Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

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().
  ...

1 files changed, 446 insertions, 0 deletions

diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h b/drivers/gpu/drm/mgag200/mgag200_drv.h
new file mode 100644
index 000000000..9e604dbb8
--- /dev/null
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.h
@@ -0,0 +1,446 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright 2010 Matt Turner.
+ * Copyright 2012 Red Hat
+ *
+ * Authors: Matthew Garrett
+ * 	    Matt Turner
+ *	    Dave Airlie
+ */
+#ifndef __MGAG200_DRV_H__
+#define __MGAG200_DRV_H__
+
+#include <linux/i2c-algo-bit.h>
+#include <linux/i2c.h>
+
+#include <video/vga.h>
+
+#include <drm/drm_connector.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_encoder.h>
+#include <drm/drm_gem.h>
+#include <drm/drm_gem_shmem_helper.h>
+#include <drm/drm_plane.h>
+
+#include "mgag200_reg.h"
+
+#define DRIVER_AUTHOR		"Matthew Garrett"
+
+#define DRIVER_NAME		"mgag200"
+#define DRIVER_DESC		"MGA G200 SE"
+#define DRIVER_DATE		"20110418"
+
+#define DRIVER_MAJOR		1
+#define DRIVER_MINOR		0
+#define DRIVER_PATCHLEVEL	0
+
+#define RREG8(reg) ioread8(((void __iomem *)mdev->rmmio) + (reg))
+#define WREG8(reg, v) iowrite8(v, ((void __iomem *)mdev->rmmio) + (reg))
+#define RREG32(reg) ioread32(((void __iomem *)mdev->rmmio) + (reg))
+#define WREG32(reg, v) iowrite32(v, ((void __iomem *)mdev->rmmio) + (reg))
+
+#define MGA_BIOS_OFFSET		0x7ffc
+
+#define ATTR_INDEX 0x1fc0
+#define ATTR_DATA 0x1fc1
+
+#define WREG_MISC(v)						\
+	WREG8(MGA_MISC_OUT, v)
+
+#define RREG_MISC(v)						\
+	((v) = RREG8(MGA_MISC_IN))
+
+#define WREG_MISC_MASKED(v, mask)				\
+	do {							\
+		u8 misc_;					\
+		u8 mask_ = (mask);				\
+		RREG_MISC(misc_);				\
+		misc_ &= ~mask_;				\
+		misc_ |= ((v) & mask_);				\
+		WREG_MISC(misc_);				\
+	} while (0)
+
+#define WREG_ATTR(reg, v)					\
+	do {							\
+		RREG8(0x1fda);					\
+		WREG8(ATTR_INDEX, reg);				\
+		WREG8(ATTR_DATA, v);				\
+	} while (0)						\
+
+#define RREG_SEQ(reg, v)					\
+	do {							\
+		WREG8(MGAREG_SEQ_INDEX, reg);			\
+		v = RREG8(MGAREG_SEQ_DATA);			\
+	} while (0)						\
+
+#define WREG_SEQ(reg, v)					\
+	do {							\
+		WREG8(MGAREG_SEQ_INDEX, reg);			\
+		WREG8(MGAREG_SEQ_DATA, v);			\
+	} while (0)						\
+
+#define RREG_CRT(reg, v)					\
+	do {							\
+		WREG8(MGAREG_CRTC_INDEX, reg);			\
+		v = RREG8(MGAREG_CRTC_DATA);			\
+	} while (0)						\
+
+#define WREG_CRT(reg, v)					\
+	do {							\
+		WREG8(MGAREG_CRTC_INDEX, reg);			\
+		WREG8(MGAREG_CRTC_DATA, v);			\
+	} while (0)						\
+
+#define RREG_ECRT(reg, v)					\
+	do {							\
+		WREG8(MGAREG_CRTCEXT_INDEX, reg);		\
+		v = RREG8(MGAREG_CRTCEXT_DATA);			\
+	} while (0)						\
+
+#define WREG_ECRT(reg, v)					\
+	do {							\
+		WREG8(MGAREG_CRTCEXT_INDEX, reg);				\
+		WREG8(MGAREG_CRTCEXT_DATA, v);				\
+	} while (0)						\
+
+#define GFX_INDEX 0x1fce
+#define GFX_DATA 0x1fcf
+
+#define WREG_GFX(reg, v)					\
+	do {							\
