From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ... --- drivers/gpu/drm/drm_simple_kms_helper.c | 456 ++++++++++++++++++++++++++++++++ 1 file changed, 456 insertions(+) create mode 100644 drivers/gpu/drm/drm_simple_kms_helper.c (limited to 'drivers/gpu/drm/drm_simple_kms_helper.c') diff --git a/drivers/gpu/drm/drm_simple_kms_helper.c b/drivers/gpu/drm/drm_simple_kms_helper.c new file mode 100644 index 000000000..3ef420ec4 --- /dev/null +++ b/drivers/gpu/drm/drm_simple_kms_helper.c @@ -0,0 +1,456 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) 2016 Noralf Trønnes + */ + +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +/** + * DOC: overview + * + * This helper library provides helpers for drivers for simple display + * hardware. + * + * drm_simple_display_pipe_init() initializes a simple display pipeline + * which has only one full-screen scanout buffer feeding one output. The + * pipeline is represented by &struct drm_simple_display_pipe and binds + * together &drm_plane, &drm_crtc and &drm_encoder structures into one fixed + * entity. Some flexibility for code reuse is provided through a separately + * allocated &drm_connector object and supporting optional &drm_bridge + * encoder drivers. + * + * Many drivers require only a very simple encoder that fulfills the minimum + * requirements of the display pipeline and does not add additional + * functionality. The function drm_simple_encoder_init() provides an + * implementation of such an encoder. + */ + +static const struct drm_encoder_funcs drm_simple_encoder_funcs_cleanup = { + .destroy = drm_encoder_cleanup, +}; + +/** + * drm_simple_encoder_init - Initialize a preallocated encoder with + * basic functionality. + * @dev: drm device + * @encoder: the encoder to initialize + * @encoder_type: user visible type of the encoder + * + * Initialises a preallocated encoder that has no further functionality. + * Settings for possible CRTC and clones are left to their initial values. + * The encoder will be cleaned up automatically as part of the mode-setting + * cleanup. + * + * The caller of drm_simple_encoder_init() is responsible for freeing + * the encoder's memory after the encoder has been cleaned up. At the + * moment this only works reliably if the encoder data structure is + * stored in the device structure. Free the encoder's memory as part of + * the device release function. + * + * Note: consider using drmm_simple_encoder_alloc() instead of + * drm_simple_encoder_init() to let the DRM managed resource infrastructure + * take care of cleanup and deallocation. + * + * Returns: + * Zero on success, error code on failure. + */ +int drm_simple_encoder_init(struct drm_device *dev, + struct drm_encoder *encoder, + int encoder_type) +{ + return drm_encoder_init(dev, encoder, + &drm_simple_encoder_funcs_cleanup, + encoder_type, NULL); +} +EXPORT_SYMBOL(drm_simple_encoder_init); + +void *__drmm_simple_encoder_alloc(struct drm_device *dev, size_t size, + size_t offset, int encoder_type) +{ + return __drmm_encoder_alloc(dev, size, offset, NULL, encoder_type, + NULL); +} +EXPORT_SYMBOL(__drmm_simple_encoder_alloc); + +static enum drm_mode_status +drm_simple_kms_crtc_mode_valid(struct drm_crtc *crtc, + const struct drm_display_mode *mode) +{ + struct drm_simple_display_pipe *pipe; + + pipe = container_of(crtc, struct drm_simple_display_pipe, crtc); + if (!pipe->funcs || !pipe->funcs->mode_valid) + /* Anything goes */ + return MODE_OK; + + return pipe->funcs->mode_valid(pipe, mode); +} + +static int