On Tue, May 16, 2017 at 02:31:24PM -0700, Ben Widawsky wrote:
> This is the plumbing for supporting fb modifiers on planes. Modifiers
> have already been introduced to some extent, but this series will extend
> this to allow querying modifiers per plane. Based on this, the client to
> enable optimal modifications for framebuffers.
>
> This patch simply allows the DRM drivers to initialize their list of
> supported modifiers upon initializing the plane.
>
> v2: A minor addition from Daniel
>
> v3: Updated commit message
> s/INVALID/DRM_FORMAT_MOD_INVALID (Liviu)
> Remove some excess newlines (Liviu)
> Update comment for > 64 modifiers (Liviu)
>
> Cc: Liviu Dudau <liviu.du...@arm.com>
> Reviewed-by: Daniel Stone <dani...@collabora.com> (v2)
> Signed-off-by: Ben Widawsky <b...@bwidawsk.net>
Minor nits, see below, but otherwise:
Reviewed-by: Liviu Dudau <liviu.du...@arm.com>
Thanks,
Liviu
> ---
> drivers/gpu/drm/arc/arcpgu_crtc.c | 1 +
> drivers/gpu/drm/arm/hdlcd_crtc.c | 1 +
> drivers/gpu/drm/arm/malidp_planes.c | 2 +-
> drivers/gpu/drm/armada/armada_crtc.c | 1 +
> drivers/gpu/drm/armada/armada_overlay.c | 1 +
> drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c | 4 ++-
> drivers/gpu/drm/drm_modeset_helper.c | 1 +
> drivers/gpu/drm/drm_plane.c | 35
> ++++++++++++++++++++++++-
> drivers/gpu/drm/drm_simple_kms_helper.c | 3 +++
> drivers/gpu/drm/exynos/exynos_drm_plane.c | 2 +-
> drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c | 2 +-
> drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c | 1 +
> drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 2 +-
> drivers/gpu/drm/i915/intel_display.c | 5 +++-
> drivers/gpu/drm/i915/intel_sprite.c | 4 +--
> drivers/gpu/drm/imx/ipuv3-plane.c | 4 +--
> drivers/gpu/drm/mediatek/mtk_drm_plane.c | 2 +-
> drivers/gpu/drm/meson/meson_plane.c | 1 +
> drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c | 2 +-
> drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c | 4 +--
> drivers/gpu/drm/mxsfb/mxsfb_drv.c | 2 +-
> drivers/gpu/drm/nouveau/nv50_display.c | 5 ++--
> drivers/gpu/drm/omapdrm/omap_plane.c | 3 ++-
> drivers/gpu/drm/qxl/qxl_display.c | 2 +-
> drivers/gpu/drm/rcar-du/rcar_du_plane.c | 4 +--
> drivers/gpu/drm/rcar-du/rcar_du_vsp.c | 4 +--
> drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 4 +--
> drivers/gpu/drm/sti/sti_cursor.c | 2 +-
> drivers/gpu/drm/sti/sti_gdp.c | 2 +-
> drivers/gpu/drm/sti/sti_hqvdp.c | 2 +-
> drivers/gpu/drm/sun4i/sun4i_layer.c | 2 +-
> drivers/gpu/drm/tegra/dc.c | 12 ++++-----
> drivers/gpu/drm/vc4/vc4_plane.c | 2 +-
> drivers/gpu/drm/virtio/virtgpu_plane.c | 2 +-
> drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c | 4 +--
> drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c | 4 +--
> drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c | 4 +--
> drivers/gpu/drm/zte/zx_plane.c | 2 +-
> include/drm/drm_plane.h | 20 +++++++++++++-
> include/drm/drm_simple_kms_helper.h | 1 +
> include/uapi/drm/drm_fourcc.h | 11 ++++++++
> 41 files changed, 126 insertions(+), 46 deletions(-)
>
> diff --git a/drivers/gpu/drm/arc/arcpgu_crtc.c
> b/drivers/gpu/drm/arc/arcpgu_crtc.c
> index ad9a95916f1f..cd8a24c7c67d 100644
> --- a/drivers/gpu/drm/arc/arcpgu_crtc.c
> +++ b/drivers/gpu/drm/arc/arcpgu_crtc.c
> @@ -218,6 +218,7 @@ static struct drm_plane *arc_pgu_plane_init(struct
> drm_device *drm)
>
> ret = drm_universal_plane_init(drm, plane, 0xff, &arc_pgu_plane_funcs,
> formats, ARRAY_SIZE(formats),
> + NULL,
> DRM_PLANE_TYPE_PRIMARY, NULL);
> if (ret)
> return ERR_PTR(ret);
> diff --git a/drivers/gpu/drm/arm/hdlcd_crtc.c
> b/drivers/gpu/drm/arm/hdlcd_crtc.c
> index 798a3cc480a2..0caa03ae8708 100644
> --- a/drivers/gpu/drm/arm/hdlcd_crtc.c
> +++ b/drivers/gpu/drm/arm/hdlcd_crtc.c
> @@ -303,6 +303,7 @@ static struct drm_plane *hdlcd_plane_init(struct
> drm_device *drm)
>
> ret = drm_universal_plane_init(drm, plane, 0xff, &hdlcd_plane_funcs,
> formats, ARRAY_SIZE(formats),
> + NULL,
> DRM_PLANE_TYPE_PRIMARY, NULL);
> if (ret) {
> devm_kfree(drm->dev, plane);
> diff --git a/drivers/gpu/drm/arm/malidp_planes.c
