renesas/drm.git - libdrm, cloned from git://anongit.freedesktop.org/mesa/drm

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Diffstat (limited to 'linux-core/drm_memory.c')

0 files changed, 0 insertions, 0 deletions

/************************************************************************** * * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., 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 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. * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * * **************************************************************************/ /* * Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com> */ #include "drmP.h" #include "i915_drm.h" #include "i915_drv.h" drm_ttm_backend_t *i915_create_ttm_backend_entry(drm_device_t * dev) { return drm_agp_init_ttm(dev, NULL); } int i915_fence_types(drm_buffer_object_t *bo, uint32_t * class, uint32_t * type) { *class = 0; if (bo->mem.flags & (DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE)) *type = 3; else *type = 1; return 0; } int i915_invalidate_caches(drm_device_t * dev, uint32_t flags) { /* * FIXME: Only emit once per batchbuffer submission. */ uint32_t flush_cmd = MI_NO_WRITE_FLUSH; if (flags & DRM_BO_FLAG_READ) flush_cmd |= MI_READ_FLUSH; if (flags & DRM_BO_FLAG_EXE) flush_cmd |= MI_EXE_FLUSH; 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: man->flags = _DRM_FLAG_MEMTYPE_MAPPABLE | _DRM_FLAG_MEMTYPE_CACHED; man->drm_bus_maptype = 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; 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->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 i915_evict_mask(drm_buffer_object_t *bo) { switch (bo->mem.mem_type) { case DRM_BO_MEM_LOCAL: case DRM_BO_MEM_TT: return DRM_BO_FLAG_MEM_LOCAL; default: return DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_CACHED; } } static void i915_emit_copy_blit(drm_device_t * dev, uint32_t src_offset, uint32_t dst_offset, uint32_t pages, int direction) { uint32_t cur_pages; uint32_t stride = PAGE_SIZE; drm_i915_private_t *dev_priv = dev->dev_private; RING_LOCALS; if (!dev_priv) return; i915_kernel_lost_context(dev); while (pages > 0) { cur_pages = pages; if (cur_pages > 2048) cur_pages = 2048; pages -= cur_pages; BEGIN_LP_RING(6); OUT_RING(SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA | XY_SRC_COPY_BLT_WRITE_RGB); OUT_RING((stride & 0xffff) | (0xcc << 16) | (1 << 24) | (1 << 25) | (direction ? (1 << 30) : 0)); OUT_RING((cur_pages << 16) | PAGE_SIZE); OUT_RING(dst_offset); OUT_RING(stride & 0xffff); OUT_RING(src_offset); ADVANCE_LP_RING(); } return; } static int i915_move_blit(drm_buffer_object_t * bo, int evict, int no_wait, drm_bo_mem_reg_t * new_mem) { drm_bo_mem_reg_t *old_mem = &bo->mem; int dir = 0; if ((old_mem->mem_type == new_mem->mem_type) && (new_mem->mm_node->start < old_mem->mm_node->start + old_mem->mm_node->size)) { dir = 1; } i915_emit_copy_blit(bo->dev, old_mem->mm_node->start << PAGE_SHIFT, new_mem->mm_node->start << PAGE_SHIFT, new_mem->num_pages, dir); i915_emit_mi_flush(bo->dev, MI_READ_FLUSH | MI_EXE_FLUSH); return drm_bo_move_accel_cleanup(bo, evict, no_wait, 0, DRM_FENCE_TYPE_EXE | DRM_I915_FENCE_TYPE_RW, DRM_I915_FENCE_FLAG_FLUSHED, new_mem); } /* * Flip destination ttm into cached-coherent AGP, * then blit and subsequently move out again. */ static int i915_move_flip(drm_buffer_object_t * bo, int evict, int no_wait, drm_bo_mem_reg_t * new_mem) { drm_device_t *dev = bo->dev; drm_bo_mem_reg_t tmp_mem; int ret; tmp_mem = *new_mem; tmp_mem.mm_node = NULL; tmp_mem.mask = DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_CACHED | DRM_BO_FLAG_FORCE_CACHING; ret = drm_bo_mem_space(bo, &tmp_mem, no_wait); if (ret) return ret; ret = drm_bind_ttm(bo->ttm, 1, tmp_mem.mm_node->start); if (ret) goto out_cleanup; ret = i915_move_blit(bo, 1, no_wait, &tmp_mem); if (ret) goto out_cleanup; ret = drm_bo_move_ttm(bo, evict, no_wait, new_mem); out_cleanup: if (tmp_mem.mm_node) { mutex_lock(&dev->struct_mutex); if (tmp_mem.mm_node != bo->pinned_node) drm_mm_put_block(tmp_mem.mm_node); tmp_mem.mm_node = NULL; mutex_unlock(&dev->struct_mutex); } return ret; } int i915_move(drm_buffer_object_t * bo, int evict, int no_wait, drm_bo_mem_reg_t * new_mem) { drm_bo_mem_reg_t *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) { if (i915_move_flip(bo, evict, no_wait, new_mem)) return drm_bo_move_memcpy(bo, evict, no_wait, new_mem); } else { if (i915_move_blit(bo, evict, no_wait, new_mem)) return drm_bo_move_memcpy(bo, evict, no_wait, new_mem); } return 0; }


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