diff options
Diffstat (limited to 'bsd/drm')
| -rw-r--r-- | bsd/drm/Makefile | 17 | ||||
| -rw-r--r-- | bsd/drm/agpsupport.c | 271 | ||||
| -rw-r--r-- | bsd/drm/auth.c | 168 | ||||
| -rw-r--r-- | bsd/drm/bufs.c | 500 | ||||
| -rw-r--r-- | bsd/drm/context.c | 297 | ||||
| -rw-r--r-- | bsd/drm/dma.c | 534 | ||||
| -rw-r--r-- | bsd/drm/drawable.c | 50 | ||||
| -rw-r--r-- | bsd/drm/drmstat.c | 418 | ||||
| -rw-r--r-- | bsd/drm/fops.c | 260 | ||||
| -rw-r--r-- | bsd/drm/init.c | 101 | ||||
| -rw-r--r-- | bsd/drm/ioctl.c | 120 | ||||
| -rw-r--r-- | bsd/drm/lists.c | 258 | ||||
| -rw-r--r-- | bsd/drm/lock.c | 220 | ||||
| -rw-r--r-- | bsd/drm/memory.c | 458 | ||||
| -rw-r--r-- | bsd/drm/proc.c | 568 | ||||
| -rw-r--r-- | bsd/drm/sysctl.c | 554 | ||||
| -rw-r--r-- | bsd/drm/vm.c | 104 |
17 files changed, 4898 insertions, 0 deletions
diff --git a/bsd/drm/Makefile b/bsd/drm/Makefile new file mode 100644 index 00000000..6a70a5b0 --- /dev/null +++ b/bsd/drm/Makefile @@ -0,0 +1,17 @@ +# $FreeBSD$ + +KMOD = drm +SRCS = init.c memory.c auth.c context.c drawable.c bufs.c \ + lists.c lock.c ioctl.c fops.c vm.c dma.c sysctl.c \ + agpsupport.c +SRCS += device_if.h bus_if.h pci_if.h +CFLAGS += ${DEBUG_FLAGS} -I.. # -DDRM_AGP +KERN = /usr/src/sys + +@: + ln -sf /sys @ + +machine: + ln -sf /sys/i386/include machine + +.include "/usr/src/sys/conf/kmod.mk" diff --git a/bsd/drm/agpsupport.c b/bsd/drm/agpsupport.c new file mode 100644 index 00000000..53444c90 --- /dev/null +++ b/bsd/drm/agpsupport.c @@ -0,0 +1,271 @@ +/* agpsupport.c -- DRM support for AGP/GART backend + * Created: Mon Dec 13 09:56:45 1999 by faith@precisioninsight.com + * + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * Author: Rickard E. (Rik) Faith <faith@precisioninsight.com> + * + * $XFree86$ + * + */ + +#define __NO_VERSION__ +#include "drmP.h" + +#ifdef DRM_AGP + +#include <pci/agpvar.h> + +MODULE_DEPEND(drm, agp, 1, 1, 1); + +int +drm_agp_info(dev_t kdev, u_long cmd, caddr_t data, + int flags, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + struct agp_info *kern; + drm_agp_info_t info; + + if (!dev->agp->acquired) return EINVAL; + + kern = &dev->agp->info; + agp_get_info(dev->agp->agpdev, kern); + info.agp_version_major = 1; + info.agp_version_minor = 0; + info.mode = kern->ai_mode; + info.aperture_base = kern->ai_aperture_base; + info.aperture_size = kern->ai_aperture_size; + info.memory_allowed = kern->ai_memory_allowed; + info.memory_used = kern->ai_memory_used; + info.id_vendor = kern->ai_devid & 0xffff; + info.id_device = kern->ai_devid >> 16; + + *(drm_agp_info_t *) data = info; + return 0; +} + +int +drm_agp_acquire(dev_t kdev, u_long cmd, caddr_t data, + int flags, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + int retcode; + + if (dev->agp->acquired) return EINVAL; + retcode = agp_acquire(dev->agp->agpdev); + if (retcode) return retcode; + dev->agp->acquired = 1; + return 0; +} + +int +drm_agp_release(dev_t kdev, u_long cmd, caddr_t data, + int flags, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + + if (!dev->agp->acquired) return EINVAL; + agp_release(dev->agp->agpdev); + dev->agp->acquired = 0; + return 0; + +} + +int +drm_agp_enable(dev_t kdev, u_long cmd, caddr_t data, + int flags, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + drm_agp_mode_t mode; + + if (!dev->agp->acquired) return EINVAL; + + mode = *(drm_agp_mode_t *) data; + + dev->agp->mode = mode.mode; + agp_enable(dev->agp->agpdev, mode.mode); + dev->agp->base = dev->agp->info.ai_aperture_base; + dev->agp->enabled = 1; + return 0; +} + +int drm_agp_alloc(dev_t kdev, u_long cmd, caddr_t data, + int flags, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + drm_agp_buffer_t request; + drm_agp_mem_t *entry; + void *handle; + unsigned long pages; + u_int32_t type; + struct agp_memory_info info; + + if (!dev->agp->acquired) return EINVAL; + + request = *(drm_agp_buffer_t *) data; + + if (!(entry = drm_alloc(sizeof(*entry), DRM_MEM_AGPLISTS))) + return ENOMEM; + + memset(entry, 0, sizeof(*entry)); + + pages = (request.size + PAGE_SIZE - 1) / PAGE_SIZE; + type = (u_int32_t) request.type; + + if (!(handle = drm_alloc_agp(pages, type))) { + drm_free(entry, sizeof(*entry), DRM_MEM_AGPLISTS); + return ENOMEM; + } + + entry->handle = handle; + entry->bound = 0; + entry->pages = pages; + entry->prev = NULL; + entry->next = dev->agp->memory; + if (dev->agp->memory) dev->agp->memory->prev = entry; + dev->agp->memory = entry; + + agp_memory_info(dev->agp->agpdev, entry->handle, &info); + + request.handle = (unsigned long) entry->handle; + request.physical = info.ami_physical; + + *(drm_agp_buffer_t *) data = request; + + return 0; +} + +static drm_agp_mem_t * +drm_agp_lookup_entry(drm_device_t *dev, void *handle) +{ + drm_agp_mem_t *entry; + + for (entry = dev->agp->memory; entry; entry = entry->next) { + if (entry->handle == handle) return entry; + } + return NULL; +} + +int +drm_agp_unbind(dev_t kdev, u_long cmd, caddr_t data, + int flags, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + drm_agp_binding_t request; + drm_agp_mem_t *entry; + + if (!dev->agp->acquired) return EINVAL; + request = *(drm_agp_binding_t *) data; + if (!(entry = drm_agp_lookup_entry(dev, (void *) request.handle))) + return EINVAL; + if (!entry->bound) return EINVAL; + return drm_unbind_agp(entry->handle); +} + +int drm_agp_bind(dev_t kdev, u_long cmd, caddr_t data, + int flags, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + drm_agp_binding_t request; + drm_agp_mem_t *entry; + int retcode; + int page; + + if (!dev->agp->acquired) return EINVAL; + request = *(drm_agp_binding_t *) data; + if (!(entry = drm_agp_lookup_entry(dev, (void *) request.handle))) + return EINVAL; + if (entry->bound) return EINVAL; + page = (request.offset + PAGE_SIZE - 1) / PAGE_SIZE; + if ((retcode = drm_bind_agp(entry->handle, page))) return retcode; + entry->bound = dev->agp->base + (page << PAGE_SHIFT); + return 0; +} + +int drm_agp_free(dev_t kdev, u_long cmd, caddr_t data, + int flags, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + drm_agp_buffer_t request; + drm_agp_mem_t *entry; + + if (!dev->agp->acquired) return EINVAL; + request = *(drm_agp_buffer_t *) data; + if (!(entry = drm_agp_lookup_entry(dev, (void*) request.handle))) + return EINVAL; + if (entry->bound) drm_unbind_agp(entry->handle); + + if (entry->prev) entry->prev->next = entry->next; + else dev->agp->memory = entry->next; + if (entry->next) entry->next->prev = entry->prev; + drm_free_agp(entry->handle, entry->pages); + drm_free(entry, sizeof(*entry), DRM_MEM_AGPLISTS); + return 0; +} + +drm_agp_head_t *drm_agp_init(void) +{ + device_t agpdev; + drm_agp_head_t *head = NULL; + int agp_available = 1; + + agpdev = agp_find_device(); + if (!agpdev) + agp_available = 0; + + DRM_DEBUG("agp_available = %d\n", agp_available); + + if (agp_available) { + if (!(head = drm_alloc(sizeof(*head), DRM_MEM_AGPLISTS))) + return NULL; + head->agpdev = agpdev; + memset((void *)head, 0, sizeof(*head)); + agp_get_info(agpdev, &head->info); + head->memory = NULL; +#if 0 /* bogus */ + switch (head->agp_info.chipset) { + case INTEL_GENERIC: head->chipset = "Intel"; break; + case INTEL_LX: head->chipset = "Intel 440LX"; break; + case INTEL_BX: head->chipset = "Intel 440BX"; break; + case INTEL_GX: head->chipset = "Intel 440GX"; break; + case INTEL_I810: head->chipset = "Intel i810"; break; + case VIA_GENERIC: head->chipset = "VIA"; break; + case VIA_VP3: head->chipset = "VIA VP3"; break; + case VIA_MVP3: head->chipset = "VIA MVP3"; break; + case VIA_APOLLO_PRO: head->chipset = "VIA Apollo Pro"; break; + case SIS_GENERIC: head->chipset = "SiS"; break; + case AMD_GENERIC: head->chipset = "AMD"; break; + case AMD_IRONGATE: head->chipset = "AMD Irongate"; break; + case ALI_GENERIC: head->chipset = "ALi"; break; + case ALI_M1541: head->chipset = "ALi M1541"; break; + default: + } +#endif + DRM_INFO("AGP at 0x%08x %dMB\n", + head->info.ai_aperture_base, + head->info.ai_aperture_size >> 20); + } + return head; +} + +#endif /* DRM_AGP */ diff --git a/bsd/drm/auth.c b/bsd/drm/auth.c new file mode 100644 index 00000000..f7b3bc49 --- /dev/null +++ b/bsd/drm/auth.c @@ -0,0 +1,168 @@ +/* auth.c -- IOCTLs for authentication -*- c -*- + * Created: Tue Feb 2 08:37:54 1999 by faith@precisioninsight.com + * Revised: Fri Aug 20 11:31:48 1999 by faith@precisioninsight.com + * + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * $PI: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/auth.c,v 1.4 1999/08/30 13:05:00 faith Exp $ + * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/auth.c,v 1.1 1999/09/25 14:37:57 dawes Exp $ + * + */ + +#define __NO_VERSION__ +#include "drmP.h" + +static int drm_hash_magic(drm_magic_t magic) +{ + return magic & (DRM_HASH_SIZE-1); +} + +static drm_file_t *drm_find_file(drm_device_t *dev, drm_magic_t magic) +{ + drm_file_t *retval = NULL; + drm_magic_entry_t *pt; + int hash = drm_hash_magic(magic); + + lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc); + for (pt = dev->magiclist[hash].head; pt; pt = pt->next) { + if (pt->priv->authenticated) continue; + if (pt->magic == magic) { + retval = pt->priv; + break; + } + } + lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc); + + return retval; +} + +int drm_add_magic(drm_device_t *dev, drm_file_t *priv, drm_magic_t magic) +{ + int hash; + drm_magic_entry_t *entry; + + DRM_DEBUG("%d\n", magic); + + hash = drm_hash_magic(magic); + entry = drm_alloc(sizeof(*entry), DRM_MEM_MAGIC); + if (!entry) return ENOMEM; + entry->magic = magic; + entry->priv = priv; + entry->next = NULL; + + lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc); + if (dev->magiclist[hash].tail) { + dev->magiclist[hash].tail->next = entry; + dev->magiclist[hash].tail = entry; + } else { + dev->magiclist[hash].head = entry; + dev->magiclist[hash].tail = entry; + } + lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc); + + return 0; +} + +int drm_remove_magic(drm_device_t *dev, drm_magic_t magic) +{ + drm_magic_entry_t *prev = NULL; + drm_magic_entry_t *pt; + int hash; + + DRM_DEBUG("%d\n", magic); + hash = drm_hash_magic(magic); + + lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc); + for (pt = dev->magiclist[hash].head; pt; prev = pt, pt = pt->next) { + if (pt->magic == magic) { + if (dev->magiclist[hash].head == pt) { + dev->magiclist[hash].head = pt->next; + } + if (dev->magiclist[hash].tail == pt) { + dev->magiclist[hash].tail = prev; + } + if (prev) { + prev->next = pt->next; + } + lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc); + return 0; + } + } + lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc); + + drm_free(pt, sizeof(*pt), DRM_MEM_MAGIC); + + return EINVAL; +} + +int drm_getmagic(dev_t kdev, u_long cmd, caddr_t data, + int flags, struct proc *p) +{ + static drm_magic_t sequence = 0; +#if 0 + static struct simplelock lock; /* XXX */ +#endif + drm_device_t *dev = kdev->si_drv1; + drm_file_t *priv; + drm_auth_t auth; + + /* Find unique magic */ + priv = drm_find_file_by_proc(dev, p); + if (!priv) { + DRM_DEBUG("can't find file structure\n"); + return EINVAL; + } + if (priv->magic) { + auth.magic = priv->magic; + } else { + simple_lock(&lock); + do { + if (!sequence) ++sequence; /* reserve 0 */ + auth.magic = sequence++; + } while (drm_find_file(dev, auth.magic)); + simple_unlock(&lock); + priv->magic = auth.magic; + drm_add_magic(dev, priv, auth.magic); + } + + DRM_DEBUG("%u\n", auth.magic); + *(drm_auth_t *) data = auth; + return 0; +} + +int drm_authmagic(dev_t kdev, u_long cmd, caddr_t data, + int flags, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + drm_auth_t auth; + drm_file_t *file; + + auth = *(drm_auth_t *) data; + DRM_DEBUG("%u\n", auth.magic); + if ((file = drm_find_file(dev, auth.magic))) { + file->authenticated = 1; + drm_remove_magic(dev, auth.magic); + return 0; + } + return EINVAL; +} diff --git a/bsd/drm/bufs.c b/bsd/drm/bufs.c new file mode 100644 index 00000000..fc08b69d --- /dev/null +++ b/bsd/drm/bufs.c @@ -0,0 +1,500 @@ +/* bufs.c -- IOCTLs to manage buffers -*- c -*- + * Created: Tue Feb 2 08:37:54 1999 by faith@precisioninsight.com + * Revised: Fri Aug 20 22:48:10 1999 by faith@precisioninsight.com + * + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * $PI: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/bufs.c,v 1.8 1999/08/30 13:05:00 faith Exp $ + * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/bufs.c,v 1.1 1999/09/25 14:37:57 dawes Exp $ + * + */ + +#define __NO_VERSION__ +#include "drmP.h" +#include <sys/mman.h> +#include <vm/vm.h> +#include <vm/pmap.h> +#include <vm/vm_extern.h> +#include <vm/vm_map.h> + + /* Compute order. Can be made faster. */ +int drm_order(unsigned long size) +{ + int order; + unsigned long tmp; + + for (order = 0, tmp = size; tmp >>= 1; ++order); + if (size & ~(1 << order)) ++order; + return order; +} + +int drm_addmap(dev_t kdev, u_long cmd, caddr_t data, + int flags, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + drm_map_t *map; + + if (!