257 lines
7.3 KiB
C
257 lines
7.3 KiB
C
/*
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* Copyright 2007 Dave Airlied
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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 "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* 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 NONINFRINGEMENT. IN NO EVENT SHALL
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* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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/*
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* Authors: Dave Airlied <airlied@linux.ie>
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* Ben Skeggs <darktama@iinet.net.au>
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* Jeremy Kolb <jkolb@brandeis.edu>
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*/
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#include "drmP.h"
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#include "nouveau_drm.h"
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#include "nouveau_drv.h"
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#include "nouveau_dma.h"
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static struct drm_ttm_backend *
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nouveau_bo_create_ttm_backend_entry(struct drm_device * dev)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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switch (dev_priv->gart_info.type) {
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case NOUVEAU_GART_AGP:
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return drm_agp_init_ttm(dev);
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case NOUVEAU_GART_SGDMA:
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return nouveau_sgdma_init_ttm(dev);
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default:
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DRM_ERROR("Unknown GART type %d\n", dev_priv->gart_info.type);
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break;
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}
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return NULL;
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}
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static int
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nouveau_bo_fence_type(struct drm_buffer_object *bo,
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uint32_t *fclass, uint32_t *type)
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{
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/* When we get called, *fclass is set to the requested fence class */
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if (bo->mem.mask & (DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE))
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*type = 3;
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else
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*type = 1;
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return 0;
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}
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static int
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nouveau_bo_invalidate_caches(struct drm_device *dev, uint64_t buffer_flags)
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{
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/* We'll do this from user space. */
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return 0;
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}
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static int
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nouveau_bo_init_mem_type(struct drm_device *dev, uint32_t type,
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struct drm_mem_type_manager *man)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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switch (type) {
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case DRM_BO_MEM_LOCAL:
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man->flags = _DRM_FLAG_MEMTYPE_MAPPABLE |
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_DRM_FLAG_MEMTYPE_CACHED;
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man->drm_bus_maptype = 0;
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break;
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case DRM_BO_MEM_VRAM:
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man->flags = _DRM_FLAG_MEMTYPE_FIXED |
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_DRM_FLAG_MEMTYPE_MAPPABLE |
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_DRM_FLAG_NEEDS_IOREMAP;
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man->io_addr = NULL;
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man->drm_bus_maptype = _DRM_FRAME_BUFFER;
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man->io_offset = drm_get_resource_start(dev, 1);
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man->io_size = drm_get_resource_len(dev, 1);
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if (man->io_size > nouveau_mem_fb_amount(dev))
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man->io_size = nouveau_mem_fb_amount(dev);
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break;
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case DRM_BO_MEM_PRIV0:
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/* Unmappable VRAM */
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man->flags = _DRM_FLAG_MEMTYPE_CMA;
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man->drm_bus_maptype = 0;
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break;
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case DRM_BO_MEM_TT:
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switch (dev_priv->gart_info.type) {
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case NOUVEAU_GART_AGP:
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man->flags = _DRM_FLAG_MEMTYPE_MAPPABLE |
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_DRM_FLAG_MEMTYPE_CSELECT |
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_DRM_FLAG_NEEDS_IOREMAP;
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man->drm_bus_maptype = _DRM_AGP;
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break;
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case NOUVEAU_GART_SGDMA:
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man->flags = _DRM_FLAG_MEMTYPE_MAPPABLE |
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_DRM_FLAG_MEMTYPE_CSELECT |
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_DRM_FLAG_MEMTYPE_CMA;
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man->drm_bus_maptype = _DRM_SCATTER_GATHER;
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break;
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default:
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DRM_ERROR("Unknown GART type: %d\n",
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dev_priv->gart_info.type);
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return -EINVAL;
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}
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man->io_offset = dev_priv->gart_info.aper_base;
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man->io_size = dev_priv->gart_info.aper_size;
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man->io_addr = NULL;
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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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static uint32_t
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nouveau_bo_evict_mask(struct drm_buffer_object *bo)
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{
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switch (bo->mem.mem_type) {
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case DRM_BO_MEM_LOCAL:
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case DRM_BO_MEM_TT:
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return DRM_BO_FLAG_MEM_LOCAL;
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default:
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return DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_CACHED;
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}
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return 0;
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}
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/* GPU-assisted copy using NV_MEMORY_TO_MEMORY_FORMAT, can access
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* DRM_BO_MEM_{VRAM,PRIV0,TT} directly.
