diff options
Diffstat (limited to 'linux-core')
| -rw-r--r-- | linux-core/nouveau_buffer.c | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/linux-core/nouveau_buffer.c b/linux-core/nouveau_buffer.c new file mode 100644 index 00000000..e9f09eb3 --- /dev/null +++ b/linux-core/nouveau_buffer.c @@ -0,0 +1,145 @@ +/* + * Copyright 2005 Stephane Marchesin. + * 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 + * VA LINUX SYSTEMS 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. + */ +/* + * Authors: Jeremy Kolb <jkolb@brandeis.edu> + */ + +#include "drmP.h" +#include "nouveau_drm.h" +#include "nouveau_drv.h" + +#ifdef NOUVEAU_HAVE_BUFFER + +struct drm_ttm_backend *nouveau_create_ttm_backend_entry(struct drm_device * dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + + return drm_agp_init_ttm(dev); +} + +int nouveau_fence_types(struct drm_buffer_object *bo, + uint32_t *fclass, + uint32_t *type) +{ + *fclass = 0; + + if (bo->mem.mask & (DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE)) + *type = 3; + else + *type = 1; + return 0; + +} +int nouveau_invalidate_caches(struct drm_device *dev, uint64_t buffer_flags) +{ + /* We'll do this from user space. */ + return 0; +} + +int nouveau_init_mem_type(struct drm_device *dev, + uint32_t type, + struct drm_mem_type_manager *man) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + + switch (type) { + case DRM_BO_MEM_LOCAL: + man->flags = _DRM_FLAG_MEMTYPE_MAPPABLE | + _DRM_FLAG_MEMTYPE_CACHED; + man->drm_bus_maptype = 0; + break; + + case DRM_BO_MEM_VRAM: + man->flags = _DRM_FLAG_MEMTYPE_FIXED | + _DRM_FLAG_MEMTYPE_MAPPABLE | + _DRM_FLAG_NEEDS_IOREMAP; + man->io_addr = NULL; + man->drm_bus_maptype = _DRM_FRAME_BUFFER; + man->io_offset = drm_get_resource_start(dev, 0); + man->io_size = drm_get_resource_len(dev, 0); + break; + + case DRM_BO_MEM_TT: + if (!(drm_core_has_AGP(dev) && dev->agp)) { + DRM_ERROR("AGP is not enabled for memory type %u\n", + (unsigned)type); + return -EINVAL; + } + + man->io_offset = dev->agp->agp_info.aper_base; + man->io_size = dev->agp->agp_info.aper_size * 1024 * 1024; + man->io_addr = NULL; + man->flags = _DRM_FLAG_MEMTYPE_MAPPABLE | + _DRM_FLAG_MEMTYPE_CSELECT | _DRM_FLAG_NEEDS_IOREMAP; + man->drm_bus_maptype = _DRM_AGP; + break; + + default: + DRM_ERROR("Unsupported memory type %u\n", (unsigned)type); + return -EINVAL; + } + return 0; +} + +uint32_t nouveau_evict_mask(struct drm_buffer_object *bo) +{ + switch (bo->mem.mem_type) { + case DRM_BO_MEM_LOCAL: + case DRM_BO_MEM_TT: + return DRM_BO_FLAG_MEM_LOCAL; + case DRM_BO_MEM_VRAM: + if (bo->mem.num_pages > 128) + return DRM_BO_MEM_TT; + else + return DRM_BO_MEM_LOCAL; + default: + return DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_CACHED; + } + +} + +int nouveau_move(struct drm_buffer_object *bo, + int evict, + int no_wait, + struct drm_bo_mem_reg *new_mem) +{ + struct drm_bo_mem_reg *old_mem = &bo->mem; + + if (old_mem->mem_type == DRM_BO_MEM_LOCAL) { + return drm_bo_move_memcpy(bo, evict, no_wait, new_mem); + else if (new_mem->mem_type == DRM_BO_MEM_LOCAL) { + return drm_bo_move_memcpy(bo, evict, no_wait, new_mem); + } + else { + return drm_bo_move_memcpy(bo, evict, no_wait, new_mem); + } + return 0; +} + +void nouveau_flush_ttm(struct drm_ttm *ttm) +{ + +} + +#endif |