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/aspeed/aspeed_gfx_crtc.c | 242 +++++++++++++++++++++++++++++++ 1 file changed, 242 insertions(+) create mode 100644 drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c (limited to 'drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c') diff --git a/drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c b/drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c new file mode 100644 index 000000000..55a3444a5 --- /dev/null +++ b/drivers/gpu/drm/aspeed/aspeed_gfx_crtc.c @@ -0,0 +1,242 @@ +// SPDX-License-Identifier: GPL-2.0+ +// Copyright 2018 IBM Corporation + +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "aspeed_gfx.h" + +static struct aspeed_gfx * +drm_pipe_to_aspeed_gfx(struct drm_simple_display_pipe *pipe) +{ + return container_of(pipe, struct aspeed_gfx, pipe); +} + +static int aspeed_gfx_set_pixel_fmt(struct aspeed_gfx *priv, u32 *bpp) +{ + struct drm_crtc *crtc = &priv->pipe.crtc; + struct drm_device *drm = crtc->dev; + const u32 format = crtc->primary->state->fb->format->format; + u32 ctrl1; + + ctrl1 = readl(priv->base + CRT_CTRL1); + ctrl1 &= ~CRT_CTRL_COLOR_MASK; + + switch (format) { + case DRM_FORMAT_RGB565: + dev_dbg(drm->dev, "Setting up RGB565 mode\n"); + ctrl1 |= CRT_CTRL_COLOR_RGB565; + *bpp = 16; + break; + case DRM_FORMAT_XRGB8888: + dev_dbg(drm->dev, "Setting up XRGB8888 mode\n"); + ctrl1 |= CRT_CTRL_COLOR_XRGB8888; + *bpp = 32; + break; + default: + dev_err(drm->dev, "Unhandled pixel format %08x\n", format); + return -EINVAL; + } + + writel(ctrl1, priv->base + CRT_CTRL1); + + return 0; +} + +static void aspeed_gfx_enable_controller(struct aspeed_gfx *priv) +{ + u32 ctrl1 = readl(priv->base + CRT_CTRL1); + u32 ctrl2 = readl(priv->base + CRT_CTRL2); + + /* Set DAC source for display output to Graphics CRT (GFX) */ + regmap_update_bits(priv->scu, priv->dac_reg, BIT(16), BIT(16)); + + writel(ctrl1 | CRT_CTRL_EN, priv->base + CRT_CTRL1); + writel(ctrl2 | CRT_CTRL_DAC_EN, priv->base + CRT_CTRL2); +} + +static void aspeed_gfx_disable_controller(struct aspeed_gfx *priv) +{ + u32 ctrl1 = readl(priv->base + CRT_CTRL1); + u32 ctrl2 = readl(priv->base + CRT_CTRL2); + + writel(ctrl1 & ~CRT_CTRL_EN, priv->base + CRT_CTRL1); + writel(ctrl2 & ~CRT_CTRL_DAC_EN, priv->base + CRT_CTRL2); + + regmap_update_bits(priv->scu, priv->dac_reg, BIT(16), 0); +} + +static void aspeed_gfx_crtc_mode_set_nofb(struct aspeed_gfx *priv) +{ + struct drm_display_mode *m = &priv->pipe.crtc.state->adjusted_mode; + u32 ctrl1, d_offset, t_count, bpp; + int err; + + err = aspeed_gfx_set_pixel_fmt(priv, &bpp); + if (err) + return; + +#if 0 + /* TODO: we have only been able to test with the 40MHz USB clock. The + * clock is fixed, so we cannot adjust it here. */ + clk_set_rate(priv->pixel_clk, m->crtc_clock * 1000); +#endif + + ctrl1 = readl(priv->base + CRT_CTRL1); + ctrl1 &= ~(CRT_CTRL_INTERLACED | + CRT_CTRL_HSYNC_NEGATIVE | + CRT_CTRL_VSYNC_NEGATIVE); + + if (m->flags & DRM_MODE_FLAG_INTERLACE) + ctrl1 |= CRT_CTRL_INTERLACED; + + if (!(m->flags & DRM_MODE_FLAG_PHSYNC)) + ctrl1 |= CRT_CTRL_HSYNC_NEGATIVE; + + if (!