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, 590 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_mpc.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_mpc.c
new file mode 100644
index 000000000..116f67a0b
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_mpc.c
@@ -0,0 +1,590 @@
+/*
+ * 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 "dcn20_mpc.h"
+
+#include "reg_helper.h"
+#include "dc.h"
+#include "mem_input.h"
+#include "dcn10/dcn10_cm_common.h"
+
+#define REG(reg)\
+	mpc20->mpc_regs->reg
+
+#define IND_REG(index) \
+	(index)
+
+#define CTX \
+	mpc20->base.ctx
+
+#undef FN
+#define FN(reg_name, field_name) \
+	mpc20->mpc_shift->field_name, mpc20->mpc_mask->field_name
+
+#define NUM_ELEMENTS(a) (sizeof(a) / sizeof((a)[0]))
+
+void mpc2_update_blending(
+	struct mpc *mpc,
+	struct mpcc_blnd_cfg *blnd_cfg,
+	int mpcc_id)
+{
+	struct dcn20_mpc *mpc20 = TO_DCN20_MPC(mpc);
+
+	struct mpcc *mpcc = mpc1_get_mpcc(mpc, mpcc_id);
+
+	REG_UPDATE_7(MPCC_CONTROL[mpcc_id],
+			MPCC_ALPHA_BLND_MODE,		blnd_cfg->alpha_mode,
+			MPCC_ALPHA_MULTIPLIED_MODE,	blnd_cfg->pre_multiplied_alpha,
+			MPCC_BLND_ACTIVE_OVERLAP_ONLY,	blnd_cfg->overlap_only,
+			MPCC_GLOBAL_ALPHA,		blnd_cfg->global_alpha,
+			MPCC_GLOBAL_GAIN,		blnd_cfg->global_gain,
+			MPCC_BG_BPC,			blnd_cfg->background_color_bpc,
+			MPCC_BOT_GAIN_MODE,		blnd_cfg->bottom_gain_mode);
+
+	REG_SET(MPCC_TOP_GAIN[mpcc_id], 0, MPCC_TOP_GAIN, blnd_cfg->top_gain);
+	REG_SET(MPCC_BOT_GAIN_INSIDE[mpcc_id], 0, MPCC_BOT_GAIN_INSIDE, blnd_cfg->bottom_inside_gain);
+	REG_SET(MPCC_BOT_GAIN_OUTSIDE[mpcc_id], 0, MPCC_BOT_GAIN_OUTSIDE, blnd_cfg->bottom_outside_gain);
+
+	mpcc->blnd_cfg = *blnd_cfg;
+}
+
+void mpc2_set_denorm(
+		struct mpc *mpc,
+		int opp_id,
+		enum dc_color_depth output_depth)
+{
+	struct dcn20_mpc *mpc20 = TO_DCN20_MPC(mpc);
+	int denorm_mode = 0;
+
+	switch (output_depth) {
+	case COLOR_DEPTH_666:
+		denorm_mode = 1;
+		break;
+	case COLOR_DEPTH_888:
+		denorm_mode = 2;
+		break;
+	case COLOR_DEPTH_999:
+		denorm_mode = 3;
+		break;
+	case COLOR_DEPTH_101010:
+		denorm_mode = 4;
+		break;
+	case COLOR_DEPTH_111111:
+		denorm_mode = 5;
+		break;
+	case COLOR_DEPTH_121212:
+		denorm_mode = 6;
+		break;
