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/matrox/matroxfb_crtc2.c | 739 ++++++++++++++++++++++++++++ 1 file changed, 739 insertions(+) create mode 100644 drivers/video/fbdev/matrox/matroxfb_crtc2.c (limited to 'drivers/video/fbdev/matrox/matroxfb_crtc2.c') diff --git a/drivers/video/fbdev/matrox/matroxfb_crtc2.c b/drivers/video/fbdev/matrox/matroxfb_crtc2.c new file mode 100644 index 000000000..7655afa3f --- /dev/null +++ b/drivers/video/fbdev/matrox/matroxfb_crtc2.c @@ -0,0 +1,739 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * + * Hardware accelerated Matrox Millennium I, II, Mystique, G100, G200, G400 and G450. + * + * (c) 1998-2002 Petr Vandrovec + * + * Portions Copyright (c) 2001 Matrox Graphics Inc. + * + * Version: 1.65 2002/08/14 + * + */ + +#include "matroxfb_maven.h" +#include "matroxfb_crtc2.h" +#include "matroxfb_misc.h" +#include "matroxfb_DAC1064.h" +#include +#include +#include + +/* **************************************************** */ + +static int mem = 8192; + +module_param(mem, int, 0); +MODULE_PARM_DESC(mem, "Memory size reserved for dualhead (default=8MB)"); + +/* **************************************************** */ + +static int matroxfb_dh_setcolreg(unsigned regno, unsigned red, unsigned green, + unsigned blue, unsigned transp, struct fb_info* info) { + u_int32_t col; +#define m2info (container_of(info, struct matroxfb_dh_fb_info, fbcon)) + + if (regno >= 16) + return 1; + if (m2info->fbcon.var.grayscale) { + /* gray = 0.30*R + 0.59*G + 0.11*B */ + red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8; + } + red = CNVT_TOHW(red, m2info->fbcon.var.red.length); + green = CNVT_TOHW(green, m2info->fbcon.var.green.length); + blue = CNVT_TOHW(blue, m2info->fbcon.var.blue.length); + transp = CNVT_TOHW(transp, m2info->fbcon.var.transp.length); + + col = (red << m2info->fbcon.var.red.offset) | + (green << m2info->fbcon.var.green.offset) | + (blue << m2info->fbcon.var.blue.offset) | + (transp << m2info->fbcon.var.transp.offset); + + switch (m2info->fbcon.var.bits_per_pixel) { + case 16: + m2info->cmap[regno] = col | (col << 16); + break; + case 32: + m2info->cmap[regno] = col; + break; + } + return 0; +#undef m2info +} + +static void matroxfb_dh_restore(struct matroxfb_dh_fb_info* m2info, + struct my_timming* mt, + int mode, + unsigned int pos) { + u_int32_t tmp; + u_int32_t datactl; + struct matrox_fb_info *minfo = m2info->primary_dev; + + switch (mode) { + case 15: + tmp = 0x00200000; + break; + case 16: + tmp = 0x00400000; + break; +/* case 32: */ + default: + tmp = 0x00800000; + break; + } + tmp |= 0x00000001; /* enable CRTC2 */ + datactl = 0; + if (minfo->outputs[1].src == MATROXFB_SRC_CRTC2) { + if (minfo->devflags.g450dac) { + tmp |= 0x00000006; /* source from secondary pixel PLL */ + /* no vidrst when in monitor mode */ + if (minfo->outputs[1].mode != MATROXFB_OUTPUT_MODE_MONITOR) { + tmp |= 0xC0001000; /* Enable H/V vidrst */ + } + } else { + tmp |= 0x00000002; /* source from VDOCLK */ + tmp |= 0xC0000000; /* enable vvidrst & hvidrst */ + /* MGA TVO is our clock source */ + } + } else if (minfo->outputs[0].src == MATROXFB_SRC_CRTC2) { + tmp |= 0x00000004; /* source from pixclock */ + /* PIXPLL is our clock source */ + } + if (minfo->outputs[0].src == MATROXFB_SRC_CRTC2) { + tmp |= 0x00100000; /* connect CRTC2 to DAC */ + } + if (mt->interlaced) { + tmp |= 0x02000000; /* interlaced, second field is bigger, as