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-rw-r--r--linux-core/i915_buffer.c311
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();
-}