> b/drivers/gpu/drm/arm/malidp_planes.c
> index 814fda23cead..b156610c68a5 100644
> --- a/drivers/gpu/drm/arm/malidp_planes.c
> +++ b/drivers/gpu/drm/arm/malidp_planes.c
> @@ -400,7 +400,7 @@ int malidp_de_planes_init(struct drm_device *drm)
> DRM_PLANE_TYPE_OVERLAY;
> ret = drm_universal_plane_init(drm, &plane->base, crtcs,
> &malidp_de_plane_funcs, formats,
> - n, plane_type, NULL);
> + n, NULL, plane_type, NULL);
> if (ret < 0)
> goto cleanup;
>
> diff --git a/drivers/gpu/drm/armada/armada_crtc.c
> b/drivers/gpu/drm/armada/armada_crtc.c
> index 4fe19fde84f9..ea48ef88f0e4 100644
> --- a/drivers/gpu/drm/armada/armada_crtc.c
> +++ b/drivers/gpu/drm/armada/armada_crtc.c
> @@ -1269,6 +1269,7 @@ static int armada_drm_crtc_create(struct drm_device
> *drm, struct device *dev,
> &armada_primary_plane_funcs,
> armada_primary_formats,
> ARRAY_SIZE(armada_primary_formats),
> + NULL,
> DRM_PLANE_TYPE_PRIMARY, NULL);
> if (ret) {
> kfree(primary);
> diff --git a/drivers/gpu/drm/armada/armada_overlay.c
> b/drivers/gpu/drm/armada/armada_overlay.c
> index 424e465ff407..0054144287ae 100644
> --- a/drivers/gpu/drm/armada/armada_overlay.c
> +++ b/drivers/gpu/drm/armada/armada_overlay.c
> @@ -460,6 +460,7 @@ int armada_overlay_plane_create(struct drm_device *dev,
> unsigned long crtcs)
> &armada_ovl_plane_funcs,
> armada_ovl_formats,
> ARRAY_SIZE(armada_ovl_formats),
> + NULL,
> DRM_PLANE_TYPE_OVERLAY, NULL);
> if (ret) {
> kfree(dplane);
> diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
> b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
> index 29cc10d053eb..b5c6cf2d8c36 100644
> --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
> +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c
> @@ -1058,7 +1058,9 @@ static int atmel_hlcdc_plane_create(struct drm_device
> *dev,
> ret = drm_universal_plane_init(dev, &plane->base, 0,
> &layer_plane_funcs,
> desc->formats->formats,
> - desc->formats->nformats, type, NULL);
> + desc->formats->nformats,
> + NULL,
> + type, NULL);
> if (ret)
> return ret;
>
> diff --git a/drivers/gpu/drm/drm_modeset_helper.c
> b/drivers/gpu/drm/drm_modeset_helper.c
> index 2b33825f2f93..9cb1eede0b4d 100644
> --- a/drivers/gpu/drm/drm_modeset_helper.c
> +++ b/drivers/gpu/drm/drm_modeset_helper.c
> @@ -124,6 +124,7 @@ static struct drm_plane *create_primary_plane(struct
> drm_device *dev)
> &drm_primary_helper_funcs,
> safe_modeset_formats,
> ARRAY_SIZE(safe_modeset_formats),
> + NULL,
> DRM_PLANE_TYPE_PRIMARY, NULL);
> if (ret) {
> kfree(primary);
> diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c
> index fedd4d60d9cd..20203871e06d 100644
> --- a/drivers/gpu/drm/drm_plane.c
> +++ b/drivers/gpu/drm/drm_plane.c
> @@ -70,6 +70,8 @@ static unsigned int drm_num_planes(struct drm_device *dev)
> * @funcs: callbacks for the new plane
> * @formats: array of supported formats (DRM_FORMAT\_\*)
> * @format_count: number of elements in @formats
> + * @format_modifiers: array of struct drm_format modifiers terminated by
> + * DRM_FORMAT_MOD_INVALID
> * @type: type of plane (overlay, primary, cursor)
> * @name: printf style format string for the plane name, or NULL for default
> name
> *
> @@ -82,10 +84,12 @@ int drm_universal_plane_init(struct drm_device *dev,
> struct drm_plane *plane,
> uint32_t possible_crtcs,
> const struct drm_plane_funcs *funcs,
> const uint32_t *formats, unsigned int format_count,
> + const uint64_t *format_modifiers,
> enum drm_plane_type type,
> const char *name, ...)
> {
> struct drm_mode_config *config = &dev->mode_config;
> + unsigned int format_modifier_count = 0;
> int ret;
>
> ret = drm_mode_object_add(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
> @@ -105,6 +109,30 @@ int drm_universal_plane_init(struct drm_device *dev,
> struct drm_plane *plane,
> return -ENOMEM;
> }
>
> + /* First driver to need more than 64 formats needs to fix this. Each
Kernel's style asks for multi-line comments to start with an empty /* line
> + * format is encoded as a bit and the current code only supports a u64.
