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, 471 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_compressor.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_compressor.c
new file mode 100644
index 000000000..d241ee13b
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_compressor.c
@@ -0,0 +1,471 @@
+/*
+ * Copyright 2012-15 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "dm_services.h"
+
+#include "dce/dce_11_0_d.h"
+#include "dce/dce_11_0_sh_mask.h"
+#include "gmc/gmc_8_2_sh_mask.h"
+#include "gmc/gmc_8_2_d.h"
+
+#include "include/logger_interface.h"
+
+#include "dce110_compressor.h"
+
+#define DC_LOGGER \
+		cp110->base.ctx->logger
+#define DCP_REG(reg)\
+	(reg + cp110->offsets.dcp_offset)
+#define DMIF_REG(reg)\
+	(reg + cp110->offsets.dmif_offset)
+
+static const struct dce110_compressor_reg_offsets reg_offsets[] = {
+{
+	.dcp_offset = (mmDCP0_GRPH_CONTROL - mmDCP0_GRPH_CONTROL),
+	.dmif_offset =
+		(mmDMIF_PG0_DPG_PIPE_DPM_CONTROL
+			- mmDMIF_PG0_DPG_PIPE_DPM_CONTROL),
+},
+{
+	.dcp_offset = (mmDCP1_GRPH_CONTROL - mmDCP0_GRPH_CONTROL),
+	.dmif_offset =
+		(mmDMIF_PG1_DPG_PIPE_DPM_CONTROL
+			- mmDMIF_PG0_DPG_PIPE_DPM_CONTROL),
+},
+{
+	.dcp_offset = (mmDCP2_GRPH_CONTROL - mmDCP0_GRPH_CONTROL),
+	.dmif_offset =
+		(mmDMIF_PG2_DPG_PIPE_DPM_CONTROL
+			- mmDMIF_PG0_DPG_PIPE_DPM_CONTROL),
+}
+};
+
+static uint32_t align_to_chunks_number_per_line(uint32_t pixels)
+{
+	return 256 * ((pixels + 255) / 256);
+}
+
+static void reset_lb_on_vblank(struct compressor *compressor, uint32_t crtc_inst)
+{
+	uint32_t value;
+	uint32_t frame_count;
+	uint32_t status_pos;
+	uint32_t retry = 0;
+	struct dce110_compressor *cp110 = TO_DCE110_COMPRESSOR(compressor);
+
+	cp110->offsets = reg_offsets[crtc_inst];
+
+	status_pos = dm_read_reg(compressor->ctx, DCP_REG(mmCRTC_STATUS_POSITION));
+
+
+	/* Only if CRTC is enabled and counter is moving we wait for one frame. */
+	if (status_pos != dm_read_reg(compressor->ctx, DCP_REG(mmCRTC_STATUS_POSITION))) {
+		/* Resetting LB on VBlank */
+		value = dm_read_reg(compressor->ctx, DCP_REG(mmLB_SYNC_RESET_SEL));
+		set_reg_field_value(value, 3, LB_SYNC_RESET_SEL, LB_SYNC_RESET_SEL);
+		set_reg_field_value(value, 1, LB_SYNC_RESET_SEL, LB_SYNC_RESET_SEL2);
+		dm_write_reg(compressor->ctx, DCP_REG(mmLB_SYNC_RESET_SEL), value);
+
+		frame_count = dm_read_reg(compressor->ctx, DCP_REG(mmCRTC_STATUS_FRAME_COUNT));
+
+
+		for (retry = 10000; retry > 0; retry--) {
+			if (frame_count != dm_read_reg(compressor->ctx, DCP_REG(mmCRTC_STATUS_FRAME_COUNT)))
+				break;
+			udelay(10);
+		}
+		if (!retry)
+			dm_error("Frame count did not increase for 100ms.\n");
+
+		/* Resetting LB on VBlank */
+		value = dm_read_reg(compressor->ctx, DCP_REG(mmLB_SYNC_RESET_SEL));
