mirror of
https://git.FreeBSD.org/src.git
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aa1f683bf3
This patch is taken from original drm-3.8 code. Differential Revision: https://reviews.freebsd.org/D8454 MFC after: 3 weeks
500 lines
11 KiB
C
500 lines
11 KiB
C
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <dev/drm2/drmP.h>
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#include <dev/agp/agpreg.h>
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#include <dev/pci/pcireg.h>
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devclass_t drm_devclass;
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MALLOC_DEFINE(DRM_MEM_DMA, "drm_dma", "DRM DMA Data Structures");
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MALLOC_DEFINE(DRM_MEM_SAREA, "drm_sarea", "DRM SAREA Data Structures");
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MALLOC_DEFINE(DRM_MEM_DRIVER, "drm_driver", "DRM DRIVER Data Structures");
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MALLOC_DEFINE(DRM_MEM_MAGIC, "drm_magic", "DRM MAGIC Data Structures");
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MALLOC_DEFINE(DRM_MEM_MINOR, "drm_minor", "DRM MINOR Data Structures");
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MALLOC_DEFINE(DRM_MEM_IOCTLS, "drm_ioctls", "DRM IOCTL Data Structures");
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MALLOC_DEFINE(DRM_MEM_MAPS, "drm_maps", "DRM MAP Data Structures");
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MALLOC_DEFINE(DRM_MEM_BUFS, "drm_bufs", "DRM BUFFER Data Structures");
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MALLOC_DEFINE(DRM_MEM_SEGS, "drm_segs", "DRM SEGMENTS Data Structures");
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MALLOC_DEFINE(DRM_MEM_PAGES, "drm_pages", "DRM PAGES Data Structures");
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MALLOC_DEFINE(DRM_MEM_FILES, "drm_files", "DRM FILE Data Structures");
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MALLOC_DEFINE(DRM_MEM_QUEUES, "drm_queues", "DRM QUEUE Data Structures");
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MALLOC_DEFINE(DRM_MEM_CMDS, "drm_cmds", "DRM COMMAND Data Structures");
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MALLOC_DEFINE(DRM_MEM_MAPPINGS, "drm_mapping", "DRM MAPPING Data Structures");
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MALLOC_DEFINE(DRM_MEM_BUFLISTS, "drm_buflists", "DRM BUFLISTS Data Structures");
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MALLOC_DEFINE(DRM_MEM_AGPLISTS, "drm_agplists", "DRM AGPLISTS Data Structures");
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MALLOC_DEFINE(DRM_MEM_CTXBITMAP, "drm_ctxbitmap",
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"DRM CTXBITMAP Data Structures");
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MALLOC_DEFINE(DRM_MEM_SGLISTS, "drm_sglists", "DRM SGLISTS Data Structures");
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MALLOC_DEFINE(DRM_MEM_MM, "drm_sman", "DRM MEMORY MANAGER Data Structures");
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MALLOC_DEFINE(DRM_MEM_HASHTAB, "drm_hashtab", "DRM HASHTABLE Data Structures");
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MALLOC_DEFINE(DRM_MEM_KMS, "drm_kms", "DRM KMS Data Structures");
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MALLOC_DEFINE(DRM_MEM_VBLANK, "drm_vblank", "DRM VBLANK Handling Data");
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const char *fb_mode_option = NULL;
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#define NSEC_PER_USEC 1000L
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#define NSEC_PER_SEC 1000000000L
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int64_t
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timeval_to_ns(const struct timeval *tv)
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{
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return ((int64_t)tv->tv_sec * NSEC_PER_SEC) +
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tv->tv_usec * NSEC_PER_USEC;
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}
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struct timeval
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ns_to_timeval(const int64_t nsec)
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{
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struct timeval tv;
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long rem;
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if (nsec == 0) {
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tv.tv_sec = 0;
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tv.tv_usec = 0;
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return (tv);
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}
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tv.tv_sec = nsec / NSEC_PER_SEC;
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rem = nsec % NSEC_PER_SEC;
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if (rem < 0) {
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tv.tv_sec--;
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rem += NSEC_PER_SEC;
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}
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tv.tv_usec = rem / 1000;
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return (tv);
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}
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/* Copied from OFED. */
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unsigned long drm_linux_timer_hz_mask;
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static void
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drm_linux_timer_init(void *arg)
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{
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/*
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* Compute an internal HZ value which can divide 2**32 to
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* avoid timer rounding problems when the tick value wraps
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* around 2**32:
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*/
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drm_linux_timer_hz_mask = 1;
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while (drm_linux_timer_hz_mask < (unsigned long)hz)
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drm_linux_timer_hz_mask *= 2;
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drm_linux_timer_hz_mask--;
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}
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SYSINIT(drm_linux_timer, SI_SUB_DRIVERS, SI_ORDER_FIRST, drm_linux_timer_init, NULL);
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static const drm_pci_id_list_t *
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drm_find_description(int vendor, int device, const drm_pci_id_list_t *idlist)
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{
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int i = 0;
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for (i = 0; idlist[i].vendor != 0; i++) {
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if ((idlist[i].vendor == vendor) &&
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((idlist[i].device == device) ||
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(idlist[i].device == 0))) {
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return (&idlist[i]);
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}
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}
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return (NULL);
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}
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/*
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* drm_probe_helper: called by a driver at the end of its probe
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* method.