> + */
> + if (WARN_ON(format_count > 64))
> + return -EINVAL;
> +
> + if (format_modifiers) {
> + const uint64_t *temp_modifiers = format_modifiers;
> + while (*temp_modifiers++ != DRM_FORMAT_MOD_INVALID)
> + format_modifier_count++;
> + }
> +
> + plane->modifier_count = format_modifier_count;
> + plane->modifiers = kmalloc_array(format_modifier_count,
> + sizeof(format_modifiers[0]),
> + GFP_KERNEL);
> +
> + if (format_modifier_count && !plane->modifiers) {
> + DRM_DEBUG_KMS("out of memory when allocating plane\n");
> + kfree(plane->format_types);
> + drm_mode_object_unregister(dev, &plane->base);
> + return -ENOMEM;
> + }
> +
> if (name) {
> va_list ap;
>
> @@ -117,12 +145,15 @@ int drm_universal_plane_init(struct drm_device *dev,
> struct drm_plane *plane,
> }
> if (!plane->name) {
> kfree(plane->format_types);
> + kfree(plane->modifiers);
> drm_mode_object_unregister(dev, &plane->base);
> return -ENOMEM;
> }
>
> memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
> plane->format_count = format_count;
> + memcpy(plane->modifiers, format_modifiers,
> + format_modifier_count * sizeof(format_modifiers[0]));
I'm still worried that we can reach the memcpy with a NULL format_modifiers and
we are opening
a security hole here.
> plane->possible_crtcs = possible_crtcs;
> plane->type = type;
>
> @@ -205,7 +236,8 @@ int drm_plane_init(struct drm_device *dev, struct
> drm_plane *plane,
>
> type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY;
> return drm_universal_plane_init(dev, plane, possible_crtcs, funcs,
> - formats, format_count, type, NULL);
> + formats, format_count,
> + NULL, type, NULL);
> }
> EXPORT_SYMBOL(drm_plane_init);
>
> @@ -224,6 +256,7 @@ void drm_plane_cleanup(struct drm_plane *plane)
> drm_modeset_lock_fini(&plane->mutex);
>
> kfree(plane->format_types);
> + kfree(plane->modifiers);
> drm_mode_object_unregister(dev, &plane->base);
>
> BUG_ON(list_empty(&plane->head));
> diff --git a/drivers/gpu/drm/drm_simple_kms_helper.c
> b/drivers/gpu/drm/drm_simple_kms_helper.c
> index e084f9f8ca66..949f0ab0e267 100644
> --- a/drivers/gpu/drm/drm_simple_kms_helper.c
> +++ b/drivers/gpu/drm/drm_simple_kms_helper.c
> @@ -193,6 +193,7 @@ EXPORT_SYMBOL(drm_simple_display_pipe_attach_bridge);
> * @funcs: callbacks for the display pipe (optional)
> * @formats: array of supported formats (DRM_FORMAT\_\*)
> * @format_count: number of elements in @formats
> + * @format_modifiers: array of formats modifiers
> * @connector: connector to attach and register (optional)
> *
> * Sets up a display pipeline which consist of a really simple
> @@ -213,6 +214,7 @@ int drm_simple_display_pipe_init(struct drm_device *dev,
> struct drm_simple_display_pipe *pipe,
> const struct drm_simple_display_pipe_funcs *funcs,
> const uint32_t *formats, unsigned int format_count,
> + const uint64_t *format_modifiers,
> struct drm_connector *connector)
> {
> struct drm_encoder *encoder = &pipe->encoder;
> @@ -227,6 +229,7 @@ int drm_simple_display_pipe_init(struct drm_device *dev,
> ret = drm_universal_plane_init(dev, plane, 0,
> &drm_simple_kms_plane_funcs,
> formats, format_count,
> + format_modifiers,
> DRM_PLANE_TYPE_PRIMARY, NULL);
> if (ret)
> return ret;
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_plane.c
> b/drivers/gpu/drm/exynos/exynos_drm_plane.c
> index c2f17f30afab..75d4928dd196 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_plane.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_plane.c
> @@ -284,7 +284,7 @@ int exynos_plane_init(struct drm_device *dev,
> &exynos_plane_funcs,
> config->pixel_formats,
> config->num_pixel_formats,
> - config->type, NULL);
> + NULL, config->type, NULL);
> if (err) {
> DRM_ERROR("failed to initialize plane\n");
> return err;
> diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c
> b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c
> index 0a20723aa6e1..9554b245746e 100644
> --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c
> +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c
> @@ -224,7 +224,7 @@ struct drm_plane *fsl_dcu_drm_primary_create_plane(struct
> drm_device *dev)
> &fsl_dcu_drm_plane_funcs,
> fsl_dcu_drm_plane_formats,
> ARRAY_SIZE(fsl_dcu_drm_plane_formats),
> - DRM_PLANE_TYPE_PRIMARY, NULL);
> + NULL, DRM_PLANE_TYPE_PRIMARY, NULL);
> if (ret) {
> kfree(primary);
> primary = NULL;
> diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c
> b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c
> index 59542bddc980..339e914cbaa3 100644
> --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c
> +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c
> @@ -181,6 +181,7 @@ static struct drm_plane *hibmc_plane_init(struct
> hibmc_drm_private *priv)
> ret = drm_universal_plane_init(dev, plane, 1, &hibmc_plane_funcs,
> channel_formats1,
> ARRAY_SIZE(channel_formats1),
> + NULL,
> DRM_PLANE_TYPE_PRIMARY,
> NULL);
> if (ret) {
> diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
> b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
> index c96c228a9898..1acb8af12246 100644
> --- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
> +++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
> @@ -909,7 +909,7 @@ static int ade_plane_init(struct drm_device *dev, struct
> ade_plane *aplane,
> return ret;
>
> ret = drm_universal_plane_init(dev, &aplane->base, 1, &ade_plane_funcs,
> - fmts, fmts_cnt, type, NULL);
> + fmts, fmts_cnt, NULL, type, NULL);
> if (ret) {
> DRM_ERROR("fail to init plane, ch=%d\n", aplane->ch);
> return ret;
> diff --git a/drivers/gpu/drm/i915/intel_display.c
> b/drivers/gpu/drm/i915/intel_display.c
> index 3617927af269..9dd67d51e7c9 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -13594,18 +13594,21 @@ intel_primary_plane_create(struct drm_i915_private
> *dev_priv, enum pipe pipe)
> ret = drm_universal_plane_init(&dev_priv->drm, &primary->base,
> 0, &intel_plane_funcs,
> intel_primary_formats,
> num_formats,
> + NULL,
> DRM_PLANE_TYPE_PRIMARY,
> "plane 1%c", pipe_name(pipe));
> else if (INTEL_GEN(dev_priv) >= 5 || IS_G4X(dev_priv))
> ret = drm_universal_plane_init(&dev_priv->drm, &primary->base,
> 0, &intel_plane_funcs,
> intel_primary_formats,
> num_formats,
> + NULL,
> DRM_PLANE_TYPE_PRIMARY,
> "primary %c", pipe_name(pipe));
> else
> ret = drm_universal_plane_init(&dev_priv->drm, &primary->base,
> 0, &intel_plane_funcs,
> intel_primary_formats,
> num_formats,
> + NULL,
> DRM_PLANE_TYPE_PRIMARY,
> "plane %c",
> plane_name(primary->plane));
> if (ret)
> @@ -13776,7 +13779,7 @@ intel_cursor_plane_create(struct drm_i915_private
> *dev_priv, enum pipe pipe)
> 0, &intel_cursor_plane_funcs,
> intel_cursor_formats,
> ARRAY_SIZE(intel_cursor_formats),
> - DRM_PLANE_TYPE_CURSOR,
> + NULL, DRM_PLANE_TYPE_CURSOR,
> "cursor %c", pipe_name(pipe));
> if (ret)
> goto fail;
> diff --git a/drivers/gpu/drm/i915/intel_sprite.c
> b/drivers/gpu/drm/i915/intel_sprite.c
> index f7d431427115..053802dd08c1 100644
> --- a/drivers/gpu/drm/i915/intel_sprite.c
> +++ b/drivers/gpu/drm/i915/intel_sprite.c
> @@ -1165,13 +1165,13 @@ intel_sprite_plane_create(struct drm_i915_private
> *dev_priv,
> ret = drm_universal_plane_init(&dev_priv->drm,
> &intel_plane->base,
> possible_crtcs,
> &intel_plane_funcs,
> plane_formats, num_plane_formats,
> - DRM_PLANE_TYPE_OVERLAY,
> + NULL, DRM_PLANE_TYPE_OVERLAY,
> "plane %d%c", plane + 2,
> pipe_name(pipe));
> else
> ret = drm_universal_plane_init(&dev_priv->drm,
> &intel_plane->base,
> possible_crtcs,
> &intel_plane_funcs,
> plane_formats, num_plane_formats,
> - DRM_PLANE_TYPE_OVERLAY,
> + NULL, DRM_PLANE_TYPE_OVERLAY,
> "sprite %c", sprite_name(pipe,
> plane));
> if (ret)
> goto fail;
> diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c
> b/drivers/gpu/drm/imx/ipuv3-plane.c
> index d63e853a0300..6c708c3b1cdc 100644
> --- a/drivers/gpu/drm/imx/ipuv3-plane.c
> +++ b/drivers/gpu/drm/imx/ipuv3-plane.c
> @@ -718,8 +718,8 @@ struct ipu_plane *ipu_plane_init(struct drm_device *dev,
> struct ipu_soc *ipu,
>
> ret = drm_universal_plane_init(dev, &ipu_plane->base, possible_crtcs,
> &ipu_plane_funcs, ipu_plane_formats,
> - ARRAY_SIZE(ipu_plane_formats), type,
> - NULL);
> + ARRAY_SIZE(ipu_plane_formats),
> + NULL, type, NULL);
> if (ret) {
> DRM_ERROR("failed to initialize plane\n");
> kfree(ipu_plane);
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
> b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
> index e405e89ed5e5..bec6d14dd070 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
> @@ -173,7 +173,7 @@ int mtk_plane_init(struct drm_device *dev, struct
> drm_plane *plane,
>
> err = drm_universal_plane_init(dev, plane, possible_crtcs,
> &mtk_plane_funcs, formats,
> - ARRAY_SIZE(formats), type, NULL);
