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/video/fbdev/hitfb.c | 498 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 498 insertions(+) create mode 100644 drivers/video/fbdev/hitfb.c (limited to 'drivers/video/fbdev/hitfb.c') diff --git a/drivers/video/fbdev/hitfb.c b/drivers/video/fbdev/hitfb.c new file mode 100644 index 000000000..bbb0f1d95 --- /dev/null +++ b/drivers/video/fbdev/hitfb.c @@ -0,0 +1,498 @@ +/* + * linux/drivers/video/hitfb.c -- Hitachi LCD frame buffer device + * + * (C) 1999 Mihai Spatar + * (C) 2000 YAEGASHI Takeshi + * (C) 2003, 2004 Paul Mundt + * (C) 2003, 2004, 2006 Andriy Skulysh + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive for + * more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#define WIDTH 640 + +static struct fb_var_screeninfo hitfb_var = { + .activate = FB_ACTIVATE_NOW, + .height = -1, + .width = -1, + .vmode = FB_VMODE_NONINTERLACED, +}; + +static struct fb_fix_screeninfo hitfb_fix = { + .id = "Hitachi HD64461", + .type = FB_TYPE_PACKED_PIXELS, + .accel = FB_ACCEL_NONE, +}; + +static inline void hitfb_accel_wait(void) +{ + while (fb_readw(HD64461_GRCFGR) & HD64461_GRCFGR_ACCSTATUS) ; +} + +static inline void hitfb_accel_start(int truecolor) +{ + if (truecolor) { + fb_writew(6, HD64461_GRCFGR); + } else { + fb_writew(7, HD64461_GRCFGR); + } +} + +static inline void hitfb_accel_set_dest(int truecolor, u16 dx, u16 dy, + u16 width, u16 height) +{ + u32 saddr = WIDTH * dy + dx; + if (truecolor) + saddr <<= 1; + + fb_writew(width-1, HD64461_BBTDWR); + fb_writew(height-1, HD64461_BBTDHR); + + fb_writew(saddr & 0xffff, HD64461_BBTDSARL); + fb_writew(saddr >> 16, HD64461_BBTDSARH); + +} + +static inline void hitfb_accel_bitblt(int truecolor, u16 sx, u16 sy, u16 dx, + u16 dy, u16 width, u16 height, u16 rop, + u32 mask_addr) +{ + u32 saddr, daddr; + u32 maddr = 0; + + height--; + width--; + fb_writew(rop, HD64461_BBTROPR); + if ((sy < dy) || ((sy == dy) && (sx <= dx))) { + saddr = WIDTH * (sy + height) + sx + width; + daddr = WIDTH * (dy + height) + dx + width; + if (mask_addr) { + if (truecolor) + maddr = ((width >> 3) + 1) * (height + 1) - 1; + else + maddr = + (((width >> 4) + 1) * (height + 1) - 1) * 2; + + fb_writew((1 << 5) | 1, HD64461_BBTMDR); + } else + fb_writew(1, HD64461_BBTMDR); + } else { + saddr = WIDTH * sy + sx; + daddr = WIDTH * dy + dx; + if (mask_addr) { + fb_writew((1 << 5), HD64461_BBTMDR); + } else { + fb_writew(0, HD64461_BBTMDR); + } + } + if (truecolor) { + saddr <<= 1; + daddr <<= 1; + } + fb_writew(width, HD64461_BBTDWR); + fb_writew(height, HD64461_BBTDHR); + fb_writew(saddr & 0xffff, HD64461_BBTSSARL); + fb_writew(saddr >> 16, HD64461_BBTSSARH); + fb_writew(daddr & 0xffff, HD64461_BBTDSARL); + fb_writew(daddr >> 16, HD64461_BBTDSARH); + if (mask_addr) { + maddr += mask_addr; + fb_writew(maddr & 0xffff, HD64461_BBTMARL); + fb_writew(maddr >> 16, HD64461_BBTMARH); + } + hitfb_accel_start(truecolor); +} + +static void hitfb_fillrect(struct fb_info *p, const struct fb_fillrect *rect) +{ + if (rect->rop != ROP_COPY) + cfb_fillrect(p, rect); + else { + hitfb_accel_wait(); + fb_writew(0x00f0, HD64461_BBTROPR); + fb_writew(16, HD64461_BBTMDR); + + if (p->var.bits_per_pixel == 16) { + fb_writew(((u32 *) (p->pseudo_palette))[rect->color], + HD64461_GRSCR); + hitfb_accel_set_dest(1, rect->dx, rect->dy, rect->width, + rect->height); + hitfb_accel_start(1); + } else { + fb_writew(rect->color, HD64461_GRSCR); + hitfb_accel_set_dest(0, rect->dx, rect->dy, rect->width, + rect->height); + hitfb_accel_start(0); + } + } +} + +static void hitfb_copyarea(struct fb_info *p, const struct fb_copyarea *area) +{ + hitfb_accel_wait(); + hitfb_accel_bitblt(p->var.bits_per_pixel == 16, area->sx, area->sy, + area->dx, area->dy, area->width, area->height, + 