+	case COLOR_DEPTH_141414:
+	case COLOR_DEPTH_161616:
+	default:
+		/* not valid used case! */
+		break;
+	}
+
+	REG_UPDATE(DENORM_CONTROL[opp_id],
+			MPC_OUT_DENORM_MODE, denorm_mode);
+}
+
+void mpc2_set_denorm_clamp(
+		struct mpc *mpc,
+		int opp_id,
+		struct mpc_denorm_clamp denorm_clamp)
+{
+	struct dcn20_mpc *mpc20 = TO_DCN20_MPC(mpc);
+
+	REG_UPDATE_2(DENORM_CONTROL[opp_id],
+			MPC_OUT_DENORM_CLAMP_MAX_R_CR, denorm_clamp.clamp_max_r_cr,
+			MPC_OUT_DENORM_CLAMP_MIN_R_CR, denorm_clamp.clamp_min_r_cr);
+	REG_UPDATE_2(DENORM_CLAMP_G_Y[opp_id],
+			MPC_OUT_DENORM_CLAMP_MAX_G_Y, denorm_clamp.clamp_max_g_y,
+			MPC_OUT_DENORM_CLAMP_MIN_G_Y, denorm_clamp.clamp_min_g_y);
+	REG_UPDATE_2(DENORM_CLAMP_B_CB[opp_id],
+			MPC_OUT_DENORM_CLAMP_MAX_B_CB, denorm_clamp.clamp_max_b_cb,
+			MPC_OUT_DENORM_CLAMP_MIN_B_CB, denorm_clamp.clamp_min_b_cb);
+}
+
+
+
+void mpc2_set_output_csc(
+		struct mpc *mpc,
+		int opp_id,
+		const uint16_t *regval,
+		enum mpc_output_csc_mode ocsc_mode)
+{
+	uint32_t cur_mode;
+	struct dcn20_mpc *mpc20 = TO_DCN20_MPC(mpc);
+	struct color_matrices_reg ocsc_regs;
+
+	if (ocsc_mode == MPC_OUTPUT_CSC_DISABLE) {
+		REG_SET(CSC_MODE[opp_id], 0, MPC_OCSC_MODE, ocsc_mode);
+		return;
+	}
+
+	if (regval == NULL) {
+		BREAK_TO_DEBUGGER();
+		return;
+	}
+
+	/* determine which CSC coefficients (A or B) we are using
+	 * currently.  select the alternate set to double buffer
+	 * the CSC update so CSC is updated on frame boundary
+	 */
+	IX_REG_GET(MPC_OCSC_TEST_DEBUG_INDEX, MPC_OCSC_TEST_DEBUG_DATA,
+						MPC_OCSC_TEST_DEBUG_DATA_STATUS_IDX,
+						MPC_OCSC_TEST_DEBUG_DATA_OCSC_MODE, &cur_mode);
+
+	if (cur_mode != MPC_OUTPUT_CSC_COEF_A)
+		ocsc_mode = MPC_OUTPUT_CSC_COEF_A;
+	else
+		ocsc_mode = MPC_OUTPUT_CSC_COEF_B;
+
+	ocsc_regs.shifts.csc_c11 = mpc20->mpc_shift->MPC_OCSC_C11_A;
+	ocsc_regs.masks.csc_c11  = mpc20->mpc_mask->MPC_OCSC_C11_A;
+	ocsc_regs.shifts.csc_c12 = mpc20->mpc_shift->MPC_OCSC_C12_A;
+	ocsc_regs.masks.csc_c12 = mpc20->mpc_mask->MPC_OCSC_C12_A;
+
+	if (ocsc_mode == MPC_OUTPUT_CSC_COEF_A) {
+		ocsc_regs.csc_c11_c12 = REG(CSC_C11_C12_A[opp_id]);
+		ocsc_regs.csc_c33_c34 = REG(CSC_C33_C34_A[opp_id]);
+	} else {
+		ocsc_regs.csc_c11_c12 = REG(CSC_C11_C12_B[opp_id]);
