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, 310 insertions, 0 deletions

diff --git a/drivers/gpu/drm/shmobile/shmob_drm_regs.h b/drivers/gpu/drm/shmobile/shmob_drm_regs.h
new file mode 100644
index 000000000..058533685
--- /dev/null
+++ b/drivers/gpu/drm/shmobile/shmob_drm_regs.h
@@ -0,0 +1,310 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * shmob_drm_regs.h  --  SH Mobile DRM registers
+ *
+ * Copyright (C) 2012 Renesas Electronics Corporation
+ *
+ * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
+ */
+
+#ifndef __SHMOB_DRM_REGS_H__
+#define __SHMOB_DRM_REGS_H__
+
+#include <linux/io.h>
+#include <linux/jiffies.h>
+
+#include "shmob_drm_drv.h"
+
+/* Register definitions */
+#define LDDCKPAT1R		0x400
+#define LDDCKPAT2R		0x404
+#define LDDCKR			0x410
+#define LDDCKR_ICKSEL_BUS	(0 << 16)
+#define LDDCKR_ICKSEL_MIPI	(1 << 16)
+#define LDDCKR_ICKSEL_HDMI	(2 << 16)
+#define LDDCKR_ICKSEL_EXT	(3 << 16)
+#define LDDCKR_ICKSEL_MASK	(7 << 16)
+#define LDDCKR_MOSEL		(1 << 6)
+#define LDDCKSTPR		0x414
+#define LDDCKSTPR_DCKSTS	(1 << 16)
+#define LDDCKSTPR_DCKSTP	(1 << 0)
+#define LDMT1R			0x418
+#define LDMT1R_VPOL		(1 << 28)
+#define LDMT1R_HPOL		(1 << 27)
+#define LDMT1R_DWPOL		(1 << 26)
+#define LDMT1R_DIPOL		(1 << 25)
+#define LDMT1R_DAPOL		(1 << 24)
+#define LDMT1R_HSCNT		(1 << 17)
+#define LDMT1R_DWCNT		(1 << 16)
+#define LDMT1R_IFM		(1 << 12)
+#define LDMT1R_MIFTYP_RGB8	(0x0 << 0)
+#define LDMT1R_MIFTYP_RGB9	(0x4 << 0)
+#define LDMT1R_MIFTYP_RGB12A	(0x5 << 0)
+#define LDMT1R_MIFTYP_RGB12B	(0x6 << 0)
+#define LDMT1R_MIFTYP_RGB16	(0x7 << 0)
+#define LDMT1R_MIFTYP_RGB18	(0xa << 0)
+#define LDMT1R_MIFTYP_RGB24	(0xb << 0)
+#define LDMT1R_MIFTYP_YCBCR	(0xf << 0)
+#define LDMT1R_MIFTYP_SYS8A	(0x0 << 0)
+#define LDMT1R_MIFTYP_SYS8B	(0x1 << 0)
+#define LDMT1R_MIFTYP_SYS8C	(0x2 << 0)
+#define LDMT1R_MIFTYP_SYS8D	(0x3 << 0)
+#define LDMT1R_MIFTYP_SYS9	(0x4 << 0)
+#define LDMT1R_MIFTYP_SYS12	(0x5 << 0)
+#define LDMT1R_MIFTYP_SYS16A	(0x7 << 0)
+#define LDMT1R_MIFTYP_SYS16B	(0x8 << 0)
+#define LDMT1R_MIFTYP_SYS16C	(0x9 << 0)
+#define LDMT1R_MIFTYP_SYS18	(0xa << 0)
+#define LDMT1R_MIFTYP_SYS24	(0xb << 0)
+#define LDMT1R_MIFTYP_MASK	(0xf << 0)
+#define LDMT2R			0x41c
+#define LDMT2R_CSUP_MASK	(7 << 26)
+#define LDMT2R_CSUP_SHIFT	26
+#define LDMT2R_RSV		(1 << 25)
+#define LDMT2R_VSEL		(1 << 24)
+#define LDMT2R_WCSC_MASK	(0xff << 16)
+#define LDMT2R_WCSC_SHIFT	16