+		set_reg_field_value(value, 2, LB_SYNC_RESET_SEL, LB_SYNC_RESET_SEL);
+		set_reg_field_value(value, 0, LB_SYNC_RESET_SEL, LB_SYNC_RESET_SEL2);
+		dm_write_reg(compressor->ctx, DCP_REG(mmLB_SYNC_RESET_SEL), value);
+	}
+}
+
+static void wait_for_fbc_state_changed(
+	struct dce110_compressor *cp110,
+	bool enabled)
+{
+	uint32_t counter = 0;
+	uint32_t addr = mmFBC_STATUS;
+	uint32_t value;
+
+	while (counter < 1000) {
+		value = dm_read_reg(cp110->base.ctx, addr);
+		if (get_reg_field_value(
+			value,
+			FBC_STATUS,
+			FBC_ENABLE_STATUS) == enabled)
+			break;
+		udelay(100);
+		counter++;
+	}
+
+	if (counter == 1000) {
+		DC_LOG_WARNING("%s: wait counter exceeded, changes to HW not applied",
+			__func__);
+	} else {
+		DC_LOG_SYNC("FBC status changed to %d", enabled);
+	}
+
+
+}
+
+void dce110_compressor_power_up_fbc(struct compressor *compressor)
+{
+	uint32_t value;
+	uint32_t addr;
+
+	addr = mmFBC_CNTL;
+	value = dm_read_reg(compressor->ctx, addr);
+	set_reg_field_value(value, 0, FBC_CNTL, FBC_GRPH_COMP_EN);
+	set_reg_field_value(value, 1, FBC_CNTL, FBC_EN);
+	set_reg_field_value(value, 2, FBC_CNTL, FBC_COHERENCY_MODE);
+	if (compressor->options.bits.CLK_GATING_DISABLED == 1) {
+		/* HW needs to do power measurement comparison. */
+		set_reg_field_value(
+			value,
+			0,
+			FBC_CNTL,
+			FBC_COMP_CLK_GATE_EN);
+	}
+	dm_write_reg(compressor->ctx, addr, value);
+
+	addr = mmFBC_COMP_MODE;
+	value = dm_read_reg(compressor->ctx, addr);
+	set_reg_field_value(value, 1, FBC_COMP_MODE, FBC_RLE_EN);
+	set_reg_field_value(value, 1, FBC_COMP_MODE, FBC_DPCM4_RGB_EN);
+	set_reg_field_value(value, 1, FBC_COMP_MODE, FBC_IND_EN);
+	dm_write_reg(compressor->ctx, addr, value);
+
+	addr = mmFBC_COMP_CNTL;
+	value = dm_read_reg(compressor->ctx, addr);
+	set_reg_field_value(value, 1, FBC_COMP_CNTL, FBC_DEPTH_RGB08_EN);
+	dm_write_reg(compressor->ctx, addr, value);
+	/*FBC_MIN_COMPRESSION 0 ==> 2:1 */
+	/*                    1 ==> 4:1 */
+	/*                    2 ==> 8:1 */
+	/*                  0xF ==> 1:1 */
+	set_reg_field_value(value, 0xF, FBC_COMP_CNTL, FBC_MIN_COMPRESSION);
+	dm_write_reg(compressor->ctx, addr, value);
+	compressor->min_compress_ratio = FBC_COMPRESS_RATIO_1TO1;
+
+	value = 0;
+	dm_write_reg(compressor->ctx, mmFBC_IND_LUT0, value);
+
+	value = 0xFFFFFF;
+	dm_write_reg(compressor->ctx, mmFBC_IND_LUT1, value);
+}
+
+void dce110_compressor_enable_fbc(
+	struct compressor *compressor,
+	struct compr_addr_and_pitch_params *params)
+{
+	struct dce110_compressor *cp110 = TO_DCE110_COMPRESSOR(compressor);
+
+	if (compressor->options.bits.FBC_SUPPORT &&
+		(!dce110_compressor_is_fbc_enabled_in_hw(compressor, NULL))) {
+
+		uint32_t addr;