+		ocsc_regs.csc_c33_c34 = REG(CSC_C33_C34_B[opp_id]);
+	}
+
+	cm_helper_program_color_matrices(
+			mpc20->base.ctx,
+			regval,
+			&ocsc_regs);
+
+	REG_SET(CSC_MODE[opp_id], 0, MPC_OCSC_MODE, ocsc_mode);
+}
+
+void mpc2_set_ocsc_default(
+		struct mpc *mpc,
+		int opp_id,
+		enum dc_color_space color_space,
+		enum mpc_output_csc_mode ocsc_mode)
+{
+	uint32_t cur_mode;
+	struct dcn20_mpc *mpc20 = TO_DCN20_MPC(mpc);
+	uint32_t arr_size;
+	struct color_matrices_reg ocsc_regs;
+	const uint16_t *regval = NULL;
+
+	if (ocsc_mode == MPC_OUTPUT_CSC_DISABLE) {
+		REG_SET(CSC_MODE[opp_id], 0, MPC_OCSC_MODE, ocsc_mode);
+		return;
+	}
+
+	regval = find_color_matrix(color_space, &arr_size);
+
+	if (regval == NULL) {
+		BREAK_TO_DEBUGGER();
+		return;
+	}
+
+	/* determine which CSC coefficients (A or B) we are using
+	 * currently.  select the alternate set to double buffer
+	 * the CSC update so CSC is updated on frame boundary
+	 */
+	IX_REG_GET(MPC_OCSC_TEST_DEBUG_INDEX, MPC_OCSC_TEST_DEBUG_DATA,
+						MPC_OCSC_TEST_DEBUG_DATA_STATUS_IDX,
+						MPC_OCSC_TEST_DEBUG_DATA_OCSC_MODE, &cur_mode);
+
+	if (cur_mode != MPC_OUTPUT_CSC_COEF_A)
+		ocsc_mode = MPC_OUTPUT_CSC_COEF_A;
+	else
+		ocsc_mode = MPC_OUTPUT_CSC_COEF_B;
+
+	ocsc_regs.shifts.csc_c11 = mpc20->mpc_shift->MPC_OCSC_C11_A;
+	ocsc_regs.masks.csc_c11  = mpc20->mpc_mask->MPC_OCSC_C11_A;
+	ocsc_regs.shifts.csc_c12 = mpc20->mpc_shift->MPC_OCSC_C12_A;
+	ocsc_regs.masks.csc_c12 = mpc20->mpc_mask->MPC_OCSC_C12_A;
+
+
+	if (ocsc_mode == MPC_OUTPUT_CSC_COEF_A) {
+		ocsc_regs.csc_c11_c12 = REG(CSC_C11_C12_A[opp_id]);
+		ocsc_regs.csc_c33_c34 = REG(CSC_C33_C34_A[opp_id]);
+	} else {
+		ocsc_regs.csc_c11_c12 = REG(CSC_C11_C12_B[opp_id]);
+		ocsc_regs.csc_c33_c34 = REG(CSC_C33_C34_B[opp_id]);
+	}
+
+	cm_helper_program_color_matrices(
+			mpc20->base.ctx,
+			regval,
+			&ocsc_regs);
+
+	REG_SET(CSC_MODE[opp_id], 0, MPC_OCSC_MODE, ocsc_mode);
+}
+
+static void mpc2_ogam_get_reg_field(
+		struct mpc *mpc,
+		struct xfer_func_reg *reg)
+{
+	struct dcn20_mpc *mpc20 = TO_DCN20_MPC(mpc);
+
+	reg->shifts.exp_region0_lut_offset = mpc20->mpc_shift->MPCC_OGAM_RAMA_EXP_REGION0_LUT_OFFSET;
+	reg->masks.exp_region0_lut_offset = mpc20->mpc_mask->MPCC_OGAM_RAMA_EXP_REGION0_LUT_OFFSET;