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*/
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int
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drm_probe_helper(device_t kdev, const drm_pci_id_list_t *idlist)
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{
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const drm_pci_id_list_t *id_entry;
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int vendor, device;
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vendor = pci_get_vendor(kdev);
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device = pci_get_device(kdev);
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if (pci_get_class(kdev) != PCIC_DISPLAY ||
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(pci_get_subclass(kdev) != PCIS_DISPLAY_VGA &&
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pci_get_subclass(kdev) != PCIS_DISPLAY_OTHER))
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return (-ENXIO);
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id_entry = drm_find_description(vendor, device, idlist);
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if (id_entry != NULL) {
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if (device_get_desc(kdev) == NULL) {
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DRM_DEBUG("%s desc: %s\n",
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device_get_nameunit(kdev), id_entry->name);
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device_set_desc(kdev, id_entry->name);
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}
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return (0);
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}
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return (-ENXIO);
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}
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/*
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* drm_attach_helper: called by a driver at the end of its attach
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* method.
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*/
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int
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drm_attach_helper(device_t kdev, const drm_pci_id_list_t *idlist,
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struct drm_driver *driver)
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{
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struct drm_device *dev;
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int vendor, device;
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int ret;
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dev = device_get_softc(kdev);
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vendor = pci_get_vendor(kdev);
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device = pci_get_device(kdev);
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dev->id_entry = drm_find_description(vendor, device, idlist);
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ret = drm_get_pci_dev(kdev, dev, driver);
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return (ret);
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}
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int
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drm_generic_suspend(device_t kdev)
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{
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struct drm_device *dev;
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int error;
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DRM_DEBUG_KMS("Starting suspend\n");
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dev = device_get_softc(kdev);
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if (dev->driver->suspend) {
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pm_message_t state;
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state.event = PM_EVENT_SUSPEND;
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error = -dev->driver->suspend(dev, state);
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if (error)
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goto out;
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}
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error = bus_generic_suspend(kdev);
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out:
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DRM_DEBUG_KMS("Finished suspend: %d\n", error);
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return error;
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}
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int
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drm_generic_resume(device_t kdev)
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{
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struct drm_device *dev;
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int error;
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DRM_DEBUG_KMS("Starting resume\n");
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dev = device_get_softc(kdev);
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if (dev->driver->resume) {
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error = -dev->driver->resume(dev);
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if (error)
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goto out;
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}
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error = bus_generic_resume(kdev);
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out:
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DRM_DEBUG_KMS("Finished resume: %d\n", error);
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return error;
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}
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int
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drm_generic_detach(device_t kdev)
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{
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struct drm_device *dev;
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int i;
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dev = device_get_softc(kdev);
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drm_put_dev(dev);
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/* Clean up PCI resources allocated by drm_bufs.c. We're not really
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* worried about resource consumption while the DRM is inactive (between
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* lastclose and firstopen or unload) because these aren't actually
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* taking up KVA, just keeping the PCI resource allocated.
