diff options
Diffstat (limited to 'linux-core/i915_buffer.c')
| -rw-r--r-- | linux-core/i915_buffer.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/linux-core/i915_buffer.c b/linux-core/i915_buffer.c index c3e54468..53002301 100644 --- a/linux-core/i915_buffer.c +++ b/linux-core/i915_buffer.c @@ -64,3 +64,36 @@ int i915_invalidate_caches(drm_device_t * dev, uint32_t flags) return i915_emit_mi_flush(dev, flush_cmd); } + +int i915_init_mem_type(drm_device_t *dev, uint32_t type, + drm_mem_type_manager_t *man) +{ + switch(type) { + case DRM_BO_MEM_LOCAL: + break; + case DRM_BO_MEM_TT: + man->flags = _DRM_FLAG_MEMTYPE_MAPPABLE | + _DRM_FLAG_MEMTYPE_CACHED; + break; + case DRM_BO_MEM_PRIV0: + 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->flags = _DRM_FLAG_MEMTYPE_MAPPABLE | + _DRM_FLAG_MEMTYPE_CACHED | + _DRM_FLAG_MEMTYPE_FIXED | + _DRM_FLAG_NEEDS_IOREMAP; + + man->io_addr = NULL; + break; + default: + DRM_ERROR("Unsupported memory type %u\n", (unsigned) type); + return -EINVAL; + } + return 0; +} |