(dev->flags & (FREAD|FWRITE))) + return EACCES; /* Require read/write */ + + map = drm_alloc(sizeof(*map), DRM_MEM_MAPS); + if (!map) return ENOMEM; + *map = *(drm_map_t *) data; + + DRM_DEBUG("offset = 0x%08lx, size = 0x%08lx, type = %d\n", + map->offset, map->size, map->type); + if ((map->offset & (PAGE_SIZE-1)) || (map->size & (PAGE_SIZE-1))) { + drm_free(map, sizeof(*map), DRM_MEM_MAPS); + DRM_DEBUG("offset or size not page aligned\n"); + return EINVAL; + } + map->mtrr = -1; + map->handle = 0; + + switch (map->type) { + case _DRM_REGISTERS: + case _DRM_FRAME_BUFFER: + if (map->offset + map->size < map->offset + /* || map->offset < virt_to_phys(high_memory) */) { + drm_free(map, sizeof(*map), DRM_MEM_MAPS); + DRM_DEBUG("bad frame buffer size\n"); + return EINVAL; + } +#ifdef CONFIG_MTRR + if (map->type == _DRM_FRAME_BUFFER + || (map->flags & _DRM_WRITE_COMBINING)) { + map->mtrr = mtrr_add(map->offset, map->size, + MTRR_TYPE_WRCOMB, 1); + } +#endif + map->handle = drm_ioremap(map->offset, map->size); + break; + + + case _DRM_SHM: + DRM_DEBUG("%ld %d\n", map->size, drm_order(map->size)); + map->handle = (void *)drm_alloc_pages(drm_order(map->size) + - PAGE_SHIFT, + DRM_MEM_SAREA); + if (!map->handle) { + drm_free(map, sizeof(*map), DRM_MEM_MAPS); + return ENOMEM; + } + map->offset = (unsigned long)map->handle; + if (map->flags & _DRM_CONTAINS_LOCK) { + dev->lock.hw_lock = map->handle; /* Pointer to lock */ + } + break; +#ifdef DRM_AGP + case _DRM_AGP: + map->offset = map->offset + dev->agp->base; + break; +#endif + default: + drm_free(map, sizeof(*map), DRM_MEM_MAPS); + DRM_DEBUG("bad type\n"); + return EINVAL; + } + + lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc); + if (dev->maplist) { + ++dev->map_count; + dev->maplist = drm_realloc(dev->maplist, + (dev->map_count-1) + * sizeof(*dev->maplist), + dev->map_count + * sizeof(*dev->maplist), + DRM_MEM_MAPS); + } else { + dev->map_count = 1; + dev->maplist = drm_alloc(dev->map_count*sizeof(*dev->maplist), + DRM_MEM_MAPS); + } + dev->maplist[dev->map_count-1] = map; + lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc); + + *(drm_map_t *) data = *map; + if (map->type != _DRM_SHM) + ((drm_map_t *)data)->handle = (void *) map->offset; + + return 0; +} + +int drm_addbufs(dev_t kdev, u_long cmd, caddr_t data, + int flags, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + drm_device_dma_t *dma = dev->dma; + drm_buf_desc_t request; + int count; + int order; + int size; + int total; + int page_order; + drm_buf_entry_t *entry; + unsigned long page; + drm_buf_t *buf; + int alignment; + unsigned long offset; + int i; + int byte_count; + int page_count; + + if (!dma) return EINVAL; + + request = *(drm_buf_desc_t *) data; + + count = request.count; + order = drm_order(request.size); + size = 1 << order; + + DRM_DEBUG("count = %d, size = %d (%d), order = %d, queue_count = %d\n", + request.count, request.size, size, order, dev->queue_count); + + if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER) return EINVAL; + if (dev->queue_count) return EBUSY; /* Not while in use */ + + alignment = (request.flags & _DRM_PAGE_ALIGN) ? round_page(size) :size; + page_order = order - PAGE_SHIFT > 0 ? order - PAGE_SHIFT : 0; + total = PAGE_SIZE << page_order; + + simple_lock(&dev->count_lock); + if (dev->buf_use) { + simple_unlock(&dev->count_lock); + return EBUSY; + } + atomic_inc(&dev->buf_alloc); + simple_unlock(&dev->count_lock); + + lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc); + entry = &dma->bufs[order]; + if (entry->buf_count) { + lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc); + atomic_dec(&dev->buf_alloc); + return ENOMEM; /* May only call once for each order */ + } + + entry->buflist = drm_alloc(count * sizeof(*entry->buflist), + DRM_MEM_BUFS); + if (!entry->buflist) { + lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc); + atomic_dec(&dev->buf_alloc); + return ENOMEM; + } + memset(entry->buflist, 0, count * sizeof(*entry->buflist)); + + entry->seglist = drm_alloc(count * sizeof(*entry->seglist), + DRM_MEM_SEGS); + if (!entry->seglist) { + drm_free(entry->buflist, + count * sizeof(*entry->buflist), + DRM_MEM_BUFS); + lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc); + atomic_dec(&dev->buf_alloc); + return ENOMEM; + } + memset(entry->seglist, 0, count * sizeof(*entry->seglist)); + + dma->pagelist = drm_realloc(dma->pagelist, + dma->page_count * sizeof(*dma->pagelist), + (dma->page_count + (count << page_order)) + * sizeof(*dma->pagelist), + DRM_MEM_PAGES); + DRM_DEBUG("pagelist: %d entries\n", + dma->page_count + (count << page_order)); + + + entry->buf_size = size; + entry->page_order = page_order; + byte_count = 0; + page_count = 0; + while (entry->buf_count < count) { + if (!(page = drm_alloc_pages(page_order, DRM_MEM_DMA))) break; + entry->seglist[entry->seg_count++] = page; + for (i = 0; i < (1 << page_order); i++) { + DRM_DEBUG("page %d @ 0x%08lx\n", + dma->page_count + page_count, + page + PAGE_SIZE * i); + dma->pagelist[dma->page_count + page_count++] + = page + PAGE_SIZE * i; + } + for (offset = 0; + offset + size <= total && entry->buf_count < count; + offset += alignment, ++entry->buf_count) { + buf = &entry->buflist[entry->buf_count]; + buf->idx = dma->buf_count + entry->buf_count; + buf->total = alignment; + buf->order = order; + buf->used = 0; + buf->offset = (dma->byte_count + byte_count + offset); + buf->address = (void *)(page + offset); + buf->next = NULL; + buf->waiting = 0; + buf->pending = 0; + buf->dma_wait = 0; + buf->pid = 0; +#if DRM_DMA_HISTOGRAM + timespecclear(&buf->time_queued); + timespecclear(&buf->time_dispatched); + timespecclear(&buf->time_completed); + timespecclear(&buf->time_freed); +#endif + DRM_DEBUG("buffer %d @ %p\n", + entry->buf_count, buf->address); + } + byte_count += PAGE_SIZE << page_order; + } + + dma->buflist = drm_realloc(dma->buflist, + dma->buf_count * sizeof(*dma->buflist), + (dma->buf_count + entry->buf_count) + * sizeof(*dma->buflist), + DRM_MEM_BUFS); + for (i = dma->buf_count; i < dma->buf_count + entry->buf_count; i++) + dma->buflist[i] = &entry->buflist[i - dma->buf_count]; + + dma->buf_count += entry->buf_count; + dma->seg_count += entry->seg_count; + dma->page_count += entry->seg_count << page_order; + dma->byte_count += PAGE_SIZE * (entry->seg_count << page_order); + + drm_freelist_create(&entry->freelist, entry->buf_count); + for (i = 0; i < entry->buf_count; i++) { + drm_freelist_put(dev, &entry->freelist, &entry->buflist[i]); + } + + lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc); + + request.count = entry->buf_count; + request.size = size; + + *(drm_buf_desc_t *) data = request; + + atomic_dec(&dev->buf_alloc); + return 0; +} + +int drm_infobufs(dev_t kdev, u_long cmd, caddr_t data, + int flags, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + drm_device_dma_t *dma = dev->dma; + drm_buf_info_t request; + int i; + int count; + + if (!dma) return EINVAL; + + simple_lock(&dev->count_lock); + if (atomic_read(&dev->buf_alloc)) { + simple_unlock(&dev->count_lock); + return EBUSY; + } + ++dev->buf_use; /* Can't allocate more after this call */ + simple_unlock(&dev->count_lock); + + request = *(drm_buf_info_t *) data; + + for (i = 0, count = 0; i < DRM_MAX_ORDER+1; i++) { + if (dma->bufs[i].buf_count) ++count; + } + + DRM_DEBUG("count = %d\n", count); + + if (request.count >= count) { + for (i = 0, count = 0; i < DRM_MAX_ORDER+1; i++) { + if (dma->bufs[i].buf_count) { + int error; + error = copyout(&dma->bufs[i].buf_count, + &request.list[count].count, + sizeof(dma->bufs[0] + .buf_count)); + if (error) return error; + error = copyout(&dma->bufs[i].buf_size, + &request.list[count].size, + sizeof(dma->bufs[0].buf_size)); + if (error) return error; + error = copyout(&dma->bufs[i] + .freelist.low_mark, + &request.list[count].low_mark, + sizeof(dma->bufs[0] + .freelist.low_mark)); + if (error) return error; + error = copyout(&dma->bufs[i] + .freelist.high_mark, + &request.list[count].high_mark, + sizeof(dma->bufs[0] + .freelist.high_mark)); + if (error) return error; + DRM_DEBUG("%d %d %d %d %d\n", + i, + dma->bufs[i].buf_count, + dma->bufs[i].buf_size, + dma->bufs[i].freelist.low_mark, + dma->bufs[i].freelist.high_mark); + ++count; + } + } + } + request.count = count; + + *(drm_buf_info_t *) data = request; + + return 0; +} + +int drm_markbufs(dev_t kdev, u_long cmd, caddr_t data, + int flags, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + drm_device_dma_t *dma = dev->dma; + drm_buf_desc_t request; + int order; + drm_buf_entry_t *entry; + + if (!dma) return EINVAL; + + request = *(drm_buf_desc_t *) data; + + DRM_DEBUG("%d, %d, %d\n", + request.size, request.low_mark, request.high_mark); + order = drm_order(request.size); + if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER) return EINVAL; + entry = &dma->bufs[order]; + + if (request.low_mark < 0 || request.low_mark > entry->buf_count) + return EINVAL; + if (request.high_mark < 0 || request.high_mark > entry->buf_count) + return EINVAL; + + entry->freelist.low_mark = request.low_mark; + entry->freelist.high_mark = request.high_mark; + + return 0; +} + +int drm_freebufs(dev_t kdev, u_long cmd, caddr_t data, + int flags, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + drm_device_dma_t *dma = dev->dma; + drm_buf_free_t request; + int i; + int idx; + int error; + drm_buf_t *buf; + + if (!dma) return EINVAL; + + request = *(drm_buf_free_t *) data; + + DRM_DEBUG("%d\n", request.count); + for (i = 0; i < request.count; i++) { + error = copyin(&request.list[i], &idx, sizeof(idx)); + if (error) + return error; + if (idx < 0 || idx >= dma->buf_count) { + DRM_ERROR("Index %d (of %d max)\n", + idx, dma->buf_count - 1); + return EINVAL; + } + buf = dma->buflist[idx]; + if (buf->pid != p->p_pid) { + DRM_ERROR("Process %d freeing buffer owned by %d\n", + p->p_pid, buf->pid); + return EINVAL; + } + drm_free_buffer(dev, buf); + } + + return 0; +} + +int drm_mapbufs(dev_t kdev, u_long cmd, caddr_t data, + int flags, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + drm_device_dma_t *dma = dev->dma; + int retcode = 0; + const int zero = 0; + vm_offset_t virtual; + vm_offset_t address; + drm_buf_map_t request; + int i; + + if (!dma) return EINVAL; + + DRM_DEBUG("\n"); + + simple_lock(&dev->count_lock); + if (atomic_read(&dev->buf_alloc)) { + simple_unlock(&dev->count_lock); + return EBUSY; + } + ++dev->buf_use; /* Can't allocate more after this call */ + simple_unlock(&dev->count_lock); + + request = *(drm_buf_map_t *) data; + + if (request.count >= dma->buf_count) { + virtual = 0; + retcode = vm_mmap(&p->p_vmspace->vm_map, + &virtual, + round_page(dma->byte_count), + PROT_READ|PROT_WRITE, VM_PROT_ALL, + MAP_SHARED, + SLIST_FIRST(&kdev->si_hlist), + 0); + if (retcode) + goto done; + + request.virtual = (void *)virtual; + + for (i = 0; i < dma->buf_count; i++) { + retcode = copyout(&dma->buflist[i]->idx, + &request.list[i].idx, + sizeof(request.list[0].idx)); + if (retcode) goto done; + retcode = copyout(&dma->buflist[i]->total, + &request.list[i].total, + sizeof(request.list[0].total)); + if (retcode) goto done; + retcode = copyout(&zero, + &request.list[i].used, + sizeof(request.list[0].used)); + if (retcode) goto done; + address = virtual + dma->buflist[i]->offset; + retcode = copyout(&address, + &request.list[i].address, + sizeof(address)); + if (retcode) goto done; + } + } +done: + request.count = dma->buf_count; + DRM_DEBUG("%d buffers, retcode = %d\n", request.count, retcode); + + *(drm_buf_map_t *) data = request; + + return retcode; +} diff --git a/bsd/drm/context.c b/bsd/drm/context.c new file mode 100644 index 00000000..d79990f8 --- /dev/null +++ b/bsd/drm/context.c @@ -0,0 +1,297 @@ +/* context.c -- IOCTLs for contexts and DMA queues -*- c -*- + * Created: Tue Feb 2 08:37:54 1999 by faith@precisioninsight.com + * Revised: Fri Aug 20 11:32:09 1999 by faith@precisioninsight.com + * + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * $PI: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/context.c,v 1.5 1999/08/30 13:05:00 faith Exp $ + * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/context.c,v 1.1 1999/09/25 14:37:58 dawes Exp $ + * + */ + +#define __NO_VERSION__ +#include "drmP.h" + +static int drm_init_queue(drm_device_t *dev, drm_queue_t *q, drm_ctx_t *ctx) +{ + DRM_DEBUG("\n"); + + if (atomic_read(&q->use_count) != 1 + || atomic_read(&q->finalization) + || atomic_read(&q->block_count)) { + DRM_ERROR("New queue is already in use: u%d f%d b%d\n", + atomic_read(&q->use_count), + atomic_read(&q->finalization), + atomic_read(&q->block_count)); + } + + atomic_set(&q->finalization, 0); + atomic_set(&q->block_count, 0); + atomic_set(&q->block_read, 0); + atomic_set(&q->block_write, 0); + atomic_set(&q->total_queued, 0); + atomic_set(&q->total_flushed, 0); + atomic_set(&q->total_locks, 0); + + q->write_queue = 0; + q->read_queue = 0; + q->flush_queue = 0; + + q->flags = ctx->flags; + + drm_waitlist_create(&q->waitlist, dev->dma->buf_count); + + return 0; +} + + +/* drm_alloc_queue: +PRE: 1) dev->queuelist[0..dev->queue_count] is allocated and will not + disappear (so all deallocation must be done after IOCTLs are off) + 2) dev->queue_count < dev->queue_slots + 3) dev->queuelist[i].use_count == 0 and + dev->queuelist[i].finalization == 0 if i not in use +POST: 1) dev->queuelist[i].use_count == 1 + 2) dev->queue_count < dev->queue_slots */ + +static int drm_alloc_queue(drm_device_t *dev) +{ + int i; + drm_queue_t *queue; + int oldslots; + int newslots; + /* Check for a free queue */ + for (i = 0; i < dev->queue_count; i++) { + atomic_inc(&dev->queuelist[i]->use_count); + if (atomic_read(&dev->queuelist[i]->use_count) == 1 + && !atomic_read(&dev->queuelist[i]->finalization)) { + DRM_DEBUG("%d (free)\n", i); + return i; + } + atomic_dec(&dev->queuelist[i]->use_count); + } + /* Allocate a new queue */ + lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc); + + queue = drm_alloc(sizeof(*queue), DRM_MEM_QUEUES); + memset(queue, 0, sizeof(*queue)); + atomic_set(&queue->use_count, 1); + + ++dev->queue_count; + if (dev->queue_count >= dev->queue_slots) { + oldslots = dev->queue_slots * sizeof(*dev->queuelist); + if (!dev->queue_slots) dev->queue_slots = 1; + dev->queue_slots *= 2; + newslots = dev->queue_slots * sizeof(*dev->queuelist); + + dev->queuelist = drm_realloc(dev->queuelist, + oldslots, + newslots, + DRM_MEM_QUEUES); + if (!dev->queuelist) { + lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc); + DRM_DEBUG("out of memory\n"); + return -ENOMEM; + } + } + dev->queuelist[dev->queue_count-1] = queue; + + lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc); + DRM_DEBUG("%d (new)\n", dev->queue_count - 1); + return dev->queue_count - 1; +} + +int drm_resctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p) +{ + drm_ctx_res_t res; + drm_ctx_t ctx; + int i; + int error; + + DRM_DEBUG("%d\n", DRM_RESERVED_CONTEXTS); + res = *(drm_ctx_res_t *) data; + if (res.count >= DRM_RESERVED_CONTEXTS) { + memset(&ctx, 0, sizeof(ctx)); + for (i = 0; i < DRM_RESERVED_CONTEXTS; i++) { + ctx.handle = i; + error = copyout(&i, &res.contexts[i], + sizeof(i)); + if (error) return error; + } + } + res.count = DRM_RESERVED_CONTEXTS; + *(drm_ctx_res_t *) data = res; + return 0; +} + + +int drm_addctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + drm_ctx_t ctx; + + ctx = *(drm_ctx_t *) data; + if ((ctx.handle = drm_alloc_queue(dev)) == DRM_KERNEL_CONTEXT) { + /* Init kernel's context and get a new one. */ + drm_init_queue(dev, dev->queuelist[ctx.handle], &ctx); + ctx.handle = drm_alloc_queue(dev); + } + drm_init_queue(dev, dev->queuelist[ctx.handle], &ctx); + DRM_DEBUG("%d\n", ctx.handle); + *(drm_ctx_t *) data = ctx; + return 0; +} + +int drm_modctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + drm_ctx_t ctx; + drm_queue_t *q; + + ctx = *(drm_ctx_t *) data; + + DRM_DEBUG("%d\n", ctx.handle); + + if (ctx.handle < 0 || ctx.handle >= dev->queue_count) return -EINVAL; + q = dev->queuelist[ctx.handle]; + + atomic_inc(&q->use_count); + if (atomic_read(&q->use_count) == 1) { + /* No longer in use */ + atomic_dec(&q->use_count); + return -EINVAL; + } + + if (DRM_BUFCOUNT(&q->waitlist)) { + atomic_dec(&q->use_count); + return -EBUSY; + } + + q->flags = ctx.flags; + + atomic_dec(&q->use_count); + return 0; +} + +int drm_getctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + drm_ctx_t ctx; + drm_queue_t *q; + + ctx = *(drm_ctx_t *) data; + + DRM_DEBUG("%d\n", ctx.handle); + + if (ctx.handle >= dev->queue_count) return -EINVAL; + q = dev->queuelist[ctx.handle]; + + atomic_inc(&q->use_count); + if (atomic_read(&q->use_count) == 1) { + /* No longer in use */ + atomic_dec(&q->use_count); + return -EINVAL; + } + + ctx.flags = q->flags; + atomic_dec(&q->use_count); + + *(drm_ctx_t *) data = ctx; + + return 0; +} + +int drm_switchctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + drm_ctx_t ctx; + + ctx = *(drm_ctx_t *) data; + DRM_DEBUG("%d\n", ctx.handle); + return drm_context_switch(dev, dev->last_context, ctx.handle); +} + +int drm_newctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + drm_ctx_t ctx; + + ctx = *(drm_ctx_t *) data; + DRM_DEBUG("%d\n", ctx.handle); + drm_context_switch_complete(dev, ctx.handle); + + return 0; +} + +int drm_rmctx(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + drm_ctx_t ctx; + drm_queue_t *q; + drm_buf_t *buf; + + ctx = *(drm_ctx_t *) data; + DRM_DEBUG("%d\n", ctx.handle); + + if (ctx.handle >= dev->queue_count) return -EINVAL; + q = dev->queuelist[ctx.handle]; + + atomic_inc(&q->use_count); + if (atomic_read(&q->use_count) == 1) { + /* No longer in use */ + atomic_dec(&q->use_count); + return -EINVAL; + } + + atomic_inc(&q->finalization); /* Mark queue in finalization state */ + atomic_sub(2, &q->use_count); /* Mark queue as unused (pending + finalization) */ + + /* Wait while interrupt servicing is in progress */ + while (test_and_set_bit(0, &dev->interrupt_flag)) { + int never; + int error = tsleep(&never, PZERO|PCATCH, "drmrc", 1); + if (error) { + clear_bit(0, &dev->interrupt_flag); + return error; + } + } + /* Remove queued buffers */ + while ((buf = drm_waitlist_get(&q->waitlist))) { + drm_free_buffer(dev, buf); + } + clear_bit(0, &dev->interrupt_flag); + + /* Wakeup blocked processes */ + wakeup(&q->read_queue); + wakeup(&q->write_queue); + wakeup(&q->flush_queue); + + /* Finalization over. Queue is made + available when both use_count and + finalization become 0, which won't + happen until all the waiting processes + stop waiting. */ + atomic_dec(&q->finalization); + return 0; +} diff --git a/bsd/drm/dma.c b/bsd/drm/dma.c new file mode 100644 index 00000000..149f4593 --- /dev/null +++ b/bsd/drm/dma.c @@ -0,0 +1,534 @@ +/* dma.c -- DMA IOCTL and function support -*- c -*- + * Created: Fri Mar 19 14:30:16 1999 by faith@precisioninsight.com + * Revised: Thu Sep 16 12:55:39 1999 by faith@precisioninsight.com + * + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * $PI: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/dma.c,v 1.7 1999/09/16 16:56:18 faith Exp $ + * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/dma.c,v 1.1 1999/09/25 14:37:58 dawes Exp $ + * + */ + +#define __NO_VERSION__ +#include "drmP.h" + +void drm_dma_setup(drm_device_t *dev) +{ + int i; + + dev->dma = drm_alloc(sizeof(*dev->dma), DRM_MEM_DRIVER); + memset(dev->dma, 0, sizeof(*dev->dma)); + for (i = 0; i <= DRM_MAX_ORDER; i++) + memset(&dev->dma->bufs[i], 0, sizeof(dev->dma->bufs[0])); +} + +void drm_dma_takedown(drm_device_t *dev) +{ + drm_device_dma_t *dma = dev->dma; + int i, j; + + if (!dma) return; + + /* Clear dma buffers */ + for (i = 0; i <= DRM_MAX_ORDER; i++) { + if (dma->bufs[i].seg_count) { + DRM_DEBUG("order %d: buf_count = %d," + " seg_count = %d\n", + i, + dma->bufs[i].buf_count, + dma->bufs[i].seg_count); + for (j = 0; j < dma->bufs[i].seg_count; j++) { + drm_free_pages(dma->bufs[i].seglist[j], + dma->bufs[i].page_order, + DRM_MEM_DMA); + } + drm_free(dma->bufs[i].buflist, + dma->buf_count + * sizeof(*dma->bufs[0].buflist), + DRM_MEM_BUFS); + drm_free(dma->bufs[i].seglist, + dma->buf_count + * sizeof(*dma->bufs[0].seglist), + DRM_MEM_SEGS); + drm_freelist_destroy(&dma->bufs[i].freelist); + } + } + + if (dma->buflist) { + drm_free(dma->buflist, + dma->buf_count * sizeof(*dma->buflist), + DRM_MEM_BUFS); + } + + if (dma->pagelist) { + drm_free(dma->pagelist, + dma->page_count * sizeof(*dma->pagelist), + DRM_MEM_PAGES); + } + drm_free(dev->dma, sizeof(*dev->dma), DRM_MEM_DRIVER); + dev->dma = NULL; +} + +#if DRM_DMA_HISTOGRAM +/* This is slow, but is useful for debugging. */ +int drm_histogram_slot(struct timespec *ts) +{ + long count = ts->tv_sec * 1000 + ts->tv_nsec / 1000000; + int value = DRM_DMA_HISTOGRAM_INITIAL; + int slot; + + for (slot = 0; + slot < DRM_DMA_HISTOGRAM_SLOTS; + ++slot, value = DRM_DMA_HISTOGRAM_NEXT(value)) { + if (count < value) return slot; + } + return DRM_DMA_HISTOGRAM_SLOTS - 1; +} + +void drm_histogram_compute(drm_device_t *dev, drm_buf_t *buf) +{ + struct timespec queued_to_dispatched; + struct timespec dispatched_to_completed; + struct timespec completed_to_freed; + int q2d, d2c, c2f, q2c, q2f; + + if (timespecisset(&buf->time_queued)) { + queued_to_dispatched = buf->time_dispatched; + timespecsub(&queued_to_dispatched, &buf->time_queued); + dispatched_to_completed = buf->time_completed; + timespecsub(&dispatched_to_completed, &buf->time_dispatched); + completed_to_freed = buf->time_freed; + timespecsub(&completed_to_freed, &buf->time_completed); + + q2d = drm_histogram_slot(&queued_to_dispatched); + d2c = drm_histogram_slot(&dispatched_to_completed); + c2f = drm_histogram_slot(&completed_to_freed); + + timespecadd(&queued_to_dispatched, &dispatched_to_completed); + q2c = drm_histogram_slot(&queued_to_dispatched); + timespecadd(&queued_to_dispatched, &completed_to_freed); + q2f = drm_histogram_slot(&queued_to_dispatched); + + atomic_inc(&dev->histo.total); + atomic_inc(&dev->histo.queued_to_dispatched[q2d]); + atomic_inc(&dev->histo.dispatched_to_completed[d2c]); + atomic_inc(&dev->histo.completed_to_freed[c2f]); + + atomic_inc(&dev->histo.queued_to_completed[q2c]); + atomic_inc(&dev->histo.queued_to_freed[q2f]); + + } + timespecclear(&buf->time_queued); + timespecclear(&buf->time_dispatched); + timespecclear(&buf->time_completed); + timespecclear(&buf->time_freed); +} +#endif + +void drm_free_buffer(drm_device_t *dev, drm_buf_t *buf) +{ + drm_device_dma_t *dma = dev->dma; + + if (!buf) return; + + buf->waiting = 0; + buf->pending = 0; + buf->pid = 0; + buf->used = 0; +#if DRM_DMA_HISTOGRAMxx + buf->time_completed = get_cycles(); +#endif + if (buf->dma_wait) { + buf->dma_wait = 0; + wakeup(&buf->dma_wait); + } else { + /* If processes are waiting, the last one + to wake will put the buffer on the free + list. If no processes are waiting, we + put the buffer on the freelist here. */ + drm_freelist_put(dev, &dma->bufs[buf->order].freelist, buf); + } +} + +void drm_reclaim_buffers(drm_device_t *dev, pid_t pid) +{ + drm_device_dma_t *dma = dev->dma; + int i; + + if (!dma) return; + for (i = 0; i < dma->buf_count; i++) { + if (dma->buflist[i]->pid == pid) { + switch (dma->buflist[i]->list) { + case DRM_LIST_NONE: + drm_free_buffer(dev, dma->buflist[i]); + break; + case DRM_LIST_WAIT: + dma->buflist[i]->list = DRM_LIST_RECLAIM; + break; + default: + /* Buffer already on hardware. */ + break; + } + } + } +} + +int drm_context_switch(drm_device_t *dev, int old, int new) +{ + char buf[64]; + drm_queue_t *q; + + atomic_inc(&dev->total_ctx); + + if (test_and_set_bit(0, &dev->context_flag)) { + DRM_ERROR("Reentering -- FIXME\n"); + return EBUSY; + } + +#if DRM_DMA_HISTOGRAM + getnanotime(&dev->ctx_start); +#endif + + DRM_DEBUG("Context switch from %d to %d\n", old, new); + + if (new >= dev->queue_count) { + clear_bit(0, &dev->context_flag); + return EINVAL; + } + + if (new == dev->last_context) { + clear_bit(0, &dev->context_flag); + return 0; + } + + q = dev->queuelist[new]; + atomic_inc(&q->use_count); + if (atomic_read(&q->use_count) == 1) { + atomic_dec(&q->use_count); + clear_bit(0, &dev->context_flag); + return EINVAL; + } + + if (drm_flags & DRM_FLAG_NOCTX) { + drm_context_switch_complete(dev, new); + } else { + sprintf(buf, "C %d %d\n", old, new); + drm_write_string(dev, buf); + } + + atomic_dec(&q->use_count); + + return 0; +} + +int drm_context_switch_complete(drm_device_t *dev, int new) +{ + drm_device_dma_t *dma = dev->dma; + + dev->last_context = new; /* PRE/POST: This is the _only_ writer. */ + dev->last_switch = ticks; + + if (!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) { + DRM_ERROR("Lock isn't held after context switch\n"); + } + + if (!dma || !(dma->next_buffer && dma->next_buffer->while_locked)) { + if (drm_lock_free(dev, &dev->lock.hw_lock->lock, + DRM_KERNEL_CONTEXT)) { + DRM_ERROR("Cannot free lock\n"); + } + } + +#if DRM_DMA_HISTOGRAM + { + struct timespec ts; + getnanotime(&ts); + timespecsub(&ts, &dev->ctx_start); + atomic_inc(&dev->histo.ctx[drm_histogram_slot(&ts)]); + } +#endif + clear_bit(0, &dev->context_flag); + wakeup(&dev->context_wait); + + return 0; +} + +void drm_clear_next_buffer(drm_device_t *dev) +{ + drm_device_dma_t *dma = dev->dma; + + dma->next_buffer = NULL; + if (dma->next_queue && !DRM_BUFCOUNT(&dma->next_queue->waitlist)) { + wakeup(&dma->next_queue->flush_queue); + } + dma->next_queue = NULL; +} + + +int drm_select_queue(drm_device_t *dev, void (*wrapper)(void *)) +{ + int i; + int candidate = -1; + int j = ticks; + + if (!dev) { + DRM_ERROR("No device\n"); + return -1; + } + if (!dev->queuelist || !dev->queuelist[DRM_KERNEL_CONTEXT]) { + /* This only happens between the time the + interrupt is initialized and the time + the queues are initialized. */ + return -1; + } + + /* Doing "while locked" DMA? */ + if (DRM_WAITCOUNT(dev, DRM_KERNEL_CONTEXT)) { + return DRM_KERNEL_CONTEXT; + } + + /* If there are buffers on the last_context + queue, and we have not been executing + this context very long, continue to + execute this context. */ + if (dev->last_switch <= j + && dev->last_switch + DRM_TIME_SLICE > j + && DRM_WAITCOUNT(dev, dev->last_context)) { + return dev->last_context; + } + + /* Otherwise, find a candidate */ + for (i = dev->last_checked + 1; i < dev->queue_count; i++) { + if (DRM_WAITCOUNT(dev, i)) { + candidate = dev->last_checked = i; + break; + } + } + + if (candidate < 0) { + for (i = 0; i < dev->queue_count; i++) { + if (DRM_WAITCOUNT(dev, i)) { + candidate = dev->last_checked = i; + break; + } + } + } + + if (wrapper + && candidate >= 0 + && candidate != dev->last_context + && dev->last_switch <= j + && dev->last_switch + DRM_TIME_SLICE > j) { + int s = splclock(); + if (dev->timer.c_time != dev->last_switch + DRM_TIME_SLICE) { + callout_reset(&dev->timer, + dev->last_switch + DRM_TIME_SLICE - j, + wrapper, + dev); + } + splx(s); + return -1; + } + + return candidate; +} + + +int drm_dma_enqueue(drm_device_t *dev, drm_dma_t *d) +{ + int i; + drm_queue_t *q; + drm_buf_t *buf; + int idx; + int while_locked = 0; + drm_device_dma_t *dma = dev->dma; + int error; + + DRM_DEBUG("%d\n", d->send_count); + + if (d->flags & _DRM_DMA_WHILE_LOCKED) { + int context = dev->lock.hw_lock->lock; + + if (!_DRM_LOCK_IS_HELD(context)) { + DRM_ERROR("No lock held during \"while locked\"" + " request\n"); + return EINVAL; + } + if (d->context != _DRM_LOCKING_CONTEXT(context) + && _DRM_LOCKING_CONTEXT(context) != DRM_KERNEL_CONTEXT) { + DRM_ERROR("Lock held by %d while %d makes" + " \"while locked\" request\n", + _DRM_LOCKING_CONTEXT(context), + d->context); + return EINVAL; + } + q = dev->queuelist[DRM_KERNEL_CONTEXT]; + while_locked = 1; + } else { + q = dev->queuelist[d->context]; + } + + + atomic_inc(&q->use_count); + if (atomic_read(&q->block_write)) { + atomic_inc(&q->block_count); + for (;;) { + if (!atomic_read(&q->block_write)) break; + error = tsleep(&q->block_write, PZERO|PCATCH, + "dmawr", 0); + if (error) { + atomic_dec(&q->use_count); + return error; + } + } + atomic_dec(&q->block_count); + } + + for (i = 0; i < d->send_count; i++) { + idx = d->send_indices[i]; + if (idx < 0 || idx >= dma->buf_count) { + atomic_dec(&q->use_count); + DRM_ERROR("Index %d (of %d max)\n", + d->send_indices[i], dma->buf_count - 1); + return EINVAL; + } + buf = dma->buflist[ idx ]; + if (buf->pid != curproc->p_pid) { + atomic_dec(&q->use_count); + DRM_ERROR("Process %d using buffer owned by %d\n", + curproc->p_pid, buf->pid); + return EINVAL; + } + if (buf->list != DRM_LIST_NONE) { + atomic_dec(&q->use_count); + DRM_ERROR("Process %d using buffer %d on list %d\n", + curproc->p_pid, buf->idx, buf->list); + } + buf->used = d->send_sizes[i]; + buf->while_locked = while_locked; + buf->context = d->context; + if (!buf->used) { + DRM_ERROR("Queueing 0 length buffer\n"); + } + if (buf->pending) { + atomic_dec(&q->use_count); + DRM_ERROR("Queueing pending buffer:" + " buffer %d, offset %d\n", + d->send_indices[i], i); + return EINVAL; + } + if (buf->waiting) { + atomic_dec(&q->use_count); + DRM_ERROR("Queueing waiting buffer:" + " buffer %d, offset %d\n", + d->send_indices[i], i); + return EINVAL; + } + buf->waiting = 1; + if (atomic_read(&q->use_count) == 1 + || atomic_read(&q->finalization)) { + drm_free_buffer(dev, buf); + } else { + drm_waitlist_put(&q->waitlist, buf); + atomic_inc(&q->total_queued); + } + } + atomic_dec(&q->use_count); + + return 0; +} + +static int drm_dma_get_buffers_of_order(drm_device_t *dev, drm_dma_t *d, + int order) +{ + int i; + int error; + drm_buf_t *buf; + drm_device_dma_t *dma = dev->dma; + + for (i = d->granted_count; i < d->request_count; i++) { + buf = drm_freelist_get(&dma->bufs[order].freelist, + d->flags & _DRM_DMA_WAIT); + if (!buf) break; + if (buf->pending || buf->waiting) { + DRM_ERROR("Free buffer %d in use by %d (w%d, p%d)\n", + buf->idx, + buf->pid, + buf->waiting, + buf->pending); + } + buf->pid = curproc->p_pid; + error = copyout(&buf->idx, + &d->request_indices[i], + sizeof(buf->idx)); + if (error) + return error; + error = copyout(&buf->total, + &d->request_sizes[i], + sizeof(buf->total)); + if (error) + return error; + ++d->granted_count; + } + return 0; +} + + +int drm_dma_get_buffers(drm_device_t *dev, drm_dma_t *dma) +{ + int order; + int retcode = 0; + int tmp_order; + + order = drm_order(dma->request_size); + + dma->granted_count = 0; + retcode = drm_dma_get_buffers_of_order(dev, dma, order); + + if (dma->granted_count < dma->request_count + && (dma->flags & _DRM_DMA_SMALLER_OK)) { + for (tmp_order = order - 1; + !retcode + && dma->granted_count < dma->request_count + && tmp_order >= DRM_MIN_ORDER; + --tmp_order) { + + retcode = drm_dma_get_buffers_of_order(dev, dma, + tmp_order); + } + } + + if (dma->granted_count < dma->request_count + && (dma->flags & _DRM_DMA_LARGER_OK)) { + for (tmp_order = order + 1; + !retcode + && dma->granted_count < dma->request_count + && tmp_order <= DRM_MAX_ORDER; + ++tmp_order) { + + retcode = drm_dma_get_buffers_of_order(dev, dma, + tmp_order); + } + } + return 0; +} diff --git a/bsd/drm/drawable.c b/bsd/drm/drawable.c new file mode 100644 index 00000000..d8005af6 --- /dev/null +++ b/bsd/drm/drawable.c @@ -0,0 +1,50 @@ +/* drawable.c -- IOCTLs for drawables -*- c -*- + * Created: Tue Feb 2 08:37:54 1999 by faith@precisioninsight.com + * Revised: Fri Aug 20 09:27:03 1999 by faith@precisioninsight.com + * + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * $PI: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/drawable.c,v 1.3 1999/08/30 13:05:00 faith Exp $ + * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/drawable.c,v 1.1 1999/09/25 14:37:58 dawes Exp $ + * + */ + +#define __NO_VERSION__ +#include "drmP.h" + +int drm_adddraw(dev_t kdev, u_long cmd, caddr_t data, + int flags, struct proc *p) +{ + drm_draw_t draw; + + draw.handle = 0; /* NOOP */ + DRM_DEBUG("%d\n", draw.handle); + *(drm_draw_t *) data = draw; + return 0; +} + +int drm_rmdraw(dev_t kdev, u_long cmd, caddr_t data, + int flags, struct proc *p) +{ + return 0; /* NOOP */ +} diff --git a/bsd/drm/drmstat.c b/bsd/drm/drmstat.c new file mode 100644 index 00000000..0ce76b01 --- /dev/null +++ b/bsd/drm/drmstat.c @@ -0,0 +1,418 @@ +/* drmstat.c -- DRM device status and testing program + * Created: Tue Jan 5 08:19:24 1999 by faith@precisioninsight.com + * Revised: Sun Aug 1 11:02:00 1999 by faith@precisioninsight.com + * + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * $PI: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/drmstat.c,v 1.28 1999/08/04 18:12:11 faith Exp $ + * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/drmstat.c,v 1.1 1999/09/25 14:37:59 dawes Exp $ + * + */ + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <sys/types.h> +#include <sys/time.h> +#include <sys/mman.h> +#include <strings.h> +#include <errno.h> +#include <signal.h> +#include <fcntl.h> +#include "xf86drm.h" + +int sigio_fd; + +static double usec(struct timeval *end, struct timeval *start) +{ + double e = end->tv_sec * 1000000 + end->tv_usec; + double s = start->tv_sec * 1000000 + start->tv_usec; + + return e - s; +} + +static void getversion(int fd) +{ + drmVersionPtr version; + + version = drmGetVersion(fd); + if (version) { + printf( "Name: %s\n", version->name ? version->name : "?" ); + printf( " Version: %d.