+		WREG8(GFX_INDEX, reg);				\
+		WREG8(GFX_DATA, v);				\
+	} while (0)						\
+
+#define DAC_INDEX 0x3c00
+#define DAC_DATA 0x3c0a
+
+#define WREG_DAC(reg, v)					\
+	do {							\
+		WREG8(DAC_INDEX, reg);				\
+		WREG8(DAC_DATA, v);				\
+	} while (0)						\
+
+#define MGA_MISC_OUT 0x1fc2
+#define MGA_MISC_IN 0x1fcc
+
+/*
+ * TODO: This is a pretty large set of default values for all kinds of
+ *       settings. It should be split and set in the various DRM helpers,
+ *       such as the CRTC reset or atomic_enable helpers. The PLL values
+ *       probably belong to each model's PLL code.
+ */
+#define MGAG200_DAC_DEFAULT(xvrefctrl, xpixclkctrl, xmiscctrl, xsyspllm, xsysplln, xsyspllp)	\
+	/* 0x00: */        0,    0,    0,    0,    0,    0, 0x00,    0,				\
+	/* 0x08: */        0,    0,    0,    0,    0,    0,    0,    0,				\
+	/* 0x10: */        0,    0,    0,    0,    0,    0,    0,    0,				\
+	/* 0x18: */     (xvrefctrl),								\
+	/* 0x19: */        0,									\
+	/* 0x1a: */     (xpixclkctrl),								\
+	/* 0x1b: */     0xff, 0xbf, 0x20,							\
+	/* 0x1e: */	(xmiscctrl),								\
+	/* 0x1f: */	0x20,									\
+	/* 0x20: */     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,				\
+	/* 0x28: */     0x00, 0x00, 0x00, 0x00,							\
+	/* 0x2c: */     (xsyspllm),								\
+	/* 0x2d: */     (xsysplln),								\
+	/* 0x2e: */     (xsyspllp),								\
+	/* 0x2f: */     0x40,									\
+	/* 0x30: */     0x00, 0xb0, 0x00, 0xc2, 0x34, 0x14, 0x02, 0x83,				\
+	/* 0x38: */     0x00, 0x93, 0x00, 0x77, 0x00, 0x00, 0x00, 0x3a,				\
+	/* 0x40: */        0,    0,    0,    0,    0,    0,    0,    0,				\
+	/* 0x48: */        0,    0,    0,    0,    0,    0,    0,    0				\
+
+#define MGAG200_LUT_SIZE 256
+
+#define MGAG200_MAX_FB_HEIGHT 4096
+#define MGAG200_MAX_FB_WIDTH 4096
+
+struct mga_device;
+
+/*
+ * Stores parameters for programming the PLLs
+ *
+ * Fref: reference frequency (A: 25.175 Mhz, B: 28.361, C: XX Mhz)
+ * Fo: output frequency
+ * Fvco = Fref * (N / M)
+ * Fo = Fvco / P
+ *
+ * S = [0..3]
+ */
+struct mgag200_pll_values {
+	unsigned int m;
+	unsigned int n;
+	unsigned int p;
+	unsigned int s;
+};
+
+struct mgag200_crtc_state {
+	struct drm_crtc_state base;
+
+	/* Primary-plane format; required for modesetting and color mgmt. */
+	const struct drm_format_info *format;
+
+	struct mgag200_pll_values pixpllc;
+};
+
+static inline struct mgag200_crtc_state *to_mgag200_crtc_state(struct drm_crtc_state *base)
+{
+	return container_of(base, struct mgag200_crtc_state, base);
+}
+
+struct mga_i2c_chan {
+	struct i2c_adapter adapter;
+	struct drm_device *dev;
+	struct i2c_algo_bit_data bit;
+	int data, clock;
+};
+
+enum mga_type {
+	G200_PCI,
+	G200_AGP,
+	G200_SE_A,
+	G200_SE_B,
+	G200_WB,
+	G200_EV,
+	G200_EH,
+	G200_EH3,
+	G200_ER,
+	G200_EW3,
+};
+
+struct mgag200_device_info {
+	u16 max_hdisplay;
+	u16 max_vdisplay;
+
+	/*
+	 * Maximum memory bandwidth (MiB/sec). Setting this to zero disables
+	 * the rsp test during mode validation.
