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, 547 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c
new file mode 100644
index 000000000..66df2394d
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c
@@ -0,0 +1,547 @@
+/*
+ * Copyright 2015 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 <drm/drm_crtc.h>
+#include <drm/drm_vblank.h>
+
+#include "amdgpu.h"
+#include "amdgpu_dm.h"
+#include "dc.h"
+#include "amdgpu_securedisplay.h"
+
+static const char *const pipe_crc_sources[] = {
+	"none",
+	"crtc",
+	"crtc dither",
+	"dprx",
+	"dprx dither",
+	"auto",
+};
+
+static enum amdgpu_dm_pipe_crc_source dm_parse_crc_source(const char *source)
+{
+	if (!source || !strcmp(source, "none"))
+		return AMDGPU_DM_PIPE_CRC_SOURCE_NONE;
+	if (!strcmp(source, "auto") || !strcmp(source, "crtc"))
+		return AMDGPU_DM_PIPE_CRC_SOURCE_CRTC;
+	if (!strcmp(source, "dprx"))
+		return AMDGPU_DM_PIPE_CRC_SOURCE_DPRX;
+	if (!strcmp(source, "crtc dither"))
+		return AMDGPU_DM_PIPE_CRC_SOURCE_CRTC_DITHER;
+	if (!strcmp(source, "dprx dither"))
+		return AMDGPU_DM_PIPE_CRC_SOURCE_DPRX_DITHER;
+
+	return AMDGPU_DM_PIPE_CRC_SOURCE_INVALID;
+}
+
+static bool dm_is_crc_source_crtc(enum amdgpu_dm_pipe_crc_source src)
+{
+	return (src == AMDGPU_DM_PIPE_CRC_SOURCE_CRTC) ||
+	       (src == AMDGPU_DM_PIPE_CRC_SOURCE_CRTC_DITHER);
+}
+
+static bool dm_is_crc_source_dprx(enum amdgpu_dm_pipe_crc_source src)
+{
+	return (src == AMDGPU_DM_PIPE_CRC_SOURCE_DPRX) ||
+	       (src == AMDGPU_DM_PIPE_CRC_SOURCE_DPRX_DITHER);
+}
+
+static bool dm_need_crc_dither(enum amdgpu_dm_pipe_crc_source src)
+{
+	return (src == AMDGPU_DM_PIPE_CRC_SOURCE_CRTC_DITHER) ||
+	       (src == AMDGPU_DM_PIPE_CRC_SOURCE_DPRX_DITHER) ||
+	       (src == AMDGPU_DM_PIPE_CRC_SOURCE_NONE);
+}
+
+const char *const *amdgpu_dm_crtc_get_crc_sources(struct drm_crtc *crtc,
+						  size_t *count)
+{
+	*count = ARRAY_SIZE(pipe_crc_sources);
+	return pipe_crc_sources;
+}
+
+#ifdef CONFIG_DRM_AMD_SECURE_DISPLAY
+static void amdgpu_dm_set_crc_window_default(struct drm_crtc *crtc)
+{
+	struct drm_device *drm_dev = crtc->dev;
+	struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
+
+	spin_lock_irq(&drm_dev->event_lock);
+	acrtc->dm_irq_params.window_param.x_start = 0;
+	acrtc->dm_irq_params.window_param.y_start = 0;
+	acrtc->dm_irq_params.window_param.x_end = 0;
+	acrtc->dm_irq_params.window_param.y_end = 0;
+	acrtc->dm_irq_params.window_param.activated = false;
+	acrtc->dm_irq_params.window_param.update_win = false;
+	acrtc->dm_irq_params.window_param.skip_frame_cnt = 0;
+	spin_unlock_irq(&drm_dev->event_lock);
+}
+
+static void amdgpu_dm_crtc_notify_ta_to_read(struct work_struct *work)
+{
+	struct crc_rd_work *crc_rd_wrk;
+	struct amdgpu_device *adev;
+	struct psp_context *psp;
+	struct securedisplay_cmd *securedisplay_cmd;
+	struct drm_crtc *crtc;
+	uint8_t phy_id;
+	int ret;
+
+	crc_rd_wrk = container_of(work, struct crc_rd_work, notify_ta_work);
+	spin_lock_irq(&crc_rd_wrk->crc_rd_work_lock);
+	crtc = crc_rd_wrk->crtc;
+
+	if (!crtc) {
+		spin_unlock_irq(&crc_rd_wrk->crc_rd_work_lock);
+		return;
+	}
+
+	adev = drm_to_adev(crtc->dev);
+	psp = &adev->psp;
+	phy_id = crc_rd_wrk->phy_inst;
+	spin_unlock_irq(&crc_rd_wrk->crc_rd_work_lock);
+
+	mutex_lock(&psp->securedisplay_context.mutex);
+
+	psp_prep_securedisplay_cmd_buf(psp, &securedisplay_cmd,
+						TA_SECUREDISPLAY_COMMAND__SEND_ROI_CRC);
+	securedisplay_cmd->securedisplay_in_message.send_roi_crc.phy_id =
+						phy_id;
