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/sti/sti_mixer.c | 378 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 378 insertions(+) create mode 100644 drivers/gpu/drm/sti/sti_mixer.c (limited to 'drivers/gpu/drm/sti/sti_mixer.c') diff --git a/drivers/gpu/drm/sti/sti_mixer.c b/drivers/gpu/drm/sti/sti_mixer.c new file mode 100644 index 000000000..7e5f14646 --- /dev/null +++ b/drivers/gpu/drm/sti/sti_mixer.c @@ -0,0 +1,378 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) STMicroelectronics SA 2014 + * Authors: Benjamin Gaignard + * Fabien Dessenne + * for STMicroelectronics. + */ + +#include +#include + +#include + +#include "sti_compositor.h" +#include "sti_mixer.h" +#include "sti_vtg.h" + +/* Module parameter to set the background color of the mixer */ +static unsigned int bkg_color = 0x000000; +MODULE_PARM_DESC(bkgcolor, "Value of the background color 0xRRGGBB"); +module_param_named(bkgcolor, bkg_color, int, 0644); + +/* regs offset */ +#define GAM_MIXER_CTL 0x00 +#define GAM_MIXER_BKC 0x04 +#define GAM_MIXER_BCO 0x0C +#define GAM_MIXER_BCS 0x10 +#define GAM_MIXER_AVO 0x28 +#define GAM_MIXER_AVS 0x2C +#define GAM_MIXER_CRB 0x34 +#define GAM_MIXER_ACT 0x38 +#define GAM_MIXER_MBP 0x3C +#define GAM_MIXER_MX0 0x80 + +/* id for depth of CRB reg */ +#define GAM_DEPTH_VID0_ID 1 +#define GAM_DEPTH_VID1_ID 2 +#define GAM_DEPTH_GDP0_ID 3 +#define GAM_DEPTH_GDP1_ID 4 +#define GAM_DEPTH_GDP2_ID 5 +#define GAM_DEPTH_GDP3_ID 6 +#define GAM_DEPTH_MASK_ID 7 + +/* mask in CTL reg */ +#define GAM_CTL_BACK_MASK BIT(0) +#define GAM_CTL_VID0_MASK BIT(1) +#define GAM_CTL_VID1_MASK BIT(2) +#define GAM_CTL_GDP0_MASK BIT(3) +#define GAM_CTL_GDP1_MASK BIT(4) +#define GAM_CTL_GDP2_MASK BIT(5) +#define GAM_CTL_GDP3_MASK BIT(6) +#define GAM_CTL_CURSOR_MASK BIT(9) + +const char *sti_mixer_to_str(struct sti_mixer *mixer) +{ + switch (mixer->id) { + case STI_MIXER_MAIN: + return "MAIN_MIXER"; + case STI_MIXER_AUX: + return "AUX_MIXER"; + default: + return ""; + } +} + +static inline u32 sti_mixer_reg_read(struct sti_mixer *mixer, u32 reg_id) +{ + return readl(mixer->regs + reg_id); +} + +static inline void sti_mixer_reg_write(struct sti_mixer *mixer, + u32 reg_id, u32 val) +{ + writel(val, mixer->regs + reg_id); +} + +#define DBGFS_DUMP(reg) seq_printf(s, "\n %-25s 0x%08X", #reg, \ + sti_mixer_reg_read(mixer, reg)) + +static void mixer_dbg_ctl(struct seq_file *s, int val) +{ + unsigned int i; + int count = 0; + char *const disp_layer[] = {"BKG", "VID0", "VID1", "GDP0", + "GDP1", "GDP2", "GDP3"}; + + seq_puts(s, "\tEnabled: "); + for (i = 0; i < 7; i++) { + if (val & 1) { + seq_printf(s, "%s ", disp_layer[i]); + count++; + } + val = val >> 1; + } + + val = val >> 2; + if (val & 1) { + seq_puts(s, "CURS "); + count++; + } + if (!count) + seq_puts(s, "Nothing"); +} + +static void mixer_dbg_crb(struct seq_file *s, int val) +{ + int i; + + seq_puts(s, "\tDepth: "); + for (i = 0; i < GAM_MIXER_NB_DEPTH_LEVEL; i++) { + switch (val & GAM_DEPTH_MASK_ID) { + case GAM_DEPTH_VID0_ID: + seq_puts(s, "VID0"); + break; + case GAM_DEPTH_VID1_ID: + seq_puts(s, "VID1"); + break; + case GAM_DEPTH_GDP0_ID: + seq_puts(s, "GDP0"); + break; + case GAM_DEPTH_GDP1_ID: + seq_puts(s, "GDP1"); + break; + case