From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 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(). ... --- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c | 547 +++++++++++++++++++++ 1 file changed, 547 insertions(+) create mode 100644 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c') 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 +#include + +#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 -- cgit v1.2.3