+	ret = psp_securedisplay_invoke(psp, TA_SECUREDISPLAY_COMMAND__SEND_ROI_CRC);
+	if (!ret) {
+		if (securedisplay_cmd->status != TA_SECUREDISPLAY_STATUS__SUCCESS) {
+			psp_securedisplay_parse_resp_status(psp, securedisplay_cmd->status);
+		}
+	}
+
+	mutex_unlock(&psp->securedisplay_context.mutex);
+}
+
+static void
+amdgpu_dm_forward_crc_window(struct work_struct *work)
+{
+	struct crc_fw_work *crc_fw_wrk;
+	struct amdgpu_display_manager *dm;
+
+	crc_fw_wrk = container_of(work, struct crc_fw_work, forward_roi_work);
+	dm = crc_fw_wrk->dm;
+
+	mutex_lock(&dm->dc_lock);
+	dc_stream_forward_crc_window(dm->dc, &crc_fw_wrk->rect, crc_fw_wrk->stream, crc_fw_wrk->is_stop_cmd);
+	mutex_unlock(&dm->dc_lock);
+
+	kfree(crc_fw_wrk);
+}
+
+bool amdgpu_dm_crc_window_is_activated(struct drm_crtc *crtc)
+{
+	struct drm_device *drm_dev = crtc->dev;
+	struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
+	bool ret = false;
+
+	spin_lock_irq(&drm_dev->event_lock);
+	ret = acrtc->dm_irq_params.window_param.activated;
+	spin_unlock_irq(&drm_dev->event_lock);
+
+	return ret;
+}
+#endif
+
+int
+amdgpu_dm_crtc_verify_crc_source(struct drm_crtc *crtc, const char *src_name,
+				 size_t *values_cnt)
+{
+	enum amdgpu_dm_pipe_crc_source source = dm_parse_crc_source(src_name);
+
+	if (source < 0) {
+		DRM_DEBUG_DRIVER("Unknown CRC source %s for CRTC%d\n",
+				 src_name, crtc->index);
+		return -EINVAL;
+	}
+
+	*values_cnt = 3;
+	return 0;
+}
+
+int amdgpu_dm_crtc_configure_crc_source(struct drm_crtc *crtc,
+					struct dm_crtc_state *dm_crtc_state,
+					enum amdgpu_dm_pipe_crc_source source)
+{
+	struct amdgpu_device *adev = drm_to_adev(crtc->dev);
+	struct dc_stream_state *stream_state = dm_crtc_state->stream;
+	bool enable = amdgpu_dm_is_valid_crc_source(source);
+	int ret = 0;
+
+	/* Configuration will be deferred to stream enable. */
+	if (!stream_state)
+		return -EINVAL;
+
+	mutex_lock(&adev->dm.dc_lock);
+
+	/* Enable CRTC CRC generation if necessary. */
+	if (dm_is_crc_source_crtc(source) || source == AMDGPU_DM_PIPE_CRC_SOURCE_NONE) {
+#if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
+		if (!enable) {
+			if (adev->dm.crc_rd_wrk) {
+				flush_work(&adev->dm.crc_rd_wrk->notify_ta_work);
+				spin_lock_irq(&adev->dm.crc_rd_wrk->crc_rd_work_lock);
+
+				if (adev->dm.crc_rd_wrk->crtc == crtc) {
+					/* stop ROI update on this crtc */
+					dc_stream_forward_crc_window(stream_state->ctx->dc,
+							NULL, stream_state, true);
+					adev->dm.crc_rd_wrk->crtc = NULL;
+				}
+				spin_unlock_irq(&adev->dm.crc_rd_wrk->crc_rd_work_lock);
+			}
+		}
+#endif
+		if (!dc_stream_configure_crc(stream_state->ctx->dc,
+					     stream_state, NULL, enable, enable)) {
+			ret = -EINVAL;
+			goto unlock;
+		}
+	}
+
+	/* Configure dithering */
+	if (!dm_need_crc_dither(source)) {
+		dc_stream_set_dither_option(stream_state, DITHER_OPTION_TRUN8);
+		dc_stream_set_dyn_expansion(stream_state->ctx->dc, stream_state,
+					    DYN_EXPANSION_DISABLE);
+	} else {
+		dc_stream_set_dither_option(stream_state,
+					    DITHER_OPTION_DEFAULT);
+		dc_stream_set_dyn_expansion(stream_state->ctx->dc, stream_state,
+					    DYN_EXPANSION_AUTO);
+	}
+
+unlock:
+	mutex_unlock(&adev->dm.dc_lock);
+
+	return ret;
+}
+
+int amdgpu_dm_crtc_set_crc_source(struct drm_crtc *crtc, const char *src_name)
+{
+	enum amdgpu_dm_pipe_crc_source source = dm_parse_crc_source(src_name);
+	enum amdgpu_dm_pipe_crc_source cur_crc_src;
+	struct drm_crtc_commit *commit;