> + ARRAY_SIZE(formats), NULL, type, NULL);
> if (err) {
> DRM_ERROR("failed to initialize plane\n");
> return err;
> diff --git a/drivers/gpu/drm/meson/meson_plane.c
> b/drivers/gpu/drm/meson/meson_plane.c
> index a32d3b6e2e12..17e96fa47868 100644
> --- a/drivers/gpu/drm/meson/meson_plane.c
> +++ b/drivers/gpu/drm/meson/meson_plane.c
> @@ -223,6 +223,7 @@ int meson_plane_create(struct meson_drm *priv)
> &meson_plane_funcs,
> supported_drm_formats,
> ARRAY_SIZE(supported_drm_formats),
> + NULL,
> DRM_PLANE_TYPE_PRIMARY, "meson_primary_plane");
>
> drm_plane_helper_add(plane, &meson_plane_helper_funcs);
> diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c
> b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c
> index 53619d07677e..8f3417e45d4e 100644
> --- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c
> +++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c
> @@ -398,7 +398,7 @@ struct drm_plane *mdp4_plane_init(struct drm_device *dev,
> type = private_plane ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY;
> ret = drm_universal_plane_init(dev, plane, 0xff, &mdp4_plane_funcs,
> mdp4_plane->formats, mdp4_plane->nformats,
> - type, NULL);
> + NULL, type, NULL);
> if (ret)
> goto fail;
>
> diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c
> b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c
> index a38c5fe6cc19..a815bc0e78d1 100644
> --- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c
> +++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_plane.c
> @@ -1140,12 +1140,12 @@ struct drm_plane *mdp5_plane_init(struct drm_device
> *dev,
> ret = drm_universal_plane_init(dev, plane, 0xff,
> &mdp5_cursor_plane_funcs,
> mdp5_plane->formats, mdp5_plane->nformats,
> - type, NULL);
> + NULL, type, NULL);
> else
> ret = drm_universal_plane_init(dev, plane, 0xff,
> &mdp5_plane_funcs,
> mdp5_plane->formats, mdp5_plane->nformats,
> - type, NULL);
> + NULL, type, NULL);
> if (ret)
> goto fail;
>
> diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.c
> b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
> index d1b9c34c7c00..3ee3784a54f4 100644
> --- a/drivers/gpu/drm/mxsfb/mxsfb_drv.c
> +++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.c
> @@ -190,7 +190,7 @@ static int mxsfb_load(struct drm_device *drm, unsigned
> long flags)
> }
>
> ret = drm_simple_display_pipe_init(drm, &mxsfb->pipe, &mxsfb_funcs,
> - mxsfb_formats, ARRAY_SIZE(mxsfb_formats),
> + mxsfb_formats, ARRAY_SIZE(mxsfb_formats), NULL, 0,
> &mxsfb->connector);
> if (ret < 0) {
> dev_err(drm->dev, "Cannot setup simple display pipe\n");
> diff --git a/drivers/gpu/drm/nouveau/nv50_display.c
> b/drivers/gpu/drm/nouveau/nv50_display.c
> index 0e58537352fe..dde71be463f8 100644
> --- a/drivers/gpu/drm/nouveau/nv50_display.c
> +++ b/drivers/gpu/drm/nouveau/nv50_display.c
> @@ -1084,8 +1084,9 @@ nv50_wndw_ctor(const struct nv50_wndw_func *func,
> struct drm_device *dev,
> wndw->func = func;
> wndw->dmac = dmac;
>
> - ret = drm_universal_plane_init(dev, &wndw->plane, 0, &nv50_wndw, format,
> - nformat, type, "%s-%d", name, index);
> + ret = drm_universal_plane_init(dev, &wndw->plane, 0, &nv50_wndw,
> + format, nformat, NULL,
> + type, "%s-%d", name, index);
> if (ret)
> return ret;
>
> diff --git a/drivers/gpu/drm/omapdrm/omap_plane.c
> b/drivers/gpu/drm/omapdrm/omap_plane.c
> index 9168154d749e..9b8341d77468 100644
> --- a/drivers/gpu/drm/omapdrm/omap_plane.c
> +++ b/drivers/gpu/drm/omapdrm/omap_plane.c
> @@ -370,7 +370,8 @@ struct drm_plane *omap_plane_init(struct drm_device *dev,
>
> ret = drm_universal_plane_init(dev, plane, possible_crtcs,
> &omap_plane_funcs, omap_plane->formats,
> - omap_plane->nformats, type, NULL);
> + omap_plane->nformats,
> + NULL, type, NULL);
> if (ret < 0)
> goto error;
>
> diff --git a/drivers/gpu/drm/qxl/qxl_display.c
> b/drivers/gpu/drm/qxl/qxl_display.c
> index 058340a002c2..fcf1d2034449 100644
> --- a/drivers/gpu/drm/qxl/qxl_display.c
> +++ b/drivers/gpu/drm/qxl/qxl_display.c
> @@ -788,7 +788,7 @@ static struct drm_plane *qxl_create_plane(struct
> qxl_device *qdev,
>
> err = drm_universal_plane_init(&qdev->ddev, plane, possible_crtcs,
> funcs, formats, num_formats,
> - type, NULL);
> + NULL, type, NULL);
> if (err)
> goto free_plane;
>
> diff --git a/drivers/gpu/drm/rcar-du/rcar_du_plane.c
> b/drivers/gpu/drm/rcar-du/rcar_du_plane.c
