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/*
* Copyright 2007 Dave Airlied
* 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, sublicense,
* 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 above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* 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 NONINFRINGEMENT. IN NO EVENT SHALL
* VA LINUX SYSTEMS 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.
*/
/*
* Authors: Dave Airlied <airlied@linux.ie>
* Ben Skeggs <darktama@iinet.net.au>
* Jeremy Kolb <jkolb@brandeis.edu>
*/
#include "drmP.h"
#include "nouveau_drm.h"
#include "nouveau_drv.h"
#include "nouveau_dma.h"
static struct drm_ttm_backend *
nouveau_bo_create_ttm_backend_entry(struct drm_device * dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
switch (dev_priv->gart_info.type) {
case NOUVEAU_GART_AGP:
return drm_agp_init_ttm(dev);
case NOUVEAU_GART_SGDMA:
return nouveau_sgdma_init_ttm(dev);
default:
DRM_ERROR("Unknown GART type %d\n", dev_priv->gart_info.type);
break;
}
return NULL;
}
static int
nouveau_bo_fence_type(struct drm_buffer_object *bo,
uint32_t *fclass, uint32_t *type)
{
/* When we get called, *fclass is set to the requested fence class */
if (bo->mem.mask & (DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE))
*type = 3;
else
*type = 1;
return 0;
}
static int
nouveau_bo_invalidate_caches(struct drm_device *dev, uint64_t buffer_flags)
{
/* We'll do this from user space. */
return 0;
}
static int
nouveau_bo_init_mem_type(struct drm_device *dev, uint32_t type,
struct drm_mem_type_manager *man)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
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_VRAM:
man->flags = _DRM_FLAG_MEMTYPE_FIXED |
_DRM_FLAG_MEMTYPE_MAPPABLE |
_DRM_FLAG_NEEDS_IOREMAP;
man->io_addr = NULL;
man->drm_bus_maptype = _DRM_FRAME_BUFFER;
man->io_offset = drm_get_resource_start(dev, 1);
man->io_size = drm_get_resource_len(dev, 1);
if (man->io_size > nouveau_mem_fb_amount(dev))
man->io_size = nouveau_mem_fb_amount(dev);
break;
case DRM_BO_MEM_PRIV0:
/* Unmappable VRAM */
man->flags = _DRM_FLAG_MEMTYPE_CMA;
man->drm_bus_maptype = 0;
break;
case DRM_BO_MEM_TT:
switch (dev_priv->gart_info.type) {
case NOUVEAU_GART_AGP:
man->flags = _DRM_FLAG_MEMTYPE_MAPPABLE |
_DRM_FLAG_MEMTYPE_CSELECT |
_DRM_FLAG_NEEDS_IOREMAP;
man->drm_bus_maptype = _DRM_AGP;
break;
case NOUVEAU_GART_SGDMA:
man->flags = _DRM_FLAG_MEMTYPE_MAPPABLE |
_DRM_FLAG_MEMTYPE_CSELECT |
_DRM_FLAG_MEMTYPE_CMA;
man->drm_bus_maptype = _DRM_SCATTER_GATHER;
break;
default:
DRM_ERROR("Unknown GART type: %d\n",
dev_priv->gart_info.type);
return -EINVAL;
}
man->io_offset = dev_priv->gart_info.aper_base;
man->io_size = dev_priv->gart_info.aper_size;
man->io_addr = NULL;
break;
default:
DRM_ERROR("Unsupported memory type %u\n", (unsigned)type);
return -EINVAL;
}
return 0;
}
static uint32_t
nouveau_bo_evict_mask(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;
}
return 0;
}
/* GPU-assisted copy using NV_MEMORY_TO_MEMORY_FORMAT, can access
* DRM_BO_MEM_{VRAM,PRIV0,TT} directly.