+	struct dm_crtc_state *crtc_state;
+	struct drm_device *drm_dev = crtc->dev;
+	struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
+	struct drm_dp_aux *aux = NULL;
+	bool enable = false;
+	bool enabled = false;
+	int ret = 0;
+
+	if (source < 0) {
+		DRM_DEBUG_DRIVER("Unknown CRC source %s for CRTC%d\n",
+				 src_name, crtc->index);
+		return -EINVAL;
+	}
+
+	ret = drm_modeset_lock(&crtc->mutex, NULL);
+	if (ret)
+		return ret;
+
+	spin_lock(&crtc->commit_lock);
+	commit = list_first_entry_or_null(&crtc->commit_list,
+					  struct drm_crtc_commit, commit_entry);
+	if (commit)
+		drm_crtc_commit_get(commit);
+	spin_unlock(&crtc->commit_lock);
+
+	if (commit) {
+		/*
+		 * Need to wait for all outstanding programming to complete
+		 * in commit tail since it can modify CRC related fields and
+		 * hardware state. Since we're holding the CRTC lock we're
+		 * guaranteed that no other commit work can be queued off
+		 * before we modify the state below.
+		 */
+		ret = wait_for_completion_interruptible_timeout(
+			&commit->hw_done, 10 * HZ);
+		if (ret)
+			goto cleanup;
+	}
+
+	enable = amdgpu_dm_is_valid_crc_source(source);
+	crtc_state = to_dm_crtc_state(crtc->state);
+	spin_lock_irq(&drm_dev->event_lock);
+	cur_crc_src = acrtc->dm_irq_params.crc_src;
+	spin_unlock_irq(&drm_dev->event_lock);
+
+	/*
+	 * USER REQ SRC | CURRENT SRC | BEHAVIOR
+	 * -----------------------------
+	 * None         | None        | Do nothing
+	 * None         | CRTC        | Disable CRTC CRC, set default to dither
+	 * None         | DPRX        | Disable DPRX CRC, need 'aux', set default to dither
+	 * None         | CRTC DITHER | Disable CRTC CRC
+	 * None         | DPRX DITHER | Disable DPRX CRC, need 'aux'
+	 * CRTC         | XXXX        | Enable CRTC CRC, no dither
+	 * DPRX         | XXXX        | Enable DPRX CRC, need 'aux', no dither
+	 * CRTC DITHER  | XXXX        | Enable CRTC CRC, set dither
+	 * DPRX DITHER  | XXXX        | Enable DPRX CRC, need 'aux', set dither
+	 */
+	if (dm_is_crc_source_dprx(source) ||
+	    (source == AMDGPU_DM_PIPE_CRC_SOURCE_NONE &&
+	     dm_is_crc_source_dprx(cur_crc_src))) {
+		struct amdgpu_dm_connector *aconn = NULL;
+		struct drm_connector *connector;
+		struct drm_connector_list_iter conn_iter;
+
+		drm_connector_list_iter_begin(crtc->dev, &conn_iter);
+		drm_for_each_connector_iter(connector, &conn_iter) {
+			if (!connector->state || connector->state->crtc != crtc)
+				continue;
+
+			aconn = to_amdgpu_dm_connector(connector);
+			break;
+		}
+		drm_connector_list_iter_end(&conn_iter);
+
+		if (!aconn) {
+			DRM_DEBUG_DRIVER("No amd connector matching CRTC-%d\n", crtc->index);
+			ret = -EINVAL;
+			goto cleanup;
+		}
+
+		aux = (aconn->port) ? &aconn->port->aux : &aconn->dm_dp_aux.aux;
+
+		if (!aux) {
+			DRM_DEBUG_DRIVER("No dp aux for amd connector\n");
+			ret = -EINVAL;
+			goto cleanup;
+		}
+
+		if ((aconn->base.connector_type != DRM_MODE_CONNECTOR_DisplayPort) &&
+				(aconn->base.connector_type != DRM_MODE_CONNECTOR_eDP)) {
+			DRM_DEBUG_DRIVER("No DP connector available for CRC source\n");
+			ret = -EINVAL;
+			goto cleanup;
+		}
+
+	}
+
+#if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
+	amdgpu_dm_set_crc_window_default(crtc);
+#endif
+
+	if (amdgpu_dm_crtc_configure_crc_source(crtc, crtc_state, source)) {
+		ret = -EINVAL;
+		goto cleanup;
+	}
+
+	/*
+	 * Reading the CRC requires the vblank interrupt handler to be
+	 * enabled. Keep a reference until CRC capture stops.