> index dcde6288da6c..2b02eccbfb70 100644
> --- a/drivers/gpu/drm/rcar-du/rcar_du_plane.c
> +++ b/drivers/gpu/drm/rcar-du/rcar_du_plane.c
> @@ -743,8 +743,8 @@ int rcar_du_planes_init(struct rcar_du_group *rgrp)
>
> ret = drm_universal_plane_init(rcdu->ddev, &plane->plane, crtcs,
> &rcar_du_plane_funcs, formats,
> - ARRAY_SIZE(formats), type,
> - NULL);
> + ARRAY_SIZE(formats),
> + NULL, type, NULL);
> if (ret < 0)
> return ret;
>
> diff --git a/drivers/gpu/drm/rcar-du/rcar_du_vsp.c
> b/drivers/gpu/drm/rcar-du/rcar_du_vsp.c
> index b0ff304ce3dc..e0c054f9b57a 100644
> --- a/drivers/gpu/drm/rcar-du/rcar_du_vsp.c
> +++ b/drivers/gpu/drm/rcar-du/rcar_du_vsp.c
> @@ -368,8 +368,8 @@ int rcar_du_vsp_init(struct rcar_du_vsp *vsp)
> 1 << vsp->index,
> &rcar_du_vsp_plane_funcs,
> formats_kms,
> - ARRAY_SIZE(formats_kms), type,
> - NULL);
> + ARRAY_SIZE(formats_kms),
> + NULL, type, NULL);
> if (ret < 0)
> return ret;
>
> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> index 3f7a82d1e095..d0cf57de9afc 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> @@ -1280,7 +1280,7 @@ static int vop_create_crtc(struct vop *vop)
> 0, &vop_plane_funcs,
> win_data->phy->data_formats,
> win_data->phy->nformats,
> - win_data->type, NULL);
> + NULL, win_data->type, NULL);
> if (ret) {
> DRM_DEV_ERROR(vop->dev, "failed to init plane %d\n",
> ret);
> @@ -1319,7 +1319,7 @@ static int vop_create_crtc(struct vop *vop)
> &vop_plane_funcs,
> win_data->phy->data_formats,
> win_data->phy->nformats,
> - win_data->type, NULL);
> + NULL, win_data->type, NULL);
> if (ret) {
> DRM_DEV_ERROR(vop->dev, "failed to init overlay %d\n",
> ret);
> diff --git a/drivers/gpu/drm/sti/sti_cursor.c
> b/drivers/gpu/drm/sti/sti_cursor.c
> index cca75bddb9ad..97c25e204bf4 100644
> --- a/drivers/gpu/drm/sti/sti_cursor.c
> +++ b/drivers/gpu/drm/sti/sti_cursor.c
> @@ -393,7 +393,7 @@ struct drm_plane *sti_cursor_create(struct drm_device
> *drm_dev,
> &sti_cursor_plane_helpers_funcs,
> cursor_supported_formats,
> ARRAY_SIZE(cursor_supported_formats),
> - DRM_PLANE_TYPE_CURSOR, NULL);
> + NULL, DRM_PLANE_TYPE_CURSOR, NULL);
> if (res) {
> DRM_ERROR("Failed to initialize universal plane\n");
> goto err_plane;
> diff --git a/drivers/gpu/drm/sti/sti_gdp.c b/drivers/gpu/drm/sti/sti_gdp.c
> index 88f16cdf6a4b..70391603c12d 100644
> --- a/drivers/gpu/drm/sti/sti_gdp.c
> +++ b/drivers/gpu/drm/sti/sti_gdp.c
> @@ -932,7 +932,7 @@ struct drm_plane *sti_gdp_create(struct drm_device
> *drm_dev,
> &sti_gdp_plane_helpers_funcs,
> gdp_supported_formats,
> ARRAY_SIZE(gdp_supported_formats),
> - type, NULL);
> + NULL, type, NULL);
> if (res) {
> DRM_ERROR("Failed to initialize universal plane\n");
> goto err;
> diff --git a/drivers/gpu/drm/sti/sti_hqvdp.c b/drivers/gpu/drm/sti/sti_hqvdp.c
> index 66f843148ef7..9a1ff352820d 100644
> --- a/drivers/gpu/drm/sti/sti_hqvdp.c
> +++ b/drivers/gpu/drm/sti/sti_hqvdp.c
> @@ -1296,7 +1296,7 @@ static struct drm_plane *sti_hqvdp_create(struct
> drm_device *drm_dev,
> &sti_hqvdp_plane_helpers_funcs,
> hqvdp_supported_formats,
> ARRAY_SIZE(hqvdp_supported_formats),
> - DRM_PLANE_TYPE_OVERLAY, NULL);
> + NULL, DRM_PLANE_TYPE_OVERLAY, NULL);
> if (res) {
> DRM_ERROR("Failed to initialize universal plane\n");
> return NULL;
> diff --git a/drivers/gpu/drm/sun4i/sun4i_layer.c
> b/drivers/gpu/drm/sun4i/sun4i_layer.c
> index f26bde5b9117..2d9f8d01ac2e 100644
> --- a/drivers/gpu/drm/sun4i/sun4i_layer.c
> +++ b/drivers/gpu/drm/sun4i/sun4i_layer.c
> @@ -115,7 +115,7 @@ static struct sun4i_layer *sun4i_layer_init_one(struct
> drm_device *drm,
> ret = drm_universal_plane_init(drm, &layer->plane, 0,
> &sun4i_backend_layer_funcs,
> plane->formats, plane->nformats,
> - plane->type, NULL);
> + NULL, plane->type, NULL);
> if (ret) {
> dev_err(drm->dev, "Couldn't initialize layer\n");
> return ERR_PTR(ret);
> diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
> index 95b373f739f2..0380edd054ac 100644
> --- a/drivers/gpu/drm/tegra/dc.c
> +++ b/drivers/gpu/drm/tegra/dc.c
> @@ -655,8 +655,8 @@ static struct drm_plane
> *tegra_dc_primary_plane_create(struct drm_device *drm,
>
> err = drm_universal_plane_init(drm, &plane->base, possible_crtcs,
> &tegra_primary_plane_funcs, formats,
> - num_formats, DRM_PLANE_TYPE_PRIMARY,
> - NULL);
> + num_formats, NULL,
> + DRM_PLANE_TYPE_PRIMARY, NULL);
> if (err < 0) {
> kfree(plane);
