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| author | Noralf Trønnes <noralf@tronnes.org> | 2017-07-23 22:16:18 +0300 |
|---|---|---|
| committer | Noralf Trønnes <noralf@tronnes.org> | 2017-07-29 14:51:44 +0300 |
| commit | 0be8d63a840ab7cacb08f1af1f2395be0fe3b698 (patch) | |
| tree | e84eea16a9c52cf50fe91f55c534d97648e4b682 /drivers/gpu/drm/drm_dumb_buffers.c | |
| parent | db61152703c64133e42b8c720a83ff36e1824bb1 (diff) | |
| download | linux-0be8d63a840ab7cacb08f1af1f2395be0fe3b698.tar.xz | |
drm/dumb-buffers: Add defaults for .dumb_map_offset and .dumb_destroy
Almost everyone did end up using GEM as bo, so this adds defaults
for the drm_driver.dumb_destroy and drm_driver.dumb_map_offset
callbacks.
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1500837417-40580-3-git-send-email-noralf@tronnes.org
Diffstat (limited to 'drivers/gpu/drm/drm_dumb_buffers.c')
| -rw-r--r-- | drivers/gpu/drm/drm_dumb_buffers.c | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/drivers/gpu/drm/drm_dumb_buffers.c b/drivers/gpu/drm/drm_dumb_buffers.c index 10307cc16d75..39ac15ce4702 100644 --- a/drivers/gpu/drm/drm_dumb_buffers.c +++ b/drivers/gpu/drm/drm_dumb_buffers.c @@ -24,6 +24,7 @@ */ #include <drm/drmP.h> +#include <drm/drm_gem.h> #include "drm_crtc_internal.h" @@ -42,9 +43,10 @@ * create dumb buffers suitable for scanout, which can then be used to create * KMS frame buffers. * - * To support dumb objects drivers must implement the &drm_driver.dumb_create, - * &drm_driver.dumb_destroy and &drm_driver.dumb_map_offset operations. See - * there for further details. + * To support dumb objects drivers must implement the &drm_driver.dumb_create + * operation. &drm_driver.dumb_destroy defaults to drm_gem_dumb_destroy() if + * not set and &drm_driver.dumb_map_offset defaults to + * drm_gem_dumb_map_offset(). See the callbacks for further details. * * Note that dumb objects may not be used for gpu acceleration, as has been * attempted on some ARM embedded platforms. Such drivers really must have @@ -108,11 +110,16 @@ int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, { struct drm_mode_map_dumb *args = data; - /* call driver ioctl to get mmap offset */ - if (!dev->driver->dumb_map_offset) + if (!dev->driver->dumb_create) return -ENOSYS; - return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); + if (dev->driver->dumb_map_offset) + return dev->driver->dumb_map_offset(file_priv, dev, + args->handle, + &args->offset); + else + return drm_gem_dumb_map_offset(file_priv, dev, args->handle, + &args->offset); } int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, @@ -120,9 +127,12 @@ int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, { struct drm_mode_destroy_dumb *args = data; - if (!dev->driver->dumb_destroy) + if (!dev->driver->dumb_create) return -ENOSYS; - return dev->driver->dumb_destroy(file_priv, dev, args->handle); + if (dev->driver->dumb_destroy) + return dev->driver->dumb_destroy(file_priv, dev, args->handle); + else + return drm_gem_dumb_destroy(file_priv, dev, args->handle); } |