G450 apparently ignores it */ + mt->VDisplay >>= 1; + mt->VSyncStart >>= 1; + mt->VSyncEnd >>= 1; + mt->VTotal >>= 1; + } + if ((mt->HTotal & 7) == 2) { + datactl |= 0x00000010; + mt->HTotal &= ~7; + } + tmp |= 0x10000000; /* 0x10000000 is VIDRST polarity */ + mga_outl(0x3C14, ((mt->HDisplay - 8) << 16) | (mt->HTotal - 8)); + mga_outl(0x3C18, ((mt->HSyncEnd - 8) << 16) | (mt->HSyncStart - 8)); + mga_outl(0x3C1C, ((mt->VDisplay - 1) << 16) | (mt->VTotal - 1)); + mga_outl(0x3C20, ((mt->VSyncEnd - 1) << 16) | (mt->VSyncStart - 1)); + mga_outl(0x3C24, ((mt->VSyncStart) << 16) | (mt->HSyncStart)); /* preload */ + { + u_int32_t linelen = m2info->fbcon.var.xres_virtual * (m2info->fbcon.var.bits_per_pixel >> 3); + if (tmp & 0x02000000) { + /* field #0 is smaller, so... */ + mga_outl(0x3C2C, pos); /* field #1 vmemory start */ + mga_outl(0x3C28, pos + linelen); /* field #0 vmemory start */ + linelen <<= 1; + m2info->interlaced = 1; + } else { + mga_outl(0x3C28, pos); /* vmemory start */ + m2info->interlaced = 0; + } + mga_outl(0x3C40, linelen); + } + mga_outl(0x3C4C, datactl); /* data control */ + if (tmp & 0x02000000) { + int i; + + mga_outl(0x3C10, tmp & ~0x02000000); + for (i = 0; i < 2; i++) { + unsigned int nl; + unsigned int lastl = 0; + + while ((nl = mga_inl(0x3C48) & 0xFFF) >= lastl) { + lastl = nl; + } + } + } + mga_outl(0x3C10, tmp); + minfo->hw.crtc2.ctl = tmp; + + tmp = mt->VDisplay << 16; /* line compare */ + if (mt->sync & FB_SYNC_HOR_HIGH_ACT) + tmp |= 0x00000100; + if (mt->sync & FB_SYNC_VERT_HIGH_ACT) + tmp |= 0x00000200; + mga_outl(0x3C44, tmp); +} + +static void matroxfb_dh_disable(struct matroxfb_dh_fb_info* m2info) { + struct matrox_fb_info *minfo = m2info->primary_dev; + + mga_outl(0x3C10, 0x00000004); /* disable CRTC2, CRTC1->DAC1, PLL as clock source */ + minfo->hw.crtc2.ctl = 0x00000004; +} + +static void matroxfb_dh_pan_var(struct matroxfb_dh_fb_info* m2info, + struct fb_var_screeninfo* var) { + unsigned int pos; + unsigned int linelen; + unsigned int pixelsize; + struct matrox_fb_info *minfo = m2info->primary_dev; + + m2info->fbcon.var.xoffset = var->xoffset; + m2info->fbcon.var.yoffset = var->yoffset; + pixelsize = m2info->fbcon.var.bits_per_pixel >> 3; + linelen = m2info->fbcon.var.xres_virtual * pixelsize; + pos = m2info->fbcon.var.yoffset * linelen + m2info->fbcon.var.xoffset * pixelsize; + pos += m2info->video.offbase; + if (m2info->interlaced) { + mga_outl(0x3C2C, pos); + mga_outl(0x3C28, pos + linelen); + } else { + mga_outl(0x3C28, pos); + } +} + +static int matroxfb_dh_decode_var(struct matroxfb_dh_fb_info* m2info, + struct fb_var_screeninfo* var, + int *visual, + int *video_cmap_len, + int *mode) { + unsigned int mask; + unsigned int memlen; + unsigned int vramlen; + + switch (var->bits_per_pixel) { + case 16: mask = 0x1F; + break; + case 32: mask = 0x0F; + break; + default: return -EINVAL; + } + vramlen = m2info->video.len_usable; + if (var->yres_virtual < var->yres) + var->yres_virtual = var->yres; + if (var->xres_virtual < var->xres) + var->xres_virtual = var->xres; + var->xres_virtual = (var->xres_virtual + mask) & ~mask; + if (var->yres_virtual > 32767) + return -EINVAL; + memlen = var->xres_virtual * var->yres_virtual * (var->bits_per_pixel >> 3); + if (memlen > vramlen) + return -EINVAL; + if (var->xoffset + var->xres > var->xres_virtual) + var->xoffset = var->xres_virtual - var->xres; + if (var->yoffset + var->yres > var->yres_virtual) + var->yoffset = var->yres_virtual - var->yres; + + var->xres &= ~7; + var->left_margin &= ~7; + var->right_margin &= ~7; + var->hsync_len &= ~7; + + *mode = var->bits_per_pixel; + if (var->bits_per_pixel == 16) { + if (var->green.length == 5) { + var->red.offset = 10; + var->red.length = 5; + var->green.offset = 5; + var->green.length = 5; + var->blue.offset = 0; + var->blue.length = 5; + var->transp.offset = 15; + var->transp.length = 1; + *mode = 15; + } else { + 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; + } + } else { + var->red.offset = 16; + var->red.length = 8; + var->green.offset = 8; + var->green.length = 8; + var->blue.offset = 0; + var->blue.length = 8; + var->transp.offset = 24; + var->transp.length = 8; + } + *visual = FB_VISUAL_TRUECOLOR; + *video_cmap_len = 16; + return 0; +} + +static int matroxfb_dh_open(struct fb_info* info, int user) { +#define m2info (container_of(info, struct matroxfb_dh_fb_info, fbcon)) + struct matrox_fb_info *minfo = m2info->primary_dev; + + if (minfo) { + int err; + + if (minfo->dead) { + return -ENXIO; + } + err = minfo->fbops.fb_open(&minfo->fbcon, user); + if (err) { + return err; + } + } + return 0; +#undef m2info +} + +static int matroxfb_dh_release(struct fb_info* info, int user) { +#define m2info (container_of(info, struct matroxfb_dh_fb_info, fbcon)) + int err = 0; + struct matrox_fb_info *minfo = m2info->primary_dev; + + if (minfo) { + err = minfo->fbops.fb_release(&minfo->fbcon, user); + } + return err; +#undef m2info +} + +/* + * This function is called before the register_framebuffer so + * no locking is needed. + */ +static void matroxfb_dh_init_fix(struct matroxfb_dh_fb_info *m2info) +{ + struct fb_fix_screeninfo *fix = &m2info->fbcon.fix; + + strcpy(fix->id, "MATROX DH"); + + fix->smem_start = m2info->video.base; + fix->smem_len = m2info->video.len_usable; + fix->ypanstep = 1; + fix->ywrapstep = 0; + fix->xpanstep = 8; /* TBD */ + fix->mmio_start = m2info->mmio.base; + fix->mmio_len = m2info->mmio.len; + fix->accel = 0; /* no accel... */ +} + +static int matroxfb_dh_check_var(struct fb_var_screeninfo* var, struct fb_info* info) { +#define m2info (container_of(info, struct matroxfb_dh_fb_info, fbcon)) + int visual; + int cmap_len; + int mode; + + return matroxfb_dh_decode_var(m2info, var, &visual, &cmap_len, &mode); +#undef m2info +} + +static int matroxfb_dh_set_par(struct fb_info* info) { +#define m2info (container_of(info, struct matroxfb_dh_fb_info, fbcon)) + int visual; + int cmap_len; + int mode; + int err; + struct fb_var_screeninfo* var = &info->var; + struct matrox_fb_info *minfo = m2info->primary_dev; + + if ((err = matroxfb_dh_decode_var(m2info, var, &visual, &cmap_len, &mode)) != 0) + return err; + /* cmap */ + { + m2info->fbcon.screen_base = vaddr_va(m2info->video.vbase); + m2info->fbcon.fix.visual = visual; + m2info->fbcon.fix.type = FB_TYPE_PACKED_PIXELS; + m2info->fbcon.fix.type_aux = 0; + m2info->fbcon.fix.line_length = (var->xres_virtual * var->bits_per_pixel) >> 3; + } + { + struct my_timming mt; + unsigned int pos; + int out; + int cnt; + + matroxfb_var2my(&m2info->fbcon.var, &mt); + mt.crtc = MATROXFB_SRC_CRTC2; + /* CRTC2 delay */ + mt.delay = 34; + + pos = (m2info->fbcon.var.yoffset * m2info->fbcon.var.xres_virtual + m2info->fbcon.var.xoffset) * m2info->fbcon.var.bits_per_pixel >> 3; + pos += m2info->video.offbase; + cnt = 0; + down_read(&minfo->altout.lock); + for (out = 0; out < MATROXFB_MAX_OUTPUTS; out++) { + if (minfo->outputs[out].src == MATROXFB_SRC_CRTC2) { + cnt++; + if (minfo->outputs[out].output->compute) { + minfo->outputs[out].output->compute(minfo->outputs[out].data, &mt); + } + } + } + minfo->crtc2.pixclock = mt.pixclock; + minfo->crtc2.mnp = mt.mnp; + up_read(&minfo->altout.lock); + if (cnt) { + matroxfb_dh_restore(m2info, &mt, mode, pos); + } else { + matroxfb_dh_disable(m2info); + } + DAC1064_global_init(minfo); + DAC1064_global_restore(minfo); + down_read(&minfo->altout.lock); + for (out = 0; out < MATROXFB_MAX_OUTPUTS; out++) { + if (minfo->outputs[out].src == MATROXFB_SRC_CRTC2 && + minfo->outputs[out].output->program) { + minfo->outputs[out].output->program(minfo->outputs[out].data); + } + } + for (out = 0; out < MATROXFB_MAX_OUTPUTS; out++) { + if (minfo->outputs[out].src == MATROXFB_SRC_CRTC2 && + minfo->outputs[out].output->start) { + minfo->outputs[out].output->start(minfo->outputs[out].data); + } + } + up_read(&minfo->altout.lock); + } + m2info->initialized = 1; + return 0; +#undef m2info +} + +static int matroxfb_dh_pan_display(struct fb_var_screeninfo* var, struct fb_info* info) { +#define m2info (container_of(info, struct matroxfb_dh_fb_info, fbcon)) + matroxfb_dh_pan_var(m2info, var); + return 0; +#undef m2info +} + +static int matroxfb_dh_get_vblank(const struct matroxfb_dh_fb_info* m2info, struct fb_vblank* vblank) { + struct matrox_fb_info *minfo = m2info->primary_dev; + + matroxfb_enable_irq(minfo, 0); + memset(vblank, 0, sizeof(*vblank)); + vblank->flags = FB_VBLANK_HAVE_VCOUNT | FB_VBLANK_HAVE_VBLANK; + /* mask out reserved bits + field number (odd/even) */ + vblank->vcount = mga_inl(0x3C48) & 0x000007FF; + /* compatibility stuff */ + if (vblank->vcount >= m2info->fbcon.var.yres) + vblank->flags |= FB_VBLANK_VBLANKING; + if (test_bit(0, &minfo->irq_flags)) { + vblank->flags |= FB_VBLANK_HAVE_COUNT; + /* Only one writer, aligned int value... + it should work without lock and without atomic_t */ + vblank->count = minfo->crtc2.vsync.cnt; + } + return 0; +} + +static int matroxfb_dh_ioctl(struct fb_info *info, + unsigned int cmd, + unsigned long arg) +{ +#define m2info (container_of(info, struct matroxfb_dh_fb_info, fbcon)) + struct matrox_fb_info *minfo = m2info->primary_dev; + + DBG(__func__) + + switch (cmd) { + case FBIOGET_VBLANK: + { + struct fb_vblank vblank; + int err; + + err = matroxfb_dh_get_vblank(m2info, &vblank); + if (err) + return err; + if (copy_to_user((void __user *)arg, &vblank, sizeof(vblank))) + return -EFAULT; + return 0; + } + case FBIO_WAITFORVSYNC: + { + u_int32_t crt; + + if (get_user(crt, (u_int32_t __user *)arg)) + return -EFAULT; + + if (crt != 0) + return -ENODEV; + return matroxfb_wait_for_sync(minfo, 1); + } + case MATROXFB_SET_OUTPUT_MODE: + case MATROXFB_GET_OUTPUT_MODE: + case MATROXFB_GET_ALL_OUTPUTS: + { + return minfo->fbcon.fbops->fb_ioctl(&minfo->fbcon, cmd, arg); + } + case MATROXFB_SET_OUTPUT_CONNECTION: + { + u_int32_t tmp; + int out; + int changes; + + if (get_user(tmp, (u_int32_t __user *)arg)) + return -EFAULT; + for (out = 0; out < 32; out++) { + if (tmp & (1 << out)) { + if (out >= MATROXFB_MAX_OUTPUTS) + return -ENXIO; + if (!minfo->outputs[out].output) + return -ENXIO; + switch (minfo->outputs[out].src) { + case MATROXFB_SRC_NONE: + case MATROXFB_SRC_CRTC2: + break; + default: + return -EBUSY; + } + } + } + if (minfo->devflags.panellink) { + if (tmp & MATROXFB_OUTPUT_CONN_DFP) + return -EINVAL; + if ((minfo->outputs[2].src == MATROXFB_SRC_CRTC1) && tmp) + return -EBUSY; + } + changes = 0; + for (out = 0; out < MATROXFB_MAX_OUTPUTS; out++) { + if (tmp & (1 << out)) { + if (minfo->outputs[out].src != MATROXFB_SRC_CRTC2) { + changes = 1; + minfo->outputs[out].src = MATROXFB_SRC_CRTC2; + } + } else if (minfo->outputs[out].src == MATROXFB_SRC_CRTC2) { + changes = 1; + minfo->outputs[out].src = MATROXFB_SRC_NONE; + } + } + if (!changes) + return 0; + matroxfb_dh_set_par(info); + return 0; + } + case MATROXFB_GET_OUTPUT_CONNECTION: + { + u_int32_t conn = 0; + int out; + + for (out = 0; out < MATROXFB_MAX_OUTPUTS; out++) { + if (minfo->outputs[out].src == MATROXFB_SRC_CRTC2) { + conn |= 1 << out; + } + } + if (put_user(conn, (u_int32_t __user *)arg)) + return -EFAULT; + return 0; + } + case MATROXFB_GET_AVAILABLE_OUTPUTS: + { + u_int32_t tmp = 0; + int out; + + for (out = 0; out < MATROXFB_MAX_OUTPUTS; out++) { + if (minfo->outputs[out].output) { + switch (minfo->outputs[out].src) { + case MATROXFB_SRC_NONE: + case MATROXFB_SRC_CRTC2: + tmp |= 1 << out; + break; + } + } + } + if (minfo->devflags.panellink) { + tmp &= ~MATROXFB_OUTPUT_CONN_DFP; + if (minfo->outputs[2].src == MATROXFB_SRC_CRTC1) { + tmp = 0; + } + } + if (put_user(tmp, (u_int32_t __user *)arg)) + return -EFAULT; + return 0; + } + } + return -ENOTTY; +#undef m2info +} + +static int matroxfb_dh_blank(int blank, struct fb_info* info) { +#define m2info (container_of(info, struct matroxfb_dh_fb_info, fbcon)) + switch (blank) { + case 1: + case 2: + case 3: + case 4: + default:; + } + /* do something... */ + return 0; +#undef m2info +} + +static const struct fb_ops matroxfb_dh_ops = { + .owner = THIS_MODULE, + .fb_open = matroxfb_dh_open, + .fb_release = matroxfb_dh_release, + .fb_check_var = matroxfb_dh_check_var, + .fb_set_par = matroxfb_dh_set_par, + .fb_setcolreg = matroxfb_dh_setcolreg, + .fb_pan_display =matroxfb_dh_pan_display, + .fb_blank = matroxfb_dh_blank, + .fb_ioctl = matroxfb_dh_ioctl, + .fb_fillrect = cfb_fillrect, + .fb_copyarea = cfb_copyarea, + .fb_imageblit = cfb_imageblit, +}; + +static struct fb_var_screeninfo matroxfb_dh_defined = { + 640,480,640,480,/* W,H, virtual W,H */ + 0,0, /* offset */ + 32, /* depth */ + 0, /* gray */ + {0,0,0}, /* R */ + {0,0,0}, /* G */ + {0,0,0}, /* B */ + {0,0,0}, /* alpha */ + 0, /* nonstd */ + FB_ACTIVATE_NOW, + -1,-1, /* display size */ + 0, /* accel flags */ + 39721L,48L,16L,33L,10L, + 96L,2,0, /* no sync info */ + FB_VMODE_NONINTERLACED, +}; + +static int matroxfb_dh_regit(const struct matrox_fb_info *minfo, + struct matroxfb_dh_fb_info *m2info) +{ +#define minfo (m2info->primary_dev) + void* oldcrtc2; + + m2info->fbcon.fbops = &matroxfb_dh_ops; + m2info->fbcon.flags = FBINFO_FLAG_DEFAULT; + m2info->fbcon.flags |= FBINFO_HWACCEL_XPAN | + FBINFO_HWACCEL_YPAN; + m2info->fbcon.pseudo_palette = m2info->cmap; + fb_alloc_cmap(&m2info->fbcon.cmap, 256, 1); + + if (mem < 64) + mem *= 1024; + if (mem < 64*1024) + mem *= 1024; + mem &= ~0x00000FFF; /* PAGE_MASK? */ + if (minfo->video.len_usable + mem <= minfo->video.len) + m2info->video.offbase = minfo->video.len - mem; + else if (minfo->video.len < mem) { + return -ENOMEM; + } else { /* check yres on first head... */ + m2info->video.borrowed = mem; + minfo->video.len_usable -= mem; + m2info->video.offbase = minfo->video.len_usable; + } + m2info->video.base = minfo->video.base + m2info->video.offbase; + m2info->video.len = m2info->video.len_usable = m2info->video.len_maximum = mem; + m2info->video.vbase.vaddr = vaddr_va(minfo->video.vbase) + m2info->video.offbase; + m2info->mmio.base = minfo->mmio.base; + m2info->mmio.vbase = minfo->mmio.vbase; + m2info->mmio.len = minfo->mmio.len; + + matroxfb_dh_init_fix(m2info); + if (register_framebuffer(&m2info->fbcon)) { + return -ENXIO; + } + if (!m2info->initialized) + fb_set_var(&m2info->fbcon, &matroxfb_dh_defined); + down_write(&minfo->crtc2.lock); + oldcrtc2 = minfo->crtc2.info; + minfo->crtc2.info = m2info; + up_write(&minfo->crtc2.lock); + if (oldcrtc2) { + printk(KERN_ERR "matroxfb_crtc2: Internal consistency check failed: crtc2 already present: %p\n", + oldcrtc2); + } + return 0; +#undef minfo +} + +/* ************************** */ + +static int matroxfb_dh_registerfb(struct matroxfb_dh_fb_info* m2info) { +#define minfo (m2info->primary_dev) + if (matroxfb_dh_regit(minfo, m2info)) { + printk(KERN_ERR "matroxfb_crtc2: secondary head failed to register\n"); + return -1; + } + printk(KERN_INFO "matroxfb_crtc2: secondary head of fb%u was registered as fb%u\n", + minfo->fbcon.node, m2info->fbcon.node); + m2info->fbcon_registered = 1; + return 0; +#undef minfo +} + +static void matroxfb_dh_deregisterfb(struct matroxfb_dh_fb_info* m2info) { +#define minfo (m2info->primary_dev) + if (m2info->fbcon_registered) { + int id; + struct matroxfb_dh_fb_info* crtc2; + + down_write(&minfo->crtc2.lock); + crtc2 = minfo->crtc2.info; + if (crtc2 == m2info) + minfo->crtc2.info = NULL; + up_write(&minfo->crtc2.lock); + if (crtc2 != m2info) { + printk(KERN_ERR "matroxfb_crtc2: Internal consistency check failed: crtc2 mismatch at unload: %p != %p\n", + crtc2, m2info); + printk(KERN_ERR "matroxfb_crtc2: Expect kernel crash after module unload.\n"); + return; + } + id = m2info->fbcon.node; + unregister_framebuffer(&m2info->fbcon); + /* return memory back to primary head */ + minfo->video.len_usable += m2info->video.borrowed; + printk(KERN_INFO "matroxfb_crtc2: fb%u unregistered\n", id); + m2info->fbcon_registered = 0; + } +#undef minfo +} + +static void* matroxfb_crtc2_probe(struct matrox_fb_info* minfo) { + struct matroxfb_dh_fb_info* m2info; + + /* hardware is CRTC2 incapable... */ + if (!minfo->devflags.crtc2) + return NULL; + m2info = kzalloc(sizeof(*m2info), GFP_KERNEL); + if (!m2info) + return NULL; + + m2info->primary_dev = minfo; + if (matroxfb_dh_registerfb(m2info)) { + kfree(m2info); + printk(KERN_ERR "matroxfb_crtc2: CRTC2 framebuffer failed to register\n"); + return NULL; + } + return m2info; +} + +static void matroxfb_crtc2_remove(struct matrox_fb_info* minfo, void* crtc2) { + matroxfb_dh_deregisterfb(crtc2); + kfree(crtc2); +} + +static struct matroxfb_driver crtc2 = { + .name = "Matrox G400 CRTC2", + .probe = matroxfb_crtc2_probe, + .remove = matroxfb_crtc2_remove }; + +static int matroxfb_crtc2_init(void) { + if (fb_get_options("matrox_crtc2fb", NULL)) + return -ENODEV; + + matroxfb_register_driver(&crtc2); + return 0; +} + +static void matroxfb_crtc2_exit(void) { + matroxfb_unregister_driver(&crtc2); +} + +MODULE_AUTHOR("(c) 1999-2002 Petr Vandrovec "); +MODULE_DESCRIPTION("Matrox G400 CRTC2 driver"); +MODULE_LICENSE("GPL"); +module_init(matroxfb_crtc2_init); +module_exit(matroxfb_crtc2_exit); +/* we do not have __setup() yet */ -- cgit v1.2.3