drm_simple_kms_crtc_check(struct drm_crtc *crtc, + struct drm_atomic_state *state) +{ + struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state, crtc); + int ret; + + if (!crtc_state->enable) + goto out; + + ret = drm_atomic_helper_check_crtc_primary_plane(crtc_state); + if (ret) + return ret; + +out: + return drm_atomic_add_affected_planes(state, crtc); +} + +static void drm_simple_kms_crtc_enable(struct drm_crtc *crtc, + struct drm_atomic_state *state) +{ + struct drm_plane *plane; + struct drm_simple_display_pipe *pipe; + + pipe = container_of(crtc, struct drm_simple_display_pipe, crtc); + if (!pipe->funcs || !pipe->funcs->enable) + return; + + plane = &pipe->plane; + pipe->funcs->enable(pipe, crtc->state, plane->state); +} + +static void drm_simple_kms_crtc_disable(struct drm_crtc *crtc, + struct drm_atomic_state *state) +{ + struct drm_simple_display_pipe *pipe; + + pipe = container_of(crtc, struct drm_simple_display_pipe, crtc); + if (!pipe->funcs || !pipe->funcs->disable) + return; + + pipe->funcs->disable(pipe); +} + +static const struct drm_crtc_helper_funcs drm_simple_kms_crtc_helper_funcs = { + .mode_valid = drm_simple_kms_crtc_mode_valid, + .atomic_check = drm_simple_kms_crtc_check, + .atomic_enable = drm_simple_kms_crtc_enable, + .atomic_disable = drm_simple_kms_crtc_disable, +}; + +static void drm_simple_kms_crtc_reset(struct drm_crtc *crtc) +{ + struct drm_simple_display_pipe *pipe; + + pipe = container_of(crtc, struct drm_simple_display_pipe, crtc); + if (!pipe->funcs || !pipe->funcs->reset_crtc) + return drm_atomic_helper_crtc_reset(crtc); + + return pipe->funcs->reset_crtc(pipe); +} + +static struct drm_crtc_state *drm_simple_kms_crtc_duplicate_state(struct drm_crtc *crtc) +{ + struct drm_simple_display_pipe *pipe; + + pipe = container_of(crtc, struct drm_simple_display_pipe, crtc); + if (!pipe->funcs || !pipe->funcs->duplicate_crtc_state) + return drm_atomic_helper_crtc_duplicate_state(crtc); + + return pipe->funcs->duplicate_crtc_state(pipe); +} + +static void drm_simple_kms_crtc_destroy_state(struct drm_crtc *crtc, struct drm_crtc_state *state) +{ + struct drm_simple_display_pipe *pipe; + + pipe = container_of(crtc, struct drm_simple_display_pipe, crtc); + if (!pipe->funcs || !pipe->funcs->destroy_crtc_state) + drm_atomic_helper_crtc_destroy_state(crtc, state); + else + pipe->funcs->destroy_crtc_state(pipe, state); +} + +static int drm_simple_kms_crtc_enable_vblank(struct drm_crtc *crtc) +{ + struct drm_simple_display_pipe *pipe; + + pipe = container_of(crtc, struct drm_simple_display_pipe, crtc); + if (!pipe->funcs || !pipe->funcs->enable_vblank) + return 0; + + return pipe->funcs->enable_vblank(pipe); +} + +static void drm_simple_kms_crtc_disable_vblank(struct drm_crtc *crtc) +{ + struct drm_simple_display_pipe *pipe; + + pipe = container_of(crtc, struct drm_simple_display_pipe, crtc); + if (!pipe->funcs || !pipe->funcs->disable_vblank) + return; + + pipe->funcs->disable_vblank(pipe); +} + +static const struct drm_crtc_funcs drm_simple_kms_crtc_funcs = { + .reset = drm_simple_kms_crtc_reset, + .destroy = drm_crtc_cleanup, + .set_config = drm_atomic_helper_set_config, + .page_flip = drm_atomic_helper_page_flip, + .atomic_duplicate_state = drm_simple_kms_crtc_duplicate_state, + .atomic_destroy_state = drm_simple_kms_crtc_destroy_state, + .enable_vblank = drm_simple_kms_crtc_enable_vblank, + .disable_vblank = drm_simple_kms_crtc_disable_vblank, +}; + +static int drm_simple_kms_plane_atomic_check(struct drm_plane *plane, + struct