drm_file *file, int udl_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma) { + struct drm_gem_object *obj; int ret; ret = drm_gem_mmap(filp, vma); if (ret) return ret; + obj = vma->vm_private_data; + vma->vm_flags &= ~VM_PFNMAP; vma->vm_flags |= VM_MIXEDMAP; - update_vm_cache_attr(to_udl_bo(vma->vm_private_data), vma); + vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); + if (obj->import_attach) + vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); return ret; } @@ -155,7 +142,7 @@ int udl_gem_vmap(struct udl_gem_object *obj) return -ENOMEM; return 0; } - + ret = udl_gem_get_pages(obj); if (ret) return ret; |