| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Linus Torvalds (pre-git) | 662 | 52.75% | 12 | 35.29% |
| Geert Uytterhoeven | 506 | 40.32% | 6 | 17.65% |
| Yang Yingliang | 46 | 3.67% | 2 | 5.88% |
| Thorsten Blum | 11 | 0.88% | 2 | 5.88% |
| Al Viro | 6 | 0.48% | 1 | 2.94% |
| Linus Torvalds | 6 | 0.48% | 2 | 5.88% |
| Aleksa Vučković | 4 | 0.32% | 3 | 8.82% |
| Alejandro Martinez Ruiz | 4 | 0.32% | 1 | 2.94% |
| Kay Sievers | 4 | 0.32% | 1 | 2.94% |
| Christoph Hellwig | 2 | 0.16% | 1 | 2.94% |
| Salah Triki | 2 | 0.16% | 1 | 2.94% |
| Kees Cook | 1 | 0.08% | 1 | 2.94% |
| Greg Kroah-Hartman | 1 | 0.08% | 1 | 2.94% |
| Total | 1255 | 34 |
// SPDX-License-Identifier: GPL-2.0 /* Code to support devices on the DIO and DIO-II bus * Copyright (C) 05/1998 Peter Maydell <pmaydell@chiark.greenend.org.uk> * Copyright (C) 2004 Jochen Friedrich <jochen@scram.de> * * This code has basically these routines at the moment: * int dio_find(u_int deviceid) * Search the list of DIO devices and return the select code * of the next unconfigured device found that matches the given device ID. * Note that the deviceid parameter should be the encoded ID. * This means that framebuffers should pass it as * DIO_ENCODE_ID(DIO_ID_FBUFFER,DIO_ID2_TOPCAT) * (or whatever); everybody else just uses DIO_ID_FOOBAR. * unsigned long dio_scodetophysaddr(int scode) * Return the physical address corresponding to the given select code. * int dio_scodetoipl(int scode) * Every DIO card has a fixed interrupt priority level. This function * returns it, whatever it is. * const char *dio_scodetoname(int scode) * Return a character string describing this board [might be "" if * not CONFIG_DIO_CONSTANTS] * void dio_config_board(int scode) mark board as configured in the list * void dio_unconfig_board(int scode) mark board as no longer configured * * This file is based on the way the Amiga port handles Zorro II cards, * although we aren't so complicated... */ #include <linux/module.h> #include <linux/string.h> #include <linux/types.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/dio.h> #include <linux/slab.h> /* kmalloc() */ #include <linux/uaccess.h> #include <linux/io.h> /* readb() */ struct dio_bus dio_bus = { .resources = { /* DIO range */ { .name = "DIO mem", .start = 0x00600000, .end = 0x007fffff }, /* DIO-II range */ { .name = "DIO-II mem", .start = 0x01000000, .end = 0x1fffffff } }, .name = "DIO bus" }; /* not a real config option yet! */ #define CONFIG_DIO_CONSTANTS #ifdef CONFIG_DIO_CONSTANTS /* We associate each numeric ID with an appropriate descriptive string * using a constant array of these structs. * FIXME: we should be able to arrange to throw away most of the strings * using the initdata stuff. Then we wouldn't need to worry about * carrying them around... * I think we do this by copying them into newly kmalloc()ed memory and * marking the names[] array as .initdata ? */ struct dioname { int id; const char *name; }; /* useful macro */ #define DIONAME(x) { DIO_ID_##x, DIO_DESC_##x } #define DIOFBNAME(x) { DIO_ENCODE_ID(DIO_ID_FBUFFER, DIO_ID2_##x), DIO_DESC2_##x } static struct dioname names[] = { DIONAME(DCA0), DIONAME(DCA0REM), DIONAME(DCA1), DIONAME(DCA1REM), DIONAME(DCM), DIONAME(DCMREM), DIONAME(LAN), DIONAME(FHPIB), DIONAME(NHPIB), DIONAME(SCSI0), DIONAME(SCSI1), DIONAME(SCSI2), DIONAME(SCSI3), DIONAME(FBUFFER), DIONAME(PARALLEL), DIONAME(VME), DIONAME(DCL), DIONAME(DCLREM), DIONAME(MISC0), DIONAME(MISC1), DIONAME(MISC2), DIONAME(MISC3), DIONAME(MISC4), DIONAME(MISC5), DIONAME(MISC6), DIONAME(MISC7), DIONAME(MISC8), DIONAME(MISC9), DIONAME(MISC10), DIONAME(MISC11), DIONAME(MISC12), DIONAME(MISC13), DIOFBNAME(GATORBOX), DIOFBNAME(TOPCAT), DIOFBNAME(RENAISSANCE), DIOFBNAME(LRCATSEYE), DIOFBNAME(HRCCATSEYE), DIOFBNAME(HRMCATSEYE), DIOFBNAME(DAVINCI), DIOFBNAME(XXXCATSEYE), DIOFBNAME(HYPERION), DIOFBNAME(XGENESIS), DIOFBNAME(TIGER), DIOFBNAME(YGENESIS) }; #undef DIONAME #undef DIOFBNAME static const char unknowndioname[] = "unknown DIO board, please email linux-m68k@lists.linux-m68k.org"; static const char *dio_getname(int id) { /* return pointer to a constant string describing the board with given ID */ unsigned int i; for (i = 0; i < ARRAY_SIZE(names); i++) if (names[i].id == id) return names[i].name; return unknowndioname; } #else static char dio_no_name[] = { 0 }; #define dio_getname(_id) (dio_no_name) #endif /* CONFIG_DIO_CONSTANTS */ static void dio_dev_release(struct device *dev) { struct dio_dev *ddev = container_of(dev, typeof(struct dio_dev), dev); kfree(ddev); } int __init dio_find(int deviceid) { /* Called to find a DIO device before the full bus scan has run. * Only used by the console driver. */ int scode, id; u_char prid, secid, i; for (scode = 0; scode < DIO_SCMAX; scode++) { void *va; unsigned long pa; if (DIO_SCINHOLE(scode)) continue; pa = dio_scodetophysaddr(scode); if (!pa) continue; if (scode < DIOII_SCBASE) va = (void *)(pa + DIO_VIRADDRBASE); else va = ioremap(pa, PAGE_SIZE); if (copy_from_kernel_nofault(&i, (unsigned char *)va + DIO_IDOFF, 1)) { if (scode >= DIOII_SCBASE) iounmap(va); continue; /* no board present at that select code */ } prid = DIO_ID(va); if (DIO_NEEDSSECID(prid)) { secid = DIO_SECID(va); id = DIO_ENCODE_ID(prid, secid); } else id = prid; if (id == deviceid) { if (scode >= DIOII_SCBASE) iounmap(va); return scode; } } return -1; } /* This is the function that scans the DIO space and works out what * hardware is actually present. */ static int __init dio_init(void) { int scode; int i; struct dio_dev *dev; int error; if (!MACH_IS_HP300) return 0; pr_info("Scanning for DIO devices...\n"); /* Initialize the DIO bus */ INIT_LIST_HEAD(&dio_bus.devices); dev_set_name(&dio_bus.dev, "dio"); error = device_register(&dio_bus.dev); if (error) { pr_err("DIO: Error registering dio_bus\n"); return error; } /* Request all resources */ dio_bus.num_resources = (hp300_model == HP_320 ? 1 : 2); for (i = 0; i < dio_bus.num_resources; i++) request_resource(&iomem_resource, &dio_bus.resources[i]); /* Register all devices */ for (scode = 0; scode < DIO_SCMAX; ++scode) { u_char prid, secid = 0; /* primary, secondary ID bytes */ u_char *va; unsigned long pa; if (DIO_SCINHOLE(scode)) continue; pa = dio_scodetophysaddr(scode); if (!pa) continue; if (scode < DIOII_SCBASE) va = (void *)(pa + DIO_VIRADDRBASE); else va = ioremap(pa, PAGE_SIZE); if (copy_from_kernel_nofault(&i, (unsigned char *)va + DIO_IDOFF, 1)) { if (scode >= DIOII_SCBASE) iounmap(va); continue; /* no board present at that select code */ } /* Found a board, allocate it an entry in the list */ dev = kzalloc_obj(struct dio_dev); if (!dev) { if (scode >= DIOII_SCBASE) iounmap(va); return -ENOMEM; } dev->bus = &dio_bus; dev->dev.parent = &dio_bus.dev; dev->dev.bus = &dio_bus_type; dev->dev.release = dio_dev_release; dev->scode = scode; dev->resource.start = pa; dev->resource.end = pa + DIO_SIZE(scode, va); dev_set_name(&dev->dev, "%02x", scode); /* read the ID byte(s) and encode if necessary. */ prid = DIO_ID(va); if (DIO_NEEDSSECID(prid)) { secid = DIO_SECID(va); dev->id = DIO_ENCODE_ID(prid, secid); } else dev->id = prid; dev->ipl = DIO_IPL(va); strscpy(dev->name, dio_getname(dev->id)); if (DIO_NEEDSSECID(prid)) pr_info("select code %3d: ipl %u: ID %02X:%02X: %s\n", dev->scode, dev->ipl, prid, secid, dev->name); else pr_info("select code %3d: ipl %u: ID %02X: %s\n", dev->scode, dev->ipl, prid, dev->name); if (scode >= DIOII_SCBASE) iounmap(va); error = device_register(&dev->dev); if (error) { pr_err("DIO: Error registering device %s\n", dev->name); put_device(&dev->dev); continue; } error = dio_create_sysfs_dev_files(dev); if (error) dev_err(&dev->dev, "Error creating sysfs files\n"); } return 0; } subsys_initcall(dio_init); /* Bear in mind that this is called in the very early stages of initialisation * in order to get the address of the serial port for the console... */ unsigned long dio_scodetophysaddr(int scode) { if (scode >= DIOII_SCBASE) return (DIOII_BASE + (scode - 132) * DIOII_DEVSIZE); else if (scode > DIO_SCMAX || scode < 0) return 0; else if (DIO_SCINHOLE(scode)) return 0; return (DIO_BASE + scode * DIO_DEVSIZE); }