+		uint32_t value, misc_value;
+
+		addr = mmFBC_CNTL;
+		value = dm_read_reg(compressor->ctx, addr);
+		set_reg_field_value(value, 1, FBC_CNTL, FBC_GRPH_COMP_EN);
+		/* params->inst is valid HW CRTC instance start from 0 */
+		set_reg_field_value(
+			value,
+			params->inst,
+			FBC_CNTL, FBC_SRC_SEL);
+		dm_write_reg(compressor->ctx, addr, value);
+
+		/* Keep track of enum controller_id FBC is attached to */
+		compressor->is_enabled = true;
+		/* attached_inst is SW CRTC instance start from 1
+		 * 0 = CONTROLLER_ID_UNDEFINED means not attached crtc
+		 */
+		compressor->attached_inst = params->inst + CONTROLLER_ID_D0;
+
+		/* Toggle it as there is bug in HW */
+		set_reg_field_value(value, 0, FBC_CNTL, FBC_GRPH_COMP_EN);
+		dm_write_reg(compressor->ctx, addr, value);
+
+		/* FBC usage with scatter & gather for dce110 */
+		misc_value = dm_read_reg(compressor->ctx, mmFBC_MISC);
+
+		set_reg_field_value(misc_value, 1,
+				FBC_MISC, FBC_INVALIDATE_ON_ERROR);
+		set_reg_field_value(misc_value, 1,
+				FBC_MISC, FBC_DECOMPRESS_ERROR_CLEAR);
+		set_reg_field_value(misc_value, 0x14,
+				FBC_MISC, FBC_SLOW_REQ_INTERVAL);
+
+		dm_write_reg(compressor->ctx, mmFBC_MISC, misc_value);
+
+		/* Enable FBC */
+		set_reg_field_value(value, 1, FBC_CNTL, FBC_GRPH_COMP_EN);
+		dm_write_reg(compressor->ctx, addr, value);
+
+		wait_for_fbc_state_changed(cp110, true);
+	}
+}
+
+void dce110_compressor_disable_fbc(struct compressor *compressor)
+{
+	struct dce110_compressor *cp110 = TO_DCE110_COMPRESSOR(compressor);
+	uint32_t crtc_inst = 0;
+
+	if (compressor->options.bits.FBC_SUPPORT) {
+		if (dce110_compressor_is_fbc_enabled_in_hw(compressor, &crtc_inst)) {
+			uint32_t reg_data;
+			/* Turn off compression */
+			reg_data = dm_read_reg(compressor->ctx, mmFBC_CNTL);
+			set_reg_field_value(reg_data, 0, FBC_CNTL, FBC_GRPH_COMP_EN);
+			dm_write_reg(compressor->ctx, mmFBC_CNTL, reg_data);
+
+			/* Reset enum controller_id to undefined */
+			compressor->attached_inst = 0;
+			compressor->is_enabled = false;
+
+			wait_for_fbc_state_changed(cp110, false);
+		}
+
+		/* Sync line buffer which fbc was attached to dce100/110 only */
+		if (crtc_inst > CONTROLLER_ID_UNDEFINED && crtc_inst < CONTROLLER_ID_D3)
+			reset_lb_on_vblank(compressor,
+					crtc_inst - CONTROLLER_ID_D0);
+	}
+}
+
+bool dce110_compressor_is_fbc_enabled_in_hw(
+	struct compressor *compressor,
+	uint32_t *inst)
+{
+	/* Check the hardware register */
+	uint32_t value;
+
+	value = dm_read_reg(compressor->ctx, mmFBC_STATUS);
+	if (get_reg_field_value(value, FBC_STATUS, FBC_ENABLE_STATUS)) {
+		if (inst != NULL)
+			*inst = compressor->attached_inst;
+		return true;
+	}
+
+	value = dm_read_reg(compressor->ctx, mmFBC_MISC);