0x00cc, 0); +} + +static int hitfb_pan_display(struct fb_var_screeninfo *var, + struct fb_info *info) +{ + int xoffset = var->xoffset; + int yoffset = var->yoffset; + + if (xoffset != 0) + return -EINVAL; + + fb_writew((yoffset*info->fix.line_length)>>10, HD64461_LCDCBAR); + + return 0; +} + +int hitfb_blank(int blank_mode, struct fb_info *info) +{ + unsigned short v; + + if (blank_mode) { + v = fb_readw(HD64461_LDR1); + v &= ~HD64461_LDR1_DON; + fb_writew(v, HD64461_LDR1); + + v = fb_readw(HD64461_LCDCCR); + v |= HD64461_LCDCCR_MOFF; + fb_writew(v, HD64461_LCDCCR); + + v = fb_readw(HD64461_STBCR); + v |= HD64461_STBCR_SLCDST; + fb_writew(v, HD64461_STBCR); + } else { + v = fb_readw(HD64461_STBCR); + v &= ~HD64461_STBCR_SLCDST; + fb_writew(v, HD64461_STBCR); + + v = fb_readw(HD64461_LCDCCR); + v &= ~(HD64461_LCDCCR_MOFF | HD64461_LCDCCR_STREQ); + fb_writew(v, HD64461_LCDCCR); + + do { + v = fb_readw(HD64461_LCDCCR); + } while(v&HD64461_LCDCCR_STBACK); + + v = fb_readw(HD64461_LDR1); + v |= HD64461_LDR1_DON; + fb_writew(v, HD64461_LDR1); + } + return 0; +} + +static int hitfb_setcolreg(unsigned regno, unsigned red, unsigned green, + unsigned blue, unsigned transp, struct fb_info *info) +{ + if (regno >= 256) + return 1; + + switch (info->var.bits_per_pixel) { + case 8: + fb_writew(regno << 8, HD64461_CPTWAR); + fb_writew(red >> 10, HD64461_CPTWDR); + fb_writew(green >> 10, HD64461_CPTWDR); + fb_writew(blue >> 10, HD64461_CPTWDR); + break; + case 16: + if (regno >= 16) + return 1; + ((u32 *) (info->pseudo_palette))[regno] = + ((red & 0xf800)) | + ((green & 0xfc00) >> 5) | ((blue & 0xf800) >> 11); + break; + } + return 0; +} + +static int hitfb_sync(struct fb_info *info) +{ + hitfb_accel_wait(); + + return 0; +} + +static int hitfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) +{ + int maxy; + + var->xres = info->var.xres; + var->xres_virtual = info->var.xres; + var->yres = info->var.yres; + + if ((var->bits_per_pixel != 8) && (var->bits_per_pixel != 16)) + var->bits_per_pixel = info->var.bits_per_pixel; + + if (var->yres_virtual < var->yres) + var->yres_virtual = var->yres; + + maxy = info->fix.smem_len / var->xres; + + if (var->bits_per_pixel == 16) + maxy /= 2; + + if (var->yres_virtual > maxy) + var->yres_virtual = maxy; + + var->xoffset = 0; + var->yoffset = 0; + + switch (var->bits_per_pixel) { + case 8: + var->red.offset = 0; + var->red.length = 8; + var->green.offset = 0; + var->green.length = 8; + var->blue.offset = 0; + var->blue.length = 8; + var->transp.offset = 0; + var->transp.length = 0; + break; + case 16: /* RGB 565 */ + var->red.offset = 11; + var->red.length = 5; + var->green.offset = 5; + var->green.length = 6; + var->blue.offset = 0; + var->blue.length = 5; + var->transp.offset = 0; + var->transp.length = 0; + break; + } + + return 0; +} + +static int hitfb_set_par(struct fb_info *info) +{ + unsigned short ldr3; + + switch (info->var.bits_per_pixel) { + case 8: + info->fix.line_length = info->var.xres; + info->fix.visual = FB_VISUAL_PSEUDOCOLOR; + info->fix.ypanstep = 16; + break; + case 16: + info->fix.line_length = info->var.xres*2; + info->fix.visual = FB_VISUAL_TRUECOLOR; + info->fix.ypanstep = 8; + break; + } + + fb_writew(info->fix.line_length, HD64461_LCDCLOR); + ldr3 = fb_readw(HD64461_LDR3); + ldr3 &= ~15; + ldr3 |= (info->var.bits_per_pixel == 8) ? 