+	 */
+	unsigned long max_mem_bandwidth;
+
+	/* HW has external source (e.g., BMC) to synchronize with */
+	bool has_vidrst:1;
+
+	struct {
+		unsigned data_bit:3;
+		unsigned clock_bit:3;
+	} i2c;
+
+	/*
+	 * HW does not handle 'startadd' register correctly. Always set
+	 * it's value to 0.
+	 */
+	bool bug_no_startadd:1;
+};
+
+#define MGAG200_DEVICE_INFO_INIT(_max_hdisplay, _max_vdisplay, _max_mem_bandwidth, \
+				 _has_vidrst, _i2c_data_bit, _i2c_clock_bit, \
+				 _bug_no_startadd) \
+	{ \
+		.max_hdisplay = (_max_hdisplay), \
+		.max_vdisplay = (_max_vdisplay), \
+		.max_mem_bandwidth = (_max_mem_bandwidth), \
+		.has_vidrst = (_has_vidrst), \
+		.i2c = { \
+			.data_bit = (_i2c_data_bit), \
+			.clock_bit = (_i2c_clock_bit), \
+		}, \
+		.bug_no_startadd = (_bug_no_startadd), \
+	}
+
+struct mgag200_device_funcs {
+	/*
+	 * Disables an external reset source (i.e., BMC) before programming
+	 * a new display mode.
+	 */
+	void (*disable_vidrst)(struct mga_device *mdev);
+
+	/*
+	 * Enables an external reset source (i.e., BMC) after programming
+	 * a new display mode.
+	 */
+	void (*enable_vidrst)(struct mga_device *mdev);
+
+	/*
+	 * Validate that the given state can be programmed into PIXPLLC. On
+	 * success, the calculated parameters should be stored in the CRTC's
+	 * state in struct @mgag200_crtc_state.pixpllc.
+	 */
+	int (*pixpllc_atomic_check)(struct drm_crtc *crtc, struct drm_atomic_state *new_state);
+
+	/*
+	 * Program PIXPLLC from the CRTC state. The parameters should have been
+	 * stored in struct @mgag200_crtc_state.pixpllc by the corresponding
+	 * implementation of @pixpllc_atomic_check.