+	if (get_reg_field_value(value, FBC_MISC, FBC_STOP_ON_HFLIP_EVENT)) {
+		value = dm_read_reg(compressor->ctx, mmFBC_CNTL);
+
+		if (get_reg_field_value(value, FBC_CNTL, FBC_GRPH_COMP_EN)) {
+			if (inst != NULL)
+				*inst =
+					compressor->attached_inst;
+			return true;
+		}
+	}
+	return false;
+}
+
+
+void dce110_compressor_program_compressed_surface_address_and_pitch(
+	struct compressor *compressor,
+	struct compr_addr_and_pitch_params *params)
+{
+	struct dce110_compressor *cp110 = TO_DCE110_COMPRESSOR(compressor);
+	uint32_t value = 0;
+	uint32_t fbc_pitch = 0;
+	uint32_t compressed_surf_address_low_part =
+		compressor->compr_surface_address.addr.low_part;
+
+	cp110->offsets = reg_offsets[params->inst];
+
+	/* Clear content first. */
+	dm_write_reg(
+		compressor->ctx,
+		DCP_REG(mmGRPH_COMPRESS_SURFACE_ADDRESS_HIGH),
+		0);
+	dm_write_reg(compressor->ctx,
+		DCP_REG(mmGRPH_COMPRESS_SURFACE_ADDRESS), 0);
+
+	/* Write address, HIGH has to be first. */
+	dm_write_reg(compressor->ctx,
+		DCP_REG(mmGRPH_COMPRESS_SURFACE_ADDRESS_HIGH),
+		compressor->compr_surface_address.addr.high_part);
+	dm_write_reg(compressor->ctx,
+		DCP_REG(mmGRPH_COMPRESS_SURFACE_ADDRESS),
+		compressed_surf_address_low_part);
+
+	fbc_pitch = align_to_chunks_number_per_line(params->source_view_width);
+
+	if (compressor->min_compress_ratio == FBC_COMPRESS_RATIO_1TO1)
+		fbc_pitch = fbc_pitch / 8;
+	else
+		DC_LOG_WARNING("%s: Unexpected DCE11 compression ratio",
+			__func__);
+
+	/* Clear content first. */
+	dm_write_reg(compressor->ctx, DCP_REG(mmGRPH_COMPRESS_PITCH), 0);
+
+	/* Write FBC Pitch. */
+	set_reg_field_value(
+		value,
+		fbc_pitch,
+		GRPH_COMPRESS_PITCH,
+		GRPH_COMPRESS_PITCH);
+	dm_write_reg(compressor->ctx, DCP_REG(mmGRPH_COMPRESS_PITCH), value);
+
+}
+
+void dce110_compressor_set_fbc_invalidation_triggers(
+	struct compressor *compressor,
+	uint32_t fbc_trigger)
+{
+	/* Disable region hit event, FBC_MEMORY_REGION_MASK = 0 (bits 16-19)
+	 * for DCE 11 regions cannot be used - does not work with S/G
+	 */
+	uint32_t addr = mmFBC_CLIENT_REGION_MASK;
+	uint32_t value = dm_read_reg(compressor->ctx, addr);
+
+	set_reg_field_value(
+		value,
+		0,
+		FBC_CLIENT_REGION_MASK,
+		FBC_MEMORY_REGION_MASK);
+	dm_write_reg(compressor->ctx, addr, value);
+
+	/* Setup events when to clear all CSM entries (effectively marking
+	 * current compressed data invalid)
+	 * For DCE 11 CSM metadata 11111 means - "Not Compressed"
+	 * Used as the initial value of the metadata sent to the compressor
+	 * after invalidation, to indicate that the compressor should attempt
+	 * to compress all chunks on the current pass.  Also used when the chunk
+	 * is not successfully written to memory.