+	 */
+	enabled = amdgpu_dm_is_valid_crc_source(cur_crc_src);
+	if (!enabled && enable) {
+		ret = drm_crtc_vblank_get(crtc);
+		if (ret)
+			goto cleanup;
+
+		if (dm_is_crc_source_dprx(source)) {
+			if (drm_dp_start_crc(aux, crtc)) {
+				DRM_DEBUG_DRIVER("dp start crc failed\n");
+				ret = -EINVAL;
+				goto cleanup;
+			}
+		}
+	} else if (enabled && !enable) {
+		drm_crtc_vblank_put(crtc);
+		if (dm_is_crc_source_dprx(source)) {
+			if (drm_dp_stop_crc(aux)) {
+				DRM_DEBUG_DRIVER("dp stop crc failed\n");
+				ret = -EINVAL;
+				goto cleanup;
+			}
+		}
+	}
+
+	spin_lock_irq(&drm_dev->event_lock);
+	acrtc->dm_irq_params.crc_src = source;
+	spin_unlock_irq(&drm_dev->event_lock);
+
+	/* Reset crc_skipped on dm state */
+	crtc_state->crc_skip_count = 0;
+
+cleanup:
+	if (commit)
+		drm_crtc_commit_put(commit);
+
+	drm_modeset_unlock(&crtc->mutex);
+
+	return ret;
+}
+
+/**
+ * amdgpu_dm_crtc_handle_crc_irq: Report to DRM the CRC on given CRTC.
+ * @crtc: DRM CRTC object.
+ *
+ * This function should be called at the end of a vblank, when the fb has been
+ * fully processed through the pipe.
+ */
+void amdgpu_dm_crtc_handle_crc_irq(struct drm_crtc *crtc)
+{
+	struct dm_crtc_state *crtc_state;
+	struct dc_stream_state *stream_state;
+	struct drm_device *drm_dev = NULL;
+	enum amdgpu_dm_pipe_crc_source cur_crc_src;
+	struct amdgpu_crtc *acrtc = NULL;
+	uint32_t crcs[3];
+	unsigned long flags;
+
+	if (crtc == NULL)
+		return;
+
+	crtc_state = to_dm_crtc_state(crtc->state);
+	stream_state = crtc_state->stream;
+	acrtc = to_amdgpu_crtc(crtc);
+	drm_dev = crtc->dev;
+
+	spin_lock_irqsave(&drm_dev->event_lock, flags);
+	cur_crc_src = acrtc->dm_irq_params.crc_src;
+	spin_unlock_irqrestore(&drm_dev->event_lock, flags);
+
+	/* Early return if CRC capture is not enabled. */
+	if (!amdgpu_dm_is_valid_crc_source(cur_crc_src))
+		return;
+
+	/*
+	 * Since flipping and crc enablement happen asynchronously, we - more
+	 * often than not - will be returning an 'uncooked' crc on first frame.
+	 * Probably because hw isn't ready yet. For added security, skip the
+	 * first two CRC values.
