diff options
author | Eric Anholt <anholt@freebsd.org> | 2005-06-29 02:54:19 +0000 |
---|---|---|
committer | Eric Anholt <anholt@freebsd.org> | 2005-06-29 02:54:19 +0000 |
commit | c798a382f1e11a0fd60a78924db0663f8e988a1b (patch) | |
tree | d7bdee69a2534bdc9783d67e8c1dafbeac7008b8 /bsd-core/drm_bufs.c | |
parent | 5d96c74ff1fe9b2d37e22dbea9882791aae389bf (diff) |
Get the BSD DRM compiling again after MGA and mapping changes. Note that
i915 has been disabled for the moment, rather than working around
linux-specific code in the shared dir.
Diffstat (limited to 'bsd-core/drm_bufs.c')
-rw-r--r-- | bsd-core/drm_bufs.c | 239 |
1 files changed, 136 insertions, 103 deletions
diff --git a/bsd-core/drm_bufs.c b/bsd-core/drm_bufs.c index 9397e4df..0cc2a0d9 100644 --- a/bsd-core/drm_bufs.c +++ b/bsd-core/drm_bufs.c @@ -91,98 +91,35 @@ unsigned long drm_get_resource_len(drm_device_t *dev, unsigned int resource) return len; } -int drm_initmap(drm_device_t *dev, unsigned long start, unsigned long len, - unsigned int resource, int type, int flags) +int drm_addmap(drm_device_t * dev, unsigned long offset, unsigned long size, + drm_map_type_t type, drm_map_flags_t flags, drm_local_map_t **map_ptr) { drm_local_map_t *map; - struct resource *bsr; - - if (type != _DRM_REGISTERS && type != _DRM_FRAME_BUFFER) - return EINVAL; - if (len == 0) - return EINVAL; - - map = malloc(sizeof(*map), M_DRM, M_ZERO | M_NOWAIT); - if (map == NULL) - return ENOMEM; - - map->rid = resource * 4 + 0x10; - bsr = bus_alloc_resource_any(dev->device, SYS_RES_MEMORY, &map->rid, - RF_ACTIVE | RF_SHAREABLE); - if (bsr == NULL) { - DRM_ERROR("Couldn't allocate %s resource\n", - ((type == _DRM_REGISTERS) ? "mmio" : "framebuffer")); - free(map, M_DRM); - return ENOMEM; - } - - map->kernel_owned = 1; - map->type = type; - map->flags = flags; - map->bsr = bsr; - map->bst = rman_get_bustag(bsr); - map->bsh = rman_get_bushandle(bsr); - map->offset = start; - map->size = len; - - if (type == _DRM_REGISTERS) - map->handle = rman_get_virtual(bsr); - - DRM_DEBUG("initmap %d,0x%x@0x%lx/0x%lx\n", map->type, map->flags, - map->offset, map->size); - - if (map->flags & _DRM_WRITE_COMBINING) { - int err; - - err = drm_mtrr_add(map->offset, map->size, DRM_MTRR_WC); - if (err == 0) - map->mtrr = 1; - } - - DRM_LOCK(); - TAILQ_INSERT_TAIL(&dev->maplist, map, link); - DRM_UNLOCK(); - - return 0; -} - -int drm_addmap(DRM_IOCTL_ARGS) -{ - DRM_DEVICE; - drm_map_t request; - drm_local_map_t *map; - - if (!(dev->flags & (FREAD|FWRITE))) - return DRM_ERR(EACCES); /* Require read/write */ - - DRM_COPY_FROM_USER_IOCTL( request, (drm_map_t *)data, sizeof(drm_map_t) ); /* Only allow shared memory to be removable since we only keep enough * book keeping information about shared memory to allow for removal * when processes fork. */ - if ((request.flags & _DRM_REMOVABLE) && request.type != _DRM_SHM) + if ((flags & _DRM_REMOVABLE) && type != _DRM_SHM) return EINVAL; - if ((request.offset & PAGE_MASK) || (request.size & PAGE_MASK)) + if ((offset & PAGE_MASK) || (size & PAGE_MASK)) return EINVAL; - if (request.offset + request.size < request.offset) + if (offset + size < offset) return EINVAL; - DRM_DEBUG("offset = 0x%08lx, size = 0x%08lx, type = %d\n", - request.offset, request.size, request.type); + DRM_DEBUG("offset = 0x%08lx, size = 0x%08lx, type = %d\n", offset, + size, type); /* Check