4 : 8; + fb_writew(ldr3, HD64461_LDR3); + return 0; +} + +static const struct fb_ops hitfb_ops = { + .owner = THIS_MODULE, + .fb_check_var = hitfb_check_var, + .fb_set_par = hitfb_set_par, + .fb_setcolreg = hitfb_setcolreg, + .fb_blank = hitfb_blank, + .fb_sync = hitfb_sync, + .fb_pan_display = hitfb_pan_display, + .fb_fillrect = hitfb_fillrect, + .fb_copyarea = hitfb_copyarea, + .fb_imageblit = cfb_imageblit, +}; + +static int hitfb_probe(struct platform_device *dev) +{ + unsigned short lcdclor, ldr3, ldvndr; + struct fb_info *info; + int ret; + + if (fb_get_options("hitfb", NULL)) + return -ENODEV; + + hitfb_fix.mmio_start = HD64461_IO_OFFSET(0x1000); + hitfb_fix.mmio_len = 0x1000; + hitfb_fix.smem_start = HD64461_IO_OFFSET(0x02000000); + hitfb_fix.smem_len = 512 * 1024; + + lcdclor = fb_readw(HD64461_LCDCLOR); + ldvndr = fb_readw(HD64461_LDVNDR); + ldr3 = fb_readw(HD64461_LDR3); + + switch (ldr3 & 15) { + default: + case 4: + hitfb_var.bits_per_pixel = 8; + hitfb_var.xres = lcdclor; + break; + case 8: + hitfb_var.bits_per_pixel = 16; + hitfb_var.xres = lcdclor / 2; + break; + } + hitfb_fix.line_length = lcdclor; + hitfb_fix.visual = (hitfb_var.bits_per_pixel == 8) ? + FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR; + hitfb_var.yres = ldvndr + 1; + hitfb_var.xres_virtual = hitfb_var.xres; + hitfb_var.yres_virtual = hitfb_fix.smem_len / lcdclor; + switch (hitfb_var.bits_per_pixel) { + case 8: + hitfb_var.red.offset = 0; + hitfb_var.red.length = 8; + hitfb_var.green.offset = 0; + hitfb_var.green.length = 8; + hitfb_var.blue.offset = 0; + hitfb_var.blue.length = 8; + hitfb_var.transp.offset = 0; + hitfb_var.transp.length = 0; + break; + case 16: /* RGB 565 */ + hitfb_var.red.offset = 11; + hitfb_var.red.length = 5; + hitfb_var.green.offset = 5; + hitfb_var.green.length = 6; + hitfb_var.blue.offset = 0; + hitfb_var.blue.length = 5; + hitfb_var.transp.offset = 0; + hitfb_var.transp.length = 0; + break; + } + + info = framebuffer_alloc(sizeof(u32) * 16, &dev->dev); + if (unlikely(!info)) + return -ENOMEM; + + info->fbops = &hitfb_ops; + info->var = hitfb_var; + info->fix = hitfb_fix; + info->pseudo_palette = info->par; + info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN | + FBINFO_HWACCEL_FILLRECT | FBINFO_HWACCEL_COPYAREA; + + info->screen_base = (void *)hitfb_fix.smem_start; + + ret = fb_alloc_cmap(&info->cmap, 256, 0); + if (unlikely(ret < 0)) + goto err_fb; + + ret = register_framebuffer(info); + if (unlikely(ret < 0)) + goto err; + + platform_set_drvdata(dev, info); + + fb_info(info, "%s frame buffer device\n", info->fix.id); + + return 0; + +err: + fb_dealloc_cmap(&info->cmap); +err_fb: + framebuffer_release(info); + return ret; +} + +static int hitfb_remove(struct platform_device *dev) +{ + struct fb_info *info = platform_get_drvdata(dev); + + unregister_framebuffer(info); + fb_dealloc_cmap(&info->cmap); + framebuffer_release(info); + + return 0; +} + +static int hitfb_suspend(struct device *dev) +{ + u16 v; + + hitfb_blank(1,0); + v = fb_readw(HD64461_STBCR); + v |= HD64461_STBCR_SLCKE_IST; + fb_writew(v, HD64461_STBCR); + + return 0; +} + +static int hitfb_resume(struct device *dev) +{ + u16 v; + + v = fb_readw(HD64461_STBCR); + v &= ~HD64461_STBCR_SLCKE_OST; + msleep(100); + v = fb_readw(HD64461_STBCR); + v &= ~HD64461_STBCR_SLCKE_IST; + fb_writew(v, HD64461_STBCR); + hitfb_blank(0,0); + + return 0; +} + +static const struct dev_pm_ops hitfb_dev_pm_ops = { + .suspend = hitfb_suspend, + .resume = hitfb_resume, +}; + +static struct platform_driver hitfb_driver = { + .probe = hitfb_probe, + .remove = hitfb_remove, + .driver = { + .name = "hitfb", + .pm = &hitfb_dev_pm_ops, + }, +}; + +static struct platform_device hitfb_device = { + .name = "hitfb", + .id = -1, +}; + +static int __init hitfb_init(void) +{ + int ret; + + ret = platform_driver_register(&hitfb_driver); + if (!ret) { + ret = platform_device_register(&hitfb_device); + if (ret) + platform_driver_unregister(&hitfb_driver); + } + return ret; +} + + +static void __exit hitfb_exit(void) +{ + platform_device_unregister(&hitfb_device); + platform_driver_unregister(&hitfb_driver); +} + +module_init(hitfb_init); +module_exit(hitfb_exit); + +MODULE_LICENSE("GPL"); -- cgit v1.2.3