Adds a conversion function that extracts the device type from the PCI id-table flags. Allows for storing additional information in the other flag bits.

Signed-off-by: Thomas Zimmermann tzimmermann@suse.de Fixes: 81da87f63a1e ("drm: Replace drm_gem_vram_push_to_system() with kunmap + unpin") Reviewed-by: Daniel Vetter daniel.vetter@ffwll.ch Cc: John Donnelly john.p.donnelly@oracle.com Cc: Gerd Hoffmann kraxel@redhat.com Cc: Dave Airlie airlied@redhat.com Cc: Maarten Lankhorst maarten.lankhorst@linux.intel.com Cc: Maxime Ripard mripard@kernel.org Cc: David Airlie airlied@linux.ie Cc: Sam Ravnborg sam@ravnborg.org Cc: Emil Velikov emil.velikov@collabora.com Cc: "Y.C. Chen" yc_chen@aspeedtech.com Cc: Laurent Pinchart laurent.pinchart@ideasonboard.com Cc: "José Roberto de Souza" jose.souza@intel.com Cc: Andrzej Pietrasiewicz andrzej.p@collabora.com Cc: dri-devel@lists.freedesktop.org Cc: stable@vger.kernel.org # v5.3+ --- drivers/gpu/drm/mgag200/mgag200_drv.h | 7 +++++++ drivers/gpu/drm/mgag200/mgag200_main.c | 2 +- 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h b/drivers/gpu/drm/mgag200/mgag200_drv.h index 0ea9a525e57d..976404634092 100644 --- a/drivers/gpu/drm/mgag200/mgag200_drv.h +++ b/drivers/gpu/drm/mgag200/mgag200_drv.h @@ -150,6 +150,8 @@ enum mga_type { G200_EW3, };

+#define MGAG200_TYPE_MASK (0x000000ff) + #define IS_G200_SE(mdev) (mdev->type == G200_SE_A || mdev->type == G200_SE_B)

struct mga_device { @@ -181,6 +183,11 @@ struct mga_device { u32 unique_rev_id; };

+static inline enum mga_type +mgag200_type_from_driver_data(kernel_ulong_t driver_data) +{ + return (enum mga_type)(driver_data & MGAG200_TYPE_MASK); +} /* mgag200_mode.c */ int mgag200_modeset_init(struct mga_device *mdev); void mgag200_modeset_fini(struct mga_device *mdev); diff --git a/drivers/gpu/drm/mgag200/mgag200_main.c b/drivers/gpu/drm/mgag200/mgag200_main.c index 5f74aabcd3df..517c5693ad69 100644 --- a/drivers/gpu/drm/mgag200/mgag200_main.c +++ b/drivers/gpu/drm/mgag200/mgag200_main.c @@ -94,7 +94,7 @@ static int mgag200_device_init(struct drm_device *dev, struct mga_device *mdev = dev->dev_private; int ret, option;

- mdev->type = flags; + mdev->type = mgag200_type_from_driver_data(flags);

/* Hardcode the number of CRTCs to 1 */ mdev->num_crtc = 1;