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/*
* Copyright (C) 2010 Francisco Jerez.
* 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 THE COPYRIGHT OWNER(S) 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.
*
*/
#include <subdev/fb.h>
struct nv20_fb_priv {
struct nouveau_fb base;
};
int
nv20_fb_vram_init(struct nouveau_fb *pfb)
{
u32 pbus1218 = nv_rd32(pfb, 0x001218);
switch (pbus1218 & 0x00000300) {
case 0x00000000: pfb->ram.type = NV_MEM_TYPE_SDRAM; break;
case 0x00000100: pfb->ram.type = NV_MEM_TYPE_DDR1; break;
case 0x00000200: pfb->ram.type = NV_MEM_TYPE_GDDR3; break;
case 0x00000300: pfb->ram.type = NV_MEM_TYPE_GDDR2; break;
}
pfb->ram.size = (nv_rd32(pfb, 0x10020c) & 0xff000000);
pfb->ram.parts = (nv_rd32(pfb, 0x100200) & 0x00000003) + 1;
return nv_rd32(pfb, 0x100320);
}
void
nv20_fb_tile_init(struct nouveau_fb *pfb, int i, u32 addr, u32 size, u32 pitch,
u32 flags, struct nouveau_fb_tile *tile)
{
tile->addr = 0x00000001 | addr;
tile->limit = max(1u, addr + size) - 1;
tile->pitch = pitch;
if (flags & 4) {
pfb->tile.comp(pfb, i, size, flags, tile);
tile->addr |= 2;
}
}
static void
nv20_fb_tile_comp(struct nouveau_fb *pfb, int i, u32 size, u32 flags,
struct nouveau_fb_tile *tile)
{
u32 tiles = DIV_ROUND_UP(size, 0x40);
u32 tags = round_up(tiles / pfb->ram.parts, 0x40);
if (!nouveau_mm_head(&pfb->tags, 1, tags, tags, 1, &tile->tag)) {
if (!(flags & 2)) tile->zcomp = 0x00000000; /* Z16 */
else tile->zcomp = 0x04000000; /* Z24S8 */
tile->zcomp |= tile->tag->offset;
tile->zcomp |= 0x80000000; /* enable */
#ifdef __BIG_ENDIAN
tile->zcomp |= 0x08000000;
#endif
}
}
void
nv20_fb_tile_fini(struct nouveau_fb *pfb, int i, struct nouveau_fb_tile *tile)
{
tile->addr = 0;
tile->limit = 0;
tile->pitch = 0;
tile->zcomp = 0;
nouveau_mm_free(&pfb->tags, &tile->tag);
}
void
nv20_fb_tile_prog(struct nouveau_fb *pfb, int i, struct nouveau_fb_tile *tile)
{
nv_wr32(pfb, 0x100244 + (i * 0x10), tile->limit);
nv_wr32(pfb, 0x100248 + (i * 0x10), tile->pitch);
nv_wr32(pfb, 0x100240 + (i * 0x10), tile->addr);
nv_rd32(pfb, 0x100240 + (i * 0x10));
nv_wr32(pfb, 0x100300 + (i * 0x04), tile->zcomp);
}
static int
nv20_fb_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
struct nouveau_oclass *oclass, void *data, u32 size,
struct nouveau_object **pobject)
{
struct nv20_fb_priv *priv;
int ret;
ret = nouveau_fb_create(parent, engine, oclass, &priv);
*pobject = nv_object(priv);
if (ret)
return ret;
priv->base.memtype_valid = nv04_fb_memtype_valid;
priv->base.ram.init = nv20_fb_vram_init;
priv->base.tile.regions = 8;
priv->base.tile.init = nv20_fb_tile_init;
priv->base.tile.comp = nv20_fb_tile_comp;
priv->base.tile.fini = nv20_fb_tile_fini;
priv->base.tile.prog = nv20_fb_tile_prog;
return nouveau_fb_preinit(&priv->base);
}
struct nouveau_oclass
nv20_fb_oclass = {
.handle = NV_SUBDEV(FB, 0x20),
.ofuncs = &(struct nouveau_ofuncs) {
.ctor = nv20_fb_ctor,
.dtor = _nouveau_fb_dtor,
.init = _nouveau_fb_init,
.fini = _nouveau_fb_fini,
},
};
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