> return ERR_PTR(err);
> @@ -821,8 +821,8 @@ static struct drm_plane
> *tegra_dc_cursor_plane_create(struct drm_device *drm,
>
> err = drm_universal_plane_init(drm, &plane->base, 1 << dc->pipe,
> &tegra_cursor_plane_funcs, formats,
> - num_formats, DRM_PLANE_TYPE_CURSOR,
> - NULL);
> + num_formats, NULL,
> + DRM_PLANE_TYPE_CURSOR, NULL);
> if (err < 0) {
> kfree(plane);
> return ERR_PTR(err);
> @@ -883,8 +883,8 @@ static struct drm_plane
> *tegra_dc_overlay_plane_create(struct drm_device *drm,
>
> err = drm_universal_plane_init(drm, &plane->base, 1 << dc->pipe,
> &tegra_overlay_plane_funcs, formats,
> - num_formats, DRM_PLANE_TYPE_OVERLAY,
> - NULL);
> + num_formats, NULL,
> + DRM_PLANE_TYPE_OVERLAY, NULL);
> if (err < 0) {
> kfree(plane);
> return ERR_PTR(err);
> diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c
> index d34cd5393a9b..74b5e7afd6e9 100644
> --- a/drivers/gpu/drm/vc4/vc4_plane.c
> +++ b/drivers/gpu/drm/vc4/vc4_plane.c
> @@ -861,7 +861,7 @@ struct drm_plane *vc4_plane_init(struct drm_device *dev,
> ret = drm_universal_plane_init(dev, plane, 0,
> &vc4_plane_funcs,
> formats, num_formats,
> - type, NULL);
> + NULL, type, NULL);
>
> drm_plane_helper_add(plane, &vc4_plane_helper_funcs);
>
> diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c
> b/drivers/gpu/drm/virtio/virtgpu_plane.c
> index adcdbd0abef6..71ba455af915 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_plane.c
> +++ b/drivers/gpu/drm/virtio/virtgpu_plane.c
> @@ -298,7 +298,7 @@ struct drm_plane *virtio_gpu_plane_init(struct
> virtio_gpu_device *vgdev,
> ret = drm_universal_plane_init(dev, plane, 1 << index,
> &virtio_gpu_plane_funcs,
> formats, nformats,
> - type, NULL);
> + NULL, type, NULL);
> if (ret)
> goto err_plane_init;
>
> diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
> b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
> index d3987bcf53f8..6f0bf6f9c6f8 100644
> --- a/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
> +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
> @@ -439,7 +439,7 @@ static int vmw_ldu_init(struct vmw_private *dev_priv,
> unsigned unit)
> 0, &vmw_ldu_plane_funcs,
> vmw_primary_plane_formats,
> ARRAY_SIZE(vmw_primary_plane_formats),
> - DRM_PLANE_TYPE_PRIMARY, NULL);
> + NULL, DRM_PLANE_TYPE_PRIMARY, NULL);
> if (ret) {
> DRM_ERROR("Failed to initialize primary plane");
> goto err_free;
> @@ -454,7 +454,7 @@ static int vmw_ldu_init(struct vmw_private *dev_priv,
> unsigned unit)
> 0, &vmw_ldu_cursor_funcs,
> vmw_cursor_plane_formats,
> ARRAY_SIZE(vmw_cursor_plane_formats),
> - DRM_PLANE_TYPE_CURSOR, NULL);
> + NULL, DRM_PLANE_TYPE_CURSOR, NULL);
> if (ret) {
> DRM_ERROR("Failed to initialize cursor plane");
> drm_plane_cleanup(&ldu->base.primary);
> diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
> b/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
> index 8d7dc9def7c2..42780c9cb90f 100644
> --- a/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
> +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_scrn.c
> @@ -622,7 +622,7 @@ static int vmw_sou_init(struct vmw_private *dev_priv,
> unsigned unit)
> 0, &vmw_sou_plane_funcs,
> vmw_primary_plane_formats,
> ARRAY_SIZE(vmw_primary_plane_formats),
> - DRM_PLANE_TYPE_PRIMARY, NULL);
> + NULL, DRM_PLANE_TYPE_PRIMARY, NULL);
> if (ret) {
> DRM_ERROR("Failed to initialize primary plane");
> goto err_free;
> @@ -637,7 +637,7 @@ static int vmw_sou_init(struct vmw_private *dev_priv,
> unsigned unit)
> 0, &vmw_sou_cursor_funcs,
> vmw_cursor_plane_formats,
> ARRAY_SIZE(vmw_cursor_plane_formats),
> - DRM_PLANE_TYPE_CURSOR, NULL);
> + NULL, DRM_PLANE_TYPE_CURSOR, NULL);
> if (ret) {
> DRM_ERROR("Failed to initialize cursor plane");
> drm_plane_cleanup(&sou->base.primary);
> diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
> b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
> index bad31bdf09b6..f18fb966ce9c 100644
> --- a/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
> +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c
> @@ -1456,7 +1456,7 @@ static int vmw_stdu_init(struct vmw_private *dev_priv,
> unsigned unit)
> 0, &vmw_stdu_plane_funcs,
> vmw_primary_plane_formats,
> ARRAY_SIZE(vmw_primary_plane_formats),
> - DRM_PLANE_TYPE_PRIMARY, NULL);
> + NULL, DRM_PLANE_TYPE_PRIMARY, NULL);
> if (ret) {
> DRM_ERROR("Failed to initialize primary plane");