+	reg->shifts.exp_region0_num_segments = mpc20->mpc_shift->MPCC_OGAM_RAMA_EXP_REGION0_NUM_SEGMENTS;
+	reg->masks.exp_region0_num_segments = mpc20->mpc_mask->MPCC_OGAM_RAMA_EXP_REGION0_NUM_SEGMENTS;
+	reg->shifts.exp_region1_lut_offset = mpc20->mpc_shift->MPCC_OGAM_RAMA_EXP_REGION1_LUT_OFFSET;
+	reg->masks.exp_region1_lut_offset = mpc20->mpc_mask->MPCC_OGAM_RAMA_EXP_REGION1_LUT_OFFSET;
+	reg->shifts.exp_region1_num_segments = mpc20->mpc_shift->MPCC_OGAM_RAMA_EXP_REGION1_NUM_SEGMENTS;
+	reg->masks.exp_region1_num_segments = mpc20->mpc_mask->MPCC_OGAM_RAMA_EXP_REGION1_NUM_SEGMENTS;
+	reg->shifts.field_region_end = mpc20->mpc_shift->MPCC_OGAM_RAMA_EXP_REGION_END_B;
+	reg->masks.field_region_end = mpc20->mpc_mask->MPCC_OGAM_RAMA_EXP_REGION_END_B;
+	reg->shifts.field_region_end_slope = mpc20->mpc_shift->MPCC_OGAM_RAMA_EXP_REGION_END_SLOPE_B;
+	reg->masks.field_region_end_slope = mpc20->mpc_mask->MPCC_OGAM_RAMA_EXP_REGION_END_SLOPE_B;
+	reg->shifts.field_region_end_base = mpc20->mpc_shift->MPCC_OGAM_RAMA_EXP_REGION_END_BASE_B;
+	reg->masks.field_region_end_base = mpc20->mpc_mask->MPCC_OGAM_RAMA_EXP_REGION_END_BASE_B;
+	reg->shifts.field_region_linear_slope = mpc20->mpc_shift->MPCC_OGAM_RAMA_EXP_REGION_LINEAR_SLOPE_B;
+	reg->masks.field_region_linear_slope = mpc20->mpc_mask->MPCC_OGAM_RAMA_EXP_REGION_LINEAR_SLOPE_B;
+	reg->shifts.exp_region_start = mpc20->mpc_shift->MPCC_OGAM_RAMA_EXP_REGION_START_B;
+	reg->masks.exp_region_start = mpc20->mpc_mask->MPCC_OGAM_RAMA_EXP_REGION_START_B;
+	reg->shifts.exp_resion_start_segment = mpc20->mpc_shift->MPCC_OGAM_RAMA_EXP_REGION_START_SEGMENT_B;
+	reg->masks.exp_resion_start_segment = mpc20->mpc_mask->MPCC_OGAM_RAMA_EXP_REGION_START_SEGMENT_B;
+}
+
+void mpc20_power_on_ogam_lut(
+		struct mpc *mpc, int mpcc_id,
+		bool power_on)
+{
+	struct dcn20_mpc *mpc20 = TO_DCN20_MPC(mpc);
+
+	REG_SET(MPCC_MEM_PWR_CTRL[mpcc_id], 0,
+			MPCC_OGAM_MEM_PWR_DIS, power_on == true ? 1:0);
+
+}
+
+static void mpc20_configure_ogam_lut(
+		struct mpc *mpc, int mpcc_id,
+		bool is_ram_a)
+{
+	struct dcn20_mpc *mpc20 = TO_DCN20_MPC(mpc);
+
+	REG_UPDATE_2(MPCC_OGAM_LUT_RAM_CONTROL[mpcc_id],
+			MPCC_OGAM_LUT_WRITE_EN_MASK, 7,
+			MPCC_OGAM_LUT_RAM_SEL, is_ram_a == true ? 0:1);
