| /************************************************************************** |
| * |
| * Copyright (c) 2007 Tungsten Graphics, Inc., Cedar Park, TX., USA, |
| * 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, sub license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL |
| * THE COPYRIGHT HOLDERS, AUTHORS 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: Thomas Hellström <thomas-at-tungstengraphics-dot-com> |
| */ |
| |
| #include "drmP.h" |
| #include "via_drm.h" |
| #include "via_drv.h" |
| |
| struct drm_ttm_backend *via_create_ttm_backend_entry(struct drm_device * dev) |
| { |
| return drm_agp_init_ttm(dev); |
| } |
| |
| int via_fence_types(struct drm_buffer_object *bo, uint32_t * type) |
| { |
| *type = 3; |
| return 0; |
| } |
| |
| int via_invalidate_caches(struct drm_device * dev, uint64_t flags) |
| { |
| /* |
| * FIXME: Invalidate texture caches here. |
| */ |
| |
| return 0; |
| } |
| |
| |
| static int via_vram_info(struct drm_device *dev, |
| unsigned long *offset, |
| unsigned long *size) |
| { |
| struct pci_dev *pdev = dev->pdev; |
| unsigned long flags; |
| |
| int ret = -EINVAL; |
| int i; |
| for (i=0; i<6; ++i) { |
| flags = pci_resource_flags(pdev, i); |
| if ((flags & (IORESOURCE_MEM | IORESOURCE_PREFETCH)) == |
| (IORESOURCE_MEM | IORESOURCE_PREFETCH)) { |
| ret = 0; |
| break; |
| } |
| } |
| |
| if (ret) { |
| DRM_ERROR("Could not find VRAM PCI resource\n"); |
| return ret; |
| } |
| |
| *offset = pci_resource_start(pdev, i); |
| *size = pci_resource_end(pdev, i) - *offset + 1; |
| return 0; |
| } |
| |
| int via_init_mem_type(struct drm_device * dev, uint32_t type, |
| struct drm_mem_type_manager * man) |
| { |
| switch (type) { |
| case DRM_BO_MEM_LOCAL: |
| /* System memory */ |
| |
| man->flags = _DRM_FLAG_MEMTYPE_MAPPABLE | |
| _DRM_FLAG_MEMTYPE_CACHED; |
| man->drm_bus_maptype = 0; |
| break; |
| |
| case DRM_BO_MEM_TT: |
| /* Dynamic agpgart memory */ |
| |
| 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_NEEDS_IOREMAP; |
| |
| /* Only to get pte protection right. */ |
| |
| man->drm_bus_maptype = _DRM_AGP; |
| break; |
| |
| case DRM_BO_MEM_VRAM: |
| /* "On-card" video ram */ |
| |
| man->flags = _DRM_FLAG_MEMTYPE_MAPPABLE | _DRM_FLAG_NEEDS_IOREMAP; |
| man->drm_bus_maptype = _DRM_FRAME_BUFFER; |
| man->io_addr = NULL; |
| return via_vram_info(dev, &man->io_offset, &man->io_size); |
| break; |
| |
| case DRM_BO_MEM_PRIV0: |
| /* Pre-bound agpgart memory */ |
| |
| 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_FIXED | _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 via_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; /* Evict TT to local */ |
| case DRM_BO_MEM_PRIV0: /* Evict pre-bound AGP to TT */ |
| return DRM_BO_MEM_TT; |
| 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_MEM_LOCAL; |
| } |
| } |