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*/
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static int
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nouveau_bo_move_m2mf(struct drm_buffer_object *bo, int evict, int no_wait,
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struct drm_bo_mem_reg *new_mem)
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{
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struct drm_device *dev = bo->dev;
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_drm_channel *dchan = &dev_priv->channel;
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struct drm_bo_mem_reg *old_mem = &bo->mem;
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uint32_t srch, dsth, page_count;
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/* Can happen during init/takedown */
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if (!dchan->chan)
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return -EINVAL;
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srch = old_mem->mem_type == DRM_BO_MEM_TT ? NvDmaTT : NvDmaFB;
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dsth = new_mem->mem_type == DRM_BO_MEM_TT ? NvDmaTT : NvDmaFB;
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if (srch != dchan->m2mf_dma_source || dsth != dchan->m2mf_dma_destin) {
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dchan->m2mf_dma_source = srch;
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dchan->m2mf_dma_destin = dsth;
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BEGIN_RING(NvSubM2MF,
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NV_MEMORY_TO_MEMORY_FORMAT_SET_DMA_SOURCE, 2);
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OUT_RING (dchan->m2mf_dma_source);
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OUT_RING (dchan->m2mf_dma_destin);
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}
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page_count = new_mem->num_pages;
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while (page_count) {
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int line_count = (page_count > 2047) ? 2047 : page_count;
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BEGIN_RING(NvSubM2MF, NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN, 8);
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OUT_RING (old_mem->mm_node->start << PAGE_SHIFT);
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OUT_RING (new_mem->mm_node->start << PAGE_SHIFT);
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OUT_RING (PAGE_SIZE); /* src_pitch */
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OUT_RING (PAGE_SIZE); /* dst_pitch */
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OUT_RING (PAGE_SIZE); /* line_length */
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OUT_RING (line_count);
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OUT_RING ((1<<8)|(1<<0));
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OUT_RING (0);
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BEGIN_RING(NvSubM2MF, NV_MEMORY_TO_MEMORY_FORMAT_NOP, 1);
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OUT_RING (0);
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page_count -= line_count;
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}
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return drm_bo_move_accel_cleanup(bo, evict, no_wait, dchan->chan->id,
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DRM_FENCE_TYPE_EXE, 0, new_mem);
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}
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static int
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nouveau_bo_move(struct drm_buffer_object *bo, int evict, int no_wait,
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struct drm_bo_mem_reg *new_mem)
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{
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struct drm_bo_mem_reg *old_mem = &bo->mem;
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if (new_mem->mem_type == DRM_BO_MEM_LOCAL) {
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if (old_mem->mem_type == DRM_BO_MEM_LOCAL)
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return drm_bo_move_memcpy(bo, evict, no_wait, new_mem);
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#if 0
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if (!nouveau_bo_move_flipd(bo, evict, no_wait, new_mem))
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#endif
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return drm_bo_move_memcpy(bo, evict, no_wait, new_mem);
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}
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else
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if (old_mem->mem_type == DRM_BO_MEM_LOCAL) {
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#if 0
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if (nouveau_bo_move_flips(bo, evict, no_wait, new_mem))
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#endif
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return drm_bo_move_memcpy(bo, evict, no_wait, new_mem);
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}
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else {
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// if (nouveau_bo_move_m2mf(bo, evict, no_wait, new_mem))
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return drm_bo_move_memcpy(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
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nouveau_bo_flush_ttm(struct drm_ttm *ttm)
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{
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}
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static uint32_t nouveau_mem_prios[] = {
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DRM_BO_MEM_PRIV0,
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DRM_BO_MEM_VRAM,
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DRM_BO_MEM_TT,
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DRM_BO_MEM_LOCAL
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};
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static uint32_t nouveau_busy_prios[] = {
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DRM_BO_MEM_TT,
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DRM_BO_MEM_PRIV0,
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DRM_BO_MEM_VRAM,
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DRM_BO_MEM_LOCAL
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};
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struct drm_bo_driver nouveau_bo_driver = {
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.mem_type_prio = nouveau_mem_prios,
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.mem_busy_prio = nouveau_busy_prios,
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.num_mem_type_prio = sizeof(nouveau_mem_prios)/sizeof(uint32_t),
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.num_mem_busy_prio = sizeof(nouveau_busy_prios)/sizeof(uint32_t),
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.create_ttm_backend_entry = nouveau_bo_create_ttm_backend_entry,
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.fence_type = nouveau_bo_fence_type,
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.invalidate_caches = nouveau_bo_invalidate_caches,
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.init_mem_type = nouveau_bo_init_mem_type,
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.evict_mask = nouveau_bo_evict_mask,
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.move = nouveau_bo_move,
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.ttm_cache_flush= nouveau_bo_flush_ttm
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};
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