+	 */
+	void (*pixpllc_atomic_update)(struct drm_crtc *crtc, struct drm_atomic_state *old_state);
+};
+
+struct mga_device {
+	struct drm_device base;
+
+	const struct mgag200_device_info *info;
+	const struct mgag200_device_funcs *funcs;
+
+	struct resource			*rmmio_res;
+	void __iomem			*rmmio;
+	struct mutex			rmmio_lock; /* Protects access to rmmio */
+
+	struct resource			*vram_res;
+	void __iomem			*vram;
+	resource_size_t			vram_available;
+
+	struct drm_plane primary_plane;
+	struct drm_crtc crtc;
+	struct drm_encoder encoder;
+	struct mga_i2c_chan i2c;
+	struct drm_connector connector;
+};
+
+static inline struct mga_device *to_mga_device(struct drm_device *dev)
+{
+	return container_of(dev, struct mga_device, base);
+}
+
+struct mgag200_g200_device {
+	struct mga_device base;
+
+	/* PLL constants */
+	long ref_clk;
+	long pclk_min;
+	long pclk_max;
+};
+
+static inline struct mgag200_g200_device *to_mgag200_g200_device(struct drm_device *dev)
+{
+	return container_of(to_mga_device(dev), struct mgag200_g200_device, base);
+}
+
+struct mgag200_g200se_device {
+	struct mga_device base;
+
+	/* SE model number stored in reg 0x1e24 */
+	u32 unique_rev_id;
+};
+
+static inline struct mgag200_g200se_device *to_mgag200_g200se_device(struct drm_device *dev)
+{
+	return container_of(to_mga_device(dev), struct mgag200_g200se_device, base);
+}
+
+				/* mgag200_drv.c */
+int mgag200_init_pci_options(struct pci_dev *pdev, u32 option, u32 option2);
+resource_size_t mgag200_probe_vram(void __iomem *mem, resource_size_t size);
+resource_size_t mgag200_device_probe_vram(struct mga_device *mdev);
+int mgag200_device_preinit(struct mga_device *mdev);
+int mgag200_device_init(struct mga_device *mdev,
+			const struct mgag200_device_info *info,
+			const struct mgag200_device_funcs *funcs);
+
+				/* mgag200_<device type>.c */
+struct mga_device *mgag200_g200_device_create(struct pci_dev *pdev, const struct drm_driver *drv);
+struct mga_device *mgag200_g200se_device_create(struct pci_dev *pdev, const struct drm_driver *drv,
+						enum mga_type type);
+void mgag200_g200wb_init_registers(struct mga_device *mdev);
+void mgag200_g200wb_pixpllc_atomic_update(struct drm_crtc *crtc, struct drm_atomic_state *old_state);
+struct mga_device *mgag200_g200wb_device_create(struct pci_dev *pdev, const struct drm_driver *drv);
+struct mga_device *mgag200_g200ev_device_create(struct pci_dev *pdev, const struct drm_driver *drv);
+void mgag200_g200eh_init_registers(struct mga_device *mdev);
+void mgag200_g200eh_pixpllc_atomic_update(struct drm_crtc *crtc, struct drm_atomic_state *old_state);
+struct mga_device *mgag200_g200eh_device_create(struct pci_dev *pdev,
+						const struct drm_driver *drv);
+struct mga_device *mgag200_g200eh3_device_create(struct pci_dev *pdev,
+						 const struct drm_driver *drv);
+struct mga_device *mgag200_g200er_device_create(struct pci_dev *pdev,
+						const struct drm_driver *drv);
+struct mga_device *mgag200_g200ew3_device_create(struct pci_dev *pdev,
+						 const struct drm_driver *drv);
+
+/*
+ * mgag200_mode.c
+ */
+
+struct drm_crtc;
+struct drm_crtc_state;
+struct drm_display_mode;
+struct drm_plane;
+struct drm_atomic_state;
+
+extern const uint32_t mgag200_primary_plane_formats[];
+extern const size_t   mgag200_primary_plane_formats_size;
+extern const uint64_t mgag200_primary_plane_fmtmods[];
+
+int mgag200_primary_plane_helper_atomic_check(struct drm_plane *plane,