GAM_DEPTH_GDP2_ID: + seq_puts(s, "GDP2"); + break; + case GAM_DEPTH_GDP3_ID: + seq_puts(s, "GDP3"); + break; + default: + seq_puts(s, "---"); + } + + if (i < GAM_MIXER_NB_DEPTH_LEVEL - 1) + seq_puts(s, " < "); + val = val >> 3; + } +} + +static void mixer_dbg_mxn(struct seq_file *s, void *addr) +{ + int i; + + for (i = 1; i < 8; i++) + seq_printf(s, "-0x%08X", (int)readl(addr + i * 4)); +} + +static int mixer_dbg_show(struct seq_file *s, void *arg) +{ + struct drm_info_node *node = s->private; + struct sti_mixer *mixer = (struct sti_mixer *)node->info_ent->data; + + seq_printf(s, "%s: (vaddr = 0x%p)", + sti_mixer_to_str(mixer), mixer->regs); + + DBGFS_DUMP(GAM_MIXER_CTL); + mixer_dbg_ctl(s, sti_mixer_reg_read(mixer, GAM_MIXER_CTL)); + DBGFS_DUMP(GAM_MIXER_BKC); + DBGFS_DUMP(GAM_MIXER_BCO); + DBGFS_DUMP(GAM_MIXER_BCS); + DBGFS_DUMP(GAM_MIXER_AVO); + DBGFS_DUMP(GAM_MIXER_AVS); + DBGFS_DUMP(GAM_MIXER_CRB); + mixer_dbg_crb(s, sti_mixer_reg_read(mixer, GAM_MIXER_CRB)); + DBGFS_DUMP(GAM_MIXER_ACT); + DBGFS_DUMP(GAM_MIXER_MBP); + DBGFS_DUMP(GAM_MIXER_MX0); + mixer_dbg_mxn(s, mixer->regs + GAM_MIXER_MX0); + seq_putc(s, '\n'); + return 0; +} + +static struct drm_info_list mixer0_debugfs_files[] = { + { "mixer_main", mixer_dbg_show, 0, NULL }, +}; + +static struct drm_info_list mixer1_debugfs_files[] = { + { "mixer_aux", mixer_dbg_show, 0, NULL }, +}; + +void sti_mixer_debugfs_init(struct sti_mixer *mixer, struct drm_minor *minor) +{ + unsigned int i; + struct drm_info_list *mixer_debugfs_files; + int nb_files; + + switch (mixer->id) { + case STI_MIXER_MAIN: + mixer_debugfs_files = mixer0_debugfs_files; + nb_files = ARRAY_SIZE(mixer0_debugfs_files); + break; + case STI_MIXER_AUX: + mixer_debugfs_files = mixer1_debugfs_files; + nb_files = ARRAY_SIZE(mixer1_debugfs_files); + break; + default: + return; + } + + for (i = 0; i < nb_files; i++) + mixer_debugfs_files[i].data = mixer; + + drm_debugfs_create_files(mixer_debugfs_files, + nb_files, + minor->debugfs_root, minor); +} + +void sti_mixer_set_background_status(struct sti_mixer *mixer, bool enable) +{ + u32 val = sti_mixer_reg_read(mixer, GAM_MIXER_CTL); + + val &= ~GAM_CTL_BACK_MASK; + val |= enable; + sti_mixer_reg_write(mixer, GAM_MIXER_CTL, val); +} + +static void sti_mixer_set_background_color(struct sti_mixer *mixer, + unsigned int rgb) +{ + sti_mixer_reg_write(mixer, GAM_MIXER_BKC, rgb); +} + +static void sti_mixer_set_background_area(struct sti_mixer *mixer, + struct drm_display_mode *mode) +{ + u32 ydo, xdo, yds, xds; + + ydo = sti_vtg_get_line_number(*mode, 0); + yds = sti_vtg_get_line_number(*mode, mode->vdisplay - 1); + xdo = sti_vtg_get_pixel_number(*mode, 0); + xds = sti_vtg_get_pixel_number(*mode, mode->hdisplay - 1); + + sti_mixer_reg_write(mixer, GAM_MIXER_BCO, ydo << 16 | xdo); + sti_mixer_reg_write(mixer, GAM_MIXER_BCS, yds << 16 | xds); +} + +int sti_mixer_set_plane_depth(struct sti_mixer *mixer, struct sti_plane *plane) +{ + int plane_id, depth = plane->drm_plane.state->normalized_zpos; + unsigned int i; + u32 mask, val; + + switch (plane->desc) { + case STI_GDP_0: + plane_id = GAM_DEPTH_GDP0_ID; + break; + case STI_GDP_1: + plane_id = GAM_DEPTH_GDP1_ID; + break; + case STI_GDP_2: + plane_id = GAM_DEPTH_GDP2_ID; + break; + case