mirror of
https://gitlab.freedesktop.org/mesa/drm.git
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240 lines
6.8 KiB
C
240 lines
6.8 KiB
C
/**************************************************************************
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*
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* Copyright (c) 2007 Tungsten Graphics, Inc., Cedar Park, TX., USA,
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* All Rights Reserved.
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* Copyright (c) 2009 VMware, Inc., Palo Alto, CA., USA,
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/*
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* Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com>
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*/
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#include "drmP.h"
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#include "ochr_drm.h"
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#include "via_drv.h"
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#include "ttm/ttm_bo_driver.h"
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#include "ttm/ttm_placement_common.h"
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#include "ttm/ttm_execbuf_util.h"
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struct ttm_backend *via_create_ttm_backend_entry(struct ttm_bo_device *bdev)
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{
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struct drm_via_private *dev_priv =
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container_of(bdev, struct drm_via_private, bdev);
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return ttm_agp_backend_init(bdev, dev_priv->dev->agp->bridge);
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}
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int via_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags)
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{
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/*
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* FIXME: Invalidate texture caches here.
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*/
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return 0;
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}
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int via_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
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struct ttm_mem_type_manager *man)
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{
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struct drm_via_private *dev_priv =
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container_of(bdev, struct drm_via_private, bdev);
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switch (type) {
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case TTM_PL_SYSTEM:
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/* System memory */
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man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
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man->available_caching = TTM_PL_MASK_CACHING;
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man->default_caching = TTM_PL_FLAG_CACHED;
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break;
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case TTM_PL_TT:
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man->gpu_offset = dev_priv->tt_start;
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man->io_offset = dev_priv->tt_start;
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man->io_size = dev_priv->tt_size;
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man->io_addr = NULL;
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man->flags = TTM_MEMTYPE_FLAG_NEEDS_IOREMAP |
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TTM_MEMTYPE_FLAG_MAPPABLE;
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man->available_caching = TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC;
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man->default_caching = TTM_PL_FLAG_WC;
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break;
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case TTM_PL_VRAM:
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/* "On-card" video ram */
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man->gpu_offset = 0;
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man->io_offset = dev_priv->vram_start;
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man->io_size = dev_priv->vram_size * 1024;
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man->flags = TTM_MEMTYPE_FLAG_FIXED |
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TTM_MEMTYPE_FLAG_NEEDS_IOREMAP | TTM_MEMTYPE_FLAG_MAPPABLE;
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man->io_addr = NULL;
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man->available_caching = TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC;
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man->default_caching = TTM_PL_FLAG_WC;
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break;
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case TTM_PL_PRIV0:
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man->gpu_offset = dev_priv->agp_bo->offset;
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man->io_offset = dev_priv->agp_bo->offset;
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man->io_size = (dev_priv->agp_bo->num_pages << PAGE_SHIFT);
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man->io_addr = NULL;
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man->flags = TTM_MEMTYPE_FLAG_FIXED |
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TTM_MEMTYPE_FLAG_NEEDS_IOREMAP | TTM_MEMTYPE_FLAG_MAPPABLE;
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man->available_caching = TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC;
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man->default_caching = TTM_PL_FLAG_WC;
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break;
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default:
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DRM_ERROR("Unsupported memory type %u\n", (unsigned)type);
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return -EINVAL;
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}
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return 0;
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}
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uint32_t via_evict_flags(struct ttm_buffer_object * bo)
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{
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uint32_t cur_placement = bo->mem.placement & ~TTM_PL_MASK_MEMTYPE;
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switch (bo->mem.mem_type) {
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/*
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* Evict pre-bound AGP to VRAM, since
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* that's the only fastpath we have.
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* That is, when that fast-path is implemented.