%d.%d\n", + version->version_major, + version->version_minor, + version->version_patchlevel ); + printf( " Date: %s\n", version->date ? version->date : "?" ); + printf( " Desc: %s\n", version->desc ? version->desc : "?" ); + drmFreeVersion(version); + } else { + printf( "No driver available\n" ); + } +} + +void handler(int fd, void *oldctx, void *newctx) +{ + printf("Got fd %d\n", fd); +} + +void process_sigio(char *device) +{ + int fd; + +printf("%s\n", device); + if ((fd = open(device, 0)) < 0) { +printf("%d\n", errno); + drmError(-errno, __FUNCTION__); + exit(1); + } + + sigio_fd = fd; + drmInstallSIGIOHandler(fd, handler); + for (;;) sleep(60); +} + +int main(int argc, char **argv) +{ + int c; + int r = 0; + int fd = -1; + drmHandle handle; + void *address; + char *pt; + unsigned long count; + unsigned long offset; + unsigned long size; + drmContext context; + int loops; + char buf[1024]; + int i; + drmBufInfoPtr info; + drmBufMapPtr bufs; + drmLockPtr lock; + int secs; + + while ((c = getopt(argc, argv, + "lc:vo:O:f:s:w:W:b:r:R:P:L:C:XS:B:F:")) != EOF) + switch (c) { + case 'F': + count = strtoul(optarg, NULL, 0); + if (!fork()) { + dup(fd); + sleep(count); + } + close(fd); + break; + case 'v': getversion(fd); break; + case 'X': + if ((r = drmCreateContext(fd, &context))) { + drmError(r, argv[0]); + return 1; + } + printf( "Got %d\n", context); + break; + case 'S': + process_sigio(optarg); + break; + case 'C': + if ((r = drmSwitchToContext(fd, strtoul(optarg, NULL, 0)))) { + drmError(r, argv[0]); + return 1; + } + break; + case 'c': + if ((r = drmSetBusid(fd,optarg))) { + drmError(r, argv[0]); + return 1; + } + break; + case 'o': + if ((fd = drmOpen(optarg, NULL)) < 0) { + drmError(fd, argv[0]); + return 1; + } + break; + case 'O': + if ((fd = drmOpen(NULL, optarg)) < 0) { + drmError(fd, argv[0]); + return 1; + } + break; + case 'B': /* Test buffer allocation */ + count = strtoul(optarg, &pt, 0); + size = strtoul(pt+1, &pt, 0); + secs = strtoul(pt+1, NULL, 0); + { + drmDMAReq dma; + int *indices, *sizes; + + indices = alloca(sizeof(*indices) * count); + sizes = alloca(sizeof(*sizes) * count); + dma.context = context; + dma.send_count = 0; + dma.request_count = count; + dma.request_size = size; + dma.request_list = indices; + dma.request_sizes = sizes; + dma.flags = DRM_DMA_WAIT; + if ((r = drmDMA(fd, &dma))) { + drmError(r, argv[0]); + return 1; + } + for (i = 0; i < dma.granted_count; i++) { + printf("%5d: index = %d, size = %d\n", + i, dma.request_list[i], dma.request_sizes[i]); + } + sleep(secs); + drmFreeBufs(fd, dma.granted_count, indices); + } + break; + case 'b': + count = strtoul(optarg, &pt, 0); + size = strtoul(pt+1, NULL, 0); + if ((r = drmAddBufs(fd, count, size, 0, 0)) < 0) { + drmError(r, argv[0]); + return 1; + } + if (!(info = drmGetBufInfo(fd))) { + drmError(0, argv[0]); + return 1; + } + for (i = 0; i < info->count; i++) { + printf("%5d buffers of size %6d (low = %d, high = %d)\n", + info->list[i].count, + info->list[i].size, + info->list[i].low_mark, + info->list[i].high_mark); + } + if ((r = drmMarkBufs(fd, 0.50, 0.80))) { + drmError(r, argv[0]); + return 1; + } + if (!(info = drmGetBufInfo(fd))) { + drmError(0, argv[0]); + return 1; + } + for (i = 0; i < info->count; i++) { + printf("%5d buffers of size %6d (low = %d, high = %d)\n", + info->list[i].count, + info->list[i].size, + info->list[i].low_mark, + info->list[i].high_mark); + } + printf("===== /proc/drm/1/meminfo =====\n"); + sprintf(buf, "cat /proc/drm/1/meminfo"); + system(buf); +#if 1 + if (!(bufs = drmMapBufs(fd))) { + drmError(0, argv[0]); + return 1; + } + printf("===============================\n"); + printf( "%d bufs\n", bufs->count); + for (i = 0; i < bufs->count; i++) { + printf( " %4d: %8d bytes at %p\n", + i, + bufs->list[i].total, + bufs->list[i].address); + } + printf("===== /proc/drm/1/vmainfo =====\n"); + sprintf(buf, "cat /proc/drm/1/vmainfo"); + system(buf); +#endif + break; + case 'f': + offset = strtoul(optarg, &pt, 0); + size = strtoul(pt+1, NULL, 0); + handle = 0; + if ((r = drmAddMap(fd, offset, size, + DRM_FRAME_BUFFER, 0, &handle))) { + drmError(r, argv[0]); + return 1; + } + printf("0x%08lx:0x%04lx added\n", offset, size); + printf("===== /proc/drm/1/meminfo =====\n"); + sprintf(buf, "cat /proc/drm/1/meminfo"); + system(buf); + break; + case 'r': + case 'R': + offset = strtoul(optarg, &pt, 0); + size = strtoul(pt+1, NULL, 0); + handle = 0; + if ((r = drmAddMap(fd, offset, size, + DRM_REGISTERS, + c == 'R' ? DRM_READ_ONLY : 0, + &handle))) { + drmError(r, argv[0]); + return 1; + } + printf("0x%08lx:0x%04lx added\n", offset, size); + printf("===== /proc/drm/1/meminfo =====\n"); + sprintf(buf, "cat /proc/drm/1/meminfo"); + system(buf); + break; + case 's': + size = strtoul(optarg, &pt, 0); + handle = 0; + if ((r = drmAddMap(fd, 0, size, + DRM_SHM, DRM_CONTAINS_LOCK, + &handle))) { + drmError(r, argv[0]); + return 1; + } + printf("0x%04lx byte shm added at 0x%08lx\n", size, handle); + sprintf(buf, "sysctl hw.graphics.0.vm"); + system(buf); + break; + case 'P': + offset = strtoul(optarg, &pt, 0); + size = strtoul(pt+1, NULL, 0); + address = NULL; + if ((r = drmMap(fd, offset, size, &address))) { + drmError(r, argv[0]); + return 1; + } + printf("0x%08lx:0x%04lx mapped at %p for pid %d\n", + offset, size, address, getpid()); + printf("===== hw.graphics.0.vma =====\n"); + sprintf(buf, "sysctl hw.graphics.0.vma"); + system(buf); + mprotect((void *)offset, size, PROT_READ); + printf("===== hw.graphics.0.vma =====\n"); + sprintf(buf, "sysctl hw.graphics.0.vma"); + system(buf); + break; + case 'w': + case 'W': + offset = strtoul(optarg, &pt, 0); + size = strtoul(pt+1, NULL, 0); + address = NULL; + if ((r = drmMap(fd, offset, size, &address))) { + drmError(r, argv[0]); + return 1; + } + printf("0x%08lx:0x%04lx mapped at %p for pid %d\n", + offset, size, address, getpid()); + printf("===== /proc/%d/maps =====\n", getpid()); + sprintf(buf, "cat /proc/%d/maps", getpid()); + system(buf); + printf("===== /proc/drm/1/meminfo =====\n"); + sprintf(buf, "cat /proc/drm/1/meminfo"); + system(buf); + printf("===== /proc/drm/1/vmainfo =====\n"); + sprintf(buf, "cat /proc/drm/1/vmainfo"); + system(buf); + printf("===== READING =====\n"); + for (i = 0; i < 0x10; i++) + printf("%02x ", (unsigned int)((unsigned char *)address)[i]); + printf("\n"); + if (c == 'w') { + printf("===== WRITING =====\n"); + for (i = 0; i < size; i+=2) { + ((char *)address)[i] = i & 0xff; + ((char *)address)[i+1] = i & 0xff; + } + } + printf("===== READING =====\n"); + for (i = 0; i < 0x10; i++) + printf("%02x ", (unsigned int)((unsigned char *)address)[i]); + printf("\n"); + printf("===== /proc/drm/1/vmainfo =====\n"); + sprintf(buf, "cat /proc/drm/1/vmainfo"); + system(buf); + break; + case 'L': + context = strtoul(optarg, &pt, 0); + offset = strtoul(pt+1, &pt, 0); + size = strtoul(pt+1, &pt, 0); + loops = strtoul(pt+1, NULL, 0); + address = NULL; + if ((r = drmMap(fd, offset, size, &address))) { + drmError(r, argv[0]); + return 1; + } + lock = address; +#if 1 + { + int counter = 0; + struct timeval loop_start, loop_end; + struct timeval lock_start, lock_end; + double wt; +#define HISTOSIZE 9 + int histo[HISTOSIZE]; + int output = 0; + int fast = 0; + + if (loops < 0) { + loops = -loops; + ++output; + } + + for (i = 0; i < HISTOSIZE; i++) histo[i] = 0; + + gettimeofday(&loop_start, NULL); + for (i = 0; i < loops; i++) { + gettimeofday(&lock_start, NULL); + DRM_LIGHT_LOCK_COUNT(fd,lock,context,fast); + gettimeofday(&lock_end, NULL); + DRM_UNLOCK(fd,lock,context); + ++counter; + wt = usec(&lock_end, &lock_start); + if (wt <= 2.5) ++histo[8]; + if (wt < 5.0) ++histo[0]; + else if (wt < 50.0) ++histo[1]; + else if (wt < 500.0) ++histo[2]; + else if (wt < 5000.0) ++histo[3]; + else if (wt < 50000.0) ++histo[4]; + else if (wt < 500000.0) ++histo[5]; + else if (wt < 5000000.0) ++histo[6]; + else ++histo[7]; + if (output) printf( "%.2f uSec, %d fast\n", wt, fast); + } + gettimeofday(&loop_end, NULL); + printf( "Average wait time = %.2f usec, %d fast\n", + usec(&loop_end, &loop_start) / counter, fast); + printf( "%9d <= 2.5 uS\n", histo[8]); + printf( "%9d < 5 uS\n", histo[0]); + printf( "%9d < 50 uS\n", histo[1]); + printf( "%9d < 500 uS\n", histo[2]); + printf( "%9d < 5000 uS\n", histo[3]); + printf( "%9d < 50000 uS\n", histo[4]); + printf( "%9d < 500000 uS\n", histo[5]); + printf( "%9d < 5000000 uS\n", histo[6]); + printf( "%9d >= 5000000 uS\n", histo[7]); + } +#else + printf( "before lock: 0x%08x\n", lock->lock); + printf( "lock: 0x%08x\n", lock->lock); + sleep(5); + printf( "unlock: 0x%08x\n", lock->lock); +#endif + break; + default: + fprintf( stderr, "Usage: drmstat [options]\n" ); + return 1; + } + + return r; +} diff --git a/bsd/drm/fops.c b/bsd/drm/fops.c new file mode 100644 index 00000000..837fc7db --- /dev/null +++ b/bsd/drm/fops.c @@ -0,0 +1,260 @@ +/* fops.c -- File operations for DRM -*- c -*- + * Created: Mon Jan 4 08:58:31 1999 by faith@precisioninsight.com + * Revised: Tue Oct 12 08:48:59 1999 by faith@precisioninsight.com + * + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * $PI: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/fops.c,v 1.3 1999/08/20 15:36:45 faith Exp $ + * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/fops.c,v 1.1 1999/09/25 14:37:59 dawes Exp $ + * + */ + +#define __NO_VERSION__ +#include "drmP.h" +#include <sys/signalvar.h> +#include <sys/poll.h> + +drm_file_t *drm_find_file_by_proc(drm_device_t *dev, struct proc *p) +{ + uid_t uid = p->p_cred->p_svuid; + pid_t pid = p->p_pid; + drm_file_t *priv; + + TAILQ_FOREACH(priv, &dev->files, link) + if (priv->pid == pid && priv->uid == uid) + return priv; + return NULL; +} + + +/* drm_open is called whenever a process opens /dev/drm. */ + +int drm_open_helper(dev_t kdev, int flags, int fmt, struct proc *p, + drm_device_t *dev) +{ + int m = minor(kdev); + drm_file_t *priv; + + if (flags & O_EXCL) + return EBUSY; /* No exclusive opens */ + + dev->flags = flags; + + DRM_DEBUG("pid = %d, device = %p, minor = %d\n", + p->p_pid, dev->device, m); + + priv = drm_find_file_by_proc(dev, p); + if (priv) { + priv->refs++; + } else { + priv = drm_alloc(sizeof(*priv), DRM_MEM_FILES); + memset(priv, 0, sizeof(*priv)); + priv->uid = p->p_cred->p_svuid; + priv->pid = p->p_pid; + priv->refs = 1; + priv->minor = m; + priv->devXX = dev; + priv->ioctl_count = 0; + priv->authenticated = !suser(p); + lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, p); + TAILQ_INSERT_TAIL(&dev->files, priv, link); + lockmgr(&dev->dev_lock, LK_RELEASE, 0, p); + } + + kdev->si_drv1 = dev; + + return 0; +} + +int drm_write(dev_t kdev, struct uio *uio, int ioflag) +{ + struct proc *p = curproc; + drm_device_t *dev = kdev->si_drv1; + + DRM_DEBUG("pid = %d, device = %p, open_count = %d\n", + p->p_pid, dev->device, dev->open_count); + return 0; +} + +/* drm_release is called whenever a process closes /dev/drm*. */ + +int drm_close(dev_t kdev, int fflag, int devtype, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + drm_file_t *priv; + + DRM_DEBUG("pid = %d, device = %p, open_count = %d\n", + p->p_pid, dev->device, dev->open_count); + + priv = drm_find_file_by_proc(dev, p); + if (!priv) { + DRM_DEBUG("can't find authenticator\n"); + return EINVAL; + } + + if (dev->lock.hw_lock && _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock) + && dev->lock.pid == p->p_pid) { + DRM_ERROR("Process %d dead, freeing lock for context %d\n", + p->p_pid, + _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)); + drm_lock_free(dev, + &dev->lock.hw_lock->lock, + _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock)); + + /* FIXME: may require heavy-handed reset of + hardware at this point, possibly + processed via a callback to the X + server. */ + } + drm_reclaim_buffers(dev, priv->pid); + + funsetown(dev->buf_sigio); + + lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, p); + priv = drm_find_file_by_proc(dev, p); + if (priv) { + priv->refs--; + if (!priv->refs) { + TAILQ_REMOVE(&dev->files, priv, link); + drm_free(priv, sizeof(*priv), DRM_MEM_FILES); + } + } + lockmgr(&dev->dev_lock, LK_RELEASE, 0, p); + + return 0; +} + +/* The drm_read and drm_write_string code (especially that which manages + the circular buffer), is based on Alessandro Rubini's LINUX DEVICE + DRIVERS (Cambridge: O'Reilly, 1998), pages 111-113. */ + +ssize_t drm_read(dev_t kdev, struct uio *uio, int ioflag) +{ + drm_device_t *dev = kdev->si_drv1; + int left; + int avail; + int send; + int cur; + int error = 0; + + DRM_DEBUG("%p, %p\n", dev->buf_rp, dev->buf_wp); + + while (dev->buf_rp == dev->buf_wp) { + DRM_DEBUG(" sleeping\n"); + if (dev->flags & FASYNC) { + return EWOULDBLOCK; + } + error = tsleep(&dev->buf_rp, PZERO|PCATCH, "drmrd", 0); + if (error) { + DRM_DEBUG(" interrupted\n"); + return error; + } + DRM_DEBUG(" awake\n"); + } + + left = (dev->buf_rp + DRM_BSZ - dev->buf_wp) % DRM_BSZ; + avail = DRM_BSZ - left; + send = DRM_MIN(avail, uio->uio_resid); + + while (send) { + if (dev->buf_wp > dev->buf_rp) { + cur = DRM_MIN(send, dev->buf_wp - dev->buf_rp); + } else { + cur = DRM_MIN(send, dev->buf_end - dev->buf_rp); + } + error = uiomove(dev->buf_rp, cur, uio); + if (error) + break; + dev->buf_rp += cur; + if (dev->buf_rp == dev->buf_end) dev->buf_rp = dev->buf; + send -= cur; + } + + wakeup(&dev->buf_wp); + + return error; +} + +int drm_write_string(drm_device_t *dev, const char *s) +{ + int left = (dev->buf_rp + DRM_BSZ - dev->buf_wp) % DRM_BSZ; + int send = strlen(s); + int count; + + DRM_DEBUG("%d left, %d to send (%p, %p)\n", + left, send, dev->buf_rp, dev->buf_wp); + + if (left == 1 || dev->buf_wp != dev->buf_rp) { + DRM_ERROR("Buffer not empty (%d left, wp = %p, rp = %p)\n", + left, + dev->buf_wp, + dev->buf_rp); + } + + while (send) { + if (dev->buf_wp >= dev->buf_rp) { + count = DRM_MIN(send, dev->buf_end - dev->buf_wp); + if (count == left) --count; /* Leave a hole */ + } else { + count = DRM_MIN(send, dev->buf_rp - dev->buf_wp - 1); + } + strncpy(dev->buf_wp, s, count); + dev->buf_wp += count; + if (dev->buf_wp == dev->buf_end) dev->buf_wp = dev->buf; + send -= count; + } + + if (dev->buf_selecting) { + dev->buf_selecting = 0; + selwakeup(&dev->buf_sel); + } + + DRM_DEBUG("dev->buf_sigio=%p\n", dev->buf_sigio); + if (dev->buf_sigio) { + DRM_DEBUG("dev->buf_sigio->sio_pgid=%d\n", dev->buf_sigio->sio_pgid); + pgsigio(dev->buf_sigio, SIGIO, 0); + } + + DRM_DEBUG("waking\n"); + wakeup(&dev->buf_rp); + return 0; +} + +int drm_poll(dev_t kdev, int events, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + int s; + int revents = 0; + + s = spldrm(); + if (events & (POLLIN | POLLRDNORM)) { + int left = (dev->buf_rp + DRM_BSZ - dev->buf_wp) % DRM_BSZ; + if (left > 0) + revents |= events & (POLLIN | POLLRDNORM); + else + selrecord(p, &dev->buf_sel); + } + splx(s); + + return revents; +} diff --git a/bsd/drm/init.c b/bsd/drm/init.c new file mode 100644 index 00000000..44e9be99 --- /dev/null +++ b/bsd/drm/init.c @@ -0,0 +1,101 @@ +/* init.c -- Setup/Cleanup for DRM -*- c -*- + * Created: Mon Jan 4 08:58:31 1999 by faith@precisioninsight.com + * Revised: Fri Aug 20 09:27:02 1999 by faith@precisioninsight.com + * + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * $PI: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/init.c,v 1.3 1999/08/20 15:07:01 faith Exp $ + * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/init.c,v 1.1 1999/09/25 14:38:01 dawes Exp $ + * + */ + +#define __NO_VERSION__ +#include "drmP.h" + +MODULE_VERSION(drm, 1); + +int drm_flags = 0; + +/* drm_parse_option parses a single option. See description for + drm_parse_drm for details. */ + +static void drm_parse_option(char *s) +{ + char *c, *r; + + DRM_DEBUG("\"%s\"\n", s); + if (!s || !*s) return; + for (c = s; *c && *c != ':'; c++); /* find : or \0 */ + if (*c) r = c + 1; else r = NULL; /* remember remainder */ + *c = '\0'; /* terminate */ + if (!strcmp(s, "noctx")) { + drm_flags |= DRM_FLAG_NOCTX; + DRM_INFO("Server-mediated context switching OFF\n"); + return; + } + if (!strcmp(s, "debug")) { + drm_flags |= DRM_FLAG_DEBUG; + DRM_INFO("Debug messages ON\n"); + return; + } + DRM_ERROR("\"%s\" is not a valid option\n", s); + return; +} + +/* drm_parse_options parse the insmod "drm=" options, or the command-line + * options passed to the kernel via LILO. The grammar of the format is as + * follows: + * + * drm ::= 'drm=' option_list + * option_list ::= option [ ';' option_list ] + * option ::= 'device:' major + * | 'debug' + * | 'noctx' + * major ::= INTEGER + * + * Note that 's' contains option_list without the 'drm=' part. + * + * device=major,minor specifies the device number used for /dev/drm + * if major == 0 then the misc device is used + * if major == 0 and minor == 0 then dynamic misc allocation is used + * debug=on specifies that debugging messages will be printk'd + * debug=trace specifies that each function call will be logged via printk + * debug=off turns off all debugging options + * + */ + +void drm_parse_options(char *s) +{ + char *h, *t, *n; + + DRM_DEBUG("\"%s\"\n", s ?: ""); + if (!s || !*s) return; + + for (h = t = n = s; h && *h; h = n) { + for (; *t && *t != ';'; t++); /* find ; or \0 */ + if (*t) n = t + 1; else n = NULL; /* remember next */ + *t = '\0'; /* terminate */ + drm_parse_option(h); /* parse */ + } +} + diff --git a/bsd/drm/ioctl.c b/bsd/drm/ioctl.c new file mode 100644 index 00000000..55bdeeda --- /dev/null +++ b/bsd/drm/ioctl.c @@ -0,0 +1,120 @@ +/* ioctl.c -- IOCTL processing for DRM -*- c -*- + * Created: Fri Jan 8 09:01:26 1999 by faith@precisioninsight.com + * Revised: Fri Aug 20 09:27:02 1999 by faith@precisioninsight.com + * + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * $PI: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/ioctl.c,v 1.3 1999/08/30 13:05:00 faith Exp $ + * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/ioctl.c,v 1.1 1999/09/25 14:38:01 dawes Exp $ + * + */ + +#define __NO_VERSION__ +#include "drmP.h" +#include <sys/bus.h> +#include <pci/pcivar.h> + +int +drm_irq_busid(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p) +{ + drm_irq_busid_t id; + devclass_t pci; + device_t bus, dev; + device_t *kids; + int error, i, num_kids; + + id = *(drm_irq_busid_t *) data; + pci = devclass_find("pci"); + if (!pci) + return ENOENT; + bus = devclass_get_device(pci, id.busnum); + if (!bus) + return ENOENT; + error = device_get_children(bus, &kids, &num_kids); + if (error) + return error; + + dev = 0; + for (i = 0; i < num_kids; i++) { + dev = kids[i]; + if (pci_get_slot(dev) == id.devnum + && pci_get_function(dev) == id.funcnum) + break; + } + + free(kids, M_TEMP); + + if (i != num_kids) + id.irq = pci_get_irq(dev); + else + id.irq = 0; + + DRM_DEBUG("%d:%d:%d => IRQ %d\n", + id.busnum, id.devnum, id.funcnum, id.irq); + *(drm_irq_busid_t *) data = id; + + return 0; +} + +int +drm_getunique(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + drm_unique_t u; + int error; + + u = *(drm_unique_t *) data; + if (u.unique_len >= dev->unique_len) { + error = copyout(dev->unique, u.unique, dev->unique_len); + if (error) + return error; + } + u.unique_len = dev->unique_len; + *(drm_unique_t *) data = u; + return 0; +} + +int +drm_setunique(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + drm_unique_t u; + int error; + + if (dev->unique_len || dev->unique) return EBUSY; + + u = *(drm_unique_t *) data; + + dev->unique_len = u.unique_len; + dev->unique = drm_alloc(u.unique_len + 1, DRM_MEM_DRIVER); + error = copyin(u.unique, dev->unique, dev->unique_len); + if (error) + return error; + dev->unique[dev->unique_len] = '\0'; + + dev->devname = drm_alloc(strlen(dev->name) + strlen(dev->unique) + 2, + DRM_MEM_DRIVER); + sprintf(dev->devname, "%s@%s", dev->name, dev->unique); + + return 0; +} diff --git a/bsd/drm/lists.c b/bsd/drm/lists.c new file mode 100644 index 00000000..9f9b5f7a --- /dev/null +++ b/bsd/drm/lists.c @@ -0,0 +1,258 @@ +/* lists.c -- Buffer list handling routines -*- c -*- + * Created: Mon Apr 19 20:54:22 1999 by faith@precisioninsight.com + * Revised: Fri Aug 20 09:27:01 1999 by faith@precisioninsight.com + * + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * $PI: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/lists.c,v 1.3 1999/08/20 15:07:02 faith Exp $ + * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/lists.c,v 1.1 1999/09/25 14:38:01 dawes Exp $ + * + */ + +#define __NO_VERSION__ +#include "drmP.h" + +int drm_waitlist_create(drm_waitlist_t *bl, int count) +{ + DRM_DEBUG("%d\n", count); + if (bl->count) return EINVAL; + + bl->count = count; + bl->bufs = drm_alloc((bl->count + 2) * sizeof(*bl->bufs), + DRM_MEM_BUFLISTS); + bl->rp = bl->bufs; + bl->wp = bl->bufs; + bl->end = &bl->bufs[bl->count+1]; + simple_lock_init(&bl->write_lock); + simple_lock_init(&bl->read_lock); + return 0; +} + +int drm_waitlist_destroy(drm_waitlist_t *bl) +{ + DRM_DEBUG("\n"); + if (bl->rp != bl->wp) return EINVAL; + if (bl->bufs) drm_free(bl->bufs, + (bl->count + 2) * sizeof(*bl->bufs), + DRM_MEM_BUFLISTS); + bl->count = 0; + bl->bufs = NULL; + bl->rp = NULL; + bl->wp = NULL; + bl->end = NULL; + return 0; +} + +int drm_waitlist_put(drm_waitlist_t *bl, drm_buf_t *buf) +{ + int left; + int s; + + left = DRM_LEFTCOUNT(bl); + DRM_DEBUG("put %d (%d left, rp = %p, wp = %p)\n", + buf->idx, left, bl->rp, bl->wp); + if (!left) { + DRM_ERROR("Overflow while adding buffer %d from pid %d\n", + buf->idx, buf->pid); + return EINVAL; + } +#if DRM_DMA_HISTOGRAM + getnanotime(&buf->time_queued); +#endif + buf->list = DRM_LIST_WAIT; + + simple_lock(&bl->write_lock); + s = spldrm(); + *bl->wp = buf; + if (++bl->wp >= bl->end) bl->wp = bl->bufs; + splx(s); + simple_unlock(&bl->write_lock); + + return 0; +} + +drm_buf_t *drm_waitlist_get(drm_waitlist_t *bl) +{ + drm_buf_t *buf; + int s; + + simple_lock(&bl->read_lock); + s = spldrm(); + buf = *bl->rp; + if (bl->rp == bl->wp) { + splx(s); + simple_unlock(&bl->read_lock); + return NULL; + } + if (++bl->rp >= bl->end) bl->rp = bl->bufs; + splx(s); + simple_unlock(&bl->read_lock); + + DRM_DEBUG("get %d\n", buf->idx); + return buf; +} + +int drm_freelist_create(drm_freelist_t *bl, int count) +{ + DRM_DEBUG("\n"); + atomic_set(&bl->count, 0); + bl->next = NULL; + bl->waiting = 0; + bl->low_mark = 0; + bl->high_mark = 0; + atomic_set(&bl->wfh, 0); + ++bl->initialized; + return 0; +} + +int drm_freelist_destroy(drm_freelist_t *bl) +{ + DRM_DEBUG("\n"); + atomic_set(&bl->count, 0); + bl->next = NULL; + return 0; +} + +int drm_freelist_put(drm_device_t *dev, drm_freelist_t *bl, drm_buf_t *buf) +{ + unsigned int old; + unsigned int new; + char failed; + int count = 0; + drm_device_dma_t *dma = dev->dma; + + if (!dma) { + DRM_ERROR("No DMA support\n"); + return 1; + } + + if (buf->waiting || buf->pending || buf->list == DRM_LIST_FREE) { + DRM_ERROR("Freed buffer %d: w%d, p%d, l%d\n", + buf->idx, buf->waiting, buf->pending, buf->list); + } + DRM_DEBUG("%d, count = %d, wfh = %d, w%d, p%d\n", + buf->idx, atomic_read(&bl->count), atomic_read(&bl->wfh), + buf->waiting, buf->pending); + if (!bl) return 1; +#if DRM_DMA_HISTOGRAM + getnanotime(&buf->time_freed); + drm_histogram_compute(dev, buf); +#endif + buf->list = DRM_LIST_FREE; + do { + old = (unsigned long)bl->next; + buf->next = (void *)old; + new = (unsigned long)buf; + _DRM_CAS(&bl->next, old, new, failed); + if (++count > DRM_LOOPING_LIMIT) { + DRM_ERROR("Looping\n"); + return 1; + } + } while (failed); + atomic_inc(&bl->count); + if (atomic_read(&bl->count) > dma->buf_count) { + DRM_ERROR("%d of %d buffers free after addition of %d\n", + atomic_read(&bl->count), dma->buf_count, buf->idx); + return 1; + } + /* Check for high water mark */ + if (atomic_read(&bl->wfh) && atomic_read(&bl->count)>=bl->high_mark) { + atomic_set(&bl->wfh, 0); + if (bl->waiting) + wakeup(&bl->waiting); + } + return 0; +} + +static drm_buf_t *drm_freelist_try(drm_freelist_t *bl) +{ + unsigned int old; + unsigned int new; + char failed; + drm_buf_t *buf; + int count = 0; + + if (!bl) return NULL; + + /* Get buffer */ + do { + old = (unsigned int)bl->next; + if (!old) { + return NULL; + } + new = (unsigned long)bl->next->next; + _DRM_CAS(&bl->next, old, new, failed); + if (++count > DRM_LOOPING_LIMIT) { + DRM_ERROR("Looping\n"); + return NULL; + } + } while (failed); + atomic_dec(&bl->count); + + buf = (drm_buf_t *)old; + buf->next = NULL; + buf->list = DRM_LIST_NONE; + DRM_DEBUG("%d, count = %d, wfh = %d, w%d, p%d\n", + buf->idx, atomic_read(&bl->count), atomic_read(&bl->wfh), + buf->waiting, buf->pending); + if (buf->waiting || buf->pending) { + DRM_ERROR("Free buffer %d: w%d, p%d, l%d\n", + buf->idx, buf->waiting, buf->pending, buf->list); + } + + return buf; +} + +drm_buf_t *drm_freelist_get(drm_freelist_t *bl, int block) +{ + drm_buf_t *buf = NULL; + int error; + + if (!bl || !bl->initialized) return NULL; + + /* Check for low water mark */ + if (atomic_read(&bl->count) <= bl->low_mark) /* Became low */ + atomic_set(&bl->wfh, 1); + if (atomic_read(&bl->wfh)) { + DRM_DEBUG("Block = %d, count = %d, wfh = %d\n", + block, atomic_read(&bl->count), + atomic_read(&bl->wfh)); + if (block) { + atomic_inc(&bl->waiting); + for (;;) { + if (!atomic_read(&bl->wfh) + && (buf = drm_freelist_try(bl))) break; + error = tsleep(&bl->waiting, PZERO|PCATCH, + "drmfg", 0); + if (error) + break; + } + atomic_dec(&bl->waiting); + } + return buf; + } + + DRM_DEBUG("Count = %d, wfh = %d\n", + atomic_read(&bl->count), atomic_read(&bl->wfh)); + return drm_freelist_try(bl); +} diff --git a/bsd/drm/lock.c b/bsd/drm/lock.c new file mode 100644 index 00000000..cd14a882 --- /dev/null +++ b/bsd/drm/lock.c @@ -0,0 +1,220 @@ +/* lock.c -- IOCTLs for locking -*- c -*- + * Created: Tue Feb 2 08:37:54 1999 by faith@precisioninsight.com + * Revised: Tue Oct 12 08:51:06 1999 by faith@precisioninsight.com + * + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * $PI: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/lock.c,v 1.5 1999/08/30 13:05:00 faith Exp $ + * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/lock.c,v 1.1 1999/09/25 14:38:01 dawes Exp $ + * + */ + +#define __NO_VERSION__ +#include "drmP.h" + +int +drm_block(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p) +{ + DRM_DEBUG("\n"); + return 0; +} + +int +drm_unblock(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p) +{ + DRM_DEBUG("\n"); + return 0; +} + +int drm_lock_take(__volatile__ unsigned int *lock, unsigned int context) +{ + unsigned int old; + unsigned int new; + char failed; + + DRM_DEBUG("%d attempts\n", context); + do { + old = *lock; + if (old & _DRM_LOCK_HELD) new = old | _DRM_LOCK_CONT; + else new = context | _DRM_LOCK_HELD; + _DRM_CAS(lock, old, new, failed); + } while (failed); + if (_DRM_LOCKING_CONTEXT(old) == context) { + if (old & _DRM_LOCK_HELD) { + if (context != DRM_KERNEL_CONTEXT) { + DRM_ERROR("%d holds heavyweight lock\n", + context); + } + return 0; + } + } + if (new == (context | _DRM_LOCK_HELD)) { + /* Have lock */ + DRM_DEBUG("%d\n", context); + return 1; + } + DRM_DEBUG("%d unable to get lock held by %d\n", + context, _DRM_LOCKING_CONTEXT(old)); + return 0; +} + +/* This takes a lock forcibly and hands it to context. Should ONLY be used + inside *_unlock to give lock to kernel before calling *_dma_schedule. */ +int drm_lock_transfer(drm_device_t *dev, + __volatile__ unsigned int *lock, unsigned int context) +{ + unsigned int old; + unsigned int new; + char failed; + + dev->lock.pid = 0; + do { + old = *lock; + new = context | _DRM_LOCK_HELD; + _DRM_CAS(lock, old, new, failed); + } while (failed); + DRM_DEBUG("%d => %d\n", _DRM_LOCKING_CONTEXT(old), context); + return 1; +} + +int drm_lock_free(drm_device_t *dev, + __volatile__ unsigned int *lock, unsigned int context) +{ + unsigned int old; + unsigned int new; + char failed; + pid_t pid = dev->lock.pid; + + DRM_DEBUG("%d\n", context); + dev->lock.pid = 0; + do { + old = *lock; + new = 0; + _DRM_CAS(lock, old, new, failed); + } while (failed); + if (_DRM_LOCK_IS_HELD(old) && _DRM_LOCKING_CONTEXT(old) != context) { + DRM_ERROR("%d freed