diff options
Diffstat (limited to 'linux-core/i915_buffer.c')
| -rw-r--r-- | linux-core/i915_buffer.c | 311 |
1 files changed, 0 insertions, 311 deletions
diff --git a/linux-core/i915_buffer.c b/linux-core/i915_buffer.c deleted file mode 100644 index 4224b737..00000000 --- a/linux-core/i915_buffer.c +++ /dev/null @@ -1,311 +0,0 @@ -/************************************************************************** - * - * 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" - -struct drm_ttm_backend *i915_create_ttm_backend_entry(struct drm_device *dev) -{ - return drm_agp_init_ttm(dev); -} - -int i915_fence_type(struct drm_buffer_object *bo, - uint32_t *fclass, - uint32_t *type) -{ - if (bo->mem.proposed_flags & (DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE)) - *type = 3; - else - *type = 1; - return 0; -} - -int i915_invalidate_caches(struct drm_device *dev, uint64_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(struct drm_device *dev, uint32_t type, - struct drm_mem_type_manager *man) -{ - switch (type) { - case DRM_BO_MEM_LOCAL: - man->flags = _DRM_FLAG_MEMTYPE_MAPPABLE | - _DRM_FLAG_MEMTYPE_CACHED; - man->drm_bus_maptype = 0; - man->gpu_offset = 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; - man->gpu_offset = 0; - break; - case DRM_BO_MEM_VRAM: - 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; - man->gpu_offset = 0; - break; - case DRM_BO_MEM_PRIV0: /* for OS preallocated space */ - DRM_ERROR("PRIV0 not used yet.\n"); - break; - default: - DRM_ERROR("Unsupported memory type %u\n", (unsigned)type); - return -EINVAL; - } - return 0; -} - -/* - * i915_evict_flags: - * - * @bo: the buffer object to be evicted - * - * Return the bo flags for a buffer which is not mapped to the hardware. - * These will be placed in proposed_flags so that when the move is - * finished, they'll end up in bo->mem.flags - */ -uint64_t i915_evict_flags(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; - default: - return DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_CACHED; - } -} - -#if 0 /* See comment below */ - -static void i915_emit_copy_blit(struct drm_device * dev, - uint32_t src_offset, - uint32_t dst_offset, - uint32_t pages, int direction) -{ - uint32_t cur_pages; - uint32_t stride = PAGE_SIZE; - struct drm_i915_private *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(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; - 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(struct drm_buffer_object * bo, - int evict, int no_wait, struct drm_bo_mem_reg * new_mem) -{ - struct drm_device *dev = bo->dev; - struct drm_bo_mem_reg 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, &tmp_mem); - 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; -} - -#endif - -/* - * Disable i915_move_flip for now, since we can't guarantee that the hardware - * lock is held here. To re-enable we need to make sure either - * a) The X server is using DRM to submit commands to the ring, or - * b) DRM can use the HP ring for these blits. This means i915 needs to - * implement a new ring submission mechanism and fence class. - */ -int i915_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) { - if (1) /*i915_move_flip(bo, evict, no_wait, new_mem)*/ - return drm_bo_move_memcpy(bo, evict, no_wait, new_mem); - } else { - if (1) /*i915_move_blit(bo, evict, no_wait, new_mem)*/ - return drm_bo_move_memcpy(bo, evict, no_wait, new_mem); - } - return 0; -} - -#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)) -static inline void clflush(volatile void *__p) -{ - asm volatile("clflush %0" : "+m" (*(char __force *)__p)); -} -#endif - -static inline void drm_cache_flush_addr(void *virt) -{ -#ifdef cpu_has_clflush - int i; - - for (i = 0; i < PAGE_SIZE; i += boot_cpu_data.x86_clflush_size) - clflush(virt+i); -#endif -} - -static inline void drm_cache_flush_page(struct page *p) -{ - drm_cache_flush_addr(page_address(p)); -} - -void i915_flush_ttm(struct drm_ttm *ttm) -{ - int i; - - if (!ttm) - return; - - DRM_MEMORYBARRIER(); - -#ifdef CONFIG_X86_32 -#ifndef cpu_has_clflush -#define cpu_has_clflush 0 -#endif - /* Hopefully nobody has built an x86-64 processor without clflush */ - if (!cpu_has_clflush) { - wbinvd(); - DRM_MEMORYBARRIER(); - return; - } -#endif - - for (i = ttm->num_pages - 1; i >= 0; i--) - drm_cache_flush_page(drm_ttm_get_page(ttm, i)); - - DRM_MEMORYBARRIER(); -} |