drm_atomic_state *state) +{ + struct drm_plane_state *plane_state = drm_atomic_get_new_plane_state(state, + plane); + struct drm_simple_display_pipe *pipe; + struct drm_crtc_state *crtc_state; + int ret; + + pipe = container_of(plane, struct drm_simple_display_pipe, plane); + crtc_state = drm_atomic_get_new_crtc_state(state, + &pipe->crtc); + + ret = drm_atomic_helper_check_plane_state(plane_state, crtc_state, + DRM_PLANE_NO_SCALING, + DRM_PLANE_NO_SCALING, + false, false); + if (ret) + return ret; + + if (!plane_state->visible) + return 0; + + if (!pipe->funcs || !pipe->funcs->check) + return 0; + + return pipe->funcs->check(pipe, plane_state, crtc_state); +} + +static void drm_simple_kms_plane_atomic_update(struct drm_plane *plane, + struct drm_atomic_state *state) +{ + struct drm_plane_state *old_pstate = drm_atomic_get_old_plane_state(state, + plane); + struct drm_simple_display_pipe *pipe; + + pipe = container_of(plane, struct drm_simple_display_pipe, plane); + if (!pipe->funcs || !pipe->funcs->update) + return; + + pipe->funcs->update(pipe, old_pstate); +} + +static int drm_simple_kms_plane_prepare_fb(struct drm_plane *plane, + struct drm_plane_state *state) +{ + struct drm_simple_display_pipe *pipe; + + pipe = container_of(plane, struct drm_simple_display_pipe, plane); + if (!pipe->funcs || !pipe->funcs->prepare_fb) { + if (WARN_ON_ONCE(!drm_core_check_feature(plane->dev, DRIVER_GEM))) + return 0; + + WARN_ON_ONCE(pipe->funcs && pipe->funcs->cleanup_fb); + + return drm_gem_simple_display_pipe_prepare_fb(pipe, state); + } + + return pipe->funcs->prepare_fb(pipe, state); +} + +static void drm_simple_kms_plane_cleanup_fb(struct drm_plane *plane, + struct drm_plane_state *state) +{ + struct drm_simple_display_pipe *pipe; + + pipe = container_of(plane, struct drm_simple_display_pipe, plane); + if (!pipe->funcs || !pipe->funcs->cleanup_fb) + return; + + pipe->funcs->cleanup_fb(pipe, state); +} + +static int drm_simple_kms_plane_begin_fb_access(struct drm_plane *plane, + struct drm_plane_state *new_plane_state) +{ + struct drm_simple_display_pipe *pipe; + + pipe = container_of(plane, struct drm_simple_display_pipe, plane); + if (!pipe->funcs || !pipe->funcs->begin_fb_access) + return 0; + + return pipe->funcs->begin_fb_access(pipe, new_plane_state); +} + +static void drm_simple_kms_plane_end_fb_access(struct drm_plane *plane, + struct drm_plane_state *new_plane_state) +{ + struct drm_simple_display_pipe *pipe; + + pipe = container_of(plane, struct drm_simple_display_pipe, plane); + if (!pipe->funcs || !pipe->funcs->end_fb_access) + return; + + pipe->funcs->end_fb_access(pipe, new_plane_state); +} + +static bool drm_simple_kms_format_mod_supported(struct drm_plane *plane, + uint32_t format, + uint64_t modifier) +{ + return modifier == DRM_FORMAT_MOD_LINEAR; +} + +static const struct drm_plane_helper_funcs drm_simple_kms_plane_helper_funcs = { + .prepare_fb = drm_simple_kms_plane_prepare_fb, + .cleanup_fb = drm_simple_kms_plane_cleanup_fb, + .begin_fb_access = drm_simple_kms_plane_begin_fb_access, + .end_fb_access = drm_simple_kms_plane_end_fb_access, + .atomic_check = drm_simple_kms_plane_atomic_check, + .atomic_update = drm_simple_kms_plane_atomic_update, +}; + +static void drm_simple_kms_plane_reset(struct drm_plane *plane) +{ + struct drm_simple_display_pipe *pipe; + + pipe = container_of(plane, struct drm_simple_display_pipe, plane); + if (!pipe->funcs || !pipe->funcs->reset_plane) + return drm_atomic_helper_plane_reset(plane); + + return