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*/
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for (i = 0; i < DRM_MAX_PCI_RESOURCE; i++) {
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if (dev->pcir[i] == NULL)
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continue;
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bus_release_resource(dev->dev, SYS_RES_MEMORY,
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dev->pcirid[i], dev->pcir[i]);
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dev->pcir[i] = NULL;
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}
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if (pci_disable_busmaster(dev->dev))
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DRM_ERROR("Request to disable bus-master failed.\n");
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return (0);
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}
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int
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drm_add_busid_modesetting(struct drm_device *dev, struct sysctl_ctx_list *ctx,
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struct sysctl_oid *top)
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{
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struct sysctl_oid *oid;
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snprintf(dev->busid_str, sizeof(dev->busid_str),
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"pci:%04x:%02x:%02x.%d", dev->pci_domain, dev->pci_bus,
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dev->pci_slot, dev->pci_func);
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oid = SYSCTL_ADD_STRING(ctx, SYSCTL_CHILDREN(top), OID_AUTO, "busid",
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CTLFLAG_RD, dev->busid_str, 0, NULL);
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if (oid == NULL)
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return (-ENOMEM);
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dev->modesetting = (dev->driver->driver_features & DRIVER_MODESET) != 0;
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oid = SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(top), OID_AUTO,
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"modesetting", CTLFLAG_RD, &dev->modesetting, 0, NULL);
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if (oid == NULL)
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return (-ENOMEM);
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return (0);
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}
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static int
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drm_device_find_capability(struct drm_device *dev, int cap)
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{
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return (pci_find_cap(dev->dev, cap, NULL) == 0);
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}
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int
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drm_pci_device_is_agp(struct drm_device *dev)
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{
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if (dev->driver->device_is_agp != NULL) {
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int ret;
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/* device_is_agp returns a tristate, 0 = not AGP, 1 = definitely
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* AGP, 2 = fall back to PCI capability
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*/
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ret = (*dev->driver->device_is_agp)(dev);
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if (ret != DRM_MIGHT_BE_AGP)
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return ret;
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}
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return (drm_device_find_capability(dev, PCIY_AGP));
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}
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int
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drm_pci_device_is_pcie(struct drm_device *dev)
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{
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return (drm_device_find_capability(dev, PCIY_EXPRESS));
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}
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static bool
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dmi_found(const struct dmi_system_id *dsi)
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{
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char *hw_vendor, *hw_prod;
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int i, slot;
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bool res;
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hw_vendor = kern_getenv("smbios.planar.maker");
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hw_prod = kern_getenv("smbios.planar.product");
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res = true;
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for (i = 0; i < nitems(dsi->matches); i++) {
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slot = dsi->matches[i].slot;
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switch (slot) {
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case DMI_NONE:
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break;
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case DMI_SYS_VENDOR:
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case DMI_BOARD_VENDOR:
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if (hw_vendor != NULL &&
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!strcmp(hw_vendor, dsi->matches[i].substr)) {
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break;
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} else {
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res = false;
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goto out;
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}
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case DMI_PRODUCT_NAME:
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case DMI_BOARD_NAME:
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if (hw_prod != NULL &&
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!strcmp(hw_prod, dsi->matches[i].substr)) {
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break;
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} else {
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res = false;
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goto out;
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}
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default:
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res = false;
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goto out;
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}
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}
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out:
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freeenv(hw_vendor);
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freeenv(hw_prod);
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return (res);
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}
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bool
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dmi_check_system(const struct dmi_system_id *sysid)
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{
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const struct dmi_system_id *dsi;
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bool res;
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for (res = false, dsi = sysid; dsi->matches[0].slot != 0 ; dsi++) {
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if (dmi_found(dsi)) {
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res = true;
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if (dsi->callback != NULL && dsi->callback(dsi))
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break;
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}
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}
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return (res);
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}
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#if __OS_HAS_MTRR
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int
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drm_mtrr_add(unsigned long offset, unsigned long size, unsigned int flags)
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{
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int act;
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struct mem_range_desc mrdesc;
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mrdesc.mr_base = offset;