+	 */
+	if (crtc_state->crc_skip_count < 2) {
+		crtc_state->crc_skip_count += 1;
+		return;
+	}
+
+	if (dm_is_crc_source_crtc(cur_crc_src)) {
+		if (!dc_stream_get_crc(stream_state->ctx->dc, stream_state,
+				       &crcs[0], &crcs[1], &crcs[2]))
+			return;
+
+		drm_crtc_add_crc_entry(crtc, true,
+				       drm_crtc_accurate_vblank_count(crtc), crcs);
+	}
+}
+
+#if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
+void amdgpu_dm_crtc_handle_crc_window_irq(struct drm_crtc *crtc)
+{
+	struct dc_stream_state *stream_state;
+	struct drm_device *drm_dev = NULL;
+	enum amdgpu_dm_pipe_crc_source cur_crc_src;
+	struct amdgpu_crtc *acrtc = NULL;
+	struct amdgpu_device *adev = NULL;
+	struct crc_rd_work *crc_rd_wrk;
+	struct crc_fw_work *crc_fw_wrk;
+	unsigned long flags1, flags2;
+
+	if (crtc == NULL)
+		return;
+
+	acrtc = to_amdgpu_crtc(crtc);
+	adev = drm_to_adev(crtc->dev);
+	drm_dev = crtc->dev;
+
+	spin_lock_irqsave(&drm_dev->event_lock, flags1);
+	stream_state = acrtc->dm_irq_params.stream;
+	cur_crc_src = acrtc->dm_irq_params.crc_src;
+
+	/* Early return if CRC capture is not enabled. */
+	if (!amdgpu_dm_is_valid_crc_source(cur_crc_src))
+		goto cleanup;
+
+	if (!dm_is_crc_source_crtc(cur_crc_src))
+		goto cleanup;
+
+	if (!acrtc->dm_irq_params.window_param.activated)
+		goto cleanup;
+
+	if (acrtc->dm_irq_params.window_param.update_win) {
+		if (acrtc->dm_irq_params.window_param.skip_frame_cnt) {
+			acrtc->dm_irq_params.window_param.skip_frame_cnt -= 1;
+			goto cleanup;
+		}
+
+		/* prepare work for dmub to update ROI */
+		crc_fw_wrk = kzalloc(sizeof(*crc_fw_wrk), GFP_ATOMIC);
+		if (!crc_fw_wrk)
+			goto cleanup;
+
+		INIT_WORK(&crc_fw_wrk->forward_roi_work, amdgpu_dm_forward_crc_window);
+		crc_fw_wrk->dm = &adev->dm;
+		crc_fw_wrk->stream = stream_state;
+		crc_fw_wrk->rect.x = acrtc->dm_irq_params.window_param.x_start;
+		crc_fw_wrk->rect.y = acrtc->dm_irq_params.window_param.y_start;
+		crc_fw_wrk->rect.width = acrtc->dm_irq_params.window_param.x_end -
+								acrtc->dm_irq_params.window_param.x_start;
+		crc_fw_wrk->rect.height = acrtc->dm_irq_params.window_param.y_end -
+								acrtc->dm_irq_params.window_param.y_start;
+		schedule_work(&crc_fw_wrk->forward_roi_work);
+
+		acrtc->dm_irq_params.window_param.update_win = false;
+		acrtc->dm_irq_params.window_param.skip_frame_cnt = 1;
+
+	} else {
+		if (acrtc->dm_irq_params.window_param.skip_frame_cnt) {
+			acrtc->dm_irq_params.window_param.skip_frame_cnt -= 1;
+			goto cleanup;
+		}
+
+		if (adev->dm.crc_rd_wrk) {
+			crc_rd_wrk = adev->dm.crc_rd_wrk;
+			spin_lock_irqsave(&crc_rd_wrk->crc_rd_work_lock, flags2);
+			crc_rd_wrk->phy_inst = stream_state->link->link_enc_hw_inst;
+			spin_unlock_irqrestore(&crc_rd_wrk->crc_rd_work_lock, flags2);
+			schedule_work(&crc_rd_wrk->notify_ta_work);
+		}
+	}
+
+cleanup:
+	spin_unlock_irqrestore(&drm_dev->event_lock, flags1);
+}
+
+struct crc_rd_work *amdgpu_dm_crtc_secure_display_create_work(void)
+{
+	struct crc_rd_work *crc_rd_wrk = NULL;
+
+	crc_rd_wrk = kzalloc(sizeof(*crc_rd_wrk), GFP_KERNEL);
+
+	if (!crc_rd_wrk)
+		return NULL;
+
+	spin_lock_init(&crc_rd_wrk->crc_rd_work_lock);
+	INIT_WORK(&crc_rd_wrk->notify_ta_work, amdgpu_dm_crtc_notify_ta_to_read);
+
+	return crc_rd_wrk;
+}
+#endif