+	 * When this CSM value is detected, FBC reads from the uncompressed
+	 * buffer. Set events according to passed in value, these events are
+	 * valid for DCE11:
+	 *     - bit  0 - display register updated
+	 *     - bit 28 - memory write from any client except from MCIF
+	 *     - bit 29 - CG static screen signal is inactive
+	 * In addition, DCE11.1 also needs to set new DCE11.1 specific events
+	 * that are used to trigger invalidation on certain register changes,
+	 * for example enabling of Alpha Compression may trigger invalidation of
+	 * FBC once bit is set. These events are as follows:
+	 *      - Bit 2 - FBC_GRPH_COMP_EN register updated
+	 *      - Bit 3 - FBC_SRC_SEL register updated
+	 *      - Bit 4 - FBC_MIN_COMPRESSION register updated
+	 *      - Bit 5 - FBC_ALPHA_COMP_EN register updated
+	 *      - Bit 6 - FBC_ZERO_ALPHA_CHUNK_SKIP_EN register updated
+	 *      - Bit 7 - FBC_FORCE_COPY_TO_COMP_BUF register updated
+	 */
+	addr = mmFBC_IDLE_FORCE_CLEAR_MASK;
+	value = dm_read_reg(compressor->ctx, addr);
+	set_reg_field_value(
+		value,
+		fbc_trigger,
+		FBC_IDLE_FORCE_CLEAR_MASK,
+		FBC_IDLE_FORCE_CLEAR_MASK);
+	dm_write_reg(compressor->ctx, addr, value);
+}
+
+struct compressor *dce110_compressor_create(struct dc_context *ctx)
+{
+	struct dce110_compressor *cp110 =
+		kzalloc(sizeof(struct dce110_compressor), GFP_KERNEL);
+
+	if (!cp110)
+		return NULL;
+
+	dce110_compressor_construct(cp110, ctx);
+	return &cp110->base;
+}
+
+void dce110_compressor_destroy(struct compressor **compressor)
+{
+	kfree(TO_DCE110_COMPRESSOR(*compressor));
+	*compressor = NULL;
+}
+
+void get_max_support_fbc_buffersize(unsigned int *max_x, unsigned int *max_y)
+{
+	*max_x = FBC_MAX_X;
+	*max_y = FBC_MAX_Y;
+
+	/* if (m_smallLocalFrameBufferMemory == 1)
+	 * {
+	 *	*max_x = FBC_MAX_X_SG;
+	 *	*max_y = FBC_MAX_Y_SG;
+	 * }
+	 */
+}
+
+static const struct compressor_funcs dce110_compressor_funcs = {
+	.power_up_fbc = dce110_compressor_power_up_fbc,
+	.enable_fbc = dce110_compressor_enable_fbc,
+	.disable_fbc = dce110_compressor_disable_fbc,
+	.set_fbc_invalidation_triggers = dce110_compressor_set_fbc_invalidation_triggers,
+	.surface_address_and_pitch = dce110_compressor_program_compressed_surface_address_and_pitch,
+	.is_fbc_enabled_in_hw = dce110_compressor_is_fbc_enabled_in_hw
+};
+
+
+void dce110_compressor_construct(struct dce110_compressor *compressor,
+	struct dc_context *ctx)
+{
+
+	compressor->base.options.raw = 0;
+	compressor->base.options.bits.FBC_SUPPORT = true;
+
+	/* for dce 11 always use one dram channel for lpt */
+	compressor->base.lpt_channels_num = 1;
+	compressor->base.options.bits.DUMMY_BACKEND = false;
+
+	/*
+	 * check if this system has more than 1 dram channel; if only 1 then lpt
+	 * should not be supported
+	 */
+
+
+	compressor->base.options.bits.CLK_GATING_DISABLED = false;
+
+	compressor->base.ctx = ctx;
+	compressor->base.embedded_panel_h_size = 0;
+	compressor->base.embedded_panel_v_size = 0;
+	compressor->base.memory_bus_width = ctx->asic_id.vram_width;
+	compressor->base.allocated_size = 0;
+	compressor->base.preferred_requested_size = 0;
+	compressor->base.min_compress_ratio = FBC_COMPRESS_RATIO_INVALID;
+	compressor->base.banks_num = 0;
+	compressor->base.raw_size = 0;
+	compressor->base.channel_interleave_size = 0;
+	compressor->base.dram_channels_num = 0;
+	compressor->base.lpt_channels_num = 0;
+	compressor->base.attached_inst = CONTROLLER_ID_UNDEFINED;
+	compressor->base.is_enabled = false;
+	compressor->base.funcs = &dce110_compressor_funcs;
+
+}
+