heavyweight lock held by %d (pid %d)\n", + context, + _DRM_LOCKING_CONTEXT(old), + pid); + return 1; + } + wakeup(&dev->lock.lock_queue); + return 0; +} + +static int drm_flush_queue(drm_device_t *dev, int context) +{ + int ret = 0; + int error; + drm_queue_t *q = dev->queuelist[context]; + + DRM_DEBUG("\n"); + + atomic_inc(&q->use_count); + if (atomic_read(&q->use_count) > 1) { + atomic_inc(&q->block_write); + atomic_inc(&q->block_count); + error = tsleep(&q->flush_queue, PCATCH|PZERO, "drmfq", 0); + if (error) + return error; + atomic_dec(&q->block_count); + } + atomic_dec(&q->use_count); + atomic_inc(&q->total_flushed); + + /* NOTE: block_write is still incremented! + Use drm_flush_unlock_queue to decrement. */ + return ret; +} + +static int drm_flush_unblock_queue(drm_device_t *dev, int context) +{ + drm_queue_t *q = dev->queuelist[context]; + + DRM_DEBUG("\n"); + + atomic_inc(&q->use_count); + if (atomic_read(&q->use_count) > 1) { + if (atomic_read(&q->block_write)) { + atomic_dec(&q->block_write); + wakeup(&q->write_queue); + } + } + atomic_dec(&q->use_count); + return 0; +} + +int drm_flush_block_and_flush(drm_device_t *dev, int context, + drm_lock_flags_t flags) +{ + int ret = 0; + int i; + + DRM_DEBUG("\n"); + + if (flags & _DRM_LOCK_FLUSH) { + ret = drm_flush_queue(dev, DRM_KERNEL_CONTEXT); + if (!ret) ret = drm_flush_queue(dev, context); + } + if (flags & _DRM_LOCK_FLUSH_ALL) { + for (i = 0; !ret && i < dev->queue_count; i++) { + ret = drm_flush_queue(dev, i); + } + } + return ret; +} + +int drm_flush_unblock(drm_device_t *dev, int context, drm_lock_flags_t flags) +{ + int ret = 0; + int i; + + DRM_DEBUG("\n"); + + if (flags & _DRM_LOCK_FLUSH) { + ret = drm_flush_unblock_queue(dev, DRM_KERNEL_CONTEXT); + if (!ret) ret = drm_flush_unblock_queue(dev, context); + } + if (flags & _DRM_LOCK_FLUSH_ALL) { + for (i = 0; !ret && i < dev->queue_count; i++) { + ret = drm_flush_unblock_queue(dev, i); + } + } + + return ret; +} + +int drm_finish(dev_t kdev, u_long cmd, caddr_t data, int flags, struct proc *p) +{ + drm_device_t *dev = kdev->si_drv1; + int ret = 0; + drm_lock_t lock; + + DRM_DEBUG("\n"); + + lock = *(drm_lock_t *) data; + ret = drm_flush_block_and_flush(dev, lock.context, lock.flags); + drm_flush_unblock(dev, lock.context, lock.flags); + return ret; +} diff --git a/bsd/drm/memory.c b/bsd/drm/memory.c new file mode 100644 index 00000000..a8a936df --- /dev/null +++ b/bsd/drm/memory.c @@ -0,0 +1,458 @@ +/* memory.c -- Memory management wrappers for DRM -*- c -*- + * Created: Thu Feb 4 14:00:34 1999 by faith@precisioninsight.com + * Revised: Fri Aug 20 13:04:33 1999 by faith@precisioninsight.com + * + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * $PI: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/memory.c,v 1.4 1999/08/20 20:00:53 faith Exp $ + * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/memory.c,v 1.1 1999/09/25 14:38:02 dawes Exp $ + * + */ + +#define __NO_VERSION__ +#include "drmP.h" + +#include <vm/vm.h> +#include <vm/pmap.h> +#ifdef DRM_AGP +#include <sys/agpio.h> +#endif + +MALLOC_DEFINE(M_DRM, "drm", "DRM Data Structures"); + +typedef struct drm_mem_stats { + const char *name; + int succeed_count; + int free_count; + int fail_count; + unsigned long bytes_allocated; + unsigned long bytes_freed; +} drm_mem_stats_t; + +#ifdef SMP +static struct simplelock drm_mem_lock; +#endif +static unsigned long drm_ram_available = 0; +static unsigned long drm_ram_used = 0; +static drm_mem_stats_t drm_mem_stats[] = { + [DRM_MEM_DMA] = { "dmabufs" }, + [DRM_MEM_SAREA] = { "sareas" }, + [DRM_MEM_DRIVER] = { "driver" }, + [DRM_MEM_MAGIC] = { "magic" }, + [DRM_MEM_IOCTLS] = { "ioctltab" }, + [DRM_MEM_MAPS] = { "maplist" }, + [DRM_MEM_VMAS] = { "vmalist" }, + [DRM_MEM_BUFS] = { "buflist" }, + [DRM_MEM_SEGS] = { "seglist" }, + [DRM_MEM_PAGES] = { "pagelist" }, + [DRM_MEM_FILES] = { "files" }, + [DRM_MEM_QUEUES] = { "queues" }, + [DRM_MEM_CMDS] = { "commands" }, + [DRM_MEM_MAPPINGS] = { "mappings" }, + [DRM_MEM_BUFLISTS] = { "buflists" }, + [DRM_MEM_AGPLISTS] = { "agplist" }, + [DRM_MEM_TOTALAGP] = { "totalagp" }, + [DRM_MEM_BOUNDAGP] = { "boundagp" }, + [DRM_MEM_CTXBITMAP] = { "ctxbitmap"}, + { NULL, 0, } /* Last entry must be null */ +}; + +void drm_mem_init(void) +{ + drm_mem_stats_t *mem; + + for (mem = drm_mem_stats; mem->name; ++mem) { + mem->succeed_count = 0; + mem->free_count = 0; + mem->fail_count = 0; + mem->bytes_allocated = 0; + mem->bytes_freed = 0; + } + + drm_ram_available = 0; /* si.totalram; */ + drm_ram_used = 0; +} + +/* drm_mem_info is called whenever a process reads /dev/drm/mem. */ + +static int _drm_mem_info SYSCTL_HANDLER_ARGS +{ + drm_mem_stats_t *pt; + char buf[128]; + int error; + + DRM_SYSCTL_PRINT(" total counts " + " | outstanding \n"); + DRM_SYSCTL_PRINT("type alloc freed fail bytes freed" + " | allocs bytes\n\n"); + DRM_SYSCTL_PRINT("%-9.9s %5d %5d %4d %10lu |\n", + "system", 0, 0, 0, drm_ram_available); + DRM_SYSCTL_PRINT("%-9.9s %5d %5d %4d %10lu |\n", + "locked", 0, 0, 0, drm_ram_used); + DRM_SYSCTL_PRINT("\n"); + for (pt = drm_mem_stats; pt->name; pt++) { + DRM_SYSCTL_PRINT("%-9.9s %5d %5d %4d %10lu %10lu | %6d %10ld\n", + pt->name, + pt->succeed_count, + pt->free_count, + pt->fail_count, + pt->bytes_allocated, + pt->bytes_freed, + pt->succeed_count - pt->free_count, + (long)pt->bytes_allocated + - (long)pt->bytes_freed); + } + SYSCTL_OUT(req, "", 1); + + return 0; +} + +int drm_mem_info SYSCTL_HANDLER_ARGS +{ + int ret; + + simple_lock(&drm_mem_lock); + ret = _drm_mem_info(oidp, arg1, arg2, req); + simple_unlock(&drm_mem_lock); + return ret; +} + +void *drm_alloc(size_t size, int area) +{ + void *pt; + + if (!size) { + DRM_MEM_ERROR(area, "Allocating 0 bytes\n"); + return NULL; + } + + if (!(pt = malloc(size, M_DRM, M_NOWAIT))) { + simple_lock(&drm_mem_lock); + ++drm_mem_stats[area].fail_count; + simple_unlock(&drm_mem_lock); + return NULL; + } + simple_lock(&drm_mem_lock); + ++drm_mem_stats[area].succeed_count; + drm_mem_stats[area].bytes_allocated += size; + simple_unlock(&drm_mem_lock); + return pt; +} + +void *drm_realloc(void *oldpt, size_t oldsize, size_t size, int area) +{ + void *pt; + + if (!(pt = drm_alloc(size, area))) return NULL; + if (oldpt && oldsize) { + memcpy(pt, oldpt, oldsize); + drm_free(oldpt, oldsize, area); + } + return pt; +} + +char *drm_strdup(const char *s, int area) +{ + char *pt; + int length = s ? strlen(s) : 0; + + if (!(pt = drm_alloc(length+1, area))) return NULL; + strcpy(pt, s); + return pt; +} + +void drm_strfree(char *s, int area) +{ + unsigned int size; + + if (!s) return; + + size = 1 + (s ? strlen(s) : 0); + drm_free((void *)s, size, area); +} + +void drm_free(void *pt, size_t size, int area) +{ + int alloc_count; + int free_count; + + if (!pt) DRM_MEM_ERROR(area, "Attempt to free NULL pointer\n"); + else free(pt, M_DRM); + simple_lock(&drm_mem_lock); + drm_mem_stats[area].bytes_freed += size; + free_count = ++drm_mem_stats[area].free_count; + alloc_count = drm_mem_stats[area].succeed_count; + simple_unlock(&drm_mem_lock); + if (free_count > alloc_count) { + DRM_MEM_ERROR(area, "Excess frees: %d frees, %d allocs\n", + free_count, alloc_count); + } +} + +unsigned long drm_alloc_pages(int order, int area) +{ + vm_offset_t address; + unsigned long bytes = PAGE_SIZE << order; + unsigned long addr; + unsigned int sz; + + simple_lock(&drm_mem_lock); + if (drm_ram_used > +(DRM_RAM_PERCENT * drm_ram_available) / 100) { + simple_unlock(&drm_mem_lock); + return 0; + } + simple_unlock(&drm_mem_lock); + + address = (vm_offset_t) contigmalloc(1<<order, M_DRM, M_WAITOK, 0, ~0, 1, 0); + if (!address) { + simple_lock(&drm_mem_lock); + ++drm_mem_stats[area].fail_count; + simple_unlock(&drm_mem_lock); + return 0; + } + simple_lock(&drm_mem_lock); + ++drm_mem_stats[area].succeed_count; + drm_mem_stats[area].bytes_allocated += bytes; + drm_ram_used += bytes; + simple_unlock(&drm_mem_lock); + + + /* Zero outside the lock */ + memset((void *)address, 0, bytes); + + /* Reserve */ + for (addr = address, sz = bytes; + sz > 0; + addr += PAGE_SIZE, sz -= PAGE_SIZE) { + /* mem_map_reserve(MAP_NR(addr));*/ + } + + return address; +} + +void drm_free_pages(unsigned long address, int order, int area) +{ + unsigned long bytes = PAGE_SIZE << order; + int alloc_count; + int free_count; + unsigned long addr; + unsigned int sz; + + if (!address) { + DRM_MEM_ERROR(area, "Attempt to free address 0\n"); + } else { + /* Unreserve */ + for (addr = address, sz = bytes; + sz > 0; + addr += PAGE_SIZE, sz -= PAGE_SIZE) { + /* mem_map_unreserve(MAP_NR(addr));*/ + } + contigfree((void *) address, bytes, M_DRM); + } + + simple_lock(&drm_mem_lock); + free_count = ++drm_mem_stats[area].free_count; + alloc_count = drm_mem_stats[area].succeed_count; + drm_mem_stats[area].bytes_freed += bytes; + drm_ram_used -= bytes; + simple_unlock(&drm_mem_lock); + if (free_count > alloc_count) { + DRM_MEM_ERROR(area, + "Excess frees: %d frees, %d allocs\n", + free_count, alloc_count); + } +} + +void *drm_ioremap(unsigned long offset, unsigned long size) +{ + void *pt; + + if (!size) { + DRM_MEM_ERROR(DRM_MEM_MAPPINGS, + "Mapping 0 bytes at 0x%08lx\n", offset); + return NULL; + } + + if (!(pt = pmap_mapdev(offset, size))) { + simple_lock(&drm_mem_lock); + ++drm_mem_stats[DRM_MEM_MAPPINGS].fail_count; + simple_unlock(&drm_mem_lock); + return NULL; + } + simple_lock(&drm_mem_lock); + ++drm_mem_stats[DRM_MEM_MAPPINGS].succeed_count; + drm_mem_stats[DRM_MEM_MAPPINGS].bytes_allocated += size; + simple_unlock(&drm_mem_lock); + return pt; +} + +void drm_ioremapfree(void *pt, unsigned long size) +{ + int alloc_count; + int free_count; + + if (!pt) + DRM_MEM_ERROR(DRM_MEM_MAPPINGS, + "Attempt to free NULL pointer\n"); + else + pmap_unmapdev((vm_offset_t) pt, size); + + simple_lock(&drm_mem_lock); + drm_mem_stats[DRM_MEM_MAPPINGS].bytes_freed += size; + free_count = ++drm_mem_stats[DRM_MEM_MAPPINGS].free_count; + alloc_count = drm_mem_stats[DRM_MEM_MAPPINGS].succeed_count; + simple_unlock(&drm_mem_lock); + if (free_count > alloc_count) { + DRM_MEM_ERROR(DRM_MEM_MAPPINGS, + "Excess frees: %d frees, %d allocs\n", + free_count, alloc_count); + } +} + +#ifdef DRM_AGP +void *drm_alloc_agp(int pages, u_int32_t type) +{ + device_t dev = agp_find_device(); + void *handle; + + if (!dev) + return NULL; + + if (!pages) { + DRM_MEM_ERROR(DRM_MEM_TOTALAGP, "Allocating 0 pages\n"); + return NULL; + } + + if ((handle = agp_alloc_memory(dev, type, pages << AGP_PAGE_SHIFT))) { + simple_lock(&drm_mem_lock); + ++drm_mem_stats[DRM_MEM_TOTALAGP].succeed_count; + drm_mem_stats[DRM_MEM_TOTALAGP].bytes_allocated + += pages << PAGE_SHIFT; + simple_unlock(&drm_mem_lock); + return handle; + } + simple_lock(&drm_mem_lock); + ++drm_mem_stats[DRM_MEM_TOTALAGP].fail_count; + simple_unlock(&drm_mem_lock); + return NULL; +} + +int drm_free_agp(void *handle, int pages) +{ + device_t dev = agp_find_device(); + int alloc_count; + int free_count; + int retval = EINVAL; + + if (!dev) + return EINVAL; + + if (!handle) { + DRM_MEM_ERROR(DRM_MEM_TOTALAGP, + "Attempt to free NULL AGP handle\n"); + return retval; + } + + agp_free_memory(dev, handle); + simple_lock(&drm_mem_lock); + free_count = ++drm_mem_stats[DRM_MEM_TOTALAGP].free_count; + alloc_count = drm_mem_stats[DRM_MEM_TOTALAGP].succeed_count; + drm_mem_stats[DRM_MEM_TOTALAGP].bytes_freed + += pages << PAGE_SHIFT; + simple_unlock(&drm_mem_lock); + if (free_count > alloc_count) { + DRM_MEM_ERROR(DRM_MEM_TOTALAGP, + "Excess frees: %d frees, %d allocs\n", + free_count, alloc_count); + } + return 0; +} + +int drm_bind_agp(void *handle, unsigned int start) +{ + device_t dev = agp_find_device(); + int retcode = EINVAL; + struct agp_memory_info info; + + DRM_DEBUG("drm_bind_agp called\n"); + + if (!dev) + return EINVAL; + + if (!handle) { + DRM_MEM_ERROR(DRM_MEM_BOUNDAGP, + "Attempt to bind NULL AGP handle\n"); + return retcode; + } + + if (!(retcode = agp_bind_memory(dev, handle, + start << AGP_PAGE_SHIFT))) { + simple_lock(&drm_mem_lock); + ++drm_mem_stats[DRM_MEM_BOUNDAGP].succeed_count; + agp_memory_info(dev, handle, &info); + drm_mem_stats[DRM_MEM_BOUNDAGP].bytes_allocated + += info.ami_size; + simple_unlock(&drm_mem_lock); + DRM_DEBUG("drm_agp.bind_memory: retcode %d\n", retcode); + return retcode; + } + simple_lock(&drm_mem_lock); + ++drm_mem_stats[DRM_MEM_BOUNDAGP].fail_count; + simple_unlock(&drm_mem_lock); + return retcode; +} + +int drm_unbind_agp(void *handle) +{ + device_t dev = agp_find_device(); + int alloc_count; + int free_count; + int retcode = EINVAL; + struct agp_memory_info info; + + if (!dev) + return EINVAL; + + if (!handle) { + DRM_MEM_ERROR(DRM_MEM_BOUNDAGP, + "Attempt to unbind NULL AGP handle\n"); + return retcode; + } + + + agp_memory_info(dev, handle, &info); + if ((retcode = agp_unbind_memory(dev, handle))) + return retcode; + simple_lock(&drm_mem_lock); + free_count = ++drm_mem_stats[DRM_MEM_BOUNDAGP].free_count; + alloc_count = drm_mem_stats[DRM_MEM_BOUNDAGP].succeed_count; + drm_mem_stats[DRM_MEM_BOUNDAGP].bytes_freed += info.ami_size; + simple_unlock(&drm_mem_lock); + if (free_count > alloc_count) { + DRM_MEM_ERROR(DRM_MEM_BOUNDAGP, + "Excess frees: %d frees, %d allocs\n", + free_count, alloc_count); + } + return retcode; +} +#endif diff --git a/bsd/drm/proc.c b/bsd/drm/proc.c new file mode 100644 index 00000000..12168aa3 --- /dev/null +++ b/bsd/drm/proc.c @@ -0,0 +1,568 @@ +/* proc.c -- /proc support for DRM -*- c -*- + * Created: Mon Jan 11 09:48:47 1999 by faith@precisioninsight.com + * Revised: Fri Aug 20 11:31:48 1999 by faith@precisioninsight.com + * + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * $PI: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/proc.c,v 1.4 1999/08/20 15:36:46 faith Exp $ + * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/proc.c,v 1.1 1999/09/25 14:38:02 dawes Exp $ + * + */ + +#define __NO_VERSION__ +#include "drmP.h" + +static struct proc_dir_entry *drm_root = NULL; +static struct proc_dir_entry *drm_dev_root = NULL; +static char drm_slot_name[64]; + +static int drm_name_info(char *buf, char **start, off_t offset, + int len, int *eof, void *data); +static int drm_vm_info(char *buf, char **start, off_t offset, + int len, int *eof, void *data); +static int drm_clients_info(char *buf, char **start, off_t offset, + int len, int *eof, void *data); +static int drm_queues_info(char *buf, char **start, off_t offset, + int len, int *eof, void *data); +static int drm_bufs_info(char *buf, char **start, off_t offset, + int len, int *eof, void *data); +#if DRM_DEBUG_CODE +static int drm_vma_info(char *buf, char **start, off_t offset, + int len, int *eof, void *data); +#endif +#if DRM_DMA_HISTOGRAM +static int drm_histo_info(char *buf, char **start, off_t offset, + int len, int *eof, void *data); +#endif + +struct drm_proc_list { + const char *name; + int (*f)(char *, char **, off_t, int, int *, void *); +} drm_proc_list[] = { + { "name", drm_name_info }, + { "mem", drm_mem_info }, + { "vm", drm_vm_info }, + { "clients", drm_clients_info }, + { "queues", drm_queues_info }, + { "bufs", drm_bufs_info }, +#if DRM_DEBUG_CODE + { "vma", drm_vma_info }, +#endif +#if DRM_DMA_HISTOGRAM + { "histo", drm_histo_info }, +#endif +}; +#define DRM_PROC_ENTRIES (sizeof(drm_proc_list)/sizeof(drm_proc_list[0])) + +int drm_proc_init(drm_device_t *dev) +{ + struct proc_dir_entry *ent; + int i, j; + + drm_root = create_proc_entry("graphics", S_IFDIR, NULL); + if (!drm_root) { + DRM_ERROR("Cannot create /proc/graphics\n"); + return -1; + } + + /* Instead of doing this search, we should + add some global support for /proc/graphics. */ + for (i = 0; i < 8; i++) { + sprintf(drm_slot_name, "graphics/%d", i); + drm_dev_root = create_proc_entry(drm_slot_name, S_IFDIR, NULL); + if (!drm_dev_root) { + DRM_ERROR("Cannot create /proc/%s\n", drm_slot_name); + remove_proc_entry("graphics", NULL); + } + if (drm_dev_root->nlink == 2) break; + drm_dev_root = NULL; + } + if (!drm_dev_root) { + DRM_ERROR("Cannot find slot in /proc/graphics\n"); + return -1; + } + + for (i = 0; i < DRM_PROC_ENTRIES; i++) { + ent = create_proc_entry(drm_proc_list[i].name, + S_IFREG|S_IRUGO, drm_dev_root); + if (!ent) { + DRM_ERROR("Cannot create /proc/%s/%s\n", + drm_slot_name, drm_proc_list[i].name); + for (j = 0; j < i; j++) + remove_proc_entry(drm_proc_list[i].name, + drm_dev_root); + remove_proc_entry(drm_slot_name, NULL); + remove_proc_entry("graphics", NULL); + return -1; + } + ent->read_proc = drm_proc_list[i].f; + ent->data = dev; + } + + return 0; +} + + +int drm_proc_cleanup(void) +{ + int i; + + if (drm_root) { + if (drm_dev_root) { + for (i = 0; i < DRM_PROC_ENTRIES; i++) { + remove_proc_entry(drm_proc_list[i].name, + drm_dev_root); + } + remove_proc_entry(drm_slot_name, NULL); + } + remove_proc_entry("graphics", NULL); + remove_proc_entry(DRM_NAME, NULL); + } + drm_root = drm_dev_root = NULL; + return 0; +} + +static int drm_name_info(char *buf, char **start, off_t offset, int len, + int *eof, void *data) +{ + drm_device_t *dev = (drm_device_t *)data; + + if (offset > 0) return 0; /* no partial requests */ + len = 0; + *eof = 1; + + if (dev->unique) { + DRM_PROC_PRINT("%s 0x%x %s\n", + dev->name, dev->device, dev->unique); + } else { + DRM_PROC_PRINT("%s 0x%x\n", dev->name, dev->device); + } + return len; +} + +static int _drm_vm_info(char *buf, char **start, off_t offset, int len, + int *eof, void *data) +{ + drm_device_t *dev = (drm_device_t *)data; + drm_map_t *map; + const char *types[] = { "FB", "REG", "SHM" }; + const char *type; + int i; + + if (offset > 0) return 0; /* no partial requests */ + len = 0; + *eof = 1; + DRM_PROC_PRINT("slot offset size type flags " + "address mtrr\n\n"); + for (i = 0; i < dev->map_count; i++) { + map = dev->maplist[i]; + if (map->type < 0 || map->type > 2) type = "??"; + else type = types[map->type]; + DRM_PROC_PRINT("%4d 0x%08lx 0x%08lx %4.4s 0x%02x 0x%08lx ", + i, + map->offset, + map->size, + type, + map->flags, + (unsigned long)map->handle); + if (map->mtrr < 0) { + DRM_PROC_PRINT("none\n"); + } else { + DRM_PROC_PRINT("%4d\n", map->mtrr); + } + } + + return len; +} + +static int drm_vm_info(char *buf, char **start, off_t offset, int len, + int *eof, void *data) +{ + drm_device_t *dev = (drm_device_t *)data; + int ret; + + down(&dev->struct_sem); + ret = _drm_vm_info(buf, start, offset, len, eof, data); + up(&dev->struct_sem); + return ret; +} + + +static int _drm_queues_info(char *buf, char **start, off_t offset, int len, + int *eof, void *data) +{ + drm_device_t *dev = (drm_device_t *)data; + int i; + drm_queue_t *q; + + if (offset > 0) return 0; /* no partial requests */ + len = 0; + *eof = 1; + DRM_PROC_PRINT(" ctx/flags use fin" + " blk/rw/rwf wait flushed queued" + " locks\n\n"); + for (i = 0; i < dev->queue_count; i++) { + q = dev->queuelist[i]; + atomic_inc(&q->use_count); + DRM_PROC_PRINT_RET(atomic_dec(&q->use_count), + "%5d/0x%03x %5d %5d" + " %5d/%c%c/%c%c%c %5d %10d %10d %10d\n", + i, + q->flags, + atomic_read(&q->use_count), + atomic_read(&q->finalization), + atomic_read(&q->block_count), + atomic_read(&q->block_read) ? 'r' : '-', + atomic_read(&q->block_write) ? 'w' : '-', + waitqueue_active(&q->read_queue) ? 'r':'-', + waitqueue_active(&q->write_queue) ? 'w':'-', + waitqueue_active(&q->flush_queue) ? 'f':'-', + DRM_BUFCOUNT(&q->waitlist), + atomic_read(&q->total_flushed), + atomic_read(&q->total_queued), + atomic_read(&q->total_locks)); + atomic_dec(&q->use_count); + } + + return len; +} + +static int drm_queues_info(char *buf, char **start, off_t offset, int len, + int *eof, void *data) +{ + drm_device_t *dev = (drm_device_t *)data; + int ret; + + down(&dev->struct_sem); + ret = _drm_queues_info(buf, start, offset, len, eof, data); + up(&dev->struct_sem); + return ret; +} + +/* drm_bufs_info is called whenever a process reads + /dev/drm/<dev>/bufs. */ + +static int _drm_bufs_info(char *buf, char **start, off_t offset, int len, + int *eof, void *data) +{ + drm_device_t *dev = (drm_device_t *)data; + drm_device_dma_t *dma = dev->dma; + int i; + + if (!dma) return 0; + if (offset > 0) return 0; /* no partial requests */ + len = 0; + *eof = 1; + DRM_PROC_PRINT(" o size count free segs pages kB\n\n"); + for (i = 0; i <= DRM_MAX_ORDER; i++) { + if (dma->bufs[i].buf_count) + DRM_PROC_PRINT("%2d %8d %5d %5d %5d %5d %5ld\n", + i, + dma->bufs[i].buf_size, + dma->bufs[i].buf_count, + atomic_read(&dma->bufs[i] + .freelist.count), + dma->bufs[i].seg_count, + dma->bufs[i].seg_count + *(1 << dma->bufs[i].page_order), + (dma->bufs[i].seg_count + * (1 << dma->bufs[i].page_order)) + * PAGE_SIZE / 1024); + } + DRM_PROC_PRINT("\n"); + for (i = 0; i < dma->buf_count; i++) { + if (i && !(i%32)) DRM_PROC_PRINT("\n"); + DRM_PROC_PRINT(" %d", dma->buflist[i]->list); + } + DRM_PROC_PRINT("\n"); + + return len; +} + +static int drm_bufs_info(char *buf, char **start, off_t offset, int len, + int *eof, void *data) +{ + drm_device_t *dev = (drm_device_t *)data; + int ret; + + down(&dev->struct_sem); + ret = _drm_bufs_info(buf, start, offset, len, eof, data); + up(&dev->struct_sem); + return ret; +} + + +static int _drm_clients_info(char *buf, char **start, off_t offset, int len, + int *eof, void *data) +{ + drm_device_t *dev = (drm_device_t *)data; + drm_file_t *priv; + + if (offset > 0) return 0; /* no partial requests */ + len = 0; + *eof = 1; + DRM_PROC_PRINT("a dev pid uid magic ioctls\n\n"); + for (priv = dev->file_first; priv; priv = priv->next) { + DRM_PROC_PRINT("%c %3d %5d %5d %10u %10lu\n", + priv->authenticated ? 'y' : 'n', + priv->minor, + priv->pid, + priv->uid, + priv->magic, + priv->ioctl_count); + } + + return len; +} + +static int drm_clients_info(char *buf, char **start, off_t offset, int len, + int *eof, void *data) +{ + drm_device_t *dev = (drm_device_t *)data; + int ret; + + down(&dev->struct_sem); + ret = _drm_clients_info(buf, start, offset, len, eof, data); + up(&dev->struct_sem); + return ret; +} + +#if DRM_DEBUG_CODE + +static int _drm_vma_info(char *buf, char **start, off_t offset, int len, + int *eof, void *data) +{ + drm_device_t *dev = (drm_device_t *)data; + drm_vma_entry_t *pt; + pgd_t *pgd; + pmd_t *pmd; + pte_t *pte; + unsigned long i; + struct vm_area_struct *vma; + unsigned long address; +#if defined(__i386__) + unsigned int pgprot; +#endif + + if (offset > 0) return 0; /* no partial requests */ + len = 0; + *eof = 1; + DRM_PROC_PRINT("vma use count: %d, high_memory = %p, 0x%08lx\n", + atomic_read(&dev->vma_count), + high_memory, virt_to_phys(high_memory)); + for (pt = dev->vmalist; pt; pt = pt->next) { + if (!(vma = pt->vma)) continue; + DRM_PROC_PRINT("\n%5d 0x%08lx-0x%08lx %c%c%c%c%c%c 0x%08lx", + pt->pid, + vma->vm_start, + vma->vm_end, + vma->vm_flags & VM_READ ? 'r' : '-', + vma->vm_flags & VM_WRITE ? 'w' : '-', + vma->vm_flags & VM_EXEC ? 'x' : '-', + vma->vm_flags & VM_MAYSHARE ? 's' : 'p', + vma->vm_flags & VM_LOCKED ? 'l' : '-', + vma->vm_flags & VM_IO ? 'i' : '-', + vma->vm_offset ); +#if defined(__i386__) + pgprot = pgprot_val(vma->vm_page_prot); + DRM_PROC_PRINT(" %c%c%c%c%c%c%c%c%c", + pgprot & _PAGE_PRESENT ? 'p' : '-', + pgprot & _PAGE_RW ? 'w' : 'r', + pgprot & _PAGE_USER ? 'u' : 's', + pgprot & _PAGE_PWT ? 't' : 'b', + pgprot & _PAGE_PCD ? 'u' : 'c', + pgprot & _PAGE_ACCESSED ? 'a' : '-', + pgprot & _PAGE_DIRTY ? 'd' : '-', + pgprot & _PAGE_4M ? 'm' : 'k', + pgprot & _PAGE_GLOBAL ? 'g' : 'l' ); +#endif + DRM_PROC_PRINT("\n"); + for (i = vma->vm_start; i < vma->vm_end; i += PAGE_SIZE) { + pgd = pgd_offset(vma->vm_mm, i); + pmd = pmd_offset(pgd, i); + pte = pte_offset(pmd, i); + if (pte_present(*pte)) { + address = __pa(pte_page(*pte)) + + (i & (PAGE_SIZE-1)); + DRM_PROC_PRINT(" 0x%08lx -> 0x%08lx" + " %c%c%c%c%c\n", + i, + address, + pte_read(*pte) ? 'r' : '-', + pte_write(*pte) ? 'w' : '-', + pte_exec(*pte) ? 'x' : '-', + pte_dirty(*pte) ? 'd' : '-', + pte_young(*pte) ? 'a' : '-' ); + } else { + DRM_PROC_PRINT(" 0x%08lx\n", i); + } + } + } + + return len; +} + +static int drm_vma_info(char *buf, char **start, off_t offset, int len, + int *eof, void *data) +{ + drm_device_t *dev = (drm_device_t *)data; + int ret; + + down(&dev->struct_sem); + ret = _drm_vma_info(buf, start, offset, len, eof, data); + up(&dev->struct_sem); + return ret; +} +#endif + + +#if DRM_DMA_HISTOGRAM +static int _drm_histo_info(char *buf, char **start, off_t offset, int len, + int *eof, void *data) +{ + drm_device_t *dev = (drm_device_t *)data; + drm_device_dma_t *dma = dev->dma; + int i; + unsigned long slot_value = DRM_DMA_HISTOGRAM_INITIAL; + unsigned long prev_value = 0; + drm_buf_t *buffer; + + if (offset > 0) return 0; /* no partial requests */ + len = 0; + *eof = 1; + + DRM_PROC_PRINT("general statistics:\n"); + DRM_PROC_PRINT("total %10u\n", atomic_read(&dev->histo.total)); + DRM_PROC_PRINT("open %10u\n", atomic_read(&dev->total_open)); + DRM_PROC_PRINT("close %10u\n", atomic_read(&dev->total_close)); + DRM_PROC_PRINT("ioctl %10u\n", atomic_read(&dev->total_ioctl)); + DRM_PROC_PRINT("irq %10u\n", atomic_read(&dev->total_irq)); + DRM_PROC_PRINT("ctx %10u\n", atomic_read(&dev->total_ctx)); + + DRM_PROC_PRINT("\nlock statistics:\n"); + DRM_PROC_PRINT("locks %10u\n", atomic_read(&dev->total_locks)); + DRM_PROC_PRINT("unlocks %10u\n", atomic_read(&dev->total_unlocks)); + DRM_PROC_PRINT("contends %10u\n", atomic_read(&dev->total_contends)); + DRM_PROC_PRINT("sleeps %10u\n", atomic_read(&dev->total_sleeps)); + + + if (dma) { + DRM_PROC_PRINT("\ndma statistics:\n"); + DRM_PROC_PRINT("prio %10u\n", + atomic_read(&dma->total_prio)); + DRM_PROC_PRINT("bytes %10u\n", + atomic_read(&dma->total_bytes)); + DRM_PROC_PRINT("dmas %10u\n", + atomic_read(&dma->total_dmas)); + DRM_PROC_PRINT("missed:\n"); + DRM_PROC_PRINT(" dma %10u\n", + atomic_read(&dma->total_missed_dma)); + DRM_PROC_PRINT(" lock %10u\n", + atomic_read(&dma->total_missed_lock)); + DRM_PROC_PRINT(" free %10u\n", + atomic_read(&dma->total_missed_free)); + DRM_PROC_PRINT(" sched %10u\n", + atomic_read(&dma->total_missed_sched)); + DRM_PROC_PRINT("tried %10u\n", + atomic_read(&dma->total_tried)); + DRM_PROC_PRINT("hit %10u\n", + atomic_read(&dma->total_hit)); + DRM_PROC_PRINT("lost %10u\n", + atomic_read(&dma->total_lost)); + + buffer = dma->next_buffer; + if (buffer) { + DRM_PROC_PRINT("next_buffer %7d\n", buffer->idx); + } else { + DRM_PROC_PRINT("next_buffer none\n"); + } + buffer = dma->this_buffer; + if (buffer) { + DRM_PROC_PRINT("this_buffer %7d\n", buffer->idx); + } else { + DRM_PROC_PRINT("this_buffer none\n"); + } + } + + + DRM_PROC_PRINT("\nvalues:\n"); + if (dev->lock.hw_lock) { + DRM_PROC_PRINT("lock 0x%08x\n", + dev->lock.hw_lock->lock); + } else { + DRM_PROC_PRINT("lock none\n"); + } + DRM_PROC_PRINT("context_flag 0x%08x\n", dev->context_flag); + DRM_PROC_PRINT("interrupt_flag 0x%08x\n", dev->interrupt_flag); + DRM_PROC_PRINT("dma_flag 0x%08x\n", dev->dma_flag); + + DRM_PROC_PRINT("queue_count %10d\n", dev->queue_count); + DRM_PROC_PRINT("last_context %10d\n", dev->last_context); + DRM_PROC_PRINT("last_switch %10lu\n", dev->last_switch); + DRM_PROC_PRINT("last_checked %10d\n", dev->last_checked); + + + DRM_PROC_PRINT("\n q2d d2c c2f" + " q2c q2f dma sch" + " ctx lacq lhld\n\n"); + for (i = 0; i < DRM_DMA_HISTOGRAM_SLOTS; i++) { + DRM_PROC_PRINT("%s %10lu %10u %10u %10u %10u %10u" + " %10u %10u %10u %10u %10u\n", + i == DRM_DMA_HISTOGRAM_SLOTS - 1 ? ">=" : "< ", + i == DRM_DMA_HISTOGRAM_SLOTS - 1 + ? prev_value : slot_value , + + atomic_read(&dev->histo + .queued_to_dispatched[i]), + atomic_read(&dev->histo + .dispatched_to_completed[i]), + atomic_read(&dev->histo + .completed_to_freed[i]), + + atomic_read(&dev->histo + .queued_to_completed[i]), + atomic_read(&dev->histo + .queued_to_freed[i]), + atomic_read(&dev->histo.dma[i]), + atomic_read(&dev->histo.schedule[i]), + atomic_read(&dev->histo.ctx[i]), + atomic_read(&dev->histo.lacq[i]), + atomic_read(&dev->histo.lhld[i])); + prev_value = slot_value; + slot_value = DRM_DMA_HISTOGRAM_NEXT(slot_value); + } + return len; +} + +static int drm_histo_info(char *buf, char **start, off_t offset, int len, + int *eof, void *data) +{ + drm_device_t *dev = (drm_device_t *)data; + int ret; + + down(&dev->struct_sem); + ret = _drm_histo_info(buf, start, offset, len, eof, data); + up(&dev->struct_sem); + return ret; +} +#endif diff --git a/bsd/drm/sysctl.c b/bsd/drm/sysctl.c new file mode 100644 index 00000000..7c736abf --- /dev/null +++ b/bsd/drm/sysctl.c @@ -0,0 +1,554 @@ +/* proc.c -- /proc support for DRM -*- c -*- + * Created: Mon Jan 11 09:48:47 1999 by faith@precisioninsight.com + * Revised: Fri Aug 20 11:31:48 1999 by faith@precisioninsight.com + * + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * $PI$ + * $XFree86$ + * + */ + +#define __NO_VERSION__ +#include "drmP.h" +#include <sys/sysctl.h> + +SYSCTL_NODE(_hw, OID_AUTO, dri, CTLFLAG_RW, 0, "DRI Graphics"); + +static int drm_name_info SYSCTL_HANDLER_ARGS; +static int drm_vm_info SYSCTL_HANDLER_ARGS; +static int drm_clients_info SYSCTL_HANDLER_ARGS; +static int drm_queues_info SYSCTL_HANDLER_ARGS; +static int drm_bufs_info SYSCTL_HANDLER_ARGS; +#if DRM_DEBUG_CODExx +static int drm_vma_info SYSCTL_HANDLER_ARGS; +#endif +#if DRM_DMA_HISTOGRAM +static int drm_histo_info SYSCTL_HANDLER_ARGS; +#endif + +struct drm_sysctl_list { + const char *name; + int (*f) SYSCTL_HANDLER_ARGS; +} drm_sysctl_list[] = { + { "name", drm_name_info }, + { "mem", drm_mem_info }, + { "vm", drm_vm_info }, + { "clients", drm_clients_info }, + { "queues", drm_queues_info }, + { "bufs", drm_bufs_info }, +#if DRM_DEBUG_CODExx + { "vma", drm_vma_info }, +#endif +#if DRM_DMA_HISTOGRAM + { "histo", drm_histo_info }, +#endif +}; +#define DRM_SYSCTL_ENTRIES (sizeof(drm_sysctl_list)/sizeof(drm_sysctl_list[0])) + +struct drm_sysctl_info { + struct sysctl_oid