+#define LDMT2R_WCEC_MASK	(0xff << 8)
+#define LDMT2R_WCEC_SHIFT	8
+#define LDMT2R_WCLW_MASK	(0xff << 0)
+#define LDMT2R_WCLW_SHIFT	0
+#define LDMT3R			0x420
+#define LDMT3R_RDLC_MASK	(0x3f << 24)
+#define LDMT3R_RDLC_SHIFT	24
+#define LDMT3R_RCSC_MASK	(0xff << 16)
+#define LDMT3R_RCSC_SHIFT	16
+#define LDMT3R_RCEC_MASK	(0xff << 8)
+#define LDMT3R_RCEC_SHIFT	8
+#define LDMT3R_RCLW_MASK	(0xff << 0)
+#define LDMT3R_RCLW_SHIFT	0
+#define LDDFR			0x424
+#define LDDFR_CF1		(1 << 18)
+#define LDDFR_CF0		(1 << 17)
+#define LDDFR_CC		(1 << 16)
+#define LDDFR_YF_420		(0 << 8)
+#define LDDFR_YF_422		(1 << 8)
+#define LDDFR_YF_444		(2 << 8)
+#define LDDFR_YF_MASK		(3 << 8)
+#define LDDFR_PKF_ARGB32	(0x00 << 0)
+#define LDDFR_PKF_RGB16		(0x03 << 0)
+#define LDDFR_PKF_RGB24		(0x0b << 0)
+#define LDDFR_PKF_MASK		(0x1f << 0)
+#define LDSM1R			0x428
+#define LDSM1R_OS		(1 << 0)
+#define LDSM2R			0x42c
+#define LDSM2R_OSTRG		(1 << 0)
+#define LDSA1R			0x430
+#define LDSA2R			0x434
+#define LDMLSR			0x438
+#define LDWBFR			0x43c
+#define LDWBCNTR		0x440
+#define LDWBAR			0x444
+#define LDHCNR			0x448
+#define LDHSYNR			0x44c
+#define LDVLNR			0x450
+#define LDVSYNR			0x454
+#define LDHPDR			0x458
+#define LDVPDR			0x45c
+#define LDPMR			0x460
+#define LDPMR_LPS		(3 << 0)
+#define LDINTR			0x468
+#define LDINTR_FE		(1 << 10)
+#define LDINTR_VSE		(1 << 9)
+#define LDINTR_VEE		(1 << 8)
+#define LDINTR_FS		(1 << 2)
+#define LDINTR_VSS		(1 << 1)
+#define LDINTR_VES		(1 << 0)
+#define LDINTR_STATUS_MASK	(0xff << 0)
+#define LDSR			0x46c
+#define LDSR_MSS		(1 << 10)
+#define LDSR_MRS		(1 << 8)
+#define LDSR_AS			(1 << 1)
+#define LDCNT1R			0x470
+#define LDCNT1R_DE		(1 << 0)
+#define LDCNT2R			0x474
+#define LDCNT2R_BR		(1 << 8)
+#define LDCNT2R_MD		(1 << 3)
+#define LDCNT2R_SE		(1 << 2)
+#define LDCNT2R_ME		(1 << 1)
+#define LDCNT2R_DO		(1 << 0)
+#define LDRCNTR			0x478
+#define LDRCNTR_SRS		(1 << 17)
+#define LDRCNTR_SRC		(1 << 16)
+#define LDRCNTR_MRS		(1 << 1)
+#define LDRCNTR_MRC		(1 << 0)
+#define LDDDSR			0x47c
+#define LDDDSR_LS		(1 << 2)
+#define LDDDSR_WS		(1 << 1)
+#define LDDDSR_BS		(1 << 0)
+#define LDHAJR			0x4a0
+
+#define LDDWD0R			0x800
+#define LDDWDxR_WDACT		(1 << 28)
+#define LDDWDxR_RSW		(1 << 24)
+#define LDDRDR			0x840
+#define LDDRDR_RSR		(1 << 24)
+#define LDDRDR_DRD_MASK		(0x3ffff << 0)
+#define LDDWAR			0x900
+#define LDDWAR_WA		(1 << 0)
+#define LDDRAR			0x904
+#define LDDRAR_RA		(1 << 0)