+
+	REG_SET(MPCC_OGAM_LUT_INDEX[mpcc_id], 0, MPCC_OGAM_LUT_INDEX, 0);
+}
+
+static enum dc_lut_mode mpc20_get_ogam_current(struct mpc *mpc, int mpcc_id)
+{
+	enum dc_lut_mode mode;
+	uint32_t state_mode;
+	struct dcn20_mpc *mpc20 = TO_DCN20_MPC(mpc);
+
+	REG_GET(MPCC_OGAM_LUT_RAM_CONTROL[mpcc_id], MPCC_OGAM_CONFIG_STATUS, &state_mode);
+
+	switch (state_mode) {
+	case 0:
+		mode = LUT_BYPASS;
+		break;
+	case 1:
+		mode = LUT_RAM_A;
+		break;
+	case 2:
+		mode = LUT_RAM_B;
+		break;
+	default:
+		mode = LUT_BYPASS;
+		break;
+	}
+
+	return mode;
+}
+
+static void mpc2_program_lutb(struct mpc *mpc, int mpcc_id,
+			const struct pwl_params *params)
+{
+	struct dcn20_mpc *mpc20 = TO_DCN20_MPC(mpc);
+	struct xfer_func_reg gam_regs;
+
+	mpc2_ogam_get_reg_field(mpc, &gam_regs);
+
+	gam_regs.start_cntl_b = REG(MPCC_OGAM_RAMB_START_CNTL_B[mpcc_id]);
+	gam_regs.start_cntl_g = REG(MPCC_OGAM_RAMB_START_CNTL_G[mpcc_id]);
+	gam_regs.start_cntl_r = REG(MPCC_OGAM_RAMB_START_CNTL_R[mpcc_id]);
+	gam_regs.start_slope_cntl_b = REG(MPCC_OGAM_RAMB_SLOPE_CNTL_B[mpcc_id]);
+	gam_regs.start_slope_cntl_g = REG(MPCC_OGAM_RAMB_SLOPE_CNTL_G[mpcc_id]);
+	gam_regs.start_slope_cntl_r = REG(MPCC_OGAM_RAMB_SLOPE_CNTL_R[mpcc_id]);
+	gam_regs.start_end_cntl1_b = REG(MPCC_OGAM_RAMB_END_CNTL1_B[mpcc_id]);
+	gam_regs.start_end_cntl2_b = REG(MPCC_OGAM_RAMB_END_CNTL2_B[mpcc_id]);
+	gam_regs.start_end_cntl1_g = REG(MPCC_OGAM_RAMB_END_CNTL1_G[mpcc_id]);
+	gam_regs.start_end_cntl2_g = REG(MPCC_OGAM_RAMB_END_CNTL2_G[mpcc_id]);
+	gam_regs.start_end_cntl1_r = REG(MPCC_OGAM_RAMB_END_CNTL1_R[mpcc_id]);
+	gam_regs.start_end_cntl2_r = REG(MPCC_OGAM_RAMB_END_CNTL2_R[mpcc_id]);
+	gam_regs.region_start = REG(MPCC_OGAM_RAMB_REGION_0_1[mpcc_id]);
+	gam_regs.region_end = REG(MPCC_OGAM_RAMB_REGION_32_33[mpcc_id]);
+
+	cm_helper_program_xfer_func(mpc20->base.ctx, params, &gam_regs);
+
+}
+
+static void mpc2_program_luta(struct mpc *mpc, int mpcc_id,
+		const struct pwl_params *params)
+{
+	struct dcn20_mpc *mpc20 = TO_DCN20_MPC(mpc);
+	struct xfer_func_reg gam_regs;
+
+	mpc2_ogam_get_reg_field(mpc, &gam_regs);
+
+	gam_regs.start_cntl_b = REG(MPCC_OGAM_RAMA_START_CNTL_B[mpcc_id]);
+	gam_regs.start_cntl_g = REG(MPCC_OGAM_RAMA_START_CNTL_G[mpcc_id]);