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*/
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case TTM_PL_PRIV0:
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return cur_placement | TTM_PL_FLAG_SYSTEM | TTM_PL_FLAG_WC;
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case TTM_PL_TT:
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return cur_placement | TTM_PL_FLAG_SYSTEM;
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default:
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return (cur_placement & ~TTM_PL_MASK_CACHING) |
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TTM_PL_FLAG_SYSTEM |
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TTM_PL_FLAG_CACHED;
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}
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}
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static int via_move_dmablit(struct ttm_buffer_object *bo,
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bool evict, bool no_wait, struct ttm_mem_reg *new_mem)
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{
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struct drm_via_private *dev_priv =
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container_of(bo->bdev, struct drm_via_private, bdev);
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int ret;
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int fence_class;
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struct ttm_fence_object *fence;
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if (no_wait) {
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DRM_ERROR("Move dmablit busy.\n");
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return -EBUSY;
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}
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ret = via_dmablit_bo(bo, new_mem, NULL, &fence_class);
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if (unlikely(ret != 0)) {
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DRM_ERROR("Dmablit error %d\n", ret);
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return ret;
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}
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ret = ttm_fence_object_create(&dev_priv->fdev, fence_class,
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TTM_FENCE_TYPE_EXE,
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TTM_FENCE_FLAG_EMIT, &fence);
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if (unlikely(ret != 0)) {
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(void)via_driver_dma_quiescent(dev_priv->dev);
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if (fence)
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ttm_fence_object_unref(&fence);
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}
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ret = ttm_bo_move_accel_cleanup(bo, (void *)fence,
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(void *)(unsigned long)
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TTM_FENCE_TYPE_EXE, evict, no_wait,
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new_mem);
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if (fence)
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ttm_fence_object_unref(&fence);
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return ret;
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}
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static int via_move_vram_tt(struct ttm_buffer_object *bo,
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bool evict, bool no_wait, struct ttm_mem_reg *new_mem)
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{
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struct ttm_mem_reg *old_mem = &bo->mem;
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int ret;
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if (old_mem->mem_type == TTM_PL_TT) {
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struct ttm_mem_reg tmp_mem = *old_mem;
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tmp_mem.mm_node = NULL;
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tmp_mem.mem_type = TTM_PL_SYSTEM;
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ret = ttm_bo_move_ttm(bo, evict, no_wait, &tmp_mem);
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if (ret)
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return ret;
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return ttm_bo_move_memcpy(bo, evict, no_wait, new_mem);
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} else {
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struct ttm_mem_reg tmp_mem = *new_mem;
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tmp_mem.mm_node = NULL;
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tmp_mem.mem_type = TTM_PL_SYSTEM;
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ret = via_move_dmablit(bo, true, no_wait, &tmp_mem);
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if (ret)
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return ret;
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return ttm_bo_move_ttm(bo, evict, no_wait, new_mem);
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}
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return 0;
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}
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static void via_move_null(struct ttm_buffer_object *bo,
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struct ttm_mem_reg *new_mem)
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{
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struct ttm_mem_reg *old_mem = &bo->mem;
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BUG_ON(old_mem->mm_node != NULL);
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*old_mem = *new_mem;
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new_mem->mm_node = NULL;
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}
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int via_bo_move(struct ttm_buffer_object *bo,
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bool evict, bool interruptible, bool no_wait,
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struct ttm_mem_reg *new_mem)
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{
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struct ttm_mem_reg *old_mem = &bo->mem;
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if (old_mem->mem_type == TTM_PL_SYSTEM && bo->ttm == NULL) {
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via_move_null(bo, new_mem);
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return 0;
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}
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if (old_mem->mem_type == TTM_PL_VRAM &&
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new_mem->mem_type == TTM_PL_SYSTEM) {
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int ret = via_move_dmablit(bo, evict, no_wait, new_mem);
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if (likely(ret == 0))
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return 0;
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}
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if ((old_mem->mem_type == TTM_PL_VRAM &&
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new_mem->mem_type == TTM_PL_TT) ||
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(old_mem->mem_type == TTM_PL_TT &&
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new_mem->mem_type == TTM_PL_VRAM)) {
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int ret = via_move_vram_tt(bo, evict, no_wait, new_mem);
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if (likely(ret == 0))
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return 0;
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}
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return ttm_bo_move_memcpy(bo, evict, no_wait, new_mem);
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}
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