if this is just another version of a kernel-allocated map, and * just hand that back if so. */ - if (request.type == _DRM_REGISTERS || request.type == _DRM_FRAME_BUFFER) + if (type == _DRM_REGISTERS || type == _DRM_FRAME_BUFFER) { DRM_LOCK(); TAILQ_FOREACH(map, &dev->maplist, link) { - if (map->kernel_owned && map->type == request.type && - map->offset == request.offset) { - /* XXX: this size setting is questionable. */ - map->size = request.size; - DRM_DEBUG("Found kernel map %d\n", request.type); + if (map->type == type && map->offset == offset) { + map->size = size; + DRM_DEBUG("Found kernel map %d\n", type); goto done; } } @@ -196,10 +133,10 @@ int drm_addmap(DRM_IOCTL_ARGS) if ( !map ) return DRM_ERR(ENOMEM); - map->offset = request.offset; - map->size = request.size; - map->type = request.type; - map->flags = request.flags; + map->offset = offset; + map->size = size; + map->type = type; + map->flags = flags; switch ( map->type ) { case _DRM_REGISTERS: @@ -264,26 +201,49 @@ int drm_addmap(DRM_IOCTL_ARGS) done: /* Jumped to, with lock held, when a kernel map is found. */ + DRM_UNLOCK(); + + DRM_DEBUG("Added map %d 0x%lx/0x%lx\n", map->type, map->offset, + map->size); + + *map_ptr = map; + + return 0; +} + +int drm_addmap_ioctl(DRM_IOCTL_ARGS) +{ + drm_map_t request; + drm_local_map_t *map; + int err; + DRM_DEVICE; + + if (!(dev->flags & (FREAD|FWRITE))) + return DRM_ERR(EACCES); /* Require read/write */ + + DRM_COPY_FROM_USER_IOCTL(request, (drm_map_t *)data, sizeof(drm_map_t)); + + err = drm_addmap(dev, request.offset, request.size, request.type, + request.flags, &map); + if (err != 0) + return err; + request.offset = map->offset; request.size = map->size; request.type = map->type; request.flags = map->flags; request.mtrr = map->mtrr; request.handle = map->handle; - DRM_UNLOCK(); - - DRM_DEBUG("Added map %d 0x%lx/0x%lx\n", request.type, request.offset, request.size); - if ( request.type != _DRM_SHM ) { + if (request.type != _DRM_SHM) { request.handle = (void *)request.offset; } - - DRM_COPY_TO_USER_IOCTL( (drm_map_t *)data, request, sizeof(drm_map_t) ); + DRM_COPY_TO_USER_IOCTL((drm_map_t *)data, request, sizeof(drm_map_t)); return 0; } -void drm_remove_map(drm_device_t *dev, drm_local_map_t *map) +void drm_rmmap(drm_device_t *dev, drm_local_map_t *map) { DRM_SPINLOCK_ASSERT(&dev->dev_lock); @@ -326,7 +286,7 @@ void drm_remove_map(drm_device_t *dev, drm_local_map_t *map) * isn't in use. */ -int drm_rmmap(DRM_IOCTL_ARGS) +int drm_rmmap_ioctl(DRM_IOCTL_ARGS) { DRM_DEVICE; drm_local_map_t *map; @@ -347,7 +307,7 @@ int drm_rmmap(DRM_IOCTL_ARGS) return DRM_ERR(EINVAL); } - drm_remove_map(dev, map); + drm_rmmap(dev, map); DRM_UNLOCK(); @@ -378,7 +338,7 @@ static void drm_cleanup_buf_error(drm_device_t *dev, drm_buf_entry_t *entry) } } -static int drm_addbufs_agp(drm_device_t *dev, drm_buf_desc_t *request) +static int drm_do_addbufs_agp(drm_device_t *dev, drm_buf_desc_t *request) { drm_device_dma_t *dma = dev->dma; drm_buf_entry_t *entry; @@ -487,7 +447,7 @@ static int drm_addbufs_agp(drm_device_t *dev, drm_buf_desc_t *request) return 0; } -static int drm_addbufs_pci(drm_device_t *dev, drm_buf_desc_t *request) +static int drm_do_addbufs_pci(drm_device_t *dev, drm_buf_desc_t *request) { drm_device_dma_t *dma = dev->dma; int count; @@ -634,7 +594,7 @@ static int