oids[DRM_SYSCTL_ENTRIES + 1]; + struct sysctl_oid_list list; + char name[2]; +}; + +int drm_sysctl_init(drm_device_t *dev) +{ + struct drm_sysctl_info *info; + struct sysctl_oid *oid; + struct sysctl_oid *top; + int i; + + /* Find the next free slot under hw.graphics */ + i = 0; + SLIST_FOREACH(oid, &sysctl__hw_dri_children, oid_link) { + if (i <= oid->oid_arg2) + i = oid->oid_arg2 + 1; + } + + info = drm_alloc(sizeof *info, DRM_MEM_DRIVER); + dev->sysctl = info; + + /* Construct the node under hw.graphics */ + info->name[0] = '0' + i; + info->name[1] = 0; + oid = &info->oids[DRM_SYSCTL_ENTRIES]; + bzero(oid, sizeof(*oid)); + oid->oid_parent = &sysctl__hw_dri_children; + oid->oid_number = OID_AUTO; + oid->oid_kind = CTLTYPE_NODE | CTLFLAG_RW; + oid->oid_arg1 = &info->list; + oid->oid_arg2 = i; + oid->oid_name = info->name; + oid->oid_handler = 0; + oid->oid_fmt = "N"; + SLIST_INIT(&info->list); + sysctl_register_oid(oid); + top = oid; + + for (i = 0; i < DRM_SYSCTL_ENTRIES; i++) { + oid = &info->oids[i]; + bzero(oid, sizeof(*oid)); + oid->oid_parent = top->oid_arg1; + oid->oid_number = OID_AUTO; + oid->oid_kind = CTLTYPE_INT | CTLFLAG_RD; + oid->oid_arg1 = dev; + oid->oid_arg2 = 0; + oid->oid_name = drm_sysctl_list[i].name; + oid->oid_handler = drm_sysctl_list[i].f; + oid->oid_fmt = "A"; + sysctl_register_oid(oid); + } + + return 0; +} + +int drm_sysctl_cleanup(drm_device_t *dev) +{ + int i; + + DRM_DEBUG("dev->sysctl=%p\n", dev->sysctl); + for (i = 0; i < DRM_SYSCTL_ENTRIES + 1; i++) + sysctl_unregister_oid(&dev->sysctl->oids[i]); + + drm_free(dev->sysctl, sizeof *dev->sysctl, DRM_MEM_DRIVER); + dev->sysctl = NULL; + + return 0; +} + +static int drm_name_info SYSCTL_HANDLER_ARGS +{ + drm_device_t *dev = arg1; + char buf[128]; + int error; + + if (dev->unique) { + DRM_SYSCTL_PRINT("%s 0x%x %s\n", + dev->name, dev2udev(dev->devnode), dev->unique); + } else { + DRM_SYSCTL_PRINT("%s 0x%x\n", dev->name, dev2udev(dev->devnode)); + } + + SYSCTL_OUT(req, "", 1); + + return 0; +} + +static int _drm_vm_info SYSCTL_HANDLER_ARGS +{ + drm_device_t *dev = arg1; + drm_map_t *map; + const char *types[] = { "FB", "REG", "SHM" }; + const char *type; + int i; + char buf[128]; + int error; + + DRM_SYSCTL_PRINT("slot offset size type flags " + "address mtrr\n\n"); + error = SYSCTL_OUT(req, buf, strlen(buf)); + if (error) return error; + + for (i = 0; i < dev->map_count; i++) { + map = dev->maplist[i]; + if (map->type < 0 || map->type > 2) type = "??"; + else type = types[map->type]; + DRM_SYSCTL_PRINT("%4d 0x%08lx 0x%08lx %4.4s 0x%02x 0x%08lx ", + i, + map->offset, + map->size, + type, + map->flags, + (unsigned long)map->handle); + if (map->mtrr < 0) { + DRM_SYSCTL_PRINT("none\n"); + } else { + DRM_SYSCTL_PRINT("%4d\n", map->mtrr); + } + } + SYSCTL_OUT(req, "", 1); + + return 0; +} + +static int drm_vm_info SYSCTL_HANDLER_ARGS +{ + drm_device_t *dev = arg1; + int ret; + + lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc); + ret = _drm_vm_info(oidp, arg1, arg2, req); + lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc); + + return ret; +} + + +static int _drm_queues_info SYSCTL_HANDLER_ARGS +{ + drm_device_t *dev = arg1; + int i; + drm_queue_t *q; + char buf[128]; + int error; + + DRM_SYSCTL_PRINT(" ctx/flags use fin" + " blk/rw/rwf wait flushed queued" + " locks\n\n"); + for (i = 0; i < dev->queue_count; i++) { + q = dev->queuelist[i]; + atomic_inc(&q->use_count); + DRM_SYSCTL_PRINT_RET(atomic_dec(&q->use_count), + "%5d/0x%03x %5d %5d" + " %5d/%c%c/%c%c%c %5d %10d %10d %10d\n", + i, + q->flags, + atomic_read(&q->use_count), + atomic_read(&q->finalization), + atomic_read(&q->block_count), + atomic_read(&q->block_read) ? 'r' : '-', + atomic_read(&q->block_write) ? 'w' : '-', + q->read_queue ? 'r':'-', + q->write_queue ? 'w':'-', + q->flush_queue ? 'f':'-', + DRM_BUFCOUNT(&q->waitlist), + atomic_read(&q->total_flushed), + atomic_read(&q->total_queued), + atomic_read(&q->total_locks)); + atomic_dec(&q->use_count); + } + + SYSCTL_OUT(req, "", 1); + return 0; +} + +static int drm_queues_info SYSCTL_HANDLER_ARGS +{ + drm_device_t *dev = arg1; + int ret; + + lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc); + ret = _drm_queues_info(oidp, arg1, arg2, req); + lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc); + return ret; +} + +/* drm_bufs_info is called whenever a process reads + hw.dri.0.bufs. */ + +static int _drm_bufs_info SYSCTL_HANDLER_ARGS +{ + drm_device_t *dev = arg1; + drm_device_dma_t *dma = dev->dma; + int i; + char buf[128]; + int error; + + if (!dma) return 0; + DRM_SYSCTL_PRINT(" o size count free segs pages kB\n\n"); + for (i = 0; i <= DRM_MAX_ORDER; i++) { + if (dma->bufs[i].buf_count) + DRM_SYSCTL_PRINT("%2d %8d %5d %5d %5d %5d %5d\n", + i, + dma->bufs[i].buf_size, + dma->bufs[i].buf_count, + atomic_read(&dma->bufs[i] + .freelist.count), + dma->bufs[i].seg_count, + dma->bufs[i].seg_count + *(1 << dma->bufs[i].page_order), + (dma->bufs[i].seg_count + * (1 << dma->bufs[i].page_order)) + * PAGE_SIZE / 1024); + } + DRM_SYSCTL_PRINT("\n"); + for (i = 0; i < dma->buf_count; i++) { + if (i && !(i%32)) DRM_SYSCTL_PRINT("\n"); + DRM_SYSCTL_PRINT(" %d", dma->buflist[i]->list); + } + DRM_SYSCTL_PRINT("\n"); + + SYSCTL_OUT(req, "", 1); + return 0; +} + +static int drm_bufs_info SYSCTL_HANDLER_ARGS +{ + drm_device_t *dev = arg1; + int ret; + + lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc); + ret = _drm_bufs_info(oidp, arg1, arg2, req); + lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc); + return ret; +} + + +static int _drm_clients_info SYSCTL_HANDLER_ARGS +{ + drm_device_t *dev = arg1; + drm_file_t *priv; + char buf[128]; + int error; + + DRM_SYSCTL_PRINT("a dev pid uid magic ioctls\n\n"); + TAILQ_FOREACH(priv, &dev->files, link) { + DRM_SYSCTL_PRINT("%c %3d %5d %5d %10u %10lu\n", + priv->authenticated ? 'y' : 'n', + priv->minor, + priv->pid, + priv->uid, + priv->magic, + priv->ioctl_count); + } + + SYSCTL_OUT(req, "", 1); + return 0; +} + +static int drm_clients_info SYSCTL_HANDLER_ARGS +{ + drm_device_t *dev = arg1; + int ret; + + lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc); + ret = _drm_clients_info(oidp, arg1, arg2, req); + lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc); + return ret; +} + +#if DRM_DEBUG_CODExx + +static int _drm_vma_info SYSCTL_HANDLER_ARGS +{ + drm_device_t *dev = arg1; + drm_vma_entry_t *pt; + pgd_t *pgd; + pmd_t *pmd; + pte_t *pte; + unsigned long i; + struct vm_area_struct *vma; + unsigned long address; +#if defined(__i386__) + unsigned int pgprot; +#endif + char buf[128]; + int error; + + DRM_SYSCTL_PRINT("vma use count: %d, high_memory = %p, 0x%08lx\n", + atomic_read(&dev->vma_count), + high_memory, virt_to_phys(high_memory)); + for (pt = dev->vmalist; pt; pt = pt->next) { + if (!(vma = pt->vma)) continue; + DRM_SYSCTL_PRINT("\n%5d 0x%08lx-0x%08lx %c%c%c%c%c%c 0x%08lx", + pt->pid, + vma->vm_start, + vma->vm_end, + vma->vm_flags & VM_READ ? 'r' : '-', + vma->vm_flags & VM_WRITE ? 'w' : '-', + vma->vm_flags & VM_EXEC ? 'x' : '-', + vma->vm_flags & VM_MAYSHARE ? 's' : 'p', + vma->vm_flags & VM_LOCKED ? 'l' : '-', + vma->vm_flags & VM_IO ? 'i' : '-', + vma->vm_offset ); +#if defined(__i386__) + pgprot = pgprot_val(vma->vm_page_prot); + DRM_SYSCTL_PRINT(" %c%c%c%c%c%c%c%c%c", + pgprot & _PAGE_PRESENT ? 'p' : '-', + pgprot & _PAGE_RW ? 'w' : 'r', + pgprot & _PAGE_USER ? 'u' : 's', + pgprot & _PAGE_PWT ? 't' : 'b', + pgprot & _PAGE_PCD ? 'u' : 'c', + pgprot & _PAGE_ACCESSED ? 'a' : '-', + pgprot & _PAGE_DIRTY ? 'd' : '-', + pgprot & _PAGE_4M ? 'm' : 'k', + pgprot & _PAGE_GLOBAL ? 'g' : 'l' ); +#endif + DRM_SYSCTL_PRINT("\n"); + for (i = vma->vm_start; i < vma->vm_end; i += PAGE_SIZE) { + pgd = pgd_offset(vma->vm_mm, i); + pmd = pmd_offset(pgd, i); + pte = pte_offset(pmd, i); + if (pte_present(*pte)) { + address = __pa(pte_page(*pte)) + + (i & (PAGE_SIZE-1)); + DRM_SYSCTL_PRINT(" 0x%08lx -> 0x%08lx" + " %c%c%c%c%c\n", + i, + address, + pte_read(*pte) ? 'r' : '-', + pte_write(*pte) ? 'w' : '-', + pte_exec(*pte) ? 'x' : '-', + pte_dirty(*pte) ? 'd' : '-', + pte_young(*pte) ? 'a' : '-' ); + } else { + DRM_SYSCTL_PRINT(" 0x%08lx\n", i); + } + } + } + + SYSCTL_OUT(req, "", 1); + return 0; +} + +static int drm_vma_info SYSCTL_HANDLER_ARGS +{ + drm_device_t *dev = arg1; + int ret; + + lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc); + ret = _drm_vma_info(oidp, arg1, arg2, req); + lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc); + return ret; +} +#endif + + +#if DRM_DMA_HISTOGRAM +static int _drm_histo_info SYSCTL_HANDLER_ARGS +{ + drm_device_t *dev = arg1; + drm_device_dma_t *dma = dev->dma; + int i; + unsigned long slot_value = DRM_DMA_HISTOGRAM_INITIAL; + unsigned long prev_value = 0; + drm_buf_t *buffer; + char buf[128]; + int error; + + DRM_SYSCTL_PRINT("general statistics:\n"); + DRM_SYSCTL_PRINT("total %10u\n", atomic_read(&dev->histo.total)); + DRM_SYSCTL_PRINT("open %10u\n", atomic_read(&dev->total_open)); + DRM_SYSCTL_PRINT("close %10u\n", atomic_read(&dev->total_close)); + DRM_SYSCTL_PRINT("ioctl %10u\n", atomic_read(&dev->total_ioctl)); + DRM_SYSCTL_PRINT("irq %10u\n", atomic_read(&dev->total_irq)); + DRM_SYSCTL_PRINT("ctx %10u\n", atomic_read(&dev->total_ctx)); + + DRM_SYSCTL_PRINT("\nlock statistics:\n"); + DRM_SYSCTL_PRINT("locks %10u\n", atomic_read(&dev->total_locks)); + DRM_SYSCTL_PRINT("unlocks %10u\n", atomic_read(&dev->total_unlocks)); + DRM_SYSCTL_PRINT("contends %10u\n", atomic_read(&dev->total_contends)); + DRM_SYSCTL_PRINT("sleeps %10u\n", atomic_read(&dev->total_sleeps)); + + + if (dma) { + DRM_SYSCTL_PRINT("\ndma statistics:\n"); + DRM_SYSCTL_PRINT("prio %10u\n", + atomic_read(&dma->total_prio)); + DRM_SYSCTL_PRINT("bytes %10u\n", + atomic_read(&dma->total_bytes)); + DRM_SYSCTL_PRINT("dmas %10u\n", + atomic_read(&dma->total_dmas)); + DRM_SYSCTL_PRINT("missed:\n"); + DRM_SYSCTL_PRINT(" dma %10u\n", + atomic_read(&dma->total_missed_dma)); + DRM_SYSCTL_PRINT(" lock %10u\n", + atomic_read(&dma->total_missed_lock)); + DRM_SYSCTL_PRINT(" free %10u\n", + atomic_read(&dma->total_missed_free)); + DRM_SYSCTL_PRINT(" sched %10u\n", + atomic_read(&dma->total_missed_sched)); + DRM_SYSCTL_PRINT("tried %10u\n", + atomic_read(&dma->total_tried)); + DRM_SYSCTL_PRINT("hit %10u\n", + atomic_read(&dma->total_hit)); + DRM_SYSCTL_PRINT("lost %10u\n", + atomic_read(&dma->total_lost)); + + buffer = dma->next_buffer; + if (buffer) { + DRM_SYSCTL_PRINT("next_buffer %7d\n", buffer->idx); + } else { + DRM_SYSCTL_PRINT("next_buffer none\n"); + } + buffer = dma->this_buffer; + if (buffer) { + DRM_SYSCTL_PRINT("this_buffer %7d\n", buffer->idx); + } else { + DRM_SYSCTL_PRINT("this_buffer none\n"); + } + } + + + DRM_SYSCTL_PRINT("\nvalues:\n"); + if (dev->lock.hw_lock) { + DRM_SYSCTL_PRINT("lock 0x%08x\n", + dev->lock.hw_lock->lock); + } else { + DRM_SYSCTL_PRINT("lock none\n"); + } + DRM_SYSCTL_PRINT("context_flag 0x%08x\n", dev->context_flag); + DRM_SYSCTL_PRINT("interrupt_flag 0x%08x\n", dev->interrupt_flag); + DRM_SYSCTL_PRINT("dma_flag 0x%08x\n", dev->dma_flag); + + DRM_SYSCTL_PRINT("queue_count %10d\n", dev->queue_count); + DRM_SYSCTL_PRINT("last_context %10d\n", dev->last_context); + DRM_SYSCTL_PRINT("last_switch %10u\n", dev->last_switch); + DRM_SYSCTL_PRINT("last_checked %10d\n", dev->last_checked); + + + DRM_SYSCTL_PRINT("\n q2d d2c c2f" + " q2c q2f dma sch" + " ctx lacq lhld\n\n"); + for (i = 0; i < DRM_DMA_HISTOGRAM_SLOTS; i++) { + DRM_SYSCTL_PRINT("%s %10lu %10u %10u %10u %10u %10u" + " %10u %10u %10u %10u %10u\n", + i == DRM_DMA_HISTOGRAM_SLOTS - 1 ? ">=" : "< ", + i == DRM_DMA_HISTOGRAM_SLOTS - 1 + ? prev_value : slot_value , + + atomic_read(&dev->histo + .queued_to_dispatched[i]), + atomic_read(&dev->histo + .dispatched_to_completed[i]), + atomic_read(&dev->histo + .completed_to_freed[i]), + + atomic_read(&dev->histo + .queued_to_completed[i]), + atomic_read(&dev->histo + .queued_to_freed[i]), + atomic_read(&dev->histo.dma[i]), + atomic_read(&dev->histo.schedule[i]), + atomic_read(&dev->histo.ctx[i]), + atomic_read(&dev->histo.lacq[i]), + atomic_read(&dev->histo.lhld[i])); + prev_value = slot_value; + slot_value = DRM_DMA_HISTOGRAM_NEXT(slot_value); + } + SYSCTL_OUT(req, "", 1); + return 0; +} + +static int drm_histo_info SYSCTL_HANDLER_ARGS +{ + drm_device_t *dev = arg1; + int ret; + + lockmgr(&dev->dev_lock, LK_EXCLUSIVE, 0, curproc); + ret = _drm_histo_info(oidp, arg1, arg2, req); + lockmgr(&dev->dev_lock, LK_RELEASE, 0, curproc); + return ret; +} +#endif diff --git a/bsd/drm/vm.c b/bsd/drm/vm.c new file mode 100644 index 00000000..9c457fca --- /dev/null +++ b/bsd/drm/vm.c @@ -0,0 +1,104 @@ +/* vm.c -- Memory mapping for DRM -*- c -*- + * Created: Mon Jan 4 08:58:31 1999 by faith@precisioninsight.com + * Revised: Fri Aug 20 22:48:11 1999 by faith@precisioninsight.com + * + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * $PI: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/vm.c,v 1.7 1999/08/21 02:48:34 faith Exp $ + * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/vm.c,v 1.1 1999/09/25 14:38:02 dawes Exp $ + * + */ + +#define __NO_VERSION__ +#include "drmP.h" + +#include <vm/vm.h> +#include <vm/pmap.h> + +static int drm_dma_mmap(dev_t kdev, vm_offset_t offset, int prot) +{ + drm_device_t *dev = kdev->si_drv1; + drm_device_dma_t *dma = dev->dma; + unsigned long physical; + unsigned long page; + + if (!dma) return -1; /* Error */ + if (!dma->pagelist) return -1; /* Nothing allocated */ + + page = offset >> PAGE_SHIFT; + physical = dma->pagelist[page]; + + DRM_DEBUG("0x%08x (page %lu) => 0x%08lx\n", offset, page, physical); + return atop(physical); +} + +int drm_mmap(dev_t kdev, vm_offset_t offset, int prot) +{ + drm_device_t *dev = kdev->si_drv1; + drm_map_t *map = NULL; + int i; + + /* DRM_DEBUG("offset = 0x%x\n", offset); */ + + if (dev->dma + && offset >= 0 + && offset < ptoa(dev->dma->page_count)) + return drm_dma_mmap(kdev, offset, prot); + + /* A sequential search of a linked list is + fine here because: 1) there will only be + about 5-10 entries in the list and, 2) a + DRI client only has to do this mapping + once, so it doesn't have to be optimized + for performance, even if the list was a + bit longer. */ + for (i = 0; i < dev->map_count; i++) { + map = dev->maplist[i]; + /* DRM_DEBUG("considering 0x%x..0x%x\n", map->offset, map->offset + map->size - 1); */ + if (offset >= map->offset + && offset < map->offset + map->size) break; + } + + if (i >= dev->map_count) { + DRM_DEBUG("can't find map\n"); + return -1; + } + if (!map || ((map->flags&_DRM_RESTRICTED) && suser(curproc))) { + DRM_DEBUG("restricted map\n"); + return -1; + } + + switch (map->type) { + case _DRM_FRAME_BUFFER: + case _DRM_REGISTERS: + case _DRM_AGP: + return atop(offset); + case _DRM_SHM: + return atop(vtophys(offset)); + default: + return -1; /* This should never happen. */ + } + DRM_DEBUG("bailing out\n"); + + return -1; +} |