+					      struct drm_atomic_state *new_state);
+void mgag200_primary_plane_helper_atomic_update(struct drm_plane *plane,
+						struct drm_atomic_state *old_state);
+void mgag200_primary_plane_helper_atomic_disable(struct drm_plane *plane,
+						 struct drm_atomic_state *old_state);
+#define MGAG200_PRIMARY_PLANE_HELPER_FUNCS \
+	DRM_GEM_SHADOW_PLANE_HELPER_FUNCS, \
+	.atomic_check = mgag200_primary_plane_helper_atomic_check, \
+	.atomic_update = mgag200_primary_plane_helper_atomic_update, \
+	.atomic_disable = mgag200_primary_plane_helper_atomic_disable
+
+#define MGAG200_PRIMARY_PLANE_FUNCS \
+	.update_plane = drm_atomic_helper_update_plane, \
+	.disable_plane = drm_atomic_helper_disable_plane, \
+	.destroy = drm_plane_cleanup, \
+	DRM_GEM_SHADOW_PLANE_FUNCS
+
+enum drm_mode_status mgag200_crtc_helper_mode_valid(struct drm_crtc *crtc,
+						    const struct drm_display_mode *mode);
+int mgag200_crtc_helper_atomic_check(struct drm_crtc *crtc, struct drm_atomic_state *new_state);
+void mgag200_crtc_helper_atomic_flush(struct drm_crtc *crtc, struct drm_atomic_state *old_state);
+void mgag200_crtc_helper_atomic_enable(struct drm_crtc *crtc, struct drm_atomic_state *old_state);
+void mgag200_crtc_helper_atomic_disable(struct drm_crtc *crtc, struct drm_atomic_state *old_state);
+
+#define MGAG200_CRTC_HELPER_FUNCS \
+	.mode_valid = mgag200_crtc_helper_mode_valid, \
+	.atomic_check = mgag200_crtc_helper_atomic_check, \
+	.atomic_flush = mgag200_crtc_helper_atomic_flush, \
+	.atomic_enable = mgag200_crtc_helper_atomic_enable, \
+	.atomic_disable = mgag200_crtc_helper_atomic_disable
+
+void mgag200_crtc_reset(struct drm_crtc *crtc);
+struct drm_crtc_state *mgag200_crtc_atomic_duplicate_state(struct drm_crtc *crtc);
+void mgag200_crtc_atomic_destroy_state(struct drm_crtc *crtc, struct drm_crtc_state *crtc_state);
+
+#define MGAG200_CRTC_FUNCS \
+	.reset = mgag200_crtc_reset, \
+	.destroy = drm_crtc_cleanup, \
+	.set_config = drm_atomic_helper_set_config, \
+	.page_flip = drm_atomic_helper_page_flip, \
+	.atomic_duplicate_state = mgag200_crtc_atomic_duplicate_state, \
+	.atomic_destroy_state = mgag200_crtc_atomic_destroy_state
+
+#define MGAG200_DAC_ENCODER_FUNCS \
+	.destroy = drm_encoder_cleanup
+
+int mgag200_vga_connector_helper_get_modes(struct drm_connector *connector);
+
+#define MGAG200_VGA_CONNECTOR_HELPER_FUNCS \
+	.get_modes  = mgag200_vga_connector_helper_get_modes
+
+#define MGAG200_VGA_CONNECTOR_FUNCS \
+	.reset                  = drm_atomic_helper_connector_reset, \
+	.fill_modes             = drm_helper_probe_single_connector_modes, \
+	.destroy                = drm_connector_cleanup, \
+	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, \
+	.atomic_destroy_state   = drm_atomic_helper_connector_destroy_state
+
+void mgag200_set_mode_regs(struct mga_device *mdev, const struct drm_display_mode *mode);
+void mgag200_set_format_regs(struct mga_device *mdev, const struct drm_format_info *format);
+void mgag200_enable_display(struct mga_device *mdev);
+void mgag200_init_registers(struct mga_device *mdev);
+int mgag200_mode_config_init(struct mga_device *mdev, resource_size_t vram_available);
+
+				/* mgag200_bmc.c */
+void mgag200_bmc_disable_vidrst(struct mga_device *mdev);
+void mgag200_bmc_enable_vidrst(struct mga_device *mdev);
+
+				/* mgag200_i2c.c */
+int mgag200_i2c_init(struct mga_device *mdev, struct mga_i2c_chan *i2c);
+
+#endif				/* __MGAG200_DRV_H__ */