drm_addbufs_pci(drm_device_t *dev, drm_buf_desc_t *request) } -static int drm_addbufs_sg(drm_device_t *dev, drm_buf_desc_t *request) +static int drm_do_addbufs_sg(drm_device_t *dev, drm_buf_desc_t *request) { drm_device_dma_t *dma = dev->dma; drm_buf_entry_t *entry; @@ -745,23 +705,81 @@ static int drm_addbufs_sg(drm_device_t *dev, drm_buf_desc_t *request) return 0; } -int drm_addbufs(DRM_IOCTL_ARGS) +int drm_addbufs_agp(drm_device_t *dev, drm_buf_desc_t *request) { - DRM_DEVICE; - drm_buf_desc_t request; - int err; - int order; + int order, ret; - DRM_COPY_FROM_USER_IOCTL( request, (drm_buf_desc_t *)data, sizeof(request) ); + DRM_SPINLOCK(&dev->dma_lock); - if (request.count < 0 || request.count > 4096) + if (request->count < 0 || request->count > 4096) + return DRM_ERR(EINVAL); + + order = drm_order(request->size); + if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER) return DRM_ERR(EINVAL); - order = drm_order(request.size); + /* No more allocations after first buffer-using ioctl. */ + if (dev->buf_use != 0) { + DRM_SPINUNLOCK(&dev->dma_lock); + return DRM_ERR(EBUSY); + } + /* No more than one allocation per order */ + if (dev->dma->bufs[order].buf_count != 0) { + DRM_SPINUNLOCK(&dev->dma_lock); + return DRM_ERR(ENOMEM); + } + + ret = drm_do_addbufs_agp(dev, request); + + DRM_SPINUNLOCK(&dev->dma_lock); + + return ret; +} + +int drm_addbufs_sg(drm_device_t *dev, drm_buf_desc_t *request) +{ + int order, ret; + + DRM_SPINLOCK(&dev->dma_lock); + + if (request->count < 0 || request->count > 4096) + return DRM_ERR(EINVAL); + + order = drm_order(request->size); if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER) return DRM_ERR(EINVAL); + /* No more allocations after first buffer-using ioctl. */ + if (dev->buf_use != 0) { + DRM_SPINUNLOCK(&dev->dma_lock); + return DRM_ERR(EBUSY); + } + /* No more than one allocation per order */ + if (dev->dma->bufs[order].buf_count != 0) { + DRM_SPINUNLOCK(&dev->dma_lock); + return DRM_ERR(ENOMEM); + } + + ret = drm_do_addbufs_sg(dev, request); + + DRM_SPINUNLOCK(&dev->dma_lock); + + return ret; +} + +int drm_addbufs_pci(drm_device_t *dev, drm_buf_desc_t *request) +{ + int order, ret; + DRM_SPINLOCK(&dev->dma_lock); + + if (request->count < 0 || request->count > 4096) + return DRM_ERR(EINVAL); + + order = drm_order(request->size); + if (order < DRM_MIN_ORDER || order > DRM_MAX_ORDER) + return DRM_ERR(EINVAL); + /* No more allocations after first buffer-using ioctl. */ if (dev->buf_use != 0) { DRM_SPINUNLOCK(&dev->dma_lock); @@ -773,16 +791,31 @@ int drm_addbufs(DRM_IOCTL_ARGS) return DRM_ERR(ENOMEM); } - if ( request.flags & _DRM_AGP_BUFFER ) + ret = drm_do_addbufs_pci(dev, request); + + DRM_SPINUNLOCK(&dev->dma_lock); + + return ret; +} + +int drm_addbufs_ioctl(DRM_IOCTL_ARGS) +{ + DRM_DEVICE; + drm_buf_desc_t request; + int err; + + DRM_COPY_FROM_USER_IOCTL(request, (drm_buf_desc_t *)data, + sizeof(request)); + + if (request.flags & _DRM_AGP_BUFFER) err = drm_addbufs_agp(dev, &request); - else - if ( request.flags & _DRM_SG_BUFFER ) + else if (request.flags & _DRM_SG_BUFFER) err = drm_addbufs_sg(dev, &request); else err = drm_addbufs_pci(dev, &request); - DRM_SPINUNLOCK(&dev->dma_lock); - DRM_COPY_TO_USER_IOCTL((drm_buf_desc_t *)data, request, sizeof(request)); + DRM_COPY_TO_USER_IOCTL((drm_buf_desc_t *)data, request, + sizeof(request)); return err; } |