+	gam_regs.start_cntl_r = REG(MPCC_OGAM_RAMA_START_CNTL_R[mpcc_id]);
+	gam_regs.start_slope_cntl_b = REG(MPCC_OGAM_RAMA_SLOPE_CNTL_B[mpcc_id]);
+	gam_regs.start_slope_cntl_g = REG(MPCC_OGAM_RAMA_SLOPE_CNTL_G[mpcc_id]);
+	gam_regs.start_slope_cntl_r = REG(MPCC_OGAM_RAMA_SLOPE_CNTL_R[mpcc_id]);
+	gam_regs.start_end_cntl1_b = REG(MPCC_OGAM_RAMA_END_CNTL1_B[mpcc_id]);
+	gam_regs.start_end_cntl2_b = REG(MPCC_OGAM_RAMA_END_CNTL2_B[mpcc_id]);
+	gam_regs.start_end_cntl1_g = REG(MPCC_OGAM_RAMA_END_CNTL1_G[mpcc_id]);
+	gam_regs.start_end_cntl2_g = REG(MPCC_OGAM_RAMA_END_CNTL2_G[mpcc_id]);
+	gam_regs.start_end_cntl1_r = REG(MPCC_OGAM_RAMA_END_CNTL1_R[mpcc_id]);
+	gam_regs.start_end_cntl2_r = REG(MPCC_OGAM_RAMA_END_CNTL2_R[mpcc_id]);
+	gam_regs.region_start = REG(MPCC_OGAM_RAMA_REGION_0_1[mpcc_id]);
+	gam_regs.region_end = REG(MPCC_OGAM_RAMA_REGION_32_33[mpcc_id]);
+
+	cm_helper_program_xfer_func(mpc20->base.ctx, params, &gam_regs);
+
+}
+
+static void mpc20_program_ogam_pwl(
+		struct mpc *mpc, int mpcc_id,
+		const struct pwl_result_data *rgb,
+		uint32_t num)
+{
+	uint32_t i;
+	struct dcn20_mpc *mpc20 = TO_DCN20_MPC(mpc);
+
+	PERF_TRACE();
+	REG_SEQ_START();
+
+	for (i = 0 ; i < num; i++) {
+		REG_SET(MPCC_OGAM_LUT_DATA[mpcc_id], 0, MPCC_OGAM_LUT_DATA, rgb[i].red_reg);
+		REG_SET(MPCC_OGAM_LUT_DATA[mpcc_id], 0, MPCC_OGAM_LUT_DATA, rgb[i].green_reg);
+		REG_SET(MPCC_OGAM_LUT_DATA[mpcc_id], 0, MPCC_OGAM_LUT_DATA, rgb[i].blue_reg);
+
+		REG_SET(MPCC_OGAM_LUT_DATA[mpcc_id], 0,
+				MPCC_OGAM_LUT_DATA, rgb[i].delta_red_reg);
+		REG_SET(MPCC_OGAM_LUT_DATA[mpcc_id], 0,
+				MPCC_OGAM_LUT_DATA, rgb[i].delta_green_reg);
+		REG_SET(MPCC_OGAM_LUT_DATA[mpcc_id], 0,
+				MPCC_OGAM_LUT_DATA, rgb[i].delta_blue_reg);
+
+	}
+
+}
+
+static void apply_DEDCN20_305_wa(struct mpc *mpc, int mpcc_id,
+				 enum dc_lut_mode current_mode,
+				 enum dc_lut_mode next_mode)
+{
+	struct dcn20_mpc *mpc20 = TO_DCN20_MPC(mpc);
+
+	if (mpc->ctx->dc->debug.cm_in_bypass) {
+		REG_SET(MPCC_OGAM_MODE[mpcc_id], 0, MPCC_OGAM_MODE, 0);
+		return;
+	}
+
+	if (mpc->ctx->dc->work_arounds.dedcn20_305_wa == false) {
+		/*hw fixed in new review*/
+		return;
+	}
+	if (current_mode == LUT_BYPASS)
+		/*this will only work if OTG is locked.