STI_GDP_3: + plane_id = GAM_DEPTH_GDP3_ID; + break; + case STI_HQVDP_0: + plane_id = GAM_DEPTH_VID0_ID; + break; + case STI_CURSOR: + /* no need to set depth for cursor */ + return 0; + default: + DRM_ERROR("Unknown plane %d\n", plane->desc); + return 1; + } + + /* Search if a previous depth was already assigned to the plane */ + val = sti_mixer_reg_read(mixer, GAM_MIXER_CRB); + for (i = 0; i < GAM_MIXER_NB_DEPTH_LEVEL; i++) { + mask = GAM_DEPTH_MASK_ID << (3 * i); + if ((val & mask) == plane_id << (3 * i)) + break; + } + + mask |= GAM_DEPTH_MASK_ID << (3 * depth); + plane_id = plane_id << (3 * depth); + + DRM_DEBUG_DRIVER("%s %s depth=%d\n", sti_mixer_to_str(mixer), + sti_plane_to_str(plane), depth); + dev_dbg(mixer->dev, "GAM_MIXER_CRB val 0x%x mask 0x%x\n", + plane_id, mask); + + val &= ~mask; + val |= plane_id; + sti_mixer_reg_write(mixer, GAM_MIXER_CRB, val); + + dev_dbg(mixer->dev, "Read GAM_MIXER_CRB 0x%x\n", + sti_mixer_reg_read(mixer, GAM_MIXER_CRB)); + return 0; +} + +int sti_mixer_active_video_area(struct sti_mixer *mixer, + struct drm_display_mode *mode) +{ + u32 ydo, xdo, yds, xds; + + ydo = sti_vtg_get_line_number(*mode, 0); + yds = sti_vtg_get_line_number(*mode, mode->vdisplay - 1); + xdo = sti_vtg_get_pixel_number(*mode, 0); + xds = sti_vtg_get_pixel_number(*mode, mode->hdisplay - 1); + + DRM_DEBUG_DRIVER("%s active video area xdo:%d ydo:%d xds:%d yds:%d\n", + sti_mixer_to_str(mixer), xdo, ydo, xds, yds); + sti_mixer_reg_write(mixer, GAM_MIXER_AVO, ydo << 16 | xdo); + sti_mixer_reg_write(mixer, GAM_MIXER_AVS, yds << 16 | xds); + + sti_mixer_set_background_color(mixer, bkg_color); + + sti_mixer_set_background_area(mixer, mode); + sti_mixer_set_background_status(mixer, true); + return 0; +} + +static u32 sti_mixer_get_plane_mask(struct sti_plane *plane) +{ + switch (plane->desc) { + case STI_BACK: + return GAM_CTL_BACK_MASK; + case STI_GDP_0: + return GAM_CTL_GDP0_MASK; + case STI_GDP_1: + return GAM_CTL_GDP1_MASK; + case STI_GDP_2: + return GAM_CTL_GDP2_MASK; + case STI_GDP_3: + return GAM_CTL_GDP3_MASK; + case STI_HQVDP_0: + return GAM_CTL_VID0_MASK; + case STI_CURSOR: + return GAM_CTL_CURSOR_MASK; + default: + return 0; + } +} + +int sti_mixer_set_plane_status(struct sti_mixer *mixer, + struct sti_plane *plane, bool status) +{ + u32 mask, val; + + DRM_DEBUG_DRIVER("%s %s %s\n", status ? "enable" : "disable", + sti_mixer_to_str(mixer), sti_plane_to_str(plane)); + + mask = sti_mixer_get_plane_mask(plane); + if (!mask) { + DRM_ERROR("Can't find layer mask\n"); + return -EINVAL; + } + + val = sti_mixer_reg_read(mixer, GAM_MIXER_CTL); + val &= ~mask; + val |= status ? mask : 0; + sti_mixer_reg_write(mixer, GAM_MIXER_CTL, val); + + return 0; +} + +struct sti_mixer *sti_mixer_create(struct device *dev, + struct drm_device *drm_dev, + int id, + void __iomem *baseaddr) +{ + struct sti_mixer *mixer = devm_kzalloc(dev, sizeof(*mixer), GFP_KERNEL); + + dev_dbg(dev, "%s\n", __func__); + if (!mixer) { + DRM_ERROR("Failed to allocated memory for mixer\n"); + return NULL; + } + mixer->regs = baseaddr; + mixer->dev = dev; + mixer->id = id; + + DRM_DEBUG_DRIVER("%s created. Regs=%p\n", + sti_mixer_to_str(mixer), mixer->regs); + + return mixer; +} -- cgit v1.2.3