mirror of
https://github.com/torvalds/linux.git
synced 2024-11-08 05:01:48 +00:00
100 lines
2.7 KiB
C
100 lines
2.7 KiB
C
/*
|
|
* Copyright 2010 Red Hat Inc.
|
|
*
|
|
* 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 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
|
|
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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: Ben Skeggs
|
|
*/
|
|
|
|
#include "drmP.h"
|
|
#include "nouveau_drv.h"
|
|
#include "nouveau_mm.h"
|
|
|
|
bool
|
|
nvc0_vram_flags_valid(struct drm_device *dev, u32 tile_flags)
|
|
{
|
|
switch (tile_flags & NOUVEAU_GEM_TILE_LAYOUT_MASK) {
|
|
case 0x0000:
|
|
case 0xfe00:
|
|
case 0xdb00:
|
|
case 0x1100:
|
|
return true;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
int
|
|
nvc0_vram_new(struct drm_device *dev, u64 size, u32 align, u32 ncmin,
|
|
u32 type, struct nouveau_vram **pvram)
|
|
{
|
|
struct drm_nouveau_private *dev_priv = dev->dev_private;
|
|
struct ttm_bo_device *bdev = &dev_priv->ttm.bdev;
|
|
struct ttm_mem_type_manager *man = &bdev->man[TTM_PL_VRAM];
|
|
struct nouveau_mm *mm = man->priv;
|
|
struct nouveau_mm_node *r;
|
|
struct nouveau_vram *vram;
|
|
int ret;
|
|
|
|
size >>= 12;
|
|
align >>= 12;
|
|
ncmin >>= 12;
|
|
|
|
vram = kzalloc(sizeof(*vram), GFP_KERNEL);
|
|
if (!vram)
|
|
return -ENOMEM;
|
|
|
|
INIT_LIST_HEAD(&vram->regions);
|
|
vram->dev = dev_priv->dev;
|
|
vram->memtype = type;
|
|
vram->size = size;
|
|
|
|
mutex_lock(&mm->mutex);
|
|
do {
|
|
ret = nouveau_mm_get(mm, 1, size, ncmin, align, &r);
|
|
if (ret) {
|
|
mutex_unlock(&mm->mutex);
|
|
nv50_vram_del(dev, &vram);
|
|
return ret;
|
|
}
|
|
|
|
list_add_tail(&r->rl_entry, &vram->regions);
|
|
size -= r->length;
|
|
} while (size);
|
|
mutex_unlock(&mm->mutex);
|
|
|
|
r = list_first_entry(&vram->regions, struct nouveau_mm_node, rl_entry);
|
|
vram->offset = (u64)r->offset << 12;
|
|
*pvram = vram;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
nvc0_vram_init(struct drm_device *dev)
|
|
{
|
|
struct drm_nouveau_private *dev_priv = dev->dev_private;
|
|
|
|
dev_priv->vram_size = nv_rd32(dev, 0x10f20c) << 20;
|
|
dev_priv->vram_size *= nv_rd32(dev, 0x121c74);
|
|
dev_priv->vram_rblock_size = 4096;
|
|
return 0;
|
|
}
|