*/
static int
nouveau_bo_move_m2mf(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_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_drm_channel *dchan = &dev_priv->channel;
struct drm_bo_mem_reg *old_mem = &bo->mem;
uint32_t srch, dsth, page_count;
/* Can happen during init/takedown */
if (!dchan->chan)
return -EINVAL;
srch = old_mem->mem_type == DRM_BO_MEM_TT ? NvDmaTT : NvDmaFB;
dsth = new_mem->mem_type == DRM_BO_MEM_TT ? NvDmaTT : NvDmaFB;
if (srch != dchan->m2mf_dma_source || dsth != dchan->m2mf_dma_destin) {
dchan->m2mf_dma_source = srch;
dchan->m2mf_dma_destin = dsth;
BEGIN_RING(NvSubM2MF,
NV_MEMORY_TO_MEMORY_FORMAT_SET_DMA_SOURCE, 2);
OUT_RING (dchan->m2mf_dma_source);
OUT_RING (dchan->m2mf_dma_destin);
}
page_count = new_mem->num_pages;
while (page_count) {
int line_count = (page_count > 2047) ? 2047 : page_count;
BEGIN_RING(NvSubM2MF, NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN, 8);
OUT_RING (old_mem->mm_node->start << PAGE_SHIFT);
OUT_RING (new_mem->mm_node->start << PAGE_SHIFT);
OUT_RING (PAGE_SIZE); /* src_pitch */
OUT_RING (PAGE_SIZE); /* dst_pitch */
OUT_RING (PAGE_SIZE); /* line_length */
OUT_RING (line_count);
OUT_RING ((1<<8)|(1<<0));
OUT_RING (0);
BEGIN_RING(NvSubM2MF, NV_MEMORY_TO_MEMORY_FORMAT_NOP, 1);
OUT_RING (0);
page_count -= line_count;
}
return drm_bo_move_accel_cleanup(bo, evict, no_wait, dchan->chan->id,
DRM_FENCE_TYPE_EXE, 0, new_mem);
}
static int
nouveau_bo_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 (new_mem->mem_type == DRM_BO_MEM_LOCAL) {
if (old_mem->mem_type == DRM_BO_MEM_LOCAL)
return drm_bo_move_memcpy(bo, evict, no_wait, new_mem);
#if 0
if (!nouveau_bo_move_flipd(bo, evict, no_wait, new_mem))
#endif
return drm_bo_move_memcpy(bo, evict, no_wait, new_mem);
}
else
if (old_mem->mem_type == DRM_BO_MEM_LOCAL) {
#if 0
if (nouveau_bo_move_flips(bo, evict, no_wait, new_mem))
#endif
return drm_bo_move_memcpy(bo, evict, no_wait, new_mem);
}
else {
// if (nouveau_bo_move_m2mf(bo, evict, no_wait, new_mem))
return drm_bo_move_memcpy(bo, evict, no_wait, new_mem);
}
return 0;
}
static void
nouveau_bo_flush_ttm(struct drm_ttm *ttm)
{
}
static uint32_t nouveau_mem_prios[] = {
DRM_BO_MEM_PRIV0,
DRM_BO_MEM_VRAM,
DRM_BO_MEM_TT,
DRM_BO_MEM_LOCAL
};
static uint32_t nouveau_busy_prios[] = {
DRM_BO_MEM_TT,
DRM_BO_MEM_PRIV0,
DRM_BO_MEM_VRAM,
DRM_BO_MEM_LOCAL
};
struct drm_bo_driver nouveau_bo_driver = {
.mem_type_prio = nouveau_mem_prios,
.mem_busy_prio = nouveau_busy_prios,
.num_mem_type_prio = sizeof(nouveau_mem_prios)/sizeof(uint32_t),
.num_mem_busy_prio = sizeof(nouveau_busy_prios)/sizeof(uint32_t),
.create_ttm_backend_entry = nouveau_bo_create_ttm_backend_entry,
.fence_type = nouveau_bo_fence_type,
.invalidate_caches = nouveau_bo_invalidate_caches,
.init_mem_type = nouveau_bo_init_mem_type,
.evict_mask = nouveau_bo_evict_mask,
.move = nouveau_bo_move,
.ttm_cache_flush= nouveau_bo_flush_ttm
};
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