+
+#define LDBCR			0xb00
+#define LDBCR_UPC(n)		(1 << ((n) + 16))
+#define LDBCR_UPF(n)		(1 << ((n) + 8))
+#define LDBCR_UPD(n)		(1 << ((n) + 0))
+#define LDBnBSIFR(n)		(0xb20 + (n) * 0x20 + 0x00)
+#define LDBBSIFR_EN		(1 << 31)
+#define LDBBSIFR_VS		(1 << 29)
+#define LDBBSIFR_BRSEL		(1 << 28)
+#define LDBBSIFR_MX		(1 << 27)
+#define LDBBSIFR_MY		(1 << 26)
+#define LDBBSIFR_CV3		(3 << 24)
+#define LDBBSIFR_CV2		(2 << 24)
+#define LDBBSIFR_CV1		(1 << 24)
+#define LDBBSIFR_CV0		(0 << 24)
+#define LDBBSIFR_CV_MASK	(3 << 24)
+#define LDBBSIFR_LAY_MASK	(0xff << 16)
+#define LDBBSIFR_LAY_SHIFT	16
+#define LDBBSIFR_ROP3_MASK	(0xff << 16)
+#define LDBBSIFR_ROP3_SHIFT	16
+#define LDBBSIFR_AL_PL8		(3 << 14)
+#define LDBBSIFR_AL_PL1		(2 << 14)
+#define LDBBSIFR_AL_PK		(1 << 14)
+#define LDBBSIFR_AL_1		(0 << 14)
+#define LDBBSIFR_AL_MASK	(3 << 14)
+#define LDBBSIFR_SWPL		(1 << 10)
+#define LDBBSIFR_SWPW		(1 << 9)
+#define LDBBSIFR_SWPB		(1 << 8)
+#define LDBBSIFR_RY		(1 << 7)
+#define LDBBSIFR_CHRR_420	(2 << 0)
+#define LDBBSIFR_CHRR_422	(1 << 0)
+#define LDBBSIFR_CHRR_444	(0 << 0)
+#define LDBBSIFR_RPKF_ARGB32	(0x00 << 0)
+#define LDBBSIFR_RPKF_RGB16	(0x03 << 0)
+#define LDBBSIFR_RPKF_RGB24	(0x0b << 0)
+#define LDBBSIFR_RPKF_MASK	(0x1f << 0)
+#define LDBnBSSZR(n)		(0xb20 + (n) * 0x20 + 0x04)
+#define LDBBSSZR_BVSS_MASK	(0xfff << 16)
+#define LDBBSSZR_BVSS_SHIFT	16
+#define LDBBSSZR_BHSS_MASK	(0xfff << 0)
+#define LDBBSSZR_BHSS_SHIFT	0
+#define LDBnBLOCR(n)		(0xb20 + (n) * 0x20 + 0x08)
+#define LDBBLOCR_CVLC_MASK	(0xfff << 16)
+#define LDBBLOCR_CVLC_SHIFT	16
+#define LDBBLOCR_CHLC_MASK	(0xfff << 0)
+#define LDBBLOCR_CHLC_SHIFT	0
+#define LDBnBSMWR(n)		(0xb20 + (n) * 0x20 + 0x0c)
+#define LDBBSMWR_BSMWA_MASK	(0xffff << 16)
+#define LDBBSMWR_BSMWA_SHIFT	16
+#define LDBBSMWR_BSMW_MASK	(0xffff << 0)
+#define LDBBSMWR_BSMW_SHIFT	0
+#define LDBnBSAYR(n)		(0xb20 + (n) * 0x20 + 0x10)
+#define LDBBSAYR_FG1A_MASK	(0xff << 24)
+#define LDBBSAYR_FG1A_SHIFT	24
+#define LDBBSAYR_FG1R_MASK	(0xff << 16)
+#define LDBBSAYR_FG1R_SHIFT	16
+#define LDBBSAYR_FG1G_MASK	(0xff << 8)
+#define LDBBSAYR_FG1G_SHIFT	8
+#define LDBBSAYR_FG1B_MASK	(0xff << 0)
+#define LDBBSAYR_FG1B_SHIFT	0
+#define LDBnBSACR(n)		(0xb20 + (n) * 0x20 + 0x14)
+#define LDBBSACR_FG2A_MASK	(0xff << 24)
+#define LDBBSACR_FG2A_SHIFT	24
+#define LDBBSACR_FG2R_MASK	(0xff << 16)
+#define LDBBSACR_FG2R_SHIFT	16
+#define LDBBSACR_FG2G_MASK	(0xff << 8)
