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(). ... --- drivers/gpu/drm/mediatek/mtk_disp_gamma.c | 217 ++++++++++++++++++++++++++++++ 1 file changed, 217 insertions(+) create mode 100644 drivers/gpu/drm/mediatek/mtk_disp_gamma.c (limited to 'drivers/gpu/drm/mediatek/mtk_disp_gamma.c') diff --git a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c new file mode 100644 index 000000000..bbd558a03 --- /dev/null +++ b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c @@ -0,0 +1,217 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2021 MediaTek Inc. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "mtk_disp_drv.h" +#include "mtk_drm_crtc.h" +#include "mtk_drm_ddp_comp.h" + +#define DISP_GAMMA_EN 0x0000 +#define GAMMA_EN BIT(0) +#define DISP_GAMMA_CFG 0x0020 +#define GAMMA_LUT_EN BIT(1) +#define GAMMA_DITHERING BIT(2) +#define DISP_GAMMA_SIZE 0x0030 +#define DISP_GAMMA_LUT 0x0700 + +#define LUT_10BIT_MASK 0x03ff + +struct mtk_disp_gamma_data { + bool has_dither; + bool lut_diff; +}; + +/* + * struct mtk_disp_gamma - DISP_GAMMA driver structure + */ +struct mtk_disp_gamma { + struct clk *clk; + void __iomem *regs; + struct cmdq_client_reg cmdq_reg; + const struct mtk_disp_gamma_data *data; +}; + +int mtk_gamma_clk_enable(struct device *dev) +{ + struct mtk_disp_gamma *gamma = dev_get_drvdata(dev); + + return clk_prepare_enable(gamma->clk); +} + +void mtk_gamma_clk_disable(struct device *dev) +{ + struct mtk_disp_gamma *gamma = dev_get_drvdata(dev); + + clk_disable_unprepare(gamma->clk); +} + +void mtk_gamma_set_common(void __iomem *regs, struct drm_crtc_state *state, bool lut_diff) +{ + unsigned int i, reg; + struct drm_color_lut *lut; + void __iomem *lut_base; + u32 word; + u32 diff[3] = {0}; + + if (state->gamma_lut) { + reg = readl(regs + DISP_GAMMA_CFG); + reg = reg | GAMMA_LUT_EN; + writel(reg, regs + DISP_GAMMA_CFG); + lut_base = regs + DISP_GAMMA_LUT; + lut = (struct drm_color_lut *)state->gamma_lut->data; + for (i = 0; i < MTK_LUT_SIZE; i++) { + + if (!lut_diff || (i % 2 == 0)) { + word = (((lut[i].red >> 6) & LUT_10BIT_MASK) << 20) + + (((lut[i].green >> 6) & LUT_10BIT_MASK) << 10) + + ((lut[i].blue >> 6) & LUT_10BIT_MASK); + } else { + diff[0] = (lut[i].red >> 6) - (lut[i - 1].red >> 6); + diff[1] = (lut[i].green >> 6) - (lut[i - 1].green >> 6); + diff[2] = (lut[i].blue >> 6) - (lut[i - 1].blue >> 6); + + word = ((diff[0] & LUT_10BIT_MASK) << 20) + + ((diff[1] & LUT_10BIT_MASK) << 10) + + (diff[2] & LUT_10BIT_MASK); + } + writel(word, (lut_base + i * 4)); + } + } +} + +void mtk_gamma_set(struct device *dev, struct drm_crtc_state *state) +{ + struct mtk_disp_gamma *gamma = dev_get_drvdata(dev); + bool lut_diff = false; + + if (gamma->data) + lut_diff = gamma->data->lut_diff; + + mtk_gamma_set_common(gamma->regs, state, lut_diff); +} + +void mtk_gamma_config(struct device *dev, unsigned int w, + unsigned int h, unsigned int vrefresh, + unsigned int bpc, struct cmdq_pkt *cmdq_pkt) +{ + struct mtk_disp_gamma *gamma = dev_get_drvdata(dev); + + mtk_ddp_write(cmdq_pkt, h << 16 | w, &gamma->cmdq_reg, gamma->regs, + DISP_GAMMA_SIZE); + if (gamma->data && gamma->data->has_dither) + mtk_dither_set_common(gamma->regs, &gamma->cmdq_reg, bpc, + DISP_GAMMA_CFG, GAMMA_DITHERING, cmdq_pkt); +} + +void mtk_gamma_start(struct device *dev) +{ + struct mtk_disp_gamma *gamma = dev_get_drvdata(dev); + + writel(GAMMA_EN, gamma->regs + DISP_GAMMA_EN); +} + +void mtk_gamma_stop(struct device *dev) +{ + struct mtk_disp_gamma *gamma = dev_get_drvdata(dev); + + writel_relaxed(0x0, gamma->regs + DISP_GAMMA_EN); +} + +static int mtk_disp_gamma_bind(struct device *dev, struct device *master, + void *data) +{ + return 0; +} + +static void mtk_disp_gamma_unbind(struct device *dev, struct device *master, + void *data) +{ +} + +static const struct component_ops mtk_disp_gamma_component_ops = { + .bind = mtk_disp_gamma_bind, + .unbind = mtk_disp_gamma_unbind, +}; + +static int mtk_disp_gamma_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct mtk_disp_gamma *priv; + struct resource *res; + int ret; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->clk = devm_clk_get(dev, NULL); + if (IS_ERR(priv->clk)) { + dev_err(dev, "failed to get gamma clk\n"); + return PTR_ERR(priv->clk); + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + priv->regs = devm_ioremap_resource(dev, res); + if (IS_ERR(priv->regs)) { + dev_err(dev, "failed to ioremap gamma\n"); + return PTR_ERR(priv->regs); + } + +#if IS_REACHABLE(CONFIG_MTK_CMDQ) + ret = cmdq_dev_get_client_reg(dev, &priv->cmdq_reg, 0); + if (ret) + dev_dbg(dev, "get mediatek,gce-client-reg fail!\n"); +#endif + + priv->data = of_device_get_match_data(dev); + platform_set_drvdata(pdev, priv); + + ret = component_add(dev, &mtk_disp_gamma_component_ops); + if (ret) + dev_err(dev, "Failed to add component: %d\n", ret); + + return ret; +} + +static int mtk_disp_gamma_remove(struct platform_device *pdev) +{ + component_del(&pdev->dev, &mtk_disp_gamma_component_ops); + + return 0; +} + +static const struct mtk_disp_gamma_data mt8173_gamma_driver_data = { + .has_dither = true, +}; + +static const struct mtk_disp_gamma_data mt8183_gamma_driver_data = { + .lut_diff = true, +}; + +static const struct of_device_id mtk_disp_gamma_driver_dt_match[] = { + { .compatible = "mediatek,mt8173-disp-gamma", + .data = &mt8173_gamma_driver_data}, + { .compatible = "mediatek,mt8183-disp-gamma", + .data = &mt8183_gamma_driver_data}, + {}, +}; +MODULE_DEVICE_TABLE(of, mtk_disp_gamma_driver_dt_match); + +struct platform_driver mtk_disp_gamma_driver = { + .probe = mtk_disp_gamma_probe, + .remove = mtk_disp_gamma_remove, + .driver = { + .name = "mediatek-disp-gamma", + .owner = THIS_MODULE, + .of_match_table = mtk_disp_gamma_driver_dt_match, + }, +}; -- cgit v1.2.3