> goto err_free;
> @@ -1471,7 +1471,7 @@ static int vmw_stdu_init(struct vmw_private *dev_priv,
> unsigned unit)
> 0, &vmw_stdu_cursor_funcs,
> vmw_cursor_plane_formats,
> ARRAY_SIZE(vmw_cursor_plane_formats),
> - DRM_PLANE_TYPE_CURSOR, NULL);
> + NULL, DRM_PLANE_TYPE_CURSOR, NULL);
> if (ret) {
> DRM_ERROR("Failed to initialize cursor plane");
> drm_plane_cleanup(&stdu->base.primary);
> diff --git a/drivers/gpu/drm/zte/zx_plane.c b/drivers/gpu/drm/zte/zx_plane.c
> index d646ac931663..ea29fee01f7d 100644
> --- a/drivers/gpu/drm/zte/zx_plane.c
> +++ b/drivers/gpu/drm/zte/zx_plane.c
> @@ -539,7 +539,7 @@ int zx_plane_init(struct drm_device *drm, struct zx_plane
> *zplane,
>
> ret = drm_universal_plane_init(drm, plane, VOU_CRTC_MASK,
> &zx_plane_funcs, formats, format_count,
> - type, NULL);
> + NULL, type, NULL);
> if (ret) {
> DRM_DEV_ERROR(dev, "failed to init universal plane: %d\n", ret);
> return ret;
> diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h
> index 9ab3e7044812..2db5eed53d7b 100644
> --- a/include/drm/drm_plane.h
> +++ b/include/drm/drm_plane.h
> @@ -392,6 +392,20 @@ struct drm_plane_funcs {
> */
> void (*atomic_print_state)(struct drm_printer *p,
> const struct drm_plane_state *state);
> +
> + /**
> + * @format_mod_supported:
> + *
> + * This optional hook is used for the DRM to determine if the given
> + * format/modifier combination is valid for the plane. This allows the
> + * DRM to generate the correct format bitmask (which formats apply to
> + * which modifier).
> + *
Add a "Returns:" line here in the comment to match the style of the file's
comments.
> + * True if the given modifier is valid for that format on the plane.
> + * False otherwise.
> + */
> + bool (*format_mod_supported)(struct drm_plane *plane, uint32_t format,
> + uint64_t modifier);
> };
>
> /**
> @@ -487,6 +501,9 @@ struct drm_plane {
> unsigned int format_count;
> bool format_default;
>
> + uint64_t *modifiers;
> + unsigned int modifier_count;
> +
> struct drm_crtc *crtc;
> struct drm_framebuffer *fb;
>
> @@ -527,13 +544,14 @@ struct drm_plane {
>
> #define obj_to_plane(x) container_of(x, struct drm_plane, base)
>
> -__printf(8, 9)
> +__printf(9, 10)
> int drm_universal_plane_init(struct drm_device *dev,
> struct drm_plane *plane,
> uint32_t possible_crtcs,
> const struct drm_plane_funcs *funcs,
> const uint32_t *formats,
> unsigned int format_count,
> + const uint64_t *format_modifiers,
> enum drm_plane_type type,
> const char *name, ...);
> int drm_plane_init(struct drm_device *dev,
> diff --git a/include/drm/drm_simple_kms_helper.h
> b/include/drm/drm_simple_kms_helper.h
> index 2d36538e4a17..6d9adbb46293 100644
> --- a/include/drm/drm_simple_kms_helper.h
> +++ b/include/drm/drm_simple_kms_helper.h
> @@ -122,6 +122,7 @@ int drm_simple_display_pipe_init(struct drm_device *dev,
> struct drm_simple_display_pipe *pipe,
> const struct drm_simple_display_pipe_funcs *funcs,
> const uint32_t *formats, unsigned int format_count,
> + const uint64_t *format_modifiers,
> struct drm_connector *connector);
>
> #endif /* __LINUX_DRM_SIMPLE_KMS_HELPER_H */
> diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
> index 55e301047b3e..47f0175e29c0 100644
> --- a/include/uapi/drm/drm_fourcc.h
> +++ b/include/uapi/drm/drm_fourcc.h
> @@ -184,6 +184,8 @@ extern "C" {
> #define DRM_FORMAT_MOD_VENDOR_VIVANTE 0x06
> /* add more to the end as needed */
>
> +#define DRM_FORMAT_RESERVED ((1ULL << 56) - 1)
> +
> #define fourcc_mod_code(vendor, val) \
> ((((__u64)DRM_FORMAT_MOD_VENDOR_## vendor) << 56) | (val &
> 0x00ffffffffffffffULL))
>
> @@ -196,6 +198,15 @@ extern "C" {
> */
>
> /*
> + * Invalid Modifier
> + *
> + * This modifier can be used as a sentinel to terminate list, or to
> initialize a
s/terminate list/terminate the format modifiers list/
> + * variable with an invalid modifier. It might also be used to report an
> error
> + * back to userspace for certain APIs.
> + */
> +#define DRM_FORMAT_MOD_INVALID fourcc_mod_code(NONE,
> DRM_FORMAT_RESERVED)
> +
> +/*
> * Linear Layout
> *
> * Just plain linear layout. Note that this is different from no specifying
> any
> --
> 2.13.0
>
--
====================
| I would like to |
| fix the world, |
| but they're not |
| giving me the |
\ source code! /
---------------
¯\_(ツ)_/¯
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