+		 *if we were to support OTG unlock case,
+		 *the workaround will be more complex
+		 */
+		REG_SET(MPCC_OGAM_MODE[mpcc_id], 0, MPCC_OGAM_MODE,
+			next_mode == LUT_RAM_A ? 1:2);
+}
+
+void mpc2_set_output_gamma(
+		struct mpc *mpc,
+		int mpcc_id,
+		const struct pwl_params *params)
+{
+	enum dc_lut_mode current_mode;
+	enum dc_lut_mode next_mode;
+	struct dcn20_mpc *mpc20 = TO_DCN20_MPC(mpc);
+
+	if (mpc->ctx->dc->debug.cm_in_bypass) {
+		REG_SET(MPCC_OGAM_MODE[mpcc_id], 0, MPCC_OGAM_MODE, 0);
+		return;
+	}
+
+	if (params == NULL) {
+		REG_SET(MPCC_OGAM_MODE[mpcc_id], 0, MPCC_OGAM_MODE, 0);
+		return;
+	}
+
+	current_mode = mpc20_get_ogam_current(mpc, mpcc_id);
+	if (current_mode == LUT_BYPASS || current_mode == LUT_RAM_A)
+		next_mode = LUT_RAM_B;
+	else
+		next_mode = LUT_RAM_A;
+
+	mpc20_power_on_ogam_lut(mpc, mpcc_id, true);
+	mpc20_configure_ogam_lut(mpc, mpcc_id, next_mode == LUT_RAM_A);
+
+	if (next_mode == LUT_RAM_A)
+		mpc2_program_luta(mpc, mpcc_id, params);
+	else
+		mpc2_program_lutb(mpc, mpcc_id, params);
+
+	apply_DEDCN20_305_wa(mpc, mpcc_id, current_mode, next_mode);
+
+	mpc20_program_ogam_pwl(
+			mpc, mpcc_id, params->rgb_resulted, params->hw_points_num);
+
+	REG_SET(MPCC_OGAM_MODE[mpcc_id], 0, MPCC_OGAM_MODE,
+		next_mode == LUT_RAM_A ? 1:2);
+}
+void mpc2_assert_idle_mpcc(struct mpc *mpc, int id)
+{
+	struct dcn20_mpc *mpc20 = TO_DCN20_MPC(mpc);
+	unsigned int mpc_disabled;
+
+	ASSERT(!(mpc20->mpcc_in_use_mask & 1 << id));
+	REG_GET(MPCC_STATUS[id], MPCC_DISABLED, &mpc_disabled);
+	if (mpc_disabled)
+		return;
+
+	REG_WAIT(MPCC_STATUS[id],
+			MPCC_IDLE, 1,
+			1, 100000);
+}
+
+void mpc2_assert_mpcc_idle_before_connect(struct mpc *mpc, int mpcc_id)
+{
+	struct dcn20_mpc *mpc20 = TO_DCN20_MPC(mpc);
+	unsigned int top_sel, mpc_busy, mpc_idle, mpc_disabled;
+
+	REG_GET(MPCC_TOP_SEL[mpcc_id],
+			MPCC_TOP_SEL, &top_sel);
+
+	REG_GET_3(MPCC_STATUS[mpcc_id],
+			MPCC_BUSY, &mpc_busy,
+			MPCC_IDLE, &mpc_idle,
+			MPCC_DISABLED, &mpc_disabled);
+
+	if (top_sel == 0xf) {
+		ASSERT(!mpc_busy);
+		ASSERT(mpc_idle);
+		ASSERT(mpc_disabled);
+	} else {
+		ASSERT(!mpc_disabled);
+		ASSERT(!mpc_idle);
+	}
+
+	REG_SEQ_SUBMIT();
+	PERF_TRACE();
+	REG_SEQ_WAIT_DONE();
+	PERF_TRACE();
+}
+
+static void mpc2_init_mpcc(struct mpcc *mpcc, int mpcc_inst)
+{