+#define LDBBSACR_FG2G_SHIFT	8
+#define LDBBSACR_FG2B_MASK	(0xff << 0)
+#define LDBBSACR_FG2B_SHIFT	0
+#define LDBnBSAAR(n)		(0xb20 + (n) * 0x20 + 0x18)
+#define LDBBSAAR_AP_MASK	(0xff << 24)
+#define LDBBSAAR_AP_SHIFT	24
+#define LDBBSAAR_R_MASK		(0xff << 16)
+#define LDBBSAAR_R_SHIFT	16
+#define LDBBSAAR_GY_MASK	(0xff << 8)
+#define LDBBSAAR_GY_SHIFT	8
+#define LDBBSAAR_B_MASK		(0xff << 0)
+#define LDBBSAAR_B_SHIFT	0
+#define LDBnBPPCR(n)		(0xb20 + (n) * 0x20 + 0x1c)
+#define LDBBPPCR_AP_MASK	(0xff << 24)
+#define LDBBPPCR_AP_SHIFT	24
+#define LDBBPPCR_R_MASK		(0xff << 16)
+#define LDBBPPCR_R_SHIFT	16
+#define LDBBPPCR_GY_MASK	(0xff << 8)
+#define LDBBPPCR_GY_SHIFT	8
+#define LDBBPPCR_B_MASK		(0xff << 0)
+#define LDBBPPCR_B_SHIFT	0
+#define LDBnBBGCL(n)		(0xb10 + (n) * 0x04)
+#define LDBBBGCL_BGA_MASK	(0xff << 24)
+#define LDBBBGCL_BGA_SHIFT	24
+#define LDBBBGCL_BGR_MASK	(0xff << 16)
+#define LDBBBGCL_BGR_SHIFT	16
+#define LDBBBGCL_BGG_MASK	(0xff << 8)
+#define LDBBBGCL_BGG_SHIFT	8
+#define LDBBBGCL_BGB_MASK	(0xff << 0)
+#define LDBBBGCL_BGB_SHIFT	0
+
+#define LCDC_SIDE_B_OFFSET	0x1000
+#define LCDC_MIRROR_OFFSET	0x2000
+
+static inline bool lcdc_is_banked(u32 reg)
+{
+	switch (reg) {
+	case LDMT1R:
+	case LDMT2R:
+	case LDMT3R:
+	case LDDFR:
+	case LDSM1R:
+	case LDSA1R:
+	case LDSA2R:
+	case LDMLSR:
+	case LDWBFR:
+	case LDWBCNTR:
+	case LDWBAR:
+	case LDHCNR:
+	case LDHSYNR:
+	case LDVLNR:
+	case LDVSYNR:
+	case LDHPDR:
+	case LDVPDR:
+	case LDHAJR:
+		return true;
+	default:
+		return reg >= LDBnBBGCL(0) && reg <= LDBnBPPCR(3);
+	}
+}
+
+static inline void lcdc_write_mirror(struct shmob_drm_device *sdev, u32 reg,
+				     u32 data)
+{
+	iowrite32(data, sdev->mmio + reg + LCDC_MIRROR_OFFSET);
+}
+
+static inline void lcdc_write(struct shmob_drm_device *sdev, u32 reg, u32 data)
+{
+	iowrite32(data, sdev->mmio + reg);
+	if (lcdc_is_banked(reg))
+		iowrite32(data, sdev->mmio + reg + LCDC_SIDE_B_OFFSET);
+}
+
+static inline u32 lcdc_read(struct shmob_drm_device *sdev, u32 reg)
+{
+	return ioread32(sdev->mmio + reg);
+}
+
+static inline int lcdc_wait_bit(struct shmob_drm_device *sdev, u32 reg,
+				u32 mask, u32 until)
+{
+	unsigned long timeout = jiffies + msecs_to_jiffies(5);
+
+	while ((lcdc_read(sdev, reg) & mask) != until) {
+		if (time_after(jiffies, timeout))
+			return -ETIMEDOUT;
+		cpu_relax();
+	}
+
+	return 0;
+}
+
+#endif /* __SHMOB_DRM_REGS_H__ */