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mrdesc.mr_len = size;
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mrdesc.mr_flags = flags;
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act = MEMRANGE_SET_UPDATE;
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strlcpy(mrdesc.mr_owner, "drm", sizeof(mrdesc.mr_owner));
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return (-mem_range_attr_set(&mrdesc, &act));
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}
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int
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drm_mtrr_del(int handle __unused, unsigned long offset, unsigned long size,
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unsigned int flags)
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{
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int act;
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struct mem_range_desc mrdesc;
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mrdesc.mr_base = offset;
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mrdesc.mr_len = size;
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mrdesc.mr_flags = flags;
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act = MEMRANGE_SET_REMOVE;
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strlcpy(mrdesc.mr_owner, "drm", sizeof(mrdesc.mr_owner));
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return (-mem_range_attr_set(&mrdesc, &act));
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}
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#endif
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void
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drm_clflush_pages(vm_page_t *pages, unsigned long num_pages)
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{
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#if defined(__i386__) || defined(__amd64__)
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pmap_invalidate_cache_pages(pages, num_pages);
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#else
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DRM_ERROR("drm_clflush_pages not implemented on this architecture");
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#endif
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}
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void
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drm_clflush_virt_range(char *addr, unsigned long length)
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{
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#if defined(__i386__) || defined(__amd64__)
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pmap_invalidate_cache_range((vm_offset_t)addr,
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(vm_offset_t)addr + length, TRUE);
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#else
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DRM_ERROR("drm_clflush_virt_range not implemented on this architecture");
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#endif
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}
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void
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hex_dump_to_buffer(const void *buf, size_t len, int rowsize, int groupsize,
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char *linebuf, size_t linebuflen, bool ascii __unused)
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{
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int i, j, c;
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i = j = 0;
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while (i < len && j <= linebuflen) {
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c = ((const char *)buf)[i];
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if (i != 0) {
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if (i % rowsize == 0) {
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/* Newline required. */
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sprintf(linebuf + j, "\n");
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++j;
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} else if (i % groupsize == 0) {
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/* Space required. */
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sprintf(linebuf + j, " ");
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++j;
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}
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}
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if (j > linebuflen - 4)
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break;
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sprintf(linebuf + j, "%02X", c);
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j += 2;
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++i;
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}
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if (j <= linebuflen)
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sprintf(linebuf + j, "\n");
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}
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#if DRM_LINUX
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#include <sys/sysproto.h>
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MODULE_DEPEND(DRIVER_NAME, linux, 1, 1, 1);
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#define LINUX_IOCTL_DRM_MIN 0x6400
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#define LINUX_IOCTL_DRM_MAX 0x64ff
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static linux_ioctl_function_t drm_linux_ioctl;
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static struct linux_ioctl_handler drm_handler = {drm_linux_ioctl,
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LINUX_IOCTL_DRM_MIN, LINUX_IOCTL_DRM_MAX};
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/* The bits for in/out are switched on Linux */
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#define LINUX_IOC_IN IOC_OUT
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#define LINUX_IOC_OUT IOC_IN
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static int
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drm_linux_ioctl(DRM_STRUCTPROC *p, struct linux_ioctl_args* args)
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{
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int error;
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int cmd = args->cmd;
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args->cmd &= ~(LINUX_IOC_IN | LINUX_IOC_OUT);
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if (cmd & LINUX_IOC_IN)
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args->cmd |= IOC_IN;
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if (cmd & LINUX_IOC_OUT)
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args->cmd |= IOC_OUT;
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error = ioctl(p, (struct ioctl_args *)args);
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return error;
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}
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#endif /* DRM_LINUX */
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static int
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drm_modevent(module_t mod, int type, void *data)
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{
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switch (type) {
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case MOD_LOAD:
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TUNABLE_INT_FETCH("drm.debug", &drm_debug);
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TUNABLE_INT_FETCH("drm.notyet", &drm_notyet);
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break;
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}
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return (0);
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}
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static moduledata_t drm_mod = {
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"drmn",
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drm_modevent,
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0
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};
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DECLARE_MODULE(drmn, drm_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
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MODULE_VERSION(drmn, 1);
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MODULE_DEPEND(drmn, agp, 1, 1, 1);
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MODULE_DEPEND(drmn, pci, 1, 1, 1);
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MODULE_DEPEND(drmn, mem, 1, 1, 1);
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MODULE_DEPEND(drmn, iicbus, 1, 1, 1);
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