+	mpcc->mpcc_id = mpcc_inst;
+	mpcc->dpp_id = 0xf;
+	mpcc->mpcc_bot = NULL;
+	mpcc->blnd_cfg.overlap_only = false;
+	mpcc->blnd_cfg.global_alpha = 0xff;
+	mpcc->blnd_cfg.global_gain = 0xff;
+	mpcc->blnd_cfg.background_color_bpc = 4;
+	mpcc->blnd_cfg.bottom_gain_mode = 0;
+	mpcc->blnd_cfg.top_gain = 0x1f000;
+	mpcc->blnd_cfg.bottom_inside_gain = 0x1f000;
+	mpcc->blnd_cfg.bottom_outside_gain = 0x1f000;
+	mpcc->sm_cfg.enable = false;
+}
+
+static struct mpcc *mpc2_get_mpcc_for_dpp(struct mpc_tree *tree, int dpp_id)
+{
+	struct mpcc *tmp_mpcc = tree->opp_list;
+
+	while (tmp_mpcc != NULL) {
+		if (tmp_mpcc->dpp_id == 0xf || tmp_mpcc->dpp_id == dpp_id)
+			return tmp_mpcc;
+
+		/* avoid circular linked list */
+		ASSERT(tmp_mpcc != tmp_mpcc->mpcc_bot);
+		if (tmp_mpcc == tmp_mpcc->mpcc_bot)
+			break;
+
+		tmp_mpcc = tmp_mpcc->mpcc_bot;
+	}
+	return NULL;
+}
+
+const struct mpc_funcs dcn20_mpc_funcs = {
+	.read_mpcc_state = mpc1_read_mpcc_state,
+	.insert_plane = mpc1_insert_plane,
+	.remove_mpcc = mpc1_remove_mpcc,
+	.mpc_init = mpc1_mpc_init,
+	.mpc_init_single_inst = mpc1_mpc_init_single_inst,
+	.update_blending = mpc2_update_blending,
+	.cursor_lock = mpc1_cursor_lock,
+	.get_mpcc_for_dpp = mpc2_get_mpcc_for_dpp,
+	.wait_for_idle = mpc2_assert_idle_mpcc,
+	.assert_mpcc_idle_before_connect = mpc2_assert_mpcc_idle_before_connect,
+	.init_mpcc_list_from_hw = mpc1_init_mpcc_list_from_hw,
+	.set_denorm = mpc2_set_denorm,
+	.set_denorm_clamp = mpc2_set_denorm_clamp,
+	.set_output_csc = mpc2_set_output_csc,
+	.set_ocsc_default = mpc2_set_ocsc_default,
+	.set_output_gamma = mpc2_set_output_gamma,
+	.power_on_mpc_mem_pwr = mpc20_power_on_ogam_lut,
+	.get_mpc_out_mux = mpc1_get_mpc_out_mux,
+	.set_bg_color = mpc1_set_bg_color,
+};
+
+void dcn20_mpc_construct(struct dcn20_mpc *mpc20,
+	struct dc_context *ctx,
+	const struct dcn20_mpc_registers *mpc_regs,
+	const struct dcn20_mpc_shift *mpc_shift,
+	const struct dcn20_mpc_mask *mpc_mask,
+	int num_mpcc)
+{
+	int i;
+
+	mpc20->base.ctx = ctx;
+
+	mpc20->base.funcs = &dcn20_mpc_funcs;
+
+	mpc20->mpc_regs = mpc_regs;
+	mpc20->mpc_shift = mpc_shift;
+	mpc20->mpc_mask = mpc_mask;
+
+	mpc20->mpcc_in_use_mask = 0;
+	mpc20->num_mpcc = num_mpcc;
+
+	for (i = 0; i < MAX_MPCC; i++)
+		mpc2_init_mpcc(&mpc20->base.mpcc_array[i], i);
+}
+