(m->flags & DRM_MODE_FLAG_PVSYNC)) + ctrl1 |= CRT_CTRL_VSYNC_NEGATIVE; + + writel(ctrl1, priv->base + CRT_CTRL1); + + /* Horizontal timing */ + writel(CRT_H_TOTAL(m->htotal - 1) | CRT_H_DE(m->hdisplay - 1), + priv->base + CRT_HORIZ0); + writel(CRT_H_RS_START(m->hsync_start - 1) | CRT_H_RS_END(m->hsync_end), + priv->base + CRT_HORIZ1); + + + /* Vertical timing */ + writel(CRT_V_TOTAL(m->vtotal - 1) | CRT_V_DE(m->vdisplay - 1), + priv->base + CRT_VERT0); + writel(CRT_V_RS_START(m->vsync_start) | CRT_V_RS_END(m->vsync_end), + priv->base + CRT_VERT1); + + /* + * Display Offset: address difference between consecutive scan lines + * Terminal Count: memory size of one scan line + */ + d_offset = m->hdisplay * bpp / 8; + t_count = DIV_ROUND_UP(m->hdisplay * bpp, priv->scan_line_max); + + writel(CRT_DISP_OFFSET(d_offset) | CRT_TERM_COUNT(t_count), + priv->base + CRT_OFFSET); + + /* + * Threshold: FIFO thresholds of refill and stop (16 byte chunks + * per line, rounded up) + */ + writel(priv->throd_val, priv->base + CRT_THROD); +} + +static void aspeed_gfx_pipe_enable(struct drm_simple_display_pipe *pipe, + struct drm_crtc_state *crtc_state, + struct drm_plane_state *plane_state) +{ + struct aspeed_gfx *priv = drm_pipe_to_aspeed_gfx(pipe); + struct drm_crtc *crtc = &pipe->crtc; + + aspeed_gfx_crtc_mode_set_nofb(priv); + aspeed_gfx_enable_controller(priv); + drm_crtc_vblank_on(crtc); +} + +static void aspeed_gfx_pipe_disable(struct drm_simple_display_pipe *pipe) +{ + struct aspeed_gfx *priv = drm_pipe_to_aspeed_gfx(pipe); + struct drm_crtc *crtc = &pipe->crtc; + + drm_crtc_vblank_off(crtc); + aspeed_gfx_disable_controller(priv); +} + +static void aspeed_gfx_pipe_update(struct drm_simple_display_pipe *pipe, + struct drm_plane_state *plane_state) +{ + struct aspeed_gfx *priv = drm_pipe_to_aspeed_gfx(pipe); + struct drm_crtc *crtc = &pipe->crtc; + struct drm_framebuffer *fb = pipe->plane.state->fb; + struct drm_pending_vblank_event *event; + struct drm_gem_dma_object *gem; + + spin_lock_irq(&crtc->dev->event_lock); + event = crtc->state->event; + if (event) { + crtc->state->event = NULL; + + if (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); + + if (!fb) + return; + + gem = drm_fb_dma_get_gem_obj(fb, 0); + if (!gem) + return; + writel(gem->dma_addr, priv->base + CRT_ADDR); +} + +static int aspeed_gfx_enable_vblank(struct drm_simple_display_pipe *pipe) +{ + struct aspeed_gfx *priv = drm_pipe_to_aspeed_gfx(pipe); + u32 reg = readl(priv->base + CRT_CTRL1); + + /* Clear pending VBLANK IRQ */ + writel(reg | CRT_CTRL_VERTICAL_INTR_STS, priv->base + CRT_CTRL1); + + reg |= CRT_CTRL_VERTICAL_INTR_EN; + writel(reg, priv->base + CRT_CTRL1); + + return 0; +} + +static void aspeed_gfx_disable_vblank(struct drm_simple_display_pipe *pipe) +{ + struct aspeed_gfx *priv = drm_pipe_to_aspeed_gfx(pipe); + u32 reg = readl(priv->base + CRT_CTRL1); + + reg &= ~CRT_CTRL_VERTICAL_INTR_EN; + writel(reg, priv->base + CRT_CTRL1); + + /* Clear pending VBLANK IRQ */ + writel(reg | CRT_CTRL_VERTICAL_INTR_STS, priv->base + CRT_CTRL1); +} + +static const struct drm_simple_display_pipe_funcs aspeed_gfx_funcs = { + .enable = aspeed_gfx_pipe_enable, + .disable = aspeed_gfx_pipe_disable, + .update = aspeed_gfx_pipe_update, + .enable_vblank = aspeed_gfx_enable_vblank, + .disable_vblank = aspeed_gfx_disable_vblank, +}; + +static const uint32_t aspeed_gfx_formats[] = { + DRM_FORMAT_XRGB8888, + DRM_FORMAT_RGB565, +}; + +int aspeed_gfx_create_pipe(struct drm_device *drm) +{ + struct aspeed_gfx *priv = to_aspeed_gfx(drm); + + return drm_simple_display_pipe_init(drm, &priv->pipe, &aspeed_gfx_funcs, + aspeed_gfx_formats, + ARRAY_SIZE(aspeed_gfx_formats), + NULL, + &priv->connector); +} -- cgit v1.2.3