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/tve200/tve200_display.c | 357 ++++++++++++++++++++++++++++++++ 1 file changed, 357 insertions(+) create mode 100644 drivers/gpu/drm/tve200/tve200_display.c (limited to 'drivers/gpu/drm/tve200/tve200_display.c') diff --git a/drivers/gpu/drm/tve200/tve200_display.c b/drivers/gpu/drm/tve200/tve200_display.c new file mode 100644 index 000000000..37bdd976a --- /dev/null +++ b/drivers/gpu/drm/tve200/tve200_display.c @@ -0,0 +1,357 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2017 Linus Walleij + * Parts of this file were based on sources as follows: + * + * Copyright (C) 2006-2008 Intel Corporation + * Copyright (C) 2007 Amos Lee + * Copyright (C) 2007 Dave Airlie + * Copyright (C) 2011 Texas Instruments + * Copyright (C) 2017 Eric Anholt + */ + +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +#include "tve200_drm.h" + +irqreturn_t tve200_irq(int irq, void *data) +{ + struct tve200_drm_dev_private *priv = data; + u32 stat; + u32 val; + + stat = readl(priv->regs + TVE200_INT_STAT); + + if (!stat) + return IRQ_NONE; + + /* + * Vblank IRQ + * + * The hardware is a bit tilted: the line stays high after clearing + * the vblank IRQ, firing many more interrupts. We counter this + * by toggling the IRQ back and forth from firing at vblank and + * firing at start of active image, which works around the problem + * since those occur strictly in sequence, and we get two IRQs for each + * frame, one at start of Vblank (that we make call into the CRTC) and + * another one at the start of the image (that we discard). + */ + if (stat & TVE200_INT_V_STATUS) { + val = readl(priv->regs + TVE200_CTRL); + /* We have an actual start of vsync */ + if (!(val & TVE200_VSTSTYPE_BITS)) { + drm_crtc_handle_vblank(&priv->pipe.crtc); + /* Toggle trigger to start of active image */ + val |= TVE200_VSTSTYPE_VAI; + } else { + /* Toggle trigger back to start of vsync */ + val &= ~TVE200_VSTSTYPE_BITS; + } + writel(val, priv->regs + TVE200_CTRL); + } else + dev_err(priv->drm->dev, "stray IRQ %08x\n", stat); + + /* Clear the interrupt once done */ + writel(stat, priv->regs + TVE200_INT_CLR); + + return IRQ_HANDLED; +} + +static int tve200_display_check(struct drm_simple_display_pipe *pipe, + struct drm_plane_state *pstate, + struct drm_crtc_state *cstate) +{ + const struct drm_display_mode *mode = &cstate->mode; + struct drm_framebuffer *old_fb = pipe->plane.state->fb; + struct drm_framebuffer *fb = pstate->fb; + + /* + * We support these specific resolutions and nothing else. + */ + if (!(mode->hdisplay == 352 && mode->vdisplay == 240) && /* SIF(525) */ + !(mode->hdisplay == 352 && mode->vdisplay == 288) && /* CIF(625) */ + !(mode->hdisplay == 640 && mode->vdisplay == 480) && /* VGA */ + !(mode->hdisplay == 720 && mode->vdisplay == 480) && /* D1 */ + !(mode->hdisplay == 720 && mode->vdisplay == 576)) { /* D1 */ + DRM_DEBUG_KMS("unsupported display mode (%u x %u)\n", + mode->hdisplay, mode->vdisplay); + return -EINVAL; + } + + if (fb) { + u32 offset = drm_fb_dma_get_gem_addr(fb, pstate, 0); + + /* FB base address must be dword aligned. */ + if (offset & 3) { + DRM_DEBUG_KMS("FB not 32-bit aligned\n"); + return -EINVAL; + } + + /* + * There's no pitch register, the mode's hdisplay + * controls this. + */ + if (fb->pitches[0] != mode->hdisplay * fb->format->cpp[0]) { + DRM_DEBUG_KMS("can't handle pitches\n"); + return -EINVAL; + } + + /* + * We can't change the FB format in a flicker-free + * manner (and only update it during CRTC enable). + */ + if (old_fb && old_fb->format != fb->format) + cstate->mode_changed = true; + } + + return 0; +} + +static void tve200_display_enable(struct drm_simple_display_pipe *pipe, + struct drm_crtc_state *cstate, + struct drm_plane_state *plane_state) +{ + struct drm_crtc *crtc = &pipe->crtc; + struct drm_plane *plane = &pipe->plane; + struct drm_device *drm = crtc->dev; + struct tve200_drm_dev_private *priv = drm->dev_private; + const struct drm_display_mode *mode = &cstate->mode; + struct drm_framebuffer *fb = plane->state->fb; + struct drm_connector *connector = priv->connector; + u32 format = fb->format->format; + u32 ctrl1 = 0; + int retries; + + clk_prepare_enable(priv->clk); + + /* Reset the TVE200 and wait for it to come back online */ + writel(TVE200_CTRL_4_RESET, priv->regs + TVE200_CTRL_4); + for (retries = 0; retries < 5; retries++) { + usleep_range(30000, 50000); + if (readl(priv->regs + TVE200_CTRL_4) & TVE200_CTRL_4_RESET) + continue; + else + break; + } + if (retries == 5 && + readl(priv->regs + TVE200_CTRL_4) & TVE200_CTRL_4_RESET) { + dev_err(drm->dev, "can't get hardware out of reset\n"); + return; + } + + /* Function 1 */ + ctrl1 |= TVE200_CTRL_CSMODE; + /* Interlace mode for CCIR656: parameterize? */ + ctrl1 |= TVE200_CTRL_NONINTERLACE; + /* 32 words per burst */ + ctrl1 |= TVE200_CTRL_BURST_32_WORDS; + /* 16 retries */ + ctrl1 |= TVE200_CTRL_RETRYCNT_16; + /* NTSC mode: parametrize? */ + ctrl1 |= TVE200_CTRL_NTSC; + + /* Vsync IRQ at start of Vsync at first */ + ctrl1 |= TVE200_VSTSTYPE_VSYNC; + + if (connector->display_info.bus_flags & + DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE) + ctrl1 |= TVE200_CTRL_TVCLKP; + + if ((mode->hdisplay == 352 && mode->vdisplay == 240) || /* SIF(525) */ + (mode->hdisplay == 352 && mode->vdisplay == 288)) { /* CIF(625) */ + ctrl1 |= TVE200_CTRL_IPRESOL_CIF; + dev_info(drm->dev, "CIF mode\n"); + } else if (mode->hdisplay == 640 && mode->vdisplay == 480) { + ctrl1 |= TVE200_CTRL_IPRESOL_VGA; + dev_info(drm->dev, "VGA mode\n"); + } else if ((mode->hdisplay == 720 && mode->vdisplay == 480) || + (mode->hdisplay == 720 && mode->vdisplay == 576)) { + ctrl1 |= TVE200_CTRL_IPRESOL_D1; + dev_info(drm->dev, "D1 mode\n"); + } + + if (format & DRM_FORMAT_BIG_ENDIAN) { + ctrl1 |= TVE200_CTRL_BBBP; + format &= ~DRM_FORMAT_BIG_ENDIAN; + } + + switch (format) { + case DRM_FORMAT_XRGB8888: + ctrl1 |= TVE200_IPDMOD_RGB888; + break; + case DRM_FORMAT_RGB565: + ctrl1 |= TVE200_IPDMOD_RGB565; + break; + case DRM_FORMAT_XRGB1555: + ctrl1 |= TVE200_IPDMOD_RGB555; + break; + case DRM_FORMAT_XBGR8888: + ctrl1 |= TVE200_IPDMOD_RGB888 | TVE200_BGR; + break; + case DRM_FORMAT_BGR565: + ctrl1 |= TVE200_IPDMOD_RGB565 | TVE200_BGR; + break; + case DRM_FORMAT_XBGR1555: + ctrl1 |= TVE200_IPDMOD_RGB555 | TVE200_BGR; + break; + case DRM_FORMAT_YUYV: + ctrl1 |= TVE200_IPDMOD_YUV422; + ctrl1 |= TVE200_CTRL_YCBCRODR_CR0Y1CB0Y0; + break; + case DRM_FORMAT_YVYU: + ctrl1 |= TVE200_IPDMOD_YUV422; + ctrl1 |= TVE200_CTRL_YCBCRODR_CB0Y1CR0Y0; + break; + case DRM_FORMAT_UYVY: + ctrl1 |= TVE200_IPDMOD_YUV422; + ctrl1 |= TVE200_CTRL_YCBCRODR_Y1CR0Y0CB0; + break; + case DRM_FORMAT_VYUY: + ctrl1 |= TVE200_IPDMOD_YUV422; + ctrl1 |= TVE200_CTRL_YCBCRODR_Y1CB0Y0CR0; + break; + case DRM_FORMAT_YUV420: + ctrl1 |= TVE200_CTRL_YUV420; + ctrl1 |= TVE200_IPDMOD_YUV420; + break; + default: + dev_err(drm->dev, "Unknown FB format 0x%08x\n", + fb->format->format); + break; + } + + ctrl1 |= TVE200_TVEEN; + + /* Turn it on */ + writel(ctrl1, priv->regs + TVE200_CTRL); + + drm_crtc_vblank_on(crtc); +} + +static void tve200_display_disable(struct drm_simple_display_pipe *pipe) +{ + struct drm_crtc *crtc = &pipe->crtc; + struct drm_device *drm = crtc->dev; + struct tve200_drm_dev_private *priv = drm->dev_private; + + drm_crtc_vblank_off(crtc); + + /* Disable put into reset and Power Down */ + writel(0, priv->regs + TVE200_CTRL); + writel(TVE200_CTRL_4_RESET, priv->regs + TVE200_CTRL_4); + + clk_disable_unprepare(priv->clk); +} + +static void tve200_display_update(struct drm_simple_display_pipe *pipe, + struct drm_plane_state *old_pstate) +{ + struct drm_crtc *crtc = &pipe->crtc; + struct drm_device *drm = crtc->dev; + struct tve200_drm_dev_private *priv = drm->dev_private; + struct drm_pending_vblank_event *event = crtc->state->event; + struct drm_plane *plane = &pipe->plane; + struct drm_plane_state *pstate = plane->state; + struct drm_framebuffer *fb = pstate->fb; + + if (fb) { + /* For RGB, the Y component is used as base address */ + writel(drm_fb_dma_get_gem_addr(fb, pstate, 0), + priv->regs + TVE200_Y_FRAME_BASE_ADDR); + + /* For three plane YUV we need two more addresses */ + if (fb->format->format == DRM_FORMAT_YUV420) { + writel(drm_fb_dma_get_gem_addr(fb, pstate, 1), + priv->regs + TVE200_U_FRAME_BASE_ADDR); + writel(drm_fb_dma_get_gem_addr(fb, pstate, 2), + priv->regs + TVE200_V_FRAME_BASE_ADDR); + } + } + + if (event) { + crtc->state->event = NULL; + + spin_lock_irq(&crtc->dev->event_lock); + if (crtc->state->active && drm_crtc_vblank_get(crtc) == 0) + drm_crtc_arm_vblank_event(crtc, event); + else + drm_crtc_send_vblank_event(crtc, event); + spin_unlock_irq(&crtc->dev->event_lock); + } +} + +static int tve200_display_enable_vblank(struct drm_simple_display_pipe *pipe) +{ + struct drm_crtc *crtc = &pipe->crtc; + struct drm_device *drm = crtc->dev; + struct tve200_drm_dev_private *priv = drm->dev_private; + + /* Clear any IRQs and enable */ + writel(0xFF, priv->regs + TVE200_INT_CLR); + writel(TVE200_INT_V_STATUS, priv->regs + TVE200_INT_EN); + return 0; +} + +static void tve200_display_disable_vblank(struct drm_simple_display_pipe *pipe) +{ + struct drm_crtc *crtc = &pipe->crtc; + struct drm_device *drm = crtc->dev; + struct tve200_drm_dev_private *priv = drm->dev_private; + + writel(0, priv->regs + TVE200_INT_EN); +} + +static const struct drm_simple_display_pipe_funcs tve200_display_funcs = { + .check = tve200_display_check, + .enable = tve200_display_enable, + .disable = tve200_display_disable, + .update = tve200_display_update, + .enable_vblank = tve200_display_enable_vblank, + .disable_vblank = tve200_display_disable_vblank, +}; + +int tve200_display_init(struct drm_device *drm) +{ + struct tve200_drm_dev_private *priv = drm->dev_private; + int ret; + static const u32 formats[] = { + DRM_FORMAT_XRGB8888, + DRM_FORMAT_XBGR8888, + DRM_FORMAT_RGB565, + DRM_FORMAT_BGR565, + DRM_FORMAT_XRGB1555, + DRM_FORMAT_XBGR1555, + /* + * The controller actually supports any YCbCr ordering, + * for packed YCbCr. This just lists the orderings that + * DRM supports. + */ + DRM_FORMAT_YUYV, + DRM_FORMAT_YVYU, + DRM_FORMAT_UYVY, + DRM_FORMAT_VYUY, + /* This uses three planes */ + DRM_FORMAT_YUV420, + }; + + ret = drm_simple_display_pipe_init(drm, &priv->pipe, + &tve200_display_funcs, + formats, ARRAY_SIZE(formats), + NULL, + priv->connector); + if (ret) + return ret; + + return 0; +} -- cgit v1.2.3