pipe->funcs->reset_plane(pipe); +} + +static struct drm_plane_state *drm_simple_kms_plane_duplicate_state(struct drm_plane *plane) +{ + struct drm_simple_display_pipe *pipe; + + pipe = container_of(plane, struct drm_simple_display_pipe, plane); + if (!pipe->funcs || !pipe->funcs->duplicate_plane_state) + return drm_atomic_helper_plane_duplicate_state(plane); + + return pipe->funcs->duplicate_plane_state(pipe); +} + +static void drm_simple_kms_plane_destroy_state(struct drm_plane *plane, + struct drm_plane_state *state) +{ + struct drm_simple_display_pipe *pipe; + + pipe = container_of(plane, struct drm_simple_display_pipe, plane); + if (!pipe->funcs || !pipe->funcs->destroy_plane_state) + drm_atomic_helper_plane_destroy_state(plane, state); + else + pipe->funcs->destroy_plane_state(pipe, state); +} + +static const struct drm_plane_funcs drm_simple_kms_plane_funcs = { + .update_plane = drm_atomic_helper_update_plane, + .disable_plane = drm_atomic_helper_disable_plane, + .destroy = drm_plane_cleanup, + .reset = drm_simple_kms_plane_reset, + .atomic_duplicate_state = drm_simple_kms_plane_duplicate_state, + .atomic_destroy_state = drm_simple_kms_plane_destroy_state, + .format_mod_supported = drm_simple_kms_format_mod_supported, +}; + +/** + * drm_simple_display_pipe_attach_bridge - Attach a bridge to the display pipe + * @pipe: simple display pipe object + * @bridge: bridge to attach + * + * Makes it possible to still use the drm_simple_display_pipe helpers when + * a DRM bridge has to be used. + * + * Note that you probably want to initialize the pipe by passing a NULL + * connector to drm_simple_display_pipe_init(). + * + * Returns: + * Zero on success, negative error code on failure. + */ +int drm_simple_display_pipe_attach_bridge(struct drm_simple_display_pipe *pipe, + struct drm_bridge *bridge) +{ + return drm_bridge_attach(&pipe->encoder, bridge, NULL, 0); +} +EXPORT_SYMBOL(drm_simple_display_pipe_attach_bridge); + +/** + * drm_simple_display_pipe_init - Initialize a simple display pipeline + * @dev: DRM device + * @pipe: simple display pipe object to initialize + * @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 + * plane-crtc-encoder pipe. + * + * If a connector is supplied, the pipe will be coupled with the provided + * connector. You may supply a NULL connector when using drm bridges, that + * handle connectors themselves (see drm_simple_display_pipe_attach_bridge()). + * + * Teardown of a simple display pipe is all handled automatically by the drm + * core through calling drm_mode_config_cleanup(). Drivers afterwards need to + * release the memory for the structure themselves. + * + * Returns: + * Zero on success, negative error code on failure. + */ +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; + struct drm_plane *plane = &pipe->plane; + struct drm_crtc *crtc = &pipe->crtc; + int ret; + + pipe->connector = connector; + pipe->funcs = funcs; + + drm_plane_helper_add(plane, &drm_simple_kms_plane_helper_funcs); + 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; + + drm_crtc_helper_add(crtc, &drm_simple_kms_crtc_helper_funcs); + ret = drm_crtc_init_with_planes(dev, crtc, plane, NULL, + &drm_simple_kms_crtc_funcs, NULL); + if (ret) + return ret; + + encoder->possible_crtcs = drm_crtc_mask(crtc); + ret = drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_NONE); + if (ret || !connector) + return ret; + + return drm_connector_attach_encoder(connector, encoder); +} +EXPORT_SYMBOL(drm_simple_display_pipe_